Larenas-Linnemann, Desiree, Michels, Alexandra, Dinger, Hanna, Shah-Hosseini, Kijawasch, Moesges, Ralph, Arias-Cruz, Alfredo ORCID: 0000-0002-4077-4225, Ambriz-Moreno, Marichuy, Bedolla Barajas, Martin, Cerino Javier, Ruth, Cid del Prado, Maria de la Luz, Cruz Moreno, Manuel Alejandro, Garcia Almaraz, Roberto, Garcia-Cobas, Cecilia Y., Garcia Imperial, Daniel A., Garcia Munoz, Rosa, Hernandez-Colin, Dante, Linares-Zapien, Francisco J., Luna-Pech, Jorge A. ORCID: 0000-0001-6278-964X, Matta-Campos, Juan J., Martinez Jimenez, Norma, Medina-Avalos, Miguel A., Medina Hernandez, Alejandra, Monteverde Maldonado, Alberto, Lopez, Doris N., Pizano Nazara, Luis J., Ramirez Sanchez, Emmanuel, Ramos-Lopez, Jose D., Rodriguez-Perez, Noel and Rodriquez-Ortiz, Pablo G. (2014). Allergen sensitization linked to climate and age, not to intermittent-persistent rhinitis in a cross-sectional cohort study in the (sub) tropics. Clin. Transl. Allergy, 4. LONDON: BMC. ISSN 2045-7022

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Abstract

Background: Allergen exposure leads to allergen sensitization in susceptible individuals and this might influence allergic rhinitis (AR) phenotype expression. We investigated whether sensitization patterns vary in a country with subtropical and tropical regions and if sensitization patterns relate to AR phenotypes or age. Methods: In a national, cross-sectional study AR patients (2-70 y) seen by allergists underwent blinded skin prick testing with a panel of 18 allergens and completed a validated questionnaire on AR phenotypes. Results: 628 patients were recruited. The major sensitizing allergen was house dust mite (HDM) (56%), followed by Bermuda grass (26%), ash (24%), oak (23%) and mesquite (21%) pollen, cat (22%) and cockroach (21%). Patients living in the tropical region were almost exclusively sensitized to HDM (87%). In the central agricultural zones sensitization is primarily to grass and tree pollen. Nationwide, most study subjects had perennial (82.2%), intermittent (56.5%) and moderate-severe (84.7%) AR. Sensitization was not related to the intermittent-persistent AR classification or to AR severity; seasonal AR was associated with tree (p < 0.05) and grass pollen sensitization (p < 0.01). HDM sensitization was more frequent in children (0-11 y) and adolescents (12-17 y) (subtropical region: p < 0.0005; tropical region p < 0.05), but pollen sensitization becomes more important in the adult patients visiting allergists (Adults vs children + adolescents for tree pollen: p < 0.0001, weeds: p < 0.0005). Conclusions: In a country with (sub) tropical climate zones SPT sensitization patterns varied according to climatological zones; they were different from those found in Europe, HDM sensitization far outweighing pollen allergies and Bermuda grass and Ash pollen being the main grass and tree allergens, respectively. Pollen sensitization was related to SAR, but no relation between sensitization and intermittent-persistent AR or AR severity could be detected. Sensitization patterns vary with age (child HDM, adult pollen). Clinical implications of our findings are dual: only a few allergens -some region specific - cover the majority of sensitizations in (sub) tropical climate zones. This is of major importance for allergen manufacturers and immunotherapy planning. Secondly, patient selection in clinical trials should be based on the intermittent-persistent and severity classifications, rather than on the seasonal-perennial AR subtypes, especially when conducted in (sub) tropical countries.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Larenas-Linnemann, DesireeUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Michels, AlexandraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Dinger, HannaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Shah-Hosseini, KijawaschUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Moesges, RalphUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Arias-Cruz, AlfredoUNSPECIFIEDorcid.org/0000-0002-4077-4225UNSPECIFIED
Ambriz-Moreno, MarichuyUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bedolla Barajas, MartinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cerino Javier, RuthUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cid del Prado, Maria de la LuzUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Cruz Moreno, Manuel AlejandroUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia Almaraz, RobertoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia-Cobas, Cecilia Y.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia Imperial, Daniel A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Garcia Munoz, RosaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hernandez-Colin, DanteUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Linares-Zapien, Francisco J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Luna-Pech, Jorge A.UNSPECIFIEDorcid.org/0000-0001-6278-964XUNSPECIFIED
Matta-Campos, Juan J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Martinez Jimenez, NormaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Medina-Avalos, Miguel A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Medina Hernandez, AlejandraUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Monteverde Maldonado, AlbertoUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lopez, Doris N.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pizano Nazara, Luis J.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ramirez Sanchez, EmmanuelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Ramos-Lopez, Jose D.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rodriguez-Perez, NoelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Rodriquez-Ortiz, Pablo G.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-451921
DOI: 10.1186/2045-7022-4-20
Journal or Publication Title: Clin. Transl. Allergy
Volume: 4
Date: 2014
Publisher: BMC
Place of Publication: LONDON
ISSN: 2045-7022
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
SKIN PRICK TEST; ARIA CLASSIFICATION; PREVALENCE; ASTHMA; SYMPTOMS; CHILDREN; HEALTH; PATTERNS; DISEASES; GA(2)LENMultiple languages
AllergyMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/45192

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