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Larenas-Linnemann D, Morfín-Maciel BM, Gonzalez-Uribe V, Gallego-Corella CI, Rico-Solís GA, Hernández-Velázquez L, García-Imperial D, Caballero-Lopez CG, Garibay-Vargas OM, Gálvez-Romero JL, García Fajardo D, Barroso-Santos J, Pérez-Áviles HDJ, Luna-Pech JA, García-Cobas CY, Coronado-Hernández KG, Ortega-Cisneros M, González-Gutiérrez CH, Rivero-Yeverino D, Navarrete-Rodríguez EM, Lezama-Vázquez L, Rivera-Alvarado KL, Ochoa-López GG, Covarrubias-Ramírez SE, Reyes-Galindo CP, Bayardo-Gutiérrez B, Calderón-Ezquerro MDC. Changes in Skin Test Aeroallergen Sensitization in Mexico Over the Past 14 Years and According to Climate. J Asthma Allergy 2024; 17:733-742. [PMID: 39131602 PMCID: PMC11316480 DOI: 10.2147/jaa.s462694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 06/14/2024] [Indexed: 08/13/2024] Open
Abstract
Introduction Aeroallergen exposure has an intra- and extra-domiciliary component and varies according to climatological zones. Mexico is a large country with a great variety of climates. A previous study (2009) evaluated skin prick test results (SPT) in different regions. In this study, we compare previous sensitization patterns from 14y ago with current ones and compare them between different climatological zones. Methods Mexican allergists were asked to share their last 100 SPT results in patients with respiratory allergy. Clinics were grouped in (semi)humid vs (semi)dry zones. Results were analyzed nationwide and compared to the 2009 results, calculating odds ratio (OR) and 95% confidence intervals (95% CIs), with p <0.05 as cut-off. Similarly, we compared (semi)humid versus dry zones. Results We collected 2915 SPT results from 28 clinics (19 cities). Dermatophagoides was the most frequently sensitizing allergen. There was a significant increase in SPT positivity from 2009 to 2023 in both in- and outdoor aeroallergens (OR 1.26-2.65, 95% CI from 1.06-1.50 to 1.99-3.52). Comparing dry-humid zones, sensitization to pollen from Oleaceae, Fagaceae (p < 0.0001 all) and most weeds is more frequent in humid zones, as are Dermatophagoides and cockroach (both p < 0.0001). Eucalyptus, mesquite, and all grass pollen sensitizations predominate in dry zones (p < 0.05-0.0001). There are no differences in sensitization to cat or dog between zones. Conclusion We found a general increase in SPT sensitization over the past fourteen years, suggesting that this is probably not only due to climate change. The different sensitization profile throughout the country was mainly related to humidity. Repeating epidemiologic SPT studies over the years could help tracking changes in allergen sensitization over time.
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Affiliation(s)
| | | | | | | | - Germán Agustín Rico-Solís
- Hospital Regional Valentín Gómez Farías, Department of Allergy and Clinical Immunology, Colima, COL, Mexico
| | | | | | | | | | | | | | | | | | - Jorge Agustín Luna-Pech
- Departamento de Disciplinas Filosófico, Metodológico e Instrumentales, CUCS, Universidad de Guadalajara, JAL, Mexico
| | | | | | - Margarita Ortega-Cisneros
- Centro Médico Nacional de Occidente UMAE Hospital de Especialidades, Department of clinical immunology and allergy, Guadalajara, JAL, Mexico
| | | | - Daniela Rivero-Yeverino
- Hospital Universitario de Puebla, Benemérita Universidad Autónoma de Puebla, Puebla, PUE, Mexico
| | | | | | | | | | | | | | - Beatriz Bayardo-Gutiérrez
- Centro Médico Nacional de Occidente UMAE Hospital de Especialidades, Departamento de Inmunología Clínica y Alergia, Hospital Regional ISSSTE, Puebla, PUE, Mexico
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Suitable Interpretation of Skin Prick Test and Biomedical Guidance Leads to a Better Clinical State in Atopic Individuals with High Indoor Permanence: Possible Therapeutic Implications. Biologics 2021. [DOI: 10.3390/biologics1020014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Indoor conditions contribute to allergen sensitization and multiple allergens reactivity, mainly for inhaled allergens. This study analyzes if Skin Prick Test (SPT) combined with efficient individual biomedical guidance about allergy development’s social, biological, and environmental aspects can yield a better clinical state with therapeutic implications for atopic individuals with high indoor permanence. We recruited atopic and non-atopic volunteers (clinically and in vitro diagnosed) with indoor permanence above 15 h per day and without previous SPT evaluation. The SPT and serum anti-allergen IgE analyses were performed individually in person, demonstrated, and discussed by the practitioners. Six months after, SPT and specific IgE titers determination were repeated, and a questionnaire to evaluate the effectiveness of the practitioner’s orientation was performed. After six months, 14% of atopic volunteers reported changes in their social habits, 30% said that they avoid the development of allergies clinical symptoms, and 68% reported a substantial improvement in their health after being informed mentored about their allergen reactivity. The control non-atopic group, as expected, reported no changes in social habits, the maintenance of total avoidance of allergic symptoms, and almost no improvement of their health. Reduced SPT and serum allergen-specific IgE titers were detected in the atopic individuals corroborating with questionnaire results. Our results indicated that SPT, followed by an individual and efficient discussion about the main biomedical aspects of allergy development, could exert a pronounced therapeutic role in allergy development by high indoor permanence individuals.
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Angel A, Wandalsen GF, Solé D, Lanza FC, Cobra CL, Johnston C, Braga JAP. Asthma, allergic sensitization and lung function in sickle cell disease. Allergol Immunopathol (Madr) 2020; 48:450-457. [PMID: 32249096 DOI: 10.1016/j.aller.2019.12.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/30/2019] [Accepted: 12/17/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pulmonary disease is a frequent acute and chronic manifestation in sickle cell disease (SCD), presenting high morbidity and mortality. OBJECTIVES To identify the prevalence and association of asthma, allergic sensitization and altered pulmonary function in patients with SCD (SS and Sβo). METHODS A single-center, cross-sectional study was conducted, in which 70 patients with SCD and 44 controls, aged six to 18 years, responded to the questionnaire of the International Study of Asthma and Allergies in Childhood (ISAAC), complemented with an anamnesis regarding the associated clinical outcomes. All patients underwent immediate hypersensitivity skin tests with aeroallergens and a pulmonary function evaluation (spirometry). Regarding the statistical analysis, parametric and non-parametric methods were used, depending on the variables studied. Tests were considered significant when p<0.05. RESULTS There was no significant difference between the patients and controls regarding the prevalence of asthma and allergic sensitization (p>0.05). The number of occurrences of acute chest syndrome per patient per year was significantly higher for asthmatic patients than for non-asthmatic patients (p=0.04). Obstructive pulmonary function occurred in 30.9% of the patients and in 5.4% of the controls, and restrictive pulmonary function occurred in 5.5% of the patients and 5.4% of the controls. Asthma and wheezing in the last 12months had significant associations with obstructive pulmonary function (p=0.014 and p=0.027, respectively). CONCLUSIONS The occurrence of asthma, allergic sensitization and alteration in lung function in patients with SCD reinforces the importance of routine monitoring of these diagnoses, which allows for early treatment and prevention of the evolution of pulmonary disease in adulthood.
