Environmental Pollutants and Their Effects on Respiratory Allergy
Study Details
Study Description
Brief Summary
In Latin America and the Caribbean, more than 100 million people are exposed to higher levels of pollution than those recommended by WHO. The objective of the study is to determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy. It is an observational, prospective, longitudinal and descriptive study that will include subjects older than 6 years who come to the consultation of the Regional Center for Allergy and Clinical Immunology with a diagnosis of respiratory allergy, positive skin tests and who live in Monterrey and its metropolitan area. After verbal assent, the subject's address and work area will be registered, the Rhinitis Control Assessment Test and the Asthma Control Test as well as spirometry will be made. The geolocation of industries and avenues near the address and work area of subjects will be carried out, as well as the determination of pollutants and pollens by the Integral Monitoring System (SIMA) and the Pollen Sense device. Subsequently, the correlation between exposure to pollutants and respiratory allergy will be analyzed. Dispersion models will be built considering pollutants and climatic factors (precipitation, wind speed, humidity and temperature). By carrying out this project, it will be possible to contribute to the identification of the factors that lead to the development and exacerbation of allergic respiratory diseases and subsequently propose the implementation of measures for their control and recommendations for prevention to the population.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Study Design
Outcome Measures
Primary Outcome Measures
- Association of respiratory symptoms with exposure to pollutants and pollen [1 year]
To determine the relationship between exposure to environmental pollutants and the prevalence and exacerbation of respiratory allergy.
Secondary Outcome Measures
- Avenues with highest diesel exhaust particles and traffic related particles [1 year]
Locate the avenues with the highest flow and vehicular load releasing diesel removal particles (DEP) and traffic-related air pollutants (TRAP).
- Location of the main industries that emit pollutants [1 year]
Location of the main industries that emit pollutants of particulate matter (PM), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO) and ozone (O3).
- Distance of greater exposure to pollutants [1 year]
To assess the relationship between the distance to PM, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms with home and work address.
- Time of pollutant exposure and association with respiratory symptoms [1 year]
Evaluate the relationship between the time of exposure to PM, NO2, SO2, O3, traffic-related air pollutants (TRAP) and diesel exhaust particles (DEP) with the prevalence of respiratory allergy symptoms.
Eligibility Criteria
Criteria
Inclusion Criteria:
- Subjects over 6 years of age who attend the the Regional Center of Allergy and Clinical Immunology of the University Hospital "Dr. José Eleuterio González "with a diagnosis of respiratory allergy (allergic rhinitis and asthma) and type I immunological hypersensitivity demonstrated by skin tests by an allergist; and who live in the city of Monterrey and its metropolitan area.
Exclusion Criteria:
- Subjects for whom it is not possible to perform a pulmonary function test or who have concomitant diseases such as COPD, heart disease or some other pathology that, in the opinion of the investigator, may cause confusion with respiratory symptoms. Patients with negative skin tests to aeroallergens.
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | Regional Center of Allergy and Clinical Immunology, Hospital Universitario "Dr. José Eleuterio González" | Monterrey | Nuevo Leon | Mexico | 64460 |
Sponsors and Collaborators
- Cindy Elizabeth de Lira-Quezada
- Medicina
Investigators
- Study Director: Sandra N Gonzalez Diaz, MD,PhD, Head of the Allergy and Clinical Immunology Service
Study Documents (Full-Text)
None provided.More Information
Publications
- Cecchi L, D'Amato G, Annesi-Maesano I. External exposome and allergic respiratory and skin diseases. J Allergy Clin Immunol. 2018 Mar;141(3):846-857. doi: 10.1016/j.jaci.2018.01.016. Review.
- D'Amato G, Bergmann KC, Cecchi L, Annesi-Maesano I, Sanduzzi A, Liccardi G, Vitale C, Stanziola A, D'Amato M. Climate change and air pollution: Effects on pollen allergy and other allergic respiratory diseases. Allergo J Int. 2014;23(1):17-23. Epub 2014 Feb 19. Review.
