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Reagins in murine strains A/HeJ, RF/J C3H/HeJ and B6D2F1 were induced by immunization, in the presence of A1(OH)3, with the retentate (R) obtained by dialysis from the aqueous extract of Kentucky blue grass pollen (KBG-Aq. ext.). Administration of doses of R ranging from 50-200 microgram resulted in IgE antibody responses which were sustained for periods of the order of 6 months. The possibility of suppressing the anti-R IgE antibody response in sensitized A/HeJ mice was tested by the administration into these animals for a period of 14 weeks, biweekly injections of a skin-active, immunogenic fraction (DI) isolated from the dialysate of KBG-Aq. ext. This treatment effectively suppressed the secondary IgE antibody response to R and markedly increased levels of hemagglutinating antibodies. On the basis of the fact that DI comprised only 1.5% of the parent fraction KBG-Aq. ext. and since it was capable of modulating the immune response to R as described, it is suggested that DI may prove to be a useful agent for the immunotherapy of allergies to KBG pollen.
A K Ekramoddoullah, and
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A H Sehon
August 1978,
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A K Ekramoddoullah, and
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A H Sehon
April 2020,
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A K Ekramoddoullah, and
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A K Ekramoddoullah, and
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A K Ekramoddoullah, and
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A K Ekramoddoullah, and
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A K Ekramoddoullah, and
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A H Sehon
July 1994,
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A K Ekramoddoullah, and
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A H Sehon
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