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Costa LDC, Camargos PAM, Brand PLP, Fiaccadori FS, de Lima Dias E Souza MB, das Dôres de Paula Cardoso D, de Araújo Castro Í, Minamisava R, Sucasas da Costa PS. Asthma exacerbations in a subtropical area and the role of respiratory viruses: a cross-sectional study. BMC Pulm Med 2018; 18:109. [PMID: 29970066 PMCID: PMC6029112 DOI: 10.1186/s12890-018-0669-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 06/12/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Multiple factors are involved in asthma exacerbations, including environmental exposure and viral infections. We aimed to assess the association between severe asthma exacerbations, acute respiratory viral infections and other potential risk factors. METHODS Asthmatic children aged 4-14 years were enrolled for a period of 12 months and divided into two groups: those with exacerbated asthma (group 1) and non-exacerbated asthma (group 2). Clinical data were obtained and nasopharyngeal samples were collected through nasopharyngeal aspirate or swab and analysed via indirect fluorescent immunoassays to detect influenza A and B viruses, parainfluenza 1-3, adenovirus and respiratory syncytial virus. Rhinovirus was detected via molecular assays. Potential risk factors for asthma exacerbation were identified in univariate and multivariate analyses. RESULTS In 153 children (group 1: 92; group 2: 61), median age 7 and 8 years, respectively, the rate of virus detection was 87.7%. There was no difference between groups regarding the frequency of virus detection (p = 0.68); however, group 1 showed a lower frequency (19.2%) of inhaled corticosteroid use (91.4%, p < 0.01) and evidence of inadequate disease control. In the multivariate analysis, the occurrence of three or more visits to the emergency room in the past 12 months (IRR = 1.40; p = 0.04) and nonadherence to inhaled corticosteroid (IRR = 4.87; p < 0.01) were the only factors associated with exacerbation. CONCLUSION Our results suggest an association between asthma exacerbations, poor disease control and nonadherence to asthma medication, suggesting that viruses may not be the only culprits for asthma exacerbations in this population.
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Affiliation(s)
- Lusmaia Damaceno Camargo Costa
- Pediatric Pulmonology Unit, University Hospital, Federal University of Goiás, Primeira Avenida, S/N. Setor Leste Universitária, Goiânia, CEP: 746050-20, Brazil.
| | | | - Paul L P Brand
- Princess Amalia Children's Centre, Isala Hospital, Zwolle, and UMCG Postgraduate School of Medicine, University Medical Centre and University of Groningen, Groningen, the Netherlands
| | - Fabíola Souza Fiaccadori
- Human Virology Department, Public Health and Tropical Pathology Institute, Federal University of Goiás, Goiânia, Brazil
| | | | | | - Ítalo de Araújo Castro
- Human Virology Department, Public Health and Tropical Pathology Institute, Federal University of Goiás, Goiânia, Brazil
| | - Ruth Minamisava
- Faculty of Nursing, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Paulo Sérgio Sucasas da Costa
- Pediatric Pulmonology Unit, University Hospital, Federal University of Goiás, Primeira Avenida, S/N. Setor Leste Universitária, Goiânia, CEP: 746050-20, Brazil
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Sakano E, Sarinho ESC, Cruz AA, Pastorino AC, Tamashiro E, Kuschnir F, Castro FFM, Romano FR, Wandalsen GF, Chong-Neto HJ, Mello JFD, Silva LR, Rizzo MC, Miyake MAM, Rosário Filho NA, Rubini NDPM, Mion O, Camargos PA, Roithmann R, Godinho RN, Pignatari SSN, Sih T, Anselmo-Lima WT, Solé D. IV Brazilian Consensus on Rhinitis - an update on allergic rhinitis. Braz J Otorhinolaryngol 2017; 84:S1808-8694(17)30187-8. [PMID: 29254864 PMCID: PMC9442845 DOI: 10.1016/j.bjorl.2017.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/16/2017] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION The guidelines on allergic rhinitis aim to update knowledge about the disease and care for affected patients. The initiative called "Allergic Rhinitis and its Impact on Asthma", initially published in 2001 and updated in 2008 and 2010, has been very successful in disseminating information and evidence, as well as providing a classification of severity and proposing a systemized treatment protocol. In order to include the participation of other medical professionals in the treatment of allergic rhinitis, it is important to develop algorithms that accurately indicate what should and can be done regionally. OBJECTIVE To update the III Brazilian Consensus on Rhinitis - 2012, with the creation of an algorithm for allergic rhinitis management. METHODS We invited 24 experts nominated by the Brazilian Association of Allergy and Immunology, Brazilian Association of Otorhinolaryngology and Head and Neck Surgery and Brazilian Society of Pediatrics to update the 2012 document. RESULTS The update of the last Brazilian Consensus on Rhinitis incorporated and adapted the relevant information published in all "Allergic Rhinitis and its Impact on Asthma" Initiative documents to the Brazilian scenario, bringing new concepts such as local allergic rhinitis, new drugs and treatment evaluation methods. CONCLUSION A flowchart for allergic rhinitis treatment has been proposed.
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Affiliation(s)
- Eulalia Sakano
- Universidade Estadual de Campinas (Unicamp), Faculdade de Ciências Médicas, Departamento de Oftalmologia e Otorrinolaringologia, Campinas, SP, Brazil; Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil.
