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Peer A, Samuelson DR. The Role of the Microbiome in Allergy, Asthma, and Occupational Lung Disease. Curr Allergy Asthma Rep 2024; 24:415-423. [PMID: 38904934 PMCID: PMC11297072 DOI: 10.1007/s11882-024-01156-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2024] [Indexed: 06/22/2024]
Abstract
PURPOSE OF REVIEW The human commensal microbiota is now widely accepted as a key regulator of human health and disease. The composition of the mucosal associated microbiota has been shown to play a critical role in the lung health. The role of the mucosal microbiota in the development and severity of allergy, asthma, and occupational lung disease is only beginning to take shape. However, advances in our understanding of these links have tremendous potential to led to new clinical interventions to reduce allergy, asthma, and occupational lung disease morbidity. RECENT FINDINGS We review recent work describing the relationship and role of the commensal microbiota in the development of allergy, asthma, and occupational lung disease. Our review primarily focuses on occupational exposures and the effects of the microbiome, both in composition and function. Data generated from these studies may lead to the development of interventions targeted at establishing and maintaining a healthy microbiota. We also highlight the role of environmental exposures and the effects on the commensal microbial community and their potential association with occupational lung disease. This review explores the current research describing the role of the human microbiome in the regulation of pulmonary health and disease, with a specific focus on the role of the mucosal microbiota in the development of allergy, asthma, and occupational lung disease.
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Affiliation(s)
- Ashley Peer
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep, University of Nebraska Medical Center, Omaha, NE, USA
| | - Derrick R Samuelson
- Department of Internal Medicine, Division of Pulmonary, Critical Care, and Sleep, University of Nebraska Medical Center, Omaha, NE, USA.
- Nebraska Food for Health Center, University of Nebraska-Lincoln, Lincoln, NE, USA.
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Sharma A, Deshmukh P, Jain S, Gaurkar S, Sharma A. Unraveling the Molecular Threads: A Comprehensive Review of the Pathogenesis and Therapeutic Insights Into Allergic Rhinitis. Cureus 2024; 16:e64410. [PMID: 39131035 PMCID: PMC11317112 DOI: 10.7759/cureus.64410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Accepted: 07/12/2024] [Indexed: 08/13/2024] Open
Abstract
Allergic rhinitis (AR) is a prevalent inflammatory disorder of the nasal mucosa, triggered by allergen exposure and characterized by symptoms such as sneezing, nasal congestion, itching, and rhinorrhea. This comprehensive review aims to unravel the molecular mechanisms underpinning AR, exploring the pathogenesis from allergen recognition to chronic inflammation and tissue remodelling. Central to the disease are immunoglobulin E (IgE)-mediated hypersensitivity reactions, involving key inflammatory mediators and cellular players such as mast cells, eosinophils, and T cells. Genetic predisposition and environmental factors also play significant roles in susceptibility and disease progression. Therapeutic strategies for AR are varied, ranging from symptomatic relief through antihistamines and nasal corticosteroids to more targeted approaches like allergen-specific immunotherapy. Emerging treatments focus on novel molecular pathways, with a growing emphasis on personalized medicine to optimize patient outcomes. Despite advancements, challenges remain in fully understanding the heterogeneity of AR and developing universally effective treatments. This review synthesizes current knowledge, highlighting critical insights into the molecular basis of AR and their implications for clinical practice. It underscores the need for integrated, multidisciplinary approaches to enhance therapeutic efficacy and calls for ongoing research to address unresolved questions and explore new frontiers in AR management. Through this comprehensive synthesis, the review aims to inform and inspire future research and clinical strategies, ultimately improving the quality of life for individuals affected by AR.
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Affiliation(s)
- Abhijeet Sharma
- Otorhinolaryngology and Head and Neck Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Prasad Deshmukh
- Otorhinolaryngology and Head and Neck Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Shraddha Jain
- Otorhinolaryngology and Head and Neck Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sagar Gaurkar
- Otorhinolaryngology and Head and Neck Surgery, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Ayushi Sharma
- Dental Sciences, People's College of Dental Science and Research Centre, Bhopal, IND
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Li L, Huang F, Zhang YH, Cai YD. Identifying allergic-rhinitis-associated genes with random-walk-based method in PPI network. Comput Biol Med 2024; 175:108495. [PMID: 38697003 DOI: 10.1016/j.compbiomed.2024.108495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/21/2024] [Accepted: 04/21/2024] [Indexed: 05/04/2024]
Abstract
Allergic rhinitis is a common allergic disease with a complex pathogenesis and many unresolved issues. Studies have shown that the incidence of allergic rhinitis is closely related to genetic factors, and research on the related genes could help further understand its pathogenesis and develop new treatment methods. In this study, 446 allergic rhinitis-related genes were obtained on the basis of the DisGeNET database. The protein-protein interaction network was searched using the random-walk-with-restart algorithm with these 446 genes as seed nodes to assess the linkages between other genes and allergic rhinitis. Then, this result was further examined by three screening tests, including permutation, interaction, and enrichment tests, which aimed to pick up genes that have strong and special associations with allergic rhinitis. 52 novel genes were finally obtained. The functional enrichment test confirmed their relationships to the biological processes and pathways related to allergic rhinitis. Furthermore, some genes were extensively analyzed to uncover their special or latent associations to allergic rhinitis, including IRAK2 and MAPK, which are involved in the pathogenesis of allergic rhinitis and the inhibition of allergic inflammation via the p38-MAPK pathway, respectively. The new found genes may help the following investigations for understanding the underlying molecular mechanisms of allergic rhinitis and developing effective treatments.
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Affiliation(s)
- Lin Li
- Department of Otolaryngology and Head&neck, The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi Medical Center, Nanjing Medical University, Wuxi, 214023, China; Department of Otolaryngology and Head&neck, China-Japan Union Hospital, Jilin University, Changchun, 130033, China.
| | - FeiMing Huang
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
| | - Yu-Hang Zhang
- Channing Division of Network Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA.
| | - Yu-Dong Cai
- School of Life Sciences, Shanghai University, Shanghai, 200444, China.
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Zheng X, Chen M, Zhuang Y, Xu J, Zhao L, Qian Y, Shen W. Genetic associations between gut microbiota and allergic rhinitis: an LDSC and MR analysis. Front Microbiol 2024; 15:1395340. [PMID: 38855765 PMCID: PMC11157438 DOI: 10.3389/fmicb.2024.1395340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/26/2024] [Indexed: 06/11/2024] Open
Abstract
Background Several studies have suggested a potential link between allergic rhinitis (AR) and gut microbiota. In response, we conducted a meta-analysis of Linkage Disequilibrium Score Regression (LDSC) and Mendelian randomization (MR) to detect their genetic associations. Methods Summary statistics for 211 gut microbiota taxa were gathered from the MiBioGen study, while data for AR were sourced from the Pan-UKB, the FinnGen, and the Genetic Epidemiology Research on Aging (GERA). The genetic correlation between gut microbiota and AR was assessed using LDSC. The principal estimate of causality was determined using the Inverse-Variance Weighted (IVW) method. To assess the robustness of these findings, sensitivity analyses were conducted employing methods such as the weighted median, MR-Egger, and MR-PRESSO. The summary effect estimates of LDSC, forward MR and reverse MR were combined using meta-analysis for AR from different data resources. Results Our study indicated a significant genetic correlation between genus Sellimonas (Rg = -0.64, p = 3.64 × 10-5, Adjust_P = 3.64 × 10-5) and AR, and a suggestive genetic correlation between seven bacterial taxa and AR. Moreover, the forward MR analysis identified genus Gordonibacter, genus Coprococcus2, genus LachnospiraceaeUCG010, genus Methanobrevibacter, and family Victivallaceae as being suggestively associated with an increased risk of AR. The reverse MR analysis indicated that AR was suggestively linked to an increased risk for genus Coprococcus2 and genus RuminococcaceaeUCG011. Conclusion Our findings indicate a causal relationship between specific gut microbiomes and AR. This enhances our understanding of the gut microbiota's contribution to the pathophysiology of AR and lays the groundwork for innovative approaches and theoretical models for future prevention and treatment strategies in this patient population.
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Affiliation(s)
| | | | | | | | | | | | - WenMing Shen
- Emergency Department, Wujin People’s Hospital Affiliated with Jiangsu University and Wujin Clinical College of Xuzhou Medical University, Changzhou, Jiangsu, China
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Gohal G, Yassin A, Darraj H, Darraj A, Maghrabi R, Abutalib YB, Talebi S, Mutaen AA, Hamdi S. Prevalence and Risk Factors of Childhood Asthma in Jazan Region, Saudi Arabia. J Asthma Allergy 2024; 17:33-43. [PMID: 38268533 PMCID: PMC10807271 DOI: 10.2147/jaa.s443759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2023] [Accepted: 01/15/2024] [Indexed: 01/26/2024] Open
Abstract
Background The prevalence of asthma among children has been on the rise worldwide, leading to significant morbidity and mortality. Our study was conducted to determine the prevalence of asthma and its related risk factors among school-age children in the Jazan Region, Saudi Arabia. Materials and Method The study was a cross-sectional prospective study that used Phase I ISAAC protocol and was conducted from March to June 2023. The sample size was calculated to be 1600 among school-age children in the Jazan Region Saudi Arabia. This study complies with the Declaration of Helsinki. Data was analyzed using SPSS version 23.0, Descriptive statistics were calculated for study variables, and appropriate tests of significance were performed to determine statistical significance. Results The total study population was 1368 the majority of them, 96.6% (n=1321), were Saudi nationals, and most of them lived in rural areas (70.6%, n=966). The prevalence of life-long wheezing, wheezing in the last 12 months, and exercise-induced wheezing was 28.0%, 29.2%, and 30.9%, respectively. Risk factors such as having indoor plants, having a pet, and a smoker in the household were reported by 48.0%, 24.6%, and 36.4% of participants, respectively. Living near an industrial area was determined as a risk factor in 98 (7.2%) of the children. Asthma-related symptoms were strongly correlated with all risk factors based on the chi-square test, and some risk factors based on multivariate linear regression. Conclusion The prevalence of asthma among children in the Jazan Region is higher than previously reported, and the reported risk factors are significantly correlated with symptoms of asthma.
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Affiliation(s)
- Gassem Gohal
- Department of Pediatrics, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Abuobaida Yassin
- Department of Internal Medicine, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Hussam Darraj
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Anwar Darraj
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | - Rawan Maghrabi
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | | | - Sarah Talebi
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
| | | | - Sulaiman Hamdi
- Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
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Kawabata A, Motoyama Y, Takeuchi J, Kusunoki T. Swimming was associated with rhinitis and pollinosis in a duration-dependent manner. Pediatr Int 2024; 66:e15758. [PMID: 38780222 DOI: 10.1111/ped.15758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 12/20/2023] [Accepted: 02/02/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Previous studies have reported conflicting results regarding the effects of childhood swimming on respiratory allergic symptoms. We investigated the relationship between swimming and respiratory allergic symptoms in schoolchildren. METHODS A questionnaire regarding participation in sports club activities and respiratory allergic symptoms in schoolchildren was distributed to the parents of all 6853 public school students (aged 6-14 years) in Omihachiman City, Shiga, Japan. The relationships between participation in sports club activities and the prevalence of respiratory allergic symptoms were analyzed by multivariable logistic regression analyses. RESULTS Questionnaires were returned for 4991 schoolchildren (response rate: 72.8%). Logistic regression analysis revealed significant positive associations between swimming and rhinitis (42.9% vs. 38.9%; adjusted odds ratio, 1.26; 95% confidence interval, 1.10-1.44), and swimming and pollinosis (32.1% vs. 28.1%; adjusted odds ratio, 1.28; 95% confidence interval, 1.11-1.47). The duration of participation in swimming activities was also significantly positively associated with the prevalence of rhinitis and pollinosis. Those who had participated in swimming activities for 6 years or more showed significantly higher prevalences of rhinitis and pollinosis (46.3% and 36.4%, respectively) than those without swimming activities (38.9% and 28.1%, respectively) and those who had participated in swimming activities for 5 years or less (40.1% and 28.5%, respectively). CONCLUSIONS Swimming was associated with the prevalence of rhinitis and pollinosis in schoolchildren, especially among those who had participated in swimming activities for 6 years or more. Preventive measures and early interventions for rhinitis and pollinosis should be recommended to these children.
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Affiliation(s)
- Ayu Kawabata
- Laboratory of Child Health and Nutrition, Department of Food Science and Human Nutrition, Faculty of Agriculture, Ryukoku University, Shiga, Japan
| | - Yuie Motoyama
- Laboratory of Child Health and Nutrition, Department of Food Science and Human Nutrition, Faculty of Agriculture, Ryukoku University, Shiga, Japan
| | - Jiro Takeuchi
- Department of Clinical Epidemiology, Hyogo College of Medicine, Hyogo, Japan
| | - Takashi Kusunoki
- Laboratory of Child Health and Nutrition, Department of Food Science and Human Nutrition, Faculty of Agriculture, Ryukoku University, Shiga, Japan
- Department of Pediatrics, Shiga Medical Center for Children, Shiga, Japan
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Gan H, Huang Z, Zhu H, Li A, Chen T, Yin Z, Sun B. Study of Allergy and Sensitization Relationship in Children and Parents in Southern China. Int Arch Allergy Immunol 2023; 185:142-151. [PMID: 37926086 DOI: 10.1159/000533896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Accepted: 08/29/2023] [Indexed: 11/07/2023] Open
Abstract
INTRODUCTION The incidence of allergic diseases has increased globally, with genetics playing an essential role in these conditions' development. However, there is still a gap in understanding of how parental allergy status affects children's allergies. METHODS An electronic questionnaire was used to assess allergy-related symptoms in kindergarten children and their parents, with a clinical diagnosis and concurrent serum allergen-specific immunoglobulin E (IgE), total IgE, and blood cell counts obtained. RESULTS 88 family groups were enrolled, with allergy prevalence of 85.2% in children, 50% in fathers, and 42% in mothers. Allergic rhinoconjunctivitis was the most common allergic disease. When the mother had an allergy, the children's allergy diagnosis rate was 91.3%; 86.67% when the father had an allergy; and 85.71% when both parents had allergies. The child sensitization rate was 78.26% when the father had sensitization, 59.09% just as the mother had sensitization, and 84.21% when both parents had sensitization. Paternal allergies affected children's quality of life due to allergic rhinitis but not their rhinitis symptoms. Maternal allergies or sensitization did not significantly affect children's symptoms or quality-of-life scores. CONCLUSION The study found a positive correlation between childhood and parental allergies, and further studies are needed to confirm the findings.
