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USF-1 genetic polymorphisms confer a high risk of nonalcoholic fatty liver disease in Chinese population.

ABSTRACT: Genetic polymorphisms in upstream transcription factor 1 (USF1) were investigated for their links to increased risk of nonalcoholic fatty liver disease (NAFLD) in Chinese population. Between January 2013 and April 2014, 174 patients with NAFLD in the First Affiliated Hospital of China Medical University were selected for this study. A group of 100 healthy subjects were identified as the control group. The MALDI-TOF-MS, a mass spectrometry based technique, was used to detect USF-1 genetic polymorphisms using PCR amplified DNA products. Furthermore, Automatic Chemistry Analyzer (ACA) was used to determine the clinical indicators. Genotypes, allele frequencies and clinical indicators were measured to assess NAFLD risk in relation to the SNPs. USF-1 rs6427573 genetic polymorphisms were associated with an increased risk of NAFLD (AA vs. GG: OR = 3.16, 95% CI = 1.56-6.43, P = 0.001; GA + AA vs. GG: OR = 1.87, 95% CI = 1.13-3.09, P = 0.015; GG + AA vs. AA: OR = 2.96, 95% CI = 1.49-5.88, P = 0.001; G vs. A: OR = 2.10, 95% CI = 1.43-3.09, P < 0.001). Similarly, rs2516839 polymorphisms also conferred a risk for NAFLD (AA vs. GG: OR = 2.49, 95% CI = 1.43-4.34, P = 0.001; GA + AA vs. GG: OR = 1.69, 95% CI = 1.02-2.78, P = 0.041). On the other hand, rs3737787 and rs2774279 showed no statistical significances in the NAFLD group and control group (P > 0.05). Two USF-1 genetic polymorphisms, rs6427573 and rs2516839, may present an increased risk of NAFLD.

SUBMITTER: Wang Y

PROVIDER: S-EPMC4402847 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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USF-1 genetic polymorphisms confer a high risk of nonalcoholic fatty liver disease in Chinese population.

Wang Ying Y Wang Bai-Fang BF Tong Jing J Chang Bing B Wang Bing-Yuan BY

International journal of clinical and experimental medicine 20150215 2

Genetic polymorphisms in upstream transcription factor 1 (USF1) were investigated for their links to increased risk of nonalcoholic fatty liver disease (NAFLD) in Chinese population. Between January 2013 and April 2014, 174 patients with NAFLD in the First Affiliated Hospital of China Medical University were selected for this study. A group of 100 healthy subjects were identified as the control group. The MALDI-TOF-MS, a mass spectrometry based technique, was used to detect USF-1 genetic polymor ...[more]