| | - Emanuel S C Sarinho
- Universidade Federal de Pernambuco (UFPE), Faculdade de Medicina, Departamento de Pediatria, Recife, PE, Brazil; Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil
| | - Alvaro A Cruz
- Universidade Federal da Bahia (UFBA), Faculdade de Medicina, Departamento de Pediatria - Instituto da Criança, Salvador, BA, Brazil; Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil
| | - Antonio C Pastorino
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Department of Pediatrics - Instituto da Criança, São Paulo, SP, Brazil
| | - Edwin Tamashiro
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto (FMRP), Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Ribeirão Preto, SP, Brazil
| | - Fábio Kuschnir
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Universidade do Estado do Rio de Janeiro (UERJ), Faculdade de Medicina, Departamento de Pediatria, Rio de Janeiro, RJ, Brazil
| | - Fábio F M Castro
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Departamento de Medicina - Divisão de Imunologia Clínica e Alergia, São Paulo, SP, Brazil
| | - Fabrizio R Romano
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Divisão de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Gustavo F Wandalsen
- Universidade Federal de Pernambuco (UFPE), Faculdade de Medicina, Departamento de Pediatria, Recife, PE, Brazil; Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil
| | - Herberto J Chong-Neto
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Universidade Federal do Paraná (UFPR), Departamento de Pediatria, Curitiba, PR, Brazil
| | - João F de Mello
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Divisão de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Luciana R Silva
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Universidade Federal da Bahia (UFBA), Faculdade de Medicina, Departamento de Pediatria, Salvador, BA, Brazil
| | - Maria Cândida Rizzo
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade Cidade de São Paulo (UNICID), Faculdade de Medicina, São Paulo, SP, Brazil
| | - Mônica A M Miyake
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Hospital Sirio-Libanês, Núcleo de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Nelson A Rosário Filho
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade Federal do Paraná (UFPR), Departamento de Pediatria, Curitiba, PR, Brazil
| | - Norma de Paula M Rubini
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade Federal do Estado do Rio de Janeiro (UNIRIO), Departamento de Medicina, Divisão de Alergia e Imunologia, Rio de Janeiro, RJ, Brazil
| | - Olavo Mion
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Divisão de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Paulo A Camargos
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Universidade Federal de Minas Gerais (UFMG), Departamento de Pediatria, Divisão de Pneumologia, Belo Horizonte, MG, Brazil
| | - Renato Roithmann
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade Luterana do Brasil (ULBRA), Departamento de Otorrinolaringologia, Canoas, RS, Brazil
| | - Ricardo N Godinho
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Pontifícia Universidade Católica de Minas Gerais (PUC-MG), Instituto de Ciências Biológicas e da Saúde, Belo Horizonte, MG, Brazil
| | - Shirley Shizue N Pignatari
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Otorrinolaringologia, São Paulo, SP, Brazil
| | - Tania Sih
- Sociedade Brasileira de Pediatria, Rio de Janeiro, RJ, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina, Departamento de Medicina Legal, Ética Médica e Medicina Social e do Trabalho, São Paulo, SP, Brazil
| | - Wilma T Anselmo-Lima
- Associação Brasileira de Otorrinolaringologia e Cirurgia Crânio-Facial, São Paulo, SP, Brazil; Universidade de São Paulo (USP), Faculdade de Medicina de Ribeirão Preto (FMRP), Departamento de Oftalmologia, Otorrinolaringologia e Cirurgia de Cabeça e Pescoço, Ribeirão Preto, SP, Brazil
| | - Dirceu Solé
- Associação Brasileira de Alergia e Imunologia, São Paulo, SP, Brazil; Universidade Federal de São Paulo (UNIFESP), Escola Paulista de Medicina, Departamento de Pediatria - Divisão de Alergia, Imunologia Clínica e Reumatologia, São Paulo, SP, Brazil
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Garcia-Marcos L, Sánchez-Solís M. The fatum of preterm lungs: Every week counts. Allergol Immunopathol (Madr) 2016; 44:487-488. [PMID: 27836069 DOI: 10.1016/j.aller.2016.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Accepted: 10/25/2016] [Indexed: 10/20/2022]
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Repercussions of preterm birth on symptoms of asthma, allergic diseases and pulmonary function, 6-14 years later. Allergol Immunopathol (Madr) 2016; 44:489-496. [PMID: 27756492 DOI: 10.1016/j.aller.2016.04.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2015] [Revised: 03/29/2016] [Accepted: 04/27/2016] [Indexed: 11/23/2022]
Abstract
BACKGROUND Prevalence of allergic diseases and impaired pulmonary function may be high in children born prematurely. This study aimed to assess pulmonary function and prevalence of asthma, atopic diseases and allergic sensitisation in these patients. METHODS A cross-sectional study was conducted with children aged 6-14 years who were born prematurely with birth weight <2000g from January 2008 to May 2011. Exclusion criteria were: major malformations, or acute respiratory disorders. The International Study of Asthma and Allergies in Childhood questionnaire was applied followed by allergic skin prick test and spirometry. RESULTS The study included 84 children aged 9.3±2.3 years born at mean gestational age of 31.8±2.4 weeks. The prevalence of current asthma was 25%, more severe asthma was 15.5%; rhinitis was 38.1%; flexural eczema was 8.3%; and a positive skin-prick test was 69.6%. Frequencies of children with values <80% of predicted were: FVC (8.3%), FEV1 (22.6%), and FEV1/FVC ratio (16.7%). Prevalence of children with FEF25-75% <70% of the predicted value was 32.4%, positive bronchodilator response was observed in 20.5% of cases, and altered pulmonary function in 42.9%. Factors associated with altered pulmonary function were oxygen dependency at 28 days of life (OR: 4.213, p=0.021), the presence of wheezing in childhood (OR: 5.979, p=0.014) and infant's height (OR: 0.945, p=0.005). CONCLUSIONS There was a high prevalence of severe asthma, allergic sensitisation, and altered pulmonary function among children and adolescents born prematurely. Bronchopulmonary dysplasia and a history of wheezing were risk factors for altered pulmonary function.
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Caraballo L, Zakzuk J, Lee BW, Acevedo N, Soh JY, Sánchez-Borges M, Hossny E, García E, Rosario N, Ansotegui I, Puerta L, Sánchez J, Cardona V. Particularities of allergy in the Tropics. World Allergy Organ J 2016; 9:20. [PMID: 27386040 PMCID: PMC4924335 DOI: 10.1186/s40413-016-0110-7] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 05/25/2016] [Indexed: 12/27/2022] Open
Abstract
Allergic diseases are distributed worldwide and their risk factors and triggers vary according to geographical and socioeconomic conditions. Allergies are frequent in the Tropics but aspects of their prevalence, natural history, risk factors, sensitizers and triggers are not well defined and some are expected to be different from those in temperate zone countries. The aim of this review is to investigate if allergic diseases in the Tropics have particularities that deserve special attention for research and clinical practice. Such information will help to form a better understanding of the pathogenesis, diagnosis and management of allergic diseases in the Tropics. As expected, we found particularities in the Tropics that merit further study because they strongly affect the natural history of common allergic diseases; most of them related to climate conditions that favor permanent exposure to mite allergens, helminth infections and stinging insects. In addition, we detected several unmet needs in important areas which should be investigated and solved by collaborative efforts led by the emergent research groups on allergy from tropical countries.
