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Ohdachi T, Matsushima M, Ohara M, Kawashima H, Inoue G, Atsumi K, Tsubosaki Y, Takekoshi M, Ueyama J, Hashimoto N, Sato M, Hasegawa Y, Ishii M, Kawabe T. Degranulation and expression of cytokines were modulated by diazinon in activated mast cells. Toxicology 2024; 506:153882. [PMID: 38971550 DOI: 10.1016/j.tox.2024.153882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 07/02/2024] [Accepted: 07/04/2024] [Indexed: 07/08/2024]
Abstract
Diazinon is an organophosphorus (OP) insecticides used in agriculture, home gardening and indoor pest control in Japan. It can activate macrophages and induce pro-inflammatory responses and has been reported to cause airway hyper-reactivity, suggesting the possibility of asthma exacerbation from exposure to OP insecticides. Despite the correlation between insecticide use and the pathogenesis of allergic diseases, there have been no reports on the effects of diazinon on mast cell function. Therefore, in this study, we investigated the effects of diazinon on mast cell function in rat basophilic leukemia (RBL)-2H3 cells. Surprisingly, we found that diazinon inhibited mast cell activation, although the degree of inhibition varied with concentration. Diazinon induced reactive oxygen species (ROS) generation and HO-1 expression at a concentration of 150 µM without affecting cell viability. Diazinon inhibited A23187-mediated degranulation and Tnf and Il4 expression in RBL-2H3 cells but did not affect calcium influx. Suppression of degranulation by diazinon was reversed when the culture supernatant was removed. As a signaling event downstream of calcium influx, diazinon inhibited the phosphorylation of extracellular signal-regulated kinase (ERK) induced by A23187, whereas the phosphorylation of p38 had little effect. IgE cross-linking-mediated degranulation as well as the induction of Tnf and IL4 expression was significantly inhibited by diazinon, while diazinon had little effect on calcium influx. In conclusion, diazinon inhibited mast cell activation, including degranulation and cytokine expression. When evaluating the in vivo effects of diazinon, its potential to inhibit mast cell activation should be considered in the pathophysiology and development of allergic diseases in terms of basic and clinical aspects, respectively, although the effect of diazinon varies depending on the cell type.
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Affiliation(s)
- Tomoko Ohdachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Miyoko Matsushima
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan.
| | - Moeko Ohara
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Hina Kawashima
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Goki Inoue
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Kazuko Atsumi
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Yuka Tsubosaki
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Masahiro Takekoshi
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Jun Ueyama
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Mitsuo Sato
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan; National Hospital Organization, Nagoya Medical Center, Nagoya, Japan
| | - Makoto Ishii
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
| | - Tsutomu Kawabe
- Division of Host Defense Sciences, Omics Health Sciences, Department of Integrated Health Sciences, Nagoya University Graduate School of Medicine, Tokai National Higher Education and Research System, Japan
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Yang DZ, Tang J, Cheng YL, Yang YS, Wei JF, Sun JL, Xu ZQ. Identification and Characterization of Pectate Lyase as a Novel Allergen in Artemisia sieversiana Pollen. Int Arch Allergy Immunol 2024:1-14. [PMID: 38897183 DOI: 10.1159/000539375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 05/14/2024] [Indexed: 06/21/2024] Open
Abstract
INTRODUCTION Artemisia species are widely spread in north hemisphere. Artemisia sieversiana pollen is one of the common pollen allergens in the north of China. At present, seven allergens were identified and had been listed officially from A. sieversiana pollen, but the remaining allergens are still insufficiently studied, which need to be found. METHODS Pectate lyase was purified from the extracts of A. sieversiana pollen by anion exchange, size exclusion, and HPLC-hydrophobic interaction chromatography. The gene of A. sieversiana pectate lyase (Art si pectate lyase) was cloned and expressed in Escherichia coli. The enzyme activity and circular dichroism (CD) spectrum of natural and recombinant proteins were analyzed. The allergenicity of Art si pectate lyase was characterized by enzyme-linked immunosorbent assay (ELISA), Western blot, inhibition ELISA, and basophil activation test. The allergen's physicochemical properties, three-dimensional structure, sequence profiles with homologous allergens and phylogenetic tree were analyzed by in silico methods. RESULTS Natural Art si pectate lyase (nArt si pectate lyase) was purified from A. sieversiana pollen extracts by three chromatographic strategies. The cDNA sequence of Art si pectate lyase had a 1191-bp open reading frame encoding 396 amino acids. Both natural and recombinant pectate lyase (rArt si pectate lyase) exhibited similar CD spectrum, and nArt si pectate lyase had higher enzymatic activity. Moreover, the specific immunoglobulin E (IgE) binding rate against nArt si pectate lyase and rArt si pectate lyase was determined as 40% (6/15) in patients' serum with Artemisia species pollen allergy by ELISA. The nArt si pectate lyase and rArt si pectate lyase could inhibit 76.11% and 47.26% of IgE binding activities to the pollen extracts, respectively. Art si pectate lyase was also confirmed to activate patients' basophils. Its structure contains a predominant motif of classic parallel helical core, consisting of three parallel β-sheets, and two highly conserved features (vWiDH, RxPxxR) which may contribute to pectate lyase activity. Moreover, Art si pectate lyase shared the highest sequence identity of 73.0% with Art v 6 among currently recognized pectate lyase allergen, both were clustered into the same branch in the phylogenetic tree. CONCLUSION In this study, pectate lyase was identified and comprehensively characterized as a novel allergen in A. sieversiana pollen. The findings enriched the allergen information for this pollen and promoted the development of component-resolved diagnosis and molecular therapy of A. sieversiana pollen allergy.
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Affiliation(s)
- De-Zheng Yang
- Department of Pharmacy, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Jian Tang
- Department of Pharmacy, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
| | - Ya-Li Cheng
- Department of Allergy, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Yong-Shi Yang
- Department of Allergy, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Ji-Fu Wei
- Department of Pharmacy, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, China
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- National Vaccine Innovation Platform, Nanjing Medical University, Nanjing, China
| | - Jin-Lyu Sun
- Department of Allergy, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, China
| | - Zhi-Qiang Xu
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- National Vaccine Innovation Platform, Nanjing Medical University, Nanjing, China
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Böck A, Urner K, Eckert JK, Salvermoser M, Laubhahn K, Kunze S, Kumbrink J, Hoeppner MP, Kalkbrenner K, Kreimeier S, Beyer K, Hamelmann E, Kabesch M, Depner M, Hansen G, Riedler J, Roponen M, Schmausser-Hechfellner E, Barnig C, Divaret-Chauveau A, Karvonen AM, Pekkanen J, Frei R, Roduit C, Lauener R, Schaub B. An integrated molecular risk score early in life for subsequent childhood asthma risk. Clin Exp Allergy 2024; 54:314-328. [PMID: 38556721 DOI: 10.1111/cea.14475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Numerous children present with early wheeze symptoms, yet solely a subgroup develops childhood asthma. Early identification of children at risk is key for clinical monitoring, timely patient-tailored treatment, and preventing chronic, severe sequelae. For early prediction of childhood asthma, we aimed to define an integrated risk score combining established risk factors with genome-wide molecular markers at birth, complemented by subsequent clinical symptoms/diagnoses (wheezing, atopic dermatitis, food allergy). METHODS Three longitudinal birth cohorts (PAULINA/PAULCHEN, n = 190 + 93 = 283, PASTURE, n = 1133) were used to predict childhood asthma (age 5-11) including epidemiological characteristics and molecular markers: genotype, DNA methylation and mRNA expression (RNASeq/NanoString). Apparent (ap) and optimism-corrected (oc) performance (AUC/R2) was assessed leveraging evidence from independent studies (Naïve-Bayes approach) combined with high-dimensional logistic regression models (LASSO). RESULTS Asthma prediction with epidemiological characteristics at birth (maternal asthma, sex, farm environment) yielded an ocAUC = 0.65. Inclusion of molecular markers as predictors resulted in an improvement in apparent prediction performance, however, for optimism-corrected performance only a moderate increase was observed (upto ocAUC = 0.68). The greatest discriminate power was reached by adding the first symptoms/diagnosis (up to ocAUC = 0.76; increase of 0.08, p = .002). Longitudinal analysis of selected mRNA expression in PASTURE (cord blood, 1, 4.5, 6 years) showed that expression at age six had the strongest association with asthma and correlation of genes getting larger over time (r = .59, p < .001, 4.5-6 years). CONCLUSION Applying epidemiological predictors alone showed moderate predictive abilities. Molecular markers from birth modestly improved prediction. Allergic symptoms/diagnoses enhanced the power of prediction, which is important for clinical practice and for the design of future studies with molecular markers.
