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Cigarette smoking is the major risk factor for chronic obstructive pulmonary disease (COPD, commonly known as chronic bronchitis and emphysema). Despite this clear link, only 15-20% of smokers develop COPD suggesting that genetic factors affect the lung's susceptibility to the stress of cigarette smoke. The cells lining the airways (epithelium) and cells that help defend the lung (alveolar macrophages) of smokers develop gene expression changes that are different from that of nonsmokers. In the investigators' previous studies they have demonstrated that there are greater than 200 genes that are responsive to cigarette smoke in these cells. But the investigators do not know whether the gene expression is static or changes as a function of time. Genes that show significant changes over time may be relevant to the progression of the disease. Even though quitting smoking reduces the rate at which the lungs decline, many-smokers still go on to develop COPD. This study will provide insights into the natural history of smoking-related gene expression of the lung cells in health and disease.
Observational Model: Case Control, Time Perspective: Prospective
Chronic Obstructive Pulmonary Disease
Weill Cornell Medical College and Weill Cornell Medical Center, Department of Genetic Medicine
Weill Medical College of Cornell University
Published on BioPortfolio: 2014-07-23T21:13:24-0400
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COPD (chronic obstructive pulmonary disease)
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Pulmonary relating to or associated with the lungs eg Asthma, chronic bronchitis, emphysema, COPD, Cystic Fibrosis, Influenza, Lung Cancer, Pneumonia, Pulmonary Arterial Hypertension, Sleep Disorders etc Follow and track Lung Cancer News ...
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