Objective The precise relationship between alcohol intake and metabolic syndrome (MetS) is still unclear, and the results from previous studies have been inconclusive. Thus, we examined the effect of alcohol intake on the risk of MetS in men in order to gain more information on a potential relationship. Methods This study included 22,349 men who were divided into four groups according to their average alcohol intake [non-, light (less than 20 g ethanol/day), heavy (equal or more than 20 g and less than 60 g ethanol/day) and very heavy (equal and greater than 60 g ethanol/day) drinkers]. We measured each subject's body mass index (BMI), waist circumference and blood pressure (BP) and conducted a blood test to obtain a complete blood count and biochemical panel. These results were used to obtain the MetS prevalence. Additionally, fatty liver was diagnosed using abdominal ultrasonography. Results Light drinkers had smaller waist circumferences. Heavy and very heavy drinkers had larger waist circumferences, a higher BMI, a higher BP, higher fasting plasma glucose levels, higher triglycerides (TG) levels and higher high-density lipoprotein (HDL) cholesterol levels while they had lower low-density lipoprotein cholesterol levels than nondrinkers. The prevalence of high BP, hyperglycemia and high TG was significantly higher in heavy and very heavy drinkers than in nondrinkers. The prevalence of low HDL cholesterol levels decreased with an increase in alcohol consumption. The prevalence of MetS was significantly lower in light drinkers and higher in very heavy drinkers compared with nondrinkers. Conclusion Alcohol intake significantly influences the risk of MetS in men. A significant association was seen between an alcohol intake of 60 g/day or higher and the prevalence of MetS.

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Objective The aim of this retrospective cohort study was to assess the predictive factors for the regression from impaired glucose tolerance (IGT) to normal glucose regulation (NGR) in patients with nonalcoholic fatty liver disease (NAFLD). Methods A total of 164 NAFLD patients who had IGT in the first 75-g oral glucose tolerance test (OGTT) and underwent a repeated OGTT five years later were enrolled. A multivariate logistic regression analysis was carried out to identify factors predicting the regression from IGT to NGR. Results Out of the 164 patients, 29 regressed from IGT to NGR within five years after the first OGTT. The multivariate analysis by logistic regression showed that regression from IGT to NGR occurred when the patient was young (risk ratio for ten years: 0.38; 95% confidence interval [CI] 0.20-0.72; p=0.003), had a fasting plasma glucose (FPG) level of <100 mg/dL (risk ratio: 6.53; 95%CI 1.88-21.73; p=0.003), had a 2-hr post-load plasma glucose (PG) level of <160 mg/dL (risk ratio: 4.86; 95%CI 1.08-22.72; p=0.040), a body mass index (BMI) decrease of ! 1.5 (risk ratio: 5.20; 95%CI 1.41-19.24; p=0.014), physical activity of ! 2 Metabolic Equivalent of Task (MET) h/day (risk ratio: 5.57; 95%CI 1.68-18.44; p=0.005), and showed disappearance of the fatty liver by ultrasonography at five years (risk ratio: 9.92; 95%CI 2.87-34.34; p<0.001). Conclusion Our results suggest that six factors: young age, FPG <100 mg/dL, 2-hr post-load PG of <160 mg/dL, BMI decrease of ! 1.5, physical activity of ! 2 MET h/day, and the disappearance of fatty liver predict the regression from IGT to NGR in NAFLD patients.

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