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Affiliation(s)
- Andreas Böck
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
| | - Kathrin Urner
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
| | - Jana Kristin Eckert
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
| | - Michael Salvermoser
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
| | - Kristina Laubhahn
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Comprehensive Pneumology Center - Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
| | - Sonja Kunze
- Research Unit of Molecular Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
- Institute of Epidemiology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
| | - Jörg Kumbrink
- Institute of Pathology, Medical Faculty, LMU Munich, Munich, Germany
| | - Marc P Hoeppner
- Institute of Clinical Molecular Biology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Kathrin Kalkbrenner
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
| | - Simone Kreimeier
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Department of Health Economics and Health Care Management, School of Public Health, Bielefeld University, Bielefeld, Germany
| | - Kirsten Beyer
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Eckard Hamelmann
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Department for Pediatrics, Children's Center Bethel, University Hospital OWL, Bielefeld University, Bielefeld, Germany
| | - Michael Kabesch
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- University Children's Hospital Regensburg (KUNO), St. Hedwig's Hospital of the Order of St. John and the University of Regensburg, Regensburg, Germany
| | - Martin Depner
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Institute of Asthma and Allergy Prevention, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Gesine Hansen
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
- Excellence Cluster Resolving Infection Susceptibility RESIST (EXC 2155), Deutsche Forschungsgemeinschaft, Hannover Medical School, Hannover, Germany
| | | | - Marjut Roponen
- Department of Environmental and Biological Sciences, University of Eastern Finland, Kuopio, Finland
| | - Elisabeth Schmausser-Hechfellner
- Institute of Asthma and Allergy Prevention, Helmholtz Zentrum München, German Research Centre for Environmental Health, Neuherberg, Germany
| | - Cindy Barnig
- Department of Respiratory Disease, University Hospital, Besanҫon, France
- INSERM, EFS BFC, LabEx LipSTIC, UMR1098, Interactions Hôte-Greffon-Tumeur/Ingénierie Cellulaire et Génique, Univ. Bourgogne Franche-Comté, Besançon, France
| | - Amandine Divaret-Chauveau
- Pediatric Allergy Department, Children's Hospital, University Hospital of Nancy, Vandoeuvre les Nancy, France
- EA3450 Development, Adaptation and Handicap (devah), Pediatric Allergy Department, University of Lorraine, Nancy, France
- UMR/CNRS 6249 Chrono-environment, University of Franche Comté, Besançon, France
| | - Anne M Karvonen
- Department of Health Security, Finnish Institute for Health and Welfare, Kuopio, Finland
| | - Juha Pekkanen
- Department of Health Security, Finnish Institute for Health and Welfare, Kuopio, Finland
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Remo Frei
- Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
- Division of Respiratory Medicine and Allergology, Department of Paediatrics, Inselspital, University of Bern, Bern, Switzerland
| | - Caroline Roduit
- Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
- Division of Respiratory Medicine and Allergology, Department of Paediatrics, Inselspital, University of Bern, Bern, Switzerland
- Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
- Children's Hospital, University of Zürich, Zürich, Switzerland
| | - Roger Lauener
- Christine Kühne Center for Allergy Research and Education (CK-CARE), Davos, Switzerland
- Children's Hospital of Eastern Switzerland, St. Gallen, Switzerland
| | - Bianca Schaub
- Pediatric Allergology, Department of Pediatrics, Dr. von Hauner Children's Hospital, University Hospital, LMU Munich, Munich, Germany
- Member of the CHildhood Allergy and Tolerance Consortium (CHAMP), LMU Munich, Munich, Germany
- Comprehensive Pneumology Center - Munich (CPC-M), German Center for Lung Research (DZL), Munich, Germany
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Cay E, Karakulak V, Sezer A, Baspinar H, Bahar N, Fidan BH, Serbes M, Bilen S, Yucel SP, Ozcan D, Altintas DU. Clinical characteristics of children with asthma exacerbations: a cross-sectional descriptive study. J Asthma 2024:1-6. [PMID: 38376119 DOI: 10.1080/02770903.2024.2319847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 02/12/2024] [Indexed: 02/21/2024]
Abstract
AIM In this cross-sectional descriptive study, we aimed to determine the clinical characteristics of children admitted to a tertiary hospital with asthma exacerbations in a city in southern Turkey where aeroallergens are common and to determine how these characteristics affect the severity of exacerbations. METHODS Data from a cross-sectional analysis of children with asthma exacerbations who were followed up at the Cukurova University Medical Faculty Pediatric Emergency Department (ED) and Pediatric Allergy & Immunology inpatient clinic were retrospectively analyzed. The study included 106 children who were diagnosed with asthma and did not have any additional comorbidities. In a comparative analysis, the clinical characteristics and laboratory parameters of children with mild/moderate and severe exacerbations were examined. RESULTS While 81.1% of the patients had mild/moderate exacerbation, 18.8% had severe exacerbation. Additional atopic disease, Alternaria positivity in the skin prick test, the frequency of exacerbations in the previous year, Streptococcus pneumoniae infection, and the rate of noncompliance with treatment were significantly higher in children with severe asthma exacerbations. PEF, FEV1, and FEV1/FVC values were considerably lower in patients with severe exacerbations. CONCLUSIONS Bacterial infections, presence of atopic disease, Alternaria exposure, low spirometric measures, number of exacerbations in the previous year, and low rate of treatment adherence may be relevant in predicting the severity of asthma exacerbations.
