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Chen C, Li J, Chen Y, Gao Q, Li N, Le S. The correlation of asparaginase enzyme activity levels after PEG-asparaginase administration with clinical characteristics and adverse effects in Chinese paediatric patients with acute lymphoblastic leukaemia. Br J Haematol 2024; 205:624-633. [PMID: 38934331 DOI: 10.1111/bjh.19605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
Studies on asparaginase enzyme activity (AEA) monitoring in Chinese patients receiving PEG-asparaginase remain limited. We monitored AEA in paediatric patients diagnosed with acute lymphoblastic leukaemia (ALL) and treated according to the Chinese Children's Cancer Group study protocols, CCCG-ALL-2015/CCCG-ALL-2020 protocols. We measured the AEA at days 7 ± 1 and 14 ± 1 and analysed their association with patient characteristics and PEG-asparaginase-related adverse effects (AEs). We measured 2147 samples from 329 patients. Mean AEA levels (interquartile range) were 931 iu/L (654-1174 iu/L) at day 7 ± 1 and 664 iu/L (463-860 iu/L) at day 14 ± 1. The AEA levels were higher in younger children and increased with the cumulative dose numbers. PEG-asparaginase inactivation rate was 19.1%, and the silent inactivation (SI) rate was 12.5%. Nine patients were identified with allergic-like reactions. Hypofibrinogenaemia, hypertriglyceridaemia, pancreatitis and thrombosis were associated with older age, whereas hypoglycaemia was associated with younger age. The risk of hypertriglyceridaemia and hypoglycaemia increased with cumulative dose numbers of PEG-asparaginase. Except for hypofibrinogenaemia, elevated AEA levels did not increase the risk of PEG-asparaginase-related AEs. Drug monitoring can be utilized as guidance for treatment decision-making. Individualizing asparaginase doses do not reduce toxicities. The treatment target of PEG-asparaginase remains to achieve sustained and adequate activity.
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Affiliation(s)
- Cai Chen
- Department of Pediatric Hematology, Fujian Medical University, Union Hospital, Fuzhou, China
| | - Jian Li
- Department of Pediatric Hematology, Fujian Medical University, Union Hospital, Fuzhou, China
| | - Yiqiao Chen
- Department of Pediatric Hematology, Fujian Medical University, Union Hospital, Fuzhou, China
| | - Qinli Gao
- Department of Pediatric Hematology, Fujian Medical University, Union Hospital, Fuzhou, China
| | - Nainong Li
- Fujian Institute of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Shaohua Le
- Department of Pediatric Hematology, Fujian Medical University, Union Hospital, Fuzhou, China
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2
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Fang H, Li J, Wen X, Ren L, Liu E. Next-generation reference interval for total IgE in the United States: A retrospective real-world analysis. Clin Chim Acta 2024:119895. [PMID: 39074651 DOI: 10.1016/j.cca.2024.119895] [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: 06/10/2024] [Revised: 07/24/2024] [Accepted: 07/26/2024] [Indexed: 07/31/2024]
Abstract
OBJECTIVE To establish a next-generation reference interval (RI) for total IgE (tIgE) and evaluate its usefulness. METHODS A new allergen-specific IgE (sIgE)-based tIgE RI, including a continuous RI in children, was established using the NHANES 2005-2006 project. The usefulness of the RI was evaluated by sensitivity (Sen), specificity (Spec), positive predictive value (PPV), negative predictive value (NPV), κ coefficient and consistency. RESULTS The new tIgE RI showed better performance in identifying allergic sensitization (Sen 0.53, Spec 0.90, PPV 0.83, NPV 0.68, κ 0.44, consistency 0.72) than allergic diseases (Sen 0.37, Spec 0.75, PPV 0.55, NPV 0.60, κ 0.13, consistency 0.59). The 2014 U.S. tIgE RI was more effective in identifying allergic diseases (consistency 0.63 vs. 0.54, P<0.001) but less accurate in identifying allergic sensitization (consistency 0.59 vs. 0.67, P<0.001) in children than in adults. The new RI improved the accuracy of identifying allergic sensitization in children to a level similar to that in adults (consistency 0.72 vs 0.73, P=0.37) and maintained its advantage in identifying allergic diseases in children (consistency 0.64 vs 0.55, P<0.001). CONCLUSIONS The established next-generation tIgE RI is useful for identifying allergic sensitization, especially in children.
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Affiliation(s)
- Heping Fang
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, China
| | - Juan Li
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, China
| | - Xiang Wen
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, China
| | - Luo Ren
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, China.
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatric Metabolism and Inflammatory Diseases, China.
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3
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Zhang P, Zheng Z, Sun H, Gao T, Xiao X. A review of common influencing factors and possible mechanisms associated with allergic diseases complicating tic disorders in children. Front Pediatr 2024; 12:1360420. [PMID: 38957776 PMCID: PMC11218626 DOI: 10.3389/fped.2024.1360420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 05/31/2024] [Indexed: 07/04/2024] Open
Abstract
Over the past few decades, the incidence of childhood allergic diseases has increased globally, and their impact on the affected child extends beyond the allergy itself. There is evidence of an association between childhood allergic diseases and the development of neurological disorders. Several studies have shown a correlation between allergic diseases and tic disorders (TD), and allergic diseases may be an important risk factor for TD. Possible factors influencing the development of these disorders include neurotransmitter imbalance, maternal anxiety or depression, gut microbial disorders, sleep disturbances, maternal allergic status, exposure to tobacco, and environmental factors. Moreover, gut microbial disturbances, altered immunological profiles, and DNA methylation in patients with allergic diseases may be potential mechanisms contributing to the development of TD. An in-depth investigation of the relationship between allergic diseases and TD in children will be important for preventing and treating TD.
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Affiliation(s)
- Panpan Zhang
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Zhimin Zheng
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Hao Sun
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Tieying Gao
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
| | - Xuwu Xiao
- Department of Child Health, Dalian Municipal Women and Children’s Medical Center (Group), Dalian, Liaoning, China
- Dalian Medical University, Dalian, Liaoning, China
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4
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Yang F, Zhang X, Xie Y, Yuan J, Gao J, Chen H, Li X. The pathogenesis of food allergy and protection offered by dietary compounds from the perspective of epigenetics. J Nutr Biochem 2024; 128:109593. [PMID: 38336123 DOI: 10.1016/j.jnutbio.2024.109593] [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: 08/23/2023] [Revised: 01/23/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Food allergy is a global food safety concern, with an increasing prevalence in recent decades. However, the immunological and cellular mechanisms involved in allergic reactions remain incompletely understood, which impedes the development of effective prevention and treatment strategies. Current evidence supports those epigenetic modifications regulate the activation of immune cells, and their dysregulation can contribute to the development of food allergies. Patients with food allergy show epigenetic alterations that lead to the onset, duration and recovery of allergic disease. Moreover, many preclinical studies have shown that certain dietary components exert nutriepigenetic effects in changing the course of food allergies. In this review, we provide an up-to-date overview of DNA methylation, noncoding RNA and histone modification, with a focus on their connections to food allergies. Following this, we discuss the epigenetic mechanisms that regulate the activation and differentiation of innate and adapted immune cell in the context of food allergies. Subsequently, this study specifically focuses on the multidimensional epigenetic effects of dietary components in modulating the immune response, which holds promise for preventing food allergies in the future.
