1
|
Voltan C, Concer F, Pecoraro L, Pietrobelli A, Piacentini G, Zaffanello M. Exploring the Complex Interplay of Obesity, Allergic Diseases, and Sleep-Disordered Breathing in Children. CHILDREN (BASEL, SWITZERLAND) 2024; 11:595. [PMID: 38790590 PMCID: PMC11120164 DOI: 10.3390/children11050595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024]
Abstract
This narrative review study investigates the correlations between obesity, allergies, and sleep-disordered breathing in pediatric populations. Searches for pertinent articles were conducted on the Medline PubMed Advanced Search Builder, Scopus, and Web of Science databases from unlimited to April 2024. Sleep-disordered breathing causes repeated upper airway obstructions, leading to apneas and restless sleep. Childhood obesity, which affects around 20% of children, is often associated with sleep-disordered breathing and allergies such as asthma and allergic rhinitis. It is distinguished between diet-induced obesity (resulting from excess of diet and physical inactivity) and genetic obesity (such as is seen in Down syndrome and Prader-Willi syndrome). In children with diet-induced obesity, chronic inflammation linked to weight can worsen allergies and increase the risk and severity of asthma and rhinitis. Furthermore, the nasal congestion typical of rhinitis can contribute to upper respiratory tract obstruction and obstructive sleep apnea. A vicious circle is created between asthma and sleep-disordered breathing: uncontrolled asthma and sleep-disordered breathing can worsen each other. In children with genetic obesity, despite alterations in the immune system, fewer allergies are observed compared to the broader population. The causes of this reduced allergenicity are unclear but probably involve genetic, immunological, and environmental factors. Additional research is necessary to elucidate the underlying mechanisms. The present narrative review study emphasizes the importance of jointly evaluating and managing allergies, obesity, and obstructive sleep apnea in children considering their close interconnection.
Collapse
Affiliation(s)
| | | | | | | | | | - Marco Zaffanello
- Pediatric Clinic, Department of Surgery, Dentistry, Gynecology and Pediatrics, University of Verona, 37129 Verona, Italy (A.P.)
| |
Collapse
|
2
|
Eposse Ekoube C, Abba S, Endale Mangamba M, Mandeng Ma Linwa E, Tchouamo Pokem A, Mbonjo Bitsie D, Disso Massako J, Heles Nsang E, Ngo Linwa EE, Kedy Mangamba Koum DC. Factors associated with sensitisation to selected aero-allergens in children and adolescents with asthma followed up at Laquintinie Hospital Douala, Cameroon. Pediatr Pulmonol 2024; 59:1207-1216. [PMID: 38289059 DOI: 10.1002/ppul.26883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/16/2023] [Accepted: 01/11/2024] [Indexed: 04/30/2024]
Abstract
INTRODUCTION In spite of the substantial impact of pediatric asthma on healthcare resources, there is a notable dearth of research focusing on allergen sensitization specifically in children and adolescents with asthma in Cameroon, with existing studies primarily concentrating on adult populations. We, therefore, set out to determine factors associated with sensitization to selected aero-allergens in children and adolescents with asthma followed up at Laquintinie Hospital Douala, Cameroon. METHODOLOGY We conducted a cross-sectional analytical study on patients aged 2-17 years followed up for pediatric asthma at Laquintinie Hospital Douala for 8 months (January to August 2023). Skin prick tests were performed using selected standardized aeroallergens extracts. Factors associated with sensitization were determined using multivariable logistic regression analysis. The threshold for significance was set at p < .05. RESULTS In total, 126 children and adolescents with asthma were recruited, 50.79% of whom were male with an average age of 8.00 ± 3.99 years. Eight out of 10 patients (83.52%) were sensitized to common aero-allergens (20.59% monosensitized and 79.41% polysensitized). The most common aero-allergens found were the dust mites Dermatophagoïdes pteronyssinus (81.37%), Blomia tropicalis (67.64%) and Dermatophagoïdes farinae (52.94%) followed by Blatella species (25.49%). The factors independently associated with sensitization in our population were the personal history of allergic rhinitis in the patient [adjusted odds ratio, aOR: 4.07 (95% confidence interval, CI: 1.41-11.76), b = 0.54, p = .009], chest tightness at rest [aOR: 5.92 (95% CI: 1.08-32.38), b = 0.87, p = .040), and age above 5 years [aOR: 4.65 (95% CI: 1.47-14.69), b = 0.59, p = .009). CONCLUSION Sensitization to multiple aeroallergens is common in children and adolescents with asthma, especially for dust mites and cockroaches. Factors associated with sensitization are patients aged >5 years, chest tightness at rest, and a personal history of allergic rhinitis.
Collapse
Affiliation(s)
- Charlotte Eposse Ekoube
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
- Department of Paediatrics, General Paediatrics Unit, Douala Laquintinie Hospital, Douala, Cameroon
| | - Soumaiyatou Abba
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Mireille Endale Mangamba
- Department of Internal Medicine and Paediatrics, Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | - Edgar Mandeng Ma Linwa
- Department of Internal Medicine and Paediatrics, Faculty of Health Sciences, University of Buea, Buea, Cameroon
| | - Annick Tchouamo Pokem
- Department of Paediatics, Child and Adolescent Health, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang, Cameroon
| | - Dora Mbonjo Bitsie
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Jeannette Disso Massako
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Emmanuel Heles Nsang
- Department of Clinical Sciences, Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - Esther Eleonore Ngo Linwa
- Department of Clinical Sciences, Faculty of Health Sciences, University of Bamenda, Bamenda, Cameroon
| | | |
Collapse
|
3
|
Gutiérrez-Vera C, García-Betancourt R, Palacios PA, Müller M, Montero DA, Verdugo C, Ortiz F, Simon F, Kalergis AM, González PA, Saavedra-Avila NA, Porcelli SA, Carreño LJ. Natural killer T cells in allergic asthma: implications for the development of novel immunotherapeutical strategies. Front Immunol 2024; 15:1364774. [PMID: 38629075 PMCID: PMC11018981 DOI: 10.3389/fimmu.2024.1364774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/06/2024] [Indexed: 04/19/2024] Open
Abstract
Allergic asthma has emerged as a prevalent allergic disease worldwide, affecting most prominently both young individuals and lower-income populations in developing and developed countries. To devise effective and curative immunotherapy, it is crucial to comprehend the intricate nature of this condition, characterized by an immune response imbalance that favors a proinflammatory profile orchestrated by diverse subsets of immune cells. Although the involvement of Natural Killer T (NKT) cells in asthma pathology is frequently implied, their specific contributions to disease onset and progression remain incompletely understood. Given their remarkable ability to modulate the immune response through the rapid secretion of various cytokines, NKT cells represent a promising target for the development of effective immunotherapy against allergic asthma. This review provides a comprehensive summary of the current understanding of NKT cells in the context of allergic asthma, along with novel therapeutic approaches that leverage the functional response of these cells.