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Affiliation(s)
- Hui Gan
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China,
| | - Zhifeng Huang
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Huiqing Zhu
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Aoli Li
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Tong Chen
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Ziyu Yin
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Baoqing Sun
- Department of Clinical Laboratory, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, Guangzhou, China
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Lisik D, Ermis SSÖ, Ioannidou A, Milani GP, Nyassi S, Spolidoro GCI, Kankaanranta H, Goksör E, Wennergren G, Nwaru BI. Siblings and risk of allergic rhinitis: A systematic review and meta-analysis. Pediatr Allergy Immunol 2023; 34:e13991. [PMID: 37492922 DOI: 10.1111/pai.13991] [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: 05/10/2023] [Revised: 06/19/2023] [Accepted: 06/22/2023] [Indexed: 07/27/2023]
Abstract
Following the "hygiene hypothesis" and the increase in the prevalence of atopic diseases such as allergic rhinitis, a plethora of studies have investigated the role of sibship composition as a protective factor, but findings are conflicting. The aim of this study was to synthesize the global literature linking birth order and sibship size (number of siblings) to the risk of allergic rhinitis. Fifteen databases were systematically searched, with no restrictions on publication date or language. Observational studies with defined sibship composition (birth order or sibship size) as exposure and allergic rhinitis or allergic rhinoconjunctivitis (self-reported or clinically diagnosed) as outcome were eligible. Study selection, data extraction, and quality assessment were performed independently in pairs. Relevant data were summarized in tables. Comparable numerical data were analyzed using meta-analysis with robust variance estimation (RVE). Seventy-six reports with >2 million subjects were identified. Being second- or later-born child was associated with protection against both current (pooled risk ratio [RR] 0.79, 95% CI 0.73-0.86) and ever (RR 0.77, 95% CI 0.68-0.88) allergic rhinitis. Having siblings, regardless of birth order, was associated with a decreased risk of current allergic rhinitis (RR 0.89, 95% CI 0.83-0.95) and allergic rhinoconjunctivitis (RR 0.92, 95% CI 0.86-0.98). These effects were unchanged across age, time period, and geographical regions. Our findings thus indicate that primarily, a higher birth order, and to a lesser extent the number of siblings, is associated with a lower risk of developing allergic rhinitis.
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Affiliation(s)
- Daniil Lisik
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Saliha Selin Özuygur Ermis
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Respiratory Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Athina Ioannidou
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Gregorio Paolo Milani
- Department of Clinical Science and Community Health, University of Milan, Milan, Italy
- Pediatric Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Sungkutu Nyassi
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
| | | | - Hannu Kankaanranta
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Tampere University Respiratory Research Group, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Emma Goksör
- Department of Pediatrics, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Göran Wennergren
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Department of Pediatrics, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Bright Ibeabughichi Nwaru
- Krefting Research Centre, Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
- Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
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Lim JJ, Reginald K, Say YH, Liu MH, Chew FT. A Dietary Pattern for High Estimated Total Fat Amount Is Associated with Enhanced Allergy Sensitization and Atopic Diseases among Singapore/Malaysia Young Chinese Adults. Int Arch Allergy Immunol 2023; 184:975-984. [PMID: 37393903 DOI: 10.1159/000530948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 04/28/2023] [Indexed: 07/04/2023] Open
Abstract
INTRODUCTION Frequent dietary patterns for fast food diets are suggested to be a risk factor for atopic disease development. Excessive dietary fats in fast foods are postulated to promote low-grade chronic inflammation. However, no studies in Asia have yet to characterize the dietary pattern for high-fat foods with atopic diseases. Thus, this study aims to assess the association between dietary fats with the prevalence of atopic diseases in an allergic cohort. METHODS Through an investigator-administered questionnaire that follows the International Study of Asthma and Allergies in Childhood (ISAAC) protocol, we evaluated the eating habits, lifestyle behaviours, sociodemographics, and atopic symptoms, and history among 11,494 young Chinese adults in Singapore and Malaysia. A skin prick test (SPT) for common house dust mites was also conducted to determine the atopic (allergic) status. We identified 1,550 atopic dermatitis (AD), 1,301 allergic asthma (AS), and 3,757 allergic rhinitis (AR) atopic cases. We derived a novel dietary index, Diet Quality based on Total Fat Amount (DQTFA), to examine the association between eating patterns for estimated total fat amount with various atopic outcomes. RESULTS There was a preponderance of subjects having positive SPT reaction (69.0%) with the prevalence of AR being the highest (32.7%), then AD (13.5%), and AS (11.3%). Additionally, there is a significantly higher proportion of subjects with an atopy background and atopic diseases consume diets with a high estimated mean fat amount. The adherence to a dietary pattern of the higher estimated total fat amount was shown to be strongly associated with all atopic diseases and exhibited dose-dependent responses in the univariate analysis. These associations remained significant even with the adjustments for age, gender, body mass index, use of alcohol, sedentary lifestyles, and physical activity. A dietary pattern for high-fat amount is more strongly associated with AS (adjusted odds ratio [AOR]: 1.524; 95% confidence interval [CI]: 1.216-1.725; p < 0.001) and AR (AOR: 1.294; 95% CI: 1.107-1.512; p < 0.001) compared to AD (AOR: 1.278; 95% CI: 1.049-1.559; p < 0.05). Finally, it was shown that having either one of the atopic comorbidities was strongly associated with a dietary pattern of high-fat amounts (AOR: 1.360; 95% CI: 1.161-1.594; p < 0.001). CONCLUSION Our findings altogether provide initial evidence that the dietary pattern of a diet high in fat amount is associated with an increased risk of atopy and atopic diseases in young Chinese adults in Singapore and Malaysia. Balancing the consumption of dietary fats and changing personal dietary habits by choosing foods of the lower fat amount may reduce the associated odds of atopic diseases.
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Affiliation(s)
- Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore,
| | - Kavita Reginald
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
| | - Yee-How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, Petaling Jaya, Malaysia
- Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), Kampar, Malaysia
| | - Mei Hui Liu
- Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore, Singapore
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Ju F, Zhu R. Association of vitamin D levels and VDR variant (rs2228570) with allergic rhinitis: A meta-analysis and trial sequential analysis. Heliyon 2023; 9:e17283. [PMID: 37426797 PMCID: PMC10329122 DOI: 10.1016/j.heliyon.2023.e17283] [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: 02/22/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 07/11/2023] Open
Abstract
Background Allergic rhinitis (AR) is a most common allergic condition characterised by cough, sneezing and flu-like symptoms. The aetiology of AR is not known. A deficiency of vitamin D has been associated with various allergic diseases. The role of vitamin D in allergic rhinitis has been explored in different populations, but the results remained inconsistent. Furthermore, vitamin D exerts its effect through the vitamin D receptor (VDR), and genetic variations in the VDR gene significantly alter vitamin D. We performed a meta-analysis to investigate the role of vitamin D levels and VDR polymorphisms with a predisposition to the development of AR. Materials and methods All published articles were searched using databases such as PubMed, Google Scholar, and Science Direct. Based on rigorous inclusion and exclusion, appropriate studies were identified. Vitamin D levels, VDR genotype and allele frequencies were extracted from the eligible reports. The meta-analysis was performed by comprehensive meta-analysis software v3.3. Results The present meta-analysis comprised 14 reports with 1504 AR patients and 1435 healthy controls. Compared to healthy controls, AR had significantly lower levels of vitamin D (P = 0.000, standard difference of means = -1.287, 95% CI = -1.921 to -0.652). The meta-analysis of two separate investigations, which included 917 cases and 847 controls, showed no predisposition to allergic rhinitis. The trial sequential analysis also demonstrated the need for future case-control studies of VDR polymorphism to examine their involvement in AR. Conclusions Lower vitamin D levels are associated with allergic rhinitis, and vitamin D supplementation might be advantageous in addition to standard treatment. The connection of VDR polymorphism (rs2228570) remained equivocal, and additional research is needed. Summary Vitamin D exerct its beneficial effect through the vitamin D receptor (VDR) and role of vitamin D and VDR variant in the allergic rhinitis has been contradictories. We performed a meta-analysis to draw a definitive conclusion of importance of vitamin D and VDR polymorphisms in predisposition to development of allergic rhinitis. The observations of the meta-analysis revealed a significant association of lower vitamin D with allergic rhinitis. In addition the VDR rs2228570 variant predisposed subject to develop rhinitis. Collectively, the results of the present investigation redirect requirement of individualized vitamin D supplementation in the management of allergic rhinitis.
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Fu X, Du B, Meng Y, Li Y, Zhu X, Ou Z, Zhang M, Wen H, Ma'pol A, Hashim JH, Hashim Z, Wieslander G, Chen Q, Jiang J, Wang J, Norbäck D, Xia Y, Chen Q, Sun Y. Associations between environmental characteristics, high-resolution indoor microbiome, metabolome and allergic and non-allergic rhinitis symptoms for junior high school students. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:791-804. [PMID: 36883483 DOI: 10.1039/d2em00480a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Rhinitis is one of the most prevalent chronic diseases globally. Microbiome exposure affects the occurrence of rhinitis. However, previous studies did not differentiate allergic rhinitis (AR) and non-allergic rhinitis (NAR) in the microbial association analysis. In this study, we investigate 347 students in 8 junior high schools, Terengganu, Malaysia, who were categorized as healthy (70.9%), AR (13.8%) and NAR (15.3%) based on a self-administered questionnaire and skin prick tests of pollen, pet, mould and house dust mite allergens. Classroom microbial and metabolite exposure in vacuumed dust was characterized by PacBio long-read amplicon sequencing, quantitative PCR and LC-MS-based untargeted metabolomics. Our findings indicate a similar microbial association pattern between AR and NAR. The richness in Gammaproteobacteria was negatively associated with AR and NAR symptoms, whereas total fungal richness was positively associated with AR and NAR symptoms (p < 0.05). Brasilonema bromeliae and Aeromonas enteropelogenes were negatively associated with AR and NAR, and Deinococcus was positively associated with AR and NAR (p < 0.01). Pipecolic acid was protectively associated with AR and NAR symptoms (OR = 0.06 and 0.13, p = 0.009 and 0.045). A neural network analysis showed that B. bromeliae was co-occurring with pipecolic acid, suggesting that the protective role of this species may be mediated by releasing pipecolic acid. Indoor relative humidity and the weight of vacuum dust were associated with AR and NAR, respectively (p < 0.05), but the health effects were mediated by two protective bacterial species, Aliinostoc morphoplasticum and Ilumatobacter fluminis. Overall, our study reported a similar microbial association pattern between AR and NAR and also revealed the complex interactions between microbial species, environmental characteristics, and rhinitis symptoms.
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Affiliation(s)
- Xi Fu
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| | - Bingqian Du
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| | - Yi Meng
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Yanling Li
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Xunhua Zhu
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Zheyuan Ou
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Mei Zhang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Huarong Wen
- Baling Health Center, Dangyang, Hubei, 444100, PR China
| | - Aminnuddin Ma'pol
- Gombak District Health Office, Ministry of Health, Batu Caves, Selangor Darul Ehsan, Malaysia
| | | | - Zailina Hashim
- Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM, Serdang, Selangor, Malaysia
| | - Gunilla Wieslander
- Occupational and Environmental Medicine, Department of Medical Science, University Hospital, Uppsala University, 75237 Uppsala, Sweden
| | - Qingmei Chen
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Jun Jiang
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
| | - Juan Wang
- Occupational and Environmental Medicine, Department of Medical Science, University Hospital, Uppsala University, 75237 Uppsala, Sweden
| | - Dan Norbäck
- Occupational and Environmental Medicine, Department of Medical Science, University Hospital, Uppsala University, 75237 Uppsala, Sweden
| | - Yun Xia
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| | - Qingsong Chen
- Guangdong Provincial Engineering Research Center of Public Health Detection and Assessment, School of Public Health, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China.
| | - Yu Sun
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, College of Life Sciences, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China.
