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Effect of weight loss on circulating fatty acid profiles in overweight subjects with high visceral fat area: a 12-week randomized controlled trial

 Young Ju Lee  ;  Ayoung Lee  ;  Hye Jin Yoo  ;  Minjoo Kim  ;  Minkyung Kim  ;  Sun Ha Jee  ;  Dong Yeob Shin  ;  Jong Ho Lee 
 NUTRITION JOURNAL, Vol.17(1) : 28, 2018 
Journal Title
Issue Date
Fatty acid ; Fatty acid desaturase ; Obesity-related disease ; Visceral fat ; Weight loss
BACKGROUND: Significant associations between visceral fat and alterations in plasma fatty acids have been identified in overweight individuals. However, there are scant data regarding the relationships of the visceral fat area (VFA) with the plasma fatty acid profiles and desaturase activities following weight loss. We investigated the effect of weight loss with mild calorie restriction on the circulating fatty acid profiles and desaturase activities in nondiabetic overweight subjects with high VFA. METHODS: Eighty overweight subjects with high VFA (L4 VFA >/=100 cm(2)) were randomized into the 12-week mild-calorie-restriction (300 kcal/day) or control groups. RESULTS: Comparison of the percent of body weight changes between groups revealed that the weight-loss group had greater reductions in body weight. The VFA decreased by 17.7 cm(2) from baseline in the weight-loss group (P < 0.001). At follow-up, the weight-loss group showed greater reductions in serum triglycerides, insulin, and HOMA-IR than the control group. Significantly greater reductions in total saturated fatty acids, palmitic acid, stearic acid, total monounsaturated fatty acids, palmitoleic acid, oleic acid, eicosadienoic acid, and dihomo-gamma-linolenic acid levels were detected in the weight-loss group compared with the control group after adjusting for baseline values. Following weight loss, C16 Delta9-desaturase activity was significantly decreased and Delta5-desaturase activity was significantly increased, and the changes were greater in the weight-loss group than in the control group. CONCLUSIONS: The results suggest that mild weight loss improves abdominal obesity, overall fatty acid profiles, and desaturase activities; therefore, mild calorie restriction has potential health benefits related to obesity-related diseases in overweight subjects with high VFA. TRIAL REGISTRATION: NCT02992639. Retrospectively registered 11 December 2016.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
4. Graduate School of Public Health (보건대학원) > Graduate School of Public Health (보건대학원) > 1. Journal Papers
Yonsei Authors
Shin, Dong Yeob(신동엽) ORCID logo https://orcid.org/0000-0003-1048-7978
Jee, Sun Ha(지선하) ORCID logo https://orcid.org/0000-0001-9519-3068
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