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Affiliation(s)
- Ezgi Cay
- Department of Pediatrics, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Veysel Karakulak
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Ahmet Sezer
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Huseyin Baspinar
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Nilgun Bahar
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Busra Hatice Fidan
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Mahir Serbes
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Sevcan Bilen
- Division of Pediatric Emergency Medicine, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Sevinc Puren Yucel
- Department of Biostatistics, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Dilek Ozcan
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
| | - Derya Ufuk Altintas
- Division of Pediatric Allergy and Immunology, Faculty of Medicine, Balcali Hospital, Cukurova University, Adana, Turkey
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Bercedo-Sanz A, Martínez-Torres A, Varela ALS, Belinchón FJP, Aguinaga-Ontoso I, Díaz CG, García-Marcos L, Spain GG. Prevalence and time trends of symptoms of allergic rhinitis and rhinoconjunctivitis in Spanish children: Global Asthma Network (GAN) study. Allergol Immunopathol (Madr) 2023; 51:1-11. [PMID: 37695222 DOI: 10.15586/aei.v51i1.711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 10/03/2022] [Indexed: 09/12/2023]
Abstract
INTRODUCTION The time trends of the prevalence of rhinitis, rhinoconjunctivitis and nasal allergy previously described in the ISAAC (International Study of Asthma and Allergies in Childhood) in 2002 are unknown; or if the geographical or age differences in Spain persist. OBJECTIVE To describe the prevalence of rhinitis, rhinoconjunctivitis and nasal allergy in different Spanish geographical areas and compare them with those of the ISAAC. METHODS Cross-sectional study of the prevalence of rhinitis, rhinoconjunctivitis and nasal allergy, carried out in 2016-2019 on 19943 adolescents aged 13-14 years and 17215 schoolchildren aged 6-7 years from six Spanish areas (Cartagena, Bilbao, Cantabria, La Coruña, Pamplona, and Salamanca), through a questionnaire based on the Global Asthma Network (GAN) protocol. RESULTS The prevalences of recent rhinitis and rhinoconjunctivitis (last 12 months), and nasal allergy/hay fever were 35.1%, 17.6%, and 14.6% in the adolescents and 20%, 8.5%, and 8.9% in the schoolchildren, respectively, with rhinoconjunctivitis in adolescents varying from 20.9% in Bilbao to 13.4% in Cartagena; and in schoolchildren, from 9.8% in La Coruña to 6.4% in Pamplona. These prevalences of rhinoconjunctivitis and nasal allergy in adolescents were higher than those described in the ISAAC (16.3% and 13%) and similar in schoolchildren to the ISAAC (9% and 9.4%). CONCLUSIONS There has been a stabilisation of rhinitis, rhinoconjunctivitis and nasal allergy in schoolchildren that slows the previous upward trend of ISAAC; and a slight non-significant increase in rhinoconjunctivitis and nasal allergy in adolescents. The variability found in adolescents would require local research to be better understood.
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Affiliation(s)
- Alberto Bercedo-Sanz
- Centro de Salud Los Castros. Santander, Servicio Cántabro de Salud, Instituto de Investigación Sanitaria Valdecilla, IDIVAL, Cantabria, Spain;
| | - Antonela Martínez-Torres
- Unidad de Neumología y Alergia Pediátrica y Grupo de Investigación en Enfermería, Hospital Infantil Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria IMIB, Murcia, Spain
| | | | | | - Ines Aguinaga-Ontoso
- Departamento de Ciencias de la Salud, Universidad Pública de Navarra (UPNA), Pamplona, Spain
- IdiSNA, Instituto de Investigación Sanitaria de Navarra, Navarra, Spain
| | - Carlos González Díaz
- Unidad de Alergia Infantil, Hospital Universitario Basurto, Bilbao, Vizcaya, Spain
| | - Luis García-Marcos
- Unidad de Neumología y Alergia Pediátrica Hospital Infantil Universitario Virgen de la Arrixaca, Universidad de Murcia e Instituto Murciano de Investigación Biosanitaria IMIB, Murcia, Spain
| | - Grupo Gan Spain
- Centro de Salud Los Castros. Santander, Servicio Cántabro de Salud, Instituto de Investigación Sanitaria Valdecilla, IDIVAL, Cantabria, SpainUnidad de Neumología y Alergia Pediátrica y Grupo de Investigación en Enfermería, Hospital Infantil Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria IMIB, Murcia, SpainFundación María José Jove, Servicio Galego de Saúde (SERGAS), La Coruña, SpainCentro de Salud Pizarrales, Salamanca, Departamento de Ciencias Biomédicas y del Diagnóstico, Universidad de Salamanca, Salamanca, SpainDepartamento de Ciencias de la Salud, Universidad Pública de Navarra (UPNA), Pamplona, SpainIdiSNA, Instituto de Investigación Sanitaria de Navarra, Navarra, Spain.Unidad de Alergia Infantil, Hospital Universitario Basurto, Bilbao, Vizcaya, SpainUnidad de Neumología y Alergia Pediátrica Hospital Infantil Universitario Virgen de la Arrixaca, Universidad de Murcia e Instituto Murciano de Investigación Biosanitaria IMIB, Murcia, Spain
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Mubanga M, Lundholm C, Rohlin ES, Rejnö G, Brew BK, Almqvist C. Mode of delivery and offspring atopic dermatitis in a Swedish nationwide study. Pediatr Allergy Immunol 2023; 34:e13904. [PMID: 36705040 PMCID: PMC10107099 DOI: 10.1111/pai.13904] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND Atopic dermatitis is a common chronic childhood disease associated with significant morbidity and healthcare costs. There is a known association between caesarean section and asthma, but the relationship between caesarean section and offspring atopic dermatitis remains uncertain. METHODS We conducted a register-based nationwide cohort study including children born in Sweden between January 2006 and December 2018. Data on health and socioeconomic variables were extracted from the national registers for children aged ≤5 years. Time-to-event analyses were used to calculate hazard ratios (HR) with 95% confidence intervals (CI) adjusting for confounders and familial factors. RESULTS 1,399,406 children were included (6,029,542 person-years at risk). Atopic dermatitis was observed in 17.2% of the 1,150,896 children born by vaginal delivery and 18.3% of the 248,510 born by caesarean section. The mean age of onset of atopic dermatitis was 2.72 years (SD 1.8). Birth by caesarean section was associated with a higher risk of atopic dermatitis (adj-HR 1.12, 95% CI: 1.10-1.14). A higher risk of atopic dermatitis was found in children born by instrumental vaginal delivery (adj-HR 1.10, 1.07-1.13); emergency caesarean section (adj-HR 1.12, 1.10-1.15), and elective caesarean section (adj-HR 1.13, 1.10-1.16) than uncomplicated vaginal delivery in children <1 year of age. Similar hazards were observed in those ≥1 year of age. In sibling control analysis, greater risks remained in children aged <1 year but not in age ≥1 year. CONCLUSIONS In our study population, it was observed that children born by caesarean section or instrumental vaginal delivery were at higher risk of early childhood atopic dermatitis. Although familial confounding attenuates the risk in children aged ≥1 year, this was not observed in the first year of life.
