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Yuan Y, Zhu H, Huang S, Zhang Y, Shen Y. Establishment of a diagnostic model based on immune-related genes in children with asthma. Heliyon 2024; 10:e25735. [PMID: 38375253 PMCID: PMC10875436 DOI: 10.1016/j.heliyon.2024.e25735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/21/2024] Open
Abstract
Objective Allergic asthma is driven by an antigen-specific immune response. This study aimed to identify immune-related differentially expressed genes in childhood asthma and establish a classification diagnostic model based on these genes. Methods GSE65204 and GSE19187 were downloaded and served as training set and validation set. The immune cell composition was evaluated with ssGSEA algorithm based on the immune-related gene set. Modules that significantly related to the asthma were selected by WGCNA algorithm. The immune-related differentially expressed genes (DE-IRGs) were screened, the protein-protein interaction network and diagnostic model of DE-IRGs was constructed. The pathway and immune correlation analysis of hub DE-IRGs was analyzed. Results Eight immune cell types exhibited varying levels of abundance between the asthma and control groups. A total of 112 differentially expressed immune-related genes (DE-IRGs) was identified. Through the application of four ranking methods (MCC, MNC, DEGREE, and EPC), 17 hub DE-IRGs with overlapping significance were further selected. Subsequently, 8 optimized were identified using univariate logistic regression analysis and the LASSO regression algorithm, based on which a robust diagnostic model was constructed. Notably, TNF and CD40LG emerged as direct participants in asthma-related signaling pathways, displaying a positive correlation with the immune cell types of immature B cells, activated B cells, activated CD8 T cells, activated CD4 T cells, and myeloid-derived suppressor cells. Conclusion The diagnostic model constructed using the DE-IRGs (CCL5, CCR5, CD40LG, CD8A, IL2RB, PDCD1, TNF, and ZAP70) exhibited high and specific diagnostic value for childhood asthma. The diagnostic model may contribute to the diagnosis of childhood asthma.
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Affiliation(s)
- Yuyun Yuan
- Department of Pediatrics, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, 201999, China
| | - Honghua Zhu
- Department of Medical Imaging, Shanghai Seventh People's Hospital, Shanghai, 200137, China
| | - Sihong Huang
- Department of Pediatrics, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, 201999, China
| | - Yantao Zhang
- Department of Pediatrics, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, 201999, China
| | - Yiyun Shen
- Department of Pediatrics, Shanghai Baoshan Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai, 201999, China
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Elrebehy MA, Abulsoud AI, El-Dakroury WA, Abdel Mageed SS, Elshaer SS, Fathi D, Rizk NI, Moustafa YM, Elballal MS, Mohammed OA, Abdel-Reheim MA, Zaki MB, Mahmoud AMA, Rashad AA, Sawan ES, Al-Noshokaty TM, Saber S, Doghish AS. Tuning into miRNAs: A comprehensive analysis of their impact on diagnosis, and progression in asthma. Pathol Res Pract 2024; 254:155147. [PMID: 38246033 DOI: 10.1016/j.prp.2024.155147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 01/23/2024]
Abstract
Asthma is a diverse inflammatory illness affecting the respiratory passages, leading to breathing challenges, bouts of coughing and wheezing, and, in severe instances, significant deterioration in quality of life. Epigenetic regulation, which involves the control of gene expression through processes such as post-transcriptional modulation of microRNAs (miRNAs), plays a role in the evolution of various asthma subtypes. In immune-mediated diseases, miRNAs play a regulatory role in the behavior of cells that form the airway structure and those responsible for defense mechanisms in the bronchi and lungs. They control various cellular processes such as survival, growth, proliferation, and the production of chemokines and immune mediators. miRNAs possess chemical and biological characteristics that qualify them as suitable biomarkers for diseases. They allow for the categorization of patients to optimize drug selection, thus streamlining clinical management and decreasing both the economic burden and the necessity for critical care related to the disease. This study provides a concise overview of the functions of miRNAs in asthma and elucidates their regulatory effects on the underlying processes of the disease. We provide a detailed account of the present status of miRNAs as biomarkers for categorizing asthma, identifying specific asthma subtypes, and selecting appropriate treatment options.
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Affiliation(s)
- Mahmoud A Elrebehy
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Ahmed I Abulsoud
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt; Biochemistry Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt.
| | - Walaa A El-Dakroury
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Sherif S Abdel Mageed
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Shereen Saeid Elshaer
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt; Department of Biochemistry, Faculty of Pharmacy (Girls), Al-Azhar University, Nasr City, Cairo 11823, Egypt
| | - Doaa Fathi
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Nehal I Rizk
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Yasser M Moustafa
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Mohammed S Elballal
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Osama A Mohammed
- Department of Pharmacology, College of Medicine, University of Bisha, Bisha 61922, Saudi Arabia
| | - Mustafa Ahmed Abdel-Reheim
- Department of Pharmaceutical Sciences, College of Pharmacy, Shaqra University, Shaqra 11961, Saudi Arabia; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni Suef 62521, Egypt.
| | - Mohamed Bakr Zaki
- Department of Biochemistry, Faculty of Pharmacy, University of Sadat City, Menoufia 32897, Egypt
| | - Abdulla M A Mahmoud
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Ahmed A Rashad
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Eman S Sawan
- Department of Clinical Pharmacy and Pharmacy Practice, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt
| | - Tohada M Al-Noshokaty
- Biochemistry Department, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt
| | - Sameh Saber
- Department of Pharmacology, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
| | - Ahmed S Doghish
- Department of Biochemistry, Faculty of Pharmacy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt; Biochemistry and Molecular Biology Department, Faculty of Pharmacy (Boys), Al-Azhar University, Nasr City 11231, Cairo, Egypt.
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Khan S, Ouaalaya EH, Chamberlain JD, Dufourg MN, Charles MA, Semjen CR. The external validation of the asthma prediction tool in the French ELFE cohort. Pediatr Pulmonol 2022; 57:2696-2706. [PMID: 35927215 DOI: 10.1002/ppul.26085] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/13/2022] [Accepted: 07/16/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND Existing predictive scores for early identification of children at high risk of developing asthma include invasive procedures, and hence have limited utility in a primary care setting. The Leicestershire respiratory cohort (LRC) has developed a noninvasive asthma prediction tool (APT) for children with promising results. We aimed to perform its external validation in the French general population Étude Longitudinale Française depuis l'Enfance (ELFE) cohort. METHODS Predictive scores were determined at Age 1 and the primary outcome of asthma was defined as parental reporting of "asthma ever or "wheezing in the past 12 months" at Age 5. Logistic regression was used to calculate the odds ratio (OR) and performance measures, and discriminative performance was reported using the receiver operating curve and area under curve (AUC). Calibration was assessed using Hosmer-Lemeshow goodness-of-fit test and visualized with a calibration plot. Overall performance was determined using Brier scores. RESULTS Of the 10,689 children analyzed: 84.9% were at low, 13.1% medium, and 2% at high risk of developing asthma at Age 5. Children in the medium-risk category were three times more likely to develop asthma (OR = 3.3, 95% confidence interval [CI] = 2.97-3.78) whereas 13 times more likely in the high-risk category (OR = 13.8, 95% CI = 10.2-18.8). The tool's AUC was comparable: LRC 0.74 versus ELFE 0.68; as were the Brier scores LRC 0.16 versus ELFE 0.14. The tool's performance was robust to changes in inclusion criteria and outcome definitions. CONCLUSIONS AND RELEVANCE Results of the present study and previous validation studies performed in high-risk populations provide a comprehensive measure of the effectiveness of the APT, providing encouragement for its application by general practitioners.
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Affiliation(s)
- Sadia Khan
- Bordeaux Population Health Research Center, EPICENE Team, INSERM, UMR 1219, Bordeaux University, Bordeaux, France
| | - El Hassane Ouaalaya
- Bordeaux Population Health Research Center, EPICENE Team, INSERM, UMR 1219, Bordeaux University, Bordeaux, France
| | - Jonviea D Chamberlain
- Bordeaux Population Health Research Center, Inserm UMR 1219, University of Bordeaux, Bordeaux, France.,CIC1401-EC, Inserm, Bordeaux, France
| | | | | | - Chantal R Semjen
- Bordeaux Population Health Research Center, EPICENE Team, INSERM, UMR 1219, Bordeaux University, Bordeaux, France
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Reyna ME, Dai R, Tran MM, Breton V, Medeleanu M, Lou WYW, Foong RE, Emmerson M, Dharma C, Miliku K, Lefebvre DL, Simons E, Azad MB, Chan-Yeung M, Becker AB, Mandhane PJ, Turvey SE, Hall GL, Moraes TJ, Sears MR, Subbarao P. Development of a Symptom-Based Tool for Screening of Children at High Risk of Preschool Asthma. JAMA Netw Open 2022; 5:e2234714. [PMID: 36201211 PMCID: PMC9539714 DOI: 10.1001/jamanetworkopen.2022.34714] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Despite advances in asthma therapeutics, the burden remains highest in preschool children; therefore, it is critical to identify primary care tools that distinguish preschool children at high risk for burdensome disease for further evaluation. Current asthma prediction tools, such as the modified Asthma Predictive Index (mAPI), require invasive tests, limiting their applicability in primary care and low-resource settings. OBJECTIVE To develop and evaluate the use of a symptom-based screening tool to detect children at high risk of asthma, persistent wheeze symptoms, and health care burden. DESIGN, SETTING, AND PARTICIPANTS The cohort for this diagnostic study included participants from the CHILD Study (n = 2511) from January 1, 2008, to December 31, 2012, the Raine Study from January 1, 1989, to December 31, 2012 (n = 2185), and the Canadian Asthma Primary Prevention Study (CAPPS) from January 1, 1989, to December 31, 1995 (n = 349), with active follow-up to date. Data analysis was performed from November 1, 2019, to May 31, 2022. EXPOSURES The CHILDhood Asthma Risk Tool (CHART) identified factors associated with asthma in patients at 3 years of age (timing and number of wheeze or cough episodes, use of asthma medications, and emergency department visits or hospitalizations for asthma or wheeze) to identify children with asthma or persistent symptoms at 5 years of age. MAIN OUTCOMES AND MEASURES Within the CHILD Study cohort, CHART was evaluated against specialist clinician diagnosis and the mAPI. External validation was performed in both a general population cohort (Raine Study [Australia]) and a high-risk cohort (CAPPS [Canada]). Predictive accuracy was measured by sensitivity, specificity, area under the receiver operating characteristic curve (AUROC), and positive and negative predicted values. RESULTS Among 2511 children (mean [SD] age at 3-year clinic visit, 3.08 [0.17] years; 1324 [52.7%] male; 1608 of 2476 [64.9%] White) with sufficient questionnaire data to apply CHART at 3 years of age, 2354 (93.7%) had available outcome data at 5 years of age. CHART applied in the CHILD Study at 3 years of age outperformed physician assessments and the mAPI in predicting persistent wheeze (AUROC, 0.94; 95% CI, 0.90-0.97), asthma diagnosis (AUROC, 0.73; 95% CI, 0.69-0.77), and health care use (emergency department visits or hospitalization for wheeze or asthma) (AUROC, 0.70; 95% CI, 0.61-0.78). CHART had a similar predictive performance for persistent wheeze in the Raine Study (N = 2185) in children at 5 years of age (AUROC, 0.82; 95% CI, 0.79-0.86) and CAPPS (N = 349) at 7 years of age (AUROC, 0.87; 95% CI, 0.80-0.94). CONCLUSIONS AND RELEVANCE In this diagnostic study, CHART was able to identify children at high risk of asthma at as early as 3 years of age. CHART could be easily incorporated as a routine screening tool in primary care to identify children who need monitoring, timely symptom control, and introduction of preventive therapies.
