Format

Send to

Choose Destination
Hepat Mon. 2016 Apr 27;16(4):e35055. doi: 10.5812/hepatmon.35055. eCollection 2016 Apr.

Leptin Receptor Gene Polymorphisms and the Risk of Non-Alcoholic Fatty Liver Disease and Coronary Atherosclerosis in the Chinese Han Population.

Author information

1
Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China.
2
Digestive Disease Key Laboratory of Qingdao, Qingdao, China; Central Laboratories, Qingdao Municipal Hospital, Qingdao, China.
3
Department of Gastroenterology, Qingdao Municipal College, Nanjing Medical University, Qingdao, Shandong Province, China; Digestive Disease Key Laboratory of Qingdao, Qingdao, China; Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, China.

Abstract

BACKGROUND:

Leptin receptor (LEPR) polymorphisms have been reported to be associated with lipid metabolism and insulin resistance in various populations. However, whether LEPR polymorphisms are associated with the risks of non-alcoholic fatty liver disease (NAFLD) and coronary atherosclerosis in the Chinese Han population remains unknown.

OBJECTIVES:

To investigate the association of LEPR polymorphisms at Q223R and K109R with the risks of NAFLD and coronary atherosclerosis in the Chinese Han population.

PATIENTS AND METHODS:

Genotypes of LEPR Q223R and K109R were determined by polymerase chain reaction followed by sequencing in patients with NAFLD (n = 554), coronary atherosclerosis (n = 421), and healthy controls (n = 550). Serum lipid profiles were determined using biochemical methods. Pearson's χ(2) test was used to check for Hardy-Weinberg equilibrium and to analyze the distributions of genotypes' alleles between groups. Baseline characteristics were analyzed using student's t-test, paired-samples t-test, or the χ(2) test where appropriate.

RESULTS:

The LEPR Q223R A allele significantly reduced the risks of both NAFLD and coronary atherosclerosis (OR = 0.683, 95% CI: 0.527 - 0.884, P = 0.004 and OR = 0.724, 95% CI: 0.548 - 0.955, P = 0.022, respectively). Compared to controls, no significant differences in the genotype and allele frequencies of K109R were found in the NAFLD and coronary atherosclerosis populations, respectively. However, there was a significantly increased risk of coronary atherosclerosis in NAFLD patients who carried the K109R A allele (OR = 2.283, 95% CI: 1.556 - 3.348, P < 0.001).

CONCLUSIONS:

LEPR Q223R polymorphisms may confer a significant risk of NAFLD and coronary atherosclerosis. The A allele in the K109R polymorphism might be considered an independent risk factor for coronary atherosclerosis in NAFLD patients.

KEYWORDS:

Coronary Atherosclerosis; LEPR; Non-Alcoholic Fatty Liver Disease; Single Nucleotide Polymorphism

Supplemental Content

Full text links

Icon for PubMed Central
Loading ...
Support Center