The hypothalamus-pituitary-thyroid axis in teleosts and amphibians: Endocrine disruption and its consequences to natural populations

被引:154
作者
Carr, James A. [1 ]
Patino, Reynaldo [2 ,3 ,4 ]
机构
[1] Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA
[2] Texas Tech Univ, US Geol Survey, Texas Cooperat Fish & Wildlife Res Unit, Lubbock, TX 79409 USA
[3] Texas Tech Univ, Dept Nat Resources Management, Lubbock, TX 79409 USA
[4] Texas Tech Univ, Dept Biol Sci, Lubbock, TX 79409 USA
关键词
Thyroid; Pituitary; Hypothalamus; Reproduction; Development; Amphibians; Fishes; POLYBROMINATED DIPHENYL ETHERS; WASTE-WATER CONTAMINANTS; ENVIRONMENTALLY RELEVANT CONCENTRATIONS; SUCKER CATOSTOMUS-COMMERSONI; DEPENDENT GENE-EXPRESSION; NORTHERN LEOPARD FROG; HORMONE-BETA SUBUNIT; AFRICAN CLAWED FROG; XENOPUS-LAEVIS; RAINBOW-TROUT;
D O I
10.1016/j.ygcen.2010.06.001
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Teleosts and pond-breeding amphibians may be exposed to a wide variety of anthropogenic, waterborne contaminants that affect the hypothalamus-pituitary-thyroid (HPT) axis. Because thyroid hormone is required for their normal development and reproduction, the potential impact of HPT-disrupting contaminants on natural teleost and amphibian populations raises special concern. There is laboratory evidence indicating that persistent organic pollutants, heavy metals, pharmaceutical and personal care products, agricultural chemicals, and aerospace products may alter HPT activity, development, and reproduction in teleosts and amphibians. However, at present there is no evidence to clearly link contaminant-induced HPT alterations to impairments in teleost or amphibian population health in the field. Also, with the exception of perchlorate for which laboratory studies have shown a direct link between HPT disruption and adverse impacts on development and reproductive physiology, little is known about if or how other HPT-disrupting contaminants affect organismal performance. Future field studies should focus on establishing temporal associations between the presence of HPT-disrupting chemicals, the occurrence of HPT alterations, and adverse effects on development and reproduction in natural populations; as well as determining how complex mixtures of HPT contaminants affect organismal and population health. (C) 2010 Elsevier Inc. All rights reserved.
引用
收藏
页码:299 / 312
页数:14
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