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Canadian Respiratory Journal
Volume 2016, Article ID 5782317, 5 pages
Research Article

Role of Predatory Mites in Persistent Nonoccupational Allergic Rhinitis

1Allergy Department, Hospital del Tórax, HUNS La Candelaria, 38320 Santa Cruz de Tenerife, Spain
2Department of Clinical Sciences-Division IV, Lund University, 22100 Lund, Sweden
3Laboratorios LETI, 28760 Madrid, Spain

Received 20 February 2016; Accepted 30 May 2016

Academic Editor: Christophe Leroyer

Copyright © 2016 Paloma Poza Guedes et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Mites can sensitize and induce atopic disease in predisposed individuals and are an important deteriorating factor in patients with allergic rhinitis, asthma, and atopic dermatitis. Although Pyroglyphidae mites have been extensively studied, very scarce reports are available on Cheyletidae spp. especially regarding human respiratory pathology. The main objective of the present study is to investigate the clinical role of this predator mite (Cheyletus eruditus) as a respiratory antigen in a selected sensitized human population. Fifty-two adult patients were recruited from the outpatient allergy clinic to assess their eligibility for the study. The thirty-seven subjects with persistent allergic rhinitis (PAR) who fulfilled the ARIA criteria had a positive IgE response confirmed by skin prick test (SPT) to C. eruditus. Only those individuals (37/47) with a positive SPT to C. eruditus showed a positive nasal provocation test (NPT), while 10 patients with nonallergic mild-to-moderate persistent rhinitis, control group, had a negative NPT with C. eruditus. The present paper describes a new role for the predator mite Cheyletus eruditus as a respiratory allergen in a selected subset of patients in a subtropical environment afflicted with persistent nonoccupational allergic rhinitis.