The hypothalamo-pituitary-thyroid (HPT) axis:: A target of nonpersistent ortho-substituted PCB congeners
The hypothalamo-pituitary-thyroid (HPT) axis:: A target of nonpersistent ortho-substituted PCB congeners
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DOI:
10.1093/toxsci/65.1.52
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发表时间:
2002-01-01
影响因子:
3.8
通讯作者:
Hansen, LG
中科院分区:
文献类型:
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作者:
Khan, MA;Lichtensteiger, CA;Hansen, LG
Coplanar polychlorinated biphenyls (PCBs) cause adverse effects in developing and adult animals. Less is known about the effects of nonplanar ortho-substituted PCBs. We investigated the effects of 2 nonplanar PCB congeners, 95 (2,3,6-2',5'-penta CB) or 101 (2,4,5-2',5'-penta CB), and estradiol on selected endocrine parameters. In Study 1, weanling female Sprague-Dawley (S-D) rats were given a single dose of PCB 95 ip at 4, 8, 16, and 32 mg/kg/day for 2 consecutive days and killed 24 h after the last dose. PCB 95 exposure caused a dose-dependent (p