Medications

Vitamin D supplements do not reduce asthma exacerbations overall

Vitamin D supplementation does not reduce the risk for asthma exacerbation in children overall, but does reduce the risk in those with low serum 25-hydroxyvitamin D (25[OH]D) concentrations, according to a review recently ...

Inflammatory disorders

Obesity-related gut damage may worsen asthma symptoms

Changes in gut function caused by weight gain are associated with an increase in asthma severity, according to research to be presented at the Society for Endocrinology annual conference in Harrogate.

Diseases, Conditions, Syndromes

New study identifies sexual activity as asthma trigger

When people with asthma wonder what forms of exercise might cause an asthma flare, they may not take sexual relations into account. A new study being presented at this year's American College of Allergy, Asthma and Immunology ...

Psychology & Psychiatry

Parent's mental health can affect kids' asthma care

When a parent is depressed, their child's asthma care may suffer. Now, research suggests that getting a child's asthma under control may include assessing a parents' mental health.

Pediatrics

Tool helps ID young children at high risk for asthma

The CHILDhood Asthma Risk Tool (CHART) can identify children at high risk for asthma at as early as 3 years of age, according to a study published online Oct. 6 in JAMA Network Open.

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Asthma

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