Abstract
Some studies indicated poor vitamin D level in NAFLD which is independently correlated with severity of steatosis. Low 25(OH) D3 levels are associated with an impaired lipid profile. Impaired levels and function of vaspin and omentin, which are adipokines, have been demonstrated in NAFLD patients. This study determined the relationship between vitamin D and serum liver enzymes, ultrasound findings, some adipokines, atherogenic index of plasma (AIP) and visceral adiposity index (VAI) in patients with NAFLD in a cross-sectional study. This study was a cross-sectional study in eighty-three NAFLD patients (57 males and 26 females). Plasma levels of omentin-1e-1, vaspin were measured. Anthropometric indices metabolic status was assessed. Visceral adiposity index and atherogenic index of plasma were calculated according to suggested formula. Anthropometric indices, lipid profiles, liver enzymes as well as abdominal ultrasonography and the status of vitamin D were assessed. The results showed that aspartate aminotransferase (AST) (44.22±8.5IU/L vs. 40.19±8.75IU/L, p-value=0.039) AIP (0.767±0.142 vs. 0.6417±0.139, p<0.001) and VAI (9.28±3.25 vs. 7.048±2.415, p=0.001) were significantly higher in patients with vitamin D deficiency compared to those with vitamin D sufficiency. The positive correlations between Vaspin levels and vitamin D were found to be remarkably significant in both males and females (r=0.437; P=0.004; P<0.001, r=-0.709, respectively. In both males and females serum vitamin D concentrations were negatively associated with AIP. Partial correlations controlling for age and sex showed that vitamin D is significantly and inversely associated with AIP, VAI, AST, and ALT. Additionally, vitamin D levels correlated directly with vaspin.
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More From: International Journal for Vitamin and Nutrition Research
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