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KMID : 0388120030120040294
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Journal of Korean Society for the Study of Obesity
2003 Volume.12 No. 4 p.294 ~ p.303
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Effect of Variants of the β-3 Adrenergic Receptor and the Leptin Receptor Gene on Weight Loss
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Suh Young-Sung
Kim Dae-Hyun
Lee In-Kyu
Lee Keun-Mi
Kim Young-Hoon
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Abstract
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Background: From a lot of cross-sectional studies, the relationship between obesity and variants of obesity related gene is inconsistent. In addition, some longitudinal studies showed different results, too. Therefore, we investigated the response of anthropometric data to 12 weeks weight loss program in obese patients with Trp64Arg variants in the β-3
adrenergic receptor and Gln223Arg variants in the leptin receptor gene.
Method: 81 adult obese subjects with BMI >27 kg/m2 were included for this study. They were recruited for weight management from 3 hospitals in Daegu and had taken orlistat for 4 week at least. Anthropometric measurements were weight, height, waist and hip circumference. The genotypes for both genes of study subjects were determined by
protocols.
Results: Subjects lost significantly more weight, waist circumference, and BMI than those of before study for 12 weeks (P<0.0001). Reductions in body weight, waist circumference, and BMI. There were not significantly different between Gln carriers and noncarriers of Gln223Arg variants in leptin receptor gene or Arg carriers and noncarriers of Trp64Arg variants in -3 adrenergic receptor gene (P>0.05). During the 12 weeks of treatment, 60.1% of patients in completer with Gln noncarriers of leptin receptor lost more than 5% of their initial body weight and, however, were not significantly different than 38.1% of those in completer with Gln carriers.
Conclusion: These results suggest that the presence of Gln223Arg variants in the leptin receptor and Trp64Arg variants in the -3 adrenergic receptor in subjects with orlistat may not be a hindrance or a help to reduce body weight.
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KEYWORD
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Leptin receptor gene, β-3 adrenergic receptor, Orlistat, Weight reduction
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