- Key Laboratory of Zoonosis of Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou, Guangdong, 510642, PR China
- Guangdong Laboratory for Lingnan Modern Agriculture, South China Agricultural University, Guangzhou, Guangdong, 510642, China
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Siegel J, Gill N, Ramanathan M, Patadia M. Unified Airway Disease. Otolaryngol Clin North Am 2023; 56:39-53. [DOI: 10.1016/j.otc.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Aburiziza A, Almatrafi MA, Alonazi AS, Zatari MH, Alqouzi SA, Mandili RA, Hawsawi WT, Aljohani RH. The Prevalence, Clinical Picture, and Triggers of Allergic Rhinitis in Saudi Population: A Systematic Review and Meta-Analysis. J Asthma Allergy 2022; 15:1831-1849. [PMID: 36582219 PMCID: PMC9793734 DOI: 10.2147/jaa.s391142] [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: 09/24/2022] [Accepted: 11/25/2022] [Indexed: 12/24/2022] Open
Abstract
Objective To summarize the current evidence regarding the prevalence of Allergic rhinitis (AR) and its symptoms, triggers, and impact on the quality of life of the Saudi population. Methods A Computerized Search in MEDLINE via PubMed, MEDLINE Core database, Scopus, and Web of Science was conducted using relevant keywords. A two-stage screening process, data extraction, and quality assessment were conducted by four independent reviewers. Comprehensive Meta-analysis was used for all statistical analyses (CMA; USA: version 3.3.070). Results Sixteen articles (n= 31,990 patients) were included. The overall estimated prevalence of AR was 21.2%, 95% CI (12.8-33.1%). Males had a higher prevalence of AR than females (31.7% vs 27.1%), although the difference was not significant (OR=1.24, 95% CI: 0.78-1.953; p=0.356). Children and adolescents exhibited a lower prevalence of AR than adults (13.7% vs 31.1%). Urban AR prevalence was much greater than rural (38.4% vs 13.0%). Asthma, atopic dermatitis, and eczema are all associated with AR. The most common signs and symptoms of AR were headache 33.9%, watery discharge 28.6%, sneezing 24.6%, itchy nose, runny nose 22.2%, nasal obstruction or congestion 22.0%, loss of smell 21.9%, and wheezing 17.2%. The most prevalent triggers of AR were perfume 36.8%, dust 27.3%, air conditioning 23.4%, weather or temperature changes 17.8%, air pollution 14.5%, drugs or chemicals 13.8%, tobacco 10.8%, atopy 10.3%, and insects 10.2%. Conclusion The overall prevalence of AR in Saudi Arabia is 21.2%. The prevalence of AR was comparable in both males and females. However, it was higher in adults than in children and adolescents, and in urban areas than rural areas. Asthma, atopic dermatitis, and eczema co-occurrence with AR are common. AR has a negative impact on the quality of life of the patients in the form of interference with daily activities, sleep problems, difficulty of breath, and school absenteeism.
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Affiliation(s)
- Abdullah Aburiziza
- Department of Pediatrics, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia,Correspondence: Abdullah Aburiziza, Department of Pediatrics, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia, Email
| | - Mohammed A Almatrafi
- Department of Pediatrics, College of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
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14
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Wong QYA, Lim JJ, Ng JY, Malipeddi P, Teo WY, Lim YYE, Ng YT, Sio YY, Matta SA, Wong YR, Teh KF, Rawanan Shah SM, Reginald K, Say YH, Chew FT. Allergic rhinitis in Chinese young adults from the Singapore/Malaysia cross-sectional genetics epidemiology study (SMCGES) cohort: Prevalence, patterns, and epidemiology of allergic rhinitis. World Allergy Organ J 2022; 15:100704. [PMID: 36267097 PMCID: PMC9554817 DOI: 10.1016/j.waojou.2022.100704] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 08/01/2022] [Accepted: 09/02/2022] [Indexed: 11/29/2022] Open
Abstract
Background Allergic rhinitis (AR) is characterized by the occurrence of at least 2 symptoms of nasal itching, nasal blockage, rhinorrhea, and sneezing, when not afflicted with a cold or flu, with defined atopic sensitization demonstrated by skin prick test or specific IgE responses. Besides the detriment to standard of living and economic burden of AR, both multicentre and single-cohort studies have observed an increase in AR prevalence in Asia over time. Methods In total, 12 872 individuals, with mean age 22.1 years (SD = 4.8), were recruited from universities in Singapore and Malaysia. Each participant provided epidemiological data based on an investigator-administered questionnaire adapted from the validated International Study of Allergies and Asthma in Childhood (ISAAC) protocol, and atopy status was determined using a skin prick test (SPT) performed by qualified staff. AR was diagnosed according to Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines and a positive SPT result. Results Sensitization (determined by SPT) to either Blomia tropicalis or Dermatophagoides pteronyssinus was prevalent in 66.5% of the cohort. Current rhinitis (manifesting ≥2 rhinitis symptoms, within the past 12 months) was observed in 48.9% of our population, while AR, which included atopy status, was estimated at 39.4%. Sneezing and rhinorrhea were the most common symptoms among AR cases. AR prevalence decreased with increasing age (OR: 0.979; 95% CI: 0.969-0.989), while male gender (OR: 2.053; 95% CI: 1.839-2.294), and a parental history of allergic diseases (OR: 2.750; 95% CI: 2.284-3.316) were significant risk factors for AR. Upon adjustment for age, gender, and parental history, housing type (OR: 0.632; 95% CI: 0.543-0.736) and income level (>$6000 vs <$2000; OR: 2.461; 95% CI: 2.058-2.947) remained as significant risk factors for AR, while ever having kept a pet (OR: 1.167; 95% CI: 1.025-1.328) emerged as a risk factor. Conflicting results were obtained for indicators of sedentary lifestyle: frequent physical activity (OR: 1.394; 95% CI: 1.150-1.694) and increased duration spent using the TV/computer (OR: 1.224; 95% CI: 1.006-1.489) both increased the risk of AR. Lastly, we used the Quality of Diet based on Glycaemic Index Score (QDGIS) to assess the Glycaemic Index (GI) level of overall diet. We identified lower GI level of overall diet as a protective factor against AR manifestation (OR: 0.682; 95% CI: 0.577-0.807). Conclusion While the previously established non-modifiable risk factors for AR were present in our study population, the identification of modifiable risk factors, such as TV/computer usage, and dietary habits, opens a new area for research, both in the areas of gene-environment interaction, and management of AR.
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Affiliation(s)
- Qi Yi Ambrose Wong
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Jun Jie Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Jun Yan Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Praneeth Malipeddi
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Wei Yi Teo
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yi Ying Eliza Lim
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yu Ting Ng
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yang Yie Sio
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Sri Anusha Matta
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore
| | - Yi Ru Wong
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Keng Foo Teh
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Smyrna Moti Rawanan Shah
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Kavita Reginald
- Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia
| | - Yee How Say
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore,Department of Biological Sciences, School of Medicine and Life Sciences, Sunway University, 47500 Petaling Jaya, Selangor, Malaysia,Department of Biomedical Science, Faculty of Science, Universiti Tunku Abdul Rahman (UTAR), 31900 Kampar, Perak, Malaysia
| | - Fook Tim Chew
- Department of Biological Sciences, Faculty of Science, National University of Singapore, 117543, Singapore,Corresponding author. Department of Biological Sciences; Vice Dean, Faculty of Science Department of Biological Sciences, Faculty of Science, National University of Singapore, Allergy and Molecular Immunology Laboratory, Lee Hiok Kwee Functional Genomics Laboratories, Block S2, Level 5, 14 Science Drive 4, Lower Kent Ridge Road, 117543, Singapore
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15
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Ravindra K, Goyal A, Mor S. Pollen allergy: Developing multi-sectorial strategies for its prevention and control in lower and middle-income countries. Int J Hyg Environ Health 2022; 242:113951. [PMID: 35334435 DOI: 10.1016/j.ijheh.2022.113951] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/25/2022] [Accepted: 03/06/2022] [Indexed: 10/18/2022]
Abstract
Pollen allergy is considered a major public health problem that causes morbidity and subsequently affects a patient's quality of life. Pollen due to their large size cannot enter the thoracic regions of the respiratory tract but can affect the nasopharyngeal mucous membrane. At the same time, the submicronic-pollen particles can act as respirable particles reaching deeper into the upper airways leading to exacerbation of asthma, chronic obstructive pulmonary disease (COPD) and other allergic reactions. Based on the existing literature, expanding evidence shows that climate change and air pollutants could affect the pollen number, morphology, season, allergen content, and distribution pattern. Hence, this will influence the prevalence and occurrence of allergies linked to pollen exposure. Being a part of biogenic pollutants, pollen allergens are not expected to diminish in the foreseeable future. Therefore, it is imperative that steps need to be strengthened to improve and optimize preventive/adaptive strategies. This paper aims to review the major causes of widespread allergy, identify the major gaps, and suggest key preventive/adaptive measures to address the onset and exacerbation of pollen-related allergic diseases with a major focus on lower and middle-income countries. The study also discusses how-to implement the prevention and control measures at the individual, health care communities and organizations, Local Governments, National/International Governments levels to decrease the risk of illnesses associated with pollen allergy.
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Affiliation(s)
- Khaiwal Ravindra
- Department of Community Medicine and School of Public Health, Post Graduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India.
| | - Akshi Goyal
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India
| | - Suman Mor
- Department of Environment Studies, Panjab University, Chandigarh, 160014, India.
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16
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Ahmed S, Sami AS. Rhinosinusitis and its impact on quality of life in children. Br J Hosp Med (Lond) 2022; 83:1-11. [DOI: 10.12968/hmed.2021.0589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Rhinitis and rhinosinusitis are common conditions which have a significant burden on healthcare services and can lead to reduced productivity in patients across the entire age spectrum. Three disease-specific quality of life tools were analysed in hospital and community settings to explore prevalence, disease characteristics and financial costs to sufferers, and to compare these aspects between cohorts (young children, young adult and adults). These tools were Modified Sino-Nasal Outcome Test-20 (MSNOT-20) questionnaire for adults, MSNOT-20 Young Persons Questionnaire (MSYPQ) for 11–16-year-olds and Sami's Rhinosinusitis Diagnosis and Impact questionnaire for 5–10-year-olds. One of the top three symptoms in children aged 5–10 years was cough, which is a much less common symptom in adults. These validated, disease-specific, quality of life questionnaires provide a fuller illustration of the patient experience, allowing comprehensive comparative analysis across the ages.
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Affiliation(s)
- Sabahat Ahmed
- Department of Intensive Care Medicine, Newham University Hospital, Barts Health NHS Trust, London, UK
| | - Amtul S Sami
- Ear Nose and Throat and Allergy Department, University Hospital Lewisham, Lewisham and Greenwich NHS Trust, London, UK
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17
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Hoang MP, Samuthpongtorn J, Seresirikachorn K, Snidvongs K. Prolonged breastfeeding and protective effects against the development of allergic rhinitis: a systematic review and meta-analysis. Rhinology 2021; 60:82-91. [PMID: 34783797 DOI: 10.4193/rhin21.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND There is insufficient evidence to confirm the protective effects of prolonged breastfeeding against the development of allergic rhinitis (AR). METHODOLOGY A systematic review and meta-analysis was performed to assess the associations between prolonged breastfeeding and AR symptoms later in life. Comparisons were conducted between breastfeeding durations less than 6 months and 6 months or more and between less than 12 months and 12 months or more. Exclusive breastfeeding and nonexclusive breastfeeding were analysed separately. Outcomes were risks of AR development later in life. RESULTS Twenty-three observational studies (161,611 children, age 2-18 years, 51.50% male) were included. Two studies (9%) were with high quality. Both exclusive and nonexclusive prolonged breastfeeding (6 months or more) decreased the risk of AR. The long-term (12 months or more) nonexclusive breastfeeding lowered the likelihood of AR compared to the 12 months or fewer. The long-term exclusive breastfeeding did not show the same protective effect; however, this result was restricted to only one study. CONCLUSIONS Exclusive breastfeeding and nonexclusive breastfeeding for 6 months or more may have protective effects against the development of AR up to 18 years of age. The findings should be interpreted with caution given the limitation of low-quality observational studies.
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Affiliation(s)
- M P Hoang
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Department of Otolaryngology, Hue University of Medicine and Pharmacy, Hue University, Vietnam
| | - J Samuthpongtorn
- Department of Anatomy, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - K Seresirikachorn
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - K Snidvongs
- Department of Otolaryngology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Endoscopic Nasal and Sinus Surgery Excellent Center, King Chulalongkorn Memorial Hospital, Bangkok, Thailand
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Yang ZC, Wang LX, Yu Y, Lin HY, Shih LC. Increased Risk of Postpartum Depression in Women With Allergic Rhinitis During Pregnancy: A Population-Based Case-Control Study. Ann Otol Rhinol Laryngol 2021; 131:1137-1143. [PMID: 34779274 DOI: 10.1177/00034894211058135] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Allergic rhinitis (AR) is associated with increased risk of major depression in the general population, however, no previous study has evaluated its role among pregnant women. We aimed to investigate the potential impact of AR during pregnancy on the development of postpartum depression (PPD). METHODS This is a population-based case-control study. Data were retrieved from the National Health Insurance Research Database (NHIRD). Medical records of a total of 199 470 deliveries during 2000 and 2010 were identified. Among which, 1416 women with PPD within 12 months after delivery were classified as the case group, while 198 054 women without PPD after delivery formed the control group. Univariate and multivariate regression analyses were conducted to determine the associations between AR during pregnancies and other study variables with PPD. RESULTS AR during pregnancy was found in 9.53% women who developed PPD and 5.44% in women without PPD. After adjusting for age at delivery, income level, various pregnancy and delivery-related conditions, asthma, atopic dermatitis and other medical comorbidities in the multivariate analysis, AR was significantly associated with increased odds of PPD (aOR: 1.498, 95% CI: 1.222-1.836). CONCLUSION AR during pregnancy was independently and significantly associated with an approximately 50% increased risk of PPD among women giving birth. Closely monitoring of AR is warranted in the future in order to optimize mother and child outcomes after delivery.
