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Gamma-glutamyl transferase is associated with sarcopenia and sarcopenic obesity in community-dwelling older adults: results from the Fifth Korea National Health and Nutrition Examination Survey, 2010-2011.

Authors
 Namki Hong  ;  Eun Young Lee  ;  Chang Oh Kim 
Citation
 ENDOCRINE JOURNAL, Vol.62(7) : 585-592, 2015 
Journal Title
 ENDOCRINE JOURNAL 
ISSN
 0918-8959 
Issue Date
2015
MeSH
Aged ; Body Composition ; Body Mass Index ; Cross-Sectional Studies ; Female ; Humans ; Male ; Middle Aged ; Nutrition Surveys ; Obesity/blood* ; Obesity/complications ; Republic of Korea ; Sarcopenia/blood* ; Sarcopenia/complications ; Waist Circumference ; gamma-Glutamyltransferase/blood*
Keywords
Gamma-glutamyl transferase ; Sarcopenia ; Obesity ; Insulin resistance
Abstract
Although elevated serum gamma-glutamyl transferase activity (GGT) has been linked with metabolic risk factors for sarcopenia, including non-alcoholic fatty liver disease, adiposity, and insulin resistance, whether GGT independently associated with sarcopenia and sarcopenic obesity has not yet been investigated. We analyzed cross-sectional data of 3,193 community-dwelling adults (42.2% men, age 63.4 ± 8.7) aged ≥50 years from the Fifth Korean National Health and Nutrition Examination Survey, 2010-2011. Sarcopenia was defined as a calculated value of the appendicular skeletal muscle mass divided by body weight (ASM/Wt, %) <1 standard deviation below the sex-specific mean for healthy young adults. Sarcopenic obesity was defined as sarcopenia combined with a waist circumference ≥90 cm for men and ≥85 cm for women. The prevalence of sarcopenia and sarcopenic obesity increased stepwise from the lowest to highest GGT quintiles (sarcopenia, 20.2-39.7%; sarcopenic obesity, 7.5-27.3%; P for trend, <0.001). Serum GGT activity was associated negatively with ASM and positively with waist circumference. In multivariate logistic regression analyses, participants in the highest GGT quintile had a 2.3-fold increased risk of sarcopenia and 3.4-fold risk of sarcopenic obesity versus those in the lowest quintile, whereas each single-unit increase in natural log-GGT associated independently with a 35% increased risk of sarcopenia and 62% increased risk of sarcopenic obesity after adjusting for age, sex, body mass index, and other confounders. Elevated serum GGT activity was independently associated with sarcopenia and sarcopenic obesity in community-dwelling older adults.
Files in This Item:
T201503113.pdf Download
DOI
10.1507/endocrj.EJ15-0119
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Chang Oh(김창오) ORCID logo https://orcid.org/0000-0002-0773-5443
Hong, Nam Ki(홍남기) ORCID logo https://orcid.org/0000-0002-8246-1956
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/140957
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