Hydrogen-rich saline improves memory function in a rat model of amyloid-beta-induced Alzheimer's disease by reduction of oxidative stress

Brain Res. 2010 Apr 30;1328:152-61. doi: 10.1016/j.brainres.2010.02.046. Epub 2010 Feb 19.

Abstract

This study is to examine if hydrogen-rich saline reduced amyloid beta (Abeta) induced neural inflammation, and learning and memory deficits in a rat model. S-D male rats (n=84, 280-330g) were divided into three groups, sham-operated, Abeta1-42 injected and Abeta1-42 plus hydrogen-rich saline-treated animals. Hydrogen-rich saline (5ml/kg, i.p., daily) was injected for 14days after intracerebroventricular injection of Abeta1-42. The levels of MDA, IL-6 and TNF-alpha were assessed by biochemical and ELISA analysis. Morris Water Maze and open field task were used to assess the memory dysfunction and motor dysfunction, respectively. LTP were used to detect the electrophysiology changes, HNE and GFAP immunohistochemistry were used to assess the oxidative stress and glial cell activation. After Abeta1-42 injection, the levels of MDA, IL-6, and TNF-alpha were increased in brain tissues and hydrogen-rich saline treatment suppressed MDA, IL-6, and TNF-alpha concentration. Hydrogen-rich saline treatment improved Morris Water Maze and enhanced LTP in hippocampus blocked by Abeta1-42. Furthermore, hydrogen-rich saline treatment also decreased the immunoreactivitiy of HNE and GFAP in hippocampus induced by Abeta1-42. In conclusion, hydrogen-rich saline prevented Abeta-induced neuroinflammation and oxidative stress, which may contribute to the improvement of memory dysfunction in this rat model.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alzheimer Disease / chemically induced
  • Alzheimer Disease / drug therapy*
  • Alzheimer Disease / physiopathology*
  • Amyloid beta-Peptides / antagonists & inhibitors
  • Amyloid beta-Peptides / toxicity
  • Animals
  • Brain / drug effects
  • Brain / metabolism
  • Brain / physiopathology
  • Disease Models, Animal
  • Encephalitis / chemically induced
  • Encephalitis / drug therapy
  • Encephalitis / physiopathology
  • Free Radical Scavengers / pharmacology
  • Free Radical Scavengers / therapeutic use
  • Glial Fibrillary Acidic Protein
  • Hydrogen / pharmacology*
  • Hydrogen / therapeutic use
  • Injections, Intraventricular
  • Interleukin-6 / metabolism
  • Long-Term Potentiation / drug effects
  • Long-Term Potentiation / physiology
  • Male
  • Maze Learning / drug effects
  • Maze Learning / physiology
  • Memory Disorders / chemically induced
  • Memory Disorders / drug therapy*
  • Memory Disorders / physiopathology*
  • Oxidative Stress / drug effects*
  • Oxidative Stress / physiology
  • Peptide Fragments / antagonists & inhibitors
  • Peptide Fragments / toxicity
  • Rats
  • Rats, Sprague-Dawley
  • Sodium Chloride / pharmacology*
  • Sodium Chloride / therapeutic use
  • Treatment Outcome
  • Tumor Necrosis Factor-alpha / drug effects
  • Tumor Necrosis Factor-alpha / metabolism

Substances

  • Amyloid beta-Peptides
  • Free Radical Scavengers
  • Glial Fibrillary Acidic Protein
  • Interleukin-6
  • Peptide Fragments
  • Tumor Necrosis Factor-alpha
  • amyloid beta-protein (1-42)
  • Sodium Chloride
  • Hydrogen