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Nasal Mucosal Mast Cell Degranulation

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Human nasal mast cells stimulated to undergo in situ degranulation by reversed or passive anaphylaxis are morphologically distinct from resting (unstimulated) cells and exhibit sequential changes that are enumerable by electron microscopy. The initially amorphous, dense-staining matrix of secretory granules is not extruded during degranulation. Instead, solubilization of the granule matrix results in the sequential evolution of scroll-like, reticular (rope-like), and particulate constituents. Largely degranulated mast cells may lack typical secretory granules and are, therefore, identifiable only by high power electron microscopy.
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Document Type: Research Article

Affiliations: Georgetown University Medical Center, Division of Molecular Virology & Immunology, 5640 Fishers Lane, Rockville, MD 20852; National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20205

Publication date: 01 March 1984

More about this publication?
  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

    Articles marked "F" offer free full text for personal noncommercial use only.

    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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