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Affiliation(s)
- Zhi-Chao Yang
- Department of Otorhinolaryngology-Head and Neck Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Li-Xin Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Yang Yu
- Department of Otorhinolaryngology-Head and Neck Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, China
| | - Huan-Yu Lin
- Department of Otorhinolaryngology, China Medical University Hospital, Taichung
| | - Liang-Chun Shih
- Department of Otorhinolaryngology, China Medical University Hospital, Taichung
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19
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Glick S, Gehrig R, Eeftens M. Multi-decade changes in pollen season onset, duration, and intensity: A concern for public health? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 781:146382. [PMID: 33812098 PMCID: PMC8182784 DOI: 10.1016/j.scitotenv.2021.146382] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/15/2021] [Accepted: 03/05/2021] [Indexed: 05/11/2023]
Abstract
Longitudinal shifts in pollen onset, duration, and intensity are public health concerns for the growing number of individuals with pollen sensitization. National analyses of long-term pollen changes are influenced by how a plant's main pollen season (MPS) is defined. Prior Swiss studies have inconsistently applied MPS definitions, leading to heterogeneous conclusions regarding the magnitude, directionality, and significance of multi-decade pollen trends. We examined national pollen data in Switzerland between 1990 and 2020, applying six MPS definitions (2 percentage-based and 4 threshold-based) to twelve relevant allergenic plants. We analyzed changes in pollen season using both linear regression and locally estimated scatterplot smoothing (LOESS). For 4 of the 12 plant species, there is unanimity between definitions regarding earlier onset of pollen season (p < 0.05), with magnitude of 31-year change dependent on specific MPS definition (hazel: 9-18 days; oak: 5-13 days; grasses: 8-25 days; and nettle/hemp: 6-25 days). There is also consensus (p < 0.05) for modified MPS duration among hazel (21-104% longer), nettle/hemp (8-52% longer), and ash (18-38% shorter). Between-definition agreement is highest for MPS intensity analysis, with consensus for significant increases in seasonal pollen quantity (p < 0.05) among hazel, birch, oak, beech, and nettle/hemp. The largest relative intensification is noted for hazel (110-146%) and beech (162-237%). LOESS analysis indicates that these multi-decade pollen changes are typically nonlinear. The robustness of MPS definitions is highly dependent on annual pollen accumulation, with definition choice particularly influential for long-term analysis of low-pollen plants such as ragweed. We identify systematic differences between MPS definitions and suggest future aerobiologic studies apply multiple definitions to minimize bias. In summary, national pollen onset, duration, and intensity have shifted for some plants in Switzerland, with MPS definition choice affecting magnitude and significance of these variations. Future public health research can determine whether these temporal and quantitative pollen changes correlate with longitudinal differences in population pollen sensitization.
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Affiliation(s)
- Sarah Glick
- Department of Epidemiology and Public Health, Swiss Tropical & Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland
| | - Regula Gehrig
- Federal Office of Meteorology and Climatology MeteoSwiss, Switzerland
| | - Marloes Eeftens
- Department of Epidemiology and Public Health, Swiss Tropical & Public Health Institute, Basel, Switzerland; University of Basel, Basel, Switzerland.
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Association of interleukin-12B rs6887695 with susceptibility to allergic rhinitis. Immunol Res 2021; 69:189-195. [PMID: 33834388 DOI: 10.1007/s12026-021-09189-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/30/2021] [Indexed: 10/21/2022]
Abstract
Interleukin-12 (IL-12) is a heterodimeric cytokine encoded by two separate genes, IL12A and IL12B, which may play a regulatory role in allergen-induced inflammation through CD4+ T-cell subsets polarization. The aim of this study was to investigate the association of single-nucleotide polymorphisms (SNPs) in the IL12B gene with susceptibility to allergic rhinitis (AR). We performed a case-control study including 130 AR patients and 130 healthy controls to evaluate the possible association between IL12B gene SNPs (rs3212227, rs6887695) and the risk of AR using the polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Our results showed no significant association between IL12B rs3212227 A > C polymorphism with AR. In contrast, the GC genotype of rs6887695 G > C was associated with susceptibility to AR in comparison with the GG genotype (p = 0.049, OR = 1.684, 95% CI: 1.002-2.83). We also observed a statistically significant difference in the additive model (GC versus GG + CC, p = 0.03, OR = 1.705, 95% CI: 1.040-2.794) for SNPs rs6887695. Furthermore, haplotypes analysis demonstrated that C-C haplotype was associated with an increased risk of AR (p = 0.01, OR = 1.845, 95% CI: 1.114-3.057). Our findings suggest that IL12B rs6887695 polymorphism may be a potential biomarker for susceptibility to AR in an Iranian population.
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Nugmanova D, Feshchenko Y, Khegay Y, Iashyna L, Gyrina O, Vasylyev A, Mustafayev I, Aliyeva G, Moibenko M, Tariq L, Makarova J. The Prevalence of Allergic Rhinitis, its Triggers, and Associated Factors in Commonwealth of Independent States Countries (Ukraine, Kazakhstan, and Azerbaijan): Results of the CORE Study. DUBAI MEDICAL JOURNAL 2021. [DOI: 10.1159/000514318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
<b><i>Background:</i></b> In the Commonwealth of Independent States (CIS) countries the epidemiology of allergic rhinitis (AR) is poorly characterized. The rationale and design of the CORE (Chronic Obstructive REspiratory diseases) study have been described elsewhere. <b><i>Methods:</i></b> A total of 2,842 adults (≥18 years) were recruited (964 in Kiev, Ukraine, 945 in Almaty, Kazakhstan, and 933 in Baku, Azerbaijan) between 2013 and 2015 and interviewed during household visits. Two-step cluster randomization was used for the sampling strategy. “Doctor-diagnosed AR” was considered when the respondent had previously been diagnosed with AR by a doctor, “self-reported AR symptoms” (was defined as watery runny nose during the last 12 months alone or in combination with any of the following: sneezing, nasal obstruction, nasal itching, or conjunctivitis). <b><i>Results:</i></b> The prevalence of doctor-diagnosed AR was 33.4, 92.1, and 82.7 per 1,000 persons, and the prevalence of self-reported AR symptoms was 44.7, 97.4, and 85.7 per 1,000 persons, in Ukraine, Kazakhstan, and Azerbaijan, respectively. In Ukraine, the peak of AR symptoms was in May, in Kazakhstan – in May–September, and in Azerbaijan in March–May. Sneezing and nasal congestion were the most frequent symptoms. Pollen as AR trigger was reported by 71.9% respondents in Ukraine, 70.1% in Kazakhstan, and 68.8% in Azerbaijan. Only 35–56% respondents with doctor diagnosed AR have had specific investigations (skin test, analysis for immunoglobulin etc.). The percent of subjects with chronic (nonrespiratory) health condition was higher in the respondents with self-reported AR symptoms compared to rest of the respondent: 100 versus 42% in Ukraine, 100 versus 21% in Kazakhstan, and 100 versus 50% in Azerbaijan, respectively. <b><i>Conclusion:</i></b> In CIS countries, the prevalence of self-reported AR symptoms was slightly higher than the prevalence of doctor-diagnosed AR. Compared to countries from other continents, the prevalence of doctor-diagnosed AR was similar; however, the prevalence of AR symptoms seems to be relatively lower.
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22
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Sarabu C, Steyaert S, Shah NR. Predicting Environmental Allergies from Real World Data Through a Mobile Study Platform. J Asthma Allergy 2021; 14:259-264. [PMID: 33776455 PMCID: PMC7988037 DOI: 10.2147/jaa.s292336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/18/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Chethan Sarabu
- Sharecare Inc., Atlanta, GA, USA
- Stanford Medicine, Palo Alto, CA, USA
| | | | - Nirav R Shah
- Sharecare Inc., Atlanta, GA, USA
- Stanford Medicine, Palo Alto, CA, USA
- Clinical Excellence Research Center, Stanford, CA, USA
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23
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Zhu DX, Li L, Xu ZQ, Zhang C, Zhang JS, Sun JL, Wei JF. Cat-NPC2, a Newly Identified Allergen, With High Cross-Reactivity to Can f 7. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2021; 13:122-140. [PMID: 33191681 PMCID: PMC7680833 DOI: 10.4168/aair.2021.13.1.122] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/21/2020] [Accepted: 06/15/2020] [Indexed: 12/20/2022]
Abstract
Purpose Pet-derived allergens are the common indoor inhalant allergens. Among them, cat and dog allergens constitute more than 80% of animal allergic patients, which greatly affect the quality-of-life of patients and increase the burden of social health care. The aim of this study was to identify Cat-Niemann pick type C2 (NPC2) protein, a homologue of Can f 7, as a new allergen. Methods Cat-NPC2 complementary DNA (cDNA) was cloned and optimized for amplification and expression in Escherichia coli. Then, recombinant Cat-NPC2 (rCat-NPC2) was purified by Ni2+ affinity chromatography. The allergenicity was assessed by enzyme-linked immunosorbent assay (ELISA), western blot and basophil activation test (BAT). Based on the sequence similarity, the cross-reactivity between Cat-NPC2 and Can f 7 was investigated by inhibition ELISA. Circular dichroism spectroscopy and homology modeling were used to characterize the structure of Cat-NPC2. Results The cDNA sequence of Cat-NPC2 was cloned with a 450-bp open reading frame coding for 149 amino acids (GenBank MN_737596). The condon-optimized NPC2 gene was subcloned and expressed in E. coli with a molecular weight of 18.9 kDa. The native Cat-NPC2 was detected in cat dander extracts. The allergenicity determined by ELISA, western blot and BAT suggested at least 14.5% cat-allergic patients displayed high specific immunoglobulin E (IgE) recognition of Cat-NPC2. The predicted structure of Cat-NPC2 was found to consist of 7 β-strands arranged in 2 β-sheets. An ELISA based assay showed that rCat-NPC2 bound to cholesterol in a dose dependent manner. Based on the structure and sequence similarities, IgE cross-reactivity was demonstrated between Cat-NPC2 and Can f 7/Der f 2. Conclusions In the study, a novel cat allergen, belonging to the NPC2 protein family, was identified and characterized at both molecular and immunological levels. The study will offer a deeper understanding of cat allergens and improve a component-resolved diagnosis in pet allergy.
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Affiliation(s)
- Dan Xuan Zhu
- Women & Children Central Laboratory, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Lin Li
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi Qiang Xu
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Cheng Zhang
- Women & Children Central Laboratory, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Jin Song Zhang
- Department of Emergency Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - Jin Lyu Sun
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, China.
| | - Ji Fu Wei
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
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24
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Loo EXL, Liew TM, Yap GC, Wong LSY, Shek LPC, Goh A, Van Bever HPS, Teoh OH, Yap F, Tan KH, Thomas B, Ramamurthy MB, Goh DYT, Eriksson JG, Chong YS, Godfrey KM, Lee BW, Tham EH. Trajectories of early-onset rhinitis in the Singapore GUSTO mother-offspring cohort. Clin Exp Allergy 2020; 51:419-429. [PMID: 33278848 DOI: 10.1111/cea.13803] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 11/11/2020] [Accepted: 11/28/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The natural history of childhood rhinitis is not well described. OBJECTIVE This study aimed to identify different rhinitis trajectories in early childhood and their predictors and allergic associations. METHODS Rhinitis symptoms were ascertained prospectively from birth until 6 years using standardized questionnaires in 772 participants. Rhinitis was defined as one or more episodes of sneezing, runny and/or blocked nose >2 weeks duration. Latent trajectories were identified using group-based modelling, and their predictive risk factors and allergic associations were examined. RESULTS Three rhinitis trajectory groups were identified: 7.6% (n = 59) were termed early transient rhinitis, 8.6% (n = 66) late transient rhinitis, and 6.6% (n = 51) persistent rhinitis. The remaining 77.2% (n = 596) were classified as non-rhinitis/reference group. Early transient rhinitis subjects were more likely of Indian ethnicity, had siblings, reported childcare attendance, early wheezing and eczema in the first 3 years of life. Late transient rhinitis was associated with antenatal exposure to smoking, higher maternal education levels, and wheezing at age 36-72 months. Persistent rhinitis was associated with male gender, paternal and maternal history of atopy, eczema, and house dust mite sensitization. CONCLUSIONS & CLINICAL RELEVANCE Risk factors for early transient rhinitis involve a combination of genetic and early environmental exposures, whereas late transient rhinitis may relate to maternal factors and early respiratory infections independent of atopy. In contrast, persistent rhinitis is strongly associated with atopic risk and likely represents the typical trajectory associated with allergic disorders. Allergic rhinitis symptoms may commence as early as the first year of life and may inform development of early interventive strategies.
