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<meta name="keywords" content="C0268547, acidemia, argininosuccinate, acidemias, argininosuccinate, aciduria, argininosuccinic, acidurias, argininosuccinic, arginino succinase deficiencies, arginino succinase deficiency, argininosuccinase deficiency, argininosuccinate acidemia, argininosuccinate acidemias, argininosuccinate lyase deficiencies, argininosuccinate lyase deficiency, argininosuccinatelyase deficiency, argininosuccinic acid lyase deficiency, argininosuccinic acidemia, argininosuccinic aciduria, argininosuccinic acidurias, argininosuccinicaciduria, argininosuccinicacidurias, argininosuccinyl-coa lyase deficiency, arginosuccinase deficiency, asa deficiencies, asa deficiency, asal deficiency, asauria, asl, asl deficiencies, asl deficiency, asl-gene related argininosuccinate lyase deficiency, deficiencies, arginino succinase, deficiencies, argininosuccinate lyase, deficiencies, asa, deficiencies, asl, deficiency of argininosuccinate lyase, deficiency, arginino succinase, deficiency, argininosuccinate lyase, deficiency, asa, deficiency, asl, disease or syndrome, inborn error of urea synthesis, arginino succinic type, urea cycle disorder, arginino succinase type, autosomal dominant, autosomal recessive, birth defects, chromosomal disease, chromosome, clinical features, clinical findings, clinical genetics, clinical recommendations, clinvar, congenital chromosomal disease, consumer genetic resources, cytogenetic location, disease characteristics, disease definitions, disease descriptions, disease ontology, disease synonyms, disease vocabulary, dysmorphology, entrez, familial disease, gene, gene-disease relationship, genereviews, genetic disease, genetic disorder, genetic terminology, genetic testing registry, genetics home reference, genomic disease, gtr, hereditary disease, heritable disease, hpo, human phenotype ontology, inherited disease, management guidelines, maternal inheritance, medgen, medical genetics, medical subject headings, mesh, mitochondrial inheritance, mode of inheritance, national center for biotechnology information, national institutes of health, national library of medicine, ncbi, nih, nlm, omim, ordo, orphanet, paternal inheritance, phenome, position statements, professional practice guidelines, rare disease, reference sequence, refseq, snomed ct, syndrome, undiagnosed diseases, x-linked recessive" /><meta name="description" content="Deficiency of argininosuccinate lyase (ASL), the enzyme that cleaves argininosuccinic acid to produce arginine and fumarate in the fourth step of the urea cycle, may present as a severe neonatal-onset form or a late-onset form: The severe neonatal-onset form is characterized by hyperammonemia within the first few days after birth that can manifest as increasing lethargy, somnolence, refusal to feed, vomiting, tachypnea, and respiratory alkalosis. Absence of treatment leads to worsening lethargy, seizures, coma, and even death. In contrast, the manifestations of late-onset form range from episodic hyperammonemia triggered by acute infection or stress to cognitive impairment, behavioral abnormalities, and/or learning disabilities in the absence of any documented episodes of hyperammonemia. Manifestations of ASL deficiency that appear to be unrelated to the severity or duration of hyperammonemic episodes: Neurocognitive deficiencies (attention-deficit/hyperactivity disorder, developmental delay, seizures, and learning disability). Liver disease (hepatitis, cirrhosis). Trichorrhexis nodosa (coarse brittle hair that breaks easily). Systemic hypertension." /><meta name="robots" content="index,nofollow,noarchive" />
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<!--
UID=78687
ConceptID=C0268547
-->
<!--imgCountBooks = 1--><div class="ncbi_carousel" data-ncbicarousel-config="imageWidth:'100px',numItemsVisible:2,toggler:false"><div class="nc_header"><span class="img_strip_title">Image</span></div><div class="nc_content"><div class="nc_item"><a class="figpopup"><img alt="Image from GeneReviews" src="/books/NBK51784/bin/args-aciduria-Image001.gif" src-large="/books/NBK51784/bin/args-aciduria-Image001.jpg" /></a><br /><a href="/books/NBK51784/figure/args-aciduria.F1/" title="GeneReviews" target="_blank">details</a></div></div></div><h1 class="medgenTitle"><div class="MedGenTitleText">Argininosuccinate lyase deficiency</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78687</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0268547</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Arginino succinase deficiency; Argininosuccinate acidemia; ARGININOSUCCINIC ACID LYASE DEFICIENCY; Argininosuccinic Aciduria; ASA deficiency; ASL DEFICIENCY; Inborn error of urea synthesis, arginino succinic type; Urea cycle disorder, arginino succinase type</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Deficiency of argininosuccinate lyase (41013004); ASL-gene related argininosuccinate lyase deficiency (41013004); Argininosuccinate lyase deficiency (41013004); Argininosuccinic aciduria (41013004); ASAL deficiency (41013004); ASL deficiency (41013004)</td></tr>
<tr><td>Modes of inheritance:</td>
<td>
<div class="divPopper rprt" id="moi_141025"><div><strong>Autosomal recessive inheritance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>141025</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0441748</a></dd><dt><span class="dotprefix"></span></dt><dd>Intellectual Product</dd></dl></div></div></div>
<div class="spaceAbove">Source: Orphanet</div>
<div class="spaceAbove">A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).</div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#moi_141025" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Autosomal recessive inheritance</a><span> (Orphanet)</span></div></td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td><a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#target-gene-loc">Gene (location):<img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a><div class="display-none" id="target-gene-loc">
Gene(s) directly associated with<br />
this condition or phenotype.</div></td>
<td><a target="_blank" title="ASL - ID: 435 - NCBI Gene" href="/gene/435" class="medgenPMinfo">ASL</a> (7q11.21)</td></tr>
<tr><td colspan="2" class="small"> </td></tr><tr><td>HPO:</td>
<td><a target="_blank" title="Human Phenotype Ontology" href="https://hpo.jax.org/app/browse/term/HP:0025630">HP:0025630</a></td></tr>
<tr><td>Monarch Initiative:</td>
<td><a href="https://monarchinitiative.org/disease/MONDO:0008815" target="_blank">MONDO:0008815</a></td></tr>
<tr><td>OMIM<span class="superscript">®</span>:</td>
<td><a href="https://omim.org/entry/207900" target="_blank">207900</a></td></tr>
<tr><td>Orphanet:</td>
<td><a target="_blank" title="Orphanet: The portal for rare diseases and orphan drugs" href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?lng=EN&amp;Expert=23">ORPHA23</a></td></tr></tbody></table></div><div class="rprt-body jig-ncbiinpagenav" data-jigconfig="smoothScroll: false, gotoTopLink: true, gotoTopLinkText: '', gotoTopLinkAttrs: {'title': 'Go to the top of the page'},allHeadingLevels: ['h1'], topOfPageTOC: true, tocId: 'my-toc'"><div id="rprt-tabs-1" class="rprt-tab"><div id="tb-termsProp-1"><div class="leftCol mgCol"><div>
<div class="portlet mgSection" id="ID_100">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Definition">Definition</h1><a sid="100" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">Deficiency of argininosuccinate lyase (ASL), the enzyme that cleaves argininosuccinic acid to produce arginine and fumarate in the fourth step of the urea cycle, may present as a severe neonatal-onset form or a late-onset form: The severe neonatal-onset form is characterized by hyperammonemia within the first few days after birth that can manifest as increasing lethargy, somnolence, refusal to feed, vomiting, tachypnea, and respiratory alkalosis. Absence of treatment leads to worsening lethargy, seizures, coma, and even death. In contrast, the manifestations of late-onset form range from episodic hyperammonemia triggered by acute infection or stress to cognitive impairment, behavioral abnormalities, and/or learning disabilities in the absence of any documented episodes of hyperammonemia. Manifestations of ASL deficiency that appear to be unrelated to the severity or duration of hyperammonemic episodes: Neurocognitive deficiencies (attention-deficit/hyperactivity disorder, developmental delay, seizures, and learning disability). Liver disease (hepatitis, cirrhosis). Trichorrhexis nodosa (coarse brittle hair that breaks easily). Systemic hypertension. [from <a title="GeneReviews" href="https://www.ncbi.nlm.nih.gov/books/NBK1116" class="defSource" target="_blank">GeneReviews</a>]</div>
</div>
<div class="portlet mgSection" id="ID_117">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Additional_descriptions">Additional descriptions</h1><a sid="117" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><div class="mgSection"><strong>From OMIM</strong><br />Argininosuccinic aciduria is an autosomal recessive disorder of the urea cycle. Urea cycle disorders are characterized by the triad of hyperammonemia, encephalopathy, and respiratory alkalosis. Five disorders involving different defects in the biosynthesis of the enzymes of the urea cycle have been described: ornithine transcarbamylase deficiency (311250), carbamyl phosphate synthetase deficiency (237300), argininosuccinate synthetase deficiency, or citrullinemia (215700), argininosuccinate lyase deficiency, and arginase deficiency (207800).&#13;