PMID: 25932200

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Project description:BackgroundGenome-wide association studies have shown that rs738491, rs2143571, and rs3761472 in the sorting and assembly machinery component 50 homolog (SAMM50) gene are significantly associated with susceptibility to nonalcoholic fatty liver disease (NAFLD).ObjectivesThe present study evaluated the association between the three genetic variants in the SAMM50 gene and susceptibility to NAFLD in a Chinese Han population.Patients and methodsGenotypes for 3 single nucleotide polymorphisms (SNPs), viz rs738491, rs2143571, and rs3761472, in the SAMM50 gene were determined using an improved multiplex ligation detection reaction technique in 340 B-type ultrasonography-diagnosed NAFLD patients and 452 healthy controls. Meanwhile, serum lipid profiles and liver enzymes were estimated using standard clinical laboratory methods. The SNP-SNP interactions were analyzed by performing multifactor dimensionality reduction (MDR) and generalized multifactor dimensionality reduction (GMDR).ResultsThe genotype and allele frequencies of the SAMM50 polymorphisms between the NAFLD group and the control group were significantly different (all Ps < 0.05). In the multivariate analysis adjusted for gender, age, and body mass index, the carriers of the rs738491 T allele, rs2143571 A allele, and rs3761472 G allele had significantly increased susceptibility to NAFLD (OR, 1.507; 95% CI, 1.035 to 2.195; P = 0.032; OR, 1.761; 95% CI, 1.232 to 2.517; P = 0.002; OR, 1.483; 95% CI, 1.039 to 2.115; P = 0.030, respectively). Moreover, the rs738491 T allele carriers had significantly higher levels of alanine aminotransferase (ALT) (P = 0.017) than did the noncarriers. However, differences in the levels of serum triglyceride (TG) and aspartate aminotransferase (AST) were not statistically significant (P = 0.123; P = 0.107). The Rs2143571 A allele and the rs3761472 G allele were both deeply associated with increased levels of serum TG, ALT, and AST (all Ps < 0.05). Furthermore, the MDR and GMDR showed that a synergistic relationship might exist between rs738491, rs2143571, and rs3761472 in the SAMM50 gene and the pathophysiology and genetics of NAFLD.ConclusionsWe first demonstrated that the rs738491 T allele, rs2143571 A allele, and rs3761472 G allele in the SAMM50 gene created susceptibility to NAFLD in a Chinese Han population. The combination of the three SNPs in the SAMM50 gene may have synergism to predict the predisposition to NAFLD.

Project description:IntroductionVitamin D-binding protein (VDBP) is correlated with nonalcoholic fatty liver disease (NAFLD) through the biological functions of regulating plasma vitamin D (VD) level and the inflammatory process.ObjectiveThis study aims to investigate the effects of VD level and VDBP gene polymorphisms on the risk of NAFLD in a Chinese population.MethodsPlasma 25-hydroxyvitamin D3 levels were measured and seven VDBP candidate genetic variants (rs222020, rs2282679, rs4588, rs1155563, rs7041, rs16847024, rs3733359) were genotyped among participants in this case-control study. The control group was frequency-matched to the NAFLD case group by age and gender. Correlation analysis and multiple linear regressions were used to screen determinants of 25-hydroxyvitamin D3 levels. Multivariable unconditional logistic regression was performed to estimate odds ratio (OR) and 95% confidence interval (95% CI). The prediction capability of models containing independent factors was estimated by the area under the receiver operating characteristic curve and Hosmer-Lemeshow test.ResultsAge, body mass index, and triacylglycerol were independent factors influencing VD levels. Participants with low VD levels had significantly higher prevalence of NAFLD compared to subjects with normal VD levels (p < 0.001). A low VD level contributed to increased the risk of NAFLD, independent of metabolic factors known to affect VD levels (adjusted OR = 2.282, 95% CI = 1.422-3.661, p = 0.001). Logistic regression analysis showed that individuals carrying rs7041-G allele had a significantly decreased the risk of NAFLD occurrence compared to T allele (additive model: adjusted OR = 0.814, 95% CI = 0.713-0.929, p = 0.002; codominant model: adjusted OR = 0.623, 95% CI = 0.449-0.866, p = 0.005), after adjusting for age, gender, and overweight. Stratification by multiple metabolic disorders did not alter this relationship. Moreover, we developed a simple model including age, gender, metabolic disorders, and VDBP single nucleotide polymorphism (SNP) to assess NAFLD risk, an AUC of which being 0.817, significantly higher than the model not included VDBP SNP, with Hosmer-Lemeshow test fitting well (p = 0.182).ConclusionsLow plasma VD levels may increase susceptibility to NAFLD, while rs7041-G allele in VDBP contributed to a decreased NAFLD risk among Chinese population. The VDBP variant significantly improved the capability for NAFLD risk assessment, which could be used for early screening and management of NAFLD.

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USF-1 genetic polymorphisms confer a high risk of nonalcoholic fatty liver disease in Chinese population.

Publications

USF-1 genetic polymorphisms confer a high risk of nonalcoholic fatty liver disease in Chinese population.

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