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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Current Medicinal Chemistry</journal-id><journal-title-group><journal-title xml:lang="en">Current Medicinal Chemistry</journal-title><trans-title-group xml:lang="ru"><trans-title>Current Medicinal Chemistry</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0929-8673</issn><issn publication-format="electronic">1875-533X</issn><publisher><publisher-name xml:lang="en">Bentham Science</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">645149</article-id><article-id pub-id-type="doi">10.2174/0109298673259183231117073347</article-id><article-categories><subj-group subj-group-type="toc-heading"><subject>Anti-Infectives and Infectious Diseases</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Porphyrinuria in Autism Spectrum Disorder: A Review</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Bjørklund</surname><given-names>Geir</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name><surname>Semenova</surname><given-names>Yuliya</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name><surname>El-Ansary</surname><given-names>Afaf</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name><surname>Al-Ayadhi</surname><given-names>Laila</given-names></name><email>info@benthamscience.net</email><xref ref-type="aff" rid="aff4"/></contrib></contrib-group><aff id="aff1"><institution>Department of Research,, Council for Nutritional and Environmental Medicine</institution></aff><aff id="aff2"><institution>School of Medicine, Nazarbayev University</institution></aff><aff id="aff3"><institution>Autism Center, Lotus Holistic Alternative Medical Center</institution></aff><aff id="aff4"><institution>Department of Physiology, Faculty of Medicine, King Saud University</institution></aff><pub-date date-type="pub" iso-8601-date="2024-11-10" publication-format="electronic"><day>10</day><month>11</month><year>2024</year></pub-date><volume>31</volume><issue>42</issue><issue-title xml:lang="ru"/><fpage>6911</fpage><lpage>6925</lpage><history><date date-type="received" iso-8601-date="2025-01-07"><day>07</day><month>01</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Bentham Science Publishers</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Bentham Science Publishers</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.eco-vector.com/0929-8673/article/view/645149">https://journals.eco-vector.com/0929-8673/article/view/645149</self-uri><abstract xml:lang="en"><p id="idm46041443657280">:Numerous studies demonstrated that the number of children with autism spectrum disorder (ASD) has increased remarkably in the past decade. A portion of ASD etiology, however, is attributed to environmental issues and genetic disorders. We highlighted a scoping review to principally evaluate the current information on mercury exposure in ASD children and to reveal knowledge gaps. Elevated porphyrins concentration in the urinary system related to mercury exposure, such as precoproporphyrin (prcP), coproporphyrin (cP), and pentacarboxyporphyrin (5cxP), was shown in comparison with controls. Moreover, high levels of urinary porphyrins have been elevated in response to heavy metal exposure. The related pattern (increased prcP, cP, and 5cxP) with Hg exposure may be used as biomarkers in the characteristics of ASD symptoms. However, this review highlighted the data gaps because the control groups were not genderand age-matched for ASD children.</p></abstract><kwd-group xml:lang="en"><kwd>Autism spectrum disorder</kwd><kwd>mercury exposure</kwd><kwd>urinary porphyrins</kwd><kwd>genetics</kwd><kwd>environmental factors</kwd><kwd>biomarkers.</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Willsey, H.R.; Willsey, A.J.; Wang, B.; State, M.W. Genomics, convergent neuroscience and progress in understanding autism spectrum disorder. Nat. Rev. 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