Tributyltin causes obesity and hepatic steatosis in male mice

Authors

  • Zhenghong Zuo,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Shuzhen Chen,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Tian Wu,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Jiliang Zhang,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Ying Su,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Yixin Chen,

    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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  • Chonggang Wang

    Corresponding author
    1. Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
    2. State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, People's Republic of China
    • Key Laboratory of Ministry of Education for Subtropical Wetland Ecosystem Research, School of Life Sciences, Xiamen University, Xiamen 361005, People's Republic of China
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Abstract

Organotin compounds such as tributyltin (TBT) have been used worldwide in agriculture and industry as biocides, heat stabilizers, and chemical catalysts. However, few studies addressing the effects of TBT on growth and metabolism have been reported. This study was conducted to investigate the effects of TBT at low doses (0.5, 5, and 50 μg/kg) on body weight gain in male mice exposed as from puberty and to determine the alterations in related hormones. The results showed that exposure to TBT for 45 days resulted in an increase in body weight gain and hepatic steatosis accompanied with hyperinsulinemia and hyperleptinemia. Reduction of hepatic adiponectin levels in a dose-dependent manner was related to the lipid increase in the liver. These results suggest that chronic and repeat exposure to low doses of TBT can result in obesity and hepatic steatosis and induce the occurrence of insulin and leptin resistance. © 2009 Wiley Periodicals, Inc. Environ Toxicol 26: 79–85, 2011.

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