Showing posts with label bronchitis. Show all posts
Showing posts with label bronchitis. Show all posts

Sunday, February 20, 2011

Cigarette Smoke Ups Mucus in Lungs - in Pulmonology, Smoking & Tobacco from MedPage Toda

Cigarette smoke suppresses a protein whose normal function is to prevent an overpopulation of mucus-producing cells in the lungs, researchers reported.

Suppression of the so-called Bik protein leads to hyperplasia of airway epithelial cells and mucous cell metaplasia, according to Yohannes Tesfaigzi, PhD, of the Lovelace Respiratory Research Institute in Albuquerque, N.M., and colleagues.

The finding could lead to treatments for chronic bronchitis, Tesfaigzi and colleagues reported online in the American Journal of Respiratory and Critical Care Medicine.

Over-secretion of mucus is a characteristic of chronic bronchitis, which affects many cigarette smokers and is associated with chronic obstructive pulmonary disease, Tesfaigzi and colleagues noted.

Normally, mucus secretion increases in the airway epithelium in response to bacteria or viral infectious agents and environmental pollutants. An inflammatory response kickstarts the proliferation of epithelial cells that produce the protective substance.

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Friday, November 19, 2010

Bronchitis, Acute, Chronic, Respiratory, Pulmonary Conditions of the Lung, Legal Nursing Consultants, Medical/Legal Consulting

Bronchitis, Emedicine.com:"Acute bronchitis refers simply to inflammation of the tracheobronchial tree. The cause is usually infectious, but allergens and irritants can produce a similar clinical picture. Bronchitis typically occurs in the setting of an upper respiratory illness; thus, it is observed more frequently in the winter months. Asthma can be mistakenly diagnosed as acute bronchitis if the patient has no prior history of asthma. In one study, one third of patients who had been determined to have recurrent bouts of acute bronchitis were eventually identified as having asthma."
Emedicine.com Main Office
1004 Farnam Street, Suite 300 Omaha, Nebraska 68102
Office: 402-341-3222 Fax: 402-341-3336
edit@eMedicine.com
http://www.emedicine.com/emerg/TOPIC69.HTM

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Bronchitis Overview, emedicinehealth.com:"Bronchitis is an acute inflammation of the air passages within the lungs. It occurs when the trachea (windpipe) and the large and small bronchi (airways) within the lungs become inflamed because of infection or other causes. The thin mucous lining of these airways can become irritated and swollen. The cells that make up this lining may leak fluids in response to the inflammation."
http://www.emedicinehealth.com/bronchitis/article_em.htm

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Bronchitis, What Causes Bronchitis? The Nemours Foundation:"Acute bronchitis is usually caused by viruses, and it may occur together with or following a cold or other respiratory infection. Germs such as viruses can be spread from person to person by coughing. They can also be spread if you touch your mouth, nose, or eyes after coming into contact with respiratory fluids from an infected person. Smoking (even for a brief time) and being around tobacco smoke, chemical fumes, and other air pollutants for long periods of time puts a person at risk for developing chronic bronchitis."
http://www.kidshealth.com/teen/infections/common/bronchitis.html

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Bronchitis, Signs and symptoms, mayoclinic.com:"A cough that brings up yellowish-gray or green mucus (sputum) is one of the main signs of bronchitis. Mucus itself isn't abnormal — your airways normally produce up to several tablespoons of mucus secretions every day. But these secretions usually don't accumulate, because they're continuously cleared into your throat and swallowed with your saliva. When the main air passageways in your lungs (bronchial tubes) are inflamed, they often produce large amounts of discolored mucus that comes up when you cough. If this persists for more than three months, it is referred to as chronic bronchitis. Mucus that isn't white or clear usually means there's a secondary infection."
Mayo Clinic
200 First St. S.W.
Rochester, MN 55905
Contact by E-mail
http://www.mayoclinic.com/health/bronchitis/DS00031/DSECTION=2

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