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Low-dose growth hormone treatment combined with diet restriction decreases insulin resistance by reducing visceral fat and increasing muscle mass in obese type 2 diabetic patients

Authors
 S Y Nam  ;  K R Kim  ;  B S Cha  ;  Y D Song  ;  S K Lim  ;  H C Lee  ;  K B Huh 
Citation
 INTERNATIONAL JOURNAL OF OBESITY, Vol.25(8) : 1101-1107, 2001 
Journal Title
 INTERNATIONAL JOURNAL OF OBESITY 
ISSN
 0307-0565 
Issue Date
2001
MeSH
Adipose Tissue/metabolism* ; Adult ; Blood Glucose/metabolism ; Body Composition/drug effects* ; Diabetes Mellitus/metabolism ; Diabetes Mellitus/therapy* ; Diabetes Mellitus, Type 2/metabolism ; Diabetes Mellitus, Type 2/therapy* ; Diet, Reducing* ; Female ; Glucose Clamp Technique ; Glucose Tolerance Test ; Growth Hormone/therapeutic use* ; Humans ; Insulin Resistance ; Lipids/blood ; Male ; Middle Aged ; Muscle, Skeletal/metabolism ; Obesity*
Keywords
growth hormone ; visceral fat ; insulin resistance ; type 2 diabetes mellitus
Abstract
OBJECTIVE: To evaluate the effects of low-dose growth hormone (GH) therapy combined with diet restriction on changes in body composition and the consequent change in insulin resistance in newly-diagnosed obese type 2 diabetic patients. DESIGN: Double-blind and placebo-controlled trial of 25-kcal/kg IBW diet daily with GH (n=9; rhGH, 0.15 IU/kg body weight/week) or placebo (n=9) for 12 weeks. SUBJECTS: Eighteen newly-diagnosed obese type 2 diabetic patients (age 42--56 y, body mass index 28.1+/-2.7 kg/m(2)). MEASUREMENTS: Body composition and fat distribution parameters (by bioelectrical impedance analyzer and CT scans), serum IGF-1; serum glucose, insulin and free fatty acid (FFA) during oral glucose tolerance test (OGTT); HbA(1c); serum lipid profiles; and glucose disposal rate (GDR) by euglycemic hyperinsulinemic clamp at baseline and after treatment. RESULTS: The fraction of body weight lost as fat lost was significantly greater (0.98+/-0.39 vs 0.52+/-0.32 kg/kg, P<0.05) and visceral fat area was decreased more in the GH-treated group compared to the placebo-treated group (27.9 vs 21.6%, P<0.05). Lean body mass and muscle area were reduced in the placebo-treated group, whereas an increase in both was observed in the GH-treated group. GDR the was significantly increased in only the GH-treated group (4.67+/-1.05 vs 6.95+/-0.91 mg/kg/min, P<0.05). The GH-induced increase in GDR was positively correlated with the decrease in the ratio of visceral fat area/muscle area (r=0.588, P=0.001). Serum glucose levels and insulin- and FFA-area under the curve during OGTT and HbA(1c) were significantly decreased after GH treatment. LDL-cholesterol level was decreased in only the GH-treated group. CONCLUSION: Low-dose GH treatment combined with dietary restriction resulted not only in a decrease of visceral fat but also in an increase of muscle mass with a consequent improvement of the insulin resistance observed in obese type 2 diabetic patients.
Full Text
http://www.nature.com/ijo/journal/v25/n8/full/0801636a.html
DOI
10.1038/sj.ijo.0801636
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Cha, Bong Soo(차봉수) ORCID logo https://orcid.org/0000-0003-0542-2854
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/143078
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