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<meta name="keywords" content="C0085632, apathetic, apathetic behavior, apathy, emotionally apathetic, indifference, lack of feeling, emotion, interest, lack of feeling, emotion, interest, motivation, initiation, listless, listless behavior, listless mood, listlessness, mental or behavioral dysfunction, state of indifference, 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="Apathy is a quantitative reduction of interest, motivation and the initiation and persistence of goal-directed behavior, where often the accompanying emotions, thoughts, and social interactions are also diminished. The individual is typically non-reactive to provocations, positive or negative, and appears to not care. Distinguished from lethargy which involves lack of physical or mental energy." /><meta name="robots" content="index,nofollow,noarchive" />
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<title>Apathy (Concept Id: C0085632)
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<!--
UID=39083
ConceptID=C0085632
-->
<!--imgCountBooks = 0--><h1 class="medgenTitle"><div class="MedGenTitleText">Apathy</div></h1><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>39083</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.">C0085632</a></dd><dt><span class="dotprefix"></span></dt><dd>Mental or Behavioral Dysfunction</dd></dl></div></div><table class="medgenTable"><tbody><tr><td>Synonyms:</td>
<td>Apathetic; Apathetic behavior; Emotionally apathetic; Indifference; Lack of feeling, emotion, interest; Lack of feeling, emotion, interest, motivation, initiation; Listless; Listless behavior; Listless mood; Listlessness; State of indifference</td></tr>
<tr><td><span class="bold">SNOMED CT: </span></td>
<td>Indifference (20602000); Apathy (20602000); Apathetic behavior (20602000); Listless mood (20602000); Listless behavior (20602000); Listlessness (20602000); Emotionally apathetic (20602000); Apathetic (20602000); Listless (20602000)</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:0000741">HP:0000741</a></td></tr>
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<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">Apathy is a quantitative reduction of interest, motivation and the initiation and persistence of goal-directed behavior, where often the accompanying emotions, thoughts, and social interactions are also diminished. The individual is typically non-reactive to provocations, positive or negative, and appears to not care. Distinguished from lethargy which involves lack of physical or mental energy. [from <a title="Human Phenotype Ontology" href="http://www.human-phenotype-ontology.org" class="defSource" target="_blank">HPO</a>]</div>
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<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></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="matched_ds"><span class="chiclet_list"><span class="chiclet Ccolor round" title="Clinical test"><a target="_blank" href="/gtr/tests/?term=C0085632[DISCUI]&amp;test_type=Clinical" ref="ncbi_uid=39083">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">Apathy</span></li></ul></div></div></div></div></div><div id="tabMGEN"><div class="ds_tree"><ul><li><span class="TLline"><a href="/medgen/105425" ref="tree=MeSH" title="MedGen record for Abnormality of the nervous system">Abnormality of the nervous system</a></span><ul><li><span class="TLline"><a href="/medgen/868417" ref="tree=MeSH" title="MedGen record for Abnormal nervous system physiology">Abnormal nervous system physiology</a></span><ul><li><span class="TLline"><a href="/medgen/868938" ref="tree=MeSH" title="MedGen record for Abnormality of mental function">Abnormality of mental function</a></span><ul><li><span class="TLline"><a href="/medgen/1056192" ref="tree=MeSH" title="MedGen record for Abnormal affect">Abnormal affect</a></span><ul><li><span class="TLline"><a href="/medgen/1053648" ref="tree=MeSH" title="MedGen record for Abnormal volitional state">Abnormal volitional state</a></span><ul><li><span class="TLline"><a href="/medgen/96830" ref="tree=MeSH" title="MedGen record for Abnormal diminished volition">Abnormal diminished volition</a></span><ul><li><span class="matched_ds">Apathy</span></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></li></ul></div></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_11713"><div><strong>Tay-Sachs disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>11713</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.">C0039373</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">HEXA disorders are best considered as a disease continuum based on the amount of residual beta-hexosaminidase A (HEX A) enzyme activity. This, in turn, depends on the molecular characteristics and biological impact of the HEXA pathogenic variants. HEX A is necessary for degradation of GM2 ganglioside; without well-functioning enzymes, GM2 ganglioside builds up in the lysosomes of brain and nerve cells. The classic clinical phenotype is known as Tay-Sachs disease (TSD), characterized by progressive weakness, loss of motor skills beginning between ages three and six months, decreased visual attentiveness, and increased or exaggerated startle response with a cherry-red spot observable on the retina followed by developmental plateau and loss of skills after eight to ten months. Seizures are common by 12 months with further deterioration in the second year of life and death occurring between ages two and three years with some survival to five to seven years. Subacute juvenile TSD is associated with normal developmental milestones until age two years, when the emergence of abnormal gait or dysarthria is noted followed by loss of previously acquired skills and cognitive decline. Spasticity, dysphagia, and seizures are present by the end of the first decade of life, with death within the second decade of life, usually by aspiration. Late-onset TSD presents in older teens or young adults with a slowly progressive spectrum of neurologic symptoms including lower-extremity weakness with muscle atrophy, dysarthria, incoordination, tremor, mild spasticity and/or dystonia, and psychiatric manifestations including acute psychosis. Clinical variability even among affected members of the same family is observed in both the subacute juvenile and the late-onset TSD phenotypes.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/11713">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_61440"><div><strong>Pelizaeus-Merzbacher disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>61440</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.">C0205711</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">PLP1 disorders of central nervous system myelin formation include a range of phenotypes from Pelizaeus-Merzbacher disease (PMD) to spastic paraplegia 2 (SPG2). PMD typically manifests in infancy or early childhood with nystagmus, hypotonia, and cognitive impairment; the findings progress to severe spasticity and ataxia. Life span is shortened. SPG2 manifests as spastic paraparesis with or without CNS involvement and usually normal life span. Intrafamilial variation of phenotypes can be observed, but the signs are usually fairly consistent within families. Heterozygous females may manifest mild-to-moderate signs of the disease.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/61440">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_116020"><div><strong>Pick disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>116020</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.">C0236642</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Pick disease refers to the neuropathologic finding of 'Pick bodies,' which are argyrophilic, intraneuronal inclusions, and 'Pick cells,' which are enlarged neurons. The clinical correlates of Pick disease of brain include those of frontotemporal dementia, which encompass the behavioral variant of FTD, semantic dementia, and progressive nonfluent aphasia (summary by Piguet et al., 2011).&#13; Kertesz (2003) suggested the term 'Pick complex' to represent the overlapping syndromes of FTD, primary progressive aphasia (PPA), corticobasal degeneration (CBD), progressive supranuclear palsy (601104), and FTD with motor neuron disease. He noted that frontotemporal dementia may also be referred to as 'clinical Pick disease,' and that the term 'Pick disease' should be restricted to the pathologic finding of Pick bodies.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/116020">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_78657"><div><strong>Tay-Sachs disease, variant AB</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78657</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.">C0268275</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Acute infantile GM2 activator deficiency is a neurodegenerative disorder in which infants, who are generally normal at birth, have progressive weakness and slowing of developmental progress between ages four and 12 months. An ensuing developmental plateau is followed by progressively rapid developmental regression. By the second year of life decerebrate posturing, difficulty in swallowing, and worsening seizures lead to an unresponsive vegetative state. Death usually occurs between ages two and three years.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/78657">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_78692"><div><strong>Deficiency of hydroxymethylglutaryl-CoA lyase</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78692</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.">C0268601</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">3-Hydroxy-3-methylglutaryl-CoA lyase deficiency (HMGCLD) is a rare autosomal recessive disorder with the cardinal manifestations of metabolic acidosis without ketonuria, hypoglycemia, and a characteristic pattern of elevated urinary organic acid metabolites, including 3-hydroxy-3-methylglutaric, 3-methylglutaric, and 3-hydroxyisovaleric acids. Urinary levels of 3-methylcrotonylglycine may be increased. Dicarboxylic aciduria, hepatomegaly, and hyperammonemia may also be observed. Presenting clinical signs include irritability, lethargy, coma, and vomiting (summary by Gibson et al., 1988).