Abstract Title:

Effects of Bisphenol A ongene expression and DNA damage in adult viviparous fish.

Abstract Source:

J Toxicol Environ Health A. 2020 Feb 1 ;83(3):95-112. Epub 2020 Feb 20. PMID: 32075523

Abstract Author(s):

Isabel Cervantes-Camacho, Sandra M Guerrero-Estévez, María Fernanda López, Ernesto Alarcón-Hernández, Eugenia López-López

Article Affiliation:

Isabel Cervantes-Camacho


Bisphenol A (BPA) is an emerging pollutant of global concern. Viviparous fishis endemic to the Central Mexican Plateau where BPA was detected; however, few studies examined the influence of this chemical on native viviparous fish. The effects of BPA (sublethal dose) were determined on DNA integrity andexpression ingonads, and interactions of BPA with FOXL2 protein. Genotoxicity analysis revealed that % comets, at 14 and 28 days and comet tail length (at 14 days) were significantly higher in exposed compared to controls. In general, the % DNA tail was not markedly higher in BPA-treated fish; however, tail moment related to tail length exhibited significant increases in DNA damage. RT-qPCR assays showedoverexpression after 14 and 28 days of exposure in females; while in males,was overexpressed after 28 days.analysis demonstrated that BPA interacted with seven residues located in FOXL2 homeodomain. In summary, sublethal BPA doses induced DNA damage and changes inexpression in gonadal cells of, which may adversely affect reproduction in BPA-exposed wild populations.overexpression and BPA-FOXL2 interaction suggested alterations in processes involving. Viviparous fish may thus serve as potential non-conventional models for assessing pollutants effects.

Study Type : Animal Study

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