Body weights (A), plasma lipid concentrations (B and C) in wild-type (left panel) and CCK-1R(-/-) female mice (right panel) at 6 and 12 months of age. Parameters are not different with respect to diet or genotype. †, significantly higher than the respective values at 6 months of age. Values are means ± SE. The results of statistical analyses are shown in the text. The numbers of animals are shown in Table 2. Ref, the value was referred from the record of the animal laboratory of our institute; NT, not tested in the present study.