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Affiliation(s)
- Fan Yang
- State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Xing Zhang
- State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Yanhai Xie
- Sino-German Joint Research Institute, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Juanli Yuan
- State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; School of Pharmacy, Jiangxi Medical College, Nanchang University, Nanchang 330047, China
| | - Jinyan Gao
- State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Hongbing Chen
- Sino-German Joint Research Institute, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China
| | - Xin Li
- State Key Laboratory of Food Science and Resources, College of Food Science and Technology, Nanchang University, Nanchang 330047, China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang 330047, China.
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5
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Li Q, Deng Y, Xu Z, Zhou H. Combined transcriptomics and TMT-proteomics reveal abnormal complement and coagulation cascades in cow's milk protein allergy. Int Immunopharmacol 2024; 131:111806. [PMID: 38457985 DOI: 10.1016/j.intimp.2024.111806] [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: 01/04/2024] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Cow's milk protein allergy (CMPA) is primarily due to the inability of the intestinal mucosa to establish typical immunological tolerance to proteins found in cow's milk, and the specific molecular mechanism is still unclear. In order to investigate molecular alterations in intestinal tissues during CMPA occurrence, this study analyzed the jejunal tissue of β-lactoglobulin (BLG)-sensitized mice through transcriptomics and quantitative tandem mass tag (TMT)-labeled proteomics. A total of 475 differentially expressed genes (256 up-regulated, 219 down-regulated) and 94 differentially expressed proteins (65 up-regulated, 29 down-regulated) were identified. Comparing the KEGG pathways of the two groups, it was found that both were markedly enriched in the signaling pathways of complement and coagulation cascade. Among these, kallikrein B1 (KLKB1) in this pathway is speculated to be pivotal in CMPA. It may potentially enhance the release of bradykinin by activating the kallikrein-kinin system, leading to pro-inflammatory effects and exacerbating intestinal mucosal damage. This study suggests that the pathways of complement and coagulation cascades could be significant in the context of intestinal immunity in CMPA, and KLKB1 may be its potential therapeutic target.
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Affiliation(s)
- Qunchao Li
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China
| | - Yan Deng
- School of Medicine, Anhui University of Science and Technology, Huainan, China
| | - Zhiwei Xu
- Bengbu Medical College, Bengbu, China
| | - Haoquan Zhou
- Department of Pediatrics, Provincial Hospital Affiliated to Anhui Medical University, Hefei, China.
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6
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Lee ECK, Trogen B, Brady K, Ford LS, Wang J. The Natural History and Risk Factors for the Development of Food Allergies in Children and Adults. Curr Allergy Asthma Rep 2024; 24:121-131. [PMID: 38416390 PMCID: PMC10960768 DOI: 10.1007/s11882-024-01131-3] [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: 01/31/2024] [Indexed: 02/29/2024]
Abstract
PURPOSE OF REVIEW This narrative review explores food allergy prevalence and natural history stratified by life stages, especially in context of evolving knowledge over the last few decades. RECENT FINDINGS The prevalence of food allergy remains highest in early childhood with common food triggers being cow's milk, soy, hen's egg, wheat, peanut, tree nuts, sesame, fish, and shellfish. This correlates with certain risk factors especially pertinent in the postnatal period which appear to predispose an individual to developing a food allergy. Some allergies (such as milk and egg) were previously thought to be easily outgrown in early life; however, recent studies suggest increasing rates of persistence of these allergies into young adulthood; the reason behind this is unknown. Despite this, there is also evidence demonstrating that food allergies can be outgrown in adolescents and adults. An understanding of the paradigm shifts in the natural history of food allergy allows clinicians to provide updated, age-appropriate, and tailored advice for patients on the management and prognosis of food allergy.
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Affiliation(s)
- Eric C K Lee
- The Children's Hospital at Westmead, Locked Bag 4001, Westmead, NSW, 2145, Australia
| | - Brit Trogen
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, USA
| | - Kathryn Brady
- Department of Pediatrics, New York-Presbyterian Hospital/Weill Cornell Medical Center, New York, USA
| | - Lara S Ford
- The Children's Hospital at Westmead, Locked Bag 4001, Westmead, NSW, 2145, Australia.
- Sydney Medical School, The University of Sydney, The University of Sydney, NSW, 2006, Australia.
| | - Julie Wang
- Jaffe Food Allergy Institute, Icahn School of Medicine at Mount Sinai, New York, USA
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7
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Huang M, Shao H, Zhang X, Yang F, Wang J, Tan S, Chen H, Li X. Comparison of cow's milk allergy models highlighted higher humoral and Th2 immune responses in BALB/c than C3H/HeNCrl mice. Food Chem Toxicol 2024; 184:114315. [PMID: 38081529 DOI: 10.1016/j.fct.2023.114315] [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: 09/10/2023] [Revised: 11/09/2023] [Accepted: 11/28/2023] [Indexed: 12/25/2023]
Abstract
Cow's milk allergy (CMA) is common in early childhood and the incidence is increasing. However, its mechanisms of action are still not fully understood due to the range of different clinical symptoms. So far, the development of different mouse models has been the best choice to study the molecular mechanisms triggering allergy. However, the selection of suitable strains for the establishment of animal models truly representative of associated human pathologies is still a challenge. Hence, we focused on both C3H/HeNCrl and BALB/c mice to characterize their susceptibility to CMA. After intraperitoneal sensitization, BALB/c and C3H/HeNCrl strains were challenged with β-lactoglobulin (BLG), and compared in allergic symptoms and active immune response, which assessed by specific antibody production and cytokine release. At first, both groups exhibited anaphylaxis, showed specific BLG-related IgE, Th2 response and seemed both suitable for the development of CMA models. However, a detailed analysis revealed that BALB/c had both stronger humoral and Th2 immune responses, producing more antibodies (IgE and IgG/IgG1/IgG2a), and releasing higher levels of Th2-associated cytokines (IL-4, IL-5, IL-13) compared to C3H/HeNCrl mice. Therefore, BALB/c strain would represent a preferential choice in the establishment of CMA models. This study highlights the subtle differences and major outcomes in the selection of mouse strains for the development of suitable food allergy models.
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Affiliation(s)
- Meijia Huang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science, Henan Institute of Science and Technology, Xinxiang, 453003, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Huming Shao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Xing Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Fan Yang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Jingshu Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Shuijie Tan
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China
| | - Hongbing Chen
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, Jiangxi, PR China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, 330047, Jiangxi, PR China
| | - Xin Li
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, 330047, Jiangxi, PR China; School of Food Science and Technology, Nanchang University, Nanchang, 330031, Jiangxi, PR China; Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, 330047, Jiangxi, PR China.
