Krysiak R, Kedzia A, Okopień B
[Somatopause: the present state-of-art] [English Abstract, Journal Article]
Wiad Lek 2009; 62(1):52-61.
Somatopause is defined as the decline in the biological activity of the growth hormone (GH)-insulin-growth factor-I (IGF-I) axis that occurs gradually in both sexes from young adulthood throughout life. Somatopause is postulated to contribute to human aging because aging-related changes in body composition, bone structure, physical performance, cardiovascular system functions, and increased morbidity and mortality resemble the clinical picture and complications of adult growth hormone deficiency. However, animal and some epidemiological studies failed to show that low production of GH and IGF-I is detrimental to survival and health quality. Moreover, despite clear benefits of GH and its secretagogues in patients with GH deficiency, clinical studies assessing the effects of their administration to otherwise healthy older persons have provided conflicting results. The purpose of this article is to review the present state of knowledge on the age-related changes in the GH-IGF-I axis activity and to discuss pros and cons of the use of GH and GH secretagogues in older subjects.
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