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The map and global disease burden of chronic liver diseases are markedly changing, with non-alcoholic fatty liver disease (NAFLD) becoming the most common cause of liver affection coinciding with the current epidemics of obesity, type 2 diabetes, and metabolic syndrome. Understanding the incidence and prevalence of NAFLD is critical because of its linkage to a significant economic burden of hospitalization and changing patterns in consequences such as liver transplantation. Moreover, the long-term average healthcare expenses of NAFLD patients have exceeded those of other liver diseases. To lessen the imminent burden of NAFLD, immediate actions to raise worldwide awareness and address metabolic risk factors are required. This review summarizes key data about the global disease burden of NAFLD, modifiable and non-modifiable risk factors, and current preventive approaches.

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Aim: The aim was to investigate the expression profile of miR-516a-3P and its correlation with the  PNPLA3 rs738409 polymorphism in Egyptian hepatitis C virus (HCV) and hepatocellular carcinoma (HCC) patients. Materials & methods: miR-516a-3P was quantified and rs738409 was genotyped by quantitative reverse transcription PCR. Results: miR-516a-3P was significantly upregulated in HCC patients compared with HCV patients (p = 0.001). Receiver operating characteristic curve analysis confirmed that miR-516a-3P discriminates HCC from HCV (p = 0.001). A significant (p = 0.015) correlation between miR-516a-3p level and PNPLA3 rs738409 genotypes was recorded in HCV patients, yet it was not recorded in either healthy individuals or HCC patients. miR-516a-3p level was significantly (p = 0.001) higher in HCV patients carrying the rs738409 GG genotype than in those carrying the CC genotype. Conclusion: miR-516a-3P is a potential biomarker in HCC. PNPLA3 rs738409 GG carriers affect miR-516a-3P expression in HCV, and this may highlight a new mechanism in liver disease.

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