Ads
related to: risk factors of bronchial asthma
Search results
Results From The WOW.Com Content Network
The mechanisms behind allergic asthma—i.e., asthma resulting from an immune response to inhaled allergens—are the best understood of the causal factors. In both people with asthma and people who are free of the disease, inhaled allergens that find their way to the inner airways are ingested by a type of cell known as antigen-presenting ...
The strongest risk factor for developing asthma is a history of atopic disease; [66] with asthma occurring at a much greater rate in those who have either eczema or hay fever. [80] Asthma has been associated with eosinophilic granulomatosis with polyangiitis (formerly known as Churg–Strauss syndrome), an autoimmune disease and vasculitis . [ 81 ]
Stressors related to neighborhood violence and safety, behavioral risk factors, and lack of access to adequate medications and healthcare also contribute to an increased prevalence of asthma. Low income alone accounts for a significant increase in poor asthma outcomes, including severity, lung function, and morbidity rates.
Asthma triggers are factors or stimuli that provoke the exacerbation of asthma symptoms or increase the degree of airflow disruption, which can lead to an asthma attack. [1] An asthma attack is characterized by an obstruction of the airway , hypersecretion of mucus and bronchoconstriction due to the contraction of smooth muscles around the ...
Atopy, reduced lung function, and respiratory infections in infants with wheeze are risk factors for asthma persistence into adulthood, and a lower lung function and greater magnitude of atopy at this age is associated with more severe disease. [5] Severe atopic asthma is also additionally amenable to anti-immunoglubulin E (IgE) therapy. [4]
Sensitizer-induced occupational asthma is an immunologic form of asthma which occurs due to inhalation of specific substances (i.e., high-molecular-weight proteins from plants and animal origins, or low-molecular-weight agents that include chemicals, metals and wood dusts) and occurs after a latency period of several weeks to years. [1]