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Associations of the SREBP-1c gene polymorphism with gender-specific changes in serum lipids induced by a high-carbohydrate diet in healthy Chinese youth
journal contribution
posted on 2011-04-01, 00:00 authored by Z Zhang, R Gong, J Du, L Xiao, Wei DuanWei Duan, X Zhou, D FangWe investigated the possible association between the sterol regulatory element-binding protein-1c gene (SREBP-1c) rs2297508 polymorphism and the changes in lipid profiles in a high-carbohydrate and low-fat (high-CHO/LF) diet in a Chinese population well characterized by a lower incidence of coronary heart disease and a diet featuring higher carbohydrate and lower fat. Fifty-six healthy youth (aged 22.89 ± 1.80 years) were given wash-out diets of 31% fat and 54% carbohydrate for 7 days, followed by the high-CHO/LF diet of 15% fat and 70% carbohydrate for 6 days, without total energy restriction. Fasting blood samples were collected. Serum variables of lipid and glucose metabolism after the wash-out and high-CHO/LF diets, as well as the rs2297508 polymorphism, were analyzed. Compared with the male subjects on the wash-out diet, significantly elevated levels of high-density lipoprotein cholesterol (HDL-C) and decreased levels of apolipoprotein B-100 were observed in the male carriers of the C allele after the high-CHO/LF diet. In the female subjects, significantly increased triacylglycerol levels, insulin, and homeostasis model assessment of insulin resistance (HOMA-IR) were found in the GG genotype after the high-CHO/LF diet. These results suggest that the C allele of the rs2297508 polymorphism is associated with a retardation of the increases in serum triacylglycerol, serum insulin, and HOMA-IR in females and with the elevated serum HDL-C in males after the high-CHO/LF diet.
History
Journal
Applied physiology, nutrition and metabolismVolume
36Issue
2Pagination
226 - 232Publisher
NRC Research PressLocation
Ottawa, CanadaPublisher DOI
ISSN
1715-5312eISSN
1715-5320Language
engPublication classification
C1 Refereed article in a scholarly journal; C Journal articleCopyright notice
2011, NRC Research PressUsage metrics
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No categories selectedKeywords
sterol regulatory element-binding protein-1cpersonalized nutritionhypertriacylglycerolemiacoronary heart diseaseScience & TechnologyLife Sciences & BiomedicineNutrition & DieteticsPhysiologySport SciencesELEMENT-BINDING PROTEIN-1CCORONARY-ARTERY-DISEASEINSULIN-RESISTANCECHOLESTEROL LEVELSDIABETES-MELLITUSAPOLIPOPROTEIN-BRISK-FACTORSFAT DIETEXPRESSIONHYPERTRIGLYCERIDEMIA
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