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  • Title: The antagonistic effect of bisphenol A and nonylphenol on liver and kidney injury in rats.
    Author: Shi R, Liu Z, Liu T.
    Journal: Immunopharmacol Immunotoxicol; 2021 Oct; 43(5):527-535. PubMed ID: 34282716.
    Abstract:
    OBJECTIVE: Bisphenol A (BPA) and nonylphenol (NP) are widely distributed endocrine-disrupting compounds. We aimed to estimate the combined toxicity of BPA and NP at a clinically safe dose (100 μg/kg) in rats. MATERIALS AND METHODS: Liver and kidney functions were evaluated by detecting the relevant indicators. Hematoxylin and Eosin (HE) staining was performed to examine the injury in the tissue. TUNEL assay and Western blot were used to detect cell apoptosis and expressions of target factors, respectively. RESULTS: The body weight of rats in the BPA + NP group was lighter than that in the BPA or NP group. BPA or NP weakened liver function through increasing levels of aspartate aminotransferase (AST), alkaline phosphatase (ALP), alanine aminotransferase (ALT), cholesterol (CHOL), triglyceride TG, globulin (GLOB), treponemiapallidum (TP), and total bilirubin (TBIL). BPA and NP could induce kidney damage by elevating the levels of serum creatinine (Scr) and blood urea nitrogen (BUN). Moreover, the malondialdehyde (MDA) content was increased, whereas the activities of superoxide dismutase (SOD), glutathione (GSH), glutathione peroxidase (GSH-PX), glutathione sulfotransferase (GSH-ST), catalase (CAT), and peroxidase (POD) were reduced in those groups exposed to BPA or NP. HE staining exhibited injuries of the liver and kidney. Furthermore, the apoptosis of liver and kidney cells was enhanced by exposure to BPA or NP. Additionally, the expressions of CYP2D6, CYP1A1, and CYP2E1 were triggered by the treatment of BPA or NP. The combined effect of BPA and NP seemed to be antagonistic at a low dose. CONCLUSION: BPA and NP may have potential interactions.
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