Abstract

Normal aging is often accompanied by a gradual decline in various physiological functions, which in some people results in physical impairments, and may lead to disabilities which worsen the quality of life and limit independence. Normal aging is also frequently associated with reduced circulating levels of GH, IGF-I, and sex steroids; decreased muscle mass and strength; and increased total and intra-abdominal fat. Treatment with recombinant human GH or sex steroids can improve body composition in some older persons, yet the effects of such hormonal treatment (singly or in combination) on various physiological functions remain to be defined. We hypothesized that age-related decreases in GH, IGF-I and sex steroids separately and interactively contribute to diminished skeletal muscle mass and strength, increased total and abdominal body fat, and reduced aerobic capacity in elderly women and men; and restitution of normal GH, IGF-I and sex steroid status by combined hormone therapy would exert additive or synergistic effects to increase muscle mass and strength, decrease total and intra-abdominal fat, and increase aerobic capacity.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR002719-15
Application #
6309405
Study Section
Project Start
1999-12-01
Project End
2000-11-30
Budget Start
Budget End
Support Year
15
Fiscal Year
2000
Total Cost
Indirect Cost

  Institution

Name
Johns Hopkins University
Department
Type
DUNS #
045911138
City
Baltimore
State
MD
Country
United States
Zip Code
21218

  Publications

Unick, Jessica L; Gaussoin, Sarah A; Hill, James O et al. (2017) Objectively Assessed Physical Activity and Weight Loss Maintenance among Individuals Enrolled in a Lifestyle Intervention. Obesity (Silver Spring) 25:1903-1909
Li, Tianjing; Wieland, L Susan; Oh, Esther et al. (2017) Design considerations of a randomized controlled trial of sedation level during hip fracture repair surgery: a strategy to reduce the incidence of postoperative delirium in elderly patients. Clin Trials 14:299-307
Sammut, Amanda; Shea, Steven; Blumenthal, Roger S et al. (2017) Albuminuria in Rheumatoid Arthritis: Associations With Rheumatoid Arthritis Characteristics and Subclinical Atherosclerosis. Arthritis Care Res (Hoboken) 69:1799-1808
Baker, Joshua F; Giles, Jon T; Weber, David et al. (2017) Assessment of muscle mass relative to fat mass and associations with physical functioning in rheumatoid arthritis. Rheumatology (Oxford) 56:981-988
Johnson, Karen C; Bray, George A; Cheskin, Lawrence J et al. (2017) The Effect of Intentional Weight Loss on Fracture Risk in Persons With Diabetes: Results From the Look AHEAD Randomized Clinical Trial. J Bone Miner Res 32:2278-2287
Chao, Ariana M; Wadden, Thomas A; Gorin, Amy A et al. (2017) Binge Eating and Weight Loss Outcomes in Individuals with Type 2 Diabetes: 4-Year Results from the Look AHEAD Study. Obesity (Silver Spring) 25:1830-1837
Park, H-W; Tse, S; Yang, W et al. (2017) A genetic factor associated with low final bone mineral density in children after a long-term glucocorticoids treatment. Pharmacogenomics J 17:180-185
Zhang, Ping; Hire, Don; Espeland, Mark A et al. (2016) Impact of intensive lifestyle intervention on preference-based quality of life in type 2 diabetes: Results from the Look AHEAD trial. Obesity (Silver Spring) 24:856-64
McGinley, Brian M; Kirkness, Jason P; Schneider, Hartmut et al. (2016) Utilizing inspiratory airflows during standard polysomnography to assess pharyngeal function in children during sleep. Pediatr Pulmonol 51:431-8
Pownall, Henry J; Schwartz, Anne V; Bray, George A et al. (2016) Changes in regional body composition over 8 years in a randomized lifestyle trial: The look AHEAD study. Obesity (Silver Spring) 24:1899-905

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