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Allergic memory of patients sensitized to castor bean after a long stimulation-free period

 

 

 

J Asthma. 2006 Apr;43(3):193-8.

 

Allergic memory of patients sensitized to castor bean after a long stimulation-free period.

 

Marin V, Saraga J, Ariano R, Chouquet D, Dispard M, Bongrand P, Panzani RC.

 

Laboratoire d'immunologie, Universite de la Mediterranee, Hopital de Sainte Marguerite, Marseille, France. This email address is being protected from spambots. You need JavaScript enabled to view it.

 

We have taken advantage of the temporary exposure of Marseilles population to castor bean seed proteins to follow 26 allergic patients more than 20 years after sensitization. Skin tests, specific immunoglobulin E (IgE) antibody assays, and specific immunoblots were performed. Skin test reactivity to Ricinus Communis and specific IgE concentrations decreased progressively and almost completely disappeared after 20 years. Specific IgE concentration displayed a fairly exponential decrease, with a half-life of 4.7 years. Thus, in the absence of any antigenic stimulation, directly by castor bean, or indirectly by cross-reactivity to other Euphorbiaceae, especially latex, IgE sensitization is bound to disappear.

 

PMID: 16754520 [PubMed - indexed for MEDLINE]


Full Article Available Online

 


 

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