title: Inflammation, Iron, Energy Failure, and Oxidative Stress in the Pathogenesis of Multiple Sclerosis.
abstract: Multiple sclerosis is a chronic inflammatory demyelinating disease of the central nervous system. Different trigger pathologies have been suggested by the primary cytodegenerative "inside-out" and primary inflammation-driven "outside-in" hypotheses. Recent data indicate that mitochondrial injury and subsequent energy failure are key factors in the induction of demyelination and neurodegeneration. The brain weighs only a few percent of the body mass but accounts for approximately 20% of the total basal oxygen consumption of mitochondria. Oxidative stress induces mitochondrial injury in patients with multiple sclerosis and energy failure in the central nervous system of susceptible individuals. The interconnected mechanisms responsible for free radical production in patients with multiple sclerosis are as follows: (i) inflammation-induced production of free radicals by activated immune cells, (ii) liberation of iron from the myelin sheets during demyelination, and (iii) mitochondrial injury and thus energy failure-related free radical production. In the present review, the different sources of oxidative stress and their relationships to patients with multiple sclerosis considering tissue injury mechanisms and clinical aspects have been discussed.
authors.affiliation: Department of Neuroimmunology, Center for Brain Research and Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria.
authors.forename: Lukas
authors.initials: L
authors.lastname: Haider
mesh_terms: D001921:Brain / Q000378:metabolism; D004734:Energy Metabolism; D006801:Humans; D007249:Inflammation / Q000473:pathology*; D007501:Iron / Q000378:metabolism; D008928:Mitochondria / Q000378:metabolism; D009103:Multiple Sclerosis / Q000378:metabolism / Q000473:pathology*; D009186:Myelin Sheath / Q000378:metabolism; D018384:Oxidative Stress
chemical_list: D007501:Iron