1Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano, Italy
2U.O.C. di Patologia Clinica Ospedale Buccheri La Ferla F.B.F., Palermo, Italy
3Allergy Unit, Istituto dermopatico dell'Immacolata, IDI-IRCCS, Roma, Italy
4SSD di Immunologia e allergologia, Ospedale S. Maria degli Angeli, Pordenone, Italy
5Struttura Complessa di Allergologia e Immunologia, ASST GOM Niguarda, Milano, Italy
6Dipartimento di Medicina di Laboratorio, ASST GOM Niguarda, Milano, Italy
7Unità Operativa di Medicina Interna Rimini, Ambulatorio di Allergologia, Azienda Sanitaria Romagna, Rimini, Italy
8LUM AUSL Bologna, Italy
9Sevizio di Allergologia, Casa di Cura Beato Palazzolo, Bergamo, Italy
10Servizio Medicina di Laboratorio, ASST Bergamo Ovest, Bergamo, Italy
11UOC Allergologia ed Immnologia Clinica ASL Lecce P.O.V. Fazzi, Lecce, Italy
12U.O.S.D di Allergologia, Ospedale S.S. Filippo e Nicola, Avezzano (AQ), Italy
13Servizio di Allergologia, Casa della Salute di Scilla, Scilla (RC), Italy
14Servizio di Allergologia, Fondazione Policlinico Universitario A. Gemelli, Roma, Italy
15Istituto di Patologia Generale, Fondazione Policlinico Universitario A. Gemelli, Roma, Italy
16 Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy. Area Pediatrica
17Servizio di Allergologia, UOC Medicina Interna, Polo Ospedaliero S. Spirito e Nuovo Regina Margherita, Roma, Italy
18Servizio di Allergologia di Laboratorio, UOC Patologia Clinica, Ospedale S. Filippo Neri, Roma, Italy
19Unità di Allergologia, Medicina Interna, Ospedale di Faenza, Faenza (RA), Italy
20Centro Malattie Allergiche Bonsignori, Istituto di Biomedicina e Immunologia Molecolare, CNR, Palermo, Italy
21Pronto Soccorso Pediatrico, Azienda Ospedaliera Pugliese Ciaccio, Catanzaro, Italy
22Patologia e Biochimica Clinica, Università Magna Graecia, Catanzaro, Italy
23Istituto Zooprofilattico Sperimentale della Sicilia A. Mirri, Palermo, Italy
History:
Published online: 8 October 2019
Accepted: 27 July 2019
Received: 08 July 2019
Sensitization and allergy to shrimp among Italian house dust mite allergic patients are not well defined and were investigated in a large multicenter study.
Shrimp sensitization and allergy were assessed in 526 house dust mite (HDM)-allergic patients submitted to the detection of IgE to Der p 10 and 100 atopic control not sensitized to HDM.
Shrimp allergy occurred in 9% of patients (vs 0% of 100 atopic controls not sensitized to HDM; p < 0.001). Shrimp-allergic patients were less frequently hypersensitive to airborne allergens other than HDM than crustacean-tolerant subjects (35% vs 58.8%; p < 0.005). Only 51% of tropomyosin-sensitized patients had shrimp allergy, and these showed significantly higher Der p 10 IgE levels than shrimp-tolerant ones (mean 22.2 KU/l vs 6.2 KU/l; p < 0.05). Altogether 53% of shrimp-allergic patients did not react against tropomyosin.
Shrimp allergy seems to occur uniquely in association with hypersensitivity to HDM allergens and tropomyosin is the main shrimp allergen but not a major one, at least in Italy. Along with tropomyosin-specific IgE levels, monosensitization to HDM seems to represent a risk factor for the development of shrimp allergy among HDM allergic patients.