Hepatoprotective and anti-inflammatory effects of a standardized pomegranate (Punica granatum) fruit extract in high fat diet-induced obese C57BL/6 mice

Int J Food Sci Nutr. 2021 Jun;72(4):499-510. doi: 10.1080/09637486.2020.1849041. Epub 2020 Nov 18.

Abstract

Diets rich in fats are linked to elevated systemic inflammation, which augments the progression of inflammatory-related disorders including non-alcoholic fatty liver disease (NAFLD) and neurodegenerative diseases. A phenolic-enriched pomegranate fruit extract (PE) was investigated for its hepatoprotective and anti-inflammatory effects in male C57BL/6 mice fed either a high-fat diet or a standard rodent diet with or without 1% of PE for 12 weeks. Mouse livers and hippocampi were evaluated for the expression of genes associated with NAFLD and inflammation by multiplexed gene analysis. PE alleviated diet-induced fatty liver and suppressed hepatic lipid regulating genes including Cd36, Fas, Acot2 and Slc27a1. In addition, PE suppressed gene expression of pro-inflammatory cytokines including Il-1α, Il-7, Il-11, Ifnα, Tnfα and Lepr in the hippocampi. Our findings support the protective effects of PE against high-fat diet-induced hepatic and neurological disease.

Keywords: Pomegranate (Punica granatum);; anti-neuroinflammation; hepatoprotection;; high-fat diet;; non-alcoholic fatty liver disease (NAFLD);.

MeSH terms

  • Adipose Tissue / metabolism
  • Alzheimer Disease
  • Animals
  • Anti-Inflammatory Agents / pharmacology*
  • Cytokines / metabolism
  • Diet, High-Fat / adverse effects*
  • Fatty Liver / drug therapy
  • Fruit / chemistry*
  • Gene Expression
  • Inflammation
  • Lipid Metabolism / drug effects
  • Lipids
  • Liver / drug effects*
  • Liver / metabolism
  • Liver / pathology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Non-alcoholic Fatty Liver Disease / drug therapy
  • Obesity / chemically induced
  • Obesity / drug therapy*
  • Phenols / pharmacology
  • Plant Extracts / pharmacology*
  • Pomegranate / chemistry*

Substances

  • Anti-Inflammatory Agents
  • Cytokines
  • Lipids
  • Phenols
  • Plant Extracts