Huang, Qiansheng published the artcileNew insights into the metabolism and toxicity of bisphenol A on marine fish under long-term exposure, Quality Control of 267244-08-6, the publication is Environmental Pollution (Oxford, United Kingdom) (2018), 242(Part_A), 914-921, database is CAplus and MEDLINE.
Bisphenol A (BPA) exposure receives great ecotoxicol. concern. However, gaps in knowledge, such as metabolism of BPA and inconsistent reports on reproductive toxicity, still exist. In this study, a marine fish model (Oryzias melastigma) was exposed to serial concentrations of BPA throughout its whole life cycle. The level of BPA-glucuronide (BPAG) dramatically increased throughout the embryonic stage since 4 dpf. Accordingly, the mRNA level and enzymic activity of UDP-glucuronosyltransferases (UGTs) increased across the embryonic stage. The mRNA level of UGT2 subtype rather than UGT1 or UGT5 showed a concentration dependent response to BPA exposure. BPA exposure led to the morphol. disruption of the chorion and villi as shown by SEM; however, the hatchability was not significantly influenced after exposure. Newly hatching larvae were continuously exposed to BPA for 120 days. Lower mRNA levels of hormone metabolism-related genes, decreased ratio of E2/T, slower ovary development and decreased egg production confirmed the inhibitory effect of BPA on reproduction Overall, our results showed the conjugation of BPA into BPAG by UGT2 at the embryonic stage and convinced the reproductive toxicity from multiple levels after whole life exposure to BPA.
Environmental Pollution (Oxford, United Kingdom) published new progress about 267244-08-6. 267244-08-6 belongs to tetrahydropyran, auxiliary class Tetrahydropyran,Chiral,Carboxylic acid,Benzene,Phenol,Alcohol,Ether,, name is (2S,3S,4S,5R,6S)-3,4,5-Trihydroxy-6-(4-(2-(4-hydroxyphenyl)propan-2-yl)phenoxy)tetrahydro-2H-pyran-2-carboxylic acid, and the molecular formula is C21H24O8, Quality Control of 267244-08-6.
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https://en.wikipedia.org/wiki/Tetrahydropyran,
Tetrahydropyran – an overview | ScienceDirect Topics