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  • Title: [Interaction of polymorphisms of monocyte chemoattractant protein-1 receptor CCR2 gene 190A/G, nicotinamide adenine dinucleotide phosphate oxidase subunit p22phox gene C242T and cigarette smoking increases the risk of nonalcoholic fatty liver disease].
    Author: Zhang C, Guo L.
    Journal: Wei Sheng Yan Jiu; 2015 Sep; 44(5):730-7. PubMed ID: 26591766.
    Abstract:
    OBJECTIVE: To investigate the interaction of polymorphisms of monocyte chemoattractant protein-I (MCP-1) receptor CCR2 gene 190A/G, nicotinamide adenine dinucleotide phosphate (NADPH) oxidase subunit p22phox gene C242T and cigarette smoking in nonalcoholic fatty liver disease (NAFLD ). METHODS: The genetic polymorphisms of MCP-1 receptor CCR2 gene 190A/G and NADPH oxidase subunit p22phox gene C242T were analyzed by the technique of polymerase chain reaction-restriction fragment length polymorphisms (PCR-RFLP) in peripheral blood leukocytes of 600 NAFLD cases and 600 healthy persons. RESULTS: The frequencies of 190A/G (GG) and C242T (TT) were 50. 17% and 50. 00% in NAFLD cases and 23. 83% and 24. 17% in healthy controls, respectively. There were significant differences in the frequencies between the two groups (χ2 = 88. 8462, P = 0. 0031, χ2 = 85. 8100, P = 0. 0039). The risk of NAFLD with 190A/G (GG) was significantly higher than those with 190A/G (AA + AG) (OR = 3. 2171, 95% CI 1. 9351 - 5. 2184). The individuals who carried with C242T (TT) had a high risk of NAFLD (OR = 3. 1379, 95% CI 1. 7973 - 5. 2362). Combined analysis of the polymorphisms showed that percentage of 190A/G (GG)/C242T (TT) in NAFLD and control groups was 39. 67% and 13. 00%, respectively (χ2 = 118. 3021, P =0. 0017). The people who carried with 190A/G (GG)/C242T (TT) had a high risk of NAFLD (OR =5. 0211, 95% CI 3. 1853 -7. 7926). The cigarette smoking rate of the case group was significantly higher than that in the control group (χ2 = 92. 2234, P = 0. 0025), smokers have a higher risk of lung cancer than non-smokers (OR = 3. 3032, 95% CI 1. 9147 -5. 7413 ), and statistic analysis suggested an interaction between cigarette smoking and 190A/G (GG) and C242T (TT) which increase risk of NAFLD (r = 3. 9983, r = 3. 8553 ). CONCLUSION: 190A/G (GG), C242T (TT) and cigarette smoking are the risk factors in NAFLD, and the significant interactions between genetic polymorphisms of 190A/G (GG), C242T (TT) and cigarette smoking added the risk of NAFLD.
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