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<front>
<journal-meta>
<journal-id journal-id-type="publisher-id">Front. Genet.</journal-id>
<journal-title>Frontiers in Genetics</journal-title>
<abbrev-journal-title abbrev-type="pubmed">Front. Genet.</abbrev-journal-title>
<issn pub-type="epub">1664-8021</issn>
<publisher>
<publisher-name>Frontiers Media S.A.</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="publisher-id">1608524</article-id>
<article-id pub-id-type="doi">10.3389/fgene.2025.1608524</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Genetics</subject>
<subj-group>
<subject>Editorial</subject>
</subj-group>
</subj-group>
</article-categories>
<title-group>
<article-title>Editorial: Impact of heavy metal on aquatic life and human health</article-title>
<alt-title alt-title-type="left-running-head">El-Sappah et al.</alt-title>
<alt-title alt-title-type="right-running-head">
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fgene.2025.1608524">10.3389/fgene.2025.1608524</ext-link>
</alt-title>
</title-group>
<contrib-group>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>El-Sappah</surname>
<given-names>Ahmed H.</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="aff2">
<sup>2</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/795141/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/project-administration/"/>
<role content-type="https://credit.niso.org/contributor-roles/Writing - review &#x26; editing/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Abdel-Kader</surname>
<given-names>Heba H.</given-names>
</name>
<xref ref-type="aff" rid="aff3">
<sup>3</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1355668/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
<role content-type="https://credit.niso.org/contributor-roles/Writing - review &#x26; editing/"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Abbas</surname>
<given-names>Manzar</given-names>
</name>
<xref ref-type="aff" rid="aff4">
<sup>4</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/447580/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/Writing - review &#x26; editing/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Zafar</surname>
<given-names>Sara</given-names>
</name>
<xref ref-type="aff" rid="aff5">
<sup>5</sup>
</xref>
<uri xlink:href="https://loop.frontiersin.org/people/537733/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/Writing - review &#x26; editing/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Li</surname>
<given-names>Jia</given-names>
</name>
<xref ref-type="aff" rid="aff1">
<sup>1</sup>
</xref>
<xref ref-type="corresp" rid="c001">&#x2a;</xref>
<uri xlink:href="https://loop.frontiersin.org/people/1441050/overview"/>
<role content-type="https://credit.niso.org/contributor-roles/Writing - review &#x26; editing/"/>
<role content-type="https://credit.niso.org/contributor-roles/writing-original-draft/"/>
</contrib>
</contrib-group>
<aff id="aff1">
<sup>1</sup>
<institution>College of Agriculture, Forestry, and Food Engineering</institution>, <institution>Yibin University</institution>, <addr-line>Yibin</addr-line>, <addr-line>Sichuan</addr-line>, <country>China</country>
</aff>
<aff id="aff2">
<sup>2</sup>
<institution>Department of Genetics</institution>, <institution>Faculty of Agriculture</institution>, <institution>Zagazig University</institution>, <addr-line>Zagazig</addr-line>, <country>Egypt</country>
</aff>
<aff id="aff3">
<sup>3</sup>
<institution>Department of Fish Physiology, National Institute of Oceanography and Fisheries (NIOF)</institution>, <addr-line>Alexandria</addr-line>, <country>Egypt</country>
</aff>
<aff id="aff4">
<sup>4</sup>
<institution>Inner Mongolia Saikexing Institute of Breeding and Reproductive Biotechnology in Domestic Animal</institution>, <addr-line>Hohhot</addr-line>, <country>China</country>
</aff>
<aff id="aff5">
<sup>5</sup>
<institution>Botany Department</institution>, <institution>Government College University</institution>, <addr-line>Faisalabad</addr-line>, <addr-line>Punjab</addr-line>, <country>Pakistan</country>
</aff>
<author-notes>
<fn fn-type="edited-by">
<p>
<bold>Edited and reviewed by:</bold> <ext-link ext-link-type="uri" xlink:href="https://loop.frontiersin.org/people/25213/overview">Douglas Mark Ruden</ext-link>, Wayne State University, United States</p>