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/78692">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_78724"><div><strong>Alexander disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>78724</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."><span class="highlight" style="background-color:">C0270726</span></a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Alexander disease, a progressive disorder of cerebral white matter caused by a heterozygous GFAP pathogenic variant, comprises a continuous clinical spectrum most recognizable in infants and children and a range of nonspecific neurologic manifestations in adults. This chapter discusses the spectrum of Alexander disease as four forms: neonatal, infantile, juvenile, and adult. The neonatal form begins in the first 30 days after birth with neurologic findings (e.g., hypotonia, hyperexcitability, myoclonus) and/or gastrointestinal manifestations (e.g., gastroesophageal reflux, vomiting, failure to thrive), followed by severe developmental delay and regression, seizures, megalencephaly, and typically death within two years. The infantile form is characterized by variable developmental issues: initially some have delayed or plateauing of acquisition of new skills, followed in some by a loss of gross and fine motor skills and language during in the first decade or in others a slow disease course that spans decades. Seizures, often triggered by illness, may be less frequent/severe than in the neonatal form. The juvenile form typically presents in childhood or adolescence with clinical and imaging features that overlap with the other forms. Manifestations in early childhood are milder than those in the infantile form (e.g., mild language delay may be the only developmental abnormality or, with language acquisition, hypophonia or nasal speech may alter the voice, often prior to appearance of other neurologic features). Vomiting and failure to thrive as well as scoliosis and autonomic dysfunction are common. The adult form is typically characterized by bulbar or pseudobulbar findings (palatal myoclonus, dysphagia, dysphonia, dysarthria or slurred speech), motor/gait abnormalities with pyramidal tract signs (spasticity, hyperreflexia, positive Babinski sign), or cerebellar abnormalities (ataxia, nystagmus, or dysmetria). Others may have hemiparesis or hemiplegia with a relapsing/remitting course or slowly progressive quadriparesis or quadriplegia. Other neurologic features can include sleep apnea, diplopia or disorders of extraocular motility, and autonomic dysfunction.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/78724">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_83266"><div><strong>Frontotemporal dementia</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>83266</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.">C0338451</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">In general, frontotemporal dementia (FTD) refers to a clinical manifestation of the pathologic finding of frontotemporal lobar degeneration (FTLD). FTD, the most common subtype of FTLD, is a behavioral variant characterized by changes in social and personal conduct with loss of volition, executive dysfunction, loss of abstract thought, and decreased speech output. A second clinical subtype of FTLD is 'semantic dementia,' characterized by specific loss of comprehension of language and impaired facial and object recognition. A third clinical subtype of FTLD is 'primary progressive aphasia' (PPA), characterized by a reduction in speech production, speech errors, and word retrieval difficulties resulting in mutism and an inability to communicate. All subtypes have relative preservation of memory, at least in the early stages. FTLD is often associated with parkinsonism or motor neuron disease (MND) resembling amyotrophic lateral sclerosis (ALS; 105400) (reviews by Tolnay and Probst, 2002 and Mackenzie and Rademakers, 2007). Mackenzie et al. (2009, 2010) provided a classification of FTLD subtypes according to the neuropathologic findings (see PATHOGENESIS below).&#13; Clinical Variability of Tauopathies&#13; Tauopathies comprise a clinically variable group of neurodegenerative diseases characterized neuropathologically by accumulation of abnormal MAPT-positive inclusions in nerve and/or glial cells. In addition to frontotemporal dementia, semantic dementia, and PPA, different clinical syndromes with overlapping features have been described, leading to confusion in the terminology (Tolnay and Probst, 2002). Other terms used historically include parkinsonism and dementia with pallidopontonigral degeneration (PPND) (Wszolek et al., 1992); disinhibition-dementia-parkinsonism-amyotrophy complex (DDPAC) (Lynch et al., 1994); frontotemporal dementia with parkinsonism (FLDEM) (Yamaoka et al., 1996); and multiple system tauopathy with presenile dementia (MSTD) (Spillantini et al., 1997). These disorders are characterized by variable degrees of frontal lobe dementia, parkinsonism, motor neuron disease, and amyotrophy.&#13; Other neurodegenerative disorders associated with mutations in the MAPT gene include Pick disease (172700) and progressive supranuclear palsy (PSP; 601104).&#13; Inherited neurodegenerative tauopathies linked to chromosome 17 and caused by mutation in the MAPT gene have also collectively been termed 'FTDP17' (Lee et al., 2001).&#13; Kertesz (2003) suggested the term 'Pick complex' to represent the overlapping syndromes of FTD, primary progressive aphasia (PPA), corticobasal degeneration (CBD), PSP, and FTD with motor neuron disease. He noted that frontotemporal dementia may also be referred to as 'clinical Pick disease' and that the term 'Pick disease' should be restricted to the pathologic finding of Pick bodies.&#13; Genetic Heterogeneity of Frontotemporal Lobar Degeneration&#13; Mutations in several different genes can cause frontotemporal dementia and frontotemporal lobar degeneration, with or without motor neuron disease. See FTD2 (607485), caused by mutation in the GRN gene (138945) on chromosome 17q21; FTDALS7 (600795), caused by mutation in the CHMP2B gene (609512) on chromosome 3p11; inclusion body myopathy with Paget disease and FTD (IBMPFD; 167320), caused by mutation in the VCP gene (601023) on chromosome 9p13; ALS6 (608030), caused by mutation in the FUS gene (137070) on 16p11; ALS10 (612069), caused by mutation in the TARDBP gene (605078) on 1p36; and FTDALS1 (105550), caused by mutation in the C9ORF72 gene (614260) on 9p21.&#13; In 1 family with FTD, a mutation was identified in the presenilin-1 gene (PSEN1; 104311) on chromosome 14, which is usually associated with a familial form of early-onset Alzheimer disease (AD3; 607822).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/83266">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_98277"><div><strong>Chorea-acanthocytosis</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>98277</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.">C0393576</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">VPS13A disease, caused by VPS13A loss-of-function pathogenic variants, is characterized by a spectrum of movement disorders (chorea, dystonia, tics, sometimes parkinsonism); predominant orofacial choreic and dystonic movements and tics (with involuntary tongue protrusion on attempted swallowing, habitual tongue and lip biting resulting in self-mutilation, involuntary vocalizations); dysarthria and dysphagia; psychiatric, cognitive, and behavioral changes ("frontal lobe type"); seizures; and progressive neuromuscular involvement. Huntingtonism (triad of progressive movement disorder and cognitive and behavioral alterations) is a typical presentation. Phenotypic variability is considerable even within the same family, including for monozygotic twins. Mean age of onset is about 30 years. VPS13A disease runs a chronic progressive course and may lead to major disability within a few years. Some affected individuals are bedridden or wheelchair dependent by the third decade. Age at death ranges from 28 to 61 years; several instances of sudden unexplained death or death during epileptic seizures have been reported.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/98277">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_155837"><div><strong>Inherited Creutzfeldt-Jakob disease</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>155837</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.">C0751254</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Genetic prion disease generally manifests with cognitive difficulties, ataxia, and myoclonus (abrupt jerking movements of muscle groups and/or entire limbs). The order of appearance and/or predominance of these features and other associated neurologic and psychiatric findings vary. The three major phenotypes of genetic prion disease are genetic Creutzfeldt-Jakob disease (gCJD), fatal familial insomnia (FFI), and Gerstmann-Sträussler-Scheinker (GSS) syndrome. Although these phenotypes display overlapping clinical and pathologic features, recognition of these phenotypes can be useful when providing affected individuals and their families with information about the expected clinical course. The age at onset typically ranges from 50 to 60 years. The disease course ranges from a few months in gCJD and FFI to a few (up to 4, and in rare cases up to 10) years in GSS syndrome.