Immunology

Links between parents' and children's asthma and allergies

New research found that, compared with a father's traits related to allergies and asthma, a mother's traits create a higher risk that a child will develop these same traits in early childhood. By the time the children were ...

Diseases, Conditions, Syndromes

Health expenditures considerable for asthma, COPD in U.S. workers

(HealthDay)—The annualized total medical expenditures for asthma and chronic obstructive pulmonary disease (COPD) are $7 billion and $5 billion among U.S. workers, respectively, according to research published in the July ...

Health

Asthma and allergies more common in teens who stay up late

Teenagers who prefer to stay up late and wake later in the morning are more likely to suffer with asthma and allergies compared to those who sleep and wake earlier, according to a study published in ERJ Open Research.

Health

Meet the superusers who hold together health social media

New research by a multidisciplinary collaboration between Queen Mary University of London, Asthma UK Centre for Applied Research (AUKCAR) University of Edinburgh, University of Nottingham, University of Cambridge and charity ...

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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.

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