| D006967 |
Hypersensitivity |
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen. |
Allergy,Allergic Reaction,Allergic Reactions,Allergies,Hypersensitivities,Reaction, Allergic,Reactions, Allergic |
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| D008297 |
Male |
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Males |
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| D008688 |
Methacholine Compounds |
A group of compounds that are derivatives of beta-methylacetylcholine (methacholine). |
Compounds, Methacholine |
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| D008875 |
Middle Aged |
An adult aged 45 - 64 years. |
Middle Age |
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| D012137 |
Respiratory System |
The tubular and cavernous organs and structures, by means of which pulmonary ventilation and gas exchange between ambient air and the blood are brought about. |
Respiratory Tract,Respiratory Systems,Respiratory Tracts,System, Respiratory,Tract, Respiratory |
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| D005260 |
Female |
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Females |
|
| 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 |
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| D006632 |
Histamine |
An amine derived by enzymatic decarboxylation of HISTIDINE. It is a powerful stimulant of gastric secretion, a constrictor of bronchial smooth muscle, a vasodilator, and also a centrally acting neurotransmitter. |
Ceplene,Histamine Dihydrochloride,Histamine Hydrochloride,Peremin |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D000293 |
Adolescent |
A person 13 to 18 years of age. |
Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths |
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