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Affiliation(s)
- Myrtha E. Reyna
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Ruixue Dai
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Maxwell M. Tran
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Vanessa Breton
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Maria Medeleanu
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Wendy Y. W. Lou
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Rachel E. Foong
- Wal-yan Respiratory Centre, Children's Lung Health, Telethon Kids Institute, Perth, Western Australia, Australia
- School of Allied Health, Curtin University, Perth, Western Australia, Australia
| | - Melanie Emmerson
- Department of Precision Genomics, Intermountain Healthcare, Salt Lake City, Utah
| | - Christoffer Dharma
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Kozeta Miliku
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Diana L. Lefebvre
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, University of Manitoba, Manitoba, Winnipeg, Canada
| | - Meghan B. Azad
- Department of Pediatrics and Child Health, University of Manitoba, Manitoba, Winnipeg, Canada
| | - Moira Chan-Yeung
- Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Allan B. Becker
- Department of Pediatrics and Child Health, University of Manitoba, Manitoba, Winnipeg, Canada
| | - Piush J. Mandhane
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Stuart E. Turvey
- Department of Pediatrics, BC Children’s Hospital, The University of British Columbia, Vancouver, British Columbia, Canada
| | - Graham L. Hall
- Wal-yan Respiratory Centre, Children's Lung Health, Telethon Kids Institute, Perth, Western Australia, Australia
- School of Allied Health, Curtin University, Perth, Western Australia, Australia
| | - Theo J. Moraes
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Malcolm R. Sears
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Padmaja Subbarao
- Department of Pediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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Hosseini B, Berthon BS, Jensen ME, McLoughlin RF, Wark PAB, Nichol K, Williams EJ, Baines KJ, Collison A, Starkey MR, Mattes J, Wood LG. The Effects of Increasing Fruit and Vegetable Intake in Children with Asthma on the Modulation of Innate Immune Responses. Nutrients 2022; 14:nu14153087. [PMID: 35956264 PMCID: PMC9370535 DOI: 10.3390/nu14153087] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 07/23/2022] [Accepted: 07/25/2022] [Indexed: 12/04/2022] Open
Abstract
Children with asthma are at risk of acute exacerbations triggered mainly by viral infections. A diet high in fruit and vegetables (F&V), a rich source of carotenoids, may improve innate immune responses in children with asthma. Children with asthma (3−11 years) with a history of exacerbations and low F&V intake (≤3 serves/d) were randomly assigned to a high F&V diet or control (usual diet) for 6 months. Outcomes included respiratory-related adverse events and in-vitro cytokine production in peripheral blood mononuclear cells (PBMCs), treated with rhinovirus-1B (RV1B), house dust mite (HDM) and lipopolysaccharide (LPS). During the trial, there were fewer subjects with ≥2 asthma exacerbations in the high F&V diet group (n = 22) compared to the control group (n = 25) (63.6% vs. 88.0%, p = 0.049). Duration and severity of exacerbations were similar between groups. LPS-induced interferon (IFN)-γ and IFN-λ production showed a small but significant increase in the high F&V group after 3 months compared to baseline (p < 0.05). Additionally, RV1B-induced IFN-λ production in PBMCs was positively associated with the change in plasma lycopene at 6 months (rs = 0.35, p = 0.015). A high F&V diet reduced asthma-related illness and modulated in vitro PBMC cytokine production in young children with asthma. Improving diet quality by increasing F&V intake could be an effective non-pharmacological strategy for preventing asthma-related illness by enhancing children’s innate immune responses.
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Affiliation(s)
- Banafsheh Hosseini
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Bronwyn S. Berthon
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Megan E. Jensen
- Priority Research Centre Grow Up Well, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (M.E.J.); (J.M.)
| | - Rebecca F. McLoughlin
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Peter A. B. Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW 2305, Australia
| | - Kristy Nichol
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Evan J. Williams
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Katherine J. Baines
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
| | - Adam Collison
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
- Priority Research Centre Grow Up Well, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (M.E.J.); (J.M.)
| | - Malcolm R. Starkey
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
- Priority Research Centre Grow Up Well, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (M.E.J.); (J.M.)
- Department of Immunology and Pathology, Central Clinical School, Sub-Faculty of Translational Medicine and Public Health, Monash University, Melbourne, VIC 3004, Australia
| | - Joerg Mattes
- Priority Research Centre Grow Up Well, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (M.E.J.); (J.M.)
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, NSW 2305, Australia
| | - Lisa G. Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (B.H.); (B.S.B.); (R.F.M.); (P.A.B.W.); (K.N.); (E.J.W.); (K.J.B.); (A.C.); (M.R.S.)
- Priority Research Centre Grow Up Well, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2305, Australia; (M.E.J.); (J.M.)
- Correspondence:
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Ogbu CE, Fongue S, Ogbu SC, Kirby RS. Infant feeding practices and asthma in children aged 6 months to 5 years using a propensity score approach. Cent Eur J Public Health 2022; 29:284-289. [PMID: 35026067 DOI: 10.21101/cejph.a6770] [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: 02/18/2021] [Accepted: 10/09/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVES We examined the association between exclusive breastfeeding, early introduction of feeding formula, early weaning, and asthma in children aged six months to five years in a sample of non-institutionalized US children using a propensity score approach. METHODS Our study used data from the National Survey of Children's Health (2012-2018) of 3,820 children with physician-diagnosed asthma aged 6 months to 5 years. Propensity score matching (PSM) was applied to control selection bias with age, sex, race, birth weight, Federal Poverty Level, parent's education, and parent smoking history used as covariates in PSM. The total number in the matched sample was 6,904 (3,452 non-asthmatics; 3,452 asthmatics). Matched and unmatched samples were analysed using the χ2 test and multiple logistic regression. RESULTS Exclusive breastfeeding was protective against asthma in the pre-matching (AOR 0.72; 95% CI: 0.54-0.97; p = 0.03) and post-matching (AOR 0.66; 95% CI: 0.55-0.81; p < 0.001) samples. Formula feeding before 6 months was associated with asthma in unmatched (AOR 1.38; 95% CI: 1.15-1.66; p < 0.001) and matched (AOR 1.31; 95% CI: 1.16-1.47; p < 0.001) sample. Early weaning before 6 months was associated with asthma in unmatched (AOR 1.62; 95% CI: 1.35-1.54; p < 0.001) and matched sample (AOR 1.37; 95% CI: 1.23-1.54; p < 0.001). CONCLUSION Public health systems should continue to recommend the implementation of the World Health Organization exclusive breastfeeding guideline in developed countries. Asthma interventions in children under two years should continue to emphasize exclusive breastfeeding to reduce the incidence of infant asthma.
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Affiliation(s)
- Chukwuemeka E Ogbu
- College of Public Health, University of South Florida, Tampa, Florida, United States of America
| | - Samuel Fongue
- College of Medicine and Health Sciences, Abia State University, Uturu, Nigeria
| | - Stella C Ogbu
- Department of Biological Sciences, East Tennessee State University, Johnson City, Tennessee, United States of America
| | - Russell S Kirby
- College of Public Health, University of South Florida, Tampa, Florida, United States of America
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Deng X, Yang M, Wang S, Wang Q, Pang B, Wang K, Zhang Z, Niu W. Factors Associated With Childhood Asthma and Wheeze in Chinese Preschool-Aged Children. Front Med (Lausanne) 2021; 8:742581. [PMID: 34805209 PMCID: PMC8599959 DOI: 10.3389/fmed.2021.742581] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 09/30/2021] [Indexed: 12/26/2022] Open
Abstract
This study was prepared to identify and characterize potential factors associated with childhood asthma and wheeze in Chinese preschool-aged children. A comprehensive questionnaire was designed for children aged 3–6 years and their parents or guardians in Beijing and Tangshan from September to December 2020. The least absolute shrinkage and selection operator (LASSO) model was used to identify factors in a significant association with childhood asthma and wheeze, respectively. The LASSO model was internally validated using bootstrap resampling with 100 replications. A total of 9,529 questionnaires were certified as eligible for inclusion after stringent quality control. The prevalence of doctor-diagnosed childhood asthma and parent-reported wheeze was 2.8 and 6.2%, respectively. Factors simultaneously associated with childhood asthma and wheeze were children with a history of allergic rhinitis, hay fever, eczema, initial age of using antibiotics, body mass index category, and family history of asthma. Specifically, children's vitamin D supplement duration was significantly associated with childhood asthma, whereas the association with childhood wheeze was significant for intake frequency of night meals for children and their screen time. Modeling of significant factors in nomograms had decent prediction accuracies, with C-index reaching 0.728 and 0.707 for asthma and wheeze, respectively. In addition, internal validation was good, with bootstrap C-statistic of being 0.736 for asthma and 0.708 for wheeze. Taken together, our findings indicated that the development of asthma and wheeze among preschool-aged children was probably determined by the joint contribution of multiple factors including inherited, nutritional, unhealthy lifestyles, and history of allergic disease. Further validation in other groups is necessary.
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Affiliation(s)
- Xiangling Deng
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Min Yang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Shunan Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Qiong Wang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Bo Pang
- Graduate School, Beijing University of Chinese Medicine, Beijing, China.,International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Kundi Wang
- Department of Pediatrics, China-Japan Friendship Hospital, Beijing, China
| | - Zhixin Zhang
- International Medical Services, China-Japan Friendship Hospital, Beijing, China
| | - Wenquan Niu
- Institute of Clinical Medical Sciences, China-Japan Friendship Hospital, Beijing, China
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Allergic Diseases: A Comprehensive Review on Risk Factors, Immunological Mechanisms, Link with COVID-19, Potential Treatments, and Role of Allergen Bioinformatics. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212105. [PMID: 34831860 PMCID: PMC8622387 DOI: 10.3390/ijerph182212105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 11/02/2021] [Accepted: 11/16/2021] [Indexed: 12/24/2022]
Abstract
The prevalence of allergic diseases is regarded as one of the key challenges in health worldwide. Although the precise mechanisms underlying this rapid increase in prevalence are unknown, emerging evidence suggests that genetic and environmental factors play a significant role. The immune system, microbiota, viruses, and bacteria have all been linked to the onset of allergy disorders in recent years. Avoiding allergen exposure is the best treatment option; however, steroids, antihistamines, and other symptom-relieving drugs are also used. Allergen bioinformatics encompasses both computational tools/methods and allergen-related data resources for managing, archiving, and analyzing allergological data. This study highlights allergy-promoting mechanisms, algorithms, and concepts in allergen bioinformatics, as well as major areas for future research in the field of allergology.
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9
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Siziba LP, Brenner H, Amitay EL, Koenig W, Rothenbacher D, Genuneit J. Potential sex differences in human milk leptin and their association with asthma and wheeze phenotypes: Results of the Ulm Birth Cohorts. Pediatr Allergy Immunol 2021; 32:1663-1672. [PMID: 34173262 DOI: 10.1111/pai.13586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 01/18/2023]
Abstract
BACKGROUND The hormone leptin has been suggested to play a role in the respiratory and immune systems. Evidence on sex-specific concentrations of leptin in human milk and sex-specific associations with the development of asthma and wheeze has been put forward but is still scarce. OBJECTIVE To investigate whether male and female infants receive different levels of leptin through human milk and whether leptin is implicated in the development of asthma and wheeze in a sex-dependent manner using data from the two Ulm Birth Cohort studies. METHODS Leptin data were available from human milk samples collected at 6 weeks (Ulm Birth Cohort Study [UBCS, n = 678; Ulm SPATZ Health Study, n = 587]), and, in SPATZ only, at 6 months (n = 377) and 12 months (n = 66) of lactation. Sex-specific associations with doctor-diagnosed asthma and wheeze phenotypes were assessed in crude and adjusted models using logistic regression. Adjustments were made for maternal allergy, exclusive breastfeeding, infant age at the time of milk sampling, and child BMI z-score. RESULTS At 6 weeks, leptin levels (median [min, max], in ng/L) were higher in the milk for girls (197 [0.100, 4120]) than in milk for boys (159 [1.02, 3280], p = .045) in UBCS. No significant sex differences were observed in SPATZ (p = .152). There were no significant associations of leptin with asthma or wheeze in both studies, even in a sex-dependent manner (p > .05). CONCLUSION It remains unclear whether male and female infants receive different levels of leptin through human milk. However, leptin in human milk may not be associated with history and development of asthma and wheeze in a sex-specific manner.