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Affiliation(s)
- Mwenya Mubanga
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Cecilia Lundholm
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Elin S Rohlin
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Gustaf Rejnö
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Obstetrics and Gynaecology Unit, Stockholm, Sweden
| | - Bronwyn K Brew
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,National Perinatal Epidemiology and Statistics Unit, Centre for Big Data Research in Health and School of Clinical Medicine, University of New South Wales, Sydney, Australia
| | - Catarina Almqvist
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden
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Lee SL, Lau YL, Wong WHS, Tian LW. Childhood Wheeze, Allergic Rhinitis, and Eczema in Hong Kong ISAAC Study from 1995 to 2015. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192416503. [PMID: 36554390 PMCID: PMC9779471 DOI: 10.3390/ijerph192416503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 11/29/2022] [Accepted: 12/06/2022] [Indexed: 06/01/2023]
Abstract
BACKGROUND The prevalence of allergic diseases has been increasing in developing areas but has reached a plateau in many developed areas. Regular surveys are imperative to assess the disease burden for the prioritization of resource allocation. OBJECTIVES We examined the change in the prevalence of wheezing, allergic rhinitis (AR), and eczema in school-aged children with possible associative factors and possible health effects of school air quality. METHODS This was the third repeated cross-sectional study conducted in 2015-2016 using the International Study of Asthma and Allergies in Childhood (ISAAC) protocol. Our first and second surveys were conducted in 1994-1995 and 2000-2001, respectively. Regarding the third survey, we recruited 3698 children aged 6-7 from 33 local schools in 18 districts. Air quality, temperature, and humidity were also measured. The changes in prevalence, multiple regression, and GLIMMIX procedure were analyzed. RESULTS From our first survey to our third survey, the increased prevalences for lifetime wheeze, current wheeze, lifetime rhinitis, current rhinitis, current rhinoconjunctivitis, lifetime chronic rash, and current chronic rash were 4.2%, 2.1%, 12.5%, 12.6%, 14.2%, 3.9%, and 4.1%, respectively. Increased prevalence of parental atopy had the strongest association with an increased prevalence of each of these seven health outcomes. There was no significant association between school air pollutant levels and the prevalence of health outcomes. CONCLUSIONS There was an increase in the prevalence of wheezing, allergic rhinitis, and eczema across the surveys. The most important associated risk factor identified was the increased prevalence of a parental history of atopy.
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Affiliation(s)
- So-Lun Lee
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, Hong Kong
- Department of Paediatrics, Duchess of Kent Children’s Hospital, Hong Kong
| | - Yu-Lung Lau
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong
| | - Wilfred Hing-Sang Wong
- Department of Paediatrics and Adolescent Medicine, The University of Hong Kong, Hong Kong
| | - Lin-Wei Tian
- School of Public Health, The University of Hong Kong, Hong Kong
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8
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Jiao YX, Song LB, Xu ZQ, Zhu DX, Yang YS, Tian M, Sun JL, Wei JF. Purification and characterization of enolase as a novel allergen in Platanus acerifolia pollen. Int Immunopharmacol 2022; 113:109313. [DOI: 10.1016/j.intimp.2022.109313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/11/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022]
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9
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Evaluation of shoseiryuto for seasonal allergic rhinitis, using an environmental challenge chamber. World Allergy Organ J 2022; 15:100636. [PMID: 35399817 PMCID: PMC8938619 DOI: 10.1016/j.waojou.2022.100636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 01/29/2022] [Accepted: 02/07/2022] [Indexed: 11/03/2022] Open
Abstract
Background Methods Results Conclusions
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10
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Strachan DP, Rutter CE, Asher MI, Bissell K, Chiang CY, El Sony A, Ellwood E, Ellwood P, García-Marcos L, Marks GB, Morales E, Mortimer K, Pearce N, Pérez-Fernández V, Robertson S, Silverwood RJ. Worldwide time trends in prevalence of symptoms of rhinoconjunctivitis in children: Global Asthma Network Phase I. Pediatr Allergy Immunol 2022; 33:e13656. [PMID: 34453861 PMCID: PMC9012331 DOI: 10.1111/pai.13656] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/28/2021] [Accepted: 08/19/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND The Global Asthma Network (GAN), by using the International Study of Asthma and Allergies in Childhood (ISAAC) methodology, has updated trends in prevalence of symptoms of childhood allergic diseases, including non-infective rhinitis and conjunctivitis ('rhinoconjunctivitis'), which is reported here. METHODS Prevalence and severity of rhinoconjunctivitis were assessed by questionnaire among schoolchildren in GAN Phase I and ISAAC Phase I and III surveys 15-23 years apart. Absolute rates of change in prevalence were estimated for each centre and modelled by multi-level linear regression to compare trends by age group, time period and per capita national income. RESULTS Twenty-seven GAN centres in 14 countries surveyed 74,361 13- to 14-year-olds ('adolescents') and 45,434 6- to 7-year-olds ('children'), with average response proportions of 90% and 79%, respectively. Many centres showed highly significant (p < .001) changes in prevalence of rhinoconjunctivitis in the past year ('current rhinoconjunctivitis') compared with ISAAC. The direction and magnitude of centre-level trends varied significantly (p < .001) both within and between countries. Overall, current rhinoconjunctivitis prevalence decreased slightly from ISAAC Phase III to GAN: -1.32% per 10 years, 95% CI [-2.93%, +0.30%] among adolescents; and -0.44% [-1.29%, +0.42%] among children. Together, these differed significantly (p < .001) from the upward trend within ISAAC. Among adolescents, centre-level trends in current rhinoconjunctivitis were highly correlated with those for eczema symptoms (rho = 0.72, p < .0001) but not with centre-level trends in asthma symptoms (rho = 0.15, p = .48). Among children, these correlations were positive but not significant. CONCLUSION Symptoms of non-infective rhinoconjunctivitis among schoolchildren may no longer be on the increase globally, although trends vary substantially within and between countries.
