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The interactive effects of hepatic lipase gene promoter polymorphisms with sex and obesity on high-density-lipoprotein cholesterol levels in Taiwanese-Chinese.
Atherosclerosis. 2004 Jan; 172(1):135-42.A

Abstract

OBJECTIVES

Hepatic lipase (HL) is involved in the metabolism of several lipoproteins and plays a key role in reverse cholesterol transport. The aim of the current study was to test the statistical association between two HL gene promoter polymorphisms (HL-514C/T and HL-250G/A) and lipoprotein profiles in a Taiwanese-Chinese population.

METHODS

A sample population of 716 Taiwanese-Chinese individuals was analyzed. DNA was extracted from the blood and genotypes were determined by polymerase chain reaction, restriction enzyme digestion, and agarose gel electrophoresis.

RESULTS

Analysis of the data revealed that these two polymorphisms are in strong linkage disequilibrium (D/D(max)=0.97, P<0.001). A significantly lower total cholesterol/HDL-C ratio was noted for carriers with the -514T and -250A alleles compared to non-carriers (P=0.007 and 0.004, respectively). A significant trend of the association was also found on the high levels of high-density-lipoprotein cholesterol (HDL-C) among carriers with the -514T and -250A alleles as opposed to that of non-carriers (P=0.030 and 0.023, respectively). Multivariate analysis has demonstrated that the effects of HL-514C/T and HL-250G/A polymorphisms on HDL-C levels were not affected by subjects' sex, body mass index, plasma triglyceride levels and the cholesterol ester transfer protein gene TaqIB polymorphism. Subgroup analysis on each sex has revealed that the two studied polymorphisms were significantly associated with HDL-C levels among males but not significant in women. The same association between obese and non-obese men was not consistent. The P-value of the respective polymorphisms on HDL-C levels were 0.012 and 0.002 among obese men, but not significant among non-obese men.

CONCLUSION

Analysis of our data revealed an independent association between the HL gene promoter polymorphisms and HDL-C levels in Taiwanese-Chinese. The data also suggests that the HL-514C/T and HL-250G/A polymorphisms interact with sex and obesity on HDL-C levels. The findings give clues for identifying high risk population in preventive medicine and clinical diagnosis. The subsequent impacts on treatment profiles and prognosis were derived from this study.

Authors+Show Affiliations

The First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, No.199 Tung-Hwa North Road, Taipei, Taiwan, ROC. koyulin@adm.cgmh.org.twNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

14709367

Citation

Ko, Yu-Lin, et al. "The Interactive Effects of Hepatic Lipase Gene Promoter Polymorphisms With Sex and Obesity On High-density-lipoprotein Cholesterol Levels in Taiwanese-Chinese." Atherosclerosis, vol. 172, no. 1, 2004, pp. 135-42.
Ko YL, Hsu LA, Hsu KH, et al. The interactive effects of hepatic lipase gene promoter polymorphisms with sex and obesity on high-density-lipoprotein cholesterol levels in Taiwanese-Chinese. Atherosclerosis. 2004;172(1):135-42.
Ko, Y. L., Hsu, L. A., Hsu, K. H., Ko, Y. H., & Lee, Y. S. (2004). The interactive effects of hepatic lipase gene promoter polymorphisms with sex and obesity on high-density-lipoprotein cholesterol levels in Taiwanese-Chinese. Atherosclerosis, 172(1), 135-42.
Ko YL, et al. The Interactive Effects of Hepatic Lipase Gene Promoter Polymorphisms With Sex and Obesity On High-density-lipoprotein Cholesterol Levels in Taiwanese-Chinese. Atherosclerosis. 2004;172(1):135-42. PubMed PMID: 14709367.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The interactive effects of hepatic lipase gene promoter polymorphisms with sex and obesity on high-density-lipoprotein cholesterol levels in Taiwanese-Chinese. AU - Ko,Yu-Lin, AU - Hsu,Lung-An, AU - Hsu,Kuang-Hung, AU - Ko,Yu-Hsien, AU - Lee,Ying-Shiung, PY - 2004/1/8/pubmed PY - 2004/5/21/medline PY - 2004/1/8/entrez SP - 135 EP - 42 JF - Atherosclerosis JO - Atherosclerosis VL - 172 IS - 1 N2 - OBJECTIVES: Hepatic lipase (HL) is involved in the metabolism of several lipoproteins and plays a key role in reverse cholesterol transport. The aim of the current study was to test the statistical association between two HL gene promoter polymorphisms (HL-514C/T and HL-250G/A) and lipoprotein profiles in a Taiwanese-Chinese population. METHODS: A sample population of 716 Taiwanese-Chinese individuals was analyzed. DNA was extracted from the blood and genotypes were determined by polymerase chain reaction, restriction enzyme digestion, and agarose gel electrophoresis. RESULTS: Analysis of the data revealed that these two polymorphisms are in strong linkage disequilibrium (D/D(max)=0.97, P<0.001). A significantly lower total cholesterol/HDL-C ratio was noted for carriers with the -514T and -250A alleles compared to non-carriers (P=0.007 and 0.004, respectively). A significant trend of the association was also found on the high levels of high-density-lipoprotein cholesterol (HDL-C) among carriers with the -514T and -250A alleles as opposed to that of non-carriers (P=0.030 and 0.023, respectively). Multivariate analysis has demonstrated that the effects of HL-514C/T and HL-250G/A polymorphisms on HDL-C levels were not affected by subjects' sex, body mass index, plasma triglyceride levels and the cholesterol ester transfer protein gene TaqIB polymorphism. Subgroup analysis on each sex has revealed that the two studied polymorphisms were significantly associated with HDL-C levels among males but not significant in women. The same association between obese and non-obese men was not consistent. The P-value of the respective polymorphisms on HDL-C levels were 0.012 and 0.002 among obese men, but not significant among non-obese men. CONCLUSION: Analysis of our data revealed an independent association between the HL gene promoter polymorphisms and HDL-C levels in Taiwanese-Chinese. The data also suggests that the HL-514C/T and HL-250G/A polymorphisms interact with sex and obesity on HDL-C levels. The findings give clues for identifying high risk population in preventive medicine and clinical diagnosis. The subsequent impacts on treatment profiles and prognosis were derived from this study. SN - 0021-9150 UR - https://www.unboundmedicine.com/medline/citation/14709367/The_interactive_effects_of_hepatic_lipase_gene_promoter_polymorphisms_with_sex_and_obesity_on_high_density_lipoprotein_cholesterol_levels_in_Taiwanese_Chinese_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9150(03)00407-6 DB - PRIME DP - Unbound Medicine ER -