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Affiliation(s)
- Linda P Siziba
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Efrat L Amitay
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Centre (DKFZ), Heidelberg, Germany
| | - Wolfgang Koenig
- Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | | | - Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany.,Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
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10
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Ibrahim NM, Almarzouqi FI, Al Melaih FA, Farouk H, Alsayed M, AlJassim FM. Prevalence of asthma and allergies among children in the United Arab Emirates: A cross-sectional study. World Allergy Organ J 2021; 14:100588. [PMID: 34703522 PMCID: PMC8503660 DOI: 10.1016/j.waojou.2021.100588] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 08/13/2021] [Accepted: 09/04/2021] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Asthma, allergic rhinitis, and atopic dermatitis are the most common chronic inflammatory disorders in children worldwide. These conditions place a significant burden on the healthcare system due to their multiple related complications and the necessity of hospital visits. This study aimed to evaluate the prevalence and severity of asthma and allergic diseases among school children aged 6-7 years and 13-14 years in Dubai and the Northern Emirates, United Arab Emirates (UAE). PATIENTS AND METHODS This was a multicenter, cross-sectional study that recruited children from March to June 2019 via school class registers in Dubai and the Northern Emirates, UAE. The Arabic and English versions of the International Study of Asthma and Allergies in Childhood (ISAAC) core questionnaires on asthma, allergic rhinitis, and atopic dermatitis were completed by parents or legal guardians of children aged 6-7 years, and by the children themselves in those aged 13-14 years. RESULTS In this study, we included 3436 children (1944 children aged 6-7 years and 1793 children aged 13-14 years). We estimated the prevalence of asthma (11.9%), wheezing (44.2%), allergic rhinitis (46.5%), hay fever (22.1%), and atopic dermatitis (12.9%) in the 6- to 7-year-old group. In the 13- to 14-year-old group, the prevalence was 9.8%, 33.1%, 51.3%, 19.9%, and 14.6%, respectively. The prevalence of any history of asthma was higher in boys than girls in the 6- to 7-year-old group (13.9% vs. 10%) and in the 13- to 14-year-old group (11.2% vs. 8.7%). In the 6- to 7-year-old group, the highest prevalence of asthma, sneezing, and atopic dermatitis was observed in Dubai, Ajman, and Umm Al Quwain, respectively. In the 13- to 14-year-old group, the highest prevalence of asthma was observed in Ras Al Khaimah, and the highest prevalence of sneezing and atopic dermatitis was observed in Sharjah. CONCLUSION We found that the prevalence of asthma, allergic rhinitis, and atopic dermatitis in the UAE is comparable to that in neighboring countries; the prevalence of asthma, wheezing, and hay fever was higher in the 6- to 7-year-old group, while in the 13- to 14-year-old group, the prevalence of allergic rhinitis and atopic dermatitis was higher. Overall, the prevalence of any history of asthma was highest in Ras Al Khaimah, followed by Dubai, and lowest in Ajman. Our findings suggest that allergic disorders represent a healthcare burden in the UAE and more efforts are needed to organize nationwide campaigns to detect undiagnosed children to overcome the burden caused by these conditions.
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Affiliation(s)
- Nassem Mohamed Ibrahim
- Ministry of Health and Prevention / Primary Health Care Department, Dubai, United Arab Emirates
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11
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Meng X, Cao S, Li S, Yan M, Guo Q, Gong J, Liu Q, Zhang JJ, Duan X. Household environmental factors and children's respiratory health: comparison of two cross-sectional studies over 25 years in Wuhan, China. J Thorac Dis 2021; 13:4589-4600. [PMID: 34422384 PMCID: PMC8339747 DOI: 10.21037/jtd-20-2170] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 04/05/2021] [Indexed: 11/24/2022]
Abstract
Background Over the recent decades, residential lifestyle and household environment have changed substantially with rapid development of industrialization and urbanization in China. Whether the prevalence of respiratory diseases changed is still lack of evidence. The objective of this study is to assess potential changes in children’s respiratory disease prevalence and associated household environmental factors in Wuhan over a 25-year time interval. Methods Two cross-sectional studies in the Period 1 (1993 to 1996) and Period 2 (2017 to 2018) were compared in this research. Elementary school children in period 1 (N=2,517) and in period 2 (N=3,152) were recruited in Wuhan, China. The respiratory health condition, home environmental factors, and family socioeconomic status of each subject were acquired through questionnaire survey using the same protocols in both periods. We used the Chi-square test to analyze the difference of household environmental factors (focused on three indoor air quality determinants) and children’s respiratory health condition between two periods. Logistic regression models were used to assess the impacts of household environmental determinants on children’s respiratory diseases and symptoms between the two studies, by adjusting a set of covariates. Results The three indoor air quality determinants have reduced substantially in prevalence from period 1 to period 2: environment tobacco smoke (ETS) from 86.6% to 45.9%, household coal use from 47.6% to 4.9%, and kitchen smoke from 58.9% to 7.3%. The prevalence of certain respiratory symptoms in children significantly decreased, such as cough with colds (51.1% to 41.6%) and phlegm with colds (22.3% to 17.7%). The prevalence of asthma was 2.5% and 2.4% and that of bronchitis was 27.1% and 29.8% in both periods. Coal use was a risk factor for asthma in period 1 (OR =2.34, 95% CI: 1.30–4.23), while it was not significantly associated with prevalence of asthma in period 2 (OR =0.60, 95% CI: 0.08–4.51). Conclusions Household indoor air quality determinants and respiratory health condition of children in Wuhan has been improved over the last 25 years. At present, kitchen smoke is an important factor affecting the prevalence of wheeze whatever child has a cold or not and reducing exposure to ETS could be beneficial to protect children to be less likely to develop bronchitis.
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Affiliation(s)
- Xin Meng
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China.,Beijing Innovation Center for Engineering Science and Advanced Technology, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, And Center for Environment and Health, Peking University, Beijing, China
| | - Suzhen Cao
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Sai Li
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Meilin Yan
- Beijing Innovation Center for Engineering Science and Advanced Technology, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, And Center for Environment and Health, Peking University, Beijing, China
| | - Qian Guo
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
| | - Jicheng Gong
- Beijing Innovation Center for Engineering Science and Advanced Technology, State Key Joint Laboratory for Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, And Center for Environment and Health, Peking University, Beijing, China
| | - Qin Liu
- School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Junfeng Jim Zhang
- Global Health Research Center, Duke Kunshan University, Kunshan, China.,Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, USA.,Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaoli Duan
- School of Energy and Environmental Engineering, Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, University of Science and Technology Beijing, Beijing, China
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12
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Hao M, Zan J. The Identification of Childhood Asthma Progression-Related lncRNAs and mRNAs Suitable as Biomarkers Using Weighted Gene Coexpression Network Analysis. Genet Res (Camb) 2021; 2021:5511507. [PMID: 34456632 PMCID: PMC8371738 DOI: 10.1155/2021/5511507] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 07/16/2021] [Indexed: 12/14/2022] Open
Abstract
Background Asthma is a common chronic respiratory disease in children, seriously affecting children's health and growth. This bioinformatics study aimed to identify potential RNA candidates closely associated with childhood asthma development within current gene databases. Methods GSE65204 and GSE19187 datasets were screened and downloaded from the NCBI GEO database. Differentially expressed long noncoding RNAs (DE-lncRNAs) and mRNAs (DE-mRNAs) were identified using the Bioconductor limma package in R, and these DE-mRNAs were used to perform biological process (BP) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses. Thereafter, weighted gene coexpression network analysis (WGCNA) was utilized to screen the modules directly related to childhood asthma, and a coexpression network of DE-lncRNAs and DE-mRNAs was built. Finally, principal component analysis (PCA) was performed. Results In total, 7 DE-lncRNAs and 1060 DE-mRNAs, as well as 7 DE-lncRNAs and 1027 DE-mRNAs, were identified in GSE65204 and GSE19187, respectively. After comparison, 336 overlapping genes had the same trend of expression, including 2 overlapped DE-lncRNAs and 334 overlapped DE-mRNAs. These overlapped DE-mRNAs were enriched in 28 BP and 12 KEGG pathways. Eleven modules were obtained in GSE65204, and it was found that the purple, black, and yellow modules were significantly positively correlated with asthma development. Subsequently, a coexpression network including 63 DE-mRNAs and 2 DE-lncRNAs was built, and five KEGG pathways, containing 8 genes, were found to be directly associated with childhood asthma. The PCA further verified these results. Conclusion LncRNAs LINC01559 and SNHG8 and mRNAs VWF, LAMB3, LAMA4, CAV1, ALDH1A3, SMOX, GNG4, and PPARG were identified as biomarkers associated with the progression of childhood asthma.
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Affiliation(s)
- Min Hao
- Department of Pediatrics, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, China
| | - Jinling Zan
- Department of Intensive Care Unit, Zaozhuang Municipal Hospital, Zaozhuang, Shandong 277100, China
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13
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Fakunle AG, Jafta N, Naidoo RN, Smit LAM. Association of indoor microbial aerosols with respiratory symptoms among under-five children: a systematic review and meta-analysis. Environ Health 2021; 20:77. [PMID: 34210330 PMCID: PMC8252236 DOI: 10.1186/s12940-021-00759-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 06/18/2021] [Indexed: 05/25/2023]
Abstract
BACKGROUND Despite the recognition of the importance of indoor microbial exposures on children's health, the role of different microbial agents in development and aggravation of respiratory symptoms and diseases is only poorly understood. This study aimed to assess whether exposure to microbial aerosols within the indoor environment are associated with respiratory symptoms among children under-5 years of age. METHODS A systematic literature search was conducted on PubMed, Web of Science, GreenFILE, ScienceDirect, EMBASE and Cochrane library through February 2020. Studies that investigated the exposure-response relationship between components of the indoor microbial communities and respiratory symptoms among under-five children were eligible for inclusion. A random-effect meta-analysis was applied to estimate pooled relative risk (RR) and 95% confidence interval (CI) for study specific high versus low microbial exposures. The potential effect of individual studies on the overall estimate was evaluated using leave-one-out analysis, while heterogeneity was evaluated by I2 statistics using RevMan 5.3. RESULTS Fifteen studies were eligible for inclusion in a meta-analysis. The pooled risk estimate suggested that increased microbial exposure was associated with an increased risk of respiratory symptoms [pooled relative risk (RR): 1.24 (1.09, 1.41), P = 0.001]. The association was strongest with exposure to a combination of Aspergillus, Penicillium, Cladosporium and Alternaria species [pooled RR: 1.73 (1.30, 2.31), P = 0.0002]. Stratified analysis revealed an increased risk of wheeze [pooled RR: 1.20 (1.05, 1.37), P = 0.007 and allergic rhinitis [RR: 1.18 (0.94, 1.98), P = 0.16] from any microbial exposure. CONCLUSIONS Microbial exposures are, in general, associated with risk of respiratory symptoms. Future studies are needed to study the indoor microbiome more comprehensively, and to investigate the mechanism of these associations.
