2016 - ER stress-induced apoptosis in rat thyroid by F & I

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2016 - ER stress-induced apoptosis in rat thyroid by F & I

Postby pfpcnews » Sat Aug 13, 2016 5:25 am

Hongliang Liu, Changchun Hou, Qiang Zeng, Liang Zhao, Yushan Cui, Linyu Yu, Lingzhi Wang, Yang Zhao, Junyan Nie, Bin Zhang, Aiguo Wang - "Role of endoplasmic reticulum stress-induced apoptosis in rat thyroid toxicity caused by excess fluoride and/or iodide" Environmental Toxicology and Pharmacology 46:277-285 (2016)
http://www.sciencedirect.com/science/ar ... 8916302083

Excess fluoride and iodide coexist in drinking water in many regions, but few studies have investigated the single or interactive effects on thyroid in vivo. In our study, Wistar rats were exposed to excess fluoride and/or iodide through drinking water for 2 or 8 months. The structure and function of the thyroid, cells apoptosis and the expression of inositol-requiring enzyme 1 (IRE1) pathway-related factors were analyzed. Results demonstrated that excess fluoride and/or iodide could change thyroid follicular morphology and alter thyroid hormone levels in rats. After 8 months treatment, both single and co-exposure of the two microelements could raise the thyroid cells apoptosis. However, the expressions of IRE1-related factors were only increased in fluoride-alone and the combined groups. In conclusion, thyroid structure and thyroid function were both affected by excess fluoride and/or iodide. IRE1-induced apoptosis were involved in this cytotoxic process caused by fluoride or the combination of two microelements.
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