- D'Amato G, Holgate ST, Pawankar R, Ledford DK, Cecchi L, Al-Ahmad M, Al-Enezi F, Al-Muhsen S, Ansotegui I, Baena-Cagnani CE, Baker DJ, Bayram H, Bergmann KC, Boulet LP, Buters JT, D'Amato M, Dorsano S, Douwes J, Finlay SE, Garrasi D, Gómez M, Haahtela T, Halwani R, Hassani Y, Mahboub B, Marks G, Michelozzi P, Montagni M, Nunes C, Oh JJ, Popov TA, Portnoy J, Ridolo E, Rosário N, Rottem M, Sánchez-Borges M, Sibanda E, Sienra-Monge JJ, Vitale C, Annesi-Maesano I. Meteorological conditions, climate change, new emerging factors, and asthma and related allergic disorders. A statement of the World Allergy Organization. World Allergy Organ J. 2015 Jul 14;8(1):25. doi: 10.1186/s40413-015-0073-0. eCollection 2015.
- Krishnan S, Panacherry S. Asthma, Environment and Pollution: Where the Rubber Hits the Road. Indian J Pediatr. 2018 Oct;85(10):893-898. doi: 10.1007/s12098-018-2691-3. Epub 2018 May 30. Review.
- Lai CK, Beasley R, Crane J, Foliaki S, Shah J, Weiland S; International Study of Asthma and Allergies in Childhood Phase Three Study Group. Global variation in the prevalence and severity of asthma symptoms: phase three of the International Study of Asthma and Allergies in Childhood (ISAAC). Thorax. 2009 Jun;64(6):476-83. doi: 10.1136/thx.2008.106609. Epub 2009 Feb 22.
- Landrigan PJ, Fuller R, Acosta NJR, Adeyi O, Arnold R, Basu NN, Baldé AB, Bertollini R, Bose-O'Reilly S, Boufford JI, Breysse PN, Chiles T, Mahidol C, Coll-Seck AM, Cropper ML, Fobil J, Fuster V, Greenstone M, Haines A, Hanrahan D, Hunter D, Khare M, Krupnick A, Lanphear B, Lohani B, Martin K, Mathiasen KV, McTeer MA, Murray CJL, Ndahimananjara JD, Perera F, Potočnik J, Preker AS, Ramesh J, Rockström J, Salinas C, Samson LD, Sandilya K, Sly PD, Smith KR, Steiner A, Stewart RB, Suk WA, van Schayck OCP, Yadama GN, Yumkella K, Zhong M. The Lancet Commission on pollution and health. Lancet. 2018 Feb 3;391(10119):462-512. doi: 10.1016/S0140-6736(17)32345-0. Epub 2017 Oct 19. Review. Erratum in: Lancet. 2018 Feb 3;391(10119):430.
- Li N, Georas S, Alexis N, Fritz P, Xia T, Williams MA, Horner E, Nel A. A work group report on ultrafine particles (American Academy of Allergy, Asthma & Immunology): Why ambient ultrafine and engineered nanoparticles should receive special attention for possible adverse health outcomes in human subjects. J Allergy Clin Immunol. 2016 Aug;138(2):386-96. doi: 10.1016/j.jaci.2016.02.023. Epub 2016 Apr 6. Review.
- Murrison LB, Brandt EB, Myers JB, Hershey GKK. Environmental exposures and mechanisms in allergy and asthma development. J Clin Invest. 2019 Apr 1;129(4):1504-1515. doi: 10.1172/JCI124612. Epub 2019 Feb 11. Review.
- Nathan RA, Sorkness CA, Kosinski M, Schatz M, Li JT, Marcus P, Murray JJ, Pendergraft TB. Development of the asthma control test: a survey for assessing asthma control. J Allergy Clin Immunol. 2004 Jan;113(1):59-65.
- Traina G, Barbalace A, Betti F, Bolzacchini E, Bonini M, Contini D, Felice G, Foti T, Mantecca P. What impact of air pollution in pediatric respiratory allergic diseases. Pediatr Allergy Immunol. 2020 Nov;31 Suppl 26:26-28. doi: 10.1111/pai.13362.
- AL2100004