Evaluation of Sensitization to Peach and/or Cypress in Potato Sensitized Patients in a Large Cohort

Prevalence of Sensitization to Peach and/or Cypress in Potato Sensitized Patients in Occitania

The aim of the study will be to investigate the prevalence of of sensitization to peach and/or cypress in potato sensitized patients, based on the collection of medical data from patient records consulting in the Allergy Unit of the Arnaud de Villeneuve Hospital.

Some Gibberellin-regulated protein (GRP) in fruits and pollens have been identified as allergen, and peach GRP (peamaclein) has recently emerged as a relevant food allergen in cypress pollen-hypersensitive patients. Multiple fruit allergies might be related to cross-reactivity between GRPs. Peamaclein shares 82% identity with snakin-1 from potato. Thus, because of this hight homology the investigators want to determine the prevalence of cosensitization between these 3 allergens potato, peach and cypress.

Inclusion criteria:

• Patients evaluated at the Montpellier University Hospital, Allergy Unit
• children and adult with positive skin prick test to potato from february 2013 to december 2015

Exclusion criteria:

• Patients under legal protection
• Patients under guardianship or under curatorship
• Patients not capable of understanding French