Inhibition of antigen-induced bronchoconstriction by methylprednisolone succinate

J. C. Delehunt, L. Yerger, T. Ahmed, W. M. Abraham

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We investigated whether the glucocorticoid methylprednisolone succinate (15 mg/kg) could prevent antigen-induced bronchoconstriction in conscious sheep. Ten allergic ewes were subjected to inhalation challenge with Ascaris suum antigen, with and without methylprednisolone pretreatment, administered intravenously either 20 min or 3 hr before antigen challenge. Antigen challenge alone resulted in increased airflow resistance, pulmonary hyperinflation, and decreases in dynamic lung compliance and arterial oxygen tension. Methylprednisolone administered 20 min before antigen challenge had no effect on these antigen-induced changes. In contrast, administration of methylprednisolone 3 hr before antigen challenge effectively prevented all the responses to antigen challenge. We suggest that pretreatment with glucocorticoids can attenuate airway anaphylaxis if sufficient time is allowed between the pretreatment and the antigen challenge.

Original languageEnglish
Pages (from-to)479-483
Number of pages5
JournalThe Journal of Allergy and Clinical Immunology
Volume73
Issue number4
DOIs
StatePublished - Jan 1 1984
Externally publishedYes

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Methylprednisolone Hemisuccinate
Bronchoconstriction
Antigens
Methylprednisolone
Glucocorticoids
Ascaris suum
Lung Compliance
Anaphylaxis
Inhalation
Sheep
Arterial Pressure
Oxygen

ASJC Scopus subject areas

  • Immunology
  • Immunology and Allergy

Cite this

Inhibition of antigen-induced bronchoconstriction by methylprednisolone succinate. / Delehunt, J. C.; Yerger, L.; Ahmed, T.; Abraham, W. M.

In: The Journal of Allergy and Clinical Immunology, Vol. 73, No. 4, 01.01.1984, p. 479-483.

Research output: Contribution to journalArticle

Delehunt, J. C. ; Yerger, L. ; Ahmed, T. ; Abraham, W. M. / Inhibition of antigen-induced bronchoconstriction by methylprednisolone succinate. In: The Journal of Allergy and Clinical Immunology. 1984 ; Vol. 73, No. 4. pp. 479-483.
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