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- W2046683256 abstract "Islet amyloid polypeptide (IAPP) is postulated to act as a hormonal signal from the pancreas to the brain to inhibit food intake and reduce adipose energy reserves. The present study compared the effects of chronic peripheral and chronic central administration of IAPP on food intake and meal pattern in rats. IAPP was administered subcutaneously (SC) for 7 days at doses of 0, 0.25, 2.5 and 25 pmol kg(-1) min(-1) using an osmotic minipump or administered centrally at doses of 0, 0.025, 0.25 and 2.5 pmol kg(-1) min(-1) using an osmotic minipump connected to an intracerebroventricular (ICV) catheter inserted into the third ventricle. Both SC and ICV infusion decreased total food intake dose-dependently. The minimal effective dose was 2.5 pmol IAPP kg(-1) min(-1) for SC administration and 0.25 pmol kg(-1) min(-1) for ICV infusion. The decrease in food intake produced by infusion of IAPP was mainly due to decreased meal size, although a significant decrease in meal number also occurred at the highest SC and ICV doses. SC administration produced a larger, more persistent decrease in food intake during the light period than in the dark period, while ICV infusion caused a larger, more persistent decrease during the dark period. The 10-fold difference in minimal effective doses indicates that ICV-administered IAPP acted primarily in the brain to inhibit food intake. The difference between the effects of IAPP on meal pattern with the two methods of administration suggests that IAPP does not act on the same target(s) when administered centrally as it does when it is administered peripherally." @default.
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- W2046683256 date "2007-07-01" @default.
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- W2046683256 title "Comparison of the effects of chronic central administration and chronic peripheral administration of islet amyloid polypeptide on food intake and meal pattern in the rat" @default.
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- W2046683256 doi "https://doi.org/10.1016/j.peptides.2007.06.011" @default.
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