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Curr Opin Immunol. 2019 Aug 27;60:156-162. doi: 10.1016/j.coi.2019.07.010. [Epub ahead of print]

Interactions between environmental pollutants and genetic susceptibility in asthma risk.

Author information

1
Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States.
2
Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.
3
Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States. Electronic address: Gurjit.Hershey@cchmc.org.

Abstract

Exposure to air pollution is associated with enhanced risk of developing asthma, notably in the presence of genetic risk factors. Interaction analyses have shown that both outdoor and indoor air pollution interact with genetic variability to increase the incidence of asthma. In this review, we summarize recent progress in candidate gene-based studies, as well as genome-wide gene-air pollution interaction studies. Advances in epigenetics have provided evidence for DNA methylation as a mediator in gene-air pollution interactions. Emerging strategies for study design and statistical analyses may improve power in future studies. Improved air pollution exposure assessment methods and asthma endo-typing can also be expected to increase the ability to detect biologically driven gene-air pollution interaction effects.

PMID:
31470287
DOI:
10.1016/j.coi.2019.07.010

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