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  • Title: Cocos nucifera pollen inducing allergy: sensitivity test and immunological study.
    Author: Karmakar PR, Chatterjee BP.
    Journal: Indian J Exp Biol; 1995 Jul; 33(7):489-96. PubMed ID: 7590957.
    Abstract:
    Among the heterogeneous population (n = 975) in greater Calutta, sensitization to Cocos nucifera pollen accounts to be 2.65% and for atopic patients (n = 204) 47.06%. Out of 24 patients who had C. nucifera pollen sensitivity and suffered from asthma and allergic rhinitis, 16 showed sensitivity also to other allergens. All were skin test positive and 19 of them were phadezym RAST positive to C. nucifera pollen extract. Bronchial provocation test appeared to be positive in 7 out of 8 patients included in the test and no late response or non-specific reactions were observed. C. nucifera pollen extract on fractionation by ion-exchange chromatography following gel filtration yielded two major allergenic protein fractions, CnII (M(r) 158,000) and CnVII (M(r) 2900) as evidenced by skin prick test, ELISA-inhibition and immunoblot analysis. Hence, C. nucifera pollen should be considered to be a relevant allergen and thus included in the panel of allergens for routine clinical use.
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