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/155837">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_208639"><div><strong>Kleefstra syndrome 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>208639</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.">C0795833</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Kleefstra syndrome is characterized by intellectual disability, autistic-like features, childhood hypotonia, and distinctive facial features. The majority of individuals function in the moderate-to-severe spectrum of intellectual disability although a few individuals have mild delay and total IQ within low-normal range. While most have severe expressive speech delay with little speech development, general language development is usually at a higher level, making nonverbal communication possible. A complex pattern of other findings can also be observed; these include heart defects, renal/urologic defects, genital defects in males, severe respiratory infections, epilepsy / febrile seizures, psychiatric disorders, and extreme apathy or catatonic-like features after puberty.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/208639">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_318833"><div><strong>Frontotemporal dementia and/or amyotrophic lateral sclerosis 7</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>318833</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.">C1833296</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">CHMP2B frontotemporal dementia (CHMP2B-FTD) has been described in a single family from Denmark, in one individual with familial FTD from Belgium, and in one individual with FTD and no family history. It typically starts between ages 46 and 65 years with subtle personality changes and slowly progressive behavioral changes, dysexecutive syndrome, dyscalculia, and language disturbances. Disinhibition or loss of initiative is the most common presenting symptom. The disease progresses over a few years into profound dementia with extrapyramidal symptoms and mutism. Several individuals have developed an asymmetric akinetic rigid syndrome with arm and gait dystonia and pyramidal signs that may be related to treatment with neuroleptic drugs. Symptoms and disease course are highly variable. Disease duration may be as short as three years or longer than 20 years.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/318833">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_324446"><div><strong>Supranuclear palsy, progressive, 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>324446</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.">C1836148</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove nowrap">See: <a href="/medgen/324446">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_374996"><div><strong>Gaucher disease perinatal lethal</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>374996</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.">C1842704</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Gaucher disease (GD) encompasses a continuum of clinical findings from a perinatal-lethal disorder to an asymptomatic type. The characterization of three major clinical types (1, 2, and 3) and two clinical forms (perinatal-lethal and cardiovascular) is useful in determining prognosis and management. Cardiopulmonary complications have been described with all the clinical phenotypes, although varying in frequency and severity. Type 1 GD is characterized by the presence of clinical or radiographic evidence of bone disease (osteopenia, focal lytic or sclerotic lesions, and osteonecrosis), hepatosplenomegaly, anemia, thrombocytopenia, lung disease, and the absence of primary central nervous system disease. Type 2 GD is characterized by primary central nervous system disease with onset before age two years, limited psychomotor development, and a rapidly progressive course with death by age two to four years. Type 3 GD is characterized by primary central nervous system disease with childhood onset, a more slowly progressive course, and survival into the third or fourth decade. The perinatal-lethal form is associated with ichthyosiform or collodion skin abnormalities or with nonimmune hydrops fetalis. The cardiovascular form is characterized by calcification of the aortic and mitral valves, mild splenomegaly, corneal opacities, and supranuclear ophthalmoplegia.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/374996">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_375285"><div><strong>GRN-related frontotemporal lobar degeneration with Tdp43 inclusions</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375285</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.">C1843792</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The spectrum of GRN frontotemporal dementia (GRN-FTD) includes the behavioral variant (bvFTD), primary progressive aphasia (PPA; further subcategorized as progressive nonfluent aphasia [PNFA] and semantic dementia [SD]), and movement disorders with extrapyramidal features such as parkinsonism and corticobasal syndrome (CBS). A broad range of clinical features both within and between families is observed. The age of onset ranges from 35 to 87 years. Behavioral disturbances are the most common early feature, followed by progressive aphasia. Impairment in executive function manifests as loss of judgment and insight. In early stages, PPA often manifests as deficits in naming, word finding, or word comprehension. In late stages, affected individuals often become mute and lose their ability to communicate. Early findings of parkinsonism include rigidity, bradykinesia or akinesia (slowing or absence of movements), limb dystonia, apraxia (loss of ability to carry out learned purposeful movements), and disequilibrium. Late motor findings may include myoclonus, dysarthria, and dysphagia. Most affected individuals eventually lose the ability to walk. Disease duration is three to 12 years.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/375285">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_375311"><div><strong>Spinocerebellar ataxia type 21</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>375311</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.">C1843891</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Spinocerebellar ataxia-21 (SCA21) is an autosomal dominant neurologic disorder characterized by onset in the first decades of life of slowly progressive cerebellar ataxia, which is associated with cognitive impairment in most patients (summary by Delplanque et al., 2014).&#13; For a general discussion of autosomal dominant spinocerebellar ataxia, see SCA1 (164400).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/375311">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_376072"><div><strong>Alzheimer disease 4</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>376072</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.">C1847200</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Alzheimer's disease is a degenerative disease of the brain that causes dementia, which is a gradual loss of memory, judgment, and ability to function. This disorder usually appears in people older than age 65, but less common forms of the disease appear earlier in adulthood.\n\nMemory loss is the most common sign of Alzheimer's disease. Forgetfulness may be subtle at first, but the loss of memory worsens over time until it interferes with most aspects of daily living. Even in familiar settings, a person with Alzheimer's disease may get lost or become confused. Routine tasks such as preparing meals, doing laundry, and performing other household chores can be challenging. Additionally, it may become difficult to recognize people and name objects. Affected people increasingly require help with dressing, eating, and personal care.\n\nAs the disorder progresses, some people with Alzheimer's disease experience personality and behavioral changes and have trouble interacting in a socially appropriate manner. Other common symptoms include agitation, restlessness, withdrawal, and loss of language skills. People with Alzheimer's disease usually require total care during the advanced stages of the disease.\n\nIndividuals with Alzheimer's disease usually survive 8 to 10 years after the appearance of symptoms, but the course of the disease can range from 1 to 25 years. Survival is usually shorter in individuals diagnosed after age 80 than in those diagnosed at a younger age. In Alzheimer's disease, death usually results from pneumonia, malnutrition, or general body wasting (inanition).\n\nAlzheimer's disease can be classified as early-onset or late-onset. The signs and symptoms of the early-onset form appear between a person's thirties and mid-sixties, while the late-onset form appears during or after a person's mid-sixties. The early-onset form of Alzheimer's disease is much less common than the late-onset form, accounting for less than 10 percent of all cases of Alzheimer's disease.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/376072">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_341120"><div><strong>Huntington disease-like 2</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>341120</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.">C1847987</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Huntington disease-like 2 (HDL2) typically presents in midlife with a relentless progressive triad of movement, emotional, and cognitive abnormalities which lead to death within ten to 20 years. HDL2 cannot be differentiated from Huntington disease clinically. Neurologic abnormalities include chorea, hypokinesia (rigidity, bradykinesia), dysarthria, and hyperreflexia in the later stages of the disease. There is a strong correlation between the duration of the disease and the progression of the motor and cognitive disorder.