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Manti S, Galletta F, Bencivenga CL, Bettini I, Klain A, D’Addio E, Mori F, Licari A, Miraglia del Giudice M, Indolfi C. Food Allergy Risk: A Comprehensive Review of Maternal Interventions for Food Allergy Prevention. Nutrients 2024; 16:1087. [PMID: 38613120 PMCID: PMC11013058 DOI: 10.3390/nu16071087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/14/2024] Open
Abstract
Food allergy represents a global health problem impacting patients' and caregivers' quality of life and contributing to increased healthcare costs. Efforts to identify preventive measures starting from pregnancy have recently intensified. This review aims to provide an overview of the role of maternal factors in food allergy prevention. Several studies indicate that avoiding food allergens during pregnancy does not reduce the risk of developing food allergies. International guidelines unanimously discourage avoidance diets due to potential adverse effects on essential nutrient intake and overall health for both women and children. Research on probiotics and prebiotics during pregnancy as preventive measures is promising, though evidence remains limited. Consequently, guidelines lack specific recommendations for their use in preventing food allergies. Similarly, given the absence of conclusive evidence, it is not possible to formulate definitive conclusions on the supplementation of vitamins, omega-3 fatty acids (n-3 PUFAs), and other antioxidant substances. A combination of maternal interventions, breastfeeding, and early introduction of foods to infants can reduce the risk of food allergies in the child. Further studies are needed to clarify the interaction between genetics, immunological pathways, and environmental factors.
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Affiliation(s)
- Sara Manti
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age ‘Gaetano Barresi’, University of Messina, 98124 Messina, Italy; (S.M.); (F.G.)
| | - Francesca Galletta
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age ‘Gaetano Barresi’, University of Messina, 98124 Messina, Italy; (S.M.); (F.G.)
| | - Chiara Lucia Bencivenga
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy; (C.L.B.); (E.D.); (M.M.d.G.); (C.I.)
| | - Irene Bettini
- Pediatric Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy;
| | - Angela Klain
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy; (C.L.B.); (E.D.); (M.M.d.G.); (C.I.)
| | - Elisabetta D’Addio
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy; (C.L.B.); (E.D.); (M.M.d.G.); (C.I.)
| | - Francesca Mori
- Allergy Unit, Meyer Children’s Hospital, IRCCS, 50139 Florence, Italy;
| | - Amelia Licari
- Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy;
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Michele Miraglia del Giudice
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy; (C.L.B.); (E.D.); (M.M.d.G.); (C.I.)
| | - Cristiana Indolfi
- Department of Woman, Child and of General and Specialized Surgery, University of Campania ‘Luigi Vanvitelli’, 80138 Naples, Italy; (C.L.B.); (E.D.); (M.M.d.G.); (C.I.)
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Hill SA, Nurmatov U, DunnGalvin A, Reese I, Vieira MC, Rommel N, Dupont C, Venter C, Cianferoni A, Walsh J, Yonamine G, Beauregard A, Meyer R, Vazquez-Ortiz M. Feeding difficulties in children with food allergies: An EAACI Task Force Report. Pediatr Allergy Immunol 2024; 35:e14119. [PMID: 38566436 DOI: 10.1111/pai.14119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 03/13/2024] [Indexed: 04/04/2024]
Abstract
The term "feeding difficulties" refers to a spectrum of phenotypes characterized by suboptimal intake of food and/or lack of age-appropriate eating habits. While it is evident that feeding difficulties are prevalent within healthy children, no consensus has been reached for those with food allergies. The aim of this study was to systematically review all the available literature reporting the prevalence of feeding difficulties within food allergic children. We searched eight international electronic databases for all published studies until June 2022. International experts in the field were also contacted for unpublished and ongoing studies. All publications were screened against pre-defined eligibility criteria and critically appraised by established instruments. The substantial heterogeneity of included studies precluded meta-analyses, so narrative synthesis of quantitative data was performed. A total of 2059 abstracts were assessed, out of which 21 underwent full-text screening and 10 studies met the study criteria. In these, 12 different terms to define feeding difficulties and 11 diagnostic tools were used. Five papers included data of feeding difficulty prevalence in children with food allergies, ranging from 13.6% to 40%. Higher prevalence was associated with multiple food allergies. The current literature suggests that feeding difficulties are prevalent within food allergic children, particularly those with multiple food allergies. However, the heterogeneity of terminologies and diagnostic tools makes drawing conclusions challenging. Consensus guidelines for the diagnosis and management of feeding difficulties within food allergic children and further research on the development and perpetuation of feeding difficulties are needed to appropriately manage such patients.
