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Related Experiment Videos

Aspirin and asthma.

K S Babu1, S S Salvi

  • 1Department of Respiratory Cell and Molecular Biology, University of Southampton, Southampton General Hospital, Southampton, UK. ksb@soton.ac.uk

Chest
|November 18, 2000
PubMed
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Aspirin-induced asthma (AIA) affects 5-6% of people, with 20% of asthmatics sensitive to NSAIDs. Understanding AIA pathogenesis and management is crucial for patient care.

Area of Science:

  • Pharmacology and Immunology
  • Respiratory Medicine

Background:

  • Aspirin is a widely used analgesic and increasingly used for preventing ischemic heart disease and strokes.
  • Aspirin intolerance affects 5-6% of the general population, with up to 20% of asthmatics exhibiting sensitivity.
  • Aspirin-induced asthma (AIA) is characterized by rhinitis, sinusitis, and asthma upon exposure to NSAIDs.

Purpose of the Study:

  • To review the latest understanding of the pathogenesis, clinical features, and management of aspirin-induced asthma (AIA).

Main Methods:

  • Review of existing literature on aspirin intolerance and aspirin-induced asthma.
  • Discussion of the roles of the lipoxygenase (LO) and cyclooxygenase (COX) pathways in AIA pathogenesis.
  • Examination of the efficacy of LT-modifying drugs and aspirin desensitization in managing AIA.

Related Experiment Videos

Main Results:

  • Aspirin inhibits the COX pathway, shunting arachidonic acid to the LO pathway.
  • This leads to decreased prostaglandin E(2) and increased cysteinyl leukotrienes (LTs) synthesis.
  • Elevated LTC(4) synthase activity in bronchial biopsies of AIA patients promotes inflammation.

Conclusions:

  • LT-modifying drugs effectively block aspirin-induced bronchoconstriction and are used in AIA treatment.
  • Aspirin desensitization is a valuable management strategy for AIA, particularly for patients requiring thromboembolic prophylaxis.
  • This review synthesizes current knowledge on AIA, aiding in clinical decision-making and patient management.