Human agin gis accompanied by a gradual decline in fat free mass. Although energy intake and expenditure tends to decline with age, body weight usually increases. It is also well documented that aging is associated with a decline in growth hormone levels. (GH) which may contribute to the changes in body composition and amino acid metabolism also described in the elderly. The purpose of this study is to describe anthropometry, growth hormone (GH) and insulin Like Growth Factor-1 (IGF-1) levels leucine kinetics, protein turnover (PT) and energy expenditure (REE) in healthy elderly men (n-46) and women (n-34). Age average was 71.3+4.4 years. Protein turnover (PT) was estimated from leucine kinetics, using a primed constant infusion of [1-13C] Leucine tracer.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000052-41
Application #
6590557
Study Section
Special Emphasis Panel (ZRR1)
Project Start
2001-12-01
Project End
2002-11-30
Budget Start
Budget End
Support Year
41
Fiscal Year
2002
Total Cost
Indirect Cost
Name
Johns Hopkins University
Department
Type
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218
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