Prolonged Exposure to Air Pollution Linked to Negative Genetic Changes in Mice

Air pollution — consistently being shown to be a pretty significant issue to public health.

Prolonged exposure to particulate matter in air pollution in the Los Angeles Basin triggered inflammation and the appearance of cancer-related genes in the brains of rats, a Cedars-Sinai study has found.

While previous research has documented the association between air pollution and a variety of diseases, including cancer, the study found markers indicating certain materials in coarse air pollution — nickel, in particular — may play a role in genetic changes related to disease development, said Julia Ljubimova, MD, PhD.

Ljubimova, director of the Nanomedicine Research Center at Cedars-Sinai, is the lead author of the paper, published April 9 in Scientific Reports.

“This study, which looked at novel data gathered in the Los Angeles area, has significant implications for the assessment of air quality in the region, particularly as people are exposed to air pollution here for decades,” Ljubimova said.