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Air Pollution and Multiple Sclerosis: A Comprehensive Review Publisher Pubmed



Abbaszadeh S1 ; Tabary M2 ; Aryannejad A2 ; Abolhasani R3 ; Araghi F4 ; Khaheshi I5 ; Azimi A6
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Authors Affiliations
  1. 1. Students Research Committee, School of Medicine, Arak University of Medical Sciences, Arak, Iran
  2. 2. Experimental Medicine Research Center, Tehran University of Medical Sciences, Tehran, 13145-784, Iran
  3. 3. School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. Cardiovascular Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  6. 6. Multiple Sclerosis Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Neurological Sciences Published:2021


Abstract

Multiple sclerosis (MS) is an inflammatory, autoimmune demyelinating disorder of the central nervous system (CNS), leading to progressive functional impairments, and many intrinsic and acquired factors are believed to be associated with its development and relapse. In terms of environmental factors, air pollution has gained much attention during recent decades, as chronic exposure to ambient air pollution seems to increase the level of some pro-inflammatory markers in the human brain, which can lead to neuroinflammation, neurodegeneration, and blood–brain barrier (BBB) breakdown. These events may also be associated with the risk of MS development and relapse. In this review, we aimed to summarize recent findings around the impact of air pollutants, including particulate matter (PM10, PM2.5, and ultra-fine particles), gaseous pollutants (carbon monoxide [CO], nitrogen oxides [NOx], sulfur dioxide [SO2], and ozone [O3]), and heavy metals, on MS development and relapse. © 2021, Fondazione Societa Italiana di Neurologia.
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