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Affiliation(s)
- Adekunle Gregory Fakunle
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
- Department of Medicine, University of Ibadan, Ibadan, 200284 Nigeria
| | - Nkosana Jafta
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Rajen N. Naidoo
- Discipline of Occupational and Environmental Health, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa
| | - Lidwien A. M. Smit
- Institute for Risk Assessment Sciences, Environmental Epidemiology Division (IRAS-EEPI), Utrecht University, Utrecht, The Netherlands
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14
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Navaratna S, Estcourt MJ, Burgess J, Waidyatillake N, Enoh E, Lowe AJ, Peters R, Koplin J, Dhamage SC, Lodge CJ. Childhood vaccination and allergy: A systematic review and meta-analysis. Allergy 2021; 76:2135-2152. [PMID: 33569761 DOI: 10.1111/all.14771] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND AND OBJECTIVE As the rise in prevalence of allergic diseases worldwide corresponds in time with increasing infant vaccination, it has been hypothesized that childhood vaccination may increase the risk of allergic disease. We aimed to synthesize the literature on the association between childhood vaccination and allergy. DESIGN We searched the electronic databases PubMed and EMBASE (January 1946-January 2018) using vaccination and allergy terms. METHODS Two authors selected papers according to the inclusion criteria. Pooled effects across studies were estimated using random-effects meta-analysis. Due to inadequate number of homogeneous publications on newer and underused vaccines, meta-analysis was limited to allergic outcomes following administration of (Bacillus Calmette-Guérin) BCG, measles or pertussis vaccination. The review was prospectively registered in the PROSPERO systematic review registry (NO: CRD42017071009). RESULTS A total of 35 publications based on cohort studies and 7 publications based on randomized controlled trials (RCTs) met the inclusion criteria. RCTs: From 2 studies, early vaccination with BCG vaccine was associated with a reduced risk of eczema (RR = 0.83; 95% CI = 0.73-0.93; I2 = 0%) but not food allergy or asthma. No association was found between pertussis vaccine and any allergic outcome based on a single RCT. COHORT STUDIES Childhood measles vaccination was associated with a reduced risk of eczema (RR = 0.65; 95% CI = 0.47-0.90, I2 = 0.0%), asthma (RR = 0.78; 95% CI = 0.62-0.98, I2 = 93.9%) and, with a similar, statistically non-significant reduction in sensitization (RR = 0.78; 95% CI = 0.61-1.01, I2 = 19.4%). CONCLUSIONS We found no evidence that childhood vaccination with commonly administered vaccines was associated with increased risk of later allergic disease. Our results from pooled analysis of both RCTs and cohort studies suggest that vaccination with BCG and measles vaccines were associated with a reduced risk of eczema.
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Affiliation(s)
- Samidi Navaratna
- Faculty of Medicine Department of Community Medicine University of Peradeniya Kandy Sri Lanka
| | - Marie J. Estcourt
- Wesfarmers Centre of Vaccines & Infectious Diseases Telethon Kids InstitutePerth Children's Hospital Nedlands Australia
| | - John Burgess
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
| | - Nilakshi Waidyatillake
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
| | - Elizabeth Enoh
- Reproductive Health Programme United Nations Population Fund (UNFPA) Yaounde Cameroon
| | - Adrian J. Lowe
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
| | - Rachel Peters
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Department of Paediatrics The University of Melbourne Parkville Vic. Australia
| | - Jennifer Koplin
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Department of Paediatrics The University of Melbourne Parkville Vic. Australia
| | - Shyamali C. Dhamage
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Centre for Food and Allergy Research (CFAR) Murdoch Children’s Research Institute Parkville Vic. Australia
| | - Caroline J. Lodge
- Allergy and Lung Health Unit Centre for Epidemiology and Biostatistics Melbourne School of Population and Global Health The University of Melbourne Parkville Vic. Australia
- Murdoch Children's Research InstituteRoyal Children’s Hospital Parkville Vic. Australia
- Centre for Food and Allergy Research (CFAR) Murdoch Children’s Research Institute Parkville Vic. Australia
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van Sadelhoff JHJ, Siziba LP, Buchenauer L, Mank M, Wiertsema SP, Hogenkamp A, Stahl B, Garssen J, Rothenbacher D, Genuneit J. Free and Total Amino Acids in Human Milk in Relation to Maternal and Infant Characteristics and Infant Health Outcomes: The Ulm SPATZ Health Study. Nutrients 2021; 13:nu13062009. [PMID: 34200908 PMCID: PMC8230437 DOI: 10.3390/nu13062009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/25/2022] Open
Abstract
Free amino acids (FAAs) are important regulators of key pathways necessary for growth, development, and immunity. Data on FAAs in human milk (HM) and their roles in infant development are limited. We investigated the levels of FAAs and total amino acids (TAA, i.e., the sum of conjugated amino acids and FAAs) in HM in relation to infant and maternal characteristics and immunological conditions. FAA and TAA levels in HM sampled at 6 weeks (n = 671) and 6 months (n = 441) of lactation were determined using high-performance liquid chromatography. Child growth was ascertained at 4–5 weeks and at 6–7 months of age. Child allergy and lower respiratory tract infections were assessed in the first years of life. Associations of amino acid (AA) levels in HM with child growth and health outcomes were determined by Spearman correlation and modified Poisson regression, respectively. Free glutamine, glutamate, and serine in 6-week HM positively correlated with infant weight gain in the first 4–5 weeks of age. Maternal pre-pregnancy weight and body mass index (BMI) were negatively correlated with free glutamine and asparagine in 6-week and 6-month HM and positively correlated with the sum of TAAs in 6-month HM, but significance was lost following confounder adjustment. Free glutamine was lower in 6-month HM of mothers with an allergy (either active or non-active). No consistent associations were found between FAAs in HM and child health outcomes. However, potential negative associations were observed between specific FAAs and the risk of food allergy. These results suggest that specific FAAs play a role in infant growth. Moreover, these findings warrant further investigations into the relation of FAAs in HM with infant health outcomes and maternal allergy.
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Affiliation(s)
- Joris H. J. van Sadelhoff
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (A.H.); (J.G.)
- Correspondence: ; Tel.: +31-625-699-571
| | - Linda P. Siziba
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, 04103 Leipzig, Germany; (L.P.S.); (L.B.); (J.G.)
| | - Lisa Buchenauer
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, 04103 Leipzig, Germany; (L.P.S.); (L.B.); (J.G.)
| | - Marko Mank
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (M.M.); (S.P.W.); (B.S.)
| | - Selma P. Wiertsema
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (M.M.); (S.P.W.); (B.S.)
| | - Astrid Hogenkamp
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (A.H.); (J.G.)
| | - Bernd Stahl
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (M.M.); (S.P.W.); (B.S.)
- Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584 CG Utrecht, The Netherlands
| | - Johan Garssen
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, 3584 CG Utrecht, The Netherlands; (A.H.); (J.G.)
- Danone Nutricia Research, 3584 CT Utrecht, The Netherlands; (M.M.); (S.P.W.); (B.S.)
| | | | - Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, 04103 Leipzig, Germany; (L.P.S.); (L.B.); (J.G.)
- Institute of Epidemiology and Medical Biometry, Ulm University, 89079 Ulm, Germany;
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16
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Holmdahl I, Filiou A, Stenberg Hammar K, Asarnoj A, Borres MP, van Hage M, Hedlin G, Söderhäll C, Konradsen JR. Early Life Wheeze and Risk Factors for Asthma-A Revisit at Age 7 in the GEWAC-Cohort. CHILDREN-BASEL 2021; 8:children8060488. [PMID: 34201058 PMCID: PMC8229161 DOI: 10.3390/children8060488] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 11/17/2022]
Abstract
One third of all toddlers are in need of medical care because of acute wheeze and many of these children have persistent asthma at school age. Our aims were to assess risk factors for and the prevalence of asthma at age 7 in a cohort of children suffering from an acute wheezing episode as toddlers. A total of 113 children, included during an acute wheezing episode (cases), and 54 healthy controls were followed prospectively from early pre-school age to 7 years. The protocol included questionnaires, ACT, FeNO, nasopharyngeal virus samples, blood sampling for cell count, vitamin D levels, and IgE to food and airborne allergens. The prevalence of asthma at age 7 was 70.8% among cases and 1.9% among controls (p < 0.001). Acute wheeze caused by rhinovirus (RV) infection at inclusion was more common among cases with asthma at age 7 compared to cases without asthma (p = 0.011) and this association remained significant following adjustment for infection with other viruses (OR 3.8, 95% CI 1.4–10.5). Cases with asthma at age 7 had been admitted to hospital more often (p = 0.024) and spent more days admitted (p = 0.01) during the year following inclusion compared to cases without asthma. RV infection stands out as the main associated factor for wheeze evolving to persistent asthma. Cases who developed asthma also had an increased need of hospital time and care for wheeze during the year after inclusion.
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Affiliation(s)
- Idun Holmdahl
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
- Correspondence:
| | - Anastasia Filiou
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Katarina Stenberg Hammar
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Anna Asarnoj
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Magnus P. Borres
- Department of Women’s and Children’s Health, Uppsala University, 752 36 Uppsala, Sweden;
| | - Marianne van Hage
- Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet and Karolinska University Hospital, 171 76 Stockholm, Sweden;
| | - Gunilla Hedlin
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Cilla Söderhäll
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Jon R. Konradsen
- Astrid Lindgren’s Children’s Hospital, Karolinska University Hospital, 171 64 Stockholm, Sweden; (A.F.); (K.S.H.); (A.A.); (G.H.); (C.S.); (J.R.K.)
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
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17
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Deng X, Thurston G, Zhang W, Ryan I, Jiang C, Khwaja H, Romeiko X, Marks T, Ye B, Qu Y, Lin S. Application of data science methods to identify school and home risk factors for asthma and allergy-related symptoms among children in New York. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 770:144746. [PMID: 33736384 DOI: 10.1016/j.scitotenv.2020.144746] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 12/09/2020] [Accepted: 12/21/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVES Few studies have comprehensively assessed multiple environmental exposures affecting children's health. This study applied machine-learning methods to evaluate how indoor environmental conditions at home and school contribute to asthma and allergy-related symptoms. METHODS We randomly selected 10 public schools representing different socioeconomic statuses in New York State (2017-2019) and distributed questionnaires to students to collect health status and home-and school-environmental exposures. Indoor air quality was measured at school, and ambient particle exposures (PM2.5 and components) were measured using real-time personal monitors for 48 h. We used random forest model to identify the most important risk factors for asthma and allergy-related symptoms, and decision tree for visualizing the inter-relationships among the multiple risk factors with the health outcomes. RESULTS The top contributing factors identified for asthma were family rhinitis history (relative importance: 10.40%), plant pollen trigger (5.48%); bedroom carpet (3.58%); environmental tobacco smoke (ETS) trigger symptom (2.98%); and ETS exposure (2.56%). For allergy-related symptoms, plant pollen trigger (10.88%), higher paternal education (7.33%), bedroom carpet (5.28%), family rhinitis history (4.78%), and higher maternal education (4.25%) were the strongest contributing factors. Conversely, primary heating with hot water radiator was negatively (-6.86%) associated with asthma symptoms. Younger children (<9 years old) with family history of rhinitis and carpeting in the bedroom were the prominent combined risk factors for asthma. Children jointly exposed to pollen, solvents, and carpeting in their home tended to have greater risks of allergy-related symptoms, even without family history of rhinitis. CONCLUSION Family rhinitis history, bedroom carpet, and pollen triggers were the most important risk factors for both asthma and allergy-related symptoms. Our new findings included that hot-water radiator was related to reduced asthma symptoms, and the combination of young age, rhinitis history, and bedroom carpeting was related to increased asthma symptoms. Further studies are needed to confirm our findings.
