Purpose
Data on relationship between dietary intake of sodium and non-alcoholic fatty liver disease (NAFLD) risk are scarce. This paper aims to find the possible association between sodium intake and NAFLD.
Design/methodology/approach
This is a case-control study on NAFLD patients proven by a gastroenterologist using Fibroscan, and age-matched controls. Dietary intakes were assessed using a valid and reliable food frequency questionnaire.
Findings
In the multivariable-adjusted model, after adjustment for potential confounding variables, participants in the highest tertile of sodium intake had a greater risk of developing NAFLD (OR= 2.42; 95% CI: 1.13–5.15) compared to those in the lowest tertile of sodium intake (p-value = 0.023). In sub-analysis, subjects with BMI ≥ 25 in the third tertile of sodium intake had higher risk of NAFLD compared to those in the lowest tertile of sodium intake [(OR: 3.95; 95% CI: 1.75–8.90), (p-value = 0.001)]. However, no significant association was found between tertiles of energy-adjusted daily sodium intake and NAFLD prevalence risk in participants with BMI < 25.
Originality/value
The findings revealed that higher sodium intake is related with a higher prevalence of NAFLD, an association that can be partly mediated through obesity.
Recently the role of adipocytokines in relationship to incidence of diabetes has been demonstrated. One of the medicinal plants that are used in the treatment of diabetes is stevia. This study investigates the effect of stevia on serum omentin and visfatin levels as novel adipocytokines in diabetic induced rats to find potential mechanisms for the anti hyperglycemic effect of stevia. Forty male wistar rats weighing 180-250 g were induced with diabetes by intraperitoneal injection of streptozotocin (STZ). The animals were divided into 5 groups of 8. Rats in group 1 (non-diabetic control) and group 2 (diabetic control) were treated with distilled water, and the rats in the treated groups, group 3 (T250), group 4 (T500), and group 5 (T750) were treated with stevia, gavaged every day at 9 a.m. in doses of 250, 500, and 750 mg/kg, respectively. At the end of the study significant reductions in fasting blood sugar (FBS), the homeostasis model assessment insulin resistance (HOMA-IR), triglyceride (TG), alkaline phosphatase (ALP), and Omentin level were found in groups 3 and 4 in comparison with group 2. Pancreatic histopathology slides demonstrated that stevia extract did not induce any increase in the number of β-cells. The conclusion is that prescription of stevia in the doses of 250 and 500 mg/kg/d decreases the omentin level indirectly via activating insulin sensitivity and lowering blood glucose in STZ-induced diabetic rats.
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