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Affiliation(s)
- Sarah-Anne Hill
- National Heart and Lung Institute, Imperial College London, London, UK
| | - Ulugbek Nurmatov
- Division of Population Medicine, School of Medicine, Cardiff University, Cardiff, UK
| | - Audrey DunnGalvin
- NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, University of Southampton Faculty of Medicine, Southampton, UK
| | | | - Mario C Vieira
- Center for Pediatric Gastroenterology, Hospital Pequeno Principe, Curitiba, Brazil
| | - Natalie Rommel
- University Hospital Tübingen, Tübingen, Germany
- Therapiezentrum, University Hospital Tübingen, Tübingen, Germany
| | - Christophe Dupont
- Paris Descartes University, Paris, France
- Clinique Marcel Sembat, Ramsay Group, Boulogne Billancourt, France
| | - Carina Venter
- University of Colorado/Children's Hospital Colorado, Denver, Colorado, USA
| | - Antonella Cianferoni
- Allergy and Immunology Division, Perelman School of Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | | | - Glauce Yonamine
- Division of Nutrition, Instituto da Criança e do Adolescente, Hospital das Clínicas da Universidade de São Paulo, São Paulo, Brazil
| | - Alexia Beauregard
- Faculty, Ellyn Satter Institute, Clinical Dietetics Branch Winn Army Community Hospital, Fort Stewart, Georgia, USA
| | - Rosan Meyer
- Imperial College London, London, UK
- University of Winchester, Winchester, UK
- University of KU Leuven, Leuven, Belgium
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Yang N, Srivastava K, Chen Y, Li H, Maskey A, Yoo P, Liu X, Tiwari RK, Geliebter J, Nowak-Wegrzyn A, Zhan J, Li XM. Sustained silencing peanut allergy by xanthopurpurin is associated with suppression of peripheral and bone marrow IgE-producing B cell. Front Immunol 2024; 15:1299484. [PMID: 38380329 PMCID: PMC10876879 DOI: 10.3389/fimmu.2024.1299484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/11/2024] [Indexed: 02/22/2024] Open
Abstract
Introduction Peanut allergy is an immunoglobulin E (IgE) mediated food allergy. Rubia cordifolia L. (R. cordifolia), a Chinese herbal medicine, protects against peanut-induced anaphylaxis by suppressing IgE production in vivo. This study aims to identify IgE-inhibitory compounds from the water extract of R. cordifolia and investigate the underlying mechanisms using in vitro and in vivo models. Methods Compounds were isolated from R. cordifolia water extract and their bioactivity on IgE production was assessed using a human myeloma U266 cell line. The purified active compound, xanthopurpurin (XPP), was identified by LC-MS and NMR. Peanut-allergic C3H/HeJ mice were orally administered with or without XPP at 200µg or 400µg per mouse per day for 4 weeks. Serum peanut-specific IgE levels, symptom scores, body temperatures, and plasma histamine levels were measured at challenge. Cytokines in splenocyte cultures were determined by ELISA, and IgE + B cells were analyzed by flow cytometry. Acute and sub-chronic toxicity were evaluated. IL-4 promoter DNA methylation, RNA-Seq, and qPCR analysis were performed to determine the regulatory mechanisms of XPP. Results XPP significantly and dose-dependently suppressed the IgE production in U266 cells. XPP significantly reduced peanut-specific IgE (>80%, p <0.01), and plasma histamine levels and protected the mice against peanut-allergic reactions in both early and late treatment experiments (p < 0.05, n=9). XPP showed a strong protective effect even 5 weeks after discontinuing the treatment. XPP significantly reduced the IL-4 level without affecting IgG or IgA and IFN-γ production. Flow cytometry data showed that XPP reduced peripheral and bone marrow IgE + B cells compared to the untreated group. XPP increased IL-4 promoter methylation. RNA-Seq and RT-PCR experiments revealed that XPP regulated the gene expression of CCND1, DUSP4, SDC1, ETS1, PTPRC, and IL6R, which are related to plasma cell IgE production. All safety testing results were in the normal range. Conclusions XPP successfully protected peanut-allergic mice against peanut anaphylaxis by suppressing IgE production. XPP suppresses murine IgE-producing B cell numbers and inhibits IgE production and associated genes in human plasma cells. XPP may be a potential therapy for IgE-mediated food allergy.
