Common sequence variants in CD36 gene and the levels of triglyceride and high-density lipoprotein cholesterol among ethnic Chinese in Taiwan

Chien Kuo-Liong, Hsu Hsiu-Ching, Liu Pi-Hua, Lin Hung-Ju, Chen, Chen Ming-Fong

Description

Evidence of the genetic association between CD36 candidate gene and the risk of metabolic syndrome and its components has been inconsistent. This case–control study assessed the haplotype-tagged SNPs from CD36 on the risk of metabolic syndrome and components. Methods and results We recruited 1,000 cases and age, gender-matched controls were randomly selected from the participants with metabolic syndrome defined by International Diabetes Federation. Overall, the haplotype tagged SNPs of CD36 gene were not related to the risk of metabolic syndrome. For individuals with normal lipid levels, several SNPs were significantly associated with the triglycerides and HDL-cholesterol levels: Subjects with rs3211848 homozygote had a higher triglyceride level (99.16 ± 2.61 mg/dL), compared with non-carriers (89.27 ± 1.45 mg/dL, P = 0.001). In addition, compared with non-carriers, individuals with rs1054516 heterozygous and homozygous genotypes had a significantly lower HDL-cholesterol (46.6 ± 0.46 mg/dL for non-carrier, 44.6 ± 0.36 mg/dL for heterozygous, and 44.3 ± 0.56 mg/dL for homozygous, P = 0.0008). Conclusion The CD36 gene variants were significantly associated with triglycerides and HDL-cholesterol concentrations among ethnic Chinese in Taiwan.

Sujets

• Metabolic syndrome

Informations

• Publié par: biomed
• Publié le: 01 janvier 2012
• Nombre de lectures: 8
• Langue: English

Extrait

Chienet al. Lipids in Health and Disease2012,11:174 http://www.lipidworld.com/content/11/1/174

R E S E A R C HOpen Access Common sequence variants in CD36 gene and the levels of triglyceride and highdensity lipoprotein cholesterol among ethnic Chinese in Taiwan 1,2 23 22* KuoLiong Chien, HsiuChing Hsu , PiHua Liu , HungJu Linand MingFong Chen

Abstract Background:Evidence of the genetic association betweenCD36candidate gene and the risk of metabolic syndrome and its components has been inconsistent. This case–control study assessed the haplotypetagged SNPs fromCD36on the risk of metabolic syndrome and components. Methods and results:We recruited 1,000 cases and age, gendermatched controls were randomly selected from the participants with metabolic syndrome defined by International Diabetes Federation. Overall, the haplotype tagged SNPs of CD36 gene were not related to the risk of metabolic syndrome. For individuals with normal lipid levels, several SNPs were significantly associated with the triglycerides and HDLcholesterol levels: Subjects with rs3211848 homozygote had a higher triglyceride level (99.16± 2.61mg/dL), compared with noncarriers (89.27 ± 1.45mg/dL,P= 0.001).In addition, compared with noncarriers, individuals with rs1054516 heterozygous and homozygous genotypes had a significantly lower HDLcholesterol (46.6± 0.46mg/dL for noncarrier, 44.6 ± 0.36mg/dL for heterozygous, and 44.3± 0.56mg/dL for homozygous,P= 0.0008). Conclusion:TheCD36gene variants were significantly associated with triglycerides and HDLcholesterol concentrations among ethnic Chinese in Taiwan. Keywords:Metabolic syndrome, CD 36 gene polymorphism

Introduction The CD36 is a glycoprotein located in membrane and plays various cellular processes such as lipid transport, immune regulation, coagulation and atherosclerosis [1], and the CD36 structure is related to scavenger receptor B1, and highly binds to oxidized LDL [2], which induced atherosclerosis process.CD36gene variants regulated fatty acid metabolism and accumulation of fat and fat metabolites, and may influence the risk of metabolic syndrome and may be a target for further personalized medicine screening [3]. Emerging evidence indicating that variation in the CD36gene may play a role in the pathogenesis of

* Correspondence: [e-mail] 2 Department of Internal Medicine, National Taiwan University Hospital, Taipei 100, Taiwan Full list of author information is available at the end of the article

metabolic syndrome. Individuals with CD36 deficiency, which is prevalent among Asians, were likely to have the abnormal levels of triglycerides and HDLcholesterol [4,5]. In addition, genetic variants ofCD36were related to acute myocardial infarction [6], type 2 diabetes [7,8], metabolic syndrome components [9,10], fatty acids [9] and adiponectin levels [11], and free fatty acids [12]. However, no special ethnic Chinese population was reported and only modest effects have been identified for variants ofCD36gene for metabolic syndrome, and the associations for metabolic syndrome itself have often been inconsistent. These inconsistent findings may be attributed to inadequate information fromCD36gene. In addition, the confounding effects by clinical and life style factors should be considered concurrently [13]. Therefore, we examined the association of common variants of theCD36gene with the metabolic syndrome

© 2012 Chien et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.