Xenoendocrine pollutants may reduce size of sexual organs in East Greenland polar bears (Ursus maritimus).

作者: Christian Sonne , Pall S. Leifsson , Rune Dietz , Erik W. Born , Robert J. Letcher

DOI: 10.1021/ES060836N

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摘要: Reproductive organs from 55 male and 44 female East Greenland polar bears were examined to investigate the potential negative impact organohalogen pollutants (OHCs). Multiple regressions normalizing for age showed a significant inverse relationship between OHCs testis length baculum weight, respectively, was found in both subadults (dichlorodiphenyl trichloroethanes, dieldrin, chlordanes, hexacyclohexanes, polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs)) adults (hexachlorobenzene [HCB]) (all p < 0.05). Baculum bone mineral densities decreased with increasing DDTs, HCB adults, respectively In females, ovary ΣPCB (p = 0.03) ΣCHL 0.01), weight ΣPBDE 0.01) uterine horn 0.02). The study suggests that there is an xenoendocrine on size of Eas...

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