Reproductive and developmental toxicity screening of bisphenol F by oral gavage in rats

Abstract

Bisphenol F (BPF, 4,4′-methylenediphenol) has recently been selected as an alternative to bisphenol A (BPA), which is used in the manufacturing of polycarbonates and epoxy resins. This study aimed to investigate the general, and reproductive/developmental effects of BPF. Therefore, BPF at dose levels of 0, 1, 5, 20, and 100 mg/kg/day was administered daily by oral gavage to Sprague-Dawley rats during the pre-mating, mating, gestation, and early lactation periods, and reproductive and developmental toxicities including general systemic toxicities were investigated. A decrease in body weight and food consumption was observed in the female rats treated with BPF at 20 and 100 mg/kg/day during the pre-mating and gestation periods. Additionally, gamma glutamyl transpeptidase levels were increased in the female rats administered 100 mg/kg/day. At 100 mg/kg/day, ovarian weight decreased and vaginal mucification increased according to a necropsy and histopathological examination, respectively. Moreover, the number of implantation sites and litter size decreased at 100 mg/kg/day. However, no significant BPF-related changes were observed in the male rats. Based on the results of this study, the no-observed-adverse-effect levels (NOAELs) of BPF for general systemic and reproductive effects were 5 and 20 mg/kg/day, respectively.