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Dual-Phase Response Model for Bronchial Asthma

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The authors have successfully developed an animal model of dual-phase bronchial responses and very high IgG titer by sensitizing Hartley-strain male guinea pigs. Specific airway resistance, which was determined in a two-chamber body plethysmograph, was elevated to sevenfold during immediate response, followed by a late phase response with a smaller but marked elevation in resistance. Furthermore, hematological and histological examinations revealed that the total cell count increased in BAL obtained during both immediate and late bronchial responses as compared to pre-OVA challenges. A significant increase in BAL eosinophils was present only for the late bronchial samples, and this finding was supported by histological examination.

Document Type: Research Article


Publication date: March 1, 2000

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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