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8
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Wu C, Tang H, Wei J, Chen H, Zhao Z, Norbäck D, Zhang X, Lu C, Yu W, Wang T, Zheng X, Li R, Zhang Y, Zhang L. Modification of Food Allergy on the Associations between Early Life Exposure to Size-Specific Particulate Matter and Childhood Allergic Rhinitis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1813-1822. [PMID: 38237043 DOI: 10.1021/acs.est.3c05532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
Previous studies have reported the association between particulate matter (PM) and childhood allergic rhinitis (AR). However, it is unclear whether food allergy (FA) modifies the PM-AR association. We aimed at evaluating the effect of the modification of FA on PM-AR association in preschool children. We adopted a cross-sectional study and conducted a questionnaire survey among preschool children aged 3-6 years in 7 cities in China from June 2019 to June 2020 to collect information on AR and FA. We used a combination of multilevel logistic regression and restricted cubic spline functions to quantitatively assess whether FA modifies the associations between size-specific PM exposure (1 × 1 km) and the risk of AR. The adjusted odds ratios (ORs) for AR among the children with FA as per a 10 μg/m3 increase in early life PM1, PM2.5, and PM10 were significantly higher than the corresponding ORs among the children without FA [e.g., OR: 1.58, 95% CI: (1.32, 1.90) vs 1.29, 95% CI: (1.18, 1.41), per 10 μg/m3 increase in PM1]. The interactions between FA and size-specific PM exposure and their effects on AR were statistically significant (all p-int < 0.001). FA, as an important part of the allergic disease progression, may modify the PM-AR association in preschool children.
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Affiliation(s)
- Chuansha Wu
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Haoran Tang
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jing Wei
- Department of Atmospheric and Oceanic Science, Earth System Science Interdisciplinary Center, University of Maryland, College Park, Maryland 20740, United States
| | - Hao Chen
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Zhuohui Zhao
- Department of Environmental Health, School of Public Health, Fudan University, Shanghai 200030, China
| | - Dan Norbäck
- Department of Medical Sciences, Uppsala University, Uppsala SE 75185, Sweden
| | - Xin Zhang
- Research Centre for Environmental Science and Engineering, Shanxi University, Taiyuan 030006, China
| | - Chan Lu
- Department of Occupational and Environmental Health, School of Public Health, Xiangya Medical College, Central South University, Changsha 410078, China
| | - Wei Yu
- Joint International Research Laboratory of Green Buildings and Built Environments (Ministry of Education), Chongqing University, Chongqing 400045, China
| | - Tingting Wang
- School of Nursing and Health Management, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Xiaohong Zheng
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Rui Li
- Hubei Key Laboratory of Genetic Regulation and Integrative Biology, School of Life Sciences, Central China Normal University, Wuhan 430079, China
| | - Yunquan Zhang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
- Department of Epidemiology and Biostatistics, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Ling Zhang
- Department of Environmental Hygiene and Occupational Medicine, School of Public Health, Wuhan University of Science and Technology, Wuhan 430065, China
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan 430065, China
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9
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Yang Y, Li W, Zhu R. Allergen immunotherapy in China. FRONTIERS IN ALLERGY 2024; 4:1324844. [PMID: 38260178 PMCID: PMC10801290 DOI: 10.3389/falgy.2023.1324844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Allergen immunotherapy (AIT) is an etiological treatment strategy that involves administering escalating doses of clinically relevant allergens to desensitize the immune system. It has shown encouraging results in reducing allergy symptoms and enhancing patients' quality of life. In this review, we offer a thorough overview of AIT in China, examining its efficacy, safety, current practices, and prospects. We further underscore the progress made in AIT research and clinical applications, as well as the distinct challenges and opportunities that China faces in this area.
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Affiliation(s)
- Yaqi Yang
- Department of Allergy, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Wenjing Li
- Department of Allergy, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Rongfei Zhu
- Department of Allergy, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
- Institute of Allergy and Clinical Immunology, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
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10
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Xu Y, Zhang F, Mu G, Zhu X. Effect of lactic acid bacteria fermentation on cow milk allergenicity and antigenicity: A review. Compr Rev Food Sci Food Saf 2024; 23:e13257. [PMID: 38284611 DOI: 10.1111/1541-4337.13257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 09/22/2023] [Accepted: 10/02/2023] [Indexed: 01/30/2024]
Abstract
Cow milk is a major allergenic food. The potential prevention and treatment effects of lactic acid bacteria (LAB)-fermented dairy products on allergic symptoms have garnered considerable attention. Cow milk allergy (CMA) is mainly attributed to extracellular and/or cell envelope proteolytic enzymes with hydrolysis specificity. Numerous studies have demonstrated that LAB prevents the risk of allergies by modulating the development and regulation of the host immune system. Specifically, LAB and its effectors can enhance intestinal barrier function and affect immune cells by interfering with humoral and cellular immunity. Fermentation hydrolysis of allergenic epitopes is considered the main mechanism of reducing CMA. This article reviews the linear epitopes of allergens in cow milk and the effect of LAB on these allergens and provides insight into the means of predicting allergenic epitopes by conventional laboratory analysis methods combined with molecular simulation. Although LAB can reduce CMA in several ways, the mechanism of action remains partially clarified. Therefore, this review additionally attempts to summarize the main mechanism of LAB fermentation to provide guidance for establishing an effective preventive and treatment method for CMA and serve as a reference for the screening, research, and application of LAB-based intervention.
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Affiliation(s)
- Yunpeng Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, P. R. China
| | - Feifei Zhang
- Liaoning Ocean and Fisheries Science Research Institute, Dalian, Liaoning, P. R. China
| | - Guangqing Mu
- Dalian Key Laboratory of Functional Probiotics, Dalian, Liaoning, P. R. China
| | - Xuemei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning, P. R. China
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11
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Huang KY, Liang BS, Zhang XY, Chen H, Ma N, Lan JL, Li DY, Zhou ZW, Yang M. Molecular characterization of Clostridium perfringens isolates from a tertiary children's hospital in Guangzhou, China, establishing an association between bacterial colonization and food allergies in infants. Gut Pathog 2023; 15:47. [PMID: 37807056 PMCID: PMC10561448 DOI: 10.1186/s13099-023-00572-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023] Open
Abstract
BACKGROUND Cow's milk protein allergy (CMPA) is one of the most common types of food allergy in infants. Faecal pathogen cultures showed that the positive rate of Clostridium perfringens was more than 30%, which was significantly higher than that for other bacteria. Therefore, it is speculated that Clostridium perfringens colonization may be one of the pathogenetic factors for CMPA in infants. We conducted a real-world evidence study. Infants aged 0-6 months with diarrhoea and mucoid and/or bloody stools were recruited from a large tertiary hospital in China. Faecal pathogen cultures for the detection of Clostridium perfringens were confirmed by flight mass spectrometry, and potential toxin genes were identified using PCR. After 12 months of follow-up, the diagnoses of CMPA and food allergy were recorded. The correlation was assessed by Pearson correlation analysis. RESULTS In this study, 358 infants aged 0-6 months with gastrointestinal symptoms and faecal pathogen cultures were recruited. A total of 270 (44.07% girls; mean age, 2.78 ± 2.84 months) infants were followed up for 12 months. Overall, the rate of positivity for Clostridium perfringens in faecal pathogen cultures was 35.75% (128/358) in infants aged ≤ 6 months. The earliest Clostridium perfringens colonization was detected within 2 days after birth. The majority of Clostridium perfringens isolates were classified as type C in 85 stool samples. In the Clostridium perfringens-positive group, 48.21% (54/112) of infants were clinically diagnosed with food allergies after 12 months, including 37.5% (42/112) with CMPA, which was significantly higher than that of the negative group, with 7.59% (12/158) exhibiting food allergies and 5.06% (8/158) presenting CMPA (P < 0.0001). Faecal Clostridium perfringens positivity was significantly correlated with CMPA, food allergy, faecal occult blood, faecal white blood cells, antibiotic use, increased peripheral blood platelet counts, and decreased haemoglobin levels (P < 0.0001). CONCLUSIONS This study demonstrates that intestinal colonization by Clostridium perfringens is common in infants. The majority of Clostridium perfringens isolates are classified as type C. Colonization of the intestine by Clostridium perfringens is associated with the development of CMPA and food allergy in infants.
