Mechanism of anti-dementia effects of mangiferin in a senescence accelerated mouse (SAMP8) model

Biosci Rep. 2019 Sep 20;39(9):BSR20190488. doi: 10.1042/BSR20190488. Print 2019 Sep 30.

Abstract

Mangiferin (2-β-d-glucopyranosyl-1,3,6,7-tetrahydroxy-9H-xanthen-9-one), a xanthanoid, is one of the major compounds isolated from mango leaves and bark fruit. Previous studies have identified several properties of mangiferin, such as preventing microbial growth, reducing oxidative stress and helping reduce risk of diabetes. The aim of the present study is to explore the potential anti-dementia effects of Mangiferin in a senescence-accelerated mouse prone 8 (SAMP8) mouse model. Morris water maze (MWM) test showed that mangiferin significantly improved the learning and memory retention in SAMP8 mice. In addition, mangiferin reduced the damage in hippocampal neurons and mitochondria, and decreased the expression of amyloid-β (Aβ1-40 and Aβ1-42); however, no influence on the expression of amyloid precursor protein (APP) within the brain of SAMP8 mice. Moreover, Mangiferin inhibited lipid peroxidation (LPO). In conclusion, we provided evidences to show that mangiferin significantly restored the learning and memory impairment in the SAMP8 mouse model, and reduced the pathological injury in hippocampal by modulating lipid oxidation and amyloid-β deposition in the brain.

Keywords: Alzheimer’s disease; Mangiferin; SAMP8; amyloid-β; free radical.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aging / genetics
  • Alzheimer Disease / drug therapy
  • Alzheimer Disease / pathology
  • Amyloid beta-Peptides / biosynthesis
  • Amyloid beta-Protein Precursor / biosynthesis
  • Animals
  • Dementia / drug therapy*
  • Dementia / prevention & control
  • Disease Models, Animal
  • Hippocampus / pathology
  • Lipid Peroxidation / drug effects
  • Male
  • Mangifera / chemistry
  • Maze Learning / drug effects*
  • Memory / drug effects*
  • Memory Disorders / drug therapy
  • Mice
  • Mitochondria / drug effects
  • Neurons / drug effects
  • Nootropic Agents / therapeutic use*
  • Oxidative Stress / drug effects
  • Xanthones / therapeutic use*

Substances

  • Amyloid beta-Peptides
  • Amyloid beta-Protein Precursor
  • Nootropic Agents
  • Xanthones
  • mangiferin