Asthma

Smoking cannabis linked to respiratory problems

People who smoke cannabis as little as once a week are more likely to suffer respiratory symptoms such as morning cough, bringing up phlegm, and wheezing, according to University of Otago research.

May 19, 2015
popularity 46 comments 1

Anti-smoking commercials burn out over time

The massive, federally funded anti-smoking campaign "Tips From Former Smokers"—"Tips" for short—fizzled more than it popped. That's the conclusion behind research published this week in the American Jo ...

May 19, 2015
popularity 22 comments 0

Drug target for asthma discovered

The over-active immune cells responsible for asthma depend on the gene BCL11B to develop into mature cells, according to a study published in the Journal of Experimental Medicine. The identification of thi ...

May 13, 2015
popularity 48 comments 0

Link between vitamin E and exposure to air pollution

A new study from King's College London and the University of Nottingham has found an association between the amount of vitamin E in the body, exposure to particulate pollution and lung function. The paper adds to growing ...

May 14, 2015
popularity 15 comments 0

Educating the immune system to prevent allergies

With the arrival of spring, millions of Canadians have begun their annual ritual of sneezing and wheezing due to seasonal allergies. A research team at the Montreal Children's Hospital from the Research Institute ...

May 14, 2015
popularity 75 comments 1

Asthma (from the Greek άσθμα, ásthma, "panting") is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic).

It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist (such as salbutamol). Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred.

Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970s. As of 2010, 300 million people were affected worldwide. In 2009 asthma caused 250,000 deaths globally. Despite this, with proper control of asthma with step down therapy, prognosis is generally good.

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

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