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Affiliation(s)
- Nan Yang
- R & D Division, General Nutraceutical Technology, LLC, Elmsford, NY, United States
| | - Kamal Srivastava
- R & D Division, General Nutraceutical Technology, LLC, Elmsford, NY, United States
| | - Yujuan Chen
- School of Life Science and Technology, Changchun University of Science and Technology, Changchun, Jilin, China
| | - Hang Li
- Central Lab, Shenzhen Bao’an Chinese Medicine Hospital, Shenzhen, China
| | - Anish Maskey
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Patrick Yoo
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Xiaohong Liu
- Department of Respiratory, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Raj K. Tiwari
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Jan Geliebter
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Anna Nowak-Wegrzyn
- Department of Pediatrics, Hassenfeld Children’s Hospital, NYU Grossman School of Medicine, New York, NY, United States
| | - Jixun Zhan
- Department of Biological Engineering, Utah State University, Logan, UT, United States
| | - Xiu-Min Li
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
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Uchida AM, Garber JJ, Pyne A, Peterson K, Roelstraete B, Olén O, Halfvarson J, Ludvigsson JF. Eosinophilic esophagitis is associated with increased risk of later inflammatory bowel disease in a nationwide Swedish population cohort. United European Gastroenterol J 2024; 12:34-43. [PMID: 38058270 PMCID: PMC10859712 DOI: 10.1002/ueg2.12493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 10/20/2023] [Indexed: 12/08/2023] Open
Abstract
BACKGROUND Earlier studies on the possible association between eosinophilic esophagitis (EoE) and inflammatory bowel disease (IBD) have been contradictory. METHODS Patients with biopsy-verified EoE diagnosed between 1990 and 2017 in Sweden (n = 1587) were age- and sex-matched with up to five general population reference individuals (n = 7808). EoE was defined using pathology reports from all 28 pathology centers in Sweden (the ESPRESSO study). Multivariate Cox regression then estimated hazard ratios for future IBD. IBD was defined based on the international classification of disease codes and histopathology codes. In secondary analyses, sibling comparators were used to further reduce potential familial confounding. Additionally, we performed logistic regression examining earlier IBD in EoE. RESULTS During follow-up until 2020, 16 (0.01%) EoE patients and 21 (0.003%) general population reference individuals diagnosed with IBD, corresponding to a 3.5-fold increased risk of future IBD (aHR = 3.56; 95% CI 1.79-7.11). EoE was linked to Crohn's disease (aHR = 3.39 [95% CI 1.02-9.60]) but not to ulcerative colitis (aHR = 1.37; 95% CI 0.38-4.86). Compared to their siblings, patients with EoE were at a 2.48-fold increased risk of IBD (aHR = 2.48; 95% CI 0.92-6.70). Earlier IBD was 15 times more likely in EoE patients than in matched reference individuals (odds ratio, 15.39; 95% CI 7.68-33.59). CONCLUSION In this nationwide cohort study, EoE was associated with a 3.5-fold increased risk of later IBD diagnosis. This risk increase may be due to shared genetic or early environmental risk factors, but also surveillance bias could play a role.
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Affiliation(s)
- Amiko M Uchida
- Division of Gastroenterology, Hepatology & Nutrition, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - John J Garber
- Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ashley Pyne
- Division of Gastroenterology, Hepatology & Nutrition, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Kathryn Peterson
- Division of Gastroenterology, Hepatology & Nutrition, University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Bjorn Roelstraete
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Ola Olén
- Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
- Sachs' Children and Youth Hospital, Stockholm South General Hospital, Stockholm, Sweden
- Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Halfvarson
- Department of Gastroenterology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
| | - Jonas F Ludvigsson
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
- Department of Pediatrics, Örebro University, Örebro, Sweden
- Department of Medicine, Celiac Disease Center, Columbia University College of Physicians and Surgeons, New York, New York, USA
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Anagnostou A, Greenhawt M, Rodríguez Del Río P, Pickett G, Szafron V, Stukus D, Abrams EM. Addressing common questions on food oral immunotherapy: a practical guide for paediatricians. Arch Dis Child 2024:archdischild-2023-326225. [PMID: 38216305 DOI: 10.1136/archdischild-2023-326225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 12/13/2023] [Indexed: 01/14/2024]
Abstract
Food allergy has been increasing in prevalence in most westernised countries and poses a significant burden to patients and families; dietary and social limitations as well as psychosocial and economic burden affect daily activities, resulting in decreased quality of life. Food oral immunotherapy (food-OIT) has emerged as an active form of treatment, with multiple benefits such as increasing the threshold of reactivity to the allergenic food, decreasing reaction severity on accidental exposures, expanding dietary choices, reducing anxiety and generally improving quality of life. Risks associated with food immunotherapy mostly consist of allergic reactions during therapy. While the therapy is generally considered both safe and effective, patients and families must be informed of the aforementioned risks, understand them, and be willing to accept and hedge these risks as being worthwhile and outweighed by the anticipated benefits through a process of shared decision-making. Food-OIT is a good example of a preference-sensitive care paradigm, given candidates for this therapy must consider multiple trade-offs for what is considered an optional therapy for food allergy compared with avoidance. Additionally, clinicians who discuss OIT should remain increasingly aware of the growing impact of social media on medical decision-making and be prepared to counter misconceptions by providing clear evidence-based information during in-person encounters, on their website, and through printed information that families can take home and review.
