Exposure to Air Pollution in Childhood Linked to Heart Disease Later

A new study, conducted by scientists from Stanford University, suggests that exposure to air pollution in early childhood alters genes in a way that can lead to heart disease later in life.Exposure to Air Pollution in Childhood Linked to Heart Disease Later

For the study, researchers recruited children of Hispanic descent aged between 6 and 8 from Fresno, California. The city has the highest pollution levels due to industrial agriculture and wildfires.

The scientists estimated exposure to air pollution for 1 day, 1 week, and 1, 3, 6, and 12 months prior to each participant visit and compared them to health and demographics questionnaires, blood pressure readings, and blood samples.

The analysis of the available data showed that exposure to fine particulate known as PM2.5, carbon monoxide, and ozone over time is associated with an alteration of DNA molecules that can change their activity without changing their sequence, and this change in gene expression may be passed down to future generations.

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