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Effects of Growth Hormone Withdrawal in Obese Premenopausal Women.
MedLine Citation:
PMID:  23146135     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
OBJECTIVE: We previously reported improved body composition and cardiovascular risk markers plus a small decrease in glucose tolerance with GH administration vs. placebo for 6 months to abdominally obese premenopausal women. The objective of this study was to determine whether the effects of GH treatment on cardiovascular risk markers, body composition, and glucose tolerance in obese women persist 6 months after GH withdrawal. DESIGN AND PATIENTS: Fifty abdominally obese premenopausal women completed a trial of rhGH vs. placebo for 6 months; 39 women completed a subsequent 6-month withdrawal observation period. MEASUREMENTS: IGF-I, body composition by CT, (1) H-MRS and DXA, serum cardiovascular risk markers, oral glucose tolerance test (OGTT) RESULTS: IGF-I standard deviation scores (SDS) within the GH group were -1.7±0.1 (pretreatment), -0.1±0.3 (after 6 months of GH) and -1.7±0.1 (6 months post-GH withdrawal). Six months after GH withdrawal, total abdominal and subcutaneous adipose tissue, total fat, trunk fat, trunk/extremity fat, hsCRP, apoB, LDL, and tPA were higher than at the 6-month (GH discontinuation) timepoint (p≤0.05). All body composition and cardiovascular risk markers that had improved with GH returned to baseline levels by 6 months after GH discontinuation, as did fasting and 2-hour OGTT glucose levels. CONCLUSION: The effects of GH administration to abdominally obese premenopausal women have a short time-course. The beneficial effects on body composition and cardiovascular risk markers, and the side effect of altered glucose tolerance returned to pretreatment levels after GH withdrawal. There was no suppression of endogenous IGF-I levels, which returned to baseline after GH withdrawal. © 2012 Blackwell Publishing Ltd.
Authors:
E Lin; Ma Bredella; Av Gerweck; M Landa; D Schoenfeld; Al Utz; Kk Miller
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-12
Journal Detail:
Title:  Clinical endocrinology     Volume:  -     ISSN:  1365-2265     ISO Abbreviation:  Clin. Endocrinol. (Oxf)     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0346653     Medline TA:  Clin Endocrinol (Oxf)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 Blackwell Publishing Ltd.
Affiliation:
Neuroendocrine Unit, Massachusetts General Hospital, Boston, MA, 02114.
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