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Affiliation(s)
- Aikaterini Anagnostou
- Department of Pediatrics, Texas Children's Hospital, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | - Matthew Greenhawt
- Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colorado, USA
| | | | - Grant Pickett
- Department of Pediatrics, Texas Children's Hospital, Houston, Texas, USA
- Baylor College of Medicine, Houston, Texas, USA
| | | | - David Stukus
- The Ohio State University College of Medicine, Columbus, Ohio, USA
| | - Elissa M Abrams
- Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
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Izabela KM, Emilia M, Weronika G, Danuta K, Jakub S, Beata BJ, Ryszard K, Bożena C. The Sensitization Profile for Selected Food Allergens in Polish Children Assessed with the Use of a Precision Allergy Molecular Diagnostic Technique. Int J Mol Sci 2024; 25:825. [PMID: 38255900 PMCID: PMC10815771 DOI: 10.3390/ijms25020825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 12/27/2023] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Individual populations show a variety of sensitization patterns, which may be associated with the geographic region, climate, dietary habits, or ways of preparing food. The purpose of this study was to comprehensively assess the food allergy sensitization profile in Polish children, particularly to eight food allergens (so-called "the Big 8"): cow milk, eggs, wheat, soybeans, fish, crustacean shellfish, tree nuts, and peanuts. To assess the prevalence and serum levels of specific immunoglobulins E (sIgE), we analyzed the results obtained from selected laboratories located in all regions of Poland that used the multiplex ALEX® test in the period from 2019 to 2022. Results from 3715 children were obtained. The mean age of the study population was 7.0 years. The results were stratified by age: <12 months (3.63%), 1-5 years (39.54%), 6-13 years (46.32%), and 14-18 years (10.0%). The final analysis included the sIgE results obtained with 95 food extracts and 77 food allergen molecules. The highest rates of sIgE to food allergen extracts were found for peanut (29.20%), hazel (28.20%), and apple (23.60%), and those to allergenic molecules were found for the PR-10 family of molecules (Cor a 1.0401 (23.77%), Mal d 1 (22.37%), Ara h 8 (16.93%), and globulin 7/8S (Ara h 1; 15.59%)). The lowest rates of sIgE reactivity to extracts were found for strawberry (0.40%), oregano (0.30%), and thornback ray (0.16%), and those to allergenic molecules were found for Mal d 2 (0.27%) (thaumatin-like protein, TLP), Ani s 1 (0.30%) (Kunitz-type serine protease inhibitor), and Che a 1 (0.43%) (Ole e 1 family). The rates of sensitization to storage proteins of the analyzed "the Big 8" molecules decreased significantly (p < 0.05) with age. Conversely, the rates of sensitization to PR-10 family proteins increased significantly with age. The three most common allergens in Poland, regardless of whether IgE was assayed against extracts or molecules of food allergens, were peanut, hazel, and apple (in different order depending on the ranking). A detailed analysis of sensitization to the extracts and molecules of main food allergens based on the results of a multiplex ALEX® test demonstrated the sensitization profile in Polish children (including molecular sensitization, particularly the "the Big 8" food allergen molecules), which shows considerable differences in comparison with those in other countries. Serum sIgE analysis of children from all regions of Poland revealed a food allergen molecular sensitization profile that changes with age.
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Affiliation(s)
- Knyziak-Mędrzycka Izabela
- Outpatient Allergology Clinic, the Children’s Memorial Health Institute, Aleja Dzieci Polskich 20, 04-730 Warsaw, Poland
| | - Majsiak Emilia
- Department of Health Promotion, Faculty Health of Sciences, Medical University of Lublin, Staszica 4/6, 20-081 Lublin, Poland
| | - Gromek Weronika
- Polish-Ukrainian Foundation of Medicine Development, Nałęczowska 14, 20-701 Lublin, Poland
| | - Kozłowska Danuta
- Diagnostyka S.A., Prof. M.Życzkowskiego 16, 31-864 Kraków, Poland (S.J.)
| | - Swadźba Jakub
- Diagnostyka S.A., Prof. M.Życzkowskiego 16, 31-864 Kraków, Poland (S.J.)
| | - Bierła Joanna Beata
- Department of Pathomorphology, the Children’s Memorial Health Institute, Aleja Dzieci Polskich 20, 04-730 Warsaw, Poland (C.B.)
| | - Kurzawa Ryszard
- Department of Allergology and Pneumonology of the National Research Institute for Tuberculosis and Lung Diseases, Regional Branch in Rabka-Zdrój, Profesora Rudnika 3B, 34-700 Rabka-Zdrój, Poland
| | - Cukrowska Bożena
- Department of Pathomorphology, the Children’s Memorial Health Institute, Aleja Dzieci Polskich 20, 04-730 Warsaw, Poland (C.B.)
