AllergensSkin TestsHistamineDesensitization, ImmunologicImmunoglobulin EHypersensitivity, ImmediateHypersensitivityRhinitis, Allergic, SeasonalAsthmaHistamine ReleaseImmune SystemReceptors, Histamine H1Antigens, PlantReceptors, Histamine H2Receptors, HistamineHistamine AntagonistsHistamine AgonistsSkinTuberculin TestMitesHistamine H1 AntagonistsReceptors, Histamine H3Antigens, DermatophagoidesPollenIntradermal TestsFood HypersensitivityArthropod ProteinsPyroglyphidaeCockroachesHistamine H2 AntagonistsRadioallergosorbent TestRespiratory HypersensitivityDustBetulaHistamine N-MethyltransferaseBasophilsAnaphylaxisBronchial Provocation TestsRhinitis, Allergic, PerennialHypersensitivity, DelayedLatent TuberculosisPyrilaminePhleumSkin DiseasesDermatophagoides pteronyssinusImmunity, InnateBronchial HyperreactivityMice, Inbred BALB CTuberculosisOvalbuminSkin AgingSkin NeoplasmsDermatophagoides farinaeImmune ToleranceCytokinesT-LymphocytesMethylhistamines2S Albumins, PlantInterferon-gammaImmunoglobulin GMast CellsImmunity, CellularUrticariaAmbrosiaHistidine DecarboxylaseAir Pollution, IndoorLatex HypersensitivityDimapritArachis hypogaeaEnzyme-Linked Immunosorbent AssayHistamine H3 AntagonistsLymphocyte ActivationDermatitis, Allergic ContactTuberculinHistamine AgentsInterferon-gamma Release TestsNasal Provocation TestsMice, Inbred C57BLDrug HypersensitivityTh2 CellsGuinea PigsPoaceaePlant ProteinsBasophil Degranulation TestCross ReactionsCimetidineBCG VaccineLungMolecular Sequence DataAnti-Allergic AgentsRhinitisChlorpheniramineImmunologic TestsEosinophilsImmunizationAntigensMethacholine ChlorideCells, CulturedDendritic CellsAmino Acid Sequence