Prevention of neurodegenerative damage to the brain in rats in experimental Alzheimer's disease by adaptation to hypoxia.

Neuroscience and Behavioral Physiology
E B ManukhinaI Yu Malyshev

Abstract

We report here studies addressing the possibility of preventing neurodegenerative changes in the brain using adaptation to periodic hypoxia in rats with experimental Alzheimer's disease induced by administration of the neurotoxic peptide fragment of beta-amyloid (Ab) into the basal magnocellular nucleus. Adaptation to periodic hypoxia was performed in a barochamber (4000 m, 4 h per day, 14 days). The following results were obtained 15 days after administration of Ab. 1. Adaptation to periodic hypoxia significantly blocked Ab-induced memory degradation in rats, as assessed by testing a conditioned passive avoidance reflex. 2. Adaptation to periodic hypoxia significantly restricted increases in oxidative stress, measured spectrophotometrically in the hippocampus in terms of the content of thiobarbituric acid-reactive secondary lipid peroxidation products. 3. Adaptation to periodic hypoxia completely prevented the overproduction of NO in the brains of rats with experimental Alzheimer's disease, as measured in terms of increases in tissue levels of stable NO metabolites, i.e., nitrites and nitrates. 4. The cerebral cortex of rats given Ab injections after adaptation to periodic hypoxia did not contain neurons with pathomorphologica...Continue Reading

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Citations

Mar 29, 2014·Experimental Biology and Medicine·Alexander A PaltsynAslan A Kubatiev
May 12, 2017·American Journal of Physiology. Regulatory, Integrative and Comparative Physiology·Myoung-Gwi RyouMarianna E Jung
Aug 6, 2018·Journal of Cellular Physiology·Wenqiang Wei, Shaoping Ji
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Jun 18, 2021·Vascular Health and Risk Management·Robert T MalletMartin Burtscher

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