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    Increased microalbuminuria prevalence among patients with nonalcoholic fatty liver disease
    (Taylor & Francis Ltd, 2016) Kasapoglu, Benan; Turkay, Cansel; Yalcin, Kadir Serkan; Boga, Salih; Bozkurt, Alper
    Aim: To determine the prevalence of microalbuminuria, that is an indirect predictor of coronary artery disease, among non-obese and non-diabetic patients with fatty liver disease. Material and method: This retrospective study was carried out on non-obese (body mass index (BMI)<30) and non-diabetic 290 female and 189 male, totally 479 cases. All subjects underwent liver ultrasonography scanning to determine the presence and stage of fatty liver disease. Results: The subjects were grouped according to the ultrasound findings as follows: 182 (37.9%) cases without any fat accumulation in liver were regarded as control group; and among remaining cases, 124 (25.8%) had mild, 93 (19.4%) had moderate, and 80 (16.7%) had severe fatty liver disease. There was not any statistically significant difference between groups in regards to the age, gender, liver function tests, renal function tests or glomerular filtration rate. However urinary protein/creatinine ratio was statistically significantly higher in severe nonalcoholic fatty liver disease (NAFLD) group than the other three groups. In moderate and severe NAFLD groups, microalbuminuria was statistically significantly more common compared with the control and mild NAFLD groups. Regarding the results of multiple logistic regression analysis, presence of fatty liver disease increased the risk of microalbuminuria for 1.87 times independently from increased BMI and increased HOMA-IR values. Conclusion: We have determined that microalbuminuria is more prevalent among NAFLD cases compared with control cases and microalbuminuria prevalence was increasing with the advanced stages of NAFLD although two main etiologic factors of microalbuminuria, type 2 diabetes, and obesity were excluded.
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    MTHFR 677C/T and 1298A/C mutations and non-alcoholic fatty liver disease
    (Roy Coll Phys London Editorial Office, 2015) Kasapoglu, Benan; Turkay, Cansel; Yalcin, Kadir Serkan; Kosar, Ali; Bozkurt, Alper
    Common genetic mutations encountered in folate metabolism may result in increased homocysteine (Hcy) levels. It has been reported that increased serum Hcy levels may affect the intracellular fat metabolism and may cause enhanced fatty infiltration in the liver resulting in non-alcoholic fatty liver disease (NAFLD). In total, 150 patients diagnosed with FLD by ultrasound examination and 136 healthy control patients that do not have any fatty infiltration in the liver were included in the study. Patients were grouped as mild (n=88), moderate (n=38) or severe (n=24) according to the stage of fatty liver in ultrasound. Serum liver function tests, Hcy, folic acid and vitamin B12 levels of the patients were studied. The genetic MTHFR C677T and A1298C polymorphisms of the patients were also evaluated. Although there was no significant difference in vitamin B12 and folic acid levels, in the severe group, Hcy levels were significantly higher than that of control and mild groups (p<0.001). By contrast, there was no significant difference in heterozygote MTHFR 677C/T and 1298A/C mutations, both MTHFR 677C/T and MTHFR 1298A/C mutations were more common in NAFLD groups compared with the control patients (p<0.001). We have determined increased Hcy levels and increased prevalence of homozygote MTHFR 677C/T and MTHFR 1298A/C mutations in patients with NAFLD compared with healthy controls. Larger studies are warranted to clarify the etiological role of the MTHFR mutations and Hcy levels in FLD.
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    Role of ?-glutamyl transferase levels in prediction of high cardiovascular risk among patients with non-alcoholic fatty liver disease
    (Wolters Kluwer Medknow Publications, 2016) Kasapoglu, Benan; Turkay, Cansel; Yalcin, Kadir Serkan; Carlioglu, Ayse; Koktener, Asli
    Background & objectives: Non-alcoholic fatty liver disease (NAFLD) is an important cause of elevated liver functions. There is evidence showing an association between NAFLD and subclinical atherosclerosis independent of traditional risk factors. We undertook this retrospective study to determine the association of Framingham cardiovascular risk scoring system with liver function tests and inflammatory markers and to find the role of liver function tests in determination of CVD risk among non-obese and nondiabetic subjects with non-alcoholic fatty liver disease. Methods: A total of 2058 patients were included in the study. Framingham cardiovascular risk scoring was done of all patients according to the age, gender, systolic blood pressure, serum total cholesterol and HDL cholesterol levels, smoking and antihypertensive medication history. Liver function test, lipid profile, insulin, uric acid, ferritin levels, etc. were determined. Results: According to the ultrasonography findings, patients were grouped as without any fatty infiltration of the liver (control group) (n= 982), mild (n= 473), moderate (n= 363) and severe fatty liver disease (n= 240) groups. In severe fatty liver disease group, the mean Framingham cardiovascular risk score was significantly higher than that of other groups. There was a positive correlation between GGT, uric acid and ferritin levels with Framingham cardiovascular score. In multivariate analysis, high GGT levels were positively associated with high-risk disease presence (OR: 3.02, 95% CI: 2.62-3.42) compared to low GGT levels independent of the age and sex. Interpretation & conclusions: Cardiovascular disease risk increases with the presence and stage of fatty liver disease. Our findings showed a positive correlation between elevated GGT levels and Framingham cardiovascular risk scoring system among non-diabetic, non-obese adults which could be important in clinical practice. Though in normal limits, elevated GGT levels among patients with fatty liver disease should be regarded as a sign of increased cardiovascular disease risk. Larger studies are warranted to elucidate the role of GGT in prediction of cardiovascular risk.