Collapse
Affiliation(s)
- Cristián Gutiérrez-Vera
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Richard García-Betancourt
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Pablo A. Palacios
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Marioly Müller
- Departamento de Tecnología Médica, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - David A. Montero
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Carlos Verdugo
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Francisca Ortiz
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Noemi A. Saavedra-Avila
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Steven A. Porcelli
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Leandro J. Carreño
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| |
Collapse
|
4
|
Hwang SH, Lee YJ, Choi YH, Huh DA, Kang MS, Moon KW. Long-term effects of the Hebei Spirit oil spill on the prevalence and incidence of allergic disorders. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168801. [PMID: 38008335 DOI: 10.1016/j.scitotenv.2023.168801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/25/2023] [Accepted: 11/20/2023] [Indexed: 11/28/2023]
Abstract
The Hebei Spirit oil spill accident occurred in December 2007, approximately 10 km off the coast of Taean, South Korea, a location notably close to residential areas. Crude oil substances have been detected in various environmental mediums since the accident, yet previous studies have primarily focused on the acute effects of oil exposure due to the short latency period of allergic diseases. Therefore, this study evaluated the long-term effects of oil spill exposure on allergic disorders. Our study included adult residents who had participated in the Health Effects Research on Hebei Spirit Oil Spill (HEROS) study up to five years post-incident, which was a prospective cohort to monitor the health status of Taean residents. We used two indicators to assess oil spill exposure, namely the distance from the initial contaminated coastline to each participant's residence and the number of days participants had engaged in oil clean-up work. Current symptoms such as asthma, allergic rhinitis, atopic dermatitis, allergic conjunctivitis, and multimorbidity were considered allergic disorders. In the baseline survey, the prevalence of asthma, allergic rhinitis, atopic dermatitis, allergic conjunctivitis, and allergic multimorbidity symptoms was associated with both exposure indicators; however, these associations were not observed in the two consecutive surveys. Significant longitudinal associations between oil spill exposure indicators and the four allergic disorders, as well as multimorbidity incidences, were observed during a five-year follow-up period. Our results suggest that oil spill exposure can affect acute and long-term allergic symptoms in residents near the accident site.
Collapse
Affiliation(s)
- Se Hyun Hwang
- Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Yong-Jin Lee
- Regional Environmental Health Center, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea; Department of Occupational & Environmental Medicine, Soonchunhyang University, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Yun-Hee Choi
- Department of Health and Safety Convergence Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R & E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Da-An Huh
- Institute of Health Sciences, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea.
| | - Min-Sung Kang
- Institute of Environmental Medicine, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan-si 31151, Republic of Korea
| | - Kyong Whan Moon
- Department of Health and Environmental Science, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea; BK21 FOUR R & E Center for Learning Health System, Korea University, Anam-ro 145, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
5
|
Ozdemir C, Kucuksezer UC, Ogulur I, Pat Y, Yazici D, Agache I, Jutel M, Nadeau KC, Akdis M, Akdis CA. How does global warming contribute to disorders originating from an impaired epithelial barrier? Ann Allergy Asthma Immunol 2023; 131:703-712. [PMID: 37619777 DOI: 10.1016/j.anai.2023.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/26/2023]
Abstract
The epithelial barrier represents the point of contact between the host and the external environment. It is the first line of defense against external insults in the skin and in the gastrointestinal and upper and lower respiratory tracts. The steep increase in chronic disorders in recent decades, including allergies and autoimmune disorders, has prompted studies to investigate the immune mechanisms of their underlying pathogeneses, all of which point to a thought-provoking shared finding: disrupted epithelial barriers. Climate change with global warming has increased the frequency of unpredictable extreme weather events, such as wildfires, droughts, floods, and aberrant and longer pollination seasons, among many others. These increasingly frequent natural disasters can synergistically damage the epithelial barrier integrity in the presence of environmental pollution. A disrupted epithelial barrier induces proinflammatory activation of epithelial cells and alarmin production, namely, epithelitis. The "opened" epithelial barrier facilitates the entry of the external exposome into and underneath the epithelium, triggering an expulsion response driven by inflammatory cells in the area and chronic inflammation. These changes are associated with microbial dysbiosis with colonizing opportunistic pathogens and decreased commensals. These cellular and molecular events are key mechanisms in the pathogenesis of numerous chronic inflammatory disorders. This review summarizes the impact of global warming on epithelial barrier functions in the context of allergic diseases. Further studies in the impact of climate change on the dysfunction of the epithelial barriers are warranted to improve our understanding of epithelial barrier-related diseases and raise awareness of the environmental insults that pose a threat to our health.
Collapse
Affiliation(s)
- Cevdet Ozdemir
- Institute of Child Health, Department of Pediatric Basic Sciences, Istanbul University, Istanbul, Türkiye; Division of Pediatric Allergy and Immunology, Department of Pediatrics, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Türkiye
| | - Umut Can Kucuksezer
- Aziz Sancar Institute of Experimental Medicine, Department of Immunology, Istanbul University, Istanbul, Türkiye
| | - Ismail Ogulur
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Yagiz Pat
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Duygu Yazici
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Ioana Agache
- Faculty of Medicine, Transylvania University, Brasov, Romania
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, and ALL-MED Medical Research Institute, Wroclaw, Poland
| | - Kari C Nadeau
- Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Cezmi A Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland; Christine Kühne-Center for Allergy Research and Education, Davos, Switzerland.
| |
Collapse
|
6
|
Allergy, asthma, and proteomics: opportunities with immediate impact. Allergol Immunopathol (Madr) 2023; 51:16-21. [PMID: 36617817 DOI: 10.15586/aei.v51i1.567] [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: 12/22/2021] [Accepted: 09/08/2022] [Indexed: 01/03/2023]
Abstract
Allergy is widely discussed by researchers due to its complex mechanism that leads to disorders and injuries, but the reason behind the allergic status remains unclear. Current treatments are insufficient to improve the patient's quality of life significantly. New technologies in scientific and technological development are emerging. For instance, the union between allergy and peptidomics and bioinformatics tools may help fill the gaps in this field, diagnosis, and treatment. In this review, we look at peptidomics and address some findings, such as target proteins or biomarkers that help better understand mechanisms that lead to inflammation, organ damage, and, consequently, poor quality of life or even death.