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Affiliation(s)
- David P Strachan
- Population Health Research Institute, St George's, University of London, London, UK
| | - Charlotte E Rutter
- Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK
| | - Monica Innes Asher
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, University of Auckland, Private Bag, Auckland, New Zealand
| | - Karen Bissell
- School of Population Health, Faculty of Medical and Health Sciences, University of Auckland, Private Bag, Auckland, New Zealand
| | - Chen-Yuan Chiang
- International Union Against Tuberculosis and Lung Disease, Paris, France.,Division of Pulmonary Medicine, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Division of Pulmonary Medicine, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Asma El Sony
- Epidemiological Laboratory (Epi-Lab) for Public Health, Research and Development, Khartoum, Sudan
| | - Eamon Ellwood
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, University of Auckland, Private Bag, Auckland, New Zealand
| | - Philippa Ellwood
- Department of Paediatrics: Child and Youth Health, Faculty of Medical and Health Sciences, University of Auckland, Private Bag, Auckland, New Zealand
| | - Luis García-Marcos
- Paediatric Allergy and Pulmonology Units, Virgen de la Arrixaca University Children's Hospital, University of Murcia and IMIB Bio-health Research Institute, Murcia, Spain.,ARADyAL Allergy Network, Edificio Departamental-Laib, Murcia, Spain
| | - Guy B Marks
- Respiratory & Environmental Epidemiology, University of New South Wales, Sydney, New South Wales, Australia
| | - Eva Morales
- Department of Public Health Sciences, University of Murcia, Murcia, Spain.,IMIB Bio-health Research Institute, Edificio Departamental-Laib, Murcia, Spain
| | | | - Neil Pearce
- Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK
| | - Virginia Pérez-Fernández
- IMIB Bio-health Research Institute, Edificio Departamental-Laib, Murcia, Spain.,Department of Paediatrics, University of Murcia, Murcia, Spain
| | - Steven Robertson
- Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK
| | - Richard J Silverwood
- Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, UK.,Centre for Longitudinal Studies, UCL Social Research Institute, University College London, London, UK
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11
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Matos-Semedo F, Cruz C, Inácio F, Gama JMR, Nwaru BI, Taborda-Barata L. House dust mite (HDM) and storage mite (SM) molecular sensitisation profiles and association with clinical outcomes in allergic asthma and rhinitis: protocol for a systematic review. BMJ Open 2021; 11:e046519. [PMID: 34312197 PMCID: PMC8314702 DOI: 10.1136/bmjopen-2020-046519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION Identification and characterisation of single allergens at molecular level is important. Component-resolved diagnosis offers the possibility of higher diagnostic precision, thereby allowing better patient management. House dust mites (HDM) have a worldwide distribution. Studies from different countries have shown that IgE-mediated allergy to storage mites (SM) is important in rural and urban populations. With the availability of HDM and SM molecular allergen components, studies have investigated whether different molecular sensitisation profiles are associated with clinical disease outcomes. However, no previous systematic review has synthesised the underlying evidence. METHODS AND ANALYSIS We will search Cochrane Library (Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials (CENTRAL), Cochrane Methodology Register), MEDLINE, EMBASE, CINAHL, AMED, ISI Web of Science (Science and Social Science Index) from inception to March 2020. Unpublished and ongoing work, as well as research in progress will be searched in www.ClinicalTrials.gov; www.controlledtrials.com and wwwanzctrorgau. We will contact an international panel of experts in this field. No language restrictions will apply; translations will be undertaken where necessary. The Critical Appraisal Skills Programme quality assessment tool will be used to appraise the methodological quality of included studies. A descriptive summary with data tables will be constructed, and if adequate, meta-analysis using random effects will be performed. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses checklist will be followed for reporting. ETHICS AND DISSEMINATION Since this systematic review will be only based on published and retrievable literature, no ethics approval is required. We will publish the systematic review in an international peer-reviewed journal. TRIAL REGISTRATION NUMBER reviewregistry959.
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Affiliation(s)
- Filipa Matos-Semedo
- Department of Immunoallergy, Hospital da Luz, Lisbon, Portugal
- Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
| | - Cíntia Cruz
- Department of Immunoallergy, Hospital da Luz, Lisbon, Portugal
| | - Filipe Inácio
- Department of Immunoallergology, Hospital de São Bernardo, Centro Hospitalar de Setúbal, Setúbal, Portugal
| | - Jorge M R Gama
- Mathematics, Centre of Mathematics and Applications, University of Beira Interior, Covilhã, Portugal
| | - Bright I Nwaru
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Luís Taborda-Barata
- Faculty of Health Sciences, University of Beira Interior, Covilhã, Portugal
- CICS-Health Sciences Research Centre, University of Beira Interior, Covilhã, Portugal
- Department of Immunoallergology, Cova da Beira University Hospital Centre, Covilhã, Portugal
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12
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Huang Y, Wen HJ, Guo YLL, Wei TY, Wang WC, Tsai SF, Tseng VS, Wang SLJ. Prenatal exposure to air pollutants and childhood atopic dermatitis and allergic rhinitis adopting machine learning approaches: 14-year follow-up birth cohort study. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:145982. [PMID: 33684752 DOI: 10.1016/j.scitotenv.2021.145982] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 02/15/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
The incidence of childhood atopic dermatitis (AD) and allergic rhinitis (AR) is increasing. This warrants development of measures to predict and prevent these conditions. We aimed to investigate the predictive ability of a spectrum of data mining methods to predict childhood AD and AR using longitudinal birth cohort data. We conducted a 14-year follow-up of infants born to pregnant women who had undergone maternal examinations at nine selected maternity hospitals across Taiwan during 2000-2005. The subjects were interviewed using structured questionnaires to record data on basic demographics, socioeconomic status, lifestyle, medical history, and 24-h dietary recall. Hourly concentrations of air pollutants within 1 year before childbirth were obtained from 76 national air quality monitoring stations in Taiwan. We utilized weighted K-nearest neighbour method (k = 3) to infer the personalized air pollution exposure. Machine learning methods were performed on the heterogeneous attributes set to predict allergic diseases in children. A total of 1439 mother-infant pairs were recruited in machine learning analysis. The prevalence of AD and AR in children up to 14 years of age were 6.8% and 15.9%, respectively. Overall, tree-based models achieved higher sensitivity and specificity than other methods, with areas under receiver operating characteristic curve of 83% for AD and 84% for AR, respectively. Our findings confirmed that prenatal air quality is an important factor affecting the predictive ability. Moreover, different air quality indices were better predicted, in combination than separately. Combining heterogeneous attributes including environmental exposures, demographic information, and allergens is the key to a better prediction of children allergies in the general population. Prenatal exposure to nitrogen dioxide (NO2) and its concatenation changes with time were significant predictors for AD and AR till adolescent.
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Affiliation(s)
- Yu Huang
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Hui-Ju Wen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Yue-Liang Leon Guo
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan; Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan
| | - Tzu-Yin Wei
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Wei-Cheng Wang
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Shin-Fen Tsai
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Vincent S Tseng
- Department of Computer Science, National Yang Ming Chiao Tung University, Hsinchu, Taiwan.
| | - Shu-Li Julie Wang
- National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Department of Public Health, National Defence Medical Centre, Taipei, Taiwan; Department of Safety, Health, and Environmental Engineering, National United University, Miaoli, Taiwan.
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13
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Luger T, Adaskevich U, Anfilova M, Dou X, Murashkin NN, Namazova-Baranova L, Nitochko O, Reda A, Svyatenko TV, Tamay Z, Tawara M, Vishneva EA, Vozianova S, Wang H, Zhao Z. Practical algorithm to inform clinical decision-making in the topical treatment of atopic dermatitis. J Dermatol 2021; 48:1139-1148. [PMID: 33963603 DOI: 10.1111/1346-8138.15921] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 03/31/2021] [Accepted: 03/31/2021] [Indexed: 12/25/2022]
Abstract
Atopic dermatitis is a chronic relapsing, inflammatory skin disorder associated with skin barrier dysfunction, the prevalence of which has increased dramatically in developing countries. In this article, we propose a treatment algorithm for patients with mild-to-moderate and severe atopic dermatitis flares in daily clinical practice. An international panel of 15 dermatology and allergy experts from eight countries was formed to develop a practical algorithm for the treatment of patients with atopic dermatitis, with a particular focus on topical therapies. In cases of mild-to-moderate atopic dermatitis involving sensitive skin areas, the topical calcineurin inhibitor pimecrolimus should be applied twice daily at the first signs of atopic dermatitis. For other body locations, patients should apply a topical calcineurin inhibitor, either pimecrolimus or tacrolimus, twice daily at the first signs of atopic dermatitis, such as pruritus, or twice weekly in previously affected skin areas. Emollients should be used regularly. Patients experiencing acute atopic dermatitis flares in sensitive skin areas should apply a topical corticosteroid twice daily or alternate once-daily topical corticosteroid/topical calcineurin inhibitor until symptoms improve. Following improvement, topical corticosteroid therapy should be discontinued and patients switched to a topical calcineurin inhibitor. Maintenance therapy should include the use of pimecrolimus once daily for sensitive areas and tacrolimus for other body locations. This treatment algorithm can help guide clinical decision-making in the treatment of atopic dermatitis.
