Intraveneous (iv) PYY 3-36 infusions have been reported to reduce energy intake (EI) in humans, whereas few studies exist on effects of PYY 1-36.The aim of the present study was to examine effects of subcutaneous (sc) injections of PYY 1-36 and PYY 3-36 on appetite, ad libitum EI, plasma concentrations of PYY and free fatty acids (FFA) in obese males.

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