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The G-250A polymorphism in the hepatic lipase gene promoter is associated with changes in hepatic lipase activity and LDL cholesterol: The KANWU Study
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Public Health and Caring Sciences. (Clinical Nutrition)
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2008 (English)In: NMCD. Nutrition Metabolism and Cardiovascular Diseases, ISSN 0939-4753, Vol. 18, no 2, 88-95 p.Article in journal (Refereed) Published
Abstract [en]

Background and aims: Hepatic lipase (HL) catalyzes the hydrolysis of triglycerides and phospholipids from lipoproteins, and promotes the hepatic uptake of tipoproteins. A common G-250A polymorphism in the promoter of the hepatic lipase gene (LIPC) has been described. The aim was to study the effects of the G-250A polymorphism on HL activity, serum lipid profile and insulin sensitivity. Methods and results: Altogether 151 healthy subjects (age 49 +/- 8 years, BMI 26.5 +/- 3.0 kg/m(2)) were randomly assigned for 3 months to an isoenergetic diet containing either a high proportion of saturated fatty acids (SFA diet) or monounsaturated fatty acids (MUFA diet). Within groups there was a second random assignment to supplements with fish oil (3.6 g n-3 FA/day) or placebo. At baseline, the A-250A genotype was associated with high serum LDL cholesterol concentration (P = 0.030 among three genotypes). On the MUFA diet carriers of the A-250A genotype presented a greater decrease in LDL cholesterol concentration than subjects with other genotypes (P = 0.007 among three genotypes). The rare -250A allele was related to Low HL activity (P < 0.001 among three genotypes). The diet did not affect the levels of HL activity among the genotypes. Conclusion: The A-250A genotype of the LIPC gene was associated with high LDL cholesterol concentration, but the MUFA-enriched diet reduced serum LDL cholesterol concentration especially in subjects with the A-250A genotype.

Place, publisher, year, edition, pages
2008. Vol. 18, no 2, 88-95 p.
Keyword [en]
diet, fat, fish oil, hepatic lipase, lipoproteins, polymorphism
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-10987DOI: 10.1016/j.numecd.2006.09.008ISI: 000254571400002PubMedID: 17327141OAI: oai:DiVA.org:uu-10987DiVA: diva2:38755
Available from: 2007-05-08 Created: 2007-05-08Bibliographically approved

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