Journal
MOLECULAR AND CELLULAR ENDOCRINOLOGY
Volume 299, Issue 1, Pages 64-71Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2008.07.001
Keywords
Growth hormone; IGF-1; Stress resistance; Aging
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There is a growing body of literature focusing on the somatotropic axis and regulation of aging and type animals with normal plasma hormone concentrations. This information, along with that found in longevity. Many of these reports derive data from multiple endocrine mutants, those that exhibit both elevated growth hormone (GH) and insulin-like growth factor I (IGF-1) or deficiencies in one or both of these hormones. In general, both spontaneous and genetically engineered GH and IGF-1 deficiencies have lead to small body size, delayed development of sexual maturation and age-related pathology, and life span extension. In contrast, characteristics of high circulating GH included larger body sizes, early puberty and reproductive senescence, increased cancer incidence and reduced life span when compared to wildtype other species, implicates this anabolic pathway as the major regulator of longevity in animals. (C) 2008 Published by Elsevier Ireland Ltd.
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