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MEDLINE, EMBASE, Cochrane Library and CINAHL were searched for relevant trials published from respective database inception dates to May 2009. Study selection, quality appraisal and data extraction were performed independently and in duplicate. Seventeen randomized trials, including a total of 1665 men, were identified, which differed in the populations studied and type, dosage and duration of antioxidants used. Only two-thirds of the studies (11/17) reported using allocation concealment and three studies (18%) used intention-to-treat analysis. Despite the methodological and clinical heterogeneity, 14 of the 17 (82%) trials showed an improvement in either sperm quality or pregnancy rate after antioxidant therapy. Ten trials examined pregnancy rate and six showed a significant improvement after antioxidant therapy. The use of oral antioxidants in infertile men could improve sperm quality and pregnancy rates. 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<div class="pre-content"><div><div class="bk_prnt"><p class="small">NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.</p><p>Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet]. York (UK): Centre for Reviews and Dissemination (UK); 1995-. </p></div><div class="iconblock clearfix whole_rhythm no_top_margin bk_noprnt"><a class="img_link icnblk_img" title="About" href="/books/n/dare/"><img class="source-thumb" src="/corehtml/pmc/pmcgifs/bookshelf/thumbs/th-dare-lrg.png" alt="Cover of Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews" height="100px" width="80px" /></a><div class="icnblk_cntnt eight_col"><h2>Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet].</h2><a data-jig="ncbitoggler" href="#__NBK80109_dtls__">Show details</a><div style="display:none" class="ui-widget" id="__NBK80109_dtls__"><div>York (UK): <a href="http://www.crd.york.ac.uk/CRDWeb/" ref="pagearea=page-banner&amp;targetsite=external&amp;targetcat=link&amp;targettype=publisher">Centre for Reviews and Dissemination (UK)</a>; 1995-.</div></div><div class="half_rhythm"></div><div class="bk_noprnt"><form method="get" action="/books/n/dare/" id="bk_srch"><div class="bk_search"><label for="bk_term" class="offscreen_noflow">Search term</label><input type="text" title="Search this book" id="bk_term" name="term" value="" data-jig="ncbiclearbutton" /> <input type="submit" class="jig-ncbibutton" value="Search this book" submit="false" style="padding: 0.1em 0.4em;" /></div></form></div></div></div></div></div>
<div class="main-content lit-style" itemscope="itemscope" itemtype="http://schema.org/CreativeWork"><div class="meta-content fm-sec"><h1 id="_NBK80109_"><span class="title" itemprop="name">A systematic review of the effect of oral antioxidants on male infertility</span></h1><p class="small">Review published: <span itemprop="datePublished">2010</span>.</p></div><div class="body-content whole_rhythm" itemprop="text"><p>Bibliographic details: Ross C, Morriss A, Khairy M, Khalaf Y, Braude P, Coomarasamy A, El-Toukhy T. &#x000a0;A systematic review of the effect of oral antioxidants on male infertility.&#x000a0;Reproductive BioMedicine Online&#x000a0;2010;&#x000a0;20(6):&#x000a0;711-723. [<a href="https://pubmed.ncbi.nlm.nih.gov/20378409" ref="pagearea=body&amp;targetsite=entrez&amp;targetcat=link&amp;targettype=pubmed">PubMed<span class="bk_prnt">: 20378409</span></a>]</p><div id="d12010007560_abs"><h2 id="_d12010007560_abs_">Abstract</h2><p>The use of antioxidants in treatment of infertile men has been suggested, although the evidence base for this practice is unclear. A systematic review of randomized studies was conducted to evaluate the effects of oral antioxidants (vitamins C and E, zinc, selenium, folate, carnitine and carotenoids) on sperm quality and pregnancy rate in infertile men. MEDLINE, EMBASE, Cochrane Library and CINAHL were searched for relevant trials published from respective database inception dates to May 2009. Study selection, quality appraisal and data extraction were performed independently and in duplicate. Seventeen randomized trials, including a total of 1665 men, were identified, which differed in the populations studied and type, dosage and duration of antioxidants used. Only two-thirds of the studies (11/17) reported using allocation concealment and three studies (18%) used intention-to-treat analysis. Despite the methodological and clinical heterogeneity, 14 of the 17 (82%) trials showed an improvement in either sperm quality or pregnancy rate after antioxidant therapy. Ten trials examined pregnancy rate and six showed a significant improvement after antioxidant therapy. The use of oral antioxidants in infertile men could improve sperm quality and pregnancy rates. Adequately powered robust trials of individual and combinations of antioxidants are needed to guide clinical practice.</p><p>2010. Published by Elsevier Ltd.</p></div></div></div>
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A systematic review of the effect of oral antioxidants on male infertility. 2010.<span class="bk_cite_avail"></span></div></div></li></ul></div></div><div class="portlet"><div class="portlet_head"><div class="portlet_title"><h3><span>Similar articles in PubMed</span></h3></div><a name="Shutter" sid="1" href="#" class="portlet_shutter" title="Show/hide content" remembercollapsed="true" pgsec_name="PBooksDiscovery_RA" id="Shutter"></a></div><div class="portlet_content"><ul><li class="brieflinkpopper two_line"><a class="brieflinkpopperctrl" href="/pubmed/35265037" ref="ordinalpos=1&amp;linkpos=1&amp;log$=relatedarticles&amp;logdbfrom=pubmed">The Effect of Antioxidants on Sperm Quality Parameters and Pregnancy Rates for Idiopathic Male Infertility: A Network Meta-Analysis of Randomized Controlled Trials.</a><span class="source">[Front Endocrinol (Lausanne). 2...]</span><div class="brieflinkpop offscreen_noflow">The Effect of Antioxidants on Sperm Quality Parameters and Pregnancy Rates for Idiopathic Male Infertility: A Network Meta-Analysis of Randomized Controlled Trials.<div class="brieflinkpopdesc"><em xmlns:np="http://ncbi.gov/portal/XSLT/namespace" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" class="author">Li KP, Yang XS, Wu T. </em><em xmlns:np="http://ncbi.gov/portal/XSLT/namespace" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" class="cit">Front Endocrinol (Lausanne). 2022; 13:810242. 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