Collapse
|
7
|
Drønen EK, Namork E, Dirven H, Nygaard UC. Suspected gut barrier disruptors and development of food allergy: Adjuvant effects and early immune responses. FRONTIERS IN ALLERGY 2022; 3:1029125. [PMID: 36483186 PMCID: PMC9723362 DOI: 10.3389/falgy.2022.1029125] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/03/2022] [Indexed: 08/22/2023] Open
Abstract
Food allergy is an increasing public health challenge worldwide. It has recently been hypothesized that the increase in exposure to intestinal epithelial barrier-damaging biological and chemical agents contribute to this development. In animal models, exposure to adjuvants with a food allergen has been shown to promote sensitization and development of food allergy, and barrier disrupting capacities have been suggested to be one mechanism of adjuvant action. Here, we investigated how gut barrier disrupting compounds affected food allergy development in a mouse model of peanut allergy. Sensitization and clinical peanut allergy in C3H/HEOuJ mice were assessed after repeated oral exposure to peanut extract together with cholera toxin (CT; positive control), the mycotoxin deoxynivalenol (DON), house dust mite (HDM) or the pesticide glyphosate (GLY). In addition, we investigated early effects 4 to 48 h after a single exposure to the compounds by assessing markers of intestinal barrier permeability, alarmin production, intestinal epithelial responses, and local immune responses. CT and DON exerted adjuvant effects on peanut allergy development assessed as clinical anaphylaxis in mice. Early markers were affected only by DON, observed as increased IL-33 (interleukin 33) and thymic stromal lymphopoietin (TSLP) alarmin production in intestines and IL-33 receptor ST2 in serum. DON also induced an inflammatory immune response in lymph node cells stimulated with lipopolysaccharide (LPS). HDM and GLY did not clearly promote clinical food allergy and affected few of the early markers at the doses tested. In conclusion, oral exposure to CT and DON promoted development of clinical anaphylaxis in the peanut allergy mouse model. DON, but not CT, affected the early markers measured in this study, indicating that DON and CT have different modes of action at the early stages of peanut sensitization.
Collapse
Affiliation(s)
- Elena Klåpbakken Drønen
- Department for Chemical Toxicology, Division for Climate and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Ellen Namork
- Department for Chemical Toxicology, Division for Climate and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Hubert Dirven
- Department for Chemical Toxicology, Division for Climate and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Unni Cecilie Nygaard
- Department for Chemical Toxicology, Division for Climate and Health, Norwegian Institute of Public Health, Oslo, Norway
- Section for Immunology, Division for Infection Control, Norwegian Institute of Public Health, Oslo, Norway
| |
Collapse
|
8
|
Kim SH, Park SH, Kang I, Song Y, Lim J, Yoon W, Yoo Y. Environmental management education using immersive virtual reality in asthmatic children. ALLERGY ASTHMA & RESPIRATORY DISEASE 2022. [DOI: 10.4168/aard.2022.10.1.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Seung Hyun Kim
- Allergy Immunology Center, Korea University, Seoul, Korea
| | - Sang Hyun Park
- Department of Pediatrics, Korea University Medical College, Seoul, Korea
| | - Insoon Kang
- Department of Pediatrics, Korea University Medical College, Seoul, Korea
| | - Yuyoung Song
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
| | - Jaehoon Lim
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
| | - Wonsuck Yoon
- Allergy Immunology Center, Korea University, Seoul, Korea
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
| | - Young Yoo
- Allergy Immunology Center, Korea University, Seoul, Korea
- Department of Pediatrics, Korea University Medical College, Seoul, Korea
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
| |
Collapse
|
9
|
Olajide-Ibiejugba AO, Nkosi V, Takalani-Rathogwa F, Shirinde J, Wichmann J, Green RJ, Voyi K. Allergy and Household Living Conditions among Adolescents Living near Gold Mine Tailing Dumps in the Gauteng and North West Provinces of South Africa. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 19:122. [PMID: 35010377 PMCID: PMC8750766 DOI: 10.3390/ijerph19010122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
This quantitative exploratory baseline study aimed to investigate whether allergy among adolescents was associated with household living conditions, including living near gold mine tailing dumps in South Africa. A questionnaire based on the International Study of Asthma and Allergies was used to collect information on allergy and household risk factors among adolescents (n = 5611). A chi-square test was applied to determine the relationship between community (exposed/unexposed) and confounding variables. Crude and adjusted odds ratios (ORs) and 95% confidence intervals (CI) were calculated using univariate and multiple logistic regression analysis (LRA) to estimate the likelihood of having doctor-diagnosed allergies. The overall prevalence of doctor-diagnosed allergies was 25.5%. The exposed communities had a higher prevalence of doctor-diagnosed allergies (26.97%) compared with the unexposed (22.69%) communities. The study found an association between doctor-diagnosed allergy and having fungus in the house, being female, currently having pets in and around the house, residing in the community for more than three years and living in communities located close to gold mine tailing dumps. Actions to implement buffer zones between gold mine tailing dumps and communities would support Sustainable Development Goals 3 (health) and 11 (sustainable cities and communities), while failing to address the current potential identified risk factors may pose a significant public health challenge. Local policymakers should also apply the precautionary principle to protect the health of children, especially with the location of human settlements relative to air pollution sources.
Collapse
Affiliation(s)
- Abike O. Olajide-Ibiejugba
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (A.O.O.-I.); (J.S.); (J.W.); (K.V.)
| | - Vusumuzi Nkosi
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (A.O.O.-I.); (J.S.); (J.W.); (K.V.)
- Environment and Health Research Unit, South African Medical Research Council, Johannesburg 2094, South Africa
- Department of Environmental Health, Faculty of Health Sciences, Doornfontein Campus, University of Johannesburg, Johannesburg 2094, South Africa
| | - Funzani Takalani-Rathogwa
- Department of Advanced Nursing Science, Faculty of Health Sciences, University of Venda, Thohoyandou 0950, South Africa;
| | - Joyce Shirinde
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (A.O.O.-I.); (J.S.); (J.W.); (K.V.)
| | - Janine Wichmann
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (A.O.O.-I.); (J.S.); (J.W.); (K.V.)
| | - Robin J. Green
- Steve Biko Academic Hospital, Department of Paediatrics and Child Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa;
| | - Kuku Voyi
- School of Health Systems and Public Health, Faculty of Health Sciences, University of Pretoria, Pretoria 0001, South Africa; (A.O.O.-I.); (J.S.); (J.W.); (K.V.)
| |
Collapse
|
10
|
Li N, Lewandowski RP, Sidhu D, Holz C, Jackson-Humbles D, Eiguren-Fernandez A, Akbari P, Cho AK, Harkema JR, Froines JR, Wagner JG. Combined adjuvant effects of ambient vapor-phase organic components and particulate matter potently promote allergic sensitization and Th2-skewing cytokine and chemokine milieux in mice: The importance of mechanistic multi-pollutant research. Toxicol Lett 2021; 356:21-32. [PMID: 34863859 DOI: 10.1016/j.toxlet.2021.11.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/19/2021] [Accepted: 11/30/2021] [Indexed: 11/16/2022]
Abstract
Although exposure to ambient particulate matter (PM) is linked to asthma, the health effects of co-existing vapor-phase organic pollutants (vapor) and their combined effects with PM on this disease are poorly understood. We used a murine asthma model to test the hypothesis that exposure to vapor would enhance allergic sensitization and this effect would be further strengthened by co-existing PM. We found that vapor and PM each individually exerted adjuvant effects on OVA sensitization. Co-exposure to vapor and PM during sensitization further enhanced allergic lung inflammation and OVA-specific antibody production which was accompanied by pulmonary cytokine/chemokine milieu that favored T-helper 2 immunity (i.e. increased IL-4, downregulation of Il12a and Ifng, and upregulation of Ccl11 and Ccl8). TNFα, IL-6, Ccl12, Cxcl1 and detoxification/antioxidant enzyme responses in the lung were pollutant-dependent. Inhibition of lipopolysaccharide-induced IL-12 secretion from primary antigen-presenting dendritic cells correlated positively with vapor's oxidant potential. In conclusion, concurrent exposure to vapor and PM led to significantly exaggerated adjuvant effects on allergic lung inflammation which were more potent than that of each pollutant type alone. These findings suggest that the effects of multi-component air pollution on asthma may be significantly underestimated if research only focuses on a single air pollutant (e.g., PM).