Erez (2013) reviewed argininosuccinic aciduria and progress in understanding it as a monogenic disorder that, like other inborn errors of metabolism, manifests as a multifactorial disorder at the phenotypic level.  <a target="_blank" href="http://www.omim.org/entry/207900">http://www.omim.org/entry/207900</a></div><div class="mgSection"><strong>From MedlinePlus Genetics</strong><br />Argininosuccinic aciduria is an inherited disorder that causes ammonia to accumulate in the blood. Ammonia, which is formed when proteins are broken down in the body, is toxic if the levels become too high. The nervous system is especially sensitive to the effects of excess ammonia.<br /><br />Argininosuccinic aciduria usually becomes evident in the first few days of life. An infant with argininosuccinic aciduria may be lacking in energy (lethargic) or unwilling to eat, and have a poorly controlled breathing rate or body temperature. Some babies with this disorder experience seizures or unusual body movements, or go into a coma. Complications from argininosuccinic aciduria may include developmental delay and intellectual disability. Progressive liver damage, high blood pressure (hypertension), skin lesions, and brittle hair may also be seen.<br /><br />Occasionally, individuals may inherit a mild form of the disorder. These individuals can have an accumulation of ammonia in the bloodstream only during periods of illness or other stress, or mild intellectual disability or learning disabilities with no evidence of elevated ammonia levels.  <a target="_blank" href="https://medlineplus.gov/genetics/condition/argininosuccinic-aciduria">https://medlineplus.gov/genetics/condition/argininosuccinic-aciduria</a></div></div>
</div>
<div class="portlet mgSection" id="ID_102">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Clinical_features">Clinical features</h1><a sid="102" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat"><strong>From HPO</strong><br />
<div class="divPopper rprt" id="clin_116067"><div><strong>Aminoaciduria</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116067</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0238621</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">An increased concentration of an amino acid in the urine.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/116067">Feature record</a> | <a href="/medgen?term=%22Aminoaciduria%22%5BClinical%20Features%5D%20OR%20116067%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_78642"><div><strong>Oroticaciduria</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78642</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0268128</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An increased concentration of orotic acid in the urine.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/78642">Feature record</a> | <a href="/medgen?term=%22Oroticaciduria%22%5BClinical%20Features%5D%20OR%2078642%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_746019"><div><strong>Failure to thrive</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>746019</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2315100</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/746019">Feature record</a> | <a href="/medgen?term=%22Failure%20to%20thrive%22%5BClinical%20Features%5D%20OR%20746019%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_42428"><div><strong>Hepatomegaly</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>42428</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0019209</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Abnormally increased size of the liver.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/42428">Feature record</a> | <a href="/medgen?term=%22Hepatomegaly%22%5BClinical%20Features%5D%20OR%2042428%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_12124"><div><strong>Vomiting</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>12124</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0042963</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/12124">Feature record</a> | <a href="/medgen?term=%22Vomiting%22%5BClinical%20Features%5D%20OR%2012124%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_116093"><div><strong>Hepatic fibrosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116093</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0239946</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The presence of excessive fibrous connective tissue in the liver. Fibrosis is a reparative or reactive process.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/116093">Feature record</a> | <a href="/medgen?term=%22Hepatic%20fibrosis%22%5BClinical%20Features%5D%20OR%20116093%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326521"><div><strong>Protein avoidance</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326521</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1839531</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326521">Feature record</a> | <a href="/medgen?term=%22Protein%20avoidance%22%5BClinical%20Features%5D%20OR%20326521%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_436211"><div><strong>Feeding difficulties in infancy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>436211</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2674608</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Impaired feeding performance of an infant as manifested by difficulties such as weak and ineffective sucking, brief bursts of sucking, and falling asleep during sucking. There may be difficulties with chewing or maintaining attention.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/436211">Feature record</a> | <a href="/medgen?term=%22Feeding%20difficulties%20in%20infancy%22%5BClinical%20Features%5D%20OR%20436211%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_2337"><div><strong>Cerebral edema</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>2337</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0006114</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">Abnormal accumulation of fluid in the brain.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/2337">Feature record</a> | <a href="/medgen?term=%22Cerebral%20edema%22%5BClinical%20Features%5D%20OR%202337%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_849"><div><strong>Cerebellar ataxia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>849</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0007758</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/849">Feature record</a> | <a href="/medgen?term=%22Cerebellar%20ataxia%22%5BClinical%20Features%5D%20OR%20849%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1054"><div><strong>Coma</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1054</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0009421</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The complete absence of wakefulness and consciousness, which is evident through a lack of response to any form of external stimuli.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1054">Feature record</a> | <a href="/medgen?term=%22Coma%22%5BClinical%20Features%5D%20OR%201054%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_7310"><div><strong>Lethargy</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>7310</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0023380</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">A state of fatigue, either physical or mental slowness and sluggishness, with difficulties in initiating or performing simple tasks. Distinguished from apathy which implies indifference and a lack of desire or interest in the task. A person with lethargy may have the desire, but not the energy to engage in personal or socially relevant tasks.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/7310">Feature record</a> | <a href="/medgen?term=%22Lethargy%22%5BClinical%20Features%5D%20OR%207310%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_20693"><div><strong>Seizure</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>20693</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0036572</a></dd><dt><span class="dotprefix"></span></dt><dd>Sign or Symptom</dd></dl></div></div></div>
<div class="spaceAbove">A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/20693">Feature record</a> | <a href="/medgen?term=%22Seizure%22%5BClinical%20Features%5D%20OR%2020693%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_107838"><div><strong>Global developmental delay</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>107838</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0557874</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/107838">Feature record</a> | <a href="/medgen?term=%22Global%20developmental%20delay%22%5BClinical%20Features%5D%20OR%20107838%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_397841"><div><strong>Irritability</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>397841</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C2700617</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental Process</dd></dl></div></div></div>
<div class="spaceAbove">A proneness to anger, i.e., a tendency to become easily bothered or annoyed.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen?term=%22Irritability%22%5BClinical%20Features%5D%20OR%20397841%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_811461"><div><strong>Intellectual disability</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>811461</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C3714756</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div></div>
