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Proteomic analysis of brain proteins of rats exposed to high fluoride and low iodine

  • Inorganic Compounds
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Abstract

Epidemiological investigations reveal that high fluoride and low iodine have strong adverse effects on the intelligence quotient (IQ) of children. Studies also report that in some high fluoride areas, iodine deficiency also exists, especially in China. Here, with the proteomic techniques, we first report on the proteomic changes in brain proteins in offspring rats at postnatal day 20 exposed to high fluoride and/or low iodine. To investigate molecular mechanisms of central neural system injury induced by the above two elements, proteins were isolated and profiled by two-dimensional gel electrophoresis (2DE). By the analysis of Image-Master 2D Elite software, 71 protein spots in 2DE gels of treatment groups were gained and up- or down-regulated by two folds, and 5 proteins were regulated by five folds, with the comparison to the control group. The proteins changed by five folds were identified by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). The identified proteins are mainly related with cellular signaling, energy metabolism, and protein metabolism and provide a valuable clue to explore the mechanism underlining the neurotoxicity of high fluoride and low iodine. Moreover, these results could provide potential biomarkers for hazards caused by excessive fluoride and low iodine.

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Acknowledgments

This research was sponsored by the China National Natural Science Foundation (Grant No. 30871899 and 30671545), the Program for Ministry of Agriculture (Grant No. 2009-Z47), the Shanxi Province Science and Technology Bureau Program (Grant No. 20090311036), and the Shanxi Province Natural Science Foundation (Grant No. 2009021035-1).

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Authors and Affiliations

  1. Shanxi Key Lab of Environ-Veterinary Medicine, Shanxi Agricultural University, 030801, Taigu, Shanxi, People’s Republic of China

    Yaming Ge, Ruiyan Niu, Jianhai Zhang & Jundong Wang

  2. College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, 48 Xiyuan Road, 471003, Xinxiang, Luoyang, Henan, People’s Republic of China

    Yaming Ge

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  1. Yaming Ge
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  2. Ruiyan Niu
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  4. Jundong Wang
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Correspondence to Jundong Wang.

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Ge, Y., Niu, R., Zhang, J. et al. Proteomic analysis of brain proteins of rats exposed to high fluoride and low iodine. Arch Toxicol 85, 27–33 (2011). https://doi.org/10.1007/s00204-010-0537-5

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  • DOI: https://doi.org/10.1007/s00204-010-0537-5

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