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Affiliation(s)
- Luis Caraballo
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Josefina Zakzuk
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Bee Wah Lee
- />Khoo Teck Puat- National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- />Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Nathalie Acevedo
- />Department of Medicine Solna, Karolinska Institutet, Translational Immunology Unit, Stockholm, Sweden
| | - Jian Yi Soh
- />Khoo Teck Puat- National University Children’s Medical Institute, National University Health System, Singapore, Singapore
- />Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Mario Sánchez-Borges
- />Allergy and Clinical Immunology Department, Centro Médico- Docente La Trinidad and Clínica El Avila, Caracas, Venezuela
| | - Elham Hossny
- />Pediatric Allergy and Immunology Unit, Children’s Hospital, Ain Shams University, Cairo, Egypt
| | - Elizabeth García
- />Allergy Section, Fundación Santa Fe de Bogotá, Faculty of Medicine, Universidad de los Andes, Bogotá, Colombia
| | - Nelson Rosario
- />Federal University of Parana, Rua General Carneiro, Curitiba, Brazil
| | - Ignacio Ansotegui
- />Department of Allergy and Immunology, Hospital Quirón Bizkaia, Bilbao, Spain
| | - Leonardo Puerta
- />Institute for Immunological Research, University of Cartagena, Cra. 5 # 7-77, Cartagena, Colombia
| | - Jorge Sánchez
- />Department of Pediatrics, Graduate Program on Allergology, University of Antioquia, Medellín, Colombia
| | - Victoria Cardona
- />Allergy Section, Department of Internal Medicine, Hospital Vall d’Hebron, Barcelona, Spain
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Di Francesco RC, Alvarez J. Allergic rhinitis affects the duration of rapid eye movement sleep in children with sleep-disordered breathing without sleep apnea. Int Forum Allergy Rhinol 2016; 6:465-71. [DOI: 10.1002/alr.21689] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 09/26/2015] [Accepted: 10/22/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Renata C. Di Francesco
- Department of Otolaryngology; Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; São Paulo Brazil
| | - Jessica Alvarez
- Department of Otolaryngology; Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo; São Paulo Brazil
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Solé D, Camelo-Nunes IC, Wandalsen GF, Mallozi MC. Asthma in children and adolescents in Brazil: contribution of the International Study of Asthma and Allergies in Childhood (ISAAC). ACTA ACUST UNITED AC 2015; 32:114-25. [PMID: 24676199 PMCID: PMC4182995 DOI: 10.1590/s0103-05822014000100018] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Accepted: 05/22/2013] [Indexed: 11/23/2022]
Abstract
Objective: To assess asthma among Brazilian pediatric population applying the International
Study of Asthma and Allergies in Childhood (ISAAC), an internationally
standardized and validated protocol. Data sources: ISAAC was conceived to maximize the value of epidemiologic studies on asthma and
allergic diseases, establishing a standardized method (self-applicable written
questionnaire and/or video questionnaire) capable to facilitate the international
collaboration. Designed to be carried out in three successive and dependent
phases, the ISAAC gathered a casuistic hitherto unimaginable in the world and in
Brazil. This review included data gathered from ISAAC official Brazilian centers
and others who used this method. Data synthesis: At the end of the first phase, it has been documented that the prevalence of
asthma among Brazilian schoolchildren was the eighth among all centers
participating all over the world. Few centers participated in the second phase and
investigated possible etiological factors, especially those suggested by the first
phase, and brought forth many conjectures. The third phase, repeated seven years
later, assessed the evolutionary trend of asthma and allergic diseases prevalence
in centers that participated simultaneously in phases I and III and in other
centers not involved in phase I. Conclusions: In Brazil, the ISAAC study showed that asthma is a disease of high prevalence and
impact in children and adolescents and should be seen as a Public Health problem.
Important regional variations, not well understood yet, and several risk factors
were found, which makes us wonder: is there only one or many asthmas in Brazil?
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Affiliation(s)
- Dirceu Solé
- Departamento de Pediatria, Escola Paulista de Medicina, Unifesp, Sao Paulo, SP, Brasil
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Moreira PFDS, Gangl K, Vieira FDAM, Ynoue LH, Linhart B, Flicker S, Fiebig H, Swoboda I, Focke-Tejkl M, Taketomi EA, Valenta R, Niederberger V. Allergen Microarray Indicates Pooideae Sensitization in Brazilian Grass Pollen Allergic Patients. PLoS One 2015; 10:e0128402. [PMID: 26067084 PMCID: PMC4465745 DOI: 10.1371/journal.pone.0128402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Accepted: 02/26/2015] [Indexed: 11/19/2022] Open
Abstract
Background Grass pollen, in particular from Lolium multiflorum is a major allergen source in temperate climate zones of Southern Brazil. The IgE sensitization profile of Brazilian grass pollen allergic patients to individual allergen molecules has not been analyzed yet. Objective To analyze the IgE sensitization profile of a Brazilian grass pollen allergic population using individual allergen molecules. Methods We analyzed sera from 78 grass pollen allergic patients for the presence of IgE antibodies specific for 103 purified micro-arrayed natural and recombinant allergens by chip technology. IgE-ELISA inhibition experiments with Lolium multiflorum, Phleum pratense extracts and a recombinant fusion protein consisting of Phl p 1, Phl p 2, Phl p 5 and Phl p 6 were performed to investigate cross-reactivities. Results Within the Brazilian grass pollen allergic patients, the most frequently recognized allergens were Phl p 1 (95%), Phl p 5 (82%), Phl p 2 (76%) followed by Phl p 4 (64%), Phl p 6 (45%), Phl p 11 (18%) and Phl p 12 (18%). Most patients were sensitized only to grass pollen allergens but not to allergens from other sources. A high degree of IgE cross-reactivity between Phleum pratense, Lolium multiflorum and the recombinant timothy grass fusion protein was found. Conclusions Component-resolved analysis of sera from Brazilian grass pollen allergic patients reveals an IgE recognition profile compatible with a typical Pooideae sensitization. The high degree of cross-reactivity between Phleum pratense and Lolium multiflorum allergens suggests that diagnosis and immunotherapy can be achieved with timothy grass pollen allergens in the studied population.