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Janssen R, de Kleer JWM, Heming B, Bastiaan-Net S, Garssen J, Willemsen LEM, Masereeuw R. Food allergen sensitization on a chip: the gut-immune-skin axis. Trends Biotechnol 2024; 42:119-134. [PMID: 37580191 DOI: 10.1016/j.tibtech.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/21/2023] [Accepted: 07/24/2023] [Indexed: 08/16/2023]
Abstract
The global population is growing, rapidly increasing the demand for sustainable, novel, and safe food proteins with minimal risks of food allergy. In vitro testing of allergy-sensitizing capacity is predominantly based on 2D assays. However, these lack the 3D environment and crosstalk between the gut, skin, and immune cells essential for allergy prediction. Organ-on-a-chip (OoC) technologies are promising to study type 2 immune activation required for sensitization, initiated in the small intestine or skin, in interlinked systems. Increasing the mechanistic understanding and, moreover, finding new strategies to study interorgan communication is of importance to recapitulate food allergen sensitization in vitro. Here, we outline recently developed OoC platforms and discuss the features needed for reliable prediction of sensitizing allergenicity of proteins.
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Affiliation(s)
- Robine Janssen
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - Janna W M de Kleer
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - Bo Heming
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - Shanna Bastiaan-Net
- Wageningen Food and Biobased Research, Wageningen University and Research, Wageningen, The Netherlands
| | - Johan Garssen
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands; Danone Nutricia Research B.V., Utrecht, The Netherlands
| | - Linette E M Willemsen
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands
| | - Rosalinde Masereeuw
- Department of Pharmaceutical Sciences, Pharmacology, Utrecht University, Utrecht, The Netherlands.
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Rao S, Chen X, Ou OY, Chair SY, Chien WT, Liu G, Waye MMY. A Positive Causal Effect of Shrimp Allergy on Major Depressive Disorder Mediated by Allergy- and Immune-Related Pathways in the East Asian Population. Nutrients 2023; 16:79. [PMID: 38201909 PMCID: PMC10780813 DOI: 10.3390/nu16010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 12/11/2023] [Accepted: 12/14/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Observational studies have implied a potential correlation between allergic diseases and major depressive disorder (MDD). However, the relationship is still inconclusive as it is likely to be interfered with by substantial confounding factors and potential reverse causality. The present study aimed to investigate causal correlation of the two diseases by a Mendelian randomization (MR) study and further elucidate the underlying molecular mechanisms. METHODS With the biggest summary datasets of a genome-wide association study (GWAS) in the East Asian population, we conducted a two-sample, bidirectional MR study to assess the causal correlation between shrimp allergy (SA) and MDD. Subsequently, we identified the pleiotropic genes' susceptibility to the two diseases at whole-genome and tissue-specific levels, respectively. Enriched GO sets and KEGG pathways were also discovered to elucidate the potential underlying mechanisms. RESULTS With the most suitable MR method, SA was identified as a causal risk factor for MDD based on three different groups of independent genetic instruments, respectively (p < 2.81 × 10-2). In contrast, we did not observe a significant causal effect of MDD on SA. The GWAS-pairwise program successfully identified seven pleiotropic genetic variants (PPA3 > 0.8), indicating that the two diseases indeed have a shared genetic basis. At a whole-genome level, the MAGMA program identified 44 pleiotropic genes, which were enriched in allergy-related pathways, such as antigen processing and presentation pathway (p = 1.46 × 10-2). In brain-specific tissue, the S-MultiXcan program found 17 pleiotropic genes that were significantly enriched in immune-related pathways and GO sets, including asthma-related pathway, T-cell activation-related, and major histocompatibility complex protein-related GO sets. Regarding whole-blood tissue, the program identified six pleiotropic genes that are significantly enriched in tolerance induction-related GO sets. CONCLUSIONS The present study for the first time indicated a significant causal effect of SA on the occurrence of MDD, but the reverse was not true. Enrichment analyses of pleiotropic genes at whole-genome and tissue-specific levels implied the involvement of allergy and immune-related pathways in the shared genetic mechanism of the two diseases. Elucidating the causal effect and the acting direction may be beneficial in reducing the incidence rate of MDD for the massive group of SA patients in the East Asian region.
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Affiliation(s)
- Shitao Rao
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Institute of Precision Medicine, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou 350122, China; (S.R.); (X.C.)