</fn>
<corresp id="c001">&#x2a;Correspondence: Ahmed H. El-Sappah, <email>ahmed_elsappah2006@yahoo.com</email>, <email>2020110009@yibinu.edu.cn</email>; Heba H. Abdel-Kader, <email>hebaelalkamy3232@gmail.com</email>; Jia Li, <email>jia.li16@aliyun.com</email>
</corresp>
</author-notes>
<pub-date pub-type="epub">
<day>23</day>
<month>04</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="collection">
<year>2025</year>
</pub-date>
<volume>16</volume>
<elocation-id>1608524</elocation-id>
<history>
<date date-type="received">
<day>09</day>
<month>04</month>
<year>2025</year>
</date>
<date date-type="accepted">
<day>14</day>
<month>04</month>
<year>2025</year>
</date>
</history>
<permissions>
<copyright-statement>Copyright &#xa9; 2025 El-Sappah, Abdel-Kader, Abbas, Zafar and Li.</copyright-statement>
<copyright-year>2025</copyright-year>
<copyright-holder>El-Sappah, Abdel-Kader, Abbas, Zafar and Li</copyright-holder>
<license xlink:href="http://creativecommons.org/licenses/by/4.0/">
<p>This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.</p>
</license>
</permissions>
<related-article id="RA1" related-article-type="commentary-article" journal-id="Front. Genet." xlink:href="https://www.frontiersin.org/research-topics/44597" ext-link-type="uri">Editorial on the Research Topic <article-title>Impact of heavy metal on aquatic life and human health</article-title>
</related-article>
<kwd-group>
<kwd>heavy metal</kwd>
<kwd>toxicity</kwd>
<kwd>ecosystem</kwd>
<kwd>genetic responses</kwd>
<kwd>antibiotics</kwd>
</kwd-group>
<custom-meta-wrap>
<custom-meta>
<meta-name>section-at-acceptance</meta-name>
<meta-value>Toxicogenomics</meta-value>
</custom-meta>
</custom-meta-wrap>
</article-meta>
</front>
<body>
<sec id="s1">
<title>Heavy metals in aquatic ecosystems: an escalating global concern</title>
<p>Heavy metals&#x2019; contamination of aquatic ecosystems is an ever-growing environmental and public health Research Topic. Heavy metals such as cadmium (Cd), arsenic (As), chromium (Cr), lead (Pb), and mercury (Hg) persist in the environment, accumulate in aquatic organisms, and biomagnify through the food chain, ultimately affecting human health (<xref ref-type="bibr" rid="B2">El-Sappah et al., 2017</xref>; <xref ref-type="bibr" rid="B1">El-Sappah et al., 2022</xref>). Industrialization, agriculture, and urbanization have accelerated the release of these toxic substances into marine and freshwater ecosystems.</p>
<p>This Research Topic seeks to consolidate studies examining heavy metals&#x2019; genetic, proteomic, physiological, and environmental effects on aquatic animals while enhancing understanding of their indirect implications for human health. This editorial consolidates the principal results of the papers in this Research Topic and emphasizes their cumulative impact on the field.</p>
</sec>
<sec id="s2">
<title>Genomic and proteomic insights into metal stress responses</title>
<p>Understanding organisms&#x2019; molecular and genetic responses to heavy metals is crucial for developing biomarkers and mitigation strategies. In this context:</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fgene.2022.1069068">Ebrahim et al.</ext-link> analyzed <italic>Grx4</italic>, <italic>Fep1</italic>, and <italic>Php4</italic> transcription factors in <italic>Schizosaccharomyces pombe</italic>, providing insights into iron homeostasis mechanisms and protein-protein interactions in metal sensing.</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fgene.2025.1538168">Ortega et al.</ext-link> provided a revised glutathione-S-transferase <italic>(GST)</italic> gene map in <italic>Tetrahymena thermophila</italic>, demonstrating stressor-specific gene expression patterns in response to cadmium and arsenic.</p>
<p>These researches underscore the significance of transcriptome and gene regulatory analysis in discerning adaptation mechanisms and possible biomarkers in aquatic creatures subjected to heavy metals.</p>
</sec>
<sec id="s3">
<title>Physiological and biochemical effects of metal exposure</title>