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Affiliation(s)
- Kun-Yi Huang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
- Department of Pediatrics, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Bing-Shao Liang
- Guangdong Provincial Clinical Research Center for Child Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Xiao-Yan Zhang
- Department of Pediatrics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Huan Chen
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Ni Ma
- Department of Pediatrics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Jiao-Li Lan
- Department of Pediatrics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Ding-You Li
- Division of Gastroenterology, Children's Mercy Hospital, University of Missouri Kansas City School of Medicine, Kansas City, USA
| | - Zhen-Wen Zhou
- Clinical Laboratory, Longgang Maternity and Child Institute of Shantou University Medical College (Longgang District Maternity & Child Healthcare Hospital of Shenzhen City), Shenzhen, China.
| | - Min Yang
- Department of Gastroenterology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.
- Department of Pediatrics, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China.
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Belmabrouk S, Abdelhedi R, Bougacha F, Bouzid F, Gargouri H, Ayadi I, Abdelmoula NB, Abdelmoula B, Abdellaoui N, BenMarzoug R, Triki N, Torjmen M, Kharrat M, Jmaiel M, Kharrat N, Rebai A. Prevalence of self-reported food allergy in Tunisia: General trends and probabilistic modeling. World Allergy Organ J 2023; 16:100813. [PMID: 37811397 PMCID: PMC10558849 DOI: 10.1016/j.waojou.2023.100813] [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: 12/29/2022] [Revised: 08/20/2023] [Accepted: 08/22/2023] [Indexed: 10/10/2023] Open
Abstract
Background Food allergy (FA) has become a major public health concern affecting millions of children and adults worldwide. In Tunisia, published data on FA are scarce. Methods This study, was intended to fill the gap and estimate the frequency of allergy to different foods in the Sfax region, Tunisia, within self-reported FA. One hundred twenty-five (125) children (56% males, 1-17 years old), and 306 adults (17% males, 18-70 years old) were interviewed using a bilingual questionnaire. Results The number of self-reported food allergens in this sample was 105; allergens were clustered in 8 foods: fruits, seafood, eggs, milk and dairy, cereals, nuts, vegetables, and peanuts. Cutaneous reactions were the most frequent symptoms, in both children and adults. About 40% of children and 30% of adults had a family history of FA. About 81% of adults and 38% of children are allergic to at least 1 non-food allergen. The most prevalent food allergen was the fruit group in both adults and children, followed by seafood. Most food allergies were mutually exclusive and 90% of individuals have a single FA. The relationship between self-declared FA was modeled using a Bayesian network graphical model in order to estimate conditional probabilities of each FA when other FA is present. Conclusions Our findings suggest that the prevalence of self-reported FA in Tunisia depends on dietary habits and food availability since the most frequent allergens are from foods that are highly consumed by the Tunisian population.
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Affiliation(s)
- Sabrine Belmabrouk
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Rania Abdelhedi
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Fadia Bougacha
- National Institute of Statistics, 70, Ech-cham Road, P.O Box 265 CEDEX. Tunis, Tunisia
| | - Fériel Bouzid
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Héla Gargouri
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Imen Ayadi
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
- Faculty of Sciences of Sfax, La Soukra Road km 4 - BP 1171-3000, Sfax, Tunisia
| | - Nouha Bouayed Abdelmoula
- Genomics of Signalopathies at The Service of Medicine, Medical University of Sfax, Majida Boulila Road, Tunisia
| | - Balkiss Abdelmoula
- Genomics of Signalopathies at The Service of Medicine, Medical University of Sfax, Majida Boulila Road, Tunisia
| | - Nawel Abdellaoui
- Genomics of Signalopathies at The Service of Medicine, Medical University of Sfax, Majida Boulila Road, Tunisia
| | - Riadh BenMarzoug
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Nersrine Triki
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Mouna Torjmen
- ReDCAD, National Engineering School of Sfax, La Soukra Road km4, 3038, Sfax, Tunisia
| | - Mohamed Kharrat
- Faculty of Sciences of Sfax, La Soukra Road km 4 - BP 1171-3000, Sfax, Tunisia
| | - Mohamed Jmaiel
- ReDCAD, National Engineering School of Sfax, La Soukra Road km4, 3038, Sfax, Tunisia
| | - Najla Kharrat
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
| | - Ahmed Rebai
- Laboratory of Screening Cellular and Molecular Process, Center of Biotechnology of Sfax, Sidi Mansour Road km 7, P.O Box 1177, 3018, Sfax, Tunisia
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13
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Xiong Z, Wang W, Ma X, Zhang X, Wu Z, Yang A, Wu Y, Meng X, Chen H, Li X. Development of a Two-Step Hydrolysis Hypoallergenic Cow's Milk Formula and Evaluation of Residue Allergenicity by Peptidomics and Immunoreactivity Analysis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12237-12249. [PMID: 37531557 DOI: 10.1021/acs.jafc.3c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Cow's milk allergy (CMA) is an abnormal immune response that severely affects the nutritional supplementation of allergic infants. Currently, only a limited number of hypoallergenic formulas are available on the market, and these are only categorized according to their degree of hydrolysis, which still poses an allergy risk and cannot be consumed by CMA patients, especially infants. To address this issue, we developed a two-step hydrolysis hypoallergenic formula targeting destruction of allergen epitope from whey protein. Then, a comprehensive evaluation system was constructed, including peptidomics analysis, in vivo and in vitro allergenicity assessments, revealing allergic changes in the product from the epitope structure level to the immunological level. The results showed that 97.14% of hydrolyzed peptides from α-lactalbumin and β-lactoglobulin did not contain allergenic epitopes after treatment with trypsin and flavourzyme. In vitro and in vivo allergenicity assessment results confirmed that the two-step hydrolysis method effectively reduced the allergenicity of whey protein. Compared with the common milk powder, the hypoallergenic formula induced lower levels of basophil degranulation and relieved the body's anaphylactic symptoms caused by cow milk. This study provides a promising solution to the limited hypoallergenic formula problem and may benefit allergic infants who require nutritional supplements.