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Affiliation(s)
- Evelyn Xiu Ling Loo
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research Singapore, Singapore, Singapore.,Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Tau Ming Liew
- Department of Psychiatry, Singapore General Hospital, Singapore, Singapore.,Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Gaik Chin Yap
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lydia Su Yin Wong
- Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Lynette Pei-Chi Shek
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Anne Goh
- Department of Paediatric Allergy and Respiratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Hugo P S Van Bever
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Oon Hoe Teoh
- Department of Paediatric Allergy and Respiratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Fabian Yap
- Department of Endocrinology, KK Women's and Children's Hospital, Singapore, Singapore
| | - Kok Hian Tan
- Department of Maternal and Fetal Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Biju Thomas
- Department of Paediatric Allergy and Respiratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Mahesh Babu Ramamurthy
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Daniel Yam Thiam Goh
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Johan G Eriksson
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research Singapore, Singapore, Singapore.,Department of Obstetrics & Gynaecology, National University of Singapore, Singapore, Singapore.,University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Folkhälsan Research Center, Helsinki, Finland
| | - Yap-Seng Chong
- Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research Singapore, Singapore, Singapore.,Department of Obstetrics & Gynaecology, National University of Singapore, Singapore, Singapore
| | - Keith M Godfrey
- MRC Lifecourse Epidemiology Unit and NIHR Southampton Biomedical Research Centre, University of Southampton and University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Bee Wah Lee
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
| | - Elizabeth Huiwen Tham
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Khoo Teck Puat-National University Children's Medical Institute, National University Health System, Singapore, Singapore
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25
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Wang T, Wang P, Chen D, Xu Z, Yang L. circARRDC3 contributes to interleukin‑13‑induced inflammatory cytokine and mucus production in nasal epithelial cells via the miR‑375/KLF4 axis. Mol Med Rep 2020; 23:141. [PMID: 33313951 PMCID: PMC7751456 DOI: 10.3892/mmr.2020.11780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 10/30/2020] [Indexed: 12/11/2022] Open
Abstract
Allergic rhinitis (AR) is a common inflammatory disorder of the nasal mucosa. It is a major risk factor for asthma development, and uncontrolled AR can lead to the worsening of asthma symptoms, which affects the quality of life and productivity of patients. Circular RNAs (circRNA) were reported to be involved in the pathogenesis of AR. The aim of the present study was to investigate the functional role of circRNA arrestin domain-containing 3 (circARRDC3) in AR progression. circARRDC3 knockdown suppressed the levels of granulocyte-macrophage colony-stimulating factor (GM-CSF) and eotaxin and mucin 5AC (MUC5AC) in IL-13-induced nasal epithelial cells. Moreover, circARRDC3 silencing promoted viability and suppressed apoptosis in IL-13-induced NECs. circARRDC3 targeted microRNA (miR)-375 and negatively regulated its expression. miR-375 inhibition reversed the effects of circARRDC3 knockdown on GM-CSF, eotaxin and MUC5AC expression levels, cell viability and cell apoptosis. In addition, miR-375 inhibited krueppel-like factor 4 (KLF4) expression through direct interaction, and miR-375 overexpression inhibited GM-CSF, eotaxin and MUC5AC expression levels, and cell apoptosis, which was abolished following KLF4 overexpression. In addition, circARRDC3, miR-375 and KLF4 were all dysregulated in the nasal mucosa of patients with AR. miR-375 expression was negatively correlated with circARRDC3 and KLF4 expression, and circARRDC3 expression was positively correlated with KLF4 expression. In conclusion, circARRDC3 contributed to the development of AR by regulating the miR-375/KLF4 axis. These findings may provide novel insights into the pathogenesis of AR.
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Affiliation(s)
- Tao Wang
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Peihua Wang
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Dong Chen
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Zhou Xu
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
| | - Liyun Yang
- Department of Otolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, P.R. China
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26
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Li L, Liu H, Wang Y, Han X, Ge T, Pan L. Construction of a nomogram for predicting the risk of allergic rhinitis among employees of long-distance bus stations in China. INDOOR AIR 2020; 30:1178-1188. [PMID: 32445588 DOI: 10.1111/ina.12694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 03/30/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
This study examined indoor air pollutants and their health effects on allergic rhinitis in 3194 employees of 226 bus station halls and then constructed a nomogram model to predict allergic rhinitis risk in those employees. Indoor air temperature, relative humidity, PM10 , PM2.5 , total bacteria, and total fungi were measured, and questionnaires were used to collect basic station information and employee health information. The results revealed that the over-standard rates of PM10 , PM2.5 , total bacteria, and total fungi were 18.16%, 31.13%, 2.22%, and 55.89%, respectively. Seasonal variations were found in temperature, relative humidity, and PM2.5 . Passenger flow could affect temperature, and total bacteria. Central air conditioning could affect total bacteria. A total of 15.90% of the employees were diagnosed as allergic rhinitis by physicians. Relative humidity, fungi, self-reported allergic rhinitis symptoms, and exposure to smoking were the influencing factors for allergic rhinitis. These four variables were incorporated to construct a nomogram. The concordance index of the nomogram was 0.775 (95% CI: 0.745-0.806) and 0.749 (95% CI: 0.715-0.783) for the training cohort and test cohort, respectively. The calibration plot revealed that the nomogram model exhibited good discrimination and consistency. This nomogram model may help predict the occurrence of allergic rhinitis.
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Affiliation(s)
- Li Li
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hang Liu
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Yu Wang
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xu Han
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Tanxi Ge
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Lijun Pan
- China CDC Key Laboratory of Environment and Population Health, National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing, China
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27
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Laulajainen‐Hongisto A, Lyly A, Hanif T, Dhaygude K, Kankainen M, Renkonen R, Donner K, Mattila P, Jartti T, Bousquet J, Kauppi P, Toppila‐Salmi S. Genomics of asthma, allergy and chronic rhinosinusitis: novel concepts and relevance in airway mucosa. Clin Transl Allergy 2020; 10:45. [PMID: 33133517 PMCID: PMC7592594 DOI: 10.1186/s13601-020-00347-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/25/2020] [Indexed: 12/14/2022] Open
Abstract
Genome wide association studies (GWASs) have revealed several airway disease-associated risk loci. Their role in the onset of asthma, allergic rhinitis (AR) or chronic rhinosinusitis (CRS), however, is not yet fully understood. The aim of this review is to evaluate the airway relevance of loci and genes identified in GWAS studies. GWASs were searched from databases, and a list of loci associating significantly (p < 10-8) with asthma, AR and CRS was created. This yielded a total of 267 significantly asthma/AR-associated loci from 31 GWASs. No significant CRS -associated loci were found in this search. A total of 170 protein coding genes were connected to these loci. Of these, 76/170 (44%) showed bronchial epithelial protein expression in stained microscopic figures of Human Protein Atlas (HPA), and 61/170 (36%) had a literature report of having airway epithelial function. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) annotation analyses were performed, and 19 functional protein categories were found as significantly (p < 0.05) enriched among these genes. These were related to cytokine production, cell activation and adaptive immune response, and all were strongly connected in network analysis. We also identified 15 protein pathways that were significantly (p < 0.05) enriched in these genes, related to T-helper cell differentiation, virus infection, JAK-STAT signaling pathway, and asthma. A third of GWAS-level risk loci genes of asthma or AR seemed to have airway epithelial functions according to our database and literature searches. In addition, many of the risk loci genes were immunity related. Some risk loci genes also related to metabolism, neuro-musculoskeletal or other functions. Functions overlapped and formed a strong network in our pathway analyses and are worth future studies of biomarker and therapeutics.
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Affiliation(s)
- Anu Laulajainen‐Hongisto
- Department of Otorhinolaryngology–Head and Neck SurgeryUniversity of Helsinki and Helsinki University HospitalP.O.Box 263Kasarmikatu 11‐1300029 HUSHelsinkiFinland
- Laboratory of Cellular and Molecular ImmunologyInstitute of Microbiology of the Czech Academy of SciencesPragueCzech Republic
| | - Annina Lyly
- Department of Otorhinolaryngology–Head and Neck SurgeryUniversity of Helsinki and Helsinki University HospitalP.O.Box 263Kasarmikatu 11‐1300029 HUSHelsinkiFinland
- Skin and Allergy HospitalUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | | | | | - Matti Kankainen
- HUS Diagnostic CenterHelsinki University HospitalHelsinkiFinland
- Hematology Research Unit HelsinkiDepartment of HematologyHelsinki University Hospital Comprehensive Cancer CenterHelsinkiFinland
- Translational Immunology Research Program and Department of Clinical ChemistryUniversity of HelsinkiHelsinkiFinland
| | - Risto Renkonen
- Haartman InstituteUniversity of HelsinkiHelsinkiFinland
- HUS Diagnostic CenterHelsinki University HospitalHelsinkiFinland
| | - Kati Donner
- Hematology Research Unit HelsinkiDepartment of HematologyHelsinki University Hospital Comprehensive Cancer CenterHelsinkiFinland
| | - Pirkko Mattila
- Haartman InstituteUniversity of HelsinkiHelsinkiFinland
- Hematology Research Unit HelsinkiDepartment of HematologyHelsinki University Hospital Comprehensive Cancer CenterHelsinkiFinland
| | - Tuomas Jartti
- Department of Pediatrics and Adolescent MedicineTurku University Hospital and University of TurkuTurkuFinland
| | - Jean Bousquet
- Université MontpellierMontpellierFrance
- MACVIA‐FranceMontpellierFrance
- Corporate Member of Freie Universität BerlinHumboldt‐Universität Zu BerlinBerlin Institute of HealthComprehensive Allergy CenterDepartment of Dermatology and AllergyCharité–Universitätsmedizin BerlinBerlinGermany
| | - Paula Kauppi
- Skin and Allergy HospitalUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
| | - Sanna Toppila‐Salmi
- Skin and Allergy HospitalUniversity of Helsinki and Helsinki University HospitalHelsinkiFinland
- Haartman InstituteUniversity of HelsinkiHelsinkiFinland
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28
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Huang C, Zhang J, Sun C, Liu W, Zhang Y, Li B, Zhao Z, Deng Q, Zhang X, Qian H, Zou Z, Yang X, Sun Y, Xia Z, Weschler LB, Sundell J. Associations between household renovation and rhinitis among preschool children in China: A cross-sectional study. INDOOR AIR 2020; 30:827-840. [PMID: 32297363 DOI: 10.1111/ina.12675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 02/12/2020] [Accepted: 04/08/2020] [Indexed: 06/11/2023]
Abstract
During 2010-2012, we surveyed 40,010 3- to 6-year-old children in seven Chinese cities (Beijing, Taiyuan, Urumqi, Shanghai, Nanjing, Changsha, and Chongqing). Their parents reported information on household renovation, including the timing of renovation and the choice of materials for walls and floors in the child's room, and the incidence of their child's rhinitis. Multivariate and two-level (city-child) logistic regression analyses yielding adjusted odds ratios (AOR) with 95% confidence intervals were performed. Sensitivity analyses stratifying data for location and economic level were also performed. About 48.0% of the children had ever had allergic rhinitis, 41.2% had current allergic rhinitis, and 9.0% had had doctor-diagnosed rhinitis. Exposure to household renovation during early lifetime (birth to 1-year-old) had an AOR of 1.43 (1.04-1.9) for allergic rhinitis. The incidence of allergic rhinitis was significantly different in children exposed to different floor and wall covering materials. Floor or wall covering material composed of organic materials significantly increased the risk of childhood allergic rhinitis compared with tile flooring or lime wall covering. Oil paint had an AOR of 1.66 (1.28-2.14) for diagnosed rhinitis compared with lime wall covering. Adding new furniture the year before pregnancy was associated with an AOR of 1.18 (1.10-1.27) and 1.18 (1.11-1.25) for lifetime and current rhinitis. Solid wood or tiles/ceramic as floor materials, and using wallpaper, oil paint, or emulsion panels as wall materials were risk factors for doctor-diagnosed rhinitis. Sensitivity analyses showed that children living in southern or higher economic level China cities were more likely to have allergic rhinitis with household renovation.
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Affiliation(s)
- Chen Huang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Jialing Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Chanjuan Sun
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Wei Liu
- School of Architecture, Tsinghua University, Beijing, China
| | - Yinping Zhang
- School of Architecture, Tsinghua University, Beijing, China
| | - Baizhan Li
- Key Laboratory of Three Gorges Reservoir Region's Eco-Environment, Chongqing University, Chongqing, China
| | - Zhuohui Zhao
- School of Public Health, Key Lab of Public Health Safety of the Ministry of Education, Key Lab of Health Technology Assessment, National Health and Family Planning Commission of the People's Republic of China, Fudan University, Shanghai, China
| | - Qihong Deng
- School of Public Health, Central South University, Changsha, China
| | - Xin Zhang
- Research Center for Environmental Science and Engineering, Shanxi University, Taiyuan, China
| | - Hua Qian
- School of Energy and Environment, Southeast University, Nanjing, China
| | - Zhijun Zou
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Xu Yang
- College of Life Sciences, Central China Normal University, Wuhan, China
| | - Yuexia Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
| | - Zhenzhen Xia
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | | | - Jan Sundell
- School of Environmental Science and Engineering, Tianjin University, Tianjin, China
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29
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Hong SN, Won JY, Nam EC, Kim TS, Ryu YJ, Kwon JW, Lee WH. Clinical Manifestations of Allergic Rhinitis by Age and Gender: A 12-Year Single-Center Study. Ann Otol Rhinol Laryngol 2020; 129:910-917. [PMID: 32425054 DOI: 10.1177/0003489420921197] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES Currently, epidemiological data on allergic rhinitis collected through the skin prick test are scarce. Moreover, the relationship of age and sex to allergic rhinitis is not comprehensively understood. This study aimed to characterize allergic rhinitis and the associated clinical manifestations by age and sex. METHODS We retrospectively investigated data from 2883 patients who visited a single university hospital for rhinitis symptoms between January 2003 and December 2014. Of these 2883 patients, 1964 who underwent a skin prick test with 11 standardized allergen extracts and completed a nasal symptom questionnaire were enrolled. The clinical characteristics of allergen sensitization and nasal symptoms were analyzed by sex and age distribution. RESULTS The prevalence of allergen sensitization progressively decreased with age after peaking at between 20 and 29 years. The sensitization rate was higher in males than in females (P = .046). The sensitization rate to house dust mites decreased with age, while sensitization to mugwort and ragweed increased. Six allergens (Dermatophagoides pteronyssinus, Dermatophagoides farinae, mugwort, trees, ragweed, and cats) were sufficient to identify >96% of patients with allergen sensitization. Nasal obstruction tended to decrease with age and was more prevalent in males (P = .002) than in females, while rhinorrhea (P = .007) and itching (P = .013) were more prevalent in females. Total nasal symptom scores did not differ by sex. CONCLUSIONS The clinical characteristics of allergic rhinitis, including allergen-sensitization patterns and related symptoms, varied by age and sex. Six common allergens could be sufficient to generate a cost-effective tool to identify allergic rhinitis.
