Air pollution interacts with genetic risk to influence cortical networks implicated in depression

Air pollution is a reversible cause of significant global mortality and morbidity. Epidemiological evidence suggests associations between air pollution exposure and impaired cognition and increased risk for major depressive disorders. However, the neural bases of these associations have been unclear...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Proceedings of the National Academy of Sciences - PNAS Jg. 118; H. 46
Hauptverfasser: Li, Zhi, Yan, Hao, Zhang, Xiao, Shah, Shefali, Yang, Guang, Chen, Qiang, Han, Shizhong, Zhang, Dai, Weinberger, Daniel R, Yue, Weihua, Tan, Hao Yang
Format: Journal Article
Sprache:Englisch
Veröffentlicht: United States 16.11.2021
Schlagworte:
Adult
Air Pollutants - adverse effects
Air Pollution - adverse effects
Anxiety - chemically induced
Brain - drug effects
Depression - chemically induced
Environmental Exposure - adverse effects
Humans
Particulate Matter - adverse effects
Risk Factors
gene–environment interaction
fine particulate matter
major depressive disorder
PM2.5
polygenic risk
ISSN:1091-6490, 1091-6490
Online-Zugang:Weitere Angaben
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Air pollution is a reversible cause of significant global mortality and morbidity. Epidemiological evidence suggests associations between air pollution exposure and impaired cognition and increased risk for major depressive disorders. However, the neural bases of these associations have been unclear. Here, in healthy human subjects exposed to relatively high air pollution and controlling for socioeconomic, genomic, and other confounders, we examine across multiple levels of brain network function the extent to which particulate matter (PM ) exposure influences putative genetic risk mechanisms associated with depression. Increased ambient PM exposure was associated with poorer reasoning and problem solving and higher-trait anxiety/depression. Working memory and stress-related information transfer (effective connectivity) across cortical and subcortical brain networks were influenced by PM exposure to differing extents depending on the polygenic risk for depression in gene-by-environment interactions. Effective connectivity patterns from individuals with higher polygenic risk for depression and higher exposures with PM , but not from those with lower genetic risk or lower exposures, correlated spatially with the coexpression of depression-associated genes across corresponding brain regions in the Allen Brain Atlas. These converging data suggest that PM exposure affects brain network functions implicated in the genetic mechanisms of depression.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1091-6490
1091-6490
DOI:10.1073/pnas.2109310118