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Affiliation(s)
- Ziyi Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Wenjie Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xin Ma
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xing Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Zhihua Wu
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Anshu Yang
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Yong Wu
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xuanyi Meng
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Hongbing Chen
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Sino-German Joint Research Institute, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Xin Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- School of Food Science and Technology, Nanchang University, Nanchang, Jiangxi 330047, P. R. China
- Jiangxi Province Key Laboratory of Food Allergy, Nanchang University, Nanchang, Jiangxi 330047, China
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14
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Yang F, Zhao X, Liu W, Zhou B, Deng L, Chen H, Zhang Z, Zhou L. Positive rate of wheat allergens in the Chinese allergic population: a systematic review and meta-analysis. Sci Rep 2023; 13:10579. [PMID: 37386279 PMCID: PMC10310853 DOI: 10.1038/s41598-023-37648-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/25/2023] [Indexed: 07/01/2023] Open
Abstract
In recent years, the prevalence of allergic diseases has increased significantly, causing great concern, and wheat, as one of the top 8 food allergens, is a common allergy trigger. Nevertheless, reliable estimates of the positivity rate of wheat allergens in the allergic population in China are still lacking. The systematic review and meta-analysis aims to evaluate the positive detection rate of wheat allergens in the Chinese allergic population and further provide a reference for the prevention of allergy. CNKI, CQVIP, WAN-FANG DATA, Sino Med, PubMed, Web of Science, Cochrane Library, and Embase databases were retrieved. Related research and case reports about the positive rate of wheat allergen in the Chinese allergic population published from inception to June 30, 2022, were searched, and meta-analysis was performed using Stata software. The pooled positive rate of wheat allergens and 95% confidence interval were calculated by random effect models, and the publication bias was evaluated using Egger's test. A total of 13 articles were included for the final meta-analysis, in which wheat allergen detection methods involved only serum sIgE testing and SPT assessment. The results showed that the wheat allergen positivity detection rate in Chinese allergic patients was 7.30% (95% CI 5.68-8.92%). Subgroup analysis showed that the positivity rate of wheat allergens was influenced by region, but hardly by age and assessment method. The positive rates of wheat allergy in the population with allergic diseases were 2.74% (95% CI 0.90-4.58%) and 11.47% (95% CI 7.08-15.87%) in southern and northern China, respectively. In particular, the positive rates of wheat allergens were greater than 10% in Shaanxi, Henan and Nei Mongol, all of which belong to the northern region. These results suggest that wheat allergens are an important cause of sensitization in allergic populations from northern China, and therefore attention should be paid to early prevention in high-risk populations.
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Affiliation(s)
- Fengmei Yang
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China
| | - Xinyi Zhao
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China
| | - Wenfeng Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Bo Zhou
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China
| | - Lili Deng
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China
- College of Integrated Chinese and Western Medical, Liaoning University of Traditional Chinese Medicine, Shenyang, 110033, China
| | - Hongbing Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China
| | - Zhuo Zhang
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China.
| | - Lin Zhou
- School of Public Health, Shenyang Medical College, Shenyang, 110034, China.
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15
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Ma Z, Chen L, Xian R, Fang H, Chen J, Li H, Wang J, Hu Y. Changes in risk factors for food sensitization in early life: Analysis over a period of 10 years. Front Immunol 2023; 14:1153607. [PMID: 37063872 PMCID: PMC10102490 DOI: 10.3389/fimmu.2023.1153607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/17/2023] [Indexed: 04/03/2023] Open
Abstract
BackgroundAlthough epidemiological trends of childhood food sensitization (FS) in IgE-mediated food allergy were reported in China, few studies have examined at changes in its risk factors.ObjectiveTo investigate the change in early-life risk factors associated with childhood food sensitization during 2009–2019 in China.MethodsData from two cross-sectional surveys conducted in 2009 and 2019 (401 and 513 children, respectively) were analyzed. The results of skin prick tests and information on food sensitization-related risk factors in children were summarized, including family history of atopic disease (FHA), demographic characteristics, method of delivery, feeding patterns, sibship size, pet ownership, and vitamin D supplementation. Binary logistic regression was used to calculate the odds ratio and the regression coefficient β-value of risk factors in the 2009 and 2019 surveys separately. Then, coefficient β-value differences between the two surveys were analyzed by the bdiff command in STATA to describe the change in risk factors over 10 years.ResultsThe 2009 survey revealed that FHA, age, only child, and feeding patterns were associated with food sensitization. The 2019 survey showed that food sensitization was affected by age, sex, and feeding patterns. However, from 2009 to 2019, the probability of food sensitization in the only-child group significantly increased by 226.0% (β-value difference = 0.81, P = 0.024) and decreased by 65.0% in female children (β-value difference = −1.06, P = 0.008). The effect of age on food sensitization decreased by 50.0% (β-value difference = −0.69, P < 0.001) over 10 years.ConclusionThe effect of FHA and common lifestyle factors on food sensitization did not significantly change during 2009−2019. However, the influence of demographic characteristics on food sensitization has changed since 2009; that is, older age, male gender, and only child are more likely to develop food sensitization, which needs to be considered in future epidemiological surveys.Clinical Trial Registrationhttp://www.chictr.org.cn/, identifier ChiCTR1900024338.
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Affiliation(s)
- Zhuoying Ma
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Lin Chen
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Ruoling Xian
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Heping Fang
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Jing Chen
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Haiqi Li
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Juan Wang
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Yan Hu
- Department of Child Health Care, Children’s Hospital of Chongqing Medical University, Chongqing, China
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
- *Correspondence: Yan Hu,
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Feng H, Luo N, Lu Y, Lu J, Zhou J, Xiong X, Chen Z, Chen Y, Wu Y. Prevalence of parent-reported food allergy among children in China: A population-based cross-sectional survey. Front Immunol 2022; 13:982660. [PMID: 36578482 PMCID: PMC9791183 DOI: 10.3389/fimmu.2022.982660] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 11/22/2022] [Indexed: 12/14/2022] Open
Abstract
Objective The prevalence of food allergy (FA) has been increasing in recent years and has become an important public health, food safety, and clinical nutrition problem. However, population-based studies on the prevalence of FA are very limited in China. This study aims to determine the prevalence and pattern of parent-reported FA among school children in Jiangxi Province, China. Methods A multicenter cross-sectional study on FA was conducted on primary school children aged 6-11 years old using random cluster sampling with a questionnaire survey. Parent-reported FA was used and defined as individual-reported FA by parent or guardian through a questionnaire in this study. Result Among the total of 8,856 (96.36%) complete questionnaires received, 727 (8.2%) children had adverse reactions to food (ARF). The prevalence rates of parent-reported FA and doctor-diagnosed FA were 6.2% and 3.3%, respectively. Animal-derived foods were the main causative source of FA, and the three leading allergenic foods were shrimp, mango, and mollusks. Skin reactions were the most common clinical manifestations of FA, accounting for 63.7%, and 45.32% of the subjects with parent-reported FA experienced severe allergic reactions. There was a significant difference in parent-reported FA between different survey centers, and FA risk increased significantly in children with other allergic diseases (P<0.001) and small family size (P=0.026). The FA prevalence was significantly higher among children aged 8-11 years than those aged 6-7 years (P=0.020). Conclusions A high prevalence of parent-reported FA was observed among children in general primary schools in Jiangxi Province, China. Shrimp, mango, and mollusks were the most common causative foods. The main common symptoms of FA were adverse reactions relating to the skin system. The rate of severe allergic reactions was also high in Jiangxi Children with reported FA. Local standards and policies for the prevention and management of FA need to be adjusted on a timely basis according to actual local conditions.