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Affiliation(s)
- Priscila Ferreira de Sousa Moreira
- Laboratory of Allergy and Clinical Immunology, Biomedical Science Institute, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Katharina Gangl
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Leandro Hideki Ynoue
- Laboratory of Allergy and Clinical Immunology, Biomedical Science Institute, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Birgit Linhart
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Sabine Flicker
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | | | - Ines Swoboda
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Margarete Focke-Tejkl
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Ernesto Akio Taketomi
- Laboratory of Allergy and Clinical Immunology, Biomedical Science Institute, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Rudolf Valenta
- Christian Doppler Laboratory for Allergy Research, Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- * E-mail:
| | - Verena Niederberger
- Department of Otorhinolaryngology, Medical University of Vienna, Vienna, Austria
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Villa-Nova H, Spinola-Castro AM, Garcia FE, Solé D. Prevalence of allergic diseases and/or allergic sensitisation in children and adolescents with type 1 diabetes mellitus. Allergol Immunopathol (Madr) 2015; 43:157-61. [PMID: 25092354 DOI: 10.1016/j.aller.2013.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 11/07/2013] [Indexed: 01/12/2023]
Abstract
BACKGROUND The prevalence of atopic diseases in children with type 1 diabetes mellitus (DM1) has been reported as lower. The aim of this study was to evaluate the prevalence of allergic diseases and allergic sensitisation in Brazilian children and adolescents with DM1. PATIENTS AND METHODS 96 patients with DM1 (aged 4-18 years, 45 boys) followed for at least one year were evaluated for allergic disease through a detailed allergological anamnesis and skin prick tests (SPT) to inhalant allergens (Dermatophagoides pteronyssinus, D. farinae, Blomia tropicalis, Blattella germanica, Periplaneta americana, dog epithelium, cat epithelium, mix fungi), foods (cow's milk, egg-white, yolk, soy, wheat, corn), and positive (histamine 1 mg/ml) and negative (saline) controls. Wheals with a mean diameter of induration equal to or greater than 3mm identified a positive SPT. RESULTS The prevalence values of rhinitis, asthma and atopic eczema (isolated or associated) were 68.0%, 59.1% and 44.4%, respectively. 20.6% of the patients had no allergic disease. 46.8% of the patients had been diagnosed with DM1 for at least four years and there was no relationship between the period of DM1 and the presence of allergic disease, nor of the gender. 48.0% patients were sensitised with predominance of D. pteronyssinus, B. topicalis and D. farinae. The frequency of positive SPT was significantly higher among patients with history of allergic disease (OR=6.98, 95%CI: 2.60-18.74, p<0.001). CONCLUSION The prevalence of allergic diseases and sensitisation in patients with DM1 was higher than usually expected and deserves further investigation to identify possible causes for these findings and to evaluate their importance and influence on the metabolic control.
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Affiliation(s)
- H Villa-Nova
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Federal University of São Paulo-Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil
| | - A M Spinola-Castro
- Division of Endocrinology, Department of Pediatrics, Federal University of São Paulo-Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil
| | - F E Garcia
- Division of Endocrinology, Department of Pediatrics, Federal University of São Paulo-Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil
| | - D Solé
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Federal University of São Paulo-Escola Paulista de Medicina (UNIFESP-EPM), São Paulo, SP, Brazil.
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Caniatti MCDCL, Marchioro AA, Guilherme ALF, Tsuneto LT. Association of cytokines in individuals sensitive and insensitive to dust mites in a Brazilian population. PLoS One 2014; 9:e107921. [PMID: 25238536 PMCID: PMC4169580 DOI: 10.1371/journal.pone.0107921] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 08/24/2014] [Indexed: 01/25/2023] Open
Abstract
Introduction Allergic reaction to dust mites is a relatively common condition among children, triggering cutaneous and respiratory responses that have a great impact on the health of this population. Anaphylactic hypersensitivity is characterized by an exacerbated response involving the production of regulatory cytokines responsible for stimulating the production of IgE antibodies. Objective To investigate an association of variants in cytokine genes (IL1A−889, IL1B−511, +3962, IL1R1970, IL1RA11100, IL4RA+1902, IL12−1188, IFNG+874, TGFB1codon 10, codon 25, TNFA−308, −238, IL2−330, +166, IL4−1098, −590, −33, IL6−174, nt565, and IL10−1082, −819, −592) between patients sensitive to dust mites and a control group. Methods A total of 254 patients were grouped as atopic and non-atopic according to sensitivity as evaluated by the Prick Test and to cytokine genotyping by the polymerase chain reaction-sequence specific primers (PCR-SSP) method using the Cytokine Genotyping Kit. Results A comparison between individuals allergic to Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Blomia tropicalis and a non-atopic control group showed significant differences between allele and genotype frequencies in the regulatory regions of cytokine genes, with important evidence for IL4−590 in T/C (10.2% vs. 43.1%, odd ratio [OR] = 0.15, p = 5.2 10−8, pc = 0.0000011, and 95% confidence interval [95%CI] = 0.07–0.32) and T/T genotypes (42.9% vs. 13.8%, OR = 4.69, p = 2.5 10−6, pc = 0.000055, and 95%CI = 2.42–9.09). Other associations were observed in the pro-inflammatory cytokines IL1A−889 (T/T, C, and T) and IL2−330 (G/T and T/T) and the anti-inflammatory cytokines IL4RA+1902 (A and G), IL4−590 (T/C, T/T, C, and T), and IL10−592 (A/A, C/A, A, and C). Conclusion Our results suggest a possible association between single nucleotide polymorphisms (SNPs) in cytokine genes and hypersensitivity to dust mites.
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Affiliation(s)
| | - Ariella Andrade Marchioro
- Post-Graduate Program in Health Sciences, Universidade Estadual de Maringá (UEM), Maringá, Paraná, Brazil
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Hossny E, El-Sayed S, Abdul-Rahman N. Sensitivity to Five Types of House Dust Mite in a Group of Allergic Egyptian Children. PEDIATRIC ALLERGY IMMUNOLOGY AND PULMONOLOGY 2014; 27:133-137. [PMID: 25276487 DOI: 10.1089/ped.2014.0333] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 01/28/2014] [Accepted: 08/02/2014] [Indexed: 11/13/2022]
Abstract
Background: The published data on house dust mite (HDM) sensitization from Egypt are scanty. We sought to investigate the sensitization to five different types of HDM among a group of allergic children in a trial to outline the most frequent sensitizing strains in the Cairo Province. Methods: We consecutively enrolled 100 asthmatic patients, aged 1-7 years, of whom 22 had concomitant skin allergy. Skin prick testing was performed using allergen extracts of Dermatophagoides pteronyssinus, Dermatophagoides farinae, Lepidoglyphus destructor, Tyrophagus putrescentiae, and Acarus siro. Results: Twenty-four patients (24%) were sensitized to one or more strains of HDM. Sensitization to one strain was revealed in 12% of the studied sample, while sensitization to two or three strains was detected in 8% and 4% respectively. Twelve percent of the enrolled children were sensitive to D. pteronyssinus, 11% to D. farinae, 7% to L. destructor, 6% to T. putrescentiae, and 4% to A. siro. Eight out of the 12 (66%) children sensitive to one strain had mild intermittent asthma, while five out of eight (62.5%) sensitive to two strains had moderate persistent asthma. All children sensitized to three strains of HDM had persistent rather than intermittent asthma. HDM sensitization did not correlate significantly to the history of sun exposure, bed mattresses and pillows, living in farms, or exposure to stored grains. The co-existence of atopic dermatitis tended to have a higher rate of HDM sensitization. Conclusion:D. pteronyssinus and D. farinae represent the most common sensitizing strains in the studied sample. Wider-scale population-based studies are needed to assess the prevalence of HDM allergy and its clinical correlates in our country.