<div class="spaceAbove">Intellectual disability, previously referred to as mental retardation, is characterized by subnormal intellectual functioning that occurs during the developmental period. It is defined by an IQ score below 70.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/811461">Feature record</a> | <a href="/medgen?term=%22Intellectual%20disability%22%5BClinical%20Features%5D%20OR%20811461%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1841602"><div><strong>Elevated CSF argininosuccinic acid concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1841602</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5826623</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Concentration of argininosuccinic acid in the cerebrospinal fluid (CSF) above the upper limit of normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1841602">Feature record</a> | <a href="/medgen?term=%22Elevated%20CSF%20argininosuccinic%20acid%20concentration%22%5BClinical%20Features%5D%20OR%201841602%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1411"><div><strong>Respiratory alkalosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1411</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0002064</a></dd><dt><span class="dotprefix"></span></dt><dd>Pathologic Function</dd></dl></div></div></div>
<div class="spaceAbove">Alkalosis due to excess loss of carbon dioxide from the body.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1411">Feature record</a> | <a href="/medgen?term=%22Respiratory%20alkalosis%22%5BClinical%20Features%5D%20OR%201411%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_57497"><div><strong>Elevated circulating aspartate aminotransferase concentration</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>57497</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0151904</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">The concentration of aspartate aminotransferase (AST) in the blood circulation is above the upper limit of normal.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/57497">Feature record</a> | <a href="/medgen?term=%22Elevated%20circulating%20aspartate%20aminotransferase%20concentration%22%5BClinical%20Features%5D%20OR%2057497%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_326901"><div><strong>Hyperglutaminemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>326901</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1839533</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An increased concentration of glutamine in the blood.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/326901">Feature record</a> | <a href="/medgen?term=%22Hyperglutaminemia%22%5BClinical%20Features%5D%20OR%20326901%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_333343"><div><strong>Episodic ammonia intoxication</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>333343</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1839541</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/333343">Feature record</a> | <a href="/medgen?term=%22Episodic%20ammonia%20intoxication%22%5BClinical%20Features%5D%20OR%20333343%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_892673"><div><strong>Hypoargininemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>892673</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C4025095</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">A decreased concentration of arginine in the blood.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/892673">Feature record</a> | <a href="/medgen?term=%22Hypoargininemia%22%5BClinical%20Features%5D%20OR%20892673%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1705835"><div><strong>Increased circulating argininosuccinic acid</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1705835</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5139381</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">An increased level of the non-proteinogenic amino acid argininosuccinic acid in the blood circulation.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1705835">Feature record</a> | <a href="/medgen?term=%22Increased%20circulating%20argininosuccinic%20acid%22%5BClinical%20Features%5D%20OR%201705835%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_1802066"><div><strong>Hyperammonemia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1802066</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C5574662</a></dd><dt><span class="dotprefix"></span></dt><dd>Laboratory or Test Result</dd></dl></div></div></div>
<div class="spaceAbove">An increased concentration of ammonia in the blood.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen?term=%22Hyperammonemia%22%5BClinical%20Features%5D%20OR%201802066%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_82668"><div><strong>Trichorrhexis nodosa</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>82668</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0263485</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Trichorrhexis nodosa is the formation of nodes along the hair shaft through which breakage readily occurs. It is thus a focal defect in the hair fiber that is characterized by thickening or weak points (nodes) that cause the hair to break off easily. The result is defective, abnormally fragile hair.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/82668">Feature record</a> | <a href="/medgen?term=%22Trichorrhexis%20nodosa%22%5BClinical%20Features%5D%20OR%2082668%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_120480"><div><strong>Brittle hair</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>120480</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0263490</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Fragile, easily breakable hair, i.e., with reduced tensile strength.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/120480">Feature record</a> | <a href="/medgen?term=%22Brittle%20hair%22%5BClinical%20Features%5D%20OR%20120480%5Buid%5D">Search on this feature</a></div></div>
<div class="divPopper rprt" id="clin_75809"><div><strong>Dry hair</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>75809</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C0277960</a></dd><dt><span class="dotprefix"></span></dt><dd>Finding</dd></dl></div></div></div>
<div class="spaceAbove">Hair that lacks the luster (shine or gleam) of normal hair.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/75809">Feature record</a> | <a href="/medgen?term=%22Dry%20hair%22%5BClinical%20Features%5D%20OR%2075809%5Buid%5D">Search on this feature</a></div></div><div class="TreeLite" data-jigconfig="closed: 1"><div class="concept-def"><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().openAll(); return false;">Show all</a><a class="small" href="#" onclick="jQuery(&quot;.TreeLite&quot;,&quot;#ID_102&quot;).TreeLite().closeAll(); return false;">Hide all</a></div><ul><li><span class="TLline">Abnormality of metabolism/homeostasis</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_57497" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated circulating aspartate aminotransferase concentration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_333343" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Episodic ammonia intoxication</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1802066" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hyperammonemia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326901" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hyperglutaminemia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_892673" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hypoargininemia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1705835" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Increased circulating argininosuccinic acid</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1411" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Respiratory alkalosis</a></span></li></ul></li><li><span class="TLline">Abnormality of the digestive system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_436211" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Feeding difficulties in infancy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_116093" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hepatic fibrosis</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_42428" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hepatomegaly</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_326521" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Protein avoidance</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_12124" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Vomiting</a></span></li></ul></li><li><span class="TLline">Abnormality of the genitourinary system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_116067" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Aminoaciduria</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_78642" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Oroticaciduria</a></span></li></ul></li><li><span class="TLline">Abnormality of the integument</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_120480" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Brittle hair</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_75809" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Dry