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Affiliation(s)
- Thomas Luger
- Department of Dermatology, University of Münster, Münster, Germany
| | | | - Maryna Anfilova
- National Pirogov Memorial Medical University, Vinnytsya, Ukraine
| | - Xia Dou
- Peking University Shenzhen Hospital, Shenzhen, China
| | - Nikolay N Murashkin
- Medical Research Center for Children's Health, Federal State Autonomous Institution of the Ministry of Health of the Russian Federation, Moscow, Russia.,I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.,Paediatric and Child Health Research Institute of the Central Clinical Hospital of the Russian Academy of Sciences, Ministry of Science and Higher Education, Moscow, Russia
| | - Leyla Namazova-Baranova
- Paediatric and Child Health Research Institute of the Central Clinical Hospital of the Russian Academy of Sciences, Ministry of Science and Higher Education, Moscow, Russia.,Russian National Research Medical University, Moscow, Russia
| | | | - Ashraf Reda
- Mediclinic Welcare Hospital, Dubai, United Arab Emirates
| | | | - Zeynep Tamay
- Division of Pediatric Allergy and Clinical Immunology, Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mohammad Tawara
- Ishtar Center for Dermatology, Aesthetics and Laser Surgery, Eye Specialty Hospital, Amman, Jordan
| | - Elena A Vishneva
- Paediatric and Child Health Research Institute of the Central Clinical Hospital of the Russian Academy of Sciences, Ministry of Science and Higher Education, Moscow, Russia.,Russian National Research Medical University, Moscow, Russia
| | - Svitlana Vozianova
- P.L. Shupyk National Medical Academy of Postgraduate Education, Kiev, Ukraine
| | - Hua Wang
- Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zuotao Zhao
- Department of Dermatology and Venereology, Peking University First Hospital, Beijing Key Laboratory of Molecular Diagnosis on Dermatoses, National Clinical Research Center for Skin and Immune Diseases, Beijing, China
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14
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Simon D. Recent Advances in Clinical Allergy and Immunology 2019. Int Arch Allergy Immunol 2019; 180:291-305. [PMID: 31694018 DOI: 10.1159/000504364] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 11/19/2022] Open
Abstract
The immune system has vital functions for homeostasis and host defense. Thus, imbalances of the immune system whether associated with allergy, hypersensitivity, or autoimmunity are of great importance, as is manifest from common diseases such as atopic diseases, urticaria, and angioedema, and drug hypersensitivity reactions. These can affect patients' quality of life and can generate high costs for health care. Epidemiological studies have provided evidence for changing patterns of allergic diseases caused by lifestyle and climate changes which have consequences for medical care. Deeper insights into the pathogenesis of allergic/immunologic diseases, combined with novel technologies, provide improved diagnostic options and treatment measures. This review will summarize novel aspects of the epidemiology, pathogenic mechanisms, as well as disease management in the fields of allergy and clinical immunology.
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Affiliation(s)
- Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland,
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15
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Verschoor D, von Gunten S. Allergy and Atopic Diseases: An Update on Experimental Evidence. Int Arch Allergy Immunol 2019; 180:235-243. [PMID: 31694044 DOI: 10.1159/000504439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 11/19/2022] Open
Abstract
Over the last decades, an increasing appearance of allergies and atopic disorders, such as asthma, dermatitis, and rhinitis, has been observed. The mechanisms of these disorders remain unclear, and therefore the development of novel therapies is limited. Current treatments are often symptomatic, nonspecific, or may have severe side effects. Further insights into the mechanisms of the underlying disease pathogenesis could reveal novel targets for treatment. In this review, we provide an update on recent basic and translational studies that offer novel insights and opportunities for the treatment of patients with atopic disorders.
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16
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Yonekura S, Okamoto Y, Sakurai D, Iinuma T, Sakurai T, Yoneda R, Kurita J, Hanazawa T, Kawasaki Y. Efficacy of Desloratadine and Levocetirizine in Patients with Cedar Pollen-Induced Allergic Rhinitis: A Randomized, Double-Blind Study. Int Arch Allergy Immunol 2019; 180:274-283. [PMID: 31618733 DOI: 10.1159/000503065] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 09/02/2019] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND No comparative study of antihistamines that differ in structural system has been conducted in allergic rhinitis. OBJECTIVE This was a randomized, double-blind, crossover comparative study to verify the efficacy of antihistamines that differ in structural system. METHODS A total of 50 patients with moderate or more severe Japanese cedar pollen-induced allergic rhinitis were randomized to receive either placebo, desloratadine 5 mg (a tricyclic), or levocetirizine 5 mg (a piperazine). One dose of the study drug was orally administered at 9 pm on the day before a pollen exposure test, which was performed for 3 h (9 a.m. to 12 p.m.) to assess symptoms in an environmental challenge chamber (ECC). Nasal and ocular symptoms were compared at an airborne pollen level of 8,000 grains/m3. The primary endpoint was mean total nasal symptom score (TNSS) from 120 to 180 min in the ECC. Subjects with a difference of ≥1 in TNSS between 2 drugs were extracted to the relevant drug-responsive group. RESULTS The difference in TNSS from placebo was -2.42 (p < 0.0001) with levocetirizine and -1.66 (p < 0.01) with desloratadine, showing that both drugs were significantly more effective than placebo in controlling symptoms, but with no statistically significant difference between the 2 drugs. There were 12 subjects in the desloratadine-responsive group and 24 subjects in the levocetirizine-responsive group, with no contributor to response was detected. CONCLUSION Levocetirizine tended to control nasal symptoms more effectively than desloratadine. However, the response to each antihistamine varied among individuals and the predictors to the response are unknown. CLINICAL TRIAL REGISTRATION NUMBER UMIN ID: UMIN000029653.
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Affiliation(s)
- Syuji Yonekura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yoshitaka Okamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan, .,Chiba Rosai Hospital, Chiba, Japan,
| | - Daiju Sakurai
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tomohisa Iinuma
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toshioki Sakurai
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.,Chiba Cancer Center, Chiba, Japan
| | - Riyo Yoneda
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Junya Kurita
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Toyoyuki Hanazawa
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yohei Kawasaki
- Biostatistics Section, Clinical Research Center, Chiba University Hospital, Chiba, Japan
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17
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Aw M, Penn J, Gauvreau GM, Lima H, Sehmi R. Atopic March: Collegium Internationale Allergologicum Update 2020. Int Arch Allergy Immunol 2019; 181:1-10. [PMID: 31593946 DOI: 10.1159/000502958] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 08/27/2019] [Indexed: 11/19/2022] Open
Abstract
In recent decades, the worldwide prevalence of allergic disease has increased considerably. The atopic march is a model aimed at explaining the apparent progression of allergic diseases from atopic dermatitis (AD) to allergic asthma (AA) and to allergic rhinitis (AR). It hypothesizes that allergic disease begins, typically in children, with the development of AD, then AA, and finally progresses to AR. This theory has been widely studied in cross-sectional and long-term longitudinal studies and it has been found that as prevalence of AD declines, prevalence of AA increases. A similar relationship is reported between AA and AR. The legitimacy of the atopic march model is, however, currently debated. Epidemiological evidence and criticism of longitudinal studies point to an overstatement of the atopic march's prevalence and incorrect mechanisms, opening a discussion for alternative models to better explain the pathophysiological and epidemiological processes that promote this progression of allergic diseases. Albeit, risk factors for the development and progression of allergic disease, particularly AD, are critical in identifying disease progression. Investigating the role of age, severity, family history, phenotype, and genetic traits may give a better indication into the progression of allergic diseases. In addition, studies following patients from infancy into adulthood and a general increase in longitudinal studies would help broaden the knowledge of allergic disease progression and the atopic march.