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Affiliation(s)
- Elham Hossny
- Pediatric Allergy and Immunology, Ain Shams University , Cairo, Egypt
| | - Shereen El-Sayed
- Pediatric Allergy and Immunology, Ain Shams University , Cairo, Egypt
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Barreto B, Sole D. Prevalence of asthma and associated factors in adolescents living in Belem (Amazon region), Para, Brazil. Allergol Immunopathol (Madr) 2014; 42:427-32. [PMID: 24268423 DOI: 10.1016/j.aller.2013.02.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2013] [Accepted: 02/26/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND The prevalence of asthma in the Brazilian Amazon region is unknown. We studied the prevalence of asthma and associated factors in adolescents (13-14 years old) living in Belem, a large urban centre in this region. METHODS 3725 adolescents were evaluated according to the International Study of Asthma and Allergies in Childhood (ISAAC) protocol and a random sample of them (126 asthmatics and 254 non-asthmatics) were assessed for possible risk factors by a supplementary questionnaire (ISAAC Phase II) and skin prick tests with aeroallergens. The association between asthma and associated factors was determined by logistic regression analysis. RESULTS 3708 adolescents were enrolled, 48% were male. The prevalence of asthma in the last 12 months (identified as asthmatics) and the medical diagnosis of asthma were 20.7% and 29.3%, respectively. Risk factors significantly associated with asthma were: previous diagnosis of tuberculosis (odds ratio [OR]=38.9; 95% confidence interval [95% CI]: 4.6-328.0) and measles (OR=4.7; 95% CI: 2.3-9.8), breastfeeding for any length of time (OR=4.2; 95% CI: 1.1-15.2), current rhinitis (OR=3.2; 95% CI: 1.8-5.9), exposure to smokers (OR=2.4; 95% CI: 1.2-4.5), moisture in home (OR=1.8; 95% CI: 1.1-3.2) and rhinitis diagnosed by physician (OR=1.7; 95% CI: 1.2-2.9). Sensitisation to at least one aeroallergen was significantly higher among asthmatic adolescents (86.5% vs. 32.4%; p<0.0001). CONCLUSIONS The prevalence of asthma was similar to that observed in other Brazilian centres. Physician-diagnosed asthma was more frequent than the presence of symptoms suggestive of asthma. Infectious diseases, nutritional and environmental factors, as well as concomitant allergic rhinitis, were the main risk factors associated with the development of asthma in these adolescents.
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Rosario-Filho NA, Jacob CM, Sole D, Condino-Neto A, Arruda LK, Costa-Carvalho B, Cocco RR, Camelo-Nunes I, Chong-Neto HJ, Wandalsen GF, Castro APM, Yang AC, Pastorino AC, Sarinho ES. Pediatric allergy and immunology in Brazil. Pediatr Allergy Immunol 2013; 24:402-9. [PMID: 23578336 DOI: 10.1111/pai.12069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/17/2013] [Indexed: 12/30/2022]
Abstract
The subspecialty of pediatric allergy and immunology in Brazil is in its early years and progressing steadily. This review highlights the research developed in the past years aiming to show the characteristics of allergic and immunologic diseases in this vast country. Epidemiologic studies demonstrated the high prevalence of asthma in infants, children, and adolescents. Mortality rates and average annual variation of asthma hospitalization have reduced in all pediatric age groups. Indoor aeroallergen exposure is excessively high and contributes to the high rates of allergy sensitization. Prevalence of food allergy has increased to epidemic levels. Foods (35%), insect stings (30%), and drugs (23%) are the main etiological agents of anaphylaxis in children and adolescents. Molecular diagnosis of primary immunodeficiencies (PID) showed a high incidence of fungal infections including paracoccidioidomycosis in X-linked hyper-IgM syndrome, and the occurrence of BCG adverse reactions or other mycobacterial infections in patients with chronic granulomatous disease. Education in pediatric allergy and immunology is deficient for medical students, but residency programs are effective in training internists and pediatricians for the practice of allergy. The field of PID requires further training. Last, this review is a tribute to Prof. Dr. Charles Naspitz, one of the pioneers of our specialty in Brazil.
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Falcai A, Pereira PVS, Kubo CA, Rullo V, Errante PR, Solé D, Condino-Neto A. Leukocytes from wheezing infants release lower amounts of IL-12 and IFN-γ compared to non-wheezing infants. Pediatr Pulmonol 2012; 47:1054-60. [PMID: 22644662 DOI: 10.1002/ppul.22598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 02/07/2012] [Accepted: 02/07/2012] [Indexed: 11/07/2022]
Abstract
OBJECTIVE This study investigated environmental endotoxin exposure during early life, sensitization to aeroallergens, the production of cytokines by LPS-stimulated leukocytes, and the development of a wheezing phenotype in a prospective cohort of infants with high risk of developing allergic diseases. MATERIALS AND METHODS Eighty-four infants were followed from birth until 30 months of age. We assessed endotoxin concentration in house dust of their homes during the first 6 months of life. At age 30 months they were clinically evaluated to determine the development of wheezing and other clinical events, were skin prick tested, and had blood samples collected for the evaluation of cytokine release by LPS-stimulated peripheral blood mononuclear cells (PBMC). RESULTS The level of endotoxin exposure during early life was not associated with development of a wheezing phenotype. On the other hand a higher incidence of respiratory infections occurred among recurrent wheezing (RW) infants. PBMC from RW children exposed to higher levels of environmental endotoxin (above 50 EU/mg) released less Interleukin (IL)-12p70 and IFN-γ compared to the non-RW group. TNF-α, IL-10, IL-4, IL-5, and IL17 production by LPS-stimulated PBMC from RW and non-RW children was equivalent in both groups of environmental endotoxin exposure. CONCLUSION In this prospective cohort of infants with high risk of developing allergic diseases we observed that RW and non-RW children were exposed to similar levels of endotoxin early in life. LPS-stimulated PBMC from RW infants exposed to higher levels of endotoxin released significantly less IL-12 and IFN-γ compared to non-RW infants.
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Affiliation(s)
- Angela Falcai
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo-SP, Brazil
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Risk factors for asthma in a helminth endemic area in bahia, Brazil. J Parasitol Res 2012; 2012:796820. [PMID: 22970348 PMCID: PMC3432556 DOI: 10.1155/2012/796820] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 06/16/2012] [Accepted: 07/05/2012] [Indexed: 11/17/2022] Open
Abstract
Protective factors associated with atopy or asthma in rural areas include socioeconomic level, overcrowding, and helminth infection. However, little epidemiological information was originated from schistosomiasis areas. This study aimed to investigate factors associated with asthma in a schistosomiasis endemic area. A questionnaire was used to obtain information on demographics, socioeconomic, and environmental features. The ISAAC questionnaire was used to identify individuals with asthma. Parasitological exam was done in all participants and skin prick test to aeroallergens in all asthmatics. Prevalence of Schistosoma mansoni infection was 57.4% and Ascaris lumbricoides, 30.8%. Asthma was found in 13.1% of the population, and 35.1% of them had a positive SPT. Active and passive smoking was positively associated with asthma, whereas A. lumbricoides was negatively associated. In a schistosomiasis hyperendemic region, current infection with A. lumbricoides is protective against asthma. However, we cannot rule out the involvement of S. mansoni infection in this process.