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/341120">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_355842"><div><strong>Fatal mitochondrial disease due to combined oxidative phosphorylation defect type 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>355842</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.">C1864840</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Combined oxidative phosphorylation deficiency type 3 is an extremely rare clinically heterogenous disorder described in about 5 patients to date. Clinical signs included hypotonia, lactic acidosis, and hepatic insufficiency, with progressive encephalomyopathy or hypertrophic cardiomyopathy.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/355842">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_401097"><div><strong>Hereditary spastic paraplegia 4</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>401097</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.">C1866855</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Spastic paraplegia 4 (SPG4; also known as SPAST-HSP) is characterized by insidiously progressive bilateral lower-limb gait spasticity. More than 50% of affected individuals have some weakness in the legs and impaired vibration sense at the ankles. Sphincter disturbances are very common. Onset is insidious, mostly in young adulthood, although symptoms may start as early as age one year and as late as age 76 years. Intrafamilial variation is considerable.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/401097">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_357007"><div><strong>Perry syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>357007</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.">C1868594</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The spectrum of DCTN1-related neurodegeneration includes Perry syndrome, distal hereditary motor neuronopathy type 7B (dHMN7B), frontotemporal dementia (FTD), motor neuron disease / amyotrophic lateral sclerosis (ALS), and progressive supranuclear palsy. Some individuals present with overlapping phenotypes (e.g., FTD-ALS, Perry syndrome-dHMN7B). Perry syndrome (the most common of the phenotypes associated with DCTN1) is characterized by parkinsonism, neuropsychiatric symptoms, hypoventilation, and weight loss. The mean age of onset in those with Perry syndrome is 49 years (range: 35-70 years), and the mean disease duration is five years (range: 2-14 years). In most affected persons, the reported cause/circumstance of death relates to sudden death/hypoventilation or suicide.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/357007">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_383137"><div><strong>Amyotrophic lateral sclerosis type 10</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>383137</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.">C2677565</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">In this GeneReview, TARDBP amyotrophic lateral sclerosis-frontotemporal dementia (TARDBP-ALS-FTD) refers to the spectrum of phenotypes caused by pathogenic variants in TARDBP, the gene encoding TDP-43. The phenotypic spectrum encompasses pure (i.e., without other neurologic findings) amyotrophic lateral sclerosis (ALS; most common), pure (i.e., without other neurologic findings) frontotemporal dementia (FTD; rare), a combination of ALS and FTD, and atypical neurologic phenotypes (very rare). Individuals with the same TARDBP pathogenic variant (even within the same family) may have clinical features that vary in both type and severity. Common manifestations are dysarthria and dysphagia; less common manifestations can include parkinsonism, cognitive deterioration, and behavioral and psychological manifestations of dementia. Life expectancy for TARDBP-ALS is highly variable and mainly associated with an individual's clinical features; overall disease duration averages three to five years. For TARDBP-FTD, disease duration averages one to 16 years.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/383137">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_481515"><div><strong>Hereditary sensory neuropathy-deafness-dementia syndrome</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>481515</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.">C3279885</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">DNMT1-related disorder is a degenerative disorder of the central and peripheral nervous systems comprising a phenotypic spectrum that includes hereditary sensory and autonomic neuropathy type 1E (HSAN1E) and autosomal dominant cerebellar ataxia, deafness, and narcolepsy (ADCA-DN). DNMT1 disorder is often characterized by moderate-to-severe sensorineural hearing loss beginning in the teens or early 20s, sensory impairment, sudomotor dysfunction (loss of sweating), and dementia usually beginning in the mid-40s. In some affected individuals, narcolepsy/cataplexy syndrome and ataxia are predominant findings.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/481515">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_815975"><div><strong>Basal ganglia calcification, idiopathic, 5</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>815975</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.">C3809645</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Primary familial brain calcification (PFBC) is a neurodegenerative disorder with characteristic calcium deposits in the basal ganglia and other brain areas visualized on neuroimaging. Most affected individuals are in good health during childhood and young adulthood and typically present in the fourth to fifth decade with a gradually progressive movement disorder and neuropsychiatric symptoms. The movement disorder first manifests as clumsiness, fatigability, unsteady gait, slow or slurred speech, dysphagia, involuntary movements, or muscle cramping. Neuropsychiatric symptoms, often the first or most prominent manifestations, range from mild difficulty with concentration and memory to changes in personality and/or behavior, to psychosis and dementia. Seizures of various types occur frequently, some individuals experience chronic headache and vertigo; urinary urgency or incontinence may be present.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/815975">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_896607"><div><strong>Autosomal recessive early-onset Parkinson disease 23</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>896607</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.">C4225186</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Parkinson disease-23 (PARK23) is a progressive neurodegenerative disorder characterized by young-adult onset of parkinsonism associated with progressive cognitive impairment leading to dementia and dysautonomia. Some individuals have additional motor abnormalities. Affected individuals become severely disabled within a few decades (summary by Lesage et al., 2016).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/896607">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_902979"><div><strong>Frontotemporal dementia and/or amyotrophic lateral sclerosis 4</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>902979</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.">C4225325</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Frontotemporal dementia and/or amyotrophic lateral sclerosis-4 is an autosomal dominant neurodegenerative disorder characterized by adult or late adult onset of cognitive impairment, behavioral abnormalities, and speech apraxia and/or upper and lower motor neuron signs. The phenotype is highly variable (summary by Freischmidt et al., 2015).&#13; For a discussion of genetic heterogeneity of FTDALS, see FTDALS1 (105550).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/902979">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_897127"><div><strong>Frontotemporal dementia and/or amyotrophic lateral sclerosis 3</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>897127</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.">C4225326</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Frontotemporal dementia and/or amyotrophic lateral sclerosis-3 is an autosomal dominant neurodegenerative disorder characterized by adult or late adult onset of cognitive impairment, behavioral abnormalities, and speech apraxia and/or upper and lower motor neuron signs. Some patients may also develop Paget disease of bone. The phenotype is highly variable, even within families (summary by Rea et al., 2014).&#13; For a discussion of genetic heterogeneity of FTDALS, see FTDALS1 (105550).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/897127">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1640811"><div><strong>Supranuclear palsy, progressive, 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1640811</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.">C4551863</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">The spectrum of clinical manifestations of MAPT-related frontotemporal dementia (MAPT-FTD) has expanded from its original description of frontotemporal dementia and parkinsonian manifestations to include changes in behavior, motor function, memory, and/or language. A recent retrospective study suggested that the majority of affected individuals have either behavioral changes consistent with a diagnosis of behavioral variant FTD (bvFTD) or, less commonly, a parkinsonian syndrome (i.e., progressive supranuclear palsy, corticobasal syndrome, or Parkinson disease). Fewer than 5% of people with MAPT-FTD have primary progressive aphasia or Alzheimer disease. Clinical presentation may differ between and within families with the same MAPT variant. MAPT-FTD is a progressive disorder that commonly ends with a relatively global dementia in which some affected individuals become mute. Progression of motor impairment in affected individuals results in some becoming chairbound and others bedbound. Mean disease duration is 9.3 (SD: 6.4) years but is individually variable and can be more than 30 years in some instances.