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- W2003991723 abstract "Tributyltin (TBT) is a largely diffused environmental pollutant, banned from paints in the European Union from 2003. However, the level of TBT (and other organotins) in food, particularly fish and shellfish, remains still high. Several studies demonstrated that TBT is involved in the development of obesity, via peripheral action, but currently, there are only a few data illustrating effects of TBT on the nervous system. In the present study, we tested the hypothesis that acute exposure to TBT may directly activate brain cells in particular, in those hypothalamic nuclei regulating the food intake. To this purpose, TBT was orally administered at a single dose (10 mg/kg/body weight) to two groups of adult male mice: regularly fed or fasted for 24 h. Mice were sacrificed 90 min after the TBT administration and perfused by 4% paraformaldehyde. Brains were quickly dissected, frozen and sectioned for immunocytochemical detection of c-fos, a common marker of cell activation. In both, fed or fasted mice, exposure to TBT induced a significant increase of c-fos expression in the arcuate nucleus in comparison to control mice. The other nuclei involved in the control of feeding behavior did not show any significant increase. These data are the first in vivo demonstration that TBT has not only peripheral effects, but also may activate elements in the brain, in particular in a crucial region for the regulation of food intake like the arcuate nucleus." @default.
- W2003991723 created "2016-06-24" @default.
- W2003991723 creator A5012828262 @default.
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- W2003991723 date "2011-03-01" @default.
- W2003991723 modified "2023-09-27" @default.
- W2003991723 title "Acute exposure to tributyltin induces c-fos activation in the hypothalamic arcuate nucleus of adult male mice" @default.
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- W2003991723 doi "https://doi.org/10.1016/j.neuro.2010.12.011" @default.
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