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Affiliation(s)
- Xinlei Deng
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - George Thurston
- Department of Environmental Medicine, School of Medicine, New York University, New York, NY 12144, USA
| | - Wangjian Zhang
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Ian Ryan
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Connie Jiang
- Department of Statistics, College of Arts and Sciences, University of Virginia, Charlottesville, VA 22904, USA
| | - Haider Khwaja
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA; Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA
| | - Xiaobo Romeiko
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Tia Marks
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Bo Ye
- Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Yanji Qu
- Guangdong Cardiovascular Institute, WHO Collaborating Center for Research and Training in Cardiovascular Diseases, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Shao Lin
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, NY 12144, USA; Department of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, NY 12144, USA.
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18
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Saikumar Jayalatha AK, Hesse L, Ketelaar ME, Koppelman GH, Nawijn MC. The central role of IL-33/IL-1RL1 pathway in asthma: From pathogenesis to intervention. Pharmacol Ther 2021; 225:107847. [PMID: 33819560 DOI: 10.1016/j.pharmthera.2021.107847] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 03/18/2021] [Indexed: 02/06/2023]
Abstract
Interleukin-33 (IL-33), a member of the IL-1 family, and its cognate receptor, Interleukin-1 receptor like-1 (IL-1RL1 or ST2), are susceptibility genes for childhood asthma. In response to cellular damage, IL-33 is released from barrier tissues as an 'alarmin' to activate the innate immune response. IL-33 drives type 2 responses by inducing signalling through its receptor IL-1RL1 in several immune and structural cells, thereby leading to type 2 cytokine and chemokine production. IL-1RL1 gene transcript encodes different isoforms generated through alternative splicing. Its soluble isoform, IL-1RL1-a or sST2, acts as a decoy receptor by sequestering IL-33, thereby inhibiting IL1RL1-b/IL-33 signalling. IL-33 and its receptor IL-1RL1 are therefore considered as putative biomarkers or targets for pharmacological intervention in asthma. This review will provide an overview of the genetics and biology of the IL-33/IL-1RL1 pathway in the context of asthma pathogenesis. It will discuss the potential and complexities of targeting the cytokine or its receptor, how genetics or biomarkers may inform precision medicine for asthma targeting this pathway, and the possible positioning of therapeutics targeting IL-33 or its receptor in the expanding landscape of novel biologicals applied in asthma management.
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Affiliation(s)
- A K Saikumar Jayalatha
- University of Groningen, University Medical Centre Groningen, Department of Pathology and Medical Biology, Laboratory of Experimental Pulmonology and Inflammation Research (EXPIRE), Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - L Hesse
- University of Groningen, University Medical Centre Groningen, Department of Pathology and Medical Biology, Laboratory of Experimental Pulmonology and Inflammation Research (EXPIRE), Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands
| | - M E Ketelaar
- University of Groningen, University Medical Centre Groningen, Department of Pathology and Medical Biology, Laboratory of Experimental Pulmonology and Inflammation Research (EXPIRE), Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Beatrix Children's Hospital, Department of Paediatric Pulmonology and Paediatric Allergology, Groningen, the Netherlands
| | - G H Koppelman
- University of Groningen University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Beatrix Children's Hospital, Department of Paediatric Pulmonology and Paediatric Allergology, Groningen, the Netherlands
| | - M C Nawijn
- University of Groningen, University Medical Centre Groningen, Department of Pathology and Medical Biology, Laboratory of Experimental Pulmonology and Inflammation Research (EXPIRE), Groningen, the Netherlands; University of Groningen University Medical Centre Groningen, Groningen Research Institute for Asthma and COPD, Groningen, the Netherlands.
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19
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Liu Y, Xia G, Liu S, Song Z. Development of Oral Chewable Tablets Containing Montelukast Nanoparticles for the Treatment of Childhood Asthma: Preclinical Study in Animal Model. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim of the present study was to formulate oral chewable tablets of Montelukast (MTL) in the form of nanoparticles (NP’s). The MTL loaded NP’s were formulated by ionotropic external gelation method using tripolyphosphate (TPP) as crosslinking agent and Tween 60 as surfactant.
NP’s were characterized for drug loading, encapsulation efficiency, surface morphology, saturation solubility, particle size, zeta potential and polydispersity index. The optimized NP formulation was used for development of chewable tablets using direct compression method. The prepared
tablets were characterized for disintegration test, dissolution, thickness, hardness, friability and assay. The optimized formulation was evaluated in asthamatic animals to demonstrate the efficiency in asthama. The encapsulation efficiency of NP’s was found between 91.24 to 98.21% while
drug loading was in the range of 10.09–14.25%. All formulations were found of nanosized in nature (110 to 200 nm) with excellent zeta potential (20.12 to 22.27 mV). PDI of all NP formulations were found within acceptable limit (less than 0.3). The nanoparticles were found spherical in
shape with smooth surface. The saturation solubility of MTL was enhanced nearly 10 times (92 mg/ml) as compared to pure MTL saturation solubility. All physical parameters of the tablets were found within range. The optimized tablets showed disintegration time of 20 sec while other formulations
showed DT in the rage of 35–57 sec. Tab1 (Optimized formulation) showed almost 100% MTL release from chewable tablets within the period of 30 min. Reduction in lung resistance (RI) was found in animals treated with Tab1. This reduction in RI was found nearly two fold and three fold as
compare to MTL treated and control group animals. These observations clearly support the efficacy of chewable tablets containing nanoparticulate MTL in asthmatic animals.
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Affiliation(s)
- Ye Liu
- Otolaryngology, Ningbo Beilun People’s Hospital, 1288 Lushan East Road, Beilun, Ningbo, Zhejiang Province, 315000, China
| | - Guihua Xia
- Otolaryngology, Ningbo Beilun People’s Hospital, 1288 Lushan East Road, Beilun, Ningbo, Zhejiang Province, 315000, China
| | - Shaosheng Liu
- Otolaryngology, Ningbo Beilun People’s Hospital, 1288 Lushan East Road, Beilun, Ningbo, Zhejiang Province, 315000, China
| | - Zhenyu Song
- Otolaryngology, Ningbo Beilun People’s Hospital, 1288 Lushan East Road, Beilun, Ningbo, Zhejiang Province, 315000, China
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20
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Barbiellini Amidei C, Comoretto R, Zanier L, Donà D, Cantarutti A, Canova C. Acid-suppressive medications in the first year of life and risk of childhood asthma: a population-based birth cohort study. Eur Respir J 2020; 56:13993003.00197-2020. [PMID: 32499332 DOI: 10.1183/13993003.00197-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 05/25/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Claudio Barbiellini Amidei
- Unit of Biostatistics, Epidemiology and Public Health, Dept of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Rosanna Comoretto
- Unit of Biostatistics, Epidemiology and Public Health, Dept of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Loris Zanier
- Epidemiological Service, Health Directorate, Friuli Venezia Giulia Region, Udine, Italy
| | - Daniele Donà
- Division of Paediatric Infectious Diseases, Dept for Woman and Child Health, University of Padua, Padua, Italy
| | - Anna Cantarutti
- Dept of Statistics and Quantitative Methods, Milano Bicocca, Milan, Italy
| | - Cristina Canova
- Unit of Biostatistics, Epidemiology and Public Health, Dept of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
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21
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Han SM, Binia A, Godfrey KM, El-Heis S, Cutfield WS. Do Human Milk Oligosaccharides Protect Against Infant Atopic Disorders and Food Allergy? Nutrients 2020; 12:nu12103212. [PMID: 33096669 PMCID: PMC7589050 DOI: 10.3390/nu12103212] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/14/2020] [Accepted: 10/20/2020] [Indexed: 12/28/2022] Open
Abstract
Atopic disorders (AD), often coexistent with food allergy (FA), start developing in early life and have lifelong health consequences. Breastfeeding is thought to be protective against AD and FA, but the data are controversial, and mechanisms are not well understood. Human milk oligosaccharides (HMOs) are complex carbohydrates that are abundant in human milk. These are thought to contribute to the development of the infant immune system by (i) promoting healthy microbiome, (ii) inhibiting pathogen binding to gut mucosa and (iii) modulating the immune system. Differences in microbiome composition between allergic and healthy infants have been observed, regardless of breastfeeding history. To date, limited studies have examined the preventive effects of HMOs on AD and FA in infants and current data relies on observation studies as trials of varying HMO intake through randomising individuals to breastfeeding are unethical. There is evidence for beneficial effects of breastfeeding on lowering the risks of FA, eczema and asthma but there are inconsistencies amongst studies in the duration of breastfeeding, diagnostic criteria for AD and the age at which the outcome was assessed. Furthermore, current analytical methods primarily used today only allow detection of 16-20 major HMOs while more than 100 types have been identified. More large-scale longitudinal studies are required to investigate the role of HMO composition and the impact of changes over the lactation period in preventing AD and FA later in life.
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Affiliation(s)
- Soo Min Han
- Liggins Institute, The University of Auckland, Auckland 1023, New Zealand;
| | - Aristea Binia
- Nestlé Research, Société des Produits Nestlé SA, 1000 Lausanne, Switzerland;
| | - Keith M. Godfrey
- NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton SO17 1BJ, UK;
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton SO17 1BJ, UK;
| | - Sarah El-Heis
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton SO17 1BJ, UK;
| | - Wayne S. Cutfield
- Liggins Institute, The University of Auckland, Auckland 1023, New Zealand;
- A Better Start—National Science Challenge, Liggins Institute, The University of Auckland, Auckland 1023, New Zealand
- Correspondence: ; Tel.: +64-9-923-4476
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22
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Zheng P, Huang C, Leng D, Sun B, Zhang XD. Transcriptome analysis of peripheral whole blood identifies crucial lncRNAs implicated in childhood asthma. BMC Med Genomics 2020; 13:136. [PMID: 32948203 PMCID: PMC7501638 DOI: 10.1186/s12920-020-00785-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 08/24/2020] [Indexed: 12/13/2022] Open
Abstract
Background Asthma is a chronic disorder of both adults and children affecting more than 300 million people heath worldwide. Diagnose and treatment for asthma, particularly in childhood asthma have always remained a great challenge because of its complex pathogenesis and multiple triggers, such as allergen, viral infection, tobacco smoke, dust, etc. It is thereby great significant to deeply investigate the transcriptome changes in asthmatic children before and after desensitization treatment, in order that we could identify potential and key mRNAs and lncRNAs which might be considered as useful RNA molecules for observing and supervising desensitization therapy for asthma, which might guide the diagnose and therapy in childhood asthma. Methods In the present study, we performed a systematic transcriptome analysis based on the deep RNA sequencing of ten asthmatic children before and after desensitization treatment, including identification of lncRNAs using a stringent filtering pipeline, differential expression analysis and network analysis, etc. Results First, a large number of lncRNAs were identified and characterized. Then differential expression analysis revealed 39 mRNAs and 15 lncRNAs significantly differentially expressed which involved in two biological processes and pathways. A co-expressed network analysis figured out a desensitization-treatment-related module which contains 27 mRNAs and 21 lncRNAs using WGCNA R package. Module analysis disclosed 17 genes associated to asthma at distinct level. Subsequent network analysis based on PCC figured out several key lncRNAs probably interacted to those key asthma-related genes, i.e., LINC02145, GUSBP2. Our functional investigation indicated that their functions might involve in immune, inflammatory response and apoptosis process. Conclusions Our study successfully discovered many key noncoding RNA molecules related to pathogenesis of asthma and relevant treatment, which may provide some clues for asthmatic diagnose and therapy in future.