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1640811">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1672866"><div><strong>Spinocerebellar ataxia, autosomal recessive 27</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1672866</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.">C5193058</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Autosomal recessive spinocerebellar ataxia-27 (SCAR27) is an adult-onset neurologic disorder characterized by gait difficulties and other cerebellar signs, such as eye movement abnormalities, dysarthria, and difficulty writing. The disorder is progressive, and some patients may lose independent ambulation. Additional features include spasticity of the lower limbs and cognitive impairment. Brain imaging shows cerebellar atrophy (summary by Eidhof et al., 2018).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1672866">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1748867"><div><strong>Cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1748867</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.">C5399977</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Mitochondrial complex IV deficiency nuclear type 2 (MC4DN2) is an autosomal recessive multisystem metabolic disorder characterized by the onset of symptoms at birth or in the first weeks or months of life. Affected individuals have severe hypotonia, often associated with feeding difficulties and respiratory insufficiency necessitating tube feeding and mechanical ventilation. The vast majority of patients develop hypertrophic cardiomyopathy in the first days or weeks of life, which usually leads to death in infancy or early childhood. Patients also show neurologic abnormalities, including developmental delay, nystagmus, fasciculations, dystonia, EEG changes, and brain imaging abnormalities compatible with a diagnosis of Leigh syndrome (see 256000). There may also be evidence of systemic involvement with hepatomegaly and myopathy, although neurogenic muscle atrophy is more common and may resemble spinal muscular atrophy type I (SMA1; 253300). Serum lactate is increased, and laboratory studies show decreased mitochondrial complex IV protein and activity levels in various tissues, including heart and skeletal muscle. Most patients die in infancy of cardiorespiratory failure (summary by Papadopoulou et al., 1999).&#13; For a discussion of genetic heterogeneity of mitochondrial complex IV (cytochrome c oxidase) deficiency, see 220110.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1748867">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1830423"><div><strong>Frontotemporal dementia and/or amyotrophic lateral sclerosis 1</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1830423</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.">C5779877</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">C9orf72 frontotemporal dementia and/or amyotrophic lateral sclerosis (C9orf72-FTD/ALS) is characterized most often by frontotemporal dementia (FTD) and upper and lower motor neuron disease (MND); however, atypical presentations also occur. Age at onset is usually between 50 and 64 years (range: 20-91 years) irrespective of the presenting manifestations, which may be pure FTD, pure amyotrophic lateral sclerosis (ALS), or a combination of the two phenotypes. The clinical presentation is highly heterogeneous and may differ between and within families, causing an unpredictable pattern and age of onset of clinical manifestations. The presence of MND correlates with an earlier age of onset and a worse overall prognosis.</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1830423">Condition Record</a></div></div>
<div class="divPopper rprt" id="rdis_1845781"><div><strong>Combined oxidative phosphorylation deficiency 59</strong><div class="aux"><div class="resc"><dl class="rprtid"><dt>MedGen UID: </dt><dd>1845781</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.">C5882730</a></dd><dt><span class="dotprefix"></span></dt><dd>Disease or Syndrome</dd></dl></div></div></div>
<div class="spaceAbove">Combined oxidative phosphorylation deficiency-59 (COXPD59) may present as a lethal infantile form of Leigh syndrome (see 256000) or as a milder disorder with hypertrophic cardiomyopathy, lactic acidosis, attention deficit-hyperactivity disorder (ADHD) and survival into adulthood (summary by Amarasekera et al., 2023).&#13; For a discussion of genetic heterogeneity of combined oxidative phosphorylation deficiency, see COXPD1 (609060).</div>
<div class="spaceAbove nowrap">See: <a href="/medgen/1845781">Condition Record</a></div></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_78724" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Alexander disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_376072" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Alzheimer disease 4</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_383137" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Amyotrophic lateral sclerosis type 10</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_896607" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Autosomal recessive early-onset Parkinson disease 23</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_815975" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Basal ganglia calcification, idiopathic, 5</a></div><div class="jig-moreless" data-jigconfig="class: 'moveDown', moreText: 'See full list (31)', lessText: 'Show less', nodeBefore: 0"><span id="clinMore">
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1748867" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Cardioencephalomyopathy, fatal infantile, due to cytochrome c oxidase deficiency 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_98277" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Chorea-acanthocytosis</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1845781" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Combined oxidative phosphorylation deficiency 59</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_78692" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Deficiency of hydroxymethylglutaryl-CoA lyase</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_355842" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Fatal mitochondrial disease due to combined oxidative phosphorylation defect type 3</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_83266" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontotemporal dementia</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1830423" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontotemporal dementia and/or amyotrophic lateral sclerosis 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_897127" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontotemporal dementia and/or amyotrophic lateral sclerosis 3</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_902979" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontotemporal dementia and/or amyotrophic lateral sclerosis 4</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_318833" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Frontotemporal dementia and/or amyotrophic lateral sclerosis 7</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_374996" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Gaucher disease perinatal lethal</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_375285" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">GRN-related frontotemporal lobar degeneration with Tdp43 inclusions</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_481515" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hereditary sensory neuropathy-deafness-dementia syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_401097" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Hereditary spastic paraplegia 4</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_341120" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Huntington disease-like 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_155837" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Inherited Creutzfeldt-Jakob disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_208639" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Kleefstra syndrome 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_61440" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pelizaeus-Merzbacher disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_357007" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Perry syndrome</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_116020" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Pick disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_375311" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Spinocerebellar ataxia type 21</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1672866" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Spinocerebellar ataxia, autosomal recessive 27</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_1640811" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Supranuclear palsy, progressive, 1</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_324446" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Supranuclear palsy, progressive, 2</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_11713" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tay-Sachs disease</a></div>
<div class="hangingIndent"><a title="click for more information" class="jig-ncbipopper" href="#rdis_78657" data-jigconfig="hasArrow: true, openEvent: 'click', closeEvent: 'mouseout', openAnimation: 'fadeIn', closeAnimation: 'fadeOut', triggerPosition: 'center right', destPosition: 'center left', arrowDirection: 'left'">Tay-Sachs disease, variant AB</a></div></span></div></div>
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<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/33523002">New Frontiers in the Prevention, Diagnosis, and Treatment of Alzheimer's Disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Guzman-Martinez L,
Calfío C,
Farias GA,
Vilches C,
Prieto R,
Maccioni RB</span><br />
<span class="medgenPMjournal">J Alzheimers Dis</span>
2021;82(s1):S51-S63.
