Wheat threshing dust--a "new allergen" in April-May nasobronchial allergy.
Indian Pediatr
;
1996 Jul; 33(7): 566-70
Article
Dans Anglais
| IMSEAR
| ID: sea-14110
ABSTRACT
OBJECTIVE:
To identify the allergen(s) responsible for mid April-mid May nasobronchial allergy seen in North India.DESIGN:
Case control study.SETTING:
Children living in and around Chandigarh (urban, rural).SUBJECTS:
39 children suffering from wheat harvest period (mid April-mid May) respiratory allergy along with randomly selected controls.METHODS:
Aerobiological surveys were done from March to June for identification of prevailing allergens for performing allergy tests. Patients were subjected to skin tests (ST), nasal provocation tests (NPT) and bronchial provocation tests (BPT) with extracts prepared from identified pollens and fungal spores. Specific IgE (SIgE) was assayed by ELISA and comparison between pre-season, season and post-season values made.RESULTS:
81% patients had ST positive to antigen of wheat threshing dust (WTD), 30% to fungal antigens, 14% to wheat dust antigens and none to the wheat plant (WP) antigens. Nasal provocation test and bronchial provocation tests were also positive to WTD in 80% and 66% patients, respectively. WTD SIgE was demonstrated in 77% of ST positive patients.CONCLUSIONS:
These in vivo and in vitro tests confirm wheat threshing dust as a major causative inhalant allergen for the April-May nasobronchial allergy; in addition, fungal allergens also play a role in 1/3rd of these patients.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Hypersensibilité respiratoire
/
Saisons
/
Triticum
/
Humains
/
Études cas-témoins
/
Enfant
/
Analyse de variance
/
Adolescent
/
Agriculture
/
Poussière
Type d'étude:
Étude observationnelle
/
Facteurs de risque
Pays comme sujet:
Asie
langue:
Anglais
Texte intégral:
Indian Pediatr
Année:
1996
Type:
Article
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