<p>In addition to genetic alterations, metal exposure causes significant physiological and metabolic disturbances:</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2024.1444061">Zhou et al.</ext-link> demonstrated that short-term depuration alleviates cadmium-induced oxidative stress in <italic>Meretrix meretrix</italic>.</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2024.1530807">Zeng et al.</ext-link> explored the dose-dependent interaction between iron toxicity and the antibiotic norfloxacin in <italic>Larimichthys crocea</italic>.</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2023.1195016">Ahmed et al.</ext-link> revealed shared stress pathways under salinity and metal exposure in common carp, primarily via immune and hormonal regulation.</p>
<p>These papers demonstrate how heavy metals disrupt physiological homeostasis and provide environmental and aquaculture management insights.</p>
</sec>
<sec id="s4">
<title>Environmental monitoring and risk assessment for human health</title>
<p>To safeguard public health, it is essential to evaluate the prevalence and hazards of heavy metals in aquatic ecosystems:</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2024.1521449">Tolga</ext-link>&#x2019;s research on Turkish wastewater effluents revealed carcinogenic hazards associated with chromium and nickel.</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2025.1557963">Zhang et al.</ext-link> demonstrated considerable arsenic deposition in fish from the South China Sea, presenting a concern to consumers.</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fmars.2024.1500870">Wang et al.</ext-link> correlated heavy metal-induced reactive oxygen species production in fish with human sick.</p>
<p>These articles enhance our subject by linking environmental pollution to ecological and human health hazards.</p>
</sec>
<sec id="s5">
<title>Expanding omics-based toxicology for environmental health</title>
<p>The use of high-throughput omics technology facilitates comprehensive investigations of metal-induced damage:</p>
<p>
<ext-link ext-link-type="uri" xlink:href="https://doi.org/10.3389/fgene.2024.1393665">Wang et al.</ext-link> used transcriptome and proteomic analyses to investigate phosgene-induced pulmonary damage, emphasizing similarities with processes of metal toxicity.</p>
<p>Collectively, these investigations endorse the ongoing use of integrated omics to comprehend the comprehensive impact of pollutants.</p>
</sec>
<sec id="s6">
<title>Conclusion: towards a unified strategy in aquatic toxicology and public health</title>
<p>This Research Topic highlights that heavy metals impact aquatic creatures at several levels, including gene expression, physiology, and ecosystem health, directly affecting human exposure and illness. Future research should prioritize long-term biomonitoring initiatives that include biomarkers across many species and ecosystems. Interdisciplinary methodologies integrating ecology, genetics, environmental chemistry, and public health. Science-informed policy-making to manage discharges and protect ecosystems.</p>
<p>We thank all authors and reviewers for their contributions to this significant compilation. We anticipate it will provide a basis for ongoing research and initiatives to address heavy metal contamination in aquatic ecosystems.</p>
</sec>
</body>
<back>
<sec sec-type="author-contributions" id="s7">
<title>Author contributions</title>
<p>AE-S: Project administration, Writing &#x2013; review and editing, Writing &#x2013; original draft. HA-K: Writing &#x2013; original draft, Writing &#x2013; review and editing. MA: Writing &#x2013; review and editing, Writing &#x2013; original draft. SZ: Writing &#x2013; review and editing, Writing &#x2013; original draft. JL: Writing &#x2013; review and editing, Writing &#x2013; original draft.</p>
</sec>
<sec sec-type="funding-information" id="s8">
<title>Funding</title>
<p>The author(s) declare that no financial support was received for the research and/or publication of this article.</p>
</sec>
<sec sec-type="COI-statement" id="s9">
<title>Conflict of interest</title>
<p>The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.</p>
</sec>
<sec sec-type="ai-statement" id="s10">
<title>Generative AI statement</title>
<p>The authors declare that no Generative AI was used in the creation of this manuscript.</p>
</sec>
<sec sec-type="disclaimer" id="s11">
<title>Publisher&#x2019;s note</title>
<p>All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.</p>
</sec>
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</article>