Immunology

CDC: Asthma visit rates decreased from 2001 to 2016

(HealthDay)—Asthma is a common reason for physician visits, although the rate of asthma visits decreased from 2001 through 2016, according to a report published Sept. 20 by the U.S. Centers for Disease Control and Prevention ...

Health

Study suggests flavored e-cigarettes may worsen asthma

A study into the impact of flavoured e-cigarettes, on allergic airways disease, suggests that some flavours may worsen the severity of diseases such as asthma. For the first time a model of asthma was used to investigate ...

Medical research

In human cells and mice, a cure for the common cold, study reports

Temporarily disabling a single protein inside our cells might be able to protect us from the common cold and other viral diseases, according to a study led by researchers at Stanford University and University of California-San ...

Pediatrics

When is a child an adult?

When does childhood end? That's the question international researchers are asking as they chart age cut-offs for paediatric services around the world.

Diseases, Conditions, Syndromes

Self-monitoring solution in mobile app can help uncontrolled asthma

A study by researchers at Karolinska Institutet shows that a treatment-adjustment algorithm based on lung function and symptoms in a mobile phone is useful for managing uncontrolled asthma. For fuss-free measuring of lung ...

Medical research

Microbiota in home indoor air may protect children from asthma

Large amounts of a certain type of bacteria, most likely from outdoors, may reduce the child's risk of developing asthma. This was shown by a new study by the Finnish Institute for Health and Welfare (THL) that analyzed the ...

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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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