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Allergic reactions related to drugs are hypersensitivity responses driven by the immune system and bear no connection to the drug's therapeutic action. While drugs in isolation do not trigger an immune response, they can interact with endogenous proteins to form antigens. These antigens stimulate lymphocytes to produce antibodies. IgE-type antibodies attach themselves to mast cells. Upon subsequent exposure to the same stimulus, the antigen-antibody interaction is initiated, unleashing...
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Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
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Anaphylaxis: Mediators, Biomarkers, and Microenvironments.

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Identifying new biomarkers for anaphylaxis is crucial due to its life-threatening nature. This review explores various mediators, beyond traditional immune responses, for improved diagnosis and prevention of allergic reactions.

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Area of Science:

  • Immunology
  • Allergy
  • Biochemistry

Background:

  • Anaphylaxis is a severe allergic reaction with increasing incidence.
  • Current diagnostic methods, like serum tryptase, confirm reactions but cannot predict them.
  • The complex etiology and diverse clinical features of anaphylaxis complicate biomarker discovery.

Purpose of the Study:

  • To review potential biomarkers for anaphylaxis beyond the immune system.
  • To assess the utility of various molecular mediators in diagnosing and predicting anaphylaxis.
  • To understand the molecular basis of anaphylaxis for improved clinical practice.

Main Methods:

  • Comprehensive literature review of mediators implicated in anaphylaxis.
  • Analysis of molecular products including vasoactive agents, cytokines, and extracellular vesicles.
  • Examination of pathways beyond IgE-mediated mast cell activation.

Main Results:

  • Numerous molecular products are altered in anaphylaxis, including lipids, proteases, and microRNAs.
  • Research suggests involvement of alternative pathways, cell types, and systems.
  • No single biomarker currently predicts anaphylaxis, but diverse mediators show potential.

Conclusions:

  • Understanding broader biological processes and molecular pathways is key to identifying effective anaphylaxis biomarkers.
  • Future research should focus on a wider range of molecular mediators and systems.
  • Improved biomarkers will enhance anaphylaxis diagnosis, prevention, and clinical management.