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Affiliation(s)
- Seung-No Hong
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Boramae Medical Center, Seoul, Korea
| | - Jun Yeon Won
- Department of Otorhinolaryngology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Eui-Cheol Nam
- Department of Otorhinolaryngology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Tae Su Kim
- Department of Otorhinolaryngology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Yoon-Jong Ryu
- Department of Otorhinolaryngology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Jea-Woo Kwon
- Department of Allergy and Clinical Immunology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
| | - Woo Hyun Lee
- Department of Otorhinolaryngology, Kangwon National University College of Medicine, Kangwon National University Hospital, Chuncheon, Korea
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Hossenbaccus L, Linton S, Garvey S, Ellis AK. Towards definitive management of allergic rhinitis: best use of new and established therapies. ALLERGY, ASTHMA, AND CLINICAL IMMUNOLOGY : OFFICIAL JOURNAL OF THE CANADIAN SOCIETY OF ALLERGY AND CLINICAL IMMUNOLOGY 2020; 16:39. [PMID: 32508939 PMCID: PMC7251701 DOI: 10.1186/s13223-020-00436-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/13/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Allergic rhinitis (AR) is an inflammatory disease of the nasal mucosa impacting up to 25% of Canadians. The standard of care for AR includes a treatment plan that takes into account patient preferences, the severity of the disease, and most essentially involves a shared decision-making process between patient and provider. BODY Since their introduction in the 1940s, antihistamines (AHs) have been the most utilized class of medications for the treatment of AR. First-generation AHs are associated with adverse central nervous system (CNS) and anticholinergic side effects. On the market in the 1980s, newer generation AHs have improved safety and efficacy. Compared to antihistamines, intranasal corticosteroids (INCS) have significantly greater efficacy but longer onset of action. Intranasal AH and INCS combinations offer a single medication option that offers broader disease coverage and faster symptom control. However, cost and twice-per-day dosing remain a major limitation. Allergen immunotherapy (AIT) is the only disease-modifying option and can be provided through subcutaneous (SCIT) or sublingual (SLIT) routes. While SCIT has been the definitive management option for many years, SLIT tablets (SLIT-T) have also been proven to be safe and efficacious. CONCLUSION There is a range of available treatment options for AR that reflect the varying disease length and severity. For mild to moderate AR, newer generation AHs should be the first-line treatment, while INCS are mainstay treatments for moderate to severe AR. In patients who do not respond to INCS, a combination of intranasal AH/INCS (AZE/FP) should be considered, assuming that cost is not a limiting factor. While SCIT remains the option with the most available allergens that can be targeted, it has the potential for severe systemic adverse effects and requires weekly visits for administration during the first 4 to 6 months. SLIT-T is a newer approach that provides the ease of being self-administered and presents a reduced risk for systemic reactions. In any case, standard care for AR includes a treatment plan that takes into account disease severity and patient preferences.
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Affiliation(s)
- Lubnaa Hossenbaccus
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, Canada
- Allergy Research Unit, Kingston General Health Research Institute, Kingston, Canada
| | - Sophia Linton
- Department of Medicine, Queen’s University, Kingston, Canada
- Allergy Research Unit, Kingston General Health Research Institute, Kingston, Canada
| | - Sarah Garvey
- Allergy Research Unit, Kingston General Health Research Institute, Kingston, Canada
| | - Anne K. Ellis
- Department of Biomedical and Molecular Sciences, Queen’s University, Kingston, Canada
- Department of Medicine, Queen’s University, Kingston, Canada
- Allergy Research Unit, Kingston General Health Research Institute, Kingston, Canada
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Richards M, Ferber J, Li DK, Darrow LA. Cesarean delivery and the risk of allergic rhinitis in children. Ann Allergy Asthma Immunol 2020; 125:280-286.e5. [PMID: 32387533 DOI: 10.1016/j.anai.2020.04.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 04/24/2020] [Accepted: 04/27/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Cesarean delivery (C-section) may influence the infant microbiome and affect immune system development and subsequent risk for allergic rhinitis (AR). OBJECTIVE To investigate the association between C-section and AR at ages 6, 8, and 10 years. METHODS Data were collected prospectively through Kaiser Permanente Northern Californias (KPNC) integrated healthcare system. Children were eligible if they were born in a KPNC hospital and remained in the KPNC system for minimum 6 years (n = 117,768 age 6; n = 75,115 age 8; n = 40,332 age 10). Risk ratios (RR) for C-section and AR were estimated at each follow-up age and adjusted for important covariates, including intrapartum antibiotics, pre-pregnancy body mass index, maternal allergic morbidities, and breastfeeding. Subanalyses considered information on C-section indication, labor, and membrane rupture. RESULTS After adjusting for confounders, we did not observe an association between C-section and AR at follow-up ages 6, 8, or 10 years (RR [CI]: 6 years, 0.98 [0.91, 1.04]; 8 years, 1.00 [0.95, 1.07]; 10 years, 1.03 [0.96, 1.10]). In stratified analyses, there was limited evidence that C-section increases the risk of AR in certain subgroups (eg, children of non-atopic mothers, second or higher birth order children), but most estimated risk ratios were consistent with no association. Estimated associations were unaffected by participant attrition, missing data, or intrapartum antibiotics. CONCLUSION C-section delivery was not associated with AR at follow-up ages of 6, 8, or 10 years in a large contemporary US cohort.
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Affiliation(s)
- Megan Richards
- School of Community Health Sciences, University of Nevada, Reno, Nevada.
| | - Jeannette Ferber
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - De-Kun Li
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Lyndsey A Darrow
- School of Community Health Sciences, University of Nevada, Reno, Nevada
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Silver JD, Spriggs K, Haberle S, Katelaris CH, Newbigin EJ, Lampugnani ER. Crowd-sourced allergic rhinitis symptom data: The influence of environmental and demographic factors. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 705:135147. [PMID: 31841904 DOI: 10.1016/j.scitotenv.2019.135147] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/21/2019] [Accepted: 10/22/2019] [Indexed: 06/10/2023]
Abstract
Allergic Rhinitis (AR) affects over half a billion people worldwide with an estimated prevalence of 1 in 5 individuals in developed countries. Although ambient pollen exposure is a causal factor in AR, the symptom-exposure relationship is typically not studied in the broader community but in small, well-characterised cohorts drawn from clinical populations. To identify relationships between AR symptoms in the community and a range of environmental factors, we used a database containing over 96,000 symptom score reports collected over a 3-year period (2014-2016) through freely available smartphone apps released in two Australian cities, Melbourne and Canberra. Ambient pollen levels and symptom scores were strongly related, with grass pollen explaining most of the symptom variation. Other factors correlated with higher symptom scores included temperature (R > 0.73) and wind speed (R > 0.75). In general, worse symptom scores were reported by younger participants, women, and those who had taken medication for AR in the preceding 24 h. The strength of this relationship varied between the two cities. Smartphone-based symptom surveys offer a cost-effective means of studying real-world risk factors for AR in a broader 'extra-clinical' population.
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Affiliation(s)
- Jeremy D Silver
- School of Earth Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Kymble Spriggs
- Melbourne Medical School, University of Melbourne, Parkville, Victoria, Australia; Department of Allergy and Immunology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Simon Haberle
- School of Culture, History and Language, College of Asia and the Pacific, Australian National University Canberra, Canberra, Australian Capital Territory, Australia; ARC Centre of Excellence for Australian Biodiversity and Heritage, Australian National University, Canberra, Australian Capital Territory, Australia
| | | | - Edward J Newbigin
- School of BioSciences, University of Melbourne, Parkville, Victoria, Australia
| | - Edwin R Lampugnani
- School of BioSciences, University of Melbourne, Parkville, Victoria, Australia.
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Abstract
OBJECTIVE The objective of this study was to map evidence of the association of ABO blood groups with allergic diseases such as allergic rhinitis (AR), atopic dermatitis (AD) and asthma. DESIGN A scoping review. DATA SOURCES PubMed, Scopus, Direct Open Access Journal, Medline, Cumulative Index to Nursing and Allied Health Literature, ScienceDirect and SpringerLink were searched from October 2017 until May 2018. ELIGIBILITY CRITERIA FOR SELECTING STUDIES We selected all types of studies including case-control studies, prospective or retrospective cohort studies, cross-sectional studies and experimental studies, and we included reviews such as literature reviews, systematic reviews with or without meta-analysis and scoping reviews that were published in English and associated the ABO blood group with the three allergic diseases (asthma, AR and AD) in humans of all age groups. DATA EXTRACTION AND SYNTHESIS Two reviewers independently screened the titles and abstracts and assessed the full-text articles of the abstracts that met the eligibility requirements. Data from the included studies were extracted, evaluated and reported in the form of narrative synthesis. RESULTS Of the 10 246 retrieved titles, only 14 articles were selected for a scoping review based on the eligibility criteria. The majority of the studies demonstrated a significant association between ABO blood groups and allergic diseases. We found that blood group O is prominent in patients with AR and asthma, while a non-O blood group is common in patients with AD. CONCLUSION This scoping review serves as preliminary evidence for the association of ABO blood groups with allergic diseases. Further studies need to be conducted so that the relationship between ABO blood groups and allergic diseases can be fully established. This could be helpful for clinicians and health professionals in consulting and managing patients who suffer from allergic diseases in the future.
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Affiliation(s)
- Nur Hidayah Dahalan
- Cluster of Regenerative Medicine, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang, Malaysia
| | - Sharifah Azdiana Tuan Din
- Cluster of Regenerative Medicine, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang, Malaysia
| | - Siti Mardhiana Binti Mohamad
- Cluster of Regenerative Medicine, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Kepala Batas, Penang, Malaysia
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秦 雅, 孙 玉, 王 琳, 张 莉, 赵 丽, 李 志, 张 胜, 崔 鑫, 姜 彦. [Distribution of allergens and associated risk factors of patients with allergic rhinitis in Qingdao area]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2020; 34:36-40. [PMID: 32086895 PMCID: PMC10128576 DOI: 10.13201/j.issn.1001-1781.2020.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Objective:To analyze the distribution of allergens and the risk factors in patients with allergic rhinitis in Qingdao area. Method:Two hundred and sixteen patients diagnosed with allergic rhinitis and 49 healthy volunteers were admitted to the outpatient clinic of the Otolaryngology Department of the three branches of Qingdao University Affiliated Hospital in Qingdao from August 2018 to March 2019. A total of 271 patients(5-84 years old) were included in the epidemiological investigation. The study conducted a skin stinging test of inhalation allergens. In addition, the questionnaire of allergic disease and self-examination of dust mite allergy were carried out for each group of patients, and the results were analyzed and counted. Result:①In 216 patients with allergic rhinitis, the top six inhalation allergens were dust mites(55.0%), house dust mites(46.1%), tropical mites(21.8%), dog hair(16.6%), Artemisia halodendron(13.3%), and German cockroaches(10.3%). ②Inhalation allergens, the degree of positive of house dust mites and dust mites were mainly(+++), the degree of positive of Artemisia halodendron were mainly(+++) and(++++), and the degree of positive of other allergens were mainly(++). ③There were statistically significant differences in the positive rates of inhalation allergens in different age groups, and the positive rates of inhalation allergens gradually decreased with age after adulthood. ④The single factor and multi-factor logical regression analysis all showed that the history of smoking, family history, age less than 18 years, and 18-40 years old were closely related to the occurrence of allergic rhinitis(P<0.05). ⑤Using Spearson-related analysis and loess regression analysis, it was found that with the increase of dust mite self-examination score, the positive rate of dust mite increased significantly. Conclusion:The most important inhalation allergens of patients with allergic rhinitis in Qingdao area are dust mites, dog hair and artemisinin. The positive rate of inhalation allergens is influenced by age and there are certain rules in them. Smoking history, family history, age and other factors are risk factors for allergic rhinitis. The dust mite self-examination score can predict the occurrence of dust mite allergy.
