Clinico-immunologic evaluation of allergy to Himalayan tree pollen in atopic subjects in India--a new record.

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dc.contributor.authorBist, Arnimaen_US
dc.contributor.authorKumar, Lataen_US
dc.contributor.authorRoy, Indranien_US
dc.contributor.authorRavindran, Pen_US
dc.contributor.authorGaurs, S Nen_US
dc.contributor.authorSingh, A Ben_US
dc.date.accessioned2009-05-27T17:15:11Z
dc.date.available2009-05-27T17:15:11Z
dc.date.issued2005-12-29en_US
dc.descriptionPublished by the Allergy and Immunology Society of Thailand.en_US
dc.description.abstractExposure to local pollen allergens has a direct bearing on the prevalence of allergic symptoms among the inhabiting atopic population. The populations in the Himalayas and around it are exposed to a variety of pollen grains from trees growing in the region, but the pollen-population interaction has not been clinically investigated. Himalayan tree pollen from five different taxa, i.e. Alnus nitida (AN), Betula utilis (BU), Cedrus deodara (CD), Mallotus phillipensis (MP) and Quercus incana (QI) were evaluated for their allergenicity in the Indian population by in vivo (skin prick test) and in vitro (ELISA) clinico-immunological methods. The presence of specific IgE against these tree pollen in the sera of skin test positive patients was taken as evidence for sensitization to these pollen. The average skin positivity in atopic populations recorded at different allergy centers in India varied from 2.2% against AN, to 4.7% against MP pollen. Significantly raised specific IgE against these pollen were observed in the sera of hypersensitive patients. The sensitization pattern to Himalayan tree pollen in these atopic populations varied. It was concluded that skin prick test positivity and raised IgE antibodies specific to AN, BU, CD, MP and QI established Himalayan tree pollen as important sensitizers in the atopic populations of India. A high incidence of skin sensitivity was observed to pollen antigens of Cedrus deodara, Mallotus phillipensis and Quercus incana in patients of Chandigarh residing in the hills and foothills of the Himalayas while Alnus nitida, Betula utilis and Cedrus deodara were important sensitizers in Delhi patients. The skin sensitization pattern against these pollen was in accordance with the level of exposure to these pollen of the subjects residing in that part of the country.en_US
dc.description.affiliationInstitute of Genomics and Integrative Biology, Delhi University Campus, Delhi, India.en_US
dc.identifier.citationBist A, Kumar L, Roy I, Ravindran P, Gaurs SN, Singh AB. Clinico-immunologic evaluation of allergy to Himalayan tree pollen in atopic subjects in India--a new record. Asian Pacific Journal of Allergy and Immunology. 2005 Jun-Sep; 23(2-3): 69-78en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/36785
dc.language.isoengen_US
dc.subject.meshAdolescenten_US
dc.subject.meshAdulten_US
dc.subject.meshAlnus --immunologyen_US
dc.subject.meshAntigens, Plant --blooden_US
dc.subject.meshAsthma --immunologyen_US
dc.subject.meshBetula --immunologyen_US
dc.subject.meshCedrus --immunologyen_US
dc.subject.meshChilden_US
dc.subject.meshEnzyme-Linked Immunosorbent Assayen_US
dc.subject.meshEvaluation Studies as Topicen_US
dc.subject.meshFemaleen_US
dc.subject.meshHumansen_US
dc.subject.meshHypersensitivity, Immediate --diagnosisen_US
dc.subject.meshImmunizationen_US
dc.subject.meshImmunoglobulin E --blooden_US
dc.subject.meshIndia --epidemiologyen_US
dc.subject.meshMaleen_US
dc.subject.meshMallotus Plant --immunologyen_US
dc.subject.meshMiddle Ageden_US
dc.subject.meshPollen --classificationen_US
dc.subject.meshQuercus --immunologyen_US
dc.subject.meshRhinitis, Allergic, Seasonal --diagnosisen_US
dc.subject.meshSeasonsen_US
dc.subject.meshSensitivity and Specificityen_US
dc.subject.meshSkin Testsen_US
dc.subject.meshTrees --immunologyen_US
dc.titleClinico-immunologic evaluation of allergy to Himalayan tree pollen in atopic subjects in India--a new record.en_US
dc.typeComparative Studyen_US
dc.typeJournal Articleen_US
dc.typeMulticenter Studyen_US
dc.typeResearch Support, Non-U.S. Gov'ten_US
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