[Association of hepatic lipase gene promoter polymorphism -514C/T with nonalcoholic fatty liver disease].
OBJECTIVE
To study the prevalence of the hepatic lipase gene (LIPC) promoter polymorphism (at position -514) in patients with nonalcoholic fatty liver disease (NAFLD), and its relationship with the susceptibility to NAFLD.


METHODS
Genotype of LIPC promoter was detected with PCR-RFLP in 106 patients with NAFLD. Body mass index, waist-to-hip ratio (WHR), blood pressure, CHOL, HDL, LDL, TG, FPG and FINS of the patients were measured. Index of insulin resistance was determined using the homeostasis model assessment (HOMA) method. One hundred six healthy subjects matched for age and sex served as controls.


RESULTS
The frequency of CC genotype and C allele in the NAFLD group were significantly higher than those in the control group (31.1% vs 26.4%, 62.7% vs 54.2%, P<0.05). Compared with TT genotype, both CC genotype and CT genotypes had higher relative risk of NAFLD (OR: 3.73, 95% CI: 1.31, 10.63; OR: 3.60, 95% CI: 1.35, 9.60). At the same time, the non-carriers of T allele in -514 had higher WHR than the T carriers (0.877+/-0.06 vs 0.848+/-0.06, t=2.072, P<0.05)). Logistic regression analysis showed that T substitution in LIPC-514 position (OR: 1.28, 95% CI 0.10-0.74) had a lower susceptibility to NAFLD.


CONCLUSIONS
The LIPC-514C/T polymorphism is associated with WHR, and the T substitution of LIPC-514 may lower the susceptibility to NAFLD.
Department of Gastroenterology and Hepatology, First Municipal People's Hospital of Guangzhou, Guangzhou 510180, China.
Qi
Q
Zhan
Yu-yuan
YY
Li
Yu-qiang
YQ
Nie
Yong-jian
YJ
Zhou
Yan-lei
YL
DU
Wei-hong
WH
Sha
Hong
H
Wang
D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D005234:Fatty Liver / Q000201:enzymology / Q000235:genetics*; D005260:Female; D005838:Genotype; D006801:Humans; D008049:Lipase / Q000235:genetics*; D008099:Liver / Q000201:enzymology; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D011401:Promoter Regions, Genetic; D049629:Waist-Hip Ratio
C504173:LIPC protein, human; D008049:Lipase