News tagged with asthma

Related topics: children · allergy · lung function · american journal of respiratory and critical care medicine · new england journal of medicine

Dusty secrets could help asthma sufferers

Researchers in the University of Arizona's BIO5 Institute have entered into a collaboration with Johnson & Johnson Consumer & Personal Products and Janssen Biotech Inc. to leverage foundational discovery research aimed at ...

Jun 11, 2015
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Statins have benefits for asthma sufferers

Statins continue to show that their benefits extend beyond their original focus of lowering high cholesterol. With the increasing prevalence of asthma, scientists are studying the effects of statins in the lungs. In a new ...

May 26, 2015
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Asthma is a chronic inflammation of the lungs in which the airways (bronchi) are reversibly narrowed. Asthma affects 7% of the population, and 300 million worldwide. During attacks (exacerbations), the smooth muscle cells in the bronchi constrict, and the airways become inflamed and swollen. Breathing becomes difficult, and asthma causes 4,000 deaths a year in the U.S. Attacks can be prevented by avoiding triggering factors and by drug treatment. Drugs are used for acute attacks, commonly inhaled β2-agonists. In more serious cases, drugs are used for long-term prevention, starting with inhaled corticosteroids, and then long-acting β2-agonists if necessary. Leukotriene antagonists are less effective than corticosteroids but have no side effects. Monoclonal antibodies such as mepolizumab and omalizumab are sometimes effective. Prognosis is good with treatment.

In contrast to chronic obstructive pulmonary disease and chronic bronchitis, the inflammation of asthma is reversible. In contrast to emphysema, asthma affects the bronchi, not the alveoli.

The National Heart, Lung and Blood Institute defines asthma as a common chronic disorder of the airways characterized by variable and recurring symptoms, airflow obstruction, bronchial hyperresponsiveness (bronchospasm), and an underlying inflammation.

Public attention in the developed world has recently focused on asthma because of its rapidly increasing prevalence, affecting up to one in four urban children.

This text uses material from Wikipedia, licensed under CC BY-SA

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