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Affiliation(s)
- Peiyan Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Chen Huang
- CRDA, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Dongliang Leng
- CRDA, Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.
| | - Xiaohua Douglas Zhang
- CRDA, Faculty of Health Sciences, University of Macau, Taipa, Macau, China. .,Department of Biostatistics, Yale School of Public Health, New Haven, CT 06510, USA.
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23
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Brunwasser SM, Snyder BM, Driscoll AJ, Fell DB, Savitz DA, Feikin DR, Skidmore B, Bhat N, Bont LJ, Dupont WD, Wu P, Gebretsadik T, Holt PG, Zar HJ, Ortiz JR, Hartert TV. Assessing the strength of evidence for a causal effect of respiratory syncytial virus lower respiratory tract infections on subsequent wheezing illness: a systematic review and meta-analysis. THE LANCET RESPIRATORY MEDICINE 2020; 8:795-806. [PMID: 32763206 PMCID: PMC7464591 DOI: 10.1016/s2213-2600(20)30109-0] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Figures] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 12/26/2022]
Abstract
Background Although a positive association has been established, it is unclear whether lower respiratory tract infections (LRTIs) with respiratory syncytial virus (RSV) cause chronic wheezing illnesses. If RSV-LRTI were causal, we would expect RSV-LRTI prevention to reduce the incidence of chronic wheezing illnesses in addition to reducing acute disease. We aimed to evaluate the strength of evidence for a causal effect of RSV-LRTI on subsequent chronic wheezing illness to inform public health expectations for RSV vaccines. Methods We did a systematic review and meta-analysis of observational studies evaluating the association between RSV-LRTI and subsequent wheezing illness (exposure studies) and studies evaluating the association between RSV immunoprophylaxis and subsequent wheezing illness (immunoprophylaxis studies). Exposure studies were included if the exposure group members had an LRTI with laboratory-confirmed RSV and if the exposure ascertainment period began before 2 years of age and ended before 5 years of age. We required a wash-out period of more than 30 days between the index RSV-LRTI and the outcome measurement to allow for resolution of the acute illness. Comparisons between RSV-LRTI and non-RSV-LRTI were not included. Immunoprophylaxis studies were included if they measured the association with subsequent wheezing illness relative to a control group, either in a randomised controlled trial (RCT) or an observational design. For the immunoprophylaxis drugs in question, we required evidence of efficacy in targeting RSV-LRTI from at least one RCT to ensure biological plausibility. All variations of wheezing illness were combined into a single outcome that refers broadly to asthma or any other respiratory illness with wheezing symptoms. Ovid MEDLINE and Embase databases were searched from inception up to Aug 28, 2018. We evaluated whether data from exposure studies could provide evidence against the most viable non-causal theory that RSV-LRTI is a marker of respiratory illness susceptibility rather than a causal factor. Additionally, we tested whether RSV immunoprophylaxis reduces the odds of subsequent wheezing illnesses. We used a random-effects modelling framework and, to accommodate studies providing multiple correlated estimates, robust variance estimation meta-regressions. Meta-regression coefficients (b) quantify differences between exposure and comparator groups on the loge odds ratio (loge OR) scale. Findings From 14 235 records we identified 57 eligible articles that described 42 studies and provided 153 effect estimates. 35 studies estimated the direct effect of RSV-LRTI on wheezing illnesses (exposure studies) and eight evaluated the effect of RSV immunoprophylaxis (immunoprophylaxis studies). Exposure studies that adjusted for genetic influences yielded a smaller mean adjusted OR estimate (aOR+ 2·45, 95% CI 1·23–4·88) compared with those that did not (4·17, 2·36–7·37), a significant difference (b 0·53, 95% CI 0·04–1·02). Infants who were not protected with RSV immunoprophylaxis tended to have higher odds of subsequent wheezing illness, as we would expect if RSV-LRTI were causal, but the effect was not significant (OR+ 1·21, 95% CI 0·73–1·99). There was generally a high threat of confounding bias in the observational studies. Additionally, in both the observational studies and immunoprophylaxis RCTs, there was high risk of bias due to missing outcome data. Interpretation Our findings, limited to exposure and immunoprophylaxis studies, do not support basing policy decisions on an assumption that prevention of RSV-LRTI will reduce recurrent chronic wheezing illnesses. Funding Bill & Melinda Gates Foundation.
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Affiliation(s)
- Steven M Brunwasser
- Department of Psychology, Rowan University, Glassboro, NJ, USA; Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Amanda J Driscoll
- Centre for Vaccine Development and Global Health, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Deshayne B Fell
- Children's Hospital of Eastern Ontario Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - David A Savitz
- School of Public Health, Brown University, Providence, RI, USA
| | - Daniel R Feikin
- Department of Immunizations, Vaccines and Biologicals, WHO, Geneva, Switzerland
| | | | - Niranjan Bhat
- Center for Vaccine Innovation and Access, PATH, Washington, DC, USA
| | - Louis J Bont
- Wilhelmina Children's Hospital and University Medical Centre Utrecht, Utrecht University, Utrecht, Netherlands
| | | | - Pingsheng Wu
- Vanderbilt University Medical Center, Nashville, TN, USA
| | | | - Patrick G Holt
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
| | - Heather J Zar
- Red Cross War Memorial Children's Hospital and South African Medical Research Council Unit on Child and Adolescent Health, University of Cape Town, Cape Town, South Africa
| | - Justin R Ortiz
- Centre for Vaccine Development and Global Health, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Tina V Hartert
- Department of Psychology, Rowan University, Glassboro, NJ, USA.
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24
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Li X, Song P, Zhu Y, Lei H, Chan KY, Campbell H, Theodoratou E, Rudan I. The disease burden of childhood asthma in China: a systematic review and meta-analysis. J Glob Health 2020; 10:010801. [PMID: 32257166 PMCID: PMC7101212 DOI: 10.7189/jogh.10.01081] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background In China, childhood asthma prevalence showed a remarkable increase in the past decades. An updated epidemiological assessment of childhood asthma in China with a focus on prevalence and time trends is required. Methods We systematically searched three main Chinese databases and one English database to identify epidemiological studies of the prevalence of childhood asthma in China. Asthma cases were defined according to one of the five sets of Chinese diagnostic criteria which were established by the Children Respiratory Disease Group. We estimated age- and sex-specific prevalence of asthma using a multilevel mixed-effects logistic regression. We presented the time trends of asthma prevalence between 1990 and 2020 by age, sex and setting (urban vs rural), and also estimated the number of children affected by asthma in 2010. Results In 1990, the prevalence of asthma ranged from 0.13% (95% confidence interval (CI) = 0.10-0.20) in rural girls aged 14 years to 1.34% (95% CI = 1.11-1.67) in urban boys aged five years. In 2010, the overall prevalence of asthma in Chinese children aged 0-14 years was 2.12% (95% CI = 1.83-2.51), corresponding to 5.16 million children living with asthma. Children aged 5-9 years were with the highest prevalence estimate of 2.65% (95% CI = 2.31-3.12) and those aged 10-14 years were with the lowest (1.48%, 95% CI = 1.26-1.78). In 2020, it is expected that this disparity will continue, with the prevalence of asthma being at the lowest level among rural girls aged 14 years (1.11%, 95% CI = 0.82-1.54) and at the highest level among urban boys aged four years (10.27%, 95% CI = 8.61-12.18). Over the 30 years (1990-2020), the prevalence of asthma in children aged 0-14 years has increased in both sexes and settings, which was consistently the lowest in rural girls and the highest in urban boys. Conclusions This study shows that childhood asthma has been increasingly prevalent in China. Asthma is more frequent in boys and in rural areas. The detailed and systematic estimates of asthma prevalence in this study constitute the best currently available basis for policymaking, planning, and allocation of health and welfare resources related to the burden of childhood asthma in China.
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Affiliation(s)
- Xue Li
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK.,Joint first authors
| | - Peige Song
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK.,Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, UK.,Joint first authors
| | - Yongjian Zhu
- Department of Cardiology, Zhengzhou University, Zhengzhou, China
| | - Haohao Lei
- Department of Social Science, University College London, London, UK
| | - Kit Yee Chan
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Harry Campbell
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Evropi Theodoratou
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK.,Cancer Research UK Edinburgh Centre, Medical Research Council Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Igor Rudan
- Centre for Global Health Research, Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
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25
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Oluwole O, Rennie DC, Afanasieva A, Lawson JA. Personal and early life factors associated with new-onset asthma, remission, and persistence of asthma in a 2-year follow-up of schoolchildren. J Asthma 2020; 58:488-496. [PMID: 31906746 DOI: 10.1080/02770903.2019.1709865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
OBJECTIVE The natural course of childhood asthma, after its onset, is characterized by periods of persistence, relapse and remission. To investigate personal and early life factors associated with new-onset asthma, persistence and remission among children. METHODS The study was conducted in the province of Saskatchewan, Canada. Children in grades Kindergarten to Grade 8 (ages 5-14 years) participated in a cross-sectional study in 2013. In 2015, we approached those who gave consent in 2013 to be re-contacted, creating a prospective cohort. Data were collected using questionnaires in both years. Participants in 2013 who also had data in 2015 (25%: n = 324/1,348) had their asthma status reclassified and longitudinal descriptors were applied: "no asthma", "new-onset asthma", "persistent" or "remission". Personal and early life factors associations with asthma outcomes in 2015 were evaluated. RESULTS Among those without asthma in 2013 (n = 245), the incidence of new-onset asthma in 2015 was 7.2%. Among those with asthma in 2013 (n = 79), 47.1% had remission and 52.9% had persistent asthma in 2015. Parental history of asthma (adjusted odds ratio (aOR): 4.99; 95% confidence interval (CI): 1.88-28.27), early life respiratory infection (aOR: 1.92; 95%CI: 1.47-7.88), early life allergy [aOR: 6.39; 95%CI: 1.34-30.58) and early life infection (aOR: 4.99; 95%CI: 1.19-20.93) were associated with new onset asthma. Similarly, while parental history of asthma (aOR: 1.13; 95%CI: 0.29-4.34), early life respiratory infection (aOR: 2.71; 95%CI: 0.70-10.45), and early life ear infection (aOR: 1.34; 95%CI: 0.36-5.05) were also positively association with persistent asthma, the associations were not statistically significant. CONCLUSION Parental history of asthma, early life respiratory infection and allergy might not only influence the onset of childhood asthma but also be associated with asthma persistence.
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Affiliation(s)
- Oluwafemi Oluwole
- College of Nursing, University of Saskatchewan, Saskatoon, SK, Canada.,Canadian Centre for Health and Safety in Agriculture, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Donna C Rennie
- College of Nursing, University of Saskatchewan, Saskatoon, SK, Canada.,Canadian Centre for Health and Safety in Agriculture, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Anna Afanasieva
- Canadian Centre for Health and Safety in Agriculture, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Joshua A Lawson
- Canadian Centre for Health and Safety in Agriculture, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.,Department of Medicine, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
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Cantu P, Kim Y, Sheehan C, Powers D, Margerison CE, Cubbin C. Downward Neighborhood Poverty Mobility during Childhood Is Associated with Child Asthma: Evidence from the Geographic Research on Wellbeing (GROW) Survey. J Urban Health 2019; 96:558-569. [PMID: 31049846 PMCID: PMC6890910 DOI: 10.1007/s11524-019-00356-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Causal evidence regarding neighborhood effects on health remains tenuous. Given that children have little agency in deciding where they live and spend proportionally more of their lives in neighborhoods than adults, their exposure to neighborhood conditions could make their health particularly sensitive to neighborhood effects. In this paper, we examine the relationship between exposure to poor neighborhoods from birth to ages 4-10 and childhood asthma. We used data from the 2003-2007 California Maternal Infant and Health Assessment (MIHA) and the 2012-2013 Geographic Research on Wellbeing (GROW) survey (N = 2619 mother/child dyads) to fit relative risks of asthma for children who experience different types of neighborhood poverty mobility using Poisson regression controlling for individual-level demographic and socioeconomic characteristics, and neighborhood satisfaction. Our results demonstrate that [1] living in a poor neighborhood at baseline and follow-up and [2] moving into a poor neighborhood were each associated with higher risk of asthma, compared with children not living in a poor neighborhood at either time. Exposure to impoverished neighborhoods and downward neighborhood poverty mobility matters for children's health, particularly for asthma. Public health practitioners and policymakers need to address downward neighborhood economic mobility, in addition to downward family economic mobility, in order to improve children's health.
