ArticleGenes2025
Acute Exposure to a Common Organic UV Filter Does Not Alter the mRNA of Gonadal Estrogen or Growth Hormone Receptors in Mozambique Tilapia (
Article in Genes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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5 authors.
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Abstract
BACKGROUND/
objectivesOrganic UV filters are chemical compounds that are commonly used in sunscreen products to absorb UV radiation from the Sun. To date, the filters have been detected in aquatic environments worldwide, as well as in aquatic organisms, including fish and coral. Hydroxy-4-methoxybenzophenone (BP-3) is a common organic UV filter and it is well documented to be among the filters that are detectable worldwide in water samples and aquatic organisms. Long-term exposure in vivo studies have demonstrated that high doses of BP-3 can cause endocrine-disrupting effects in aquatic organisms.
methodsUsing gonadal cell culture and quantitative RT-PCR, our study aimed to ascertain the effect of environmentally relevant doses of BP-3 (detected in aquatic systems) on the gene expression of reproductive targets, estrogen and growth hormone receptors (ERs and GHRs), in Mozambique tilapia ( RESULTS/
conclusionsOur study is the first to use an in vitro design to investigate the mechanism of the action of BP-3 on gonadal tissue in fish. Our results show that BP-3 does not induce gene regulation directly on the gonads of tilapia at doses that are comparable to what is detectable in aquatic environments after 24 h. We do verify, as seen in other teleost species, homologous regulation of ERβ in male tilapia gonadal tissue.
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