A Review of Respirable Fine Particulate Matter (PM)-induced Brain Damage

Overview

Journal Front Mol Neurosci

Specialty Molecular Biology

Date 2022 Sep 26

PMID 36157076

Authors

Wei Li

Guohui Lin

Zaixing Xiao

Yichuan Zhang

Bin Li

Yu Zhou

Yong Ma

Erqing Chai

Affiliations

Soon will be listed here.

Abstract

Respirable fine particulate matter (PM) has been one of the most widely publicized indicators of pollution in recent years. Epidemiological studies have established a strong association between PM, lung disease, and cardiovascular disease. Recent studies have shown that PM is also strongly associated with brain damage, mainly cerebrovascular damage (stroke) and neurological damage to the brain (changes in cognitive function, dementia, psychiatric disorders, etc.). PM can pass through the lung-gas-blood barrier and the "gut-microbial-brain" axis to cause systemic oxidative stress and inflammation, or directly enter brain tissue the olfactory nerve, eventually damaging the cerebral blood vessels and brain nerves. It is worth mentioning that there is a time window for PM-induced brain damage to repair itself. However, the exact pathophysiological mechanisms of brain injury and brain repair are not yet fully understood. This article collects and discusses the mechanisms of PM-induced brain injury and self-repair after injury, which may provide new ideas for the prevention and treatment of cerebrovascular and cerebral neurological diseases.

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