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Vol. 154, No. 4, 2011
Issue release date: March 2011
Section title: Original Paper
Int Arch Allergy Immunol 2011;154:345–348
(DOI:10.1159/000321827)

Peach-Induced Contact Urticaria Is Associated with Lipid Transfer Protein Sensitization

Asero R.
Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italia

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 2/8/2010
Accepted: 5/25/2010
Published online: 10/26/2010
Issue release date: March 2011

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 1

ISSN: 1018-2438 (Print)
eISSN: 1423-0097 (Online)

For additional information: http://www.karger.com/IAA

Abstract

Background: Peach-induced contact urticaria is frequent in peach-allergic subjects. Objective: It was the aim of this study to detect whether contact urticaria is associated with a specific peach allergen. Methods: Ninety-two peach-allergic subjects were studied. Patients were diagnosed as being sensitized to lipid transfer protein (LTP; Pru p 3) or as having a pollen-food allergy syndrome induced by Pru p 1 and/or profilin, Pru p 4, on the basis of the results of a skin prick test containing these allergenic proteins in an isolated form. Specific IgE to peach extract was measured as well. Contact urticaria was confirmed by a contact test with intact, untreated peach. A contact test with nectarine was carried out as control. Results: Overall, contact urticaria was present in 21% of patients; the peach contact test scored positive in all cases. Contact urticaria was significantly more frequent in patients hypersensitive to LTP (63%) than in subjects with pollen-food allergy syndrome (6%; p < 0.001) and was not associated with a higher level of peach-specific IgE. In several cases, contact urticaria preceded the onset of food allergy by years. The contact test with nectarine scored negative in 5/5 cases. Conclusions: Although the peach contact test was not performed in all subjects, and peach allergy was not confirmed by oral challenges, this study shows that peach-induced contact urticaria is associated with sensitization to peach LTP. The negative clinical history and contact test with nectarine along with the well-known high concentration of LTP in peach fuzz suggest that peach fuzz plays a role in the pathogenesis of contact urticaria.


  

Author Contacts

Correspondence to: Dr. Riccardo Asero
Ambulatorio di Allergologia
Clinica San Carlo, Via Ospedale 21
IT–20037 Paderno Dugnano (Italy)
Tel. +39 02 9903 8470, Fax +39 02 9903 8223, E-Mail r.asero@libero.it

  

Article Information

Received: February 8, 2010
Accepted after revision: May 25, 2010
Published online: October 26, 2010
Number of Print Pages : 4
Number of Figures : 0, Number of Tables : 1, Number of References : 15

  

Publication Details

International Archives of Allergy and Immunology

Vol. 154, No. 4, Year 2011 (Cover Date: March 2011)

Journal Editor: Valenta R. (Vienna)
ISSN: 1018-2438 (Print), eISSN: 1423-0097 (Online)

For additional information: http://www.karger.com/IAA


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: 2/8/2010
Accepted: 5/25/2010
Published online: 10/26/2010
Issue release date: March 2011

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 1

ISSN: 1018-2438 (Print)
eISSN: 1423-0097 (Online)

For additional information: http://www.karger.com/IAA


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