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Affiliation(s)
- 雅楠 秦
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - 玉霖 孙
- 海阳市人民医院耳鼻咽喉科Department of Otolaryngology, Haiyang People's Hospital
| | - 琳 王
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - 莉 张
- 青岛大学附属青岛市妇女儿童医院耳鼻咽喉科Department of Otorhinolaryngology, Qingdao Women's and Children's Hospital, Qingdao University
| | - 丽娟 赵
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - 志远 李
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - 胜男 张
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
| | - 鑫 崔
- 青岛大学附属青岛市妇女儿童医院耳鼻咽喉科Department of Otorhinolaryngology, Qingdao Women's and Children's Hospital, Qingdao University
| | - 彦 姜
- 青岛大学附属医院耳鼻咽喉头颈外科(山东青岛,266003)Department of Otorhinolaryngology Head and Neck Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266003, China
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Sharma K, Ravindra K, Mor S, Kaur-Sidhu M, Sehgal R. Detection and identification of dust mite allergens in the air conditioning filters in Chandigarh, India. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:24262-24271. [PMID: 31228070 DOI: 10.1007/s11356-019-05574-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
Modern lifestyle with the increasing use of air conditioner (AC) has been linked with breathing difficulties, irritation, dryness, and other symptoms. Hence, dust mites were isolated from AC filters, which causes allergic diseases. A total of 95 dust samples were collected from AC filters from hospitals, guest house, office, school, and homes in Chandigarh, India. The highest concentration of dust mites was detected from hospitals (9/g), offices (7/g), households (6/g), guest houses (3/g), and schools (0/g). Based on the morphology of dust mites observed under a light microscope, Dermatophagoides and Acarus species were found most common. Indoor air quality was also monitored to find out their relation with dust mites present in AC filters. Further, the respiratory health status of indoor facility users was also assessed using a standard questionnaire as a study tool. It was seen that 55.3% of male among the total respondents were having an allergy and only 44.7% of the females had an allergy. The allergy among the male respondents (55.3%) was significantly more (p < 0.05) in comparison with female respondents (44.7%). Some of the respondents also reported a family history of rhinitis (31.9%), asthma (12.8%), recurrent urticaria (6.4%), and conjunctivitis (6.4%). Interestingly, 23.4% of study participants reported that they get disturbed by the use of AC and house dust was found to be the most triggering factor in enhancing the symptoms of allergy. Thus, it is recommended that air conditioner filters should be cleaned regularly to prevent the accumulation of the dust mites and related allergens on filter dust.
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Affiliation(s)
- Kashika Sharma
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Khaiwal Ravindra
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India.
| | - Suman Mor
- Department of Environment Studies, Panjab University (PU), Chandigarh, 160014, India
| | - Maninder Kaur-Sidhu
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
| | - Rakesh Sehgal
- Department of Medical Parasitology, Postgraduate Institute of Medical Education and Research (PGIMER), Chandigarh, 160012, India
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Number of seasonal exposures to Japanese cedar pollen increases the risk of sensitization: Observational study in Korean adults. Sci Rep 2019; 9:10496. [PMID: 31324893 PMCID: PMC6642128 DOI: 10.1038/s41598-019-47124-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 07/11/2019] [Indexed: 11/15/2022] Open
Abstract
Sensitization to seasonal allergens usually requires repeated exposure to them. However, research on the extent of exposure that increases the risk of sensitization to specific allergens is lacking. Therefore, we investigated the levels of exposure to Japanese cedar pollen that increased the risk of sensitization to it. A cross-sectional study was conducted with 857 college students living in Jeju, South Korea, as it is the only province in Korea where Japanese cedar pollen levels are high. Questionnaires about demographic characteristics were distributed and skin prick tests for allergic sensitization were performed. Sensitization rates of groups divided by residence period were 3.8% (less than 1 year), 1.8% (1–2 years), 8.5% (2–3 years), 10.3% (3–4 years), 14.8% (4–10 years), and 19.1% (over 10 years). Residence period was an influencing factor of sensitization rate to Japanese cedar pollen, and the cut-off value of the residence period that increased the risk of sensitization to Japanese cedar pollen was found to be 25 months. Repeated exposure to seasonal allergens was related to an increased sensitization rate in young adults. Our results suggested that exposure to Japanese cedar pollen for over two seasons could increase the risk in Korean adults.
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Trends in skin prick test according to seasons: Results of a Korean multi-center study. Auris Nasus Larynx 2019; 47:90-97. [PMID: 31221430 DOI: 10.1016/j.anl.2019.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/17/2019] [Accepted: 05/29/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Allergy is a very common condition. Allergic disease is highly affected by environmental changes. Conditions of the four seasons can change dramatically in Republic of Korea (ROK). To assess changes in rates of aeroallergen positivity according to seasons and environmental factors (temperature, humidity, and precipitation). MATERIALS A total of 20 hospitals were selected based on population distribution in ROK. A skin prick test (SPT) panel comprising 55 aeroallergens was distributed to 18 hospitals for a prospective study. Results from SPTs done in 2006 and 2010 were collected and analyzed retrospectively from 20 hospitals and 2014/2015 SPT (from June 2014 to May 2015) results from 18 hospitals were collected prospectively. RESULTS We compared allergen-positive rates among seasons. Positive test rates for several pollens and house dust mites increased significantly in spring and fall. Pollens positive rate varied significantly according to temperature, precipitation, and humidity while mite allergens were less susceptible to environment. CONCLUSION There are four distinct seasons in ROK. The positivity of pollen allergens were especially affected by temperature and precipitation in spring. House dust mites were less affected by seasons, temperature, precipitation, and humidity less than pollen. Therefore, regular follow-up and re-evaluation of allergic test are essential considering changes of seasons and environment for acceptable diagnosis and treatment.
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Xu H, Shu H, Zhu J, Song J. Inhibition of TLR4 inhibits allergic responses in murine allergic rhinitis by regulating the NF-κB pathway. Exp Ther Med 2019; 18:761-768. [PMID: 31281453 DOI: 10.3892/etm.2019.7631] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 03/29/2019] [Indexed: 02/06/2023] Open
Abstract
The present study investigated the underlying mechanisms and effects of toll-like receptor 4 (TLR4) on a mouse model of allergic rhinitis (AR). An ovalbumin (OVA)-induced mouse model of AR was treated with TLR4-short hairpin RNA (shRNA). Allergic symptoms were then subsequently assessed. Protein levels of OVA-specific immunoglobulin E (IgE), eosinophil cation protein (ECP), leukotriene C4 (LTC4) and prostaglandin D2 (PGD2) in mice serum and nasal lavage fluid, as well as various inflammatory cytokine mediators in mice serum, were determined by ELISA. Protein level detection was performed using reverse transcription-quantitative PCR and western blot analysis. The results revealed that TLR4 was highly expressed in the nasal mucosa of AR mice. TLR4 inhibition significantly relieved OVA-induced AR symptoms. Relief of symptoms was evidenced by a decreased frequency of sneezing and nose friction, reduced levels of OVA-specific IgE, ECP, LTC4, PGD2, less inflammatory cells and decreased levels of T-helper 2 type cytokines. In addition, the data indicated that OVA-induced activation of the NF-κB pathway was repressed by TLR4-shRNA. The results of the current study indicate that TLR4 may be a promising therapeutic target of AR.
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Affiliation(s)
- Hangyu Xu
- Department of Otolaryngology, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Hairong Shu
- Department of Otolaryngology, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Jie Zhu
- Medical Test Center, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Jianxin Song
- Department of Otolaryngology, Taizhou Central Hospital, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
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Han DH, Shin JM, An S, Kim JS, Kim DY, Moon S, Kim JS, Cho JS, Kim SW, Kim YH, Roh HJ, Shim WS, Rha KS, Kim SW, Lee SS, Kim DW, Cho KS, Yim HJ, Park SK, Rhee CS. Long-term Breastfeeding in the Prevention of Allergic Rhinitis: Allergic Rhinitis Cohort Study for Kids (ARCO-Kids Study). Clin Exp Otorhinolaryngol 2019; 12:301-307. [PMID: 30992421 PMCID: PMC6635702 DOI: 10.21053/ceo.2018.01781] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/11/2019] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVES There is a great deal of interest in the possibility that environmental factors may influence the risk of developing allergic rhinitis (AR) in early life. We investigated the simultaneous effects of mode of delivery and duration of breastfeeding on the development of AR in children. METHODS Data from 1,374 children participating in the Allergic Rhinitis Cohort Study for kids (ARCO-kids study) was analyzed. All subjects were divided into AR or non-allergic rhinitis (NAR) groups. Data on environmental factors, mode of delivery and duration of breastfeeding were collected using a questionnaire. RESULTS Compared with short-term breastfeeding (<6 months), long-term breastfeeding (≥12 months) was significantly associated with a lower prevalence of AR (adjusted odds ratio [aOR], 0.54; 95% confidence interval [CI], 0.34 to 0.88). Children in the AR group also had a higher cesarean delivery rate than those in the NAR group (39.1% vs. 32.8%, P=0.05). Regarding the combined effects of mode of delivery and duration of breastfeeding, long-term breastfeeding with a vaginal delivery strongly suppressed the development of AR, compared to short-term breastfeeding with a cesarean delivery (aOR, 0.47; 95% CI, 0.30 to 0.73). CONCLUSION Long-term breastfeeding (≥12 months) and a vaginal delivery are associated with a lower risk of developing childhood AR.
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Affiliation(s)
- Doo Hee Han
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Jae-Min Shin
- Department of Otorhinolaryngology, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Seokyung An
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Jong Seung Kim
- Department of Otolaryngology-Head and Neck Surgery, Chonbuk National University Medical School, Jeonju, Korea
| | - Dong-Young Kim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Sungji Moon
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Jung-Soo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Joong Saeng Cho
- Department of Otolaryngology-Head and Neck Surgery, Kyung Hee University School of Medicine, Seoul, Korea
| | - Si Whan Kim
- Department of Otolaryngology-Head and Neck Surgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Young Hyo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Inha University College of Medicine, Incheon, Korea
| | - Hwan-Jung Roh
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Woo Sub Shim
- Department of Otorhinolaryngology-Head and Neck Surgery, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Ki-Sang Rha
- Department of Otolaryngology-Head and Neck Surgery, Chungnam National University School of Medicine, Daejeon, Korea
| | - Sang-Wook Kim
- Department of Otorhinolaryngology, Gyeongsang National University Hospital, Jinju, Korea.,Institute of Health Sciences, Gyeongsang National University, Jinju, Korea
| | - Seung-Sin Lee
- Department of Otolaryngology-Head and Neck Surgery, Ewha Womans University School of Medicine, Seoul, Korea
| | - Dae Woo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, SMG-SNU Boramae Medical Center, Seoul, Korea
| | - Kyu-Sup Cho
- Department of Otorhinolaryngology-Head and Neck Surgery, Pusan National University School of Medicine, Busan, Korea
| | - Hyo Jin Yim
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea
| | - Sue K Park
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.,Department of Biomedical Science, Seoul National University Graduate School, Seoul, Korea.,Cancer Research Institute, Seoul National University, Seoul, Korea
| | - Chae-Seo Rhee
- Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea.,Graduate School of Immunology, Seoul National University College of Medicine, Seoul, Korea.,Institute of Allergy and Clinical Immunology, Seoul National University Biomedical Research Center, Seoul, Korea.,Sensory Organ Research Institute, Seoul National University Biomedical Research Center, Seoul, Korea, Korea
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Calogero G, Ignazio LM, Caterina MG, Giorgio C, Martina R, Claudio A. Influence of cigarette smoking on allergic rhinitis: a comparative study on smokers and non-smokers. ACTA BIO-MEDICA : ATENEI PARMENSIS 2019; 90:45-51. [PMID: 31292427 PMCID: PMC6776172 DOI: 10.23750/abm.v90i7-s.8658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Indexed: 11/07/2022]
Abstract
It has been described that exposure to tobacco smoke causes worsening of allergic rhinitis symptoms. Otherwise, some studies have demonstrated a negative association between cigarette smoke and allergic rhinitis (AR). Given this inconsistency, this study evaluated the quality of life and immuno-inflammatory parameters in current smokers and nonsmokers suffering from AR. A comparative cross-sectional study was conducted in patients who presented symptoms of AR. Patients were categorized into two groups: current smokers and non-smokers based on salivary cotinine measurements. Primary outcomes were the levels of immuno-inflammatory biomarkers (IgE, IL-4, IL-5, IL-13, IL-17, and IL-33) in serum and nasal lavage and the quality of life assessed by the Mini Rhinoconjunctivitis Quality of Life Questionnaire (MiniRQLQ). Secondary outcomes included salivary cotinine levels, and pulmonary function parameters, such as forced vital capacity (FVC), forced expiratory volume in 1s (FEV1), and FEV1/FVC ratio. Twenty-two patients per group were included in the analysis, with no significant difference regarding demographic characteristics. Statistically significant higher values in salivary cotinine levels (p<0.001) and lower lung function FEV1 (p=0.044) and FEV1/FVC (p=0.047) were found in smokers than in nonsmokers. Only serum IL-33 was significantly different in the 2 groups (p<0.001): smokers had higher values compared to non-smokers. There were no significant differences in MiniRQLQ parameters. Although cigarette smoking was not associated with more severe symptoms, smoking could be associated with increased risk of developing airway remodeling and decreased lung function in AR patients, thus appropriate treatment should be prescribed if smoke avoidance is unfeasible.
