Immunology

Adipose hormone may play role in obesity-related asthma

New research suggests a hormone released from fat tissue is critical in the development of obesity-related asthma and may be a target of future treatments for the disease. The findings will be presented Saturday, March 23 ...

Immunology

Analgesics in pregnancy do not seem to cause offspring asthma

(HealthDay)—Analgesics taken during pregnancy, including opioids, antimigraine drugs, and paracetamol, do not appear to cause asthma, according to a study published online March 17 in the European Respiratory Journal.

Immunology

Eating fish may help prevent asthma

A James Cook University scientist says an innovative study has revealed new evidence that eating fish can help prevent asthma.

Obstetrics & gynaecology

Further evidence of the dangers of smoking in pregnancy

Smoking during pregnancy is understood to pose risks to both baby and mother. Now, new research led by the University of Glasgow has found further evidence that maternal smoking poses a risk to baby and child health.

Immunology

New findings may help guide treatment of patients with asthma

Asthma patients often undergo tests involving inhaled methacholine, a drug that can cause narrowing of the airways, similar to what occurs in asthma. In a Respirology analysis of data on patients undergoing such tests, obesity ...

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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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