TY - JOUR
T1 - The potency and Group I antigen content of six commercially prepared grass pollen extracts
AU - Baer, Harold
AU - Maloney, Clifford J.
AU - Norman, Philip S.
AU - Marsh, David G.
PY - 1974/9
Y1 - 1974/9
N2 - 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.
AB - 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.
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U2 - 10.1016/0091-6749(74)90052-9
DO - 10.1016/0091-6749(74)90052-9
M3 - Article
C2 - 4854999
AN - SCOPUS:0016289876
SN - 0091-6749
VL - 54
SP - 157
EP - 164
JO - The Journal of allergy and clinical immunology
JF - The Journal of allergy and clinical immunology
IS - 3
ER -