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What is associated with bronchial asthma?

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Asthma is associated with mast cells, eosinophils, and T lymphocytes. Mast cells are the allergy-causing cells that release chemicals like histamine. Histamine is the substance that causes nasal stuffiness and dripping in a cold or hay fever, constriction of airways in asthma, and itchy areas in a skin allergy. Eosinophils are a type of white blood cell associated with allergic disease. T lymphocytes are also white blood cells associated with allergy and inflammation. These cells, along with other inflammatory cells, are involved in the development of airway inflammation in asthma that contributes to the airway hyperresponsiveness, airflow limitation, respiratory symptoms, and chronic disease. In certain individuals, the inflammation results in the feelings of chest tightness and breathlessness that's felt often at night (nocturnal asthma) or in the early morning hours. Others only feel symptoms when they exercise (called exercise-induced asthma). Because of the inflammation, the airway hyperresponsiveness occurs as a result of specific triggers.

From: Bronchial Asthma WebMD Medical Reference

SOURCES: Smolley, L , New York, Dell, 1998. National Heart Lung and Blood Institute: "Expert Panel Report 3 (EPR 3): Guidelines for the Diagnosis and Management of Asthma." Global Initiative for Asthma Management and Prevention. NHLBI/WHO Workshop Report, U.S. Department of Health and Human Services. National Institutes of Health, Bethesda, 1995; Pub #95-3659. CDC: FastStats: "Asthma." American Academy of Allergy, Asthma & Immunology: "Trends in Allergic Disease."





. Breathe Right Now

Reviewed by Carol DerSarkissian on August 11, 2019

SOURCES: Smolley, L , New York, Dell, 1998. National Heart Lung and Blood Institute: "Expert Panel Report 3 (EPR 3): Guidelines for the Diagnosis and Management of Asthma." Global Initiative for Asthma Management and Prevention. NHLBI/WHO Workshop Report, U.S. Department of Health and Human Services. National Institutes of Health, Bethesda, 1995; Pub #95-3659. CDC: FastStats: "Asthma." American Academy of Allergy, Asthma & Immunology: "Trends in Allergic Disease."





. Breathe Right Now

Reviewed by Carol DerSarkissian on August 11, 2019

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What triggers bronchial asthma?

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