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Affiliation(s)
- Hua Feng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China,School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Nan Luo
- School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Yuanan Lu
- Environmental Health Laboratory, Department of Public Health Sciences, University of Hawaii, Hawaii, HI, United States
| | - Justin Lu
- Environmental Health Laboratory, Department of Public Health Sciences, University of Hawaii, Hawaii, HI, United States
| | - Jiangdong Zhou
- Fengxin Center for Disease Control and Prevention, Jiangxi, Yichun, China
| | - Xiujuan Xiong
- Department of Pathology, Basic Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Zhuo Chen
- Sino German Joint Research Institute, Nanchang University, Nanchang, China
| | - Yan Chen
- Research Unit of Food Safety, Chinese Academy of Medical Sciences, National Health Commission (NHC), Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment (CFSA), Beijing, China,*Correspondence: Yongning Wu, ; Yan Chen,
| | - Yongning Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, Jiangxi, China,Research Unit of Food Safety, Chinese Academy of Medical Sciences, National Health Commission (NHC), Key Lab of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment (CFSA), Beijing, China,*Correspondence: Yongning Wu, ; Yan Chen,
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Multi-Perspective Observation on the Prevalence of Food Allergy in the General Chinese Population: A Meta-Analysis. Nutrients 2022; 14:nu14235181. [PMID: 36501216 PMCID: PMC9736235 DOI: 10.3390/nu14235181] [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: 10/07/2022] [Revised: 11/19/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Reliable estimates of the prevalence of food allergy (FA) among the general Chinese population have remained unclear. This meta-analysis aims to provide an accurate estimate of FA prevalence in China with comprehensive data. A systematic literature search was conducted in eight electronic databases, i.e., China National Knowledge Infrastructure, Wanfang, Weipu, China Biology Medicine, Web of Science, PubMed, Cochrane, and Embase. A random-effects model was used to analyze the pooled prevalence of FA for four different assessment methods. A total of 46 eligible articles were included in the narrative synthesis, and 41 articles were ultimately included in the meta-analysis. Overall, the pooled prevalence of self-reported FA, self-reported physician-diagnosed FA, SPT (specific skin prick test)-positive FA, and OFC (open food challenge)-positive FA were 11.5% (95% CI: 9.8-13.5%), 5.3% (95% CI: 4.2-6.5%), 11.6% (95% CI: 9.6-14.1%), and 6.2% (95% CI: 4.4-8.7%), respectively. Subgroup analyses suggested that the prevalence of FA was affected by age, year of data collection, region, and sample size, but not by gender. This meta-analysis indicated that FA is common among Chinese people, with an increasing trend in prevalence during the past two decades. Given the high heterogenicity between these studies, a national survey with a large sample size based on standardized diagnosis is urgently needed to gain a more scientific understanding of the actual situation of food allergy in China.
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Yin Leung AS, Tham EH, Samuel M, Munblit D, Chu DK, Dahdah L, Yamamoto-Hanada K, Trikamjee T, Warad V, van Niekerk A, Martinez S, Ellis A, Bielory L, Cuadros G, van Bever H, Wallace D, Tang M, Sublett J, Wong GWK. Quality and consistency of clinical practice guidelines on the prevention of food allergy and atopic dermatitis: Systematic review protocol. World Allergy Organ J 2022; 15:100679. [PMID: 36185546 PMCID: PMC9478906 DOI: 10.1016/j.waojou.2022.100679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 07/03/2022] [Accepted: 07/21/2022] [Indexed: 12/29/2022] Open
Abstract
Background and aims Allergy prevention strategies have gained significant traction as a means to attenuate the growing burden of allergic diseases over the past decade. As the evidence base for primary prevention of food allergy (FA) and atopic dermatitis (AD) is constantly advancing, clinical practice guideline (CPG) recommendations on interventions for FA and AD prevention vary in quality and consistency among professional organizations. We present a protocol for a systematic review of CPGs on primary prevention of FA and AD. Methods We will systematically review and appraise all CPGs addressing primary prevention of FA and AD and report our findings according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Electronic databases and manual website searches from January 2011 to March 2021 without language or geographical restrictions, and supplemented by author contact, will generate the list of potentially relevant CPGs to screen. Evaluation of the methodological quality, consistency, and global applicability of shortlisted CPGs will be performed by members of the Allergy Prevention Work Group of the World Allergy Organization (WAO) using the Appraisal of Guidelines for Research and Evaluation (AGREE) II and AGREE-REX (Recommendations EXcellence). instruments. Guideline contents, consistency, and quality of the recommendations will be summarised in tabular and narrative formats. We aim to present consolidated recommendations from international guidelines of the highest methodological quality and applicability, as determined by AGREE II and AGREE-REX. Dissemination This systematic review will provide a succinct overview of the quality and consistency of recommendations across all existing CPGs for FA and AD prevention, as well as crucial perspectives on applicability of individual recommendations in different geographical contexts. Results from this systematic review will be reported in a peer-reviewed journal. It will also inform a position statement by WAO to provide a practical framework to guide the development of future guidelines for allergy prevention worldwide. Prospero registration number CRD42021265689.
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Key Words
- AD, Atopic dermatitis
- AGREE-II, Appraisal of Guidelines for Research and Evaluation - II
- AGREE-REX, Appraisal of Guidelines for Research and Evaluation–Recommendations Excellence (AGREE-REX)
- Atopic dermatitis
- CPG, Clinical Practice Guideline
- Clinical practice guideline
- Eczema
- FA, Food allergy
- Food allergy
- ISAAC, International Study of Asthma and Allergies in Childhood
- LEAP, Learning Early About Peanut Allergy
- PRISMA, Preferred Reporting Items for Systematic Reviews and Meta-Analyses
- PROSPERO, Prospective Register of Systematic Reviews
- Primary prevention
- SR, Systematic review
- WAO, World Allergy Organization
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Affiliation(s)
- Agnes Sze Yin Leung
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Elizabeth Huiwen Tham
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore
| | - Miny Samuel
- Research Support Unit, Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Daniel Munblit
- Department of Paediatrics and Paediatric Infectious Diseases, Institute of Child's Health, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia,Inflammation, Repair and Development Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Derek K. Chu
- Departments of Medicine and Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, L8S 4L8, Canada
| | - Lamia Dahdah
- Translational Research in Pediatric Specialities Area, Division of Allergy, Bambino Gesù Children's Hospital, Rome, Italy
| | | | - Thulja Trikamjee
- Allergy and Immunology Unit, University of Cape Town Lung Institute, Cape Town, South Africa
| | - Vijay Warad
- Sai Allergy Asthma Eye Hospital, Pune, India
| | - Andre van Niekerk
- Department of Paediatrics and Child Health, School of Medicine, University of Pretoria, South Africa
| | | | - Anne Ellis
- Department of Medicine, Queen's University, and the Division of Allergy and Immunology, Kingston General Hospital, Kingston, ON, Canada
| | - Leonard Bielory
- Department of Medicine, Allergy, Immunology and Ophthalmology, Hackensack Meridian School of Medicine, Springfield, NJ, USA,Center for Environmental Prediction Rutgers University, New Brunswick, NJ, USA,Kean University, Center for Aerobiology Research, New Jersey Center for Science, Technology and Mathematics, Union, NJ, USA
| | | | - Hugo van Bever
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore,Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, Singapore
| | - Dana Wallace
- Nova Southeastern Allopathic Medical School, Fort Lauderdale, FL, USA
| | - Mimi Tang
- Allergy Immunology, Murdoch Children's Research Institute, Melbourne, Australia,Department of Paediatrics, University of Melbourne, Melbourne, Australia,Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Australia
| | - James Sublett
- Pediatric Allergy & Immunology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Gary Wing Kin Wong
- Department of Paediatrics, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China,Corresponding author. Gary W.K. Wong, Department of Paediatrics, Faculty of Medicine, Prince of Wales Hospital, Chinese University of Hong Kong, Hong Kong, China.