Collapse
Affiliation(s)
- Ning Li
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA.
| | - Ryan P Lewandowski
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Damansher Sidhu
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Carine Holz
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Daven Jackson-Humbles
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Arantzazu Eiguren-Fernandez
- Department of Environmental Health Sciences, School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Peyman Akbari
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Arthur K Cho
- Department of Environmental Health Sciences, School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - Jack R Harkema
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - John R Froines
- Department of Environmental Health Sciences, School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
| | - James G Wagner
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA.
| |
Collapse
|
11
|
Tu Y, Williams GM, Cortés de Waterman AM, Toelle BG, Guo Y, Denison L, Babu GR, Yang BY, Dong GH, Jalaludin B, Marks GB, Knibbs LD. A national cross-sectional study of exposure to outdoor nitrogen dioxide and aeroallergen sensitization in Australian children aged 7-11 years. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 271:116330. [PMID: 33383426 DOI: 10.1016/j.envpol.2020.116330] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 06/12/2023]
Abstract
The prevalence of allergic diseases in Australian children is high, but few studies have assessed the potential role of outdoor air pollution in allergic sensitization. We investigated the association between outdoor air pollution and the prevalence of aeroallergen sensitization in a national cross-sectional study of Australian children aged 7-11 years. Children were recruited from 55 participating schools in 12 Australian cities during 2007-2008. Parents completed a detailed (70-item) questionnaire. Outdoor nitrogen dioxide (NO2), as a proxy for exposure to traffic-related emissions, was estimated using measurements from regulatory monitors near each school and a national land-use regression (LUR) model. Three averaging periods were assessed, using information on duration of residence at the address, including lifetime, previous (lifetime, excluding the last year), and recent (the last year only). The LUR model was used as an additional source of recent exposure estimates at school and home addresses. Skin prick tests (SPTs) were performed to measure sensitization to eight common aeroallergens. Multilevel logistic regression estimated the association between NO2 and sensitization (by individual allergens, indoor and outdoor allergens, and all allergens combined), after adjustment for individual- and area-level covariates. In total, 2226 children had a completed questionnaire and SPT. The prevalence of sensitization to any allergen was 44.4%. Sensitization to house dust mites (HDMs) was the most common (36.1%), while sensitization to Aspergillus was the least common (3.4%). Measured mean (±s.d.) NO2 exposure was between 9 (±2.9) ppb and 9.5 (±3.2) ppb, depending on the averaging period. An IQR (4 ppb) increase in measured previous NO2 exposure was associated with greater odds of sensitization to HDMs (OR: 1.21, 95% CI: 1.01-1.43, P = 0.035). We found evidence of an association between relatively low outdoor NO2 concentrations and sensitization to HDMs, but not other aeroallergens, in Australian children aged 7-11 years.
Collapse
Affiliation(s)
- Yanhui Tu
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia
| | - Gail M Williams
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia
| | | | - Brett G Toelle
- Woolcock Institute of Medical Research, The University of Sydney, NSW, 2006, Australia; Sydney Local Health District, Sydney, NSW, 2050, Australia
| | - Yuming Guo
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Department of Epidemiology and Biostatistics, School of Public Health and Preventive Medicine, Monash University, Melbourne, VIC, 3004, Australia
| | - Lyn Denison
- ERM Services Australia, Melbourne, VIC, 3000, Australia
| | - Giridhara R Babu
- Indian Institute of Public Health-Bangalore, Public Health Foundation of India, Bangalore, 560023, India
| | - Bo-Yi Yang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, China
| | - Bin Jalaludin
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Population Health, South Western Sydney Local Health District, Liverpool, NSW, 2170, Australia; Ingham Institute, Liverpool, NSW, 2170, Australia
| | - Guy B Marks
- Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia; Woolcock Institute of Medical Research, The University of Sydney, NSW, 2006, Australia; South Western Sydney Clinical School, The University of New South Wales, Liverpool, NSW, 2170, Australia
| | - Luke D Knibbs
- Faculty of Medicine, School of Public Health, The University of Queensland, Herston, QLD, 4006, Australia; Centre for Air Pollution, Energy and Health Research, Glebe, NSW, 2037, Australia.
| |
Collapse
|
12
|
Sastry J, Agawane S, Rajan M, Black K, Laumbach R, Ramagopal M. The effect of the indoor environment on wheeze- and sleep-related symptoms in young Indian children. Lung India 2021; 38:307-313. [PMID: 34259167 PMCID: PMC8272434 DOI: 10.4103/lungindia.lungindia_120_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Environmental exposures have a significant effect on respiratory and sleep symptoms in young children. Although the effect of air pollution on the respiratory symptoms in young children is well-established, less is known about the effect of household environmental characteristics and practices on wheeze and sleep concerns. Aims The aim of this pilot study is to explore the association between household environmental characteristics and practices with the symptoms of wheezing and sleep concerns in the past year in a convenience sample of young Indian children. Materials and Methods A detailed questionnaire about the child's home environment and respiratory and sleep symptoms was administered to the caregivers of 190 outpatients aged between 6 months and 5 years old at a teaching hospital. Results Indoor environmental characteristics and cleaning techniques were analyzed for the association with wheeze and sleep disorders. Half (50%) of the cohort had the symptoms of wheezing and 21% had occasional or frequent sleep concerns. Sleeping with a stuffed toy was significantly associated with both wheezing and sleep concerns (P = 0.05). Conclusions : Sleeping with a stuffed toy was a risk factor for wheeze and a risk factor for sleep disorders independent of wheeze.