doi: 10.3233/JAD-201059.
<span class="bold">PMID: </span><a href="/pubmed/33523002" target="_blank">33523002</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32907903">Diagnosis, treatment and management of apathy in Parkinson's disease: a scoping review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mele B,
Van S,
Holroyd-Leduc J,
Ismail Z,
Pringsheim T,
Goodarzi Z</span><br />
<span class="medgenPMjournal">BMJ Open</span>
2020 Sep 9;10(9):e037632.
doi: 10.1136/bmjopen-2020-037632.
<span class="bold">PMID: </span><a href="/pubmed/32907903" target="_blank">32907903</a><a href="/pmc/articles/PMC7482451" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/25731881">Assessment and management of behavioral and psychological symptoms of dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kales HC,
Gitlin LN,
Lyketsos CG</span><br />
<span class="medgenPMjournal">BMJ</span>
2015 Mar 2;350:h369.
doi: 10.1136/bmj.h369.
<span class="bold">PMID: </span><a href="/pubmed/25731881" target="_blank">25731881</a><a href="/pmc/articles/PMC4707529" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=(%22apathy%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 (234)</a></div></div>
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<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/36803086">Stroke in China.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Markus HS,
Leung T</span><br />
<span class="medgenPMjournal">Int J Stroke</span>
2023 Mar;18(3):256-258.
doi: 10.1177/17474930231157479.
<span class="bold">PMID: </span><a href="/pubmed/36803086" target="_blank">36803086</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35006557">Pharmacological Management of Apathy in Dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Azhar L,
Kusumo RW,
Marotta G,
Lanctôt KL,
Herrmann N</span><br />
<span class="medgenPMjournal">CNS Drugs</span>
2022 Feb;36(2):143-165.
Epub 2022 Jan 10
doi: 10.1007/s40263-021-00883-0.
<span class="bold">PMID: </span><a href="/pubmed/35006557" target="_blank">35006557</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31727229">Behavioral and psychological symptoms in Alzheimer's dementia and vascular dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Deardorff WJ,
Grossberg GT</span><br />
<span class="medgenPMjournal">Handb Clin Neurol</span>
2019;165:5-32.
doi: 10.1016/B978-0-444-64012-3.00002-2.
<span class="bold">PMID: </span><a href="/pubmed/31727229" target="_blank">31727229</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30783071">Improving Pleasure and Motivation in Schizophrenia: A Randomized Controlled Clinical Trial.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Favrod J,
Nguyen A,
Chaix J,
Pellet J,
Frobert L,
Fankhauser C,
Ismailaj A,
Brana A,
Tamic G,
Suter C,
Rexhaj S,
Golay P,
Bonsack C</span><br />
<span class="medgenPMjournal">Psychother Psychosom</span>
2019;88(2):84-95.
Epub 2019 Feb 18
doi: 10.1159/000496479.
<span class="bold">PMID: </span><a href="/pubmed/30783071" target="_blank">30783071</a><a href="/pmc/articles/PMC6518864" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/1754629">Reliability and validity of the Apathy Evaluation Scale.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Marin RS,
Biedrzycki RC,
Firinciogullari S</span><br />
<span class="medgenPMjournal">Psychiatry Res</span>
1991 Aug;38(2):143-62.
doi: 10.1016/0165-1781(91)90040-v.
<span class="bold">PMID: </span><a href="/pubmed/1754629" target="_blank">1754629</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%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 (2362)</a></div><h3 class="subhead">Diagnosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/33527880">Apathy after stroke: Diagnosis, mechanisms, consequences, and treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tay J,
Morris RG,
Markus HS</span><br />
<span class="medgenPMjournal">Int J Stroke</span>
2021 Jul;16(5):510-518.
Epub 2021 Feb 4
doi: 10.1177/1747493021990906.
<span class="bold">PMID: </span><a href="/pubmed/33527880" target="_blank">33527880</a><a href="/pmc/articles/PMC8267086" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32907903">Diagnosis, treatment and management of apathy in Parkinson's disease: a scoping review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mele B,
Van S,
Holroyd-Leduc J,
Ismail Z,
Pringsheim T,
Goodarzi Z</span><br />
<span class="medgenPMjournal">BMJ Open</span>
2020 Sep 9;10(9):e037632.
doi: 10.1136/bmjopen-2020-037632.
<span class="bold">PMID: </span><a href="/pubmed/32907903" target="_blank">32907903</a><a href="/pmc/articles/PMC7482451" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31727229">Behavioral and psychological symptoms in Alzheimer's dementia and vascular dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Deardorff WJ,
Grossberg GT</span><br />
<span class="medgenPMjournal">Handb Clin Neurol</span>
2019;165:5-32.
doi: 10.1016/B978-0-444-64012-3.00002-2.
<span class="bold">PMID: </span><a href="/pubmed/31727229" target="_blank">31727229</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30783071">Improving Pleasure and Motivation in Schizophrenia: A Randomized Controlled Clinical Trial.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Favrod J,
Nguyen A,
Chaix J,
Pellet J,
Frobert L,
Fankhauser C,
Ismailaj A,
Brana A,
Tamic G,
Suter C,
Rexhaj S,
Golay P,
Bonsack C</span><br />
<span class="medgenPMjournal">Psychother Psychosom</span>
2019;88(2):84-95.