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Affiliation(s)
- Michael Aw
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Jeremy Penn
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Gail M Gauvreau
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Hermenio Lima
- Division of Dermatology, McMaster University, Hamilton, Ontario, Canada
| | - Roma Sehmi
- Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada,
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18
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Robles-Figueroa M, Bedolla-Barajas M, Morales-Romero J, Pulido-Guillén NA, Bustos-Gutiérrez LRM. Allergic Rhinitis Is Associated With Loss of Energy and Concentration Difficulty: A Cross-sectional Study. Am J Rhinol Allergy 2019; 34:108-114. [PMID: 31558036 DOI: 10.1177/1945892419877554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Martín Robles-Figueroa
- Servicio de Medicina Interna, Hospital Civil de Guadalajara "Dr. Juan I. Menchaca," Guadalajara, Mexico
| | - Martín Bedolla-Barajas
- Servicio de Alergia e Inmunología Clínica, Hospital Civil de Guadalajara "Dr. Juan I. Menchaca," Guadalajara, Mexico
| | | | - Norma A Pulido-Guillén
- Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Mexico
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19
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Tomitaka S, Kawasaki Y, Ide K, Akutagawa M, Ono Y, Furukawa TA. Distribution of psychological distress is stable in recent decades and follows an exponential pattern in the US population. Sci Rep 2019; 9:11982. [PMID: 31427587 PMCID: PMC6700099 DOI: 10.1038/s41598-019-47322-1] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 07/15/2019] [Indexed: 01/13/2023] Open
Abstract
The prevalence of psychological distress is fairly stable in industrialised countries in recent decades, but the reasons for this stability remain unknown. To investigate the mechanisms underlying stability of psychological distress in the general population of the United States, we analysed the mathematical patterns of the distribution of psychological distress in recent decades. The present study utilised the Kessler psychological distress scale (K6) data from the 1997‒2017 United States National Health Interview Survey. We used overlap coefficients and graphical analysis to investigate the stability and mathematical patterns of the K6 distribution. Overlap coefficients and graphical analysis demonstrated that the distribution of K6 total scores was stable in the United States over the past two decades. Furthermore, the distributions of K6 total scores exhibited an exponential pattern, with the exception of the lower end of the distribution. These findings suggest that the lack of change in the prevalence of psychological distress over several decades is due to the stability of psychological distress distribution itself. Furthermore, the stability of the distribution of psychological distress over time may be linked to the exponential pattern of psychological distress distribution.
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Affiliation(s)
- Shinichiro Tomitaka
- Department of Mental Health, Panasonic Health Center, Tokyo, Japan. .,Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan.
| | - Yohei Kawasaki
- Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Kazuki Ide
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan.,Center for the Promotion of Interdisciplinary Education and Research, Kyoto University, Kyoto, Japan.,Department of Drug Evaluation and Informatics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Maiko Akutagawa
- Department of Drug Evaluation and Informatics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yutaka Ono
- Center for the Development of Cognitive Behavior Therapy Training, Tokyo, Japan
| | - Toshi A Furukawa
- Department of Health Promotion and Human Behavior, Kyoto University Graduate School of Medicine/School of Public Health, Kyoto, Japan
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de Oliveira TB, Moscon JG, Ferreira ENDN, da Veiga ABG. Prevalence of symptoms of asthma and allergic rhinitis in children in Southern Brazil: a ten-year monitoring study. J Asthma 2019; 57:373-380. [PMID: 30720381 DOI: 10.1080/02770903.2019.1573253] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: This study analyzes and describes trends in prevalence of asthma and rhinitis in children 6-7 years old living in Santo Ângelo, Brazil, by comparing data from 2007, 2012, and 2017. Methods: The ISAAC (International Study of Asthma and Allergies in Childhood) standardized written questionnaire was used in a three cross-sectional survey. The questionnaire was applied between March and May of 2007, 2012 and 2017. Results: A total of 701 children participated in the survey: 225 children in 2007, 229 in 2012, and 247 in 2017. There were no differences in the prevalence of current wheeze in the years of this study. On the other hand, a higher percentage of children were diagnosed with asthma in 2012 (26.2%) than in 2007 (10.2%) and 2017 (10.1%) (p < 0.05); however, the severity of asthma was lower in 2012 when compared to other years. Regarding cases of probable asthma - which included patients with suspected asthma or wheezing and nocturnal cough without a diagnosis of asthma - these corresponded to 15.7, 17.0, and 25.1% of the cases in 2007, 2012 and 2017, respectively. For other allergic diseases, we found no statistical difference in the frequency of symptoms of current rhinitis (55.5%, 54.6%, 51.8% in 2007, 2012, and 2017, respectively), allergic rhinitis (45.3%, 45.0%, 36.4% in 2007, 2012, and 2017, respectively), or pollinosis (17.8%, 12.7%, 14.2% in 2007, 2012, and 2017, respectively). Conclusions: The prevalence of probable asthma increased from 2007 to 2017. The prevalence of symptoms and diagnosis of allergic rhinitis and pollinosis was relatively high and these allergies must be considered in the pediatric population of the region.
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Affiliation(s)
- Tiago Bittencourt de Oliveira
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento Ciências da Saúde, Santo Ângelo, RS, Brazil.,Universidade Federal de Ciências da Saúde de Porto Alegre, Programa de Pós-Graduação em Patologia, Porto Alegre, RS, Brazil
| | - Jordana Griebeler Moscon
- Universidade Regional Integrada do Alto Uruguai e das Missões - URI, Departamento Ciências da Saúde, Santo Ângelo, RS, Brazil
| | | | - Ana Beatriz Gorini da Veiga
- Universidade Federal de Ciências da Saúde de Porto Alegre, Programa de Pós-Graduação em Patologia, Porto Alegre, RS, Brazil
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21
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Mortz CG, Andersen KE, Poulsen LK, Kjaer HF, Broesby-Olsen S, Bindslev-Jensen C. Atopic diseases and type I sensitization from adolescence to adulthood in an unselected population (TOACS) with focus on predictors for allergic rhinitis. Allergy 2019; 74:308-317. [PMID: 30307618 DOI: 10.1111/all.13630] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/26/2018] [Accepted: 10/01/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND While much is known on childhood atopic diseases, knowledge about persistence of atopic diseases from childhood to adulthood is limited. We therefore aimed to study the clinical course of atopic diseases and type I sensitization prospectively in an unselected cohort of adolescents followed into adulthood. METHODS A cohort of unselected 8th-grade school children (mean age 14 years) established in 1995 and followed up in 2010 were evaluated with questionnaire, clinical examination, skin prick tests and measurements of specific IgE. RESULTS The lifetime prevalence of atopic diseases was high and increased significantly from adolescence (31%) to adulthood (57%); particularly allergic rhinitis increased with an incidence rate of 17.5/1000 person-years. Childhood predictors for adult allergic rhinitis were atopic dermatitis, asthma and asymptomatic sensitization to pollen and house dust mite. Among those with asymptomatic sensitization in adolescence, 53%-78% developed allergic rhinitis in adulthood. Furthermore, type I sensitization increased significantly from adolescence to adulthood mostly due to increased sensitization to pollen. Type I sensitization was found mainly in those with allergic rhinitis. A high number of adults had oral allergy symptoms due to the high number of birch pollen allergic individuals. CONCLUSION Persistence of atopic diseases in adulthood is common, and a high proportion of the adult population is sensitized giving a high prevalence of allergic rhinitis. Many with asymptomatic sensitization in adolescence will develop allergic rhinitis in adult life. The focus should be on prevention of atopic diseases and sensitization already in childhood.
