The potency and Group I antigen content of six commercially prepared grass pollen extracts

Harold Baer, Clifford J. Maloney, Philip S. Norman, David G. Marsh

Research output: Contribution to journalArticlepeer-review

Abstract

Commercially prepared extracts of 6 different grass pollens, rye, fescue, sweet vernal, june, velvet, and redtop were compared for their skin reactivity, rye Group I allergen content, and protein nitrogen units (PNU) content claimed by the manufacturer and redetermined at the time the extracts were used. There was a high correlation between skin reactivity and Group I allergen content. There was no correlation between the PNU claimed and either skin reactivity or Group I allergen content. The PNU determined at the time the extracts were used showed an improved correlation with biologic activity.

Original languageEnglish (US)
Pages (from-to)157-164
Number of pages8
JournalThe Journal of allergy and clinical immunology
Volume54
Issue number3
DOIs
StatePublished - Sep 1974
Externally publishedYes

ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology

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