hair</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_82668" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Trichorrhexis nodosa</a></span></li></ul></li><li><span class="TLline">Abnormality of the nervous system</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_849" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebellar ataxia</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_2337" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cerebral edema</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1054" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Coma</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_1841602" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Elevated CSF argininosuccinic acid concentration</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_107838" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Global developmental delay</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_811461" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Intellectual disability</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_397841" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Irritability</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_7310" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Lethargy</a></span></li><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_20693" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Seizure</a></span></li></ul></li><li><span class="TLline">Growth abnormality</span><ul><li class="TLline">
<span class="TLline"><a title="click for more information" class="jig-ncbipopper" href="#clin_746019" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Failure to thrive</a></span></li></ul></li></ul></div></div>
</div>
<div class="portlet mgSection" id="ID_118">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Term_Hierarchy">Term Hierarchy</h1><a sid="118" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln HierarchyGTR"><div class="jig-ncbitabs"><ul><li><a href="#tabGTR">GTR</a></li><li><a href="#tabMGEN">MeSH</a></li><li><a href="#tabORDO">Orphanet</a></li></ul><div id="tabGTR"><div class="search_result"><div class="rprts"><div class="chiclet_legend"><span class="chiclet_list" style="position:static;"><span title="Clinical test" class="chiclet Ccolor round">C</span><span>Clinical test,  </span><span title="Research test" class="chiclet Rcolor round">R</span><span>Research test,  </span><span title="OMIM" class="chiclet Ocolor ">O</span><span>OMIM,  </span><span title="GeneReview" class="chiclet Gcolor">G</span><span><em>GeneReviews</em>,  </span><span title="ClinVar" class="chiclet Vcolor">V</span><span>ClinVar  </span></span></div><div id="hierarchy" class="margin_t1"><div class="ds_tree"><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C5886841[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1857273">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/1857273" ref="tree=GTR&amp;ncbi_uid=1857273&amp;link_uid=1857273" title="View MedGen record for 'Disorder of amino acid metabolism'">Disorder of amino acid metabolism</a></span><ul><li class="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0268547[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=78687">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=78687" target="_blank" href="/omim/207900">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/?term=(NBK1217%20OR%20NBK51784)%20AND%20gene%5Bbook%5D&amp;showtype=onebook" ref="ncbi_uid=78687">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=78687" ref="ncbi_uid=78687">V</a></span></span><span class="TLline">Argininosuccinate lyase deficiency</span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C4721769[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=1648491">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=1648491" target="_blank" href="/omim/215700">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/?term=(NBK1217%20OR%20NBK1458)%20AND%20gene%5Bbook%5D&amp;showtype=onebook" ref="ncbi_uid=1648491">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=1648491" ref="ncbi_uid=1648491">V</a></span></span><span class="TLline"><a href="/medgen/1648491" ref="tree=GTR&amp;ncbi_uid=1648491&amp;link_uid=1648491" title="View MedGen record for 'Citrullinemia type I'">Citrullinemia type I</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0019880[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=42485">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=42485" ref="ncbi_uid=42485">V</a></span></span><span class="TLline"><a href="/medgen/42485" ref="tree=GTR&amp;ncbi_uid=42485&amp;link_uid=42485" title="View MedGen record for 'Homocystinuria'">Homocystinuria</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0024776[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=6217">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1319/" ref="ncbi_uid=6217">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=6217" ref="ncbi_uid=6217">V</a></span></span><span class="TLline"><a href="/medgen/6217" ref="tree=GTR&amp;ncbi_uid=6217&amp;link_uid=6217" title="View MedGen record for 'Maple syrup urine disease'">Maple syrup urine disease</a></span><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/78690" ref="tree=GTR&amp;ncbi_uid=78690&amp;link_uid=78690" title="View MedGen record for 'Intermittent maple syrup urine disease'">Intermittent maple syrup urine disease</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C1855371[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=343337">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=343337" target="_blank" href="/omim/248610">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1319/" ref="ncbi_uid=343337">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=343337" ref="ncbi_uid=343337">V</a></span></span><span class="TLline"><a href="/medgen/343337" ref="tree=GTR&amp;ncbi_uid=343337&amp;link_uid=343337" title="View MedGen record for 'Maple syrup urine disease type 2'">Maple syrup urine disease type 2</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C1855369[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=383668">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=383668" target="_blank" href="/omim/248600">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1319/" ref="ncbi_uid=383668">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=383668" ref="ncbi_uid=383668">V</a></span></span><span class="TLline"><a href="/medgen/383668" ref="tree=GTR&amp;ncbi_uid=383668&amp;link_uid=383668" title="View MedGen record for 'Maple syrup urine disease type 1A'">Maple syrup urine disease type 1A</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C2930990[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=443951">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=443951" target="_blank" href="/omim/248611">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1319/" ref="ncbi_uid=443951">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=443951" ref="ncbi_uid=443951">V</a></span></span><span class="TLline"><a href="/medgen/443951" ref="tree=GTR&amp;ncbi_uid=443951&amp;link_uid=443951" title="View MedGen record for 'Maple syrup urine disease type 1B'">Maple syrup urine disease type 1B</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/199627" ref="tree=GTR&amp;ncbi_uid=199627&amp;link_uid=199627" title="View MedGen record for 'Thiamine-responsive maple syrup urine disease'">Thiamine-responsive maple syrup urine disease</a></span></li></ul></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0031485[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=19244">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1504/" ref="ncbi_uid=19244">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=19244" ref="ncbi_uid=19244">V</a></span></span><span class="TLline"><a href="/medgen/19244" ref="tree=GTR&amp;ncbi_uid=19244&amp;link_uid=19244" title="View MedGen record for 'Phenylketonuria'">Phenylketonuria</a></span><ul><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0751434[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=199655">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=199655" target="_blank" href="/omim/261600">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=199655" ref="ncbi_uid=199655">V</a></span></span><span class="TLline"><a href="/medgen/199655" ref="tree=GTR&amp;ncbi_uid=199655&amp;link_uid=199655" title="View MedGen record for 'Classical phenylketonuria'">Classical phenylketonuria</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0268465[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=75682">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=75682" target="_blank" href="/omim/261630">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=75682" ref="ncbi_uid=75682">V</a></span></span><span class="TLline"><a href="/medgen/75682" ref="tree=GTR&amp;ncbi_uid=75682&amp;link_uid=75682" title="View MedGen record for 'Dihydropteridine reductase deficiency'">Dihydropteridine reductase deficiency</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=88435" target="_blank" href="/omim/261600">O</a></span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/88435" ref="tree=GTR&amp;ncbi_uid=88435&amp;link_uid=88435" title="View MedGen record for 'Maternal phenylketonuria'">Maternal phenylketonuria</a></span></li><li class="TLclosed"><span class="TLline"><a href="/medgen/1843033" ref="tree=GTR&amp;ncbi_uid=1843033&amp;link_uid=1843033" title="View MedGen record for 'Mild hyperphenylalaninemia'">Mild