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaotong Chen
- Department of Bioinformatics, Fujian Key Laboratory of Medical Bioinformatics, Institute of Precision Medicine, School of Medical Technology and Engineering, Fujian Medical University, Fuzhou 350122, China; (S.R.); (X.C.)
| | - Olivia Yanlai Ou
- Department of Psychology, University of Toronto, Toronto, ON M5S 1A1, Canada;
| | - Sek Ying Chair
- Croucher Laboratory for Human Genomics, Asia-Pacific Genomic and Genetic Nursing Centre, The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, China; (S.Y.C.); (W.T.C.)
| | - Wai Tong Chien
- Croucher Laboratory for Human Genomics, Asia-Pacific Genomic and Genetic Nursing Centre, The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, China; (S.Y.C.); (W.T.C.)
| | - Guangming Liu
- College of Ocean Food and Biological Engineering, Xiamen Key Laboratory of Marine Functional Food, Fujian Provincial Engineering Technology Research Center of Marine Functional Food, Jimei University, Xiamen 361021, China
| | - Mary Miu Yee Waye
- Croucher Laboratory for Human Genomics, Asia-Pacific Genomic and Genetic Nursing Centre, The Nethersole School of Nursing, The Chinese University of Hong Kong, Hong Kong, China; (S.Y.C.); (W.T.C.)
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Santos AF, Worm M, Kurita S, Wong T, Contato D, Pirillo E, Esteban AE, Tassinari P, Perna F, Chinthrajah RS. Living with food allergies: the experiences of adult patients and caregivers. Front Allergy 2023; 4:1272851. [PMID: 38026132 PMCID: PMC10658712 DOI: 10.3389/falgy.2023.1272851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023] Open
Abstract
Background Few studies have addressed how food allergy may impact differently on the daily lives of adults with food allergies and caregivers for food-allergic dependents. Objective To explore similarities and differences in life experiences and unmet needs between individuals caring for a child with food allergy and adults with food allergy world-wide. Methods Two multinational, virtual, interactive, moderated discussions of specific questions between respectively people with food allergies and caregivers for people with food allergies, with experienced clinicians participating. Results Sixteen individuals living with food allergies and nine caregivers took part in the two roundtables. Food avoidance and antihistamines were the most common treatments for food-allergic reactions in both groups. Caregivers reported greater burden of disease on affected individuals and families than did adult patients. Adult panelists considered autoinjectors easy to use but caregivers reported additional emotional stress thinking about autoinjector use. Caregivers described an ever-present fear of inattention and of overlooking a risk factor for a severe reaction, whereas adult panelists showed a determination not to let their food allergies interfere with living their lives. Both groups had safety-conscious attitudes to treatments, but adult patients emphasized convenience while caregivers prioritized reduced severity of reactions and eliminated fear. Both groups confirmed the need for improved, trusted sources of information, and for resources and training programs for any new therapies. Conclusion The interactive exchange provided insights into differences between adult patients and caregivers, notably in fear and confidence in daily life, severity of disease impact, and unmet needs for treatments.
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Affiliation(s)
- Alexandra F. Santos
- Faculty of Life Sciences and Medicine, King’s College London, London, United Kingdom
- Children’s Allergy Service, Evelina London Children’s Hospital, London, United Kingdom
| | - Margitta Worm
- Division of Allergology and Dermatology, Charité, Berlin, Germany
| | - Shoko Kurita
- Japanese Mother’s Society for Allergy Care (JMSAC), Kanagawa, Japan
| | - Tania Wong
- Allergy & Anaphylaxis Australia, Castle Hill, NSW, Australia
| | | | | | - A. Esther Esteban
- Spanish Association for People with Food and Latex Allergy (AEPNAA), Madrid, Spain
| | | | | | - R. Sharon Chinthrajah
- Sean N Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, CA, United States
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10
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Magnarelli A, Wood RA, Curran J, Alexander GC, Dantzer J. Real-world utilization of Arachis hypogaea for peanut allergy: Patient and provider perspective. J Allergy Clin Immunol Pract 2023; 11:3253-3256.e2. [PMID: 37329956 PMCID: PMC10592438 DOI: 10.1016/j.jaip.2023.06.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/11/2023] [Accepted: 06/09/2023] [Indexed: 06/19/2023]
Affiliation(s)
- Aimee Magnarelli
- Department of Pediatric Allergy, Immunology and Rheumatology, Johns Hopkins School of Medicine, Baltimore, Md
| | - Robert A Wood
- Department of Pediatric Allergy, Immunology and Rheumatology, Johns Hopkins School of Medicine, Baltimore, Md
| | - Jill Curran
- Department of Epidemiology, Center for Drug Safety and Effectiveness, Johns Hopkins Bloomberg School of Public Health, Baltimore, Md
| | - G Caleb Alexander
- Department of Epidemiology, Center for Drug Safety and Effectiveness, Johns Hopkins Bloomberg School of Public Health, Baltimore, Md
| | - Jennifer Dantzer
- Department of Pediatric Allergy, Immunology and Rheumatology, Johns Hopkins School of Medicine, Baltimore, Md.
