Reviewed by Barry J. Make, , Irina Petrache,

Understanding COPDChronic Bronchitis is a disease, often call Chronic Obstructive Pulmonary Disease (COPD). A person with COPD may have either emphysema or chronic bronchitis, but many have both. Some people with COPD may also have asthma.

Let’s take a look inside the lungs to see what is happening. Look at the healthy airway. Air moves in and out of the middle of the airway. Now look at the airway of chronic bronchitis. In chronic bronchitis, the airway walls are swollen and produce more mucus. In chronic bronchitis a person has a chronic productive cough. This is often due to cigarette smoking.


Programs & Services

Clinical Trials

Age Dependent Effects of Cigarette Smoke in Humans

Mouse testing has shown  that smoke exposure affects certain cells differently in the lung depending on age. This study is designed to test this effect in humans.

If you meet the initial phone screening qualifications, your study participation will consist of 2 or 3 visits to National Jewish Health''s main campus. This study requires each participant to undergo a bronchoscopy procedure at the last visit. 

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