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Affiliation(s)
- Charlotte G. Mortz
- Department of Dermatology and Allergy Centre; Odense Research Centre for Anaphylaxis (ORCA); Odense University Hospital; University of Southern Denmark; Odense Denmark
| | - Klaus E. Andersen
- Institute of Clinical research; University of Southern Denmark; Odense Denmark
| | - Lars K. Poulsen
- Allergy Clinic; Copenhagen University Hospital at Gentofte; Copenhagen Denmark
| | - Henrik F. Kjaer
- Department of Dermatology and Allergy Centre; Odense Research Centre for Anaphylaxis (ORCA); Odense University Hospital; University of Southern Denmark; Odense Denmark
| | - Sigurd Broesby-Olsen
- Department of Dermatology and Allergy Centre; Odense Research Centre for Anaphylaxis (ORCA); Odense University Hospital; University of Southern Denmark; Odense Denmark
| | - Carsten Bindslev-Jensen
- Department of Dermatology and Allergy Centre; Odense Research Centre for Anaphylaxis (ORCA); Odense University Hospital; University of Southern Denmark; Odense Denmark
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22
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Simon D. Recent Advances in Clinical Allergy and Immunology. Int Arch Allergy Immunol 2018; 177:324-333. [PMID: 30399611 DOI: 10.1159/000494931] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 10/29/2018] [Indexed: 01/19/2023] Open
Abstract
Allergic diseases are of great concern because of their high prevalence, which is still rising in several regions, their impact on patients' physical and psychological health, the huge burden they place on patients' quality of life, as well as the socioeconomic consequences that they cause. Recent research has provided new data on both genetic and environmental risk factors of atopic/allergic diseases. The application of new technologies such as "omics" has allowed a better understanding of the pathogenesis and has helped with the identification of therapeutic targets. Immense progress has been made in developing and applying novel, targeted therapies, for example for asthma and urticaria. Intensive efforts are being made to find biomarkers that help to classify patients, to identify their potential responsiveness to specific therapies, and to monitor the disease severity. Based on recent insights in the pathogenesis of food allergy and drug hypersensitivity, novel strategies for diagnostics, allergen avoidance, and induction of tolerance have been developed. Here, we summarize important findings in the field of clinical allergy and immunology with a special focus on asthma, allergic rhinitis, atopic dermatitis, food allergy, urticaria, angioedema, and drug hypersensitivity.
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Affiliation(s)
- Dagmar Simon
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland,
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23
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Yang M, Chu C, Bloom MS, Li S, Chen G, Heinrich J, Markevych I, Knibbs LD, Bowatte G, Dharmage SC, Komppula M, Leskinen A, Hirvonen MR, Roponen M, Jalava P, Wang SQ, Lin S, Zeng XW, Hu LW, Liu KK, Yang BY, Chen W, Guo Y, Dong GH. Is smaller worse? New insights about associations of PM 1 and respiratory health in children and adolescents. ENVIRONMENT INTERNATIONAL 2018; 120:516-524. [PMID: 30153645 DOI: 10.1016/j.envint.2018.08.027] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 07/27/2018] [Accepted: 08/09/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND OBJECTIVES Little is known about PM1 effects on respiratory health, relative to larger size fractions (PM2.5). To address this literature gap, we assessed associations between PM1 exposure and asthmatic symptoms in Chinese children and adolescents, compared with PM2.5. METHODS A total of 59,754 children, aged 2-17 years, were recruited from 94 kindergartens, elementary and middle schools in the Seven Northeast Cities (SNEC) study, during 2012-2013. We obtained information on asthma and asthma-related symptoms including wheeze, persistent phlegm, and persistent cough using a standardized questionnaire developed by the American Thoracic Society. PM1 and PM2.5 concentrations were estimated using a spatial statistical model matched to the children's geocoded home addresses. To examine the associations, mixed models with school/kindergarten as random intercept were used, controlling for covariates. RESULTS Odds ratios (ORs) of doctor-diagnosed asthma associated with a 10-μg/m3 increase for PM1 and PM2.5 were 1.56 (95% CI: 1.46-1.66) and 1.50 (1.41-1.59), respectively, and similar pattern were observed for other outcomes. Interaction analyses indicated that boys and the individuals with an allergic predisposition may be vulnerable subgroups. For example, among children with allergic predisposition, the ORs for doctor diagnosed asthma per 10 μg/m3 increase in PM1 was 1.71 (95% CI: 1.60-1.83), which was stronger than in their counterparts (1.46; 1.37-1.56) (pfor interaction < 0.05). CONCLUSIONS This study indicated that long-term exposure to PM1 may increase the risk of asthma and asthma-related symptoms, especially among boys and those with allergic predisposition. Furthermore, these positive associations for PM1 were very similar to those for PM2.5.
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Affiliation(s)
- Mo Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Chu Chu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Michael S Bloom
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China; Department of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Gongbo Chen
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia
| | - Joachim Heinrich
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, Ludwig-Maximilian-University, Munich 80336, Germany; Allergy and Lung Health Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Iana Markevych
- Institute and Clinic for Occupational, Social and Environmental Medicine, University Hospital, Ludwig-Maximilian-University, Munich 80336, Germany
| | - Luke D Knibbs
- School of Public Health, The University of Queensland, Herston, Queensland 4006, Australia
| | - Gayan Bowatte
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Shyamali C Dharmage
- Allergy and Lung Health Unit, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, VIC 3052, Australia
| | - Mika Komppula
- Finnish Meteorological Institute, Kuopio 70211, Finland
| | - Ari Leskinen
- Finnish Meteorological Institute, Kuopio 70211, Finland; Department of Applied Physics, University of Eastern Finland, Kuopio 70211, Finland
| | - Maija-Riitta Hirvonen
- Department of Environmental and Biological Science, University of Eastern Finland, Kuopio 70211, Finland
| | - Marjut Roponen
- Department of Environmental and Biological Science, University of Eastern Finland, Kuopio 70211, Finland
| | - Pasi Jalava
- Department of Environmental and Biological Science, University of Eastern Finland, Kuopio 70211, Finland
| | - Si-Quan Wang
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Shao Lin
- Department of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Xiao-Wen Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Li-Wen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
| | - Kang-Kang Liu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Bo-Yi Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Wen Chen
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC 3004, Australia.
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China.
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