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19
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Bian ZY, Tu ZC, Wang H, Hu YM, Liu GX. Investigation of the Mechanism of 60Co Gamma-Ray Irradiation-Stimulated Oxidation Enhancing the Antigenicity of Ovalbumin by High-Resolution Mass Spectrometry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9477-9488. [PMID: 35881501 DOI: 10.1021/acs.jafc.2c03911] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
60Co gamma-ray irradiation-induced antigenicity changes in ovalbumin (OVA) were investigated, and the molecular mechanism was analyzed. Irradiation treatment at 0-100 kGy could significantly enhance the IgG/IgE binding ability of OVA in a dose-dependent paradigm by concomitant oxidative modification, which exhibited color browning and an increase in carbonyl content caused by high-penetrable rays. More allergenic epitopes of OVA were exposed after irradiation treatment reflected by structural changes including the unfolding of tertiary structure, the conversion of α-helix structures to β-sheet and random coil structures, and the cleavage of several peptide bonds. Meanwhile, three oxidation sites of K46, T49, and N260 located in key linear epitopes were observed, which might increase the allergenic ability of OVA via the disaggregation of noncovalent bonds and the unwinding of α-helix structures. Conclusively, irradiation may enhance the potential allergenicity of OVA by oxidative modification, which provides theoretical guidance for effectively controlling the oxidation of proteins in the irradiation process.
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Affiliation(s)
- Zhong-Yue Bian
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Zong-Cai Tu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China
- National R&D Center of Freshwater Fish Processing, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
- Engineering Research Center of Freshwater Fish High-value Utilization of Jiangxi Province, Jiangxi Normal University, Nanchang 330022, Jiangxi, China
| | - Hui Wang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Yue-Ming Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, China
| | - Guang-Xian Liu
- Institute of Food Science and Technology, Jiangxi Academy of Agricultural Sciences, Nanchang 330299, Jiangxi, China
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20
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Mehta S, Allen HI, Campbell DE, Arntsen KF, Simpson MR, Boyle RJ. Trends in use of specialised formula for managing cow's milk allergy in young children. Clin Exp Allergy 2022; 52:839-847. [PMID: 35643986 DOI: 10.1111/cea.14180] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/17/2022] [Accepted: 05/25/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Excessive use of specialised formula for cow's milk allergy was reported in England, but complete analysis has not been undertaken and trends in other countries are unknown. Some specialised formula products, especially amino-acid formula, have high free sugars content. We evaluated specialised formula trends in countries with public databases documenting national prescription rates. METHODS Cross-sectional analysis of national prescription databases in United Kingdom, Norway and Australia. Outcomes were volume and cost of specialised formula, and proportion of infants prescribed specialised formula. Expected volumes assumed 1% cow's milk allergy incidence and similar formula feeding rates between infants with and without milk allergy. RESULTS Prescribed volumes of specialised formula for infants rose 2.8-fold in England from 2007-2018, with similar trends in other regions of the United Kingdom. Volumes rose 2.2-fold in Norway from 2009-2020 and 3.2-fold in Australia from 2001-2012. In 2020, total volumes were 9.7 to 12.6-fold greater than expected in England, 8.3 to 15.6-fold greater than expected in Norway and 3.3 to 4.5-fold greater than expected in Australia, where prescribing restrictions were introduced in 2012. In Norway the proportion of infants prescribed specialised formula increased from 2.2% in 2009 to 6.9% in 2020, or 11.2 to 13.3-fold greater than expected. In 2020, specialised formula for infants cost US$117 (103 euro) per birth in England, US$93 (82 euro) in Norway and US$27 (23 euro) in Australia. Soya formula prescriptions exceeded expected volumes 5.5 to 6.4-fold in England in 1994 and subsequently declined, co-incident with public health concerns regarding soya formula safety. In 2020, 30-50% of prescribed specialised formula across the three countries was amino-acid formula. CONCLUSIONS In England, Norway and Australia, specialised formula prescriptions increased in the early 21st century and exceeded expected levels. Unnecessary specialised formula use may make a significant contribution to free sugars consumption in young children.
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Affiliation(s)
- Shriya Mehta
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Hilary I Allen
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Dianne E Campbell
- Sydney Medical School, University of Sydney, Sydney, New South Wales, Australia.,Allergy and Immunology, Children's Hospital at Westmead, Sydney, Australia
| | - Karoline Fagerli Arntsen
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
| | - Melanie Rae Simpson
- Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway.,Clinic of Laboratory Medicine, St Olav's Hospital, Trondheim, Norway
| | - Robert J Boyle
- National Heart and Lung Institute, Imperial College London, London, United Kingdom
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21
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Xie Q, Xue W. IgE-Mediated food allergy: Current diagnostic modalities and novel biomarkers with robust potential. Crit Rev Food Sci Nutr 2022; 63:10148-10172. [PMID: 35587740 DOI: 10.1080/10408398.2022.2075312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Food allergy (FA) is a serious public health issue afflicting millions of people globally, with an estimated prevalence ranging from 1-10%. Management of FA is challenging due to overly restrictive diets and the lack of diagnostic approaches with high accuracy and prediction. Although measurement of serum-specific antibodies combined with patient medical history and skin prick test is a useful diagnostic tool, it is still an imprecise predictor of clinical reactivity with a high false-positive rate. The double-blind placebo-controlled food challenge represents the gold standard for FA diagnosis; however, it requires large healthcare and involves the risk of acute onset of allergic reactions. Improvement in our understanding of the molecular mechanism underlying allergic disease pathology, development of omics-based methods, and advances in bioinformatics have boosted the generation of a number of robust diagnostic biomarkers of FA. In this review, we discuss how traditional diagnostic modalities guide appropriate diagnosis and management of FA in clinical practice, as well as uncover the potential of the latest biomarkers for the diagnosis, monitoring, and prediction of FA. We also raise perspectives for precise and targeted medical intervention to fill the gap in the diagnosis of FA.