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11
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Arámburo-Gálvez JG, Figueroa-Salcido OG, Ramírez-Torres GI, Terán-Cabanillas E, Gracia-Valenzuela MH, Arvizu-Flores AA, Sánchez-Cárdenas CA, Mora-Melgem JA, Valdez-Zavala L, Cárdenas-Torres FI, Ontiveros N. Prevalence of Parent-Reported Food Allergy in a Mexican Pre-School Population. J Clin Med 2023; 12:5095. [PMID: 37568497 PMCID: PMC10420166 DOI: 10.3390/jcm12155095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
The magnitude and relevance of food allergies in the preschool population remain unknown in most regions of Mexico and Latin America. Thus, our aim was to estimate the parent-reported prevalence of food allergies in a Mexican preschool population and to characterize their clinical diagnosis and presentation. A cross-sectional survey was conducted in Culiacán City. A validated questionnaire was utilized. A total of 810 parents responded to the questionnaire (valid response rate, 40.7%). The estimated prevalence rates (95% CI) were: "physician-diagnosed Food Allergy (FA), ever" 5.30% (3.86-7.08); "immediate-type FA, ever" 2.96% (1.91-4.38); "immediate-type FA, current" 1.60% (0.86-2.73); and food-dependent anaphylaxis 1.11% (0.51-2.01). The main food allergens were milk (0.49%), strawberries (0.37%), egg, and soy (0.25% each). Atopic diseases and a family history of allergies were significantly associated with immediate-type FA. Among "immediate-type FA, current" cases, 76.9% required emergency room visits, but the prescription of epinephrine autoinjectors was reported in one case only. The food reactions occurred at home (92.35%), in a relative's house (38.5), and at restaurants (23%). Immediate-type FA reactions requiring emergency room visits are not uncommon among the studied population. Actions like proper anaphylaxis management and the prevention of cross-contamination of foods should be encouraged.
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Affiliation(s)
- Jesús Gilberto Arámburo-Gálvez
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - Oscar Gerardo Figueroa-Salcido
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
- Integral Postgraduate Program in Biotechnology, Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, Ciudad Universitaria, Culiacan 80010, Mexico
| | | | - Elí Terán-Cabanillas
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - Martina Hilda Gracia-Valenzuela
- Department of Engineering, Technological National of Mexico, Technological Institute of the Yaqui Valley, Bacum 85276, Mexico;
| | - Aldo Alejandro Arvizu-Flores
- Postgraduate Program in Health Sciences, Faculty of Biological and Health Sciences, University of Sonora, Hermosillo 83000, Mexico;
| | - Cesar Antonio Sánchez-Cárdenas
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - José Antonio Mora-Melgem
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - Luisamaria Valdez-Zavala
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - Feliznando Isidro Cárdenas-Torres
- Nutrition Sciences Postgraduate Program, Faculty of Nutrition Sciences, Autonomous University of Sinaloa, Culiacan 80010, Mexico; (J.G.A.-G.); (O.G.F.-S.); (E.T.-C.); (C.A.S.-C.); (J.A.M.-M.); (L.V.-Z.)
| | - Noé Ontiveros
- Clinical and Research Laboratory (LACIUS, U.N.), Department of Chemical, Biological, and Agricultural Sciences (DC-QB), Faculty of Biological and Health Sciences, University of Sonora, Navojoa 85880, Mexico
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12
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Ciciulla D, Soriano VX, McWilliam V, Koplin JJ, Peters RL. Systematic Review of the Incidence and/or Prevalence of Eating Disorders in Individuals With Food Allergies. J Allergy Clin Immunol Pract 2023; 11:2196-2207.e13. [PMID: 37088367 DOI: 10.1016/j.jaip.2023.04.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/14/2023] [Accepted: 04/10/2023] [Indexed: 04/25/2023]
Abstract
BACKGROUND Chronic diseases involving strict dietary adherence have been associated with an increased risk of eating disorders (EDs). This is the first systematic review investigating the rate of EDs among individuals with food allergies (FAs). OBJECTIVE To report the incidence, prevalence, and types of EDs in individuals with FAs. METHODS Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, we searched 4 databases for studies published to January 2022 that reported the prevalence or incidence of EDs in samples with immunoglobulin E (IgE) or non-IgE-mediated allergy. Risk of bias was assessed and evidence qualitatively synthesized. RESULTS From 1,180 papers identified, 9 met inclusion criteria. There were 4,161 adult and pediatric participants with IgE-mediated FAs or eosinophilic esophagitis. Avoidant/Restrictive Food Intake Disorder (ARFID) or anorexia nervosa/bulimia nervosa were the main EDs identified. The prevalence of EDs in samples with FA ranged from 0.8% to 62.9%. Among studies investigating IgE-mediated FA (n = 6), the prevalence of anorexia nervosa and/or bulimia nervosa ranged from 17.6 to 61%, ARFID was 62.9%, and unspecified EDs was 0.8% to 6%. Among samples with eosinophilic esophagitis (n = 3), ARFID prevalence ranged from 4.5% to 51%. Most studies were limited by small sample size, possible selection bias, and lack of diagnostic EDs tools validated for food allergic populations. CONCLUSIONS Eating disorders appear prevalent in individuals with FA; however, prevalence estimates varied widely. Large studies with healthy control groups and validated measures to identify EDs in individuals with FA are needed to accurately determine the prevalence of EDs.