hyperphenylalaninemia</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/1842357" ref="tree=GTR&amp;ncbi_uid=1842357&amp;link_uid=1842357" title="View MedGen record for 'Mild phenylketonuria'">Mild phenylketonuria</a></span></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet unavailable round" title="Clinical test">C</span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet unavailable" title="OMIM">O</span><span class="chiclet unavailable" title="GeneReviews">G</span><span class="chiclet unavailable" title="ClinVar">V</span></span><span class="TLline"><a href="/medgen/1842546" ref="tree=GTR&amp;ncbi_uid=1842546&amp;link_uid=1842546" title="View MedGen record for 'Tetrahydrobiopterin-responsive hyperphenylalaninemia/phenylketonuria'">Tetrahydrobiopterin-responsive hyperphenylalaninemia/phenylketonuria</a></span></li></ul></li><li class="TLclosed"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0268490[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=75688">C</a></span><span class="chiclet unavailable round" title="Research Tests">R</span><span class="chiclet Ocolor" title="OMIM"><a ref="ncbi_uid=75688" target="_blank" href="/omim/276700">O</a></span><span class="chiclet Gcolor" title="GeneReviews"><a target="_blank" href="/books/NBK1515/" ref="ncbi_uid=75688">G</a></span><span class="chiclet Vcolor" title="ClinVar"><a target="_blank" href="/clinvar?LinkName=medgen_clinvar&amp;from_uid=75688" ref="ncbi_uid=75688">V</a></span></span><span class="TLline"><a href="/medgen/75688" ref="tree=GTR&amp;ncbi_uid=75688&amp;link_uid=75688" title="View MedGen record for 'Tyrosinemia type I'">Tyrosinemia type I</a></span></li></ul></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/1857273" ref="tree=MeSH" title="MedGen record for Disorder of amino acid metabolism">Disorder of amino acid metabolism</a></span><ul><li><span class="matched_ds">Argininosuccinate lyase deficiency</span></li></ul></li></ul></div></div><div id="tabORDO">Follow <a target="_blank" href="http://www.orpha.net/consor/cgi-bin/Disease_Classif.php?lng=EN&amp;data_id=156&amp;PatId=459&amp;search=Disease_Classif_Simple&amp;new=1" class="ital bold">this link</a> to review classifications for <span class="ital">Argininosuccinate lyase deficiency</span> in Orphanet.</div></div></div>
</div>
<div class="portlet mgSection" id="ID_112">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Conditions_with_this_feature">Conditions with this feature</h1><a sid="112" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln clinfeat">
<div class="divPopper rprt" id="rdis_350276"><div><strong>Citrullinemia type II</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>350276</dd><dt><span class="dotprefix"></span>Concept ID: </dt><dd><a href="/medgen/docs/help/#sources" target="_blank" title="Concept Unique Identifier from NLM's Unified Medical Language system (UMLS)&#10;Click for more information.">C1863844</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Citrin deficiency can manifest in newborns or infants as neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD), in older children as failure to thrive and dyslipidemia caused by citrin deficiency (FTTDCD), and in adults as recurrent hyperammonemia with neuropsychiatric symptoms in citrullinemia type II (CTLN2). Often citrin deficiency is characterized by strong preference for protein-rich and/or lipid-rich foods and aversion to carbohydrate-rich foods. NICCD. Children younger than age one year have a history of low birth weight with growth restriction and transient intrahepatic cholestasis, hepatomegaly, diffuse fatty liver, and parenchymal cellular infiltration associated with hepatic fibrosis, variable liver dysfunction, hypoproteinemia, decreased coagulation factors, hemolytic anemia, and/or hypoglycemia. NICCD is generally not severe and symptoms often resolve by age one year with appropriate treatment, although liver transplantation has been required in rare instances. FTTDCD. Beyond age one year, many children with citrin deficiency develop a protein-rich and/or lipid-rich food preference and aversion to carbohydrate-rich foods. Clinical abnormalities may include growth restriction, hypoglycemia, pancreatitis, severe fatigue, anorexia, and impaired quality of life. Laboratory changes are dyslipidemia, increased lactate-to-pyruvate ratio, higher levels of urinary oxidative stress markers, and considerable deviation in tricarboxylic acid (TCA) cycle metabolites. One or more decades later, some individuals with NICCD or FTTDCD develop CTLN2. CTLN2. Presentation is sudden and usually between ages 20 and 50 years. Manifestations are recurrent hyperammonemia with neuropsychiatric symptoms including nocturnal delirium, aggression, irritability, hyperactivity, delusions, disorientation, restlessness, drowsiness, loss of memory, flapping tremor, convulsive seizures, and coma. Symptoms are often provoked by alcohol and sugar intake, medication, and/or surgery. Affected individuals may or may not have a prior history of NICCD or FTTDCD.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/350276">Condition Record</a></div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_350276" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Citrullinemia type II</a></div></div>
</div>
<div class="portlet mgSection" id="ID_105">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Professional_guidelines">Professional guidelines</h1><a sid="105" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">PubMed<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpPM"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3>
<div class="nl"><a target="_blank" href="/pubmed/35279366">The diagnostic challenge of mild citrulline elevation at newborn screening.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Siri B,
Olivieri G,
Angeloni A,
Cairoli S,
Carducci C,
Cotugno G,
Di Michele S,
Giovanniello T,
La Marca G,
Lepri FR,
Novelli A,
Rossi C,
Semeraro M,
Dionisi-Vici C</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2022 Apr;135(4):327-332.
Epub 2022 Feb 20
doi: 10.1016/j.ymgme.2022.02.008.
<span class="bold">PMID: </span><a href="/pubmed/35279366" target="_blank">35279366</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19635676">Argininosuccinate lyase deficiency: longterm outcome of 13 patients detected by newborn screening.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ficicioglu C,
Mandell R,
Shih VE</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2009 Nov;98(3):273-7.
Epub 2009 Jun 25
doi: 10.1016/j.ymgme.2009.06.011.
<span class="bold">PMID: </span><a href="/pubmed/19635676" target="_blank">19635676</a><a href="/pmc/articles/PMC2773214" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/12684898">Neonatal screening for citrullinaemia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Sander J,
Janzen N,
Sander S,
Steuerwald U,
Das AM,
Scholl S,
Trefz FK,
Koch HG,
Häberle J,
Korall H,
Marquardt I,
Korenke C</span><br />
<span class="medgenPMjournal">Eur J Pediatr</span>
2003 Jun;162(6):417-20.
Epub 2003 Apr 8
doi: 10.1007/s00431-003-1177-z.
<span class="bold">PMID: </span><a href="/pubmed/12684898" target="_blank">12684898</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22argininosuccinate%20lyase%20deficiency%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">See all (7)</a></div><h3 class="subhead">Curated<a class="help jig-ncbi-popper" data-jig="ncbipopper" href="#guidelinesHelpCurated"><img class="pulldown" src="//static.pubmed.gov/portal/portal3rc.fcgi/4223267/img/4204968" /></a></h3><h3 class="nl vspace"><a href="https://www.acmg.net/PDFLibrary/Citrullinemia.pdf" target="_blank">American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, [Elevated Citrulline], Amino Acidemia/Urea Cycle Disorder, 2022</a></h3>
<h3 class="nl vspace"><a href="https://www.acmg.net/PDFLibrary/Citrulline-Algorithm.pdf" target="_blank">American College of Medical Genetics and Genomics, Elevated Citrulline: Amino Acidemia Algorithm, 2022</a></h3>
<h3 class="nl vspace"><a href="https://www.acmg.net/PDFLibrary/Argininosuccinic-Acidemia-Transition.pdf" target="_blank">American College of Medical Genetics and Genomics, Transition to Adult Health Care ACT Sheet, Argininosuccinic Acidemia, [Urea Cycle Disorder], 2012</a></h3>
</div>
</div>
<div class="display-none help-popup" id="guidelinesHelpPM">These guidelines are articles in PubMed that match specific search criteria developed by MedGen to capture the most relevant practice guidelines. This list may not be comprehensive and may include broader topics as well. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div><div class="display-none help-popup" id="guidelinesHelpCurated">These guidelines are manually curated by the MedGen team
to supplement articles available in PubMed. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div>
<div class="portlet mgSection" id="ID_103">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_clinical_studies">Recent clinical studies</h1><a sid="103" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><h3 class="subhead">Etiology</h3>
<div class="nl"><a target="_blank" href="/pubmed/37490345">Argininosuccinate lyase deficiency causes blood-brain barrier disruption via nitric oxide-mediated dysregulation of claudin expression.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kho J,
Polak U,
Jiang MM,
Odom JD,
Hunter JV,
Ali SM,
Burrage LC,
Nagamani SC,
Pautler RG,
Thompson HP,
Urayama A,
Jin Z,
Lee B</span><br />
<span class="medgenPMjournal">JCI Insight</span>
2023 Sep 8;8(17)
doi: 10.1172/jci.insight.168475.
