Protective effects of hydroalcoholic extracts from an ancient apple variety 'Mela Rosa dei Monti Sibillini' against renal ischemia/reperfusion injury in rats

Food Funct. 2019 Nov 1;10(11):7544-7552. doi: 10.1039/c9fo01635j. Epub 2019 Nov 5.

Abstract

The purpose of this work was to investigate the effect of hydroalcoholic extracts from the peel (APE) and pulp (APP) of a traditional apple variety of central Italy, the 'Mela Rosa dei Monti Sibillini', on the damage caused by renal ischemia/reperfusion injury (IRI) in rats. Thirty mg per kg b.w. of the extracts were administered intraperitoneally to male adult Wistar rats 3 days before the induction of IRI by pedicle clamping. A significant decrease in the levels of malondialdehyde (MDA), tumor necrosis factor-α (TNFα), interleukin 1 beta (IL-1β) and nuclear factor-κB (NF-κB) was observed in the groups pre-treated with APE when compared with IRI rats. The chemical composition of APE was determined by HPLC-DAD-MSn highlighting a significant amount of proanthocyanidins (52.9 mg g-1), flavonols (42.27 mg g-1) and dihydrochalcones (11.75 mg g-1). These findings indicated that this ancient apple variety is a promising source of nutraceuticals and functional foods helpful to manage complications of renal disorders.

MeSH terms

  • Animals
  • Anti-Inflammatory Agents / chemistry
  • Anti-Inflammatory Agents / pharmacology
  • Down-Regulation
  • Fruit / chemistry*
  • Inflammation / drug therapy
  • Kidney Diseases / drug therapy*
  • Kidney Diseases / etiology*
  • Male
  • Malus / chemistry*
  • NF-kappa B / genetics
  • NF-kappa B / metabolism
  • Plant Extracts / chemistry
  • Plant Extracts / pharmacology*
  • Rats
  • Rats, Wistar
  • Reperfusion Injury / drug therapy*

Substances

  • Anti-Inflammatory Agents
  • NF-kappa B
  • Plant Extracts