Browsing by Author "Shen, Huafeng"

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    Association between serum cotinine level and prevalence of non-alcoholic fatty liver disease: a cross-sectional study from the Third National Health and Nutrition Examination Survey
    (BMJ Journals, 2017-01) Shen, Huafeng; Peng, Jennifer L.; Tayarachakul, Sucharat; Liangpunsakul, Suthat; Medicine, School of Medicine
    The data on the effect of smoking on non-alcoholic fatty liver disease (NAFLD) has been controversial. The aim of this study was to investigate if an association exists between serum cotinine level (a tobacco biomarker) and NAFLD prevalence in the general US population. We conducted a cross-sectional analysis of data from the Third National Health and Nutrition Examination Survey (NHANES III). We included 11,003 adults aged 20-74 years who underwent ultrasonography. Of those, 4036 were identified as having NAFLD and 6967 were recognized as controls. The percentage of current smokers was significantly lower in subjects with NAFLD compared with those in controls (21.5% vs 26.0%, p<0.01). After adjustment for potential confounders, there was no association between current or former smokers with NAFLD. Additionally, no associations were observed between the levels of serum cotinine and NAFLD. No association between serum cotinine levels at each quartile level and NAFLD was observed regardless of smoking status. In this large US population-based study, we did not find an association between NAFLD and self-reported smoking status or measured serum cotinine level.
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    Histamine H2-Receptor Antagonists Use Is Associated with Lower Prevalence of Nonalcoholic Fatty Liver Disease: A Population-Based Study from the National Health and Nutrition Examination Survey, 2001-2006
    (Wolters Kluwer, 2016-08) Shen, Huafeng; Liangpunsakul, Suthat; Medicine, School of Medicine
    Background & Aim Recent basic mechanistic studies found that proton pump inhibitors (PPIs) or histamine antagonists inhibited multiple pathways involved in non-alcoholic fatty liver disease (NAFLD) development. The aim of this study was to investigate an association between PPIs or H1/H2-receptor antagonists (H1RAs/H2RAs) use and NAFLD prevalence in the general US population. Methods We conducted a cross-sectional analysis of data from the National Health and Nutrition Examination Survey, 2001 – 2006. We included 10,398 adults aged 20 – 74 years who had alanine aminotransferase (ALT) data; of those, 2,058 were identified as having NAFLD and 8,340 as controls. PPIs or H1RAs/H2RAs use was defined as use of prescription medications in the preceding month. The length of use was categorized as ≤ 60 days and > 60 days. NAFLD was defined as elevated serum aminotransferases without any indication of other causes of chronic liver disease. Results In the multivariate unconditional logistic regression analysis, H2RAs use was inversely associated with prevalent NAFLD (odds ratio [OR] = 0.43, 95% confidence interval [CI] 0.18 – 0.99), a finding that was primarily limited to men (OR = 0.18, 95% CI 0.04 – 0.79) and those with insulin resistance (OR = 0.22, 95% CI 0.05 – 0.95). However, no significant associations were found between PPIs or H1RAs use and prevalent NAFLD. Conclusion These findings, from the first human study to investigate an association of PPIs or H1RAs/H2RAs use with NAFLD, suggest that H2RAs use may be associated with a lower prevalence of NAFLD, primarily among men with insulin resistance.