Collapse
Affiliation(s)
- Jayagowri Sastry
- Global and Women's Health Research Unit, Division of Planetary Health, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Shubhangi Agawane
- Department of Community Medicine, Smt. Kashibai Navale Medical College and General Hospital, Pune, Maharashtra, India
| | - Mangala Rajan
- Division of General Internal Medicine, Weill Cornel Medicine, NY, NY, USA
| | - Kathleen Black
- Department of Environmental and Occupational Health, Rutgers University, Piscataway, Piscataway, New Jersey, USA
| | - Robert Laumbach
- Department of Environmental and Occupational Health, Rutgers University, Piscataway; Department of Environmental and Occupational Health, Rutgers School of Public Health, Rutgers University, Piscataway, New Jersey, USA
| | - Maya Ramagopal
- Department of Pediatrics, Division of Pulmonology, Rutgers-Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| |
Collapse
|
13
|
Miao Q, Xiang L, Guan H, Liu Y, Li Z, Ren Y, Xu W. Factors related to disagreement between self-reported versus objective measurement of allergen sensitization at a tertiary pediatric center in Beijing, China. BMC Pediatr 2020; 20:259. [PMID: 32466755 PMCID: PMC7254731 DOI: 10.1186/s12887-020-02148-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 05/14/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND The objectives of present study were to examine the level of disagreement between self-reported and objective measurement of sensitization to common inhalant allergens, and to explore the potential risk factors that might contribute to this discrepancy. METHODS A total of 215 children were enrolled from pediatric clinics at a tertiary pediatric center in Beijing, China. A survey questionnaires regarding self-perceived sensitization was completed by participants' parents/caregiver, meanwhile, skin prick testing(SPT) was performed as objective assessment of sensitization. Extent of agreement between self-reported versus SPT-measured sensitization to individual allergen was calculated using Cohen's kappa (κ) coefficient. Multivariable regression analyses were used to determine the factors associated with discrepancy between self-reported and objective measurement of sensitization. RESULTS 119(55.3%) patients have reported to be sensitized to at least one of inhalant allergen, whereas 167(77.7%) patients had a positive skin testing response. Agreement between self-perceived and actual aeroallergen sensitization was moderate for mites(κ = 0.518) and grass pollen mix(κ = 0.451), moreover, fair agreement was observed for mold(κ = 0.316) and cockroach(κ = 0.297), respectively. There was a least agreement between perceived and actual sensitization observed for pet dander, with a kappa coefficient of 0.005. Subjects' age, atopy history, ownership of pet may increase the risk of disagreement, moreover, background factors of informant, like: age, education level, and the relationship with enrolled subjects, were linked to the incidence of disagreement between self-reported sensitization in comparison with SPT results. CONCLUSION Questionnaire-based self-assessment is easy way to collect clinical information on allergen sensitization; however, the accuracy of questionnaire-derived information is more likely to be influenced by respondent's background factors. The information from the questionnaire report is considered to be more reliable when in combination with objective assessment of sensitization, including blood IgE testing and SPT.
Collapse
Affiliation(s)
- Qing Miao
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China.
| | - Li Xiang
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China.
| | - Hui Guan
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China
| | - Yongge Liu
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China
| | - Zhen Li
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China
| | - Yixin Ren
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China
| | - Wei Xu
- Department of Allergy, Beijng Children's Hospital, Capital Medical Univeristy, National Center for Children's Health, Beijing, 100045, People's Republic of China
| |
Collapse
|
14
|
Lucas JA, Gutierrez-Albanchez E, Alfaya T, Feo-Brito F, Gutiérrez-Mañero FJ. Oxidative stress in ryegrass growing under different air pollution levels and its likely effects on pollen allergenicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2019; 135:331-340. [PMID: 30599310 DOI: 10.1016/j.plaphy.2018.12.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 12/19/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
In the present work, for the first time in the literature, the relationship between the degree of air pollution, the physiological state of the plants and the allergenic capacity of the pollen they produce has been studied. The physiological state of Lolium perenne plants growing in two cities with a high degree of traffic, but with different levels of air pollution, Madrid and Ciudad Real, have been explored. The photosynthetic efficiency of the plants through the emission of fluorescence of PSII, the degree of oxidative stress (enzymatic activities related to the ascorbate-glutathione cycle), the redox state (reduced and oxidized forms of ascorbate and glutathione) and the concentration of malondialdehyde have been evaluated. During the development period of the plants, Madrid had higher levels of NO2 and SO2 than Ciudad Real. The greater degree of air pollution suffered by Madrid plants was reflected on a lower photosynthetic efficiency and a greater degree of oxidative stress. In addition, NADPH oxidase activity and H2O2 levels in pollen from Madrid were significantly higher, suggesting a likely higher allergenic capacity of this pollen associated to a higher air pollution.
Collapse
Affiliation(s)
- Jose Antonio Lucas
- Plant Physiology, Pharmaceutical and Health Sciences Department, Faculty of Pharmacy, Universidad San Pablo-CEU Universities, 28668 Boadilla del Monte, Spain.
| | - Enrique Gutierrez-Albanchez
- Plant Physiology, Pharmaceutical and Health Sciences Department, Faculty of Pharmacy, Universidad San Pablo-CEU Universities, 28668 Boadilla del Monte, Spain.
| | - Teresa Alfaya
- Allergy Section, General Hospital, Ciudad Real, Spain.
| | | | - Francisco Javier Gutiérrez-Mañero
- Plant Physiology, Pharmaceutical and Health Sciences Department, Faculty of Pharmacy, Universidad San Pablo-CEU Universities, 28668 Boadilla del Monte, Spain.
| |
Collapse
|
15
|
Berger K, Eskenazi B, Balmes J, Kogut K, Holland N, Calafat AM, Harley KG. Prenatal high molecular weight phthalates and bisphenol A, and childhood respiratory and allergic outcomes. Pediatr Allergy Immunol 2019; 30:36-46. [PMID: 30338578 PMCID: PMC6436539 DOI: 10.1111/pai.12992] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/12/2018] [Accepted: 10/02/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND The prevalence of asthma and allergy is increasing in US children. In utero exposure to chemicals used in personal care products and plastics may contribute to increase in these diseases. METHODS We quantified urinary concentrations of eight phthalate metabolites and bisphenol A in mothers twice during pregnancy in 1999-2000 in Salinas, California. We assessed probable asthma, aeroallergies, eczema, and spirometry in their children at age 7, and measured T helper 1 and T helper 2 cells in blood at ages 2, 5, and 7 (N = 392). We employed Bayesian model averaging to select confounders from additional biomarkers measured in this population and controlled for them in logistic and linear regressions. RESULTS Monocarboxyisooctyl phthalate was associated with increased odds for probable asthma (odds ratio: 1.54, 95% CI: 1.12, 2.12), and with lower forced expiratory volume in one second (β: -0.09 L, 95% CI: -0.15, -0.03) and forced expiratory flow from 25% to 75% of forced vital capacity (β: -7.06 L/s, 95% CI: -11.04, -2.90). Several other associations were attenuated in final models that controlled for additional biomarkers. CONCLUSION Monocarboxyisooctyl phthalate was associated with lower respiratory health after controlling for related chemical exposure, which suggests that confounding by multiple chemical exposures should be considered in future research.
