Biomaterial Database

Intranasal allergen challenge during corticosteroid treatment. 1977

N Mygind, and N J Johnsen, and J Thomsen

The effect of a corticosteroid drug on type I reactions in the nose was studied in eighteen hay fever patients. They were treated with a daily dosage of 800 microng beclomethasone dipropionate intranasally for I week, in a double-blind, placebo-controlled cross-over trial. Allergen challenge on the last day of each treatment period showed that steroid treatment diminished sneezing and rhinorrhoea, but the effect was not statistically significant (P = 0-10). Immediate nasal blockage was unaffected. There is a marked discrepancy between the minor protection offered by beclomethasone dipropionate in type I allergy, as suggested in this study and the marked efficacy of the drug in the treatment of hay fever. It is suggested that two factors may account for this discrepancy. First, the significance of "delayed" reactions for hay fever symptoms. Second, the difference between a single allergen provocation and continuous exposure. It is suggested that a slight steroid inhibition of immediate reactions following allergen provocation is potentiated during natural exposure due to inhibition of the priming of the end-organ.

UI	MeSH Term	Description	Entries
D006969	Hypersensitivity, Immediate	Hypersensitivity reactions which occur within minutes of exposure to challenging antigen due to the release of histamine which follows the antigen-antibody reaction and causes smooth muscle contraction and increased vascular permeability.	Atopic Hypersensitivity,Hypersensitivity, Atopic,Hypersensitivity, Type I,IgE-Mediated Hypersensitivity,Type I Hypersensitivity,Atopic Hypersensitivities,Hypersensitivities, Atopic,Hypersensitivities, IgE-Mediated,Hypersensitivities, Immediate,Hypersensitivities, Type I,Hypersensitivity, IgE-Mediated,IgE Mediated Hypersensitivity,IgE-Mediated Hypersensitivities,Immediate Hypersensitivities,Immediate Hypersensitivity,Type I Hypersensitivities
D011058	Pollen	The fertilizing element of plants that contains the male GAMETOPHYTES.	Male Gametes, Plant,Male Gametophytes,Microspores, Plant,Plant Microspores,Pollen Grains,Gamete, Plant Male,Gametes, Plant Male,Gametophyte, Male,Gametophytes, Male,Grain, Pollen,Grains, Pollen,Male Gamete, Plant,Male Gametophyte,Microspore, Plant,Plant Male Gamete,Plant Male Gametes,Plant Microspore,Pollen Grain
D002986	Clinical Trials as Topic	Works about pre-planned studies of the safety, efficacy, or optimum dosage schedule (if appropriate) of one or more diagnostic, therapeutic, or prophylactic drugs, devices, or techniques selected according to predetermined criteria of eligibility and observed for predefined evidence of favorable and unfavorable effects. This concept includes clinical trials conducted both in the U.S. and in other countries.	Clinical Trial as Topic
D006255	Rhinitis, Allergic, Seasonal	Allergic rhinitis that occurs at the same time every year. It is characterized by acute CONJUNCTIVITIS with lacrimation and ITCHING, and regarded as an allergic condition triggered by specific ALLERGENS.	Hay Fever,Pollen Allergy,Pollinosis,Seasonal Allergic Rhinitis,Hayfever,Allergic Rhinitides, Seasonal,Allergic Rhinitis, Seasonal,Allergies, Pollen,Allergy, Pollen,Fever, Hay,Pollen Allergies,Pollinoses,Rhinitides, Seasonal Allergic,Rhinitis, Seasonal Allergic,Seasonal Allergic Rhinitides
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000281	Administration, Intranasal	Delivery of medications through the nasal mucosa.	Drug Administration, Intranasal,Administration, Intranasal Drug,Administration, Nasal,Intranasal Administration,Intranasal Drug Administration,Administrations, Intranasal,Administrations, Intranasal Drug,Administrations, Nasal,Drug Administrations, Intranasal,Intranasal Administrations,Intranasal Drug Administrations,Nasal Administration,Nasal Administrations
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000485	Allergens	Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).	Allergen
D001507	Beclomethasone	An anti-inflammatory, synthetic glucocorticoid. It is used topically as an anti-inflammatory agent and in aerosol form for the treatment of ASTHMA.	Beclomethasone Dipropionate,AeroBec Forte,Aerobec,Aldecin,Apo-Beclomethasone,Ascocortonyl,Asmabec Clickhaler,Beclamet,Beclazone,Beclazone Easy Breathe,Beclo AZU,Beclo Asma,Beclocort,Becloforte,Beclomet,Beclometasone,Beclorhinol,Becloturmant,Beclovent,Becodisk,Becodisks,Beconase,Beconase AQ,Becotide,Bemedrex Easyhaler,Bronchocort,Ecobec,Filair,Filair Forte,Junik,Nasobec Aqueous,Prolair,Propaderm,Qvar,Respocort,Sanasthmax,Sanasthmyl,Vancenase,Vanceril,Ventolair,Viarin,Dipropionate, Beclomethasone