The Impact of Combined Cranberry Supplementation and Weight Loss Diet on Inflammatory, Antioxidant and Apoptosis Biomarkers in Patients with Non-Alcoholic Fatty Liver Disease
Abstract Background Non-alcoholic fatty liver disease (NAFLD) is a prevalent chronic liver diseases. The aim of this study was to evaluate the effect of combined weight loss diet and cranberry supplementation on inflammatory, antioxidant and apoptosis biomarkers in patients with NAFLD. Methods In this randomized, double-blinded, controlled clinical trial, 41 NAFLD patients were supplemented with either a 288-mg cranberry tablet or a placebo tablet for 12 weeks. Both groups followed a diet of 500–1000 calories less than the estimated energy requirements. Serum levels of Total antioxidant capacity (TAC), Malondialdehyde (MDA), Cytokeratin 18-M30 (CK-18 M30), Chemokine C-C motif ligand 2 (CCL2) and Tumour necrosis factor alpha (TNF-α) were measured at both baseline and the end of the study. Results Significant improvements in TAC were observed in the cranberry group and between the two groups (p = 0.006 and p = 0.011 respectively), but the changes in the placebo group were not significant (p = 0.325). There were no statistically significant differences in the serum levels of MDA, CK-18 M30, CCL2 and TNF-α between the cranberry and the placebo groups (p > 0.05). Conclusions It seems that daily consumption of cranberry supplement would be beneficial in increasing serum levels of TAC. Further studies are needed to investigate the effects of anti-inflammatory and antioxidant properties of cranberry on NAFLD. Trial registration : Iranian Registry of Clinical Trial. http://www.irct.ir: IRCT20150124020765N2, January 2019.