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Sensitization to Olive, Ash and Privet, in Seasonal Respiratory Allergy Patients from Córdoba, City, Argentina
Sunday, March 6, 2016
South Exhibit Hall H (Convention Center)
Juan C Muino, Eugenia C Garcia Cucatti, Marta D Romero, Marcela A Ordonez
Rationale: Seasonal allergic respiratory diseases are mediated by specific IgE induced by pollen. The oleaceous family is composed for 27 genera and more than 700 species, taking importance in allergy, the oil crops: olive, ash, privet. The objective of this work was to establish the frequency of sensitization to pollen of olive, ash and privet in Córdoba area, and possible cross reactivity between these.

Methods: We performed a descriptive, observational, cross sectional study. We selected 25 patients of which had skin test to oil crops and were analyzed by specific IgE by ELISA to olive, ash and privet. 

Results: The age was 41 ± 12.5 years, the gender predominant was female, n: 27 (75 %). The prick tests were positive in 5 cases to olive, 6 cases to olive & ash, 1 olive and privet, 7 cases to three antigens and negative in 6 cases to olive, 11 cases to ash ad 15 cases to privet. The specific ELISA was positive in 12 of 25 cases, separated in olive: 3 cases, ash: 6 cases, olive/ash: 1 case and ash / privet 2 cases, negative in 13 cases.  The olive ELISA positive presented overlap with ash in 2 cases, and the ash with privet in 2 cases.  

Conclusions: These results indicated that pollens of oil crops presented partial cross reactivity demonstrated by skin prick test and ELISA determination.The presence of specific IgE to one of them, suggested the possibility to sensitization to others members of the oleaceous family by cross reactivity.