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Affiliation(s)
- P Cantu
- Population Research Center, The University of Texas at Austin, 1925 San Jacinto Boulevard, Austin, TX, 78712, USA
- Department of Sociology, The University of Texas at Austin, Austin, TX, USA
| | - Y Kim
- School of Kinesiology and Institute for Social Research, University of Michigan, Ann Arbor, MI, USA
| | - C Sheehan
- School of Social and Family Dynamics, Arizona State University, Tempe, AZ, USA
| | - D Powers
- Population Research Center, The University of Texas at Austin, 1925 San Jacinto Boulevard, Austin, TX, 78712, USA
- Department of Sociology, The University of Texas at Austin, Austin, TX, USA
| | - C E Margerison
- Department of Epidemiology and Biostatistics, Michigan State University, East Lansing, MI, USA
| | - Catherine Cubbin
- Population Research Center, The University of Texas at Austin, 1925 San Jacinto Boulevard, Austin, TX, 78712, USA.
- Steve Hicks School of Social Work, The University of Texas at Austin, 1925 San Jacinto Boulevard, Austin, TX, 78712, USA.
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Helfrich S, Mindt BC, Fritz JH, Duerr CU. Group 2 Innate Lymphoid Cells in Respiratory Allergic Inflammation. Front Immunol 2019; 10:930. [PMID: 31231357 PMCID: PMC6566538 DOI: 10.3389/fimmu.2019.00930] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 04/11/2019] [Indexed: 12/14/2022] Open
Abstract
Millions of people worldwide are suffering from allergic inflammatory airway disorders. These conditions are regarded as a consequence of multiple imbalanced immune events resulting in an inadequate response with the exact underlying mechanisms still being a subject of ongoing research. Several cell populations have been proposed to be involved but it is becoming increasingly evident that group 2 innate lymphoid cells (ILC2s) play a key role in the initiation and orchestration of respiratory allergic inflammation. ILC2s are important mediators of inflammation but also tissue remodeling by secreting large amounts of signature cytokines within a short time period. Thereby, ILC2s instruct innate but also adaptive immune responses. Here, we will discuss the recent literature on allergic inflammation of the respiratory tract with a focus on ILC2 biology. Furthermore, we will highlight different therapeutic strategies to treat pulmonary allergic inflammation and their potential influence on ILC2 function as well as discuss the perspective of using human ILC2s for diagnostic purposes.
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Affiliation(s)
- Sofia Helfrich
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Barbara C Mindt
- Department of Microbiology & Immunology, McGill University, Montréal, QC, Canada.,McGill University Research Centre on Complex Traits (MRCCT), McGill University, Montréal, QC, Canada.,FOCiS Centre of Excellence in Translational Immunology (CETI), McGill University, Montréal, QC, Canada
| | - Jörg H Fritz
- Department of Microbiology & Immunology, McGill University, Montréal, QC, Canada.,McGill University Research Centre on Complex Traits (MRCCT), McGill University, Montréal, QC, Canada.,FOCiS Centre of Excellence in Translational Immunology (CETI), McGill University, Montréal, QC, Canada.,Department of Physiology, McGill University, Montréal, QC, Canada
| | - Claudia U Duerr
- Institute of Microbiology, Infectious Diseases and Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Thapa G, Nair S, Oetjen C. Implementing an Evidence-Based, Asthma Decision Support Tool for Children Younger Than 5 Years Old. J Pediatr Health Care 2019; 33:296-308. [PMID: 30826137 DOI: 10.1016/j.pedhc.2018.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Asthma is underdiagnosed, particularly for children younger than 5 years old. Clinical practice guidelines have been shown to improve asthma diagnosis and management, but are underutilized. This evidence-based practice project aimed to develop, implement, and evaluate a three-page decision support tool (DST) to improve the asthma diagnosis process among children younger than 5 years old. METHODS This project used a pre-experimental design and was conducted in a pediatric primary care setting with a predominantly South Asian population. The authors analyzed the utilization of the DST as well as the end-users' perception of the tool. RESULTS Despite above-average results in the end-users' usability scale, the DST had poor utilization. DISCUSSION Implementation of the DST is recommended at similar pediatric primary care sites. The EBP Project team recommends translating the DST to the electronic health record and improving the roles of the champion.
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Affiliation(s)
- Grace Thapa
- Grace Thapa, DNP Graduate, George Mason University, Fairfax, VA; and Family Nurse Practitioner, Burke Family Practice, Burke, VA
| | - Sharmila Nair
- Sharmila Nair, Pediatrician, Sterling Pediatrics, Sterling, VA
| | - Cheryl Oetjen
- Cheryl Oetjen, Assistant Professor and Assistant Dean for MSN and DNP Programs in the School of Nursing, George Mason University, School of Nursing, Fairfax, VA..
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Urquhart A, Clarke P. US racial/ethnic disparities in childhood asthma emergent health care use: National Health Interview Survey, 2013-2015. J Asthma 2019; 57:510-520. [PMID: 30958048 DOI: 10.1080/02770903.2019.1590588] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Objective: Racial/ethnic disparities in Emergency Department (ED) visits due to childhood asthma are well documented. We assessed disparities among multiple racial/ethnic groups and examined the effects of asthma management in emergent health care use among children in the United States.Methods: Data come from the sample child component of the 2013-2015 National Health Interview Survey (NHIS) (ages 2-17). Among children with current asthma, (N = 3336) we assessed racial/ethnic disparities in ED visits due to asthma in the past 12 months. We used multivariate logistic regression to calculate model adjusted odds ratios (ORs) including adjustment of asthma management questions available in NHIS 2013: use of an asthma action plan, preventative medication use, and an asthma management course.Results: Using 2013-2015 NHIS data, Puerto Rican children had the highest prevalence of current asthma (21.2%). Among children with asthma, significantly higher odds of ED visits were seen among all minority subgroups (except non-Hispanic other) compared to non-Hispanic white children with Hispanic other having the highest adjusted odds ratio (OR = 2.4), followed by Puerto Rican (OR = 2.0), Mexican American (OR = 1.8) and non-Hispanic black children (OR = 1.7). In sub analyses using 2013 data, adjustment of management measures resulted in a modest to no effect in the odds of having an ED visit due to asthma.Conclusions: The high prevalence of asthma and the disparity in asthma related ED visits among minority children exemplify the need for further research in understanding the mechanisms underlying the continuing existence of these health imbalances.
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Affiliation(s)
- Audrey Urquhart
- University of Michigan School of Public Health, Ann Arbor, MI, USA
| | - Philippa Clarke
- University of Michigan School of Public Health, Ann Arbor, MI, USA
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Epigenetic age acceleration is associated with allergy and asthma in children in Project Viva. J Allergy Clin Immunol 2019; 143:2263-2270.e14. [PMID: 30738172 DOI: 10.1016/j.jaci.2019.01.034] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Epigenetic clocks have been suggested to capture one feature of the complexity between aging and the epigenome. However, little is known about the epigenetic clock in childhood allergy and asthma. OBJECTIVE We sought to examine associations of DNA methylation age (DNAmAge) and epigenetic age acceleration with childhood allergy and asthma. METHODS We calculated DNAmAge and age acceleration at birth, early childhood, and midchildhood based on the IlluminaHumanMethylation450BeadChip in Project Viva. We evaluated epigenetic clock associations with allergy and asthma using covariate-adjusted linear and logistic regressions. We attempted to replicate our findings in the Genetics of Asthma in Costa Rica Study. RESULTS At midchildhood (mean age, 7.8 years) in Project Viva, DNAmAge and age acceleration were cross-sectionally associated with greater total serum IgE levels and greater odds of atopic sensitization. Every 1-year increase in intrinsic epigenetic age acceleration was associated with a 1.22 (95% CI, 1.07-1.39), 1.17 (95% CI, 1.03-1.34), and 1.29 (95% CI, 1.12-1.49) greater odds of atopic sensitization and environmental and food allergen sensitization. DNAmAge and extrinsic epigenetic age acceleration were also cross-sectionally associated with current asthma at midchildhood. DNAmAge and age acceleration at birth and early childhood were not associated with midchildhood allergy or asthma. The midchildhood association between age acceleration and atopic sensitization were replicated in an independent data set. CONCLUSIONS Because the epigenetic clock might reflect immune and developmental components of biological aging, our study suggests pathways through which molecular epigenetic mechanisms of immunity, development, and maturation can interact along the age axis and associate with childhood allergy and asthma by midchildhood.
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Kudagammana ST, Mohotti K. Environmental exposure to agrochemicals and allergic diseases in preschool children in high grown tea plantations of Sri Lanka. Allergy Asthma Clin Immunol 2018; 14:84. [PMID: 30534163 PMCID: PMC6280469 DOI: 10.1186/s13223-018-0308-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 11/26/2018] [Indexed: 11/17/2022] Open
Abstract
Background Exposure to agrochemicals is one of the many aetiological agents, postulated to cause allergic diseases. In this study, we have compared the prevalence of allergic diseases among preschool children growing in environments exposed to agrochemicals and artificial fertilizers with those who are not exposed to them. Methods Our study was conducted on preschool children in two tea estates in the hill country of Sri Lanka, one using conventional agricultural practices and the other using organic practices. Data collection was done by using an interviewer administered questionnaire. Children with potential allergic conditions were further evaluated clinically by medical officers. Blood was drawn for full blood count and a blood picture. Results Data from 81 preschool children from an organic estate (Haputale) and 101 preschool children from a conventional estate (Thalawakelle) were analysed. Wheezing was noted in 41.2% of children from the organic estate and 59.8% from the conventional estate. The respective percentages for allergic rhinitis were as 37.7% and 82.5% while for eczema they were 17.5% and 20.28%. Among the two populations percentages of eosinophilia > 600/mm3 were as 26.1% and 34.1% respectively. Conclusions Allergic conditions were more common in preschool children with environmental exposure to agrochemicals and chemical fertilizers when compared to that of organic cultivation systems. Stricter rules are needed when using agrochemicals to prevent their harmful effects, including allergic diseases, on children.
