In the largest study of its kind, researchers at the Southwest Foundation for Biomedical Research have found that exposure to cigarette smoke can alter gene expression — the process by which a gene’s information is converted into the structures and functions of a cell. These alterations in response to smoking appear to have a wide-ranging negative influence on the immune system, and a strong involvement in processes related to cancer, cell death and metabolism.
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Smoking influences gene function, scientists say
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