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Nyembue TD, Ntumba W, Omadjela LA, Muyunga C, Hellings PW, Jorissen M. Sensitization rate and clinical profile of Congolese patients with rhinitis. ALLERGY & RHINOLOGY 2012; 3:e16-24. [PMID: 22852125 PMCID: PMC3404473 DOI: 10.2500/ar.2012.3.0023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In the African continent, the sensitization pattern and clinical profile are unknown in patients with rhinitis/rhinosinusitis attending the outpatient ear, nose, and throat (ENT) clinics. We therefore aimed to analyze the clinical characteristics of rhinitis/rhinosinusitis patients in Democratic Republic of Congo (DRC), classify allergic rhinitis (AR) according to the Allergic Rhinitis and Its Impact on Asthma criteria, and evaluate the sensitization profile and its associated factors. From January to May 2009, 423 patients with rhinitis symptoms attending the Outpatient ENT clinic of the University Hospital and Saint Joseph Hospital of Kinshasa were evaluated for allergy symptoms, severity, and duration of symptoms and underwent skin-prick tests (SPTs) for a panel of 15 allergens. Of 423 patients 35.2% had positive SPT results, with 40.9% showing polysensitization. Dermatophagoides pteronyssinus (DPT) (68.5%) and cockroach (36.2%) were the most common allergens among sensitized patients. Patients with rhinitis/rhinosinusitis mainly presented in decreasing order with sneezing, facial pain/pressure, nasal obstruction, postnasal discharge, nose itching, clear nasal discharge, and eye itching. Persistent and moderate/severe AR represented 61.4 and 69.3%, respectively. Sensitization was independently associated with younger age, rhinoconjunctivitis, and reaction to nonspecific trigger factors. In conclusion, 35.2% of patients attending the ENT Outpatient Clinic in DRC for rhinitis problems had a positive SPT to at least one allergen, with mainly DPT and cockroach allergens being involved; and a substantial portion showed persistent and moderate/severe AR. Therefore, allergy should not be neglected as an etiologic factor in rhinologic disease in the African continent.
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Valle SOR, Kuschnir FC, Solé D, Silva MAV, Silva RI, Da Cunha AJLA. Validity and reproducibility of the asthma core International Study of Asthma and Allergies in Childhood (ISAAC) written questionnaire obtained by telephone survey. J Asthma 2012; 49:390-4. [PMID: 22468697 DOI: 10.3109/02770903.2012.669440] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To assess the reproducibility and validity of the International Study of Asthma and Allergies in Childhood (ISAAC) asthma written questionnaire (IAWQ) for 6- to 7-year-old children administered to their parents/caregivers through a telephone interview. METHODS Our study included 100 children selected from three health units in Rio de Janeiro, Brazil. In total, 50 asthmatic and 50 non-asthmatic children were evaluated; all participants were required to own a household telephone line. Initially, telephone interviews were conducted with the parents/caregivers using the IAWQ. After 2 weeks, parents/caregivers were invited to complete the IAWQ under supervision provided by the researchers. After fifteen days, the telephone interviews were repeated. The reproducibility between the two telephone interviews was assessed using kappa (κ) coefficients; the construct validity was assessed by comparing the answers obtained in the initial telephone interview in both groups according to the clinical diagnosis of asthma performed by a specialist using sensitivity and specificity coefficients. RESULTS Overall, data from 75 children (39 asthmatics) were analyzed, as 25 patients were excluded from the study (11 did not answer phone calls and the responding parents/caregivers for 14 patients were not the same in all study phases). Perfect agreement was observed for the indicator "wheezing in the last 12 months" (κ = 1), while substantial agreement was observed for the "wheezing with exercise," "speech limited by wheezing," and "asthma ever" indicators (κ range, 0.7-0.8). The sensitivity and specificity for "wheezing within the last 12 months" were 64.1% (95% confidence interval (CI), 47.2-78.8) and 88.9% (95% CI, 73.9-96.9), respectively. For the "asthma ever" indicator, the sensitivity and specificity were 87.2% (95% CI, 77.6-95.7) and 100% (95% CI, 90.3-1), respectively. Questionnaire specificity was high for all asthma severity indicators. CONCLUSIONS The IAWQ for children aged 6-7 years adapted for telephone interviews showed good reproducibility and adequate validity with an ability to distinguish between asthmatic and non-asthmatic participants. Thus, this method could be utilized in epidemiological studies on childhood asthma in locations where telephone lines are available.
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Kinchoku VM, Oliveira IS, Watanabe LA, Fomin ÂBF, Castro APBM, Jacob CMA, Pastorino AC. Fatores associados ao controle da asma em pacientes pediátricos em centro de referência. REVISTA PAULISTA DE PEDIATRIA 2011. [DOI: 10.1590/s0103-05822011000400019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
OBJETIVO: Descrever os dados epidemiológicos, clínicos e os fatores associados ao controle da asma em pacientes asmáticos seguidos em um ambulatório pediátrico especializado. MÉTODOS: Estudo transversal de pacientes asmáticos ambulatoriais, para os quais eram fornecidas medicações profiláticas. A classificação da asma, as etapa de tratamento e a avaliação do controle seguiram a IV Diretrizes Brasileiras para o Manejo da Asma, de 2006. Os fatores avaliados foram: outras alergias, obesidade, imunodeficiências, refluxo gastresofágico e sensibilização alérgica, sendo comparados pacientes com asma controlada ou não com relação à etapa do tratamento, à obesidade e à sensibilização alérgica. RESULTADOS: Foram analisados 300 pacientes com asma (1,38M:1F), com mediana de idade de 10,8 anos, e de início dos sintomas de 1,0 ano. A atopia estava presente em 78% dos pais e/ou irmãos. Antecedentes pessoais de doenças alérgicas ocorreram em 292 pacientes (96% rinite, 27% dermatite atópica, 18% conjuntivite alérgica, 6% alergia alimentar). Foram diagnosticados sete casos de deficiência de IgA (DIgA) e quatro de IgG2; obesidade em 37/253 (15%), sendo que sobrepeso e obesidade estiveram associados à falta de controle (p=0,023). Em 118 pacientes com multissensibilização, predominaram casos não controlados (22 (19%) casos; p=0,049; OR 1,9; IC95% 1,03-3,50). Entre os 180 casos (60%) em tratamento nas etapas 3 e 4, 122 (45%) estavam controlados e 112 (41%) parcialmente controlados. CONCLUSÕES: A rinite foi a alergia mais associada à asma e a prevalência de DIgA foi 20 vezes maior do que na população geral. O controle parcial ou total dos sintomas da asma foi obtido em 85% dos casos. Obesidade/sobrepeso e multissensibilização foram associadas à falta de controle da asma.
