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Feeding efficiency of Y1-R+/+ and Y1-R−/− mice. To analyze the rate of weight loss when food was restricted, Y1-R−/− (n = 6) and Y1-R+/+ (n = 10) mice at 6–8 weeks of age were fed an amount of CRF-1 powder equal to 5% of body weight. All values are means ± SE. A two-tailed unpaired Student’s t test was used for statistical analysis. ∗, P < 0.05.
