Abstract
Abstract Decabromodiphenyl ether (BDE-209), a congener of polybrominated diphenyl ethers (PBDEs), is used as a flame retardant and accounts for over 82% of total PBDE usage. BDE-209 has been found to be persistent in indoor and outdoor environments and has adverse health effects on humans. This study aimed to investigate the effects of BDE-209 on mouse intestinal tissues and reveal the underlying toxicological mechanisms. In this study, C57BL/6J male mice were administered BDE-209 intragastrically (200 mg/kg bodyweight) once a day for 4 weeks, after which intestinal tissues, blood samples, and fecal samples were collected for analysis. The results showed that BDE-209 exposure significantly decreased body weight (P
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