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32
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Reznikov LR, Liao YSJ, Gu T, Davis KM, Kuan SP, Atanasova KR, Dadural JS, Collins EN, Guevara MV, Vogt K. Sex-specific airway hyperreactivity and sex-specific transcriptome remodeling in neonatal piglets challenged with intra-airway acid. Am J Physiol Lung Cell Mol Physiol 2018; 316:L131-L143. [PMID: 30407862 DOI: 10.1152/ajplung.00417.2018] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Acute airway acidification is a potent stimulus of sensory nerves and occurs commonly with gastroesophageal reflux disease, cystic fibrosis, and asthma. In infants and adults, airway acidification can acutely precipitate asthma-like symptoms, and treatment-resistant asthma can be associated with gastroesophageal reflux disease. Airway protective behaviors, such as mucus secretion and airway smooth muscle contraction, are often exaggerated in asthma. These behaviors are manifested through activation of neural circuits. In some populations, the neural response to acid might be particularly important. For example, the immune response in infants is relatively immature compared with adults. Infants also have a high frequency of gastroesophageal reflux. Thus, in the current study, we compared the transcriptomes of an airway-nervous system circuit (e.g., tracheal epithelia, nodose ganglia, and brain stem) in neonatal piglets challenged with intra-airway acid. We hypothesized that the identification of parallel changes in the transcriptomes of two neutrally connected tissues might reveal the circuit response, and, hence, molecules important for the manifestation of asthma-like features. Intra-airway acid induced airway hyperreactivity and airway obstruction in male piglets. In contrast, female piglets displayed airway obstruction without airway hyperreactivity. Pairwise comparisons revealed parallel changes in genes directly implicated in airway hyperreactivity ( scn10a) in male acid-challenged piglets, whereas acid-challenged females exhibited parallel changes in genes associated with mild asthma ( stat 1 and isg15). These findings reveal sex-specific responses to acute airway acidification and highlight distinct molecules within a neural circuit that might be critical for the manifestation of asthma-like symptoms in pediatric populations.
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Affiliation(s)
- Leah R Reznikov
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Yan Shin J Liao
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Tongjun Gu
- Bioinformatics, Interdisciplinary Center for Biotechnology Research, University of Florida , Gainesville, Florida
| | - Katelyn M Davis
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Shin Ping Kuan
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Kalina R Atanasova
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Joshua S Dadural
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Emily N Collins
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Maria V Guevara
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
| | - Kevin Vogt
- Department of Physiological Sciences, University of Florida , Gainesville, Florida
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Abreo A, Gebretsadik T, Stone CA, Hartert TV. The impact of modifiable risk factor reduction on childhood asthma development. Clin Transl Med 2018; 7:15. [PMID: 29892940 PMCID: PMC5995769 DOI: 10.1186/s40169-018-0195-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 06/04/2018] [Indexed: 01/14/2023] Open
Abstract
Childhood asthma is responsible for significant morbidity and health care expenditures in the United States. The incidence of asthma is greatest in early childhood, and the prevalence is projected to continue rising in the absence of prevention and intervention measures. The prevention of asthma will likely require a multifaceted intervention strategy; however, few randomized controlled trials have assessed such approaches. The purpose of this review was to use previous meta-analyses to identify the most impactful risk factors for asthma development and evaluate the effect of risk factor reduction on future childhood asthma prevalence. Common and modifiable risk factors with large effects included acute viral respiratory infections, antibiotic use, birth by cesarean section, nutritional disorders (overweight, obesity), second hand smoke exposure, allergen sensitization, breastfeeding, and sufficient prenatal vitamin D level. Evaluation and estimates of risk factor modification on populations at risk should guide scientists and policymakers toward high impact areas that are apt for additional study and intervention.
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Affiliation(s)
- Andrew Abreo
- Department of Medicine, Center for Asthma Research, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Tebeb Gebretsadik
- Department of Biostatistics, Center for Asthma Research, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Cosby A Stone
- Department of Medicine, Center for Asthma Research, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Tina V Hartert
- Department of Medicine, Center for Asthma Research, Vanderbilt University Medical Center, Nashville, TN, USA.
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Lenney W, Bush A, Fitzgerald DA, Fletcher M, Ostrem A, Pedersen S, Szefler SJ, Zar HJ. Improving the global diagnosis and management of asthma in children. Thorax 2018. [PMCID: PMC6035489 DOI: 10.1136/thoraxjnl-2018-211626] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Asthma is the most common chronic condition in children worldwide. It affects daytime activities, sleep and school attendance and causes anxiety to parents, families and other carers. The quality of asthma diagnosis and management globally still needs substantial improvement. From infancy to the teenage years, there are age-specific challenges, including both underdiagnosis and overdiagnosis with stigma-related barriers to treatment in some cultures and in adolescents. Guidelines are increasingly evidence based, but their impact on improving outcomes has been negligible in many parts of the world, often due to lack of implementation. New thinking is needed to enable substantial improvements in outcomes. The disease varies globally and plans will need to differ for individual countries or places where region-specific barriers prevent optimal care. A wide selection of educational activities is needed, including community-targeted initiatives, to engage with families. The Paediatric Asthma Project Plan has been initiated to strengthen diagnosis and management of asthma. This encompasses a vision for the next 10–15 years, building on the knowledge and experience from previous educational projects. It will take into account the educational needs of patients, carers and healthcare professionals as well as the accessibility and affordability of medication, particularly in low and middle-income countries where the prevalence of asthma is rising more rapidly. This overview presents a first step for those involved in the diagnosis and management of childhood asthma to strengthen care for children globally.
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Affiliation(s)
- Warren Lenney
- Department of Child Health, Keele University, Stoke-on-Trent, UK
- Department of Child Health, Royal Stoke University Hospital (RSUH), Stoke-on-Trent, UK
- Global Respiratory Franchise, GlaxoSmithKline, Brentford, London, UK
| | - Andrew Bush
- Paediatrics, Imperial College London, London, UK
- Paediatrics, National Heart and Lung Institute, London, UK
- Paediatrics, Royal Brompton & Harefield NHS Foundation Trust, London, UK
| | - Dominic A Fitzgerald
- Sydney Medical School, Discipline of Child and Adolescent Health, University of Sydney, Sydney, New South Wales, Australia
- Department of Respiratory Medicine, The Children’s Hospital at Westmead, Sydney, New South Wales, Australia
| | - Monica Fletcher
- Global Respiratory Franchise, GlaxoSmithKline, Brentford, London, UK
- Asthma UK Centre for Applied Research (AUKCAR), University of Edinburgh, Edinburgh, UK
| | | | - Soren Pedersen
- Pediatric Research Unit, Kolding Hospital, University of Southern Denmark, Kolding, Denmark
| | - Stanley J Szefler
- Pediatric Asthma Research Program, Section of Pediatric Pulmonary Medicine, Breathing Institute, Children’s Hospital Colorado, Aurora, Colorado, USA
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Heather J Zar
- Department of Paediatrics and Child Health, Red Cross War Memorial Children’s Hospital, Cape Town, South Africa
- MRC Unit on Child & Adolescent Health, University of Cape Town, Cape Town, South Africa
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Hamelmann E. Long-acting muscarinic antagonists for the treatment of asthma in children-a new kid in town. ALLERGO JOURNAL INTERNATIONAL 2018; 27:220-227. [PMID: 30416934 PMCID: PMC6208794 DOI: 10.1007/s40629-018-0066-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/28/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND Asthma is the most prevalent chronic airway disease observed in children and adolescents, yet the variety of treatment options available for this age group is limited. With many factors influencing therapeutic efficacy including patient knowledge, adherence, and therapy choice as well as delivery device, it is important to have more options to tailor to individual patient needs. METHODS This article is an overview of recent scientific articles using a systematic literature search in PubMed and specialist databases. RESULTS Tiotropium is the first long-acting muscarinic antagonist to be licensed for treatment of asthma and has been demonstrated to be an effective add-on therapy across all age groups. Its therapeutic success in clinical trials resulted in Food and Drug Administration and the European Medicines Agency approval for asthma treatment in people over the age of 6 years in the US and EU. CONCLUSION Further studies into the use of tiotropium, especially in younger children, could be of interest for future treatment decisions.
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Affiliation(s)
- Eckard Hamelmann
- Kinderzentrum Bethel, Evangelisches Klinikum Bethel, Grenzweg 10, 33617 Bielefeld, Germany
- Allergy Center of the Ruhr University, Bochum, Germany
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Different cutoff values of methacholine bronchial provocation test depending on age in children with asthma. World J Pediatr 2017; 13:439-445. [PMID: 28276002 DOI: 10.1007/s12519-017-0026-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 03/30/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Bronchial hyperresponsiveness (BHR) is a fundamental pathophysiological characteristic of asthma. Although several factors such as airway caliber can affect BHR, no study has established age-dependent cutoff values of BHR to methacholine for the diagnosis of asthma in children. We investigated the cutoff values of the methacholine challenge test (MCT) in the diagnosis of asthma according to age. METHODS A total of 2383 individuals aged from 6 to 15 years old were included in this study. MCTs using the five-breath technique were performed in 350 children with suspected asthma based on symptoms by pediatric allergists and in 2033 healthy children from a general population-based cohort. We determined the provocative concentration of methacholine producing a 20% decrease in forced expiratory volume in 1 second from baseline (PC20). A modified Korean version of the International Study of Asthma and Allergies in Childhood questionnaire was used to distinguish asthmatics and healthy subjects. Receiver-operator characteristic curve analysis was used to assess the cutoff value of PC20 for the diagnosis of asthma. RESULTS Cutoff values of methacholine PC20, which provided the best combination of diagnostic sensitivity and specificity, showed an increasing pattern with age: 5.8, 9.1, 11.8, 12.6, 14.9, 21.7, 23.3, 21.1, 21.1, and 24.6 mg/mL at ages 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 years, respectively. CONCLUSION The application of different cutoff values of methacholine PC20 depending on age might be a practical modification for the diagnosis of asthma in children and adolescents with asthmatic symptoms.
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Lo PC, Tsai YT, Lin SK, Lai JN. Risk of asthma exacerbation associated with nonsteroidal anti-inflammatory drugs in childhood asthma: A nationwide population-based cohort study in Taiwan. Medicine (Baltimore) 2016; 95:e5109. [PMID: 27741128 PMCID: PMC5072955 DOI: 10.1097/md.0000000000005109] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Patients allergic to aspirin or nonsteroidal anti-inflammatory drugs (NSAIDs) who develop respiratory reactions such as bronchospasm or asthma exacerbation have aspirin-induced asthma or NSAIDs-exacerbated respiratory disease. However, large-scale studies have not been conducted to investigate the risk of aspirin/NSAIDs exposure in children with asthma. Therefore, this study evaluated the relationship between aspirin/NSAIDs and the risk of asthma exacerbation in children with asthma.This retrospective cohort study was conducted using the data of 1 million random beneficiaries of the Taiwan National Health Insurance program between 1997 and 2012. Children aged ≦18 years diagnosed with asthma by physicians were enrolled. The study population was divided into the index group (concurrently using antiasthmatic agents and NSAIDs patients) and reference group (using antiasthmatic drugs alone), and the relative risks (RRs) of hospitalizations resulting from asthma exacerbation in both groups were estimated.The rate of asthma exacerbation was higher in the index group than the reference group, resulting in asthma-related hospitalizations (RR: 1.49, 95% confidence interval [CI]: 1.37-1.61; adjusted RR: 1.41, 95% CI: 1.30-1.53). Short-term aspirin, ibuprofen, and diclofenac use probably correlated with asthma exacerbation in children with asthma. No association between long-term aspirin, ibuprofen, and diclofenac consumption and the risk of asthma exacerbation was identified in this study.
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Affiliation(s)
- Pei-Chia Lo
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University
| | - Yueh-Ting Tsai
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University
| | - Shun-Ku Lin
- Department of Chinese Medicine, Taipei City Hospital, Renai Branch, Taipei
| | - Jung-Nien Lai
- Institute of Traditional Medicine, School of Medicine, National Yang-Ming University
- School of Chinese Medicine, College of Chinese Medicine, China Medical University
- Department of Chinese Medicine, China Medical University Hospital, Taichung, Taiwan
- Correspondence: Jung-Nien Lai, School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan, No. 91, Hsueh-Shih Road, Taichung 40402, Taiwan (e-mail: )
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