Xiao-Wei Dai1,2, Yu-Ming Chen3,4, Fang-Fang Zeng1, Li-Li Sun1, Cao-Gang Chen5, Yi-Xiang Su6,7. 1. Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. 2. Nanshan Maternal and Child Health Hospital of Shenzhen, Shenzhen, 518052, People's Republic of China. 3. Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. chenyum@mail.sysu.edu.cn. 4. Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. chenyum@mail.sysu.edu.cn. 5. The Second Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. 6. Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. suyx@mail.sysu.edu.cn. 7. Department of Nutrition, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, People's Republic of China. suyx@mail.sysu.edu.cn.
Abstract
PURPOSE: Evidence of an association between n-3 polyunsaturated fatty acids (PUFAs) and metabolic syndrome (MS) is limited and inconsistent. We investigated the association between n-3 PUFAs in erythrocytes and the presence of MS in Chinese adults. METHODS: The levels of α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) in erythrocytes were measured using gas chromatography in 3072 participants (900 men and 2172 women) aged 30-75 years from Guangzhou, China. Cardiometabolic factors were determined, and MS was defined using the updated Adult Treatment Panel III criteria. Other covariates were collected via interviewer-administered questionnaires. RESULTS: After adjusting for age and other confounders, higher levels of marine-derived n-3 PUFAs, including EPA, DPA, and DHA, were associated with a lower presence of metabolic syndrome in both men and women. The odds ratios (95 % confidence interval) for MS obtained by comparing extreme quartiles were 0.55 (0.35-0.88) (EPA), 0.54 (0.34-0.87) (DPA), 0.45 (0.27-0.73) (DHA), and 0.52 (0.32-0.84) (total n-3 PUFAs) in men (p trend <0.05 for all results); and 0.74 (0.56-0.99) (EPA), 0.73 (0.55-0.98) (DPA), 0.75 (0.56-1.02) (DHA), and 0.71 (0.53-0.96) (total n-3 PUFAs) in women, respectively. No significant association of ALA with MS was observed (p trend > 0.05). CONCLUSION: Higher levels of total n-3 PUFAs, EPA, DPA, and DHA, but not of ALA, in erythrocyte membranes are associated with a lower presence of metabolic syndrome in Chinese adults.
PURPOSE: Evidence of an association between n-3 polyunsaturated fatty acids (PUFAs) and metabolic syndrome (MS) is limited and inconsistent. We investigated the association between n-3 PUFAs in erythrocytes and the presence of MS in Chinese adults. METHODS: The levels of α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) in erythrocytes were measured using gas chromatography in 3072 participants (900 men and 2172 women) aged 30-75 years from Guangzhou, China. Cardiometabolic factors were determined, and MS was defined using the updated Adult Treatment Panel III criteria. Other covariates were collected via interviewer-administered questionnaires. RESULTS: After adjusting for age and other confounders, higher levels of marine-derived n-3 PUFAs, including EPA, DPA, and DHA, were associated with a lower presence of metabolic syndrome in both men and women. The odds ratios (95 % confidence interval) for MS obtained by comparing extreme quartiles were 0.55 (0.35-0.88) (EPA), 0.54 (0.34-0.87) (DPA), 0.45 (0.27-0.73) (DHA), and 0.52 (0.32-0.84) (total n-3 PUFAs) in men (p trend <0.05 for all results); and 0.74 (0.56-0.99) (EPA), 0.73 (0.55-0.98) (DPA), 0.75 (0.56-1.02) (DHA), and 0.71 (0.53-0.96) (total n-3 PUFAs) in women, respectively. No significant association of ALA with MS was observed (p trend > 0.05). CONCLUSION: Higher levels of total n-3 PUFAs, EPA, DPA, and DHA, but not of ALA, in erythrocyte membranes are associated with a lower presence of metabolic syndrome in Chinese adults.
Entities:
Keywords:
Chinese adults; Erythrocyte; Metabolic syndrome; n-3 polyunsaturated fatty acids
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