Collapse
Affiliation(s)
- Kimberly Berger
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| | - Brenda Eskenazi
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| | - John Balmes
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| | - Katie Kogut
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| | - Nina Holland
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| | - Antonia M Calafat
- Division of Laboratory Sciences, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Kim G Harley
- Center for Environmental Research and Children's Health (CERCH), School of Public Health, University of California, Berkeley, Berkeley, California
| |
Collapse
|
16
|
Andreassen M, Rudi K, Angell IL, Dirven H, Nygaard UC. Allergen Immunization Induces Major Changes in Microbiota Composition and Short-Chain Fatty Acid Production in Different Gut Segments in a Mouse Model of Lupine Food Allergy. Int Arch Allergy Immunol 2018; 177:311-323. [PMID: 30244242 DOI: 10.1159/000492006] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Accepted: 07/09/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The incidence of food allergies in western countries has increased in recent decades. OBJECTIVES To study the association between gut bacterial microbiota composition, short-chain fatty acids (SCFAs) and food allergy in a mouse model. METHODS After oral immunizations with the human food allergen lupine with the adjuvant cholera toxin (CT) (or buffer in controls), sensitization and anaphylactic responses were determined. Gastrointestinal content was collected from the distal ileum, cecum, colon, and fecal pellets, and the bacterial diversity and composition was determined by deep sequencing of the 16S rRNA gene. SCFAs in gastrointestinal content supernatants were determined by gas chromatography. RESULTS The microbiota signatures were profoundly affected by allergen immunization. Ten operational taxonomic units (OTUs) were significantly different between immunized and control animals for at least one of the intestinal segments; eight of these OTUs belonged to the Clostridia class. Although consistent across all four gut segments, the colon showed the highest number of OTUs significantly associated with allergic immunization. SCFA levels in the cecum were also altered by immunization. CONCLUSIONS Allergen immunization with CT in the present food allergy model induced profound changes in the microbiome composition and SCFA production. The result suggests that the colon may be the most sensitive gut segment for investigating changes in the gut microbiome.
Collapse
Affiliation(s)
- Monica Andreassen
- Department of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo,
| | - Knut Rudi
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Inga Leena Angell
- Department of Chemistry, Biotechnology and Food Science, Norwegian University of Life Sciences, Ås, Norway
| | - Hubert Dirven
- Department of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway
| | - Unni C Nygaard
- Department of Toxicology and Risk Assessment, Norwegian Institute of Public Health, Oslo, Norway
| |
Collapse
|
17
|
Agnew M, Banic I, Lake IR, Goodess C, Grossi CM, Jones NR, Plavec D, Epstein M, Turkalj M. Modifiable Risk Factors for Common Ragweed ( Ambrosia artemisiifolia) Allergy and Disease in Children: A Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15071339. [PMID: 29949854 PMCID: PMC6069153 DOI: 10.3390/ijerph15071339] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 11/22/2022]
Abstract
Ragweed allergy is a major public health concern. Within Europe, ragweed is an introduced species and research has indicated that the amounts of ragweed pollen are likely to increase over Europe due to climate change, with corresponding increases in ragweed allergy. To address this threat, improving our understanding of predisposing factors for allergic sensitisation to ragweed and disease is necessary, specifically focusing upon factors that are potentially modifiable (i.e., environmental). In this study, a total of 4013 children aged 2–13 years were recruited across Croatia to undergo skin prick tests to determine sensitisation to ragweed and other aeroallergens. A parental questionnaire collected home environment, lifestyle, family and personal medical history, and socioeconomic information. Environmental variables were obtained using Geographical Information Systems and data from nearby pollen, weather, and air pollution stations. Logistic regression was performed (clustered on school) focusing on risk factors for allergic sensitisation and disease. Ragweed sensitisation was strongly associated with ragweed pollen at levels over 5000 grains m–3 year−1 and, above these levels, the risk of sensitisation was 12–16 times greater than in low pollen areas with about 400 grains m–3 year−1. Genetic factors were strongly associated with sensitisation but nearly all potentially modifiable factors were insignificant. This included measures of local land use and proximity to potential sources of ragweed pollen. Rural residence was protective (odds ratio (OR) 0.73, 95% confidence interval (CI) 0.55–0.98), but the factors underlying this association were unclear. Being sensitised to ragweed doubled (OR 2.17, 95% CI 1.59–2.96) the risk of rhinoconjunctivitis. No other potentially modifiable risk factors were associated with rhinoconjunctivitis. Ragweed sensitisation was strongly associated with ragweed pollen, and sensitisation was significantly associated with rhinoconjunctivitis. Apart from ragweed pollen levels, few other potentially modifiable factors were significantly associated with ragweed sensitisation. Hence, strategies to lower the risk of sensitisation should focus upon ragweed control.
Collapse
Affiliation(s)
- Maureen Agnew
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Ivana Banic
- Department Children's Hospital Srebrnjak, Srebrnjak 100, 10000 Zagreb, Croatia.
| | - Iain R Lake
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Clare Goodess
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Carlota M Grossi
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Natalia R Jones
- School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, UK.
| | - Davor Plavec
- Department Children's Hospital Srebrnjak, Srebrnjak 100, 10000 Zagreb, Croatia.
| | - Michelle Epstein
- Division of Immunology, Allergy and Infectious Diseases, Department of Dermatology, Währinger Gürtel 18⁻20, Room 4P9.02, 1090 Vienna, Austria.
| | - Mirjana Turkalj
- Department Children's Hospital Srebrnjak, Srebrnjak 100, 10000 Zagreb, Croatia.
| |
Collapse
|
18
|
Sedghy F, Varasteh AR, Sankian M, Moghadam M. Interaction Between Air Pollutants and Pollen Grains: The Role on the Rising Trend in Allergy. Rep Biochem Mol Biol 2018; 6:219-224. [PMID: 29766006 PMCID: PMC5941124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 09/02/2017] [Indexed: 06/08/2023]
Abstract
Asthma and allergic diseases cases have risen in recent decades. Plant pollen is considered as the main aeroallergen causing allergic reactions. According to available data, urban residents experience more respiratory allergies than rural residents mainly due to the interaction between chemical air pollutants and pollen grains. This interaction can occur through several mechanisms; chemical pollutants might facilitate pollen allergen release, act as adjuvants to stimulate IgE-mediated responses, modify allergenic potential, and enhance the expression of some allergens in pollen grains. This review focuses on the most recent theories explaining how air pollutants can interact with pollen grains and allergens.
Collapse
Affiliation(s)
- Farnaz Sedghy
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman.
| | - Abdol-Reza Varasteh
- Immuno-Biochemistry lab, Immunology Research Center, Mashhad University of medical Sciences, Mashhad, Iran.
| | - Mojtaba Sankian
- Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Malihe Moghadam
- Allergy Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
19
|
Zhao H, Song X, Yan L, Ren M, Cui X, Li Y, Gao R, Zhang W, Liu M, Liu B, Hu Y, Wang J. IgE induces hypotension in asthma mice by down-regulating vascular NCX1 expression through activating MiR-212-5p. Biochim Biophys Acta Mol Basis Dis 2017; 1864:189-196. [PMID: 28988887 DOI: 10.1016/j.bbadis.2017.10.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 09/20/2017] [Accepted: 10/05/2017] [Indexed: 01/09/2023]
Abstract
Immunoglobulin E (IgE) has been suggested as a risk factor for allergy-induced low blood pressure, which has not been well explained in molecular details. Our current study shows a novel mechanism involving IgE, FcɛR1, miRNA-212-5p (miR-212-5p), and sodium/calcium exchanger protein 1(NCX1) for asthma to induce hypotension. In arterial smooth muscle cells, IgE up-regulated miR212-5p via its receptor FcɛR1, which resulted in down-regulation of NCX1 that is a regulating factor for blood pressure. In mice, asthma induced hypotension by interfering vasoconstrictive function; knockout of FcɛR1 kept the asthmatic mice from developing hypotension; knock-down of miR-212-5p in asthmatic mice resulted in a significant restoration of blood pressure. In human, asthma and IgE were positively correlated with hypotension in cohort study on NIH epidemiological data. This study suggests a novel therapeutic target (miR-212-5p) for treatment of asthma-induced hypotension.
