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Assessment of the Effects of Bisphenol A on Dopamine Synthesis and Blood Vessels in the Goldfish Brain.
- Source :
-
International journal of molecular sciences [Int J Mol Sci] 2019 Dec 09; Vol. 20 (24). Date of Electronic Publication: 2019 Dec 09. - Publication Year :
- 2019
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Abstract
- Bisphenol A (BPA) is an abundant contaminant found in aquatic environments. While a large number of toxicological studies have investigated the effects of BPA, the potential effects of BPA exposure on fish brain have rarely been studied. To understand how BPA impacts goldfish brains, we performed a transcriptome analysis of goldfish brains that had been exposed to 50 μg L <superscript>-1</superscript> and 0 μg L <superscript>-1</superscript> BPA for 30 days. In the analysis of unigene expression profiles, 327 unigenes were found to be upregulated and 153 unigenes were found to be downregulated in the BPA exposure group compared to the control group. Dopaminergic signaling pathway-related genes were significantly downregulated in the BPA exposure group. Furthermore, we found that serum dopamine concentrations decreased and TUNEL (terminal deoxynucleotidyl transferase 2-deoxyuridine, 5-triphosphate nick end labeling) staining was present in dopamine neurons enriched regions in the brain after BPA exposure, suggesting that BPA may disrupt dopaminergic processes. A KEGG analysis revealed that genes involved in the fluid shear stress and atherosclerosis pathway were highly significantly enriched. In addition, the qRT-PCR results for fluid shear stress and atherosclerosis pathway-related genes and the vascular histology of the brain showed that BPA exposure could damage blood vessels and induce brain atherosclerosis. The results of this work provide insights into the biological effects of BPA on dopamine synthesis and blood vessels in goldfish brain and could lay a foundation for future BPA neurotoxicity studies.
- Subjects :
- Animals
Dopaminergic Neurons metabolism
Dopaminergic Neurons pathology
Gene Expression Profiling
Benzhydryl Compounds toxicity
Brain blood supply
Brain pathology
Dopamine metabolism
Endocrine Disruptors toxicity
Goldfish metabolism
Intracranial Arteriosclerosis chemically induced
Intracranial Arteriosclerosis metabolism
Intracranial Arteriosclerosis pathology
Phenols toxicity
Water Pollutants, Chemical toxicity
Subjects
Details
- Language :
- English
- ISSN :
- 1422-0067
- Volume :
- 20
- Issue :
- 24
- Database :
- MEDLINE
- Journal :
- International journal of molecular sciences
- Publication Type :
- Academic Journal
- Accession number :
- 31835337
- Full Text :
- https://doi.org/10.3390/ijms20246206