<span class="bold">PMID: </span><a href="/pubmed/37490345" target="_blank">37490345</a><a href="/pmc/articles/PMC10544197" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31990680">Chronic liver disease and impaired hepatic glycogen metabolism in argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Burrage LC,
Madan S,
Li X,
Ali S,
Mohammad M,
Stroup BM,
Jiang MM,
Cela R,
Bertin T,
Jin Z,
Dai J,
Guffey D,
Finegold M;
Members of the Urea Cycle Disorders Consortium (UCDC),
Nagamani S,
Minard CG,
Marini J,
Masand P,
Schady D,
Shneider BL,
Leung DH,
Bali D,
Lee B</span><br />
<span class="medgenPMjournal">JCI Insight</span>
2020 Feb 27;5(4)
doi: 10.1172/jci.insight.132342.
<span class="bold">PMID: </span><a href="/pubmed/31990680" target="_blank">31990680</a><a href="/pmc/articles/PMC7101134" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30075114">Argininosuccinate Lyase Deficiency Causes an Endothelial-Dependent Form of Hypertension.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kho J,
Tian X,
Wong WT,
Bertin T,
Jiang MM,
Chen S,
Jin Z,
Shchelochkov OA,
Burrage LC,
Reddy AK,
Jiang H,
Abo-Zahrah R,
Ma S,
Zhang P,
Bissig KD,
Kim JJ,
Devaraj S,
Rodney GG,
Erez A,
Bryan NS,
Nagamani SCS,
Lee BH</span><br />
<span class="medgenPMjournal">Am J Hum Genet</span>
2018 Aug 2;103(2):276-287.
doi: 10.1016/j.ajhg.2018.07.008.
<span class="bold">PMID: </span><a href="/pubmed/30075114" target="_blank">30075114</a><a href="/pmc/articles/PMC6080833" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22241104">Argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Nagamani SC,
Erez A,
Lee B</span><br />
<span class="medgenPMjournal">Genet Med</span>
2012 May;14(5):501-7.
Epub 2012 Jan 5
doi: 10.1038/gim.2011.1.
<span class="bold">PMID: </span><a href="/pubmed/22241104" target="_blank">22241104</a><a href="/pmc/articles/PMC3709024" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21312326">Argininosuccinate lyase deficiency-argininosuccinic aciduria and beyond.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Erez A,
Nagamani SC,
Lee B</span><br />
<span class="medgenPMjournal">Am J Med Genet C Semin Med Genet</span>
2011 Feb 15;157C(1):45-53.
Epub 2011 Feb 10
doi: 10.1002/ajmg.c.30289.
<span class="bold">PMID: </span><a href="/pubmed/21312326" target="_blank">21312326</a><a href="/pmc/articles/PMC3073162" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Argininosuccinate%20lyase%20deficiency%22%20AND%20Etiology%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (24)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/38493042">Metabolic etiologies in children with infantile epileptic spasm syndrome: Experience at a tertiary pediatric neurology center.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Yüksel MF,
Doğulu N,
Yıldırım M,
Köse E,
Bektaş Ö,
Eminoğlu FT,
Teber S</span><br />
<span class="medgenPMjournal">Brain Dev</span>
2024 Jun;46(6):213-218.
Epub 2024 Mar 16
doi: 10.1016/j.braindev.2024.03.003.
<span class="bold">PMID: </span><a href="/pubmed/38493042" target="_blank">38493042</a></div>
<div class="nl"><a target="_blank" href="/pubmed/38198573">mRNA therapy corrects defective glutathione metabolism and restores ureagenesis in preclinical argininosuccinic aciduria.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Gurung S,
Timmermand OV,
Perocheau D,
Gil-Martinez AL,
Minnion M,
Touramanidou L,
Fang S,
Messina M,
Khalil Y,
Spiewak J,
Barber AR,
Edwards RS,
Pinto PL,
Finn PF,
Cavedon A,
Siddiqui S,
Rice L,
Martini PGV,
Ridout D,
Heywood W,
Hargreaves I,
Heales S,
Mills PB,
Waddington SN,
Gissen P,
Eaton S,
Ryten M,
Feelisch M,
Frassetto A,
Witney TH,
Baruteau J</span><br />
<span class="medgenPMjournal">Sci Transl Med</span>
2024 Jan 10;16(729):eadh1334.
doi: 10.1126/scitranslmed.adh1334.
<span class="bold">PMID: </span><a href="/pubmed/38198573" target="_blank">38198573</a><a href="/pmc/articles/PMC7615535" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33840128">Long-term outcome of urea cycle disorders: Report from a nationwide study in Japan.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kido J,
Matsumoto S,
Häberle J,
Nakajima Y,
Wada Y,
Mochizuki N,
Murayama K,
Lee T,
Mochizuki H,
Watanabe Y,
Horikawa R,
Kasahara M,
Nakamura K</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2021 Jul;44(4):826-837.
Epub 2021 Apr 18
doi: 10.1002/jimd.12384.
<span class="bold">PMID: </span><a href="/pubmed/33840128" target="_blank">33840128</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22241104">Argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Nagamani SC,
Erez A,
Lee B</span><br />
<span class="medgenPMjournal">Genet Med</span>
2012 May;14(5):501-7.
Epub 2012 Jan 5
doi: 10.1038/gim.2011.1.
<span class="bold">PMID: </span><a href="/pubmed/22241104" target="_blank">22241104</a><a href="/pmc/articles/PMC3709024" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/21312326">Argininosuccinate lyase deficiency-argininosuccinic aciduria and beyond.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Erez A,
Nagamani SC,
Lee B</span><br />
<span class="medgenPMjournal">Am J Med Genet C Semin Med Genet</span>
2011 Feb 15;157C(1):45-53.
Epub 2011 Feb 10
doi: 10.1002/ajmg.c.30289.
<span class="bold">PMID: </span><a href="/pubmed/21312326" target="_blank">21312326</a><a href="/pmc/articles/PMC3073162" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Argininosuccinate%20lyase%20deficiency%22%20AND%20Diagnosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (34)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/30075114">Argininosuccinate Lyase Deficiency Causes an Endothelial-Dependent Form of Hypertension.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kho J,
Tian X,
Wong WT,
Bertin T,
Jiang MM,
Chen S,
Jin Z,
Shchelochkov OA,
Burrage LC,
Reddy AK,
Jiang H,
Abo-Zahrah R,
Ma S,
Zhang P,
Bissig KD,
Kim JJ,
Devaraj S,
Rodney GG,
Erez A,
Bryan NS,
Nagamani SCS,
Lee BH</span><br />
<span class="medgenPMjournal">Am J Hum Genet</span>
2018 Aug 2;103(2):276-287.
doi: 10.1016/j.ajhg.2018.07.008.
<span class="bold">PMID: </span><a href="/pubmed/30075114" target="_blank">30075114</a><a href="/pmc/articles/PMC6080833" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/22241104">Argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Nagamani SC,
Erez A,
Lee B</span><br />
<span class="medgenPMjournal">Genet Med</span>
2012 May;14(5):501-7.
Epub 2012 Jan 5
doi: 10.1038/gim.2011.1.
<span class="bold">PMID: </span><a href="/pubmed/22241104" target="_blank">22241104</a><a href="/pmc/articles/PMC3709024" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/10896281">Two novel mutations (E86A, R113W) in argininosuccinate lyase deficiency and evidence for highly variable splicing of the human argininosuccinate lyase gene.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Linnebank M,
Homberger A,
Rapp B,
Winter C,
Marquardt T,
Harms E,
Koch HG</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2000 Jun;23(4):308-12.
doi: 10.1023/a:1005690005439.