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Katelaris CH, Lee BW, Potter PC, Maspero JF, Cingi C, Lopatin A, Saffer M, Xu G, Walters RD. Prevalence and diversity of allergic rhinitis in regions of the world beyond Europe and North America. Clin Exp Allergy 2011; 42:186-207. [PMID: 22092947 DOI: 10.1111/j.1365-2222.2011.03891.x] [Citation(s) in RCA: 149] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 09/01/2011] [Accepted: 09/02/2011] [Indexed: 11/30/2022]
Abstract
BACKGROUND There is comparatively little information in the public domain on the diversity in prevalence and triggers/factors associated with allergic rhinitis (AR) or allergic rhinoconjunctivitis (AR/C) in countries beyond western-Europe and North America. OBJECTIVE To review the prevalence and the sensitizing agents/triggers and factors associated with AR/C in several countries in Africa, the Asia-Pacific region, Australia, Eastern Europe, Latin America, Middle East and Turkey. METHODS Articles published in English in peer-reviewed journals were assessed and selected for further review, following an extensive literature search using the Medline database. RESULTS This review demonstrated that prevalence of AR and AR/C in these regions has predominantly been investigated in children; with studies indicating wide inter- and intra-regional variations ranging from 2.9% AR and 3.8% AR/C in 10-18-years-old children from one region in Turkey to 54.1% AR and 39.2% AR/C in 13-14-years-old children in one region in Nigeria. Moreover, the prevalence of AR and AR/C has increased markedly over the last decade particularly in some of the more affluent African countries, China-Taiwan and several Middle East countries, likely as a consequence of improved living standards leading to increased exposure to multiple traditional and non-traditional sensitizing agents and risk factors similar to those noted in western-Europe and North America. CONCLUSIONS AND CLINICAL RELEVANCE Our findings suggest that the greater diversity in prevalence of AR or AR/C in populations in these regions is in contrast to the lower diversity of AR or AR/C in the 'western populations (USA and Europe), which tend to be more uniform. This review provides a comprehensive database of the important allergens and triggers which are likely to influence the prevalence of allergic rhinitis in these diverse regions, where the prevalence of allergic rhinitis is increasing and its adverse impact on the quality of life of affected individuals is increasingly recognised.
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Affiliation(s)
- C H Katelaris
- Immunology & Allergy, Campbelltown Hospital, University of Western Sydney, New South Wales, Australia
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23
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Sheehan WJ, Rangsithienchai PA, Baxi SN, Gardynski A, Bharmanee A, Israel E, Phipatanakul W. Age-specific prevalence of outdoor and indoor aeroallergen sensitization in Boston. Clin Pediatr (Phila) 2010; 49:579-85. [PMID: 20075031 PMCID: PMC3334836 DOI: 10.1177/0009922809354326] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Questions exist regarding the appropriate age for referral of an atopic child to an allergist for environmental skin prick testing. This study evaluates age-specific prevalence of sensitization to aeroallergens from infancy through adolescence. A total of 1394 patients were skin tested, with 57.2% being sensitized to at least 1 aeroallergen. In children younger than 2, the authors found that 26.5% were sensitized, including to dogs (15.5%) and cats (9.2%). Additionally, tree sensitization was demonstrated in the youngest age group (7.8% at 0-2 years; 17.1% at 2-4 years), including in 3 infants less than 1 year old. Sensitization rates to dust mites and trees were the highest in all ages above 4 years, with a peak tree sensitization of 56.4% at 10 to 12 years and a peak dust mite sensitization of 56.8% in the >12 group. Overall, the authors observed increasing sensitization rates throughout childhood for indoor and outdoor aeroallergens (P < .001). Aeroallergen sensitization begins at a young age and increases during childhood.
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Affiliation(s)
- William J. Sheehan
- Children’s Hospital Boston, MA, USA,Harvard Medical School, Boston, MA, USA
| | - Pitud A. Rangsithienchai
- Children’s Hospital Boston, MA, USA,McGaw Medical Center, Northwestern University, Evanston Program, Evanston, IL, USA
| | - Sachin N. Baxi
- Children’s Hospital Boston, MA, USA,Harvard Medical School, Boston, MA, USA
| | | | - Apinya Bharmanee
- Children’s Hospital Boston, MA, USA,Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Elliot Israel
- Harvard Medical School, Boston, MA, USA,Brigham and Women’s Hospital, Boston, MA, USA
| | - Wanda Phipatanakul
- Children’s Hospital Boston, MA, USA,Harvard Medical School, Boston, MA, USA
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Sarinho E, Mariano J, Sarinho S, Medeiros D, Rizzo J, Almerinda R S, Solé D. Sensitisation to aeroallergens among asthmatic and non-asthmatic adolescents living in a poor region in the Northeast of Brazil. Allergol Immunopathol (Madr) 2009; 37:239-43. [PMID: 19853356 DOI: 10.1016/j.aller.2009.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2009] [Revised: 03/22/2009] [Accepted: 03/23/2009] [Indexed: 11/25/2022]
Abstract
OBJECTIVES To assess the kind and frequency of sensitisation to aeroallergens (skin prick test - SPT) of asthmatic and non-asthmatic adolescents (13-14 years old) living in the city of Caruaru, Northeast of Brazil, and to analyse their exposure to some environmental factors. METHOD A case-control study was conducted with asthmatic (50) and non-asthmatic (150) adolescents diagnosed by the International Study of Asthma and Allergies in Childhood (ISAAC) written questionnaire. All were submitted to SPT with aeroallergens (house dust mites, cat and dog epithelium, cockroaches, moulds and grass) and completed a questionnaire to evaluate their environmental exposure. RESULTS There were no significant differences between groups regarding gender, age, number of siblings and environmental exposure. Asthmatic subjects exhibited a higher frequency of positive SPTs than non-asthmatic subjects (54.0% vs 33.3%, p=0.009) mainly due to Periplaneta americana (34.0% vs 12.7%, p=0.0007 respectively) and Canis familiaris (20.0% vs 8.7%, p=0.029). CONCLUSION Although sensitisation to aeroallergens was high among non-asthmatic adolescents, asthma was associated with parental history of atopic disease and sensitisation to P. americana and Canis familiaris but not to D. pteronyssinus showing that local studies are mandatory for the tailoring of appropriate management of allergic diseases.
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