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Body length and representative images of adult mice following germline deletion of NPY (Npy−/−; A), Y1R (Y1R−/−; B), and Y2R (Y2R−/−; C). Body length in Npy−/− and Y1R−/− mice was comparable to the age-matched wild-type mice, whereas Y2R−/− mice were significantly shorter compared with age-matched wild-type littermates. Body length was measured from nose to rump as indicated by the double arrow line. Data are presented as mean ± SEM, N = 4–12, *p < 0.05.
