Age changes in plasma IGF-1 concentration in free-ranging Japanese macaques (Macaca fuscata).
To obtain fundamental data on the endocrine background for the wild Japanese macaque (Macaca fuscata) growth profiles, we have measured plasma insulin-like growth factor 1 (IGF-1) concentrations of free-ranging and open-enclosed Japanese macaques from five different regions in their habitat. General features of the IGF-1 levels in those troops were: 1) an age-dependent increase in the young macaques and 2) distinctively higher values among several adult females. The age changes in IGF-1 levels during the adolescent period in the free-ranging Japanese macaques were similar to those in the caged Japanese macaques.
Suzuki
J
J
Primate Research Institute, Kyoto University, Inuyama, Aichis, Japan. suzuki@pri.kyoto-u.ac.jp
Ishida
T
T
D000375:Aging / Q000502:physiology*; D000818:Animals; D000830:Animals, Laboratory; D000835:Animals, Wild; D004777:Environment; D005260:Female; D007334:Insulin-Like Growth Factor I / Q000032:analysis*; D008251:Macaca / Q000502:physiology*; D008297:Male
D007334:Insulin-Like Growth Factor I