<span class="bold">PMID: </span><a href="/pubmed/10896281" target="_blank">10896281</a></div>
<div class="nl"><a target="_blank" href="/pubmed/7795361">Two cases suggesting a role for the L-arginine nitric oxide pathway in neonatal blood pressure regulation.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fakler CR,
Kaftan HA,
Nelin LD</span><br />
<span class="medgenPMjournal">Acta Paediatr</span>
1995 Apr;84(4):460-2.
doi: 10.1111/j.1651-2227.1995.tb13673.x.
<span class="bold">PMID: </span><a href="/pubmed/7795361" target="_blank">7795361</a></div>
<div class="nl"><a target="_blank" href="/pubmed/2370602">Citrate therapy in argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Iafolla AK,
Gale DS,
Roe CR</span><br />
<span class="medgenPMjournal">J Pediatr</span>
1990 Jul;117(1 Pt 1):102-5.
doi: 10.1016/s0022-3476(05)82456-4.
<span class="bold">PMID: </span><a href="/pubmed/2370602" target="_blank">2370602</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Argininosuccinate%20lyase%20deficiency%22%20AND%20Therapy%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (11)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/38493042">Metabolic etiologies in children with infantile epileptic spasm syndrome: Experience at a tertiary pediatric neurology center.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Yüksel MF,
Doğulu N,
Yıldırım M,
Köse E,
Bektaş Ö,
Eminoğlu FT,
Teber S</span><br />
<span class="medgenPMjournal">Brain Dev</span>
2024 Jun;46(6):213-218.
Epub 2024 Mar 16
doi: 10.1016/j.braindev.2024.03.003.
<span class="bold">PMID: </span><a href="/pubmed/38493042" target="_blank">38493042</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33840128">Long-term outcome of urea cycle disorders: Report from a nationwide study in Japan.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kido J,
Matsumoto S,
Häberle J,
Nakajima Y,
Wada Y,
Mochizuki N,
Murayama K,
Lee T,
Mochizuki H,
Watanabe Y,
Horikawa R,
Kasahara M,
Nakamura K</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2021 Jul;44(4):826-837.
Epub 2021 Apr 18
doi: 10.1002/jimd.12384.
<span class="bold">PMID: </span><a href="/pubmed/33840128" target="_blank">33840128</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33789861">Brain-lung-thyroid syndrome in a neonate with argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ediger K,
Hicks A,
Siriwardena K,
Joynt C</span><br />
<span class="medgenPMjournal">BMJ Case Rep</span>
2021 Mar 31;14(3)
doi: 10.1136/bcr-2020-241032.
<span class="bold">PMID: </span><a href="/pubmed/33789861" target="_blank">33789861</a><a href="/pmc/articles/PMC8016098" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/24166829">Mutations and polymorphisms in the human argininosuccinate lyase (ASL) gene.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Balmer C,
Pandey AV,
Rüfenacht V,
Nuoffer JM,
Fang P,
Wong LJ,
Häberle J</span><br />
<span class="medgenPMjournal">Hum Mutat</span>
2014 Jan;35(1):27-35.
Epub 2013 Nov 25
doi: 10.1002/humu.22469.
<span class="bold">PMID: </span><a href="/pubmed/24166829" target="_blank">24166829</a></div>
<div class="nl"><a target="_blank" href="/pubmed/19635676">Argininosuccinate lyase deficiency: longterm outcome of 13 patients detected by newborn screening.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ficicioglu C,
Mandell R,
Shih VE</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2009 Nov;98(3):273-7.
Epub 2009 Jun 25
doi: 10.1016/j.ymgme.2009.06.011.
<span class="bold">PMID: </span><a href="/pubmed/19635676" target="_blank">19635676</a><a href="/pmc/articles/PMC2773214" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Argininosuccinate%20lyase%20deficiency%22%20AND%20Prognosis%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (13)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/35279366">The diagnostic challenge of mild citrulline elevation at newborn screening.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Siri B,
Olivieri G,
Angeloni A,
Cairoli S,
Carducci C,
Cotugno G,
Di Michele S,
Giovanniello T,
La Marca G,
Lepri FR,
Novelli A,
Rossi C,
Semeraro M,
Dionisi-Vici C</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2022 Apr;135(4):327-332.
Epub 2022 Feb 20
doi: 10.1016/j.ymgme.2022.02.008.
<span class="bold">PMID: </span><a href="/pubmed/35279366" target="_blank">35279366</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31990680">Chronic liver disease and impaired hepatic glycogen metabolism in argininosuccinate lyase deficiency.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Burrage LC,
Madan S,
Li X,
Ali S,
Mohammad M,
Stroup BM,
Jiang MM,
Cela R,
Bertin T,
Jin Z,
Dai J,
Guffey D,
Finegold M;
Members of the Urea Cycle Disorders Consortium (UCDC),
Nagamani S,
Minard CG,
Marini J,
Masand P,
Schady D,
Shneider BL,
Leung DH,
Bali D,
Lee B</span><br />
<span class="medgenPMjournal">JCI Insight</span>
2020 Feb 27;5(4)
doi: 10.1172/jci.insight.132342.
<span class="bold">PMID: </span><a href="/pubmed/31990680" target="_blank">31990680</a><a href="/pmc/articles/PMC7101134" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31260111">Chronic liver involvement in urea cycle disorders.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Ranucci G,
Rigoldi M,
Cotugno G,
Bernabei SM,
Liguori A,
Gasperini S,
Goffredo BM,
Martinelli D,
Monti L,
Francalanci P,
Candusso M,
Parini R,
Dionisi-Vici C</span><br />
<span class="medgenPMjournal">J Inherit Metab Dis</span>
2019 Nov;42(6):1118-1127.
Epub 2019 Aug 25
doi: 10.1002/jimd.12144.
<span class="bold">PMID: </span><a href="/pubmed/31260111" target="_blank">31260111</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28888854">Quantitation of phenylbutyrate metabolites by UPLC-MS/MS demonstrates inverse correlation of phenylacetate:phenylacetylglutamine ratio with plasma glutamine levels.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Jiang Y,
Almannai M,
Sutton VR,
Sun Q,
Elsea SH</span><br />
<span class="medgenPMjournal">Mol Genet Metab</span>
2017 Nov;122(3):39-45.
Epub 2017 Aug 31
doi: 10.1016/j.ymgme.2017.08.011.
<span class="bold">PMID: </span><a href="/pubmed/28888854" target="_blank">28888854</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17326097">Argininosuccinate lyase deficiency: mutational spectrum in Italian patients and identification of a novel ASL pseudogene.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Trevisson E,
Salviati L,
Baldoin MC,
Toldo I,
Casarin A,
Sacconi S,
Cesaro L,
Basso G,
Burlina AB</span><br />
<span class="medgenPMjournal">Hum Mutat</span>
2007 Jul;28(7):694-702.
doi: 10.1002/humu.20498.