Epub 2019 Feb 18
doi: 10.1159/000496479.
<span class="bold">PMID: </span><a href="/pubmed/30783071" target="_blank">30783071</a><a href="/pmc/articles/PMC6518864" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/28899013">The fatigue conundrum.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Kuppuswamy A</span><br />
<span class="medgenPMjournal">Brain</span>
2017 Aug 1;140(8):2240-2245.
doi: 10.1093/brain/awx153.
<span class="bold">PMID: </span><a href="/pubmed/28899013" target="_blank">28899013</a><a href="/pmc/articles/PMC5806506" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%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 (2108)</a></div><h3 class="subhead">Therapy</h3>
<div class="nl"><a target="_blank" href="/pubmed/35006557">Pharmacological Management of Apathy in Dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Azhar L,
Kusumo RW,
Marotta G,
Lanctôt KL,
Herrmann N</span><br />
<span class="medgenPMjournal">CNS Drugs</span>
2022 Feb;36(2):143-165.
Epub 2022 Jan 10
doi: 10.1007/s40263-021-00883-0.
<span class="bold">PMID: </span><a href="/pubmed/35006557" target="_blank">35006557</a></div>
<div class="nl"><a target="_blank" href="/pubmed/32907903">Diagnosis, treatment and management of apathy in Parkinson's disease: a scoping review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Mele B,
Van S,
Holroyd-Leduc J,
Ismail Z,
Pringsheim T,
Goodarzi Z</span><br />
<span class="medgenPMjournal">BMJ Open</span>
2020 Sep 9;10(9):e037632.
doi: 10.1136/bmjopen-2020-037632.
<span class="bold">PMID: </span><a href="/pubmed/32907903" target="_blank">32907903</a><a href="/pmc/articles/PMC7482451" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31727229">Behavioral and psychological symptoms in Alzheimer's dementia and vascular dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Deardorff WJ,
Grossberg GT</span><br />
<span class="medgenPMjournal">Handb Clin Neurol</span>
2019;165:5-32.
doi: 10.1016/B978-0-444-64012-3.00002-2.
<span class="bold">PMID: </span><a href="/pubmed/31727229" target="_blank">31727229</a></div>
<div class="nl"><a target="_blank" href="/pubmed/30336992">Behavioral Problems and Dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Volicer L</span><br />
<span class="medgenPMjournal">Clin Geriatr Med</span>
2018 Nov;34(4):637-651.
Epub 2018 Aug 24
doi: 10.1016/j.cger.2018.06.009.
<span class="bold">PMID: </span><a href="/pubmed/30336992" target="_blank">30336992</a></div>
<div class="nl"><a target="_blank" href="/pubmed/27508501">The Safety, Tolerability and Risks Associated with the Use of Newer Generation Antidepressant Drugs: A Critical Review of the Literature.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Carvalho AF,
Sharma MS,
Brunoni AR,
Vieta E,
Fava GA</span><br />
<span class="medgenPMjournal">Psychother Psychosom</span>
2016;85(5):270-88.
Epub 2016 Aug 11
doi: 10.1159/000447034.
<span class="bold">PMID: </span><a href="/pubmed/27508501" target="_blank">27508501</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%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 (1164)</a></div><h3 class="subhead">Prognosis</h3>
<div class="nl"><a target="_blank" href="/pubmed/37531702">Developing a machine learning model for detecting depression, anxiety, and apathy in older adults with mild cognitive impairment using speech and facial expressions: A cross-sectional observational study.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhou Y,
Han W,
Yao X,
Xue J,
Li Z,
Li Y</span><br />
<span class="medgenPMjournal">Int J Nurs Stud</span>
2023 Oct;146:104562.
Epub 2023 Jul 7
doi: 10.1016/j.ijnurstu.2023.104562.
<span class="bold">PMID: </span><a href="/pubmed/37531702" target="_blank">37531702</a></div>
<div class="nl"><a target="_blank" href="/pubmed/33527880">Apathy after stroke: Diagnosis, mechanisms, consequences, and treatment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tay J,
Morris RG,
Markus HS</span><br />
<span class="medgenPMjournal">Int J Stroke</span>
2021 Jul;16(5):510-518.
Epub 2021 Feb 4
doi: 10.1177/1747493021990906.
<span class="bold">PMID: </span><a href="/pubmed/33527880" target="_blank">33527880</a><a href="/pmc/articles/PMC8267086" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/31072403">Alzheimer's disease: risk factors and potentially protective measures.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Silva MVF,
Loures CMG,
Alves LCV,
de Souza LC,
Borges KBG,
Carvalho MDG</span><br />
<span class="medgenPMjournal">J Biomed Sci</span>
2019 May 9;26(1):33.
doi: 10.1186/s12929-019-0524-y.
<span class="bold">PMID: </span><a href="/pubmed/31072403" target="_blank">31072403</a><a href="/pmc/articles/PMC6507104" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26671151">White matter integrity and cognitive dysfunction: Radiological and neuropsychological correlations.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Tomimoto H</span><br />
<span class="medgenPMjournal">Geriatr Gerontol Int</span>
2015 Dec;15 Suppl 1:3-9.
doi: 10.1111/ggi.12661.
<span class="bold">PMID: </span><a href="/pubmed/26671151" target="_blank">26671151</a></div>
<div class="nl"><a target="_blank" href="/pubmed/1754629">Reliability and validity of the Apathy Evaluation Scale.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Marin RS,
Biedrzycki RC,
Firinciogullari S</span><br />
<span class="medgenPMjournal">Psychiatry Res</span>
1991 Aug;38(2):143-62.
doi: 10.1016/0165-1781(91)90040-v.
<span class="bold">PMID: </span><a href="/pubmed/1754629" target="_blank">1754629</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%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 (1209)</a></div><h3 class="subhead">Clinical prediction guides</h3>
<div class="nl"><a target="_blank" href="/pubmed/37531702">Developing a machine learning model for detecting depression, anxiety, and apathy in older adults with mild cognitive impairment using speech and facial expressions: A cross-sectional observational study.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Zhou Y,
Han W,
Yao X,
Xue J,
Li Z,
Li Y</span><br />
<span class="medgenPMjournal">Int J Nurs Stud</span>
2023 Oct;146:104562.
Epub 2023 Jul 7
doi: 10.1016/j.ijnurstu.2023.104562.
<span class="bold">PMID: </span><a href="/pubmed/37531702" target="_blank">37531702</a></div>
<div class="nl"><a target="_blank" href="/pubmed/36919891">Expert elicitation of risk factors for progression to dementia in individuals with mild cognitive impairment.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Wang M,
Sajobi TT,
Hogan DB,
Ganesh A,
Seitz DP,
Chekouo T,
Forkert ND,
Borrie MJ,
Camicioli R,
Hsiung GR,
Masellis M,
Moorhouse P,
Tartaglia MC,
Ismail Z,
Smith EE</span><br />
<span class="medgenPMjournal">Alzheimers Dement</span>
2023 Oct;19(10):4542-4548.
Epub 2023 Mar 15
doi: 10.1002/alz.12987.