Collapse
Affiliation(s)
- Hongmei Zhao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Xiaomin Song
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Li Yan
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Meng Ren
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Xingxing Cui
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Yao Li
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Ran Gao
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Wei Zhang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Marobian Liu
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China
| | - Bin Liu
- Department of Biochemistry and Biophysics, University of Rochester, Rochester, NY 14642, USA
| | - Yi Hu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Multi-disciplinary Research Division, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, School of Basic Medicine, Peking Union Medical College, Beijing,China.
| |
Collapse
|
20
|
Korang SK, Feinberg J, Wetterslev J, Jakobsen JC. Non-invasive positive pressure ventilation for acute asthma in children. Cochrane Database Syst Rev 2016; 9:CD012067. [PMID: 27687114 PMCID: PMC6457810 DOI: 10.1002/14651858.cd012067.pub2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND Asthma is one of the most common reasons for hospital admission among children and constitutes a significant economic burden. Use of non-invasive positive pressure ventilation (NPPV) in the care of children with acute asthma has increased even though evidence supporting the intervention has been considered weak and clinical guidelines do not recommend the intervention. NPPV might be an effective intervention for acute asthma, but no systematic review has been conducted to assess the effects of NPPV as an add-on therapy to usual care in children with acute asthma. OBJECTIVES To assess the benefits and harms of NPPV as an add-on therapy to usual care (e.g. bronchodilators and corticosteroids) in children with acute asthma. SEARCH METHODS We identified trials from the Cochrane Airways Group Specialised Register (CAGR). The Register contains trial reports identified through systematic searches of bibliographic databases, including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, Embase, CINAHL, AMED and PsycINFO, and by handsearching of respiratory journals and meeting abstracts. We also conducted a search of ClinicalTrials.gov (www.ClinicalTrials.gov) and the WHO trials portal (www.who.int/ictrp/en/). We searched all databases from their inception to February 2016, with no restriction on language of publication. SELECTION CRITERIA We included randomised clinical trials (RCTs) assessing NPPV as add-on therapy to usual care versus usual care for children (age < 18 years) hospitalised for an acute asthma attack. DATA COLLECTION AND ANALYSIS Two review authors independently screened titles and abstracts. We retrieved all relevant full-text study reports, independently screened the full text, identified trials for inclusion and identified and recorded reasons for exclusion of ineligible trials. We resolved disagreements through discussion or, if required, consulted a third review author. We recorded the selection process in sufficient detail to complete a PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) flow diagram and 'Characteristics of excluded studies' table. We identified the risk of bias of included studies to reduce the risk of systematic error. We contacted relevant study authors when data were missing. MAIN RESULTS We included two RCTs that randomised 20 participants to NPPV and 20 participants to control. We assessed both studies as having high risk of bias; both trials assessed effects of bilateral positive airway pressure (BiPAP). Neither trial used continuous positive airway pressure (CPAP). Controls received standard care. Investigators reported no deaths and no serious adverse events (Grades of Recommendation, Assessment, Development and Evaluation (GRADE): very low quality of evidence due to serious risk of bias and serious imprecision of results). Both trials showed a statistically significant reduction in symptom score. One trial did not report a standard deviation (SD), but by using an estimated SD, we found a statistically significantly reduced asthma symptom score (mean difference (MD) -2.50, 95% confidence interval (CI) -4.70 to -0.30, P = 0.03, 19 participants, GRADE: very low quality of evidence). In the other trial, NPPV was associated with a lower total symptom score (5.6 vs 1.9, 16 participants, very low quality of evidence) before cross-over, but investigators did not report an SD, nor could it be estimated from the first phase of the trial, before the cross-over. These gains could be clinically relevant, as a reduction of three or more points in symptom score is considered a clinically meaningful change. Researchers documented five dropouts (12.5%), four of which were due to intolerance to NPPV, and one to respiratory failure requiring intubation. Owing to insufficient reporting in the latter trial and use of different scoring systems, it was not possible to conduct a meta-analysis nor a Trial Sequential Analysis. AUTHORS' CONCLUSIONS Current evidence does not permit confirmation or rejection of the effects of NPPV for acute asthma in children. Large RCTs with low risk of bias are warranted.
Collapse
Affiliation(s)
- Steven Kwasi Korang
- Holbaek SygehusPediatric DepartmentSmedelundsgade 60HolbaekDenmark4300
- Department 7812, Rigshospitalet, Copenhagen University HospitalCopenhagen Trial Unit, Centre for Clinical Intervention ResearchCopenhagenDenmark
| | - Joshua Feinberg
- Department 7812, Rigshospitalet, Copenhagen University HospitalCopenhagen Trial Unit, Centre for Clinical Intervention ResearchCopenhagenDenmark
| | - Jørn Wetterslev
- Department 7812, Rigshospitalet, Copenhagen University HospitalCopenhagen Trial Unit, Centre for Clinical Intervention ResearchCopenhagenDenmark
| | - Janus C Jakobsen
- Copenhagen Trial Unit, Centre for Clinical Intervention Research, Department 7812, Rigshospitalet, Copenhagen University HospitalThe Cochrane Hepato‐Biliary GroupBlegdamsvej 9CopenhagenSjællandDenmarkDK‐2100
- Holbaek HospitalDepartment of CardiologyHolbaekDenmark4300
| | | |
Collapse
|
21
|
Sun CY, Bai J, Hu TY, Cheng BH, Ma L, Fan XQ, Yang PC, Zheng PY, Liu ZQ. CD4+ T cell responses in Balb/c mice with food allergy induced by trinitrobenzene sulfonic acid and ovalbumin. Mol Med Rep 2016; 13:5349-57. [PMID: 27109448 DOI: 10.3892/mmr.2016.5153] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 03/08/2016] [Indexed: 11/05/2022] Open
Abstract
The rapid increase in atopic diseases is potentially linked to increased hapten exposure, however, the role of haptens in the pathogenesis of food allergy remains unknown. Further studies are required to elucidate the cluster of differentiation 4 positive (CD4+) T cell response to food allergy induced by haptens. Dendritic cells were primed by trinitrobenzene sulfonic acid (TNBS) as a hapten or ovalbumin (OVA) as a model antigen, in a cell culture model. BALB/c mice were sensitized using TNBS and/or OVA. Intestinal Th1/Th2 cell and ovalbumin specific CD4+ T cells proliferation, intestinal cytokines (interleukin‑4 and interferon‑γ) in CD4+ T cells were evaluated. TNBS increased the expression of T cell immunoglobulin and mucin domain‑4 and tumor necrosis factor ligand superfamily member 4 in dendritic cells. Skewed Th2 cell polarization, extensive expression of interleukin‑4, reduced expression of interferon‑γ and forkhead box protein P3 were elicited following concomitant exposure to TNBS and OVA, with reduced regulatory T cells in the mouse intestinal mucosa, whereas a Th1 response was detected when challenged by TNBS or OVA alone. This data suggests that TNBS, as a hapten, combined with food antigens may lead to a Th2 cell response in the intestinal mucosa.