<span class="bold">PMID: </span><a href="/pubmed/17326097" target="_blank">17326097</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Argininosuccinate%20lyase%20deficiency%22%20AND%20Clinical%20prediction%20guides%2Fbroad%5Bfilter%5D%20%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (13)</a></div></div>
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<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Table_of_contents">Table of contents</h1><a sid="113" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln"><ul id="my-toc"></ul></div>
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A1%5F1" target="_blank">Analyte (8)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (39)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A1%5F2" target="_blank">Enzyme assay (3)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F12" target="_blank">Microsatellite instability testing (MSI) (1)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F18" target="_blank">Mutation scanning of select exons (4)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F9" target="_blank">Sequence analysis of select exons (9)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (59)</a></li>
<li><a href="/gtr/tests?term=C0268547%5bDISCUI%5d&amp;filter=method%3A2%5F19" target="_blank">Targeted variant analysis (14)</a></li>
<li class="portletSeeAll portletSeeAllPad"><total><a href="/gtr/tests?term=C0268547%5bDISCUI%5d" target="_blank">See all (74)</a></total></li>
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<div class="portlet_content ln"><ul><li><a href="https://www.omim.org/search?index=entry&amp;start=1&amp;limit=10&amp;sort=score%20desc&amp;field=number&amp;search=207900" target="_blank">OMIM</a></li><li><a href="http://www.orpha.net/consor/cgi-bin/OC_Exp.php?Expert=23" target="_blank">Orphanet</a></li><li><a href="https://clinicaltrials.gov/search?cond=Argininosuccinate%20lyase%20deficiency" target="_blank">ClinicalTrials.gov</a></li></ul></div>
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<div class="portlet_content ln"><ul class="a_poppers"><li><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22argininosuccinate%20lyase%20deficiency%22%5Btiab%3A~0%5D)%20AND%20(%22english%20and%20humans%22%5BFilter%5D)%20AND%20(%20(%22practice%20guideline%22%5BFilter%5D)%20OR%20(practice*%5Btitl%5D%20AND%20(guideline%5Btitl%5D%20OR%20parameter%5Btitl%5D%20OR%20resource%5Btitl%5D%20OR%20bulletin%5Btitl%5D%20OR%20best%5Btitl%5D))%20OR%20(genetic*%5Btitl%5D%20AND%20(evaluation%5Btitl%5D%20OR%20counseling%5Btitl%5D%20OR%20screening%5Btitl%5D%20OR%20test*%5Btitl%5D))%20OR%20(clinical%5Btitl%5D%20AND%20((expert%5Btitl%5D%20AND%20consensus%5Btitl%5D)%20OR%20utility%5Btitl%5D%20OR%20guideline*%5Btitl%5D))%20OR%20(management%5Btitl%5D%20AND%20(clinical%5Btitl%5D%20OR%20diagnos*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20pain%5Btitl%5D%20OR%20surveillance%5Btitl%5D%20OR%20emergency%5Btitl%5D%20OR%20guideline*%5Btitl%5D%20OR%20therap*))%20OR%20(treatment%5Btitl%5D%20AND%20((evaluation%5Btitl%5D%20AND%20diagnosis%5Btitl%5D)%20OR%20(assessment%5Btitl%5D%20AND%20prevention%5Btitl%5D)%20OR%20therap*))%20OR%20(Diagnos*%5Btitl%5D%20AND%20(prenatal%5Btitl%5D%20OR%20treatment%5Btitl%5D%20OR%20follow-up%5Btitl%5D%20OR%20statement%5Btitl%5D%20OR%20criteria%5Btitl%5D%20OR%20newborn%5Btitl%5D%20OR%20differential%5Btitl%5D%20OR%20neonatal%5Btitl%5D%20OR%20neonate%5Btitl%5D))%20OR%20(guideline*%5Btitl%5D%20AND%20(pharmacogenetic*%5Btitl%5D%20OR%20recommendation%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20evidence-based%5Btitl%5D%20OR%20consensus%5Btitl%5D%20OR%20(technical%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20(molecular%5Btitl%5D%20AND%20testing%5Btitl%5D)))%20OR%20(risk%5Btitl%5D%20AND%20assessment%5Btitl%5D)%20OR%20(recommendation*%5Btitl%5D%20AND%20(statement%5Btitl%5D%20OR%20Evidence-based%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(care%20AND%20((Patient%5Btitl%5D%20AND%20standard*%5Btitl%5D)%20OR%20primary%5Btitl%5D%20OR%20psychosocial%5Btitl%5D))%20OR%20(Health%5Btitl%5D%20AND%20supervision%5Btitl%5D)%20OR%20(statement%5Btitl%5D%20AND%20(policy%5Btitl%5D%20OR%20position%5Btitl%5D%20OR%20Consensus%5Btitl%5D))%20OR%20(pharmacogenetics%5Btitl%5D%20AND%20(Dosing%5Btitl%5D%20OR%20therap*%5Btitl%5D%20OR%20genotype*%5Btitl%5D%20OR%20drug*%5Btitl%5D))%20OR%20(Chemotherapy%5Btitl%5D%20AND%20decision*%5Btitl%5D)%20OR%20(screening%5Btitl%5D%20AND%20(newborn%5Btitl%5D%20OR%20neonat*%5Btitl%5D%20OR%20detection%5Btitl%5D%20OR%20diagnos*%5Btitl%5D))%20OR%20(criteria%5Btitl%5D%20OR%20genotype*%5Btitl%5D)%20)%20NOT%20(%22Case%20reports%22%5BPublication%20type%5D%20OR%20%22clinical%20study%22%5BPublication%20Type%5D%20OR%20%22randomized%20controlled%20trial%22%5BPublication%20Type%5D)" title="PubMed search">PubMed</a><div class="help-popup">See practice and clinical guidelines in PubMed. The search results may include broader topics and may not capture all published guidelines. See the <a href="/medgen/docs/faq/" title="Frequently asked questions" target="_blank">FAQ</a> for details.</div></li></ul><h3 class="subhead">Curated</h3><ul class="a_poppers"><li><a target="_blank" href="https://www.acmg.net/PDFLibrary/Citrullinemia.pdf">ACMG, ACT Sheet, 2022</a><div>American College of Medical Genetics and Genomics, Newborn Screening ACT Sheet, [Elevated Citrulline], Amino Acidemia/Urea Cycle Disorder, 2022</div></li><li><a target="_blank" href="https://www.acmg.net/PDFLibrary/Citrulline-Algorithm.pdf">ACMG Algorithm, 2022</a><div>American College of Medical Genetics and Genomics, Elevated Citrulline: Amino Acidemia Algorithm, 2022</div></li><li><a target="_blank" href="https://www.acmg.net/PDFLibrary/Argininosuccinic-Acidemia-Transition.pdf">ACMG ACT, 2012</a><div>American College of Medical Genetics and Genomics, Transition to Adult Health Care ACT Sheet, Argininosuccinic Acidemia, [Urea Cycle Disorder], 2012</div></li></ul></div>
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<div class="portlet_content ln"><ul><li><a href="http://www.diseaseinfosearch.org/Argininosuccinic+Aciduria/576" target="_blank">Genetic Alliance</a></li><li><a href="https://www.malacards.org/card/argininosuccinic_aciduria" target="_blank">MalaCards</a></li><li><a href="https://vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta?v:project=medlineplus&amp;query=Argininosuccinate%20lyase%20deficiency" target="_blank">MedlinePlus</a></li><li><a href="https://medlineplus.gov/genetics/condition/argininosuccinic-aciduria" target="_blank">MedlinePlusGenetics (GHR)</a></li><li><a href="https://rarediseases.info.nih.gov/diseases/5843/disease" target="_blank">NCATS Office of Rare Diseases Research (GARD)</a></li></ul></div>
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