<span class="bold">PMID: </span><a href="/pubmed/36919891" target="_blank">36919891</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26900735">Quantifying Poststroke Apathy With Actimeters.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Goldfine AM,
Dehbandi B,
Kennedy JM,
Sabot B,
Semper C,
Putrino D</span><br />
<span class="medgenPMjournal">J Neuropsychiatry Clin Neurosci</span>
2016 Summer;28(3):199-204.
Epub 2016 Feb 22
doi: 10.1176/appi.neuropsych.15090235.
<span class="bold">PMID: </span><a href="/pubmed/26900735" target="_blank">26900735</a><a href="/pmc/articles/PMC5327794" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/26391283">Measuring motivation in people with schizophrenia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Fervaha G,
Foussias G,
Takeuchi H,
Agid O,
Remington G</span><br />
<span class="medgenPMjournal">Schizophr Res</span>
2015 Dec;169(1-3):423-426.
Epub 2015 Sep 29
doi: 10.1016/j.schres.2015.09.012.
<span class="bold">PMID: </span><a href="/pubmed/26391283" target="_blank">26391283</a></div>
<div class="nl"><a target="_blank" href="/pubmed/7991117">The Neuropsychiatric Inventory: comprehensive assessment of psychopathology in dementia.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cummings JL,
Mega M,
Gray K,
Rosenberg-Thompson S,
Carusi DA,
Gornbein J</span><br />
<span class="medgenPMjournal">Neurology</span>
1994 Dec;44(12):2308-14.
doi: 10.1212/wnl.44.12.2308.
<span class="bold">PMID: </span><a href="/pubmed/7991117" target="_blank">7991117</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%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 (2381)</a></div></div>
</div>
<div class="portlet mgSection" id="ID_104">
<div class="portlet_head mgSectionHead ui-widget-header"><h1 class="nl" id="Recent_systematic_reviews">Recent systematic reviews</h1><a sid="104" href="#" class="portlet_shutter" title="Show/hide content"></a></div>
<div class="portlet_content ln">
<div class="nl"><a target="_blank" href="/pubmed/38640961">Guideline Recommendations on Behavioral and Psychological Symptoms of Dementia: A Systematic Review.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Watt JA,
Porter J,
Tavilsup P,
Chowdhury M,
Hatch S,
Ismail Z,
Kumar S,
Kirkham J,
Goodarzi Z,
Seitz D</span><br />
<span class="medgenPMjournal">J Am Med Dir Assoc</span>
2024 May;25(5):837-846.e21.
Epub 2024 Apr 17
doi: 10.1016/j.jamda.2024.03.007.
<span class="bold">PMID: </span><a href="/pubmed/38640961" target="_blank">38640961</a></div>
<div class="nl"><a target="_blank" href="/pubmed/37831709">Decision avoidance and post-decision regret: A systematic review and meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Han Q,
Quadflieg S,
Ludwig CJH</span><br />
<span class="medgenPMjournal">PLoS One</span>
2023;18(10):e0292857.
Epub 2023 Oct 13
doi: 10.1371/journal.pone.0292857.
<span class="bold">PMID: </span><a href="/pubmed/37831709" target="_blank">37831709</a><a href="/pmc/articles/PMC10575496" target="_blank" class="PubMedFree">Free PMC Article</a></div>
<div class="nl"><a target="_blank" href="/pubmed/36434931">The effectiveness of non-pharmacological interventions using information and communication technologies for behavioral and psychological symptoms of dementia: A systematic review and meta-analysis.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cho E,
Shin J,
Seok JW,
Lee H,
Lee KH,
Jang J,
Heo SJ,
Kang B</span><br />
<span class="medgenPMjournal">Int J Nurs Stud</span>
2023 Feb;138:104392.
Epub 2022 Nov 11
doi: 10.1016/j.ijnurstu.2022.104392.
<span class="bold">PMID: </span><a href="/pubmed/36434931" target="_blank">36434931</a></div>
<div class="nl"><a target="_blank" href="/pubmed/35750224">Prevalence and clinical aspects of depression in Parkinson's disease: A systematic review and metaanalysis of 129 studies.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Cong S,
Xiang C,
Zhang S,
Zhang T,
Wang H,
Cong S</span><br />
<span class="medgenPMjournal">Neurosci Biobehav Rev</span>
2022 Oct;141:104749.
Epub 2022 Jun 21
doi: 10.1016/j.neubiorev.2022.104749.
<span class="bold">PMID: </span><a href="/pubmed/35750224" target="_blank">35750224</a></div>
<div class="nl"><a target="_blank" href="/pubmed/17542011">Clinical diagnostic criteria for dementia associated with Parkinson's disease.</a></div>
<div class="portlet_content ln"><span class="medgenPMauthor">Emre M,
Aarsland D,
Brown R,
Burn DJ,
Duyckaerts C,
Mizuno Y,
Broe GA,
Cummings J,
Dickson DW,
Gauthier S,
Goldman J,
Goetz C,
Korczyn A,
Lees A,
Levy R,
Litvan I,
McKeith I,
Olanow W,
Poewe W,
Quinn N,
Sampaio C,
Tolosa E,
Dubois B</span><br />
<span class="medgenPMjournal">Mov Disord</span>
2007 Sep 15;22(12):1689-707; quiz 1837.
doi: 10.1002/mds.21507.
<span class="bold">PMID: </span><a href="/pubmed/17542011" target="_blank">17542011</a></div>
<div><a target="_blank" href="https://pubmed.ncbi.nlm.nih.gov/?term=%22Apathy%22%20AND%20systematic%5Bsb%5D%20AND%20%22english%20and%20humans%22%5Bfilter%5D%20NOT%20comment%5BPTYP%5D%20NOT%20letter%5BPTYP%5D" title="PubMed search">See all (158)</a></div></div>
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<div class="portlet_content ln"><ul><li><a href="/gtr/tests?term=C0085632%5bDISCUI%5d&amp;filter=method%3A2%5F8" target="_blank">Deletion/duplication analysis (6)</a></li>
<li><a href="/gtr/tests?term=C0085632%5bDISCUI%5d&amp;filter=method%3A2%5F7" target="_blank">Sequence analysis of the entire coding region (6)</a></li>
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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=(%22apathy%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><li><a target="_blank" href="/books/?term=((%22clinical%20guidelines%22%5BResource%20Type%5D)%20OR%20%22practice%20guideline%22%5BPublication%20Type%5D)%20AND%20(%22Apathy%22)">Bookshelf</a><div class="help-popup">See practice and clinical guidelines in NCBI Bookshelf. 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></div>
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