Collapse
Affiliation(s)
- Chen-Yi Sun
- Department of Gastroenterology, The Second Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Jie Bai
- Maternal and Child Care Service Centre of Zhengzhou, Zhengzhou, Henan 471000, P.R. China
| | - Tian-Yong Hu
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| | - Bao-Hui Cheng
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| | - Li Ma
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| | - Xiao-Qin Fan
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| | - Ping-Chang Yang
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| | - Peng-Yuan Zheng
- Department of Gastroenterology, The Second Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Zhi-Qiang Liu
- Shenzhen Key Laboratory of Ear, Nose and Throat (ENT), Department of Rhinology, Institute of ENT, Longgang ENT Hospital, Shenzhen, Guangdong 518116, P.R. China
| |
Collapse
|
22
|
Kimber I, Carrillo JC. Oral exposure to mineral oils: Is there an association with immune perturbation and autoimmunity? Toxicology 2016; 344-346:19-25. [DOI: 10.1016/j.tox.2016.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 01/19/2016] [Accepted: 01/22/2016] [Indexed: 12/18/2022]
|
23
|
Korang SK, Feinberg J, Wetterslev J, Jakobsen JC. Non-invasive positive pressure ventilation for acute asthma in children. THE COCHRANE DATABASE OF SYSTEMATIC REVIEWS 2016. [DOI: 10.1002/14651858.cd012067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
24
|
Affiliation(s)
- Young Yoo
- Department of Pediatrics, Korea University College of Medicine, Seoul, Korea
- Environmental Health Center, Korea University Anam Hospital, Seoul, Korea
- Allergy Immunology Center, Korea University, Seoul, Korea
| |
Collapse
|
25
|
Ghonim MA, Pyakurel K, Ibba SV, Al-Khami AA, Wang J, Rodriguez P, Rady HF, El-Bahrawy AH, Lammi MR, Mansy MS, Al-Ghareeb K, Ramsay A, Ochoa A, Naura AS, Boulares AH. PARP inhibition by olaparib or gene knockout blocks asthma-like manifestation in mice by modulating CD4(+) T cell function. J Transl Med 2015; 13:225. [PMID: 26169874 PMCID: PMC4501284 DOI: 10.1186/s12967-015-0583-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Accepted: 06/25/2015] [Indexed: 12/22/2022] Open
Abstract
Background An important portion of asthmatics do not respond to current therapies. Thus, the need for new therapeutic drugs is urgent. We have demonstrated a critical role for PARP in experimental asthma. Olaparib, a PARP inhibitor, was recently introduced in clinical trials against cancer. The objective of the present study was to examine the efficacy of olaparib in blocking established allergic airway inflammation and hyperresponsiveness similar to those observed in human asthma in animal models of the disease. Methods We used ovalbumin (OVA)-based mouse models of asthma and primary CD4+ T cells. C57BL/6J WT or PARP-1−/− mice were subjected to OVA sensitization followed by a single or multiple challenges to aerosolized OVA or left unchallenged. WT mice were administered, i.p., 1 mg/kg, 5 or 10 mg/kg of olaparib or saline 30 min after each OVA challenge. Results Administration of olaparib in mice 30 min post-challenge promoted a robust reduction in airway eosinophilia, mucus production and hyperresponsiveness even after repeated challenges with ovalbumin. The protective effects of olaparib were linked to a suppression of Th2 cytokines eotaxin, IL-4, IL-5, IL-6, IL-13, and M-CSF, and ovalbumin-specific IgE with an increase in the Th1 cytokine IFN-γ. These traits were associated with a decrease in splenic CD4+ T cells and concomitant increase in T-regulatory cells. The aforementioned traits conferred by olaparib administration were consistent with those observed in OVA-challenged PARP-1−/− mice. Adoptive transfer of Th2-skewed OT-II-WT CD4+ T cells reversed the Th2 cytokines IL-4, IL-5, and IL-10, the chemokine GM-CSF, the Th1 cytokines IL-2 and IFN-γ, and ovalbumin-specific IgE production in ovalbumin-challenged PARP-1−/−mice suggesting a role for PARP-1 in CD4+ T but not B cells. In ex vivo studies, PARP inhibition by olaparib or PARP-1 gene knockout markedly reduced CD3/CD28-stimulated gata-3 and il4 expression in Th2-skewed CD4+ T cells while causing a moderate elevation in t-bet and ifn-γ expression in Th1-skewed CD4+ T cells. Conclusions Our findings show the potential of PARP inhibition as a viable therapeutic strategy and olaparib as a likely candidate to be tested in human asthma clinical trials.
Collapse
Affiliation(s)
- Mohamed A Ghonim
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA. .,Microbiology and Immunology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Kusma Pyakurel
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Salome V Ibba
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Amir A Al-Khami
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA. .,Department of Zoology, Faculty of Science, Tanta University, Tanta, Egypt.
| | - Jeffrey Wang
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Paulo Rodriguez
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Hamada F Rady
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, USA.
| | - Ali H El-Bahrawy
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Matthew R Lammi
- Pulmonary and Critical Care Section, School of Medicine, Louisiana State University, New Orleans, LA, USA.
| | - Moselhy S Mansy
- Microbiology and Immunology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Kamel Al-Ghareeb
- Microbiology and Immunology Department, Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.
| | - Alistair Ramsay
- Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA, USA.
| | - Augusto Ochoa
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| | - Amarjit S Naura
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA. .,Department of Biochemistry, Panjab University, Chandigarh, India.
| | - A Hamid Boulares
- The Stanley Scott Cancer Center, School of Medicine, Louisiana State University Health Sciences Center, 1700 Tulane Ave, New Orleans, LA, 70112, USA.
| |
Collapse
|
26
|
Affiliation(s)
- S. Scheurer
- Molecular Allergology; Paul-Ehrlich-Institut; Langen Germany
| | - M. Toda
- Molecular Allergology; Paul-Ehrlich-Institut; Langen Germany
| | - S. Vieths
- Molecular Allergology; Paul-Ehrlich-Institut; Langen Germany
| |
Collapse
|