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Affiliation(s)
- Grillo Calogero
- Otolayngology Unit, Department of Medical Sciences, Surgical and Advanced Technologies, University of Catania, Catania, Italy
| | - La Mantia Ignazio
- Otolayngology Unit, Department of Medical Sciences, Surgical and Advanced Technologies, University of Catania, Catania, Italy,Correspondence: Ignazio La Mantia Department of Medical Sciences, Surgical and Advanced Technologies, GF Ingrassia, Via Santa Sofia, 78 - 95123 Catania, Italy Tel. +395864127 E-mail:
| | | | | | - Ragusa Martina
- Otolayngology Unit, Department of Medical Sciences, Surgical and Advanced Technologies, University of Catania, Catania, Italy
| | - Andaloro Claudio
- Otolayngology Unit, Department of Medical Sciences, Surgical and Advanced Technologies, University of Catania, Catania, Italy
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Physicians' Perception on Allergic Rhinitis and Its Management: A Questionnaire Based Survey. Indian J Otolaryngol Head Neck Surg 2018; 71:2096-2105. [PMID: 31763301 DOI: 10.1007/s12070-018-1500-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 09/14/2018] [Indexed: 12/24/2022] Open
Abstract
Despite high prevalence and impact on quality of life, Allergic Rhinitis (AR) is undertreated. Furthermore, existence of a relationship between AR and upper respiratory tract infection (URTI) is less explored. This Pan-India survey intended to assess physicians' perception about AR and URTI, and management practices in Indian setting. This questionnaire-based survey was conducted by telephonically interviewing 300 physicians [Consultant Physicians (CP): 33%; General Physicians (GP): 32%; ENT surgeons: 16%; pediatricians: 11%; allergy specialists: 8%] across India. CPs (33%) and GPs (32%) treated more AR patients in a month, versus other specialties. According to physicians, about 29.6% of patients with AR develop URTI in a month. Majority of the physicians (98%) believed that recurrent URTI can be considered as an indicator of undiagnosed AR. Majority of the physicians (98%) also considered AR to be a predisposing factor for increased risk of URTI. About 62% agreed that prompt diagnosis and treatment of AR can reduce the risk of complications such as URTI. Most preferred first- and second-line of treatment (alone or in combination) in AR management were oral antihistamines (41%) and intranasal corticosteroids (40%), respectively. Similar treatment preferences were observed irrespective of physicians' specialization and years of experience. This survey sheds light on the need to implement clear guidelines for the diagnosis and management of AR.
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Zaidi M, Zaidi S. Comments on Vasileiadou et al. Pediatr Allergy Immunol 2018; 29:573. [PMID: 29679506 DOI: 10.1111/pai.12912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Sara Zaidi
- King's College London School of Medical Education, London, UK
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Prevalence and Determinants of Sinus Problems in Farm and Non-Farm Populations of Rural Saskatchewan, Canada. SINUSITIS 2018. [DOI: 10.3390/sinusitis3010002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Caniatti MCDCL, Borelli SD, Guilherme ALF, Franzener SB, Tsuneto LT. Association between KIR genes and dust mite sensitization in a Brazilian population. Hum Immunol 2017; 79:51-56. [PMID: 29100942 DOI: 10.1016/j.humimm.2017.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 10/29/2017] [Accepted: 10/30/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Killer cell immunoglobulin-like receptors (KIRs), found on the surface of natural killer (NK) cells, play a key role in controlling the innate response. Such response depends on a series of cellular interactions between these receptors and HLA activating/inhibiting ligands. Atopic diseases have been associated with genes that regulate cytokine production and HLA genes, which may either protect or predispose to hypersensitivity. OBJECTIVE To verify an association study of KIR genes with sensitization to the following mites: Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Blomia tropicalis. METHODS A total of 341 children aged up to 14 years, were classified as mite-sensitive or mite-insensitive after undergoing a skin prick test for immediate allergic reactions. The presence/absence of KIR genes and their human leukocyte antigen (HLA) ligands was determined by polymerase chain reaction-sequence specific oligonucleotide (PCR-SSO) with the commercial kit LabType™ using Luminex™. RESULTS The frequencies of KIR genes and their respective class I HLA ligands and the frequency of haplotypes were performed in sensitive and insensitive individuals, and no significant differences were found. CONCLUSION Our results suggest no influence of KIR genes on resistance/susceptibility to sensitization to dust mites.
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Affiliation(s)
| | - Sueli Donizete Borelli
- Department of Basic Health Sciences, Universidade Estadual de Maringá (UEM), Maringá, Paraná, Brazil
| | | | | | - Luiza Tamie Tsuneto
- Department of Basic Health Sciences, Universidade Estadual de Maringá (UEM), Maringá, Paraná, Brazil
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Nguyen AN, Elbert NJ, Pasmans SGMA, Kiefte-de Jong JC, de Jong NW, Moll HA, Jaddoe VWV, de Jongste JC, Franco OH, Duijts L, Voortman T. Diet Quality throughout Early Life in Relation to Allergic Sensitization and Atopic Diseases in Childhood. Nutrients 2017; 9:nu9080841. [PMID: 28783056 PMCID: PMC5579634 DOI: 10.3390/nu9080841] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 07/28/2017] [Accepted: 08/02/2017] [Indexed: 01/16/2023] Open
Abstract
Early-life nutrition is an important modifiable determinant in the development of a child’s immune system, and may thereby influence the risk of allergic sensitization and atopic diseases. However, associations between overall dietary patterns and atopic diseases in childhood remain unclear. We examined associations of diet quality in early life with allergic sensitization, self-reported physician-diagnosed inhalant and food allergies, eczema, and asthma among 5225 children participating in a population-based cohort in the Netherlands. Diet was assessed during pregnancy, infancy, and childhood using validated food-frequency questionnaires. We calculated food-based diet quality scores (0–10 or 0–15), reflecting adherence to dietary guidelines. At age 10 years, allergic sensitization was assessed with skin prick tests. Information on physician-diagnosed inhalant and food allergies, eczema, and asthma was obtained with questionnaires. We observed no associations between diet quality during pregnancy and allergic sensitization (odds ratio (OR) = 1.05 per point in the diet score, 95% confidence interval (CI): 0.99, 1.13), allergies (0.96, 95% CI: 0.88, 1.04), eczema (0.99, 95% CI: 0.93, 1.06), or asthma (0.93, 95% CI: 0.85, 1.03) in childhood. Also, diet quality in infancy or childhood were not associated with atopic outcomes in childhood. Our findings do not support our hypothesis that a healthy dietary pattern in early life is associated with a lower risk of allergic sensitization or atopic diseases in childhood.
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Affiliation(s)
- Anh N Nguyen
- Department of Epidemiology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- The Generation R Study Group, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Niels J Elbert
- The Generation R Study Group, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- Department of Dermatology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Suzanne G M A Pasmans
- Department of Dermatology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Jessica C Kiefte-de Jong
- Department of Epidemiology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- Department of Pediatrics, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- Department of Global Public Health, Leiden University College, 3595 DG The Hague, The Netherlands.
| | - Nicolette W de Jong
- Department of Internal Medicine, Division of Allergology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Henriëtte A Moll
- Department of Pediatrics, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Vincent W V Jaddoe
- Department of Epidemiology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- The Generation R Study Group, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- Department of Pediatrics, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Johan C de Jongste
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Oscar H Franco
- Department of Epidemiology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Liesbeth Duijts
- Department of Pediatrics, Division of Respiratory Medicine and Allergology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
- Department of Pediatrics, Division of Neonatology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
| | - Trudy Voortman
- Department of Epidemiology, Erasmus MC, University Medical Center, 3000 CA Rotterdam, The Netherlands.
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Carr WW, Yawn BP. Management of allergic rhinitis in the era of effective over-the-counter treatments. Postgrad Med 2017; 129:572-580. [PMID: 28532204 DOI: 10.1080/00325481.2017.1333384] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Allergic rhinitis (AR) may be regarded as a trivial issue unworthy of the doctor's time, and with the availability of many different over-the-counter (OTC) treatments, up to two thirds of patients self-manage AR before seeking medical care. Yet, AR can have a significant impact on health-related quality of life and is associated with a greater detriment to work productivity than other chronic diseases such as diabetes and hypertension. For many patients, the impact on quality of life is greater than suggested by reported symptoms and should also be a focus of treatment. Although many patients can effectively manage AR symptoms independently, a significant percentage will need direction from a physician to obtain optimal results. The availability of several different classes of treatment - including decongestants, sedating and non-sedating antihistamines, and more recently intranasal corticosteroids (INS) - has increased the complexity of self-management, leaving patients confused about the best approach to treatment. Treatment guidelines universally classify INS as the most effective medical agents available for use in the OTC and primary care settings. Many patients are unaware that INS are available OTC and that they are more effective than other therapies. Patients may have negative perceptions about the safety of INS and may have experienced unpleasant taste, scent, and feel with nasal sprays. Unless a patient volunteers the information, healthcare professionals (HCPs) may be unaware that the patient has significant AR and is using one or more OTC AR therapies. To address this gap in communication, HCPs must be proactive in identifying, assessing, and advising patients with AR, including best strategies to assess allergen trigger symptoms, which treatments are appropriate, and when and how to use them. Proper use of delivery devices is especially important. This article reviews the primary care management of AR in the context of the availability of effective OTC medicines.
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Affiliation(s)
- Warner W Carr
- a Physician, Allergy & Asthma Associates of Southern California, A Medical Group , Southern California Research , Mission Viejo , CA , USA
| | - Barbara P Yawn
- b Department of Family and Community Health , University of Minnesota , Minneapolis , MN , USA
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Aramaki E, Shikata S, Ayaya S, Kumagaya SI. Crowdsourced Identification of Possible Allergy-Associated Factors: Automated Hypothesis Generation and Validation Using Crowdsourcing Services. JMIR Res Protoc 2017; 6:e83. [PMID: 28512079 PMCID: PMC5449648 DOI: 10.2196/resprot.5851] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Revised: 10/31/2016] [Accepted: 03/23/2017] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Hypothesis generation is an essential task for clinical research, and it can require years of research experience to formulate a meaningful hypothesis. Recent studies have endeavored to apply crowdsourcing to generate novel hypotheses for research. In this study, we apply crowdsourcing to explore previously unknown allergy-associated factors. OBJECTIVE In this study, we aimed to collect and test hypotheses of unknown allergy-associated factors using a crowdsourcing service. METHODS Using a series of questionnaires, we asked crowdsourcing participants to provide hypotheses on associated factors for seven different allergies, and validated the candidate hypotheses with odds ratios calculated for each associated factor. We repeated this abductive validation process to identify a set of reliable hypotheses. RESULTS We obtained two primary findings: (1) crowdsourcing showed that 8 of the 13 known hypothesized allergy risks were statically significant; and (2) among the total of 157 hypotheses generated by the crowdsourcing service, 75 hypotheses were statistically significant allergy-associated factors, comprising the 8 known risks and 53 previously unknown allergy-associated factors. These findings suggest that there are still many topics to be examined in future allergy studies. CONCLUSIONS Crowdsourcing generated new hypotheses on allergy-associated factors. In the near future, clinical trials should be conducted to validate the hypotheses generated in this study.
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Affiliation(s)
- Eiji Aramaki
- Social Computing Lab, Graduate School of Information Science, Nara Institute of Science and Technology, Ikoma, Japan
| | - Shuko Shikata
- Social Computing Lab, Graduate School of Information Science, Nara Institute of Science and Technology, Ikoma, Japan
| | - Satsuki Ayaya
- Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
| | - Shin-Ichiro Kumagaya
- Research Center for Advanced Science and Technology, University of Tokyo, Tokyo, Japan
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Atiim GA, Elliott SJ. The Global Epidemiologic Transition: Noncommunicable Diseases and Emerging Health Risk of Allergic Disease in Sub-Saharan Africa. HEALTH EDUCATION & BEHAVIOR 2017; 43:37S-55S. [PMID: 27037146 DOI: 10.1177/1090198115606918] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Globally, there has been a shift in the causes of illness and death from infectious diseases to noncommunicable diseases. This changing pattern has been attributed to the effects of an (ongoing) epidemiologic transition. Although researchers have applied epidemiologic transition theory to questions of global health, there have been relatively few studies exploring its relevance especially in the context of emerging allergic disorders in sub-Saharan Africa (SSA). In this article, we address the growing burden of noncommunicable diseases in sub-Saharan Africa through the lens of epidemiologic transition theory. After a brief review of the literature on the evolution of the epidemiologic transition with a particular emphasis on sub-Saharan Africa, we discuss existing frameworks designed to help inform our understanding of changing health trends in the developing world. We subsequently propose a framework that privileges "place" as a key construct informing our understanding. In so doing, we use the example of allergic disease, one of the fastest growing chronic conditions in most parts of the world.
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Affiliation(s)
- George A Atiim
- Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada
| | - Susan J Elliott
- Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, Canada
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50
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Kimura S, Tung YC, Pan MH, Su NW, Lai YJ, Cheng KC. Black garlic: A critical review of its production, bioactivity, and application. J Food Drug Anal 2016; 25:62-70. [PMID: 28911544 PMCID: PMC9333422 DOI: 10.1016/j.jfda.2016.11.003] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Revised: 11/07/2016] [Accepted: 11/07/2016] [Indexed: 12/11/2022] Open
Abstract
Black garlic is obtained from fresh garlic (Allium sativum L.) that has been fermented for a period of time at a controlled high temperature (60–90°C) under controlled high humidity (80–90%). When compared with fresh garlic, black garlic does not release a strong offensive flavor owing to the reduced content of allicin. Enhanced bioactivity of black garlic compared with that of fresh garlic is attributed to its changes in physicochemical properties. Studies concerning the fundamental findings of black garlic, such as its production, bioactivity, and applications, have thus been conducted. Several types of black garlic products are also available in the market with a fair selling volume. In this article, we summarize the current knowledge of changes in the components, bioactivity, production, and applications of black garlic, as well as the proposed future prospects on their possible applications as a functional food product.
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Affiliation(s)
- Shunsuke Kimura
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan, ROC
| | - Yen-Chen Tung
- Graduate Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan, ROC
| | - Min-Hsiung Pan
- Graduate Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan, ROC
| | - Nan-Wei Su
- Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan, ROC
| | - Ying-Jang Lai
- Department of Food Science, National Quemoy University, Quemoy County, Taiwan, ROC.
| | - Kuan-Chen Cheng
- Institute of Biotechnology, National Taiwan University, Taipei, Taiwan, ROC; Graduate Institute of Food Science Technology, National Taiwan University, Taipei, Taiwan, ROC; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan, ROC.
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