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Affiliation(s)
- Qiang Xie
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
| | - Wentong Xue
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, P.R. China
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22
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Genuneit J, Eigenmann P. Editorial comments on: "Worldwide time trends in prevalence of symptoms of rhinoconjunctivitis in children: Global Asthma Network Phase I". Pediatr Allergy Immunol 2022; 33:e13729. [PMID: 35212043 DOI: 10.1111/pai.13729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 01/11/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany
| | - Philippe Eigenmann
- Department of Pediatrics, Gynecology and Obstetrics, University Hospital of Geneva, Geneva, Switzerland
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23
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Fang H, Ma Z, Chen L, Xian R, Wang J, Chen J, Li H, Hu Y. Trends in the contributions of atopic family history to pediatric food sensitization and allergy. Front Pediatr 2022; 10:967930. [PMID: 36568419 PMCID: PMC9768553 DOI: 10.3389/fped.2022.967930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE Family history of atopic diseases (FHA) contributes to food allergy (FA). But little is known whether FHA primarily increases IgE-mediated, non-IgE-mediated FA, or both. And the trends in the contributions of FHA to food sensitization (FS) and FA remain unclear. We aim to clarify the associations among FHA, FS and FA and to understand the trends in the contributions of FHA to FS and FA. METHODS We used chi-square test and mediating effect model to analyze the associations among FHA, FS and FA through comparisons between two cross-sectional investigations on FA in children under 2 years old in 2009 and 2019. RESULTS In 2009 and 2019, the positive FHA proportion tended to be increasing without significance (28.9% to 31.6%, P = 0.39). Subgroup analysis showed the FS rate in FA group decreased significantly (37/39 to 44/62, P = 0.003). In 2009, the FS rate and FA prevalence were higher in FHA (+) group than in FHA (-) group (26% vs. 14.7%, P = 0.008 and 15% vs. 7.7%, P = 0.03), and FS had a complete mediating effect on the association between FHA and FA (Z = 2.54, P = 0.011), but the results lost significance in 2019. CONCLUSIONS The association between FHA and FA was completely mediated by FS, which means FHA mainly increases IgE-mediated FA. And the contributions of FHA to FS and FA tended to be stabilized or even diminished, which means FHA alone could no longer be enough to screen high-risk children.
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Affiliation(s)
- Heping Fang
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Zhuoying Ma
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Lin Chen
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Ruoling Xian
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Juan Wang
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Jing Chen
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Haiqi Li
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Yan Hu
- Department of Child Health Care, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
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24
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Rangkakulnuwat P, Lao-Araya M. The prevalence and temporal trends of food allergy among preschool children in Northern Thailand between 2010 and 2019. World Allergy Organ J 2021; 14:100593. [PMID: 34721755 PMCID: PMC8521453 DOI: 10.1016/j.waojou.2021.100593] [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: 06/14/2021] [Revised: 09/01/2021] [Accepted: 09/14/2021] [Indexed: 11/17/2022] Open
Abstract
Background Although recent studies suggest that the prevalence of food allergy (FA) has not changed, the data from developing countries are limited. This study aimed to investigate time trends in the prevalence of FA among preschool children in 2010 and 2019 in Northern Thailand. Methods Two cross-sectional studies were performed, 9 years apart (2010 and 2019), using the same methods, in children aged 3–7 years living in Chiang Mai, Thailand. Parent-reporting questionnaire surveys were conducted. Families with children reporting FA were invited to undergo further investigations with skin prick testing, serum specific IgE, and oral food challenge (OFC). The prevalence of parent-reported FA, food sensitization, and OFC-confirmed FA were compared between the 2 periods. Results A total of 1013 out of 1146 questionnaires (452/546 in 2010 and 561/600 in 2019) were returned. The response rate was 88.4%. The prevalence of parent-reported food allergy in 2019 was significantly lower than that in 2010 (5.5% vs 9.3%; p = 0.02). However, there was no significant change in the prevalence of OFC-confirmed FA (0.9% vs 1.1%; p = 0.75). Three leading causative foods of parent-reported FA were cow's milk, shrimp, and eggs. Shrimp was still the most common OFC-confirmed food allergen. Atopic dermatitis was the most significantly parent reported factor associated with FA. Conclusion The overall prevalence of FA among preschool children in Northern Thailand had not increased during the past decade. There was no significant difference in the prevalence of OFC-confirmed FA between 2010 and 2019.
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Affiliation(s)
- Pisuttikan Rangkakulnuwat
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.,School of Medicine, Mae Fah Luang University, Chiang Rai, Thailand
| | - Mongkol Lao-Araya
- Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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25
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Yang T, Li C, Xue W, Huang L, Wang Z. Natural immunomodulating substances used for alleviating food allergy. Crit Rev Food Sci Nutr 2021; 63:2407-2425. [PMID: 34494479 DOI: 10.1080/10408398.2021.1975257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Food allergy is a serious health problem affecting more than 10% of the human population worldwide. Medical treatments for food allergy remain limited because immune therapy is risky and costly, and anti-allergic drugs have many harmful side effects and can cause drug dependence. In this paper, we review natural bioactive substances capable of alleviating food allergy. The sources of the anti-allergic substances reviewed include plants, animals, and microbes, and the types of substances include polysaccharides, oligosaccharides, polyphenols, phycocyanin, polyunsaturated fatty acids, flavonoids, terpenoids, quinones, alkaloids, phenylpropanoids, and probiotics. We describe five mechanisms involved in anti-allergic activities, including binding with epitopes located in allergens, affecting the gut microbiota, influencing intestinal epithelial cells, altering antigen presentation and T cell differentiation, and inhibiting the degranulation of effector cells. In the discussion, we present the limitations of existing researches as well as promising advances in the development of anti-allergic foods and/or immunomodulating food ingredients that can effectively prevent or alleviate food allergy. This review provides a reference for further research on anti-allergic materials and their hyposensitizing mechanisms.
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Affiliation(s)
- Tian Yang
- Key Laboratory of Glycobiology and Glycoengineering of Xi'an, College of Food Science and Technology, Northwest University, Xi'an, China
| | - Cheng Li
- Key Laboratory of Glycobiology and Glycoengineering of Xi'an, College of Food Science and Technology, Northwest University, Xi'an, China
| | - Wentong Xue
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
| | - Linjuan Huang
- Key Laboratory of Glycobiology and Glycoengineering of Xi'an, College of Food Science and Technology, Northwest University, Xi'an, China
| | - Zhongfu Wang
- Key Laboratory of Glycobiology and Glycoengineering of Xi'an, College of Food Science and Technology, Northwest University, Xi'an, China
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26
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Vapor A, Mendonça A, Tomaz CT. Processes for reducing egg allergenicity: Advances and different approaches. Food Chem 2021; 367:130568. [PMID: 34343811 DOI: 10.1016/j.foodchem.2021.130568] [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: 09/19/2020] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 01/03/2023]
Abstract
Egg is a versatile ingredient and ubiquitous food. Nevertheless, egg proteins are a common cause of allergy mainly in childhood. Until now, egg eviction has been the best way to prevent this disorder, however, processed food can contribute to mitigate allergies and to guarantee life quality of allergic individuals. This review focuses on discussing and highlighting recent advances in processes to reduce egg allergenicity as well as new approaches to egg allergy management. In recent times, different methods have been developed to reduce egg allergies, by hiding the epitopes or changing the native or conformational structure of the proteins. Despite processing food has not yet been a solution to completely remove the allergenic potential of egg proteins, innovative strategies, such as addition of phenolic compounds, have been developed with promising results.
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Affiliation(s)
- Alcides Vapor
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - António Mendonça
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal
| | - Cândida T Tomaz
- Department of Chemistry, Faculty of Sciences, Universidade da Beira Interior, Covilhã, Portugal; CICS-UBI, Health Sciences Research Centre, Universidade da Beira Interior, Covilhã, Portugal.
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