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Affiliation(s)
- Daniela Ciciulla
- Population Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia; Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia.
| | - Victoria X Soriano
- Population Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Vicki McWilliam
- Population Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia; Department of Allergy and Immunology, Royal Children's Hospital, Melbourne, Victoria, Australia
| | - Jennifer J Koplin
- Population Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia; Centre for Food and Allergy Research (CFAR), Murdoch Children's Research Institute, Parkville, Victoria, Australia; Child Health Research Centre, University of Queensland, Brisbane, St. Lucia, Queensland, Australia
| | - Rachel L Peters
- Population Health, Murdoch Children's Research Institute, Parkville, Victoria, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
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13
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Indolfi C, Dinardo G, Klain A, Contieri M, Umano GR, Decimo F, Abbadessa S, Vitulano C, Ciprandi G, Miraglia del Giudice M. Sensitization to nsLTP: A Retrospective Study in An Italian Pediatric Population over the Last Decade. J Immunol Res 2023; 2023:4053799. [PMID: 37228443 PMCID: PMC10205406 DOI: 10.1155/2023/4053799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/18/2023] [Accepted: 05/02/2023] [Indexed: 05/27/2023] Open
Abstract
Background Food allergy is common in the Mediterranean, especially concerning lipid transfer proteins (LTPs) allergy. LTPs are widespread plant food allergens in fruits, vegetables, nuts, pollen, and latex. Also, LTPs are prevalent food allergens in the Mediterranean area. They can sensitize via the gastrointestinal tract and cause a wide range of conditions: from mild reactions, such as oral allergy syndrome, to severe reactions, such as anaphylaxis. LTP allergy in the adult population is well described in the literature, concerning both the prevalence and clinical characteristics. However, there is poor knowledge about its prevalence and clinical manifestation in children living in the Mediterranean. Materials and Methods This study, including 800 children aged from 1 to 18 years, investigated the prevalence of 8 different molecules of nonspecific LTP over time in an Italian pediatric population visited over the last 11 years. Results About 52% of the test population was sensitized to at least one LTP molecule. For all the LTPs analyzed, sensitization increased over time. In particular, using the years 2010 through 2020 as a comparison, the major increases were observed for the LTPs of the English walnut Jug r 3, the peanut Ara h 9, and the plane tree Pla a 3 (about 50%); the increase of the LTP of the Hazelnut Cor a 8 was about 36%, and that of the LTP of the artemisia Art v 3 was approximately 30%. Conclusions The latest evidence in the literature indicates an increase in food allergy prevalence in the general population, including children. Therefore, the present survey represents an interesting perspective about the pediatric population of the Mediterranean area, exploring the trend of LTP allergy.
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Affiliation(s)
- Cristiana Indolfi
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giulio Dinardo
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Angela Klain
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Marcella Contieri
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Giuseppina Rosaria Umano
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Fabio Decimo
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Salvatore Abbadessa
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | - Carolina Vitulano
- Department of Precision Medicine, University of Campania “Luigi Vanvitelli”, Naples, Italy
| | | | - Michele Miraglia del Giudice
- Department of Woman, Child and of General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
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14
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Romero-Velarde E, Caro-Sabido É, Flores-Limón VA. [Early introduction of potentially allergenic foods in pediatric patients under six months of age]. Rev Alerg Mex 2023; 69:183-194. [PMID: 37218046 DOI: 10.29262/ram.v69i4.1132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 12/14/2022] [Indexed: 05/24/2023] Open
Abstract
OBJECTIVE To review the available evidence on the early introduction of allergenic foods and the possible protection in the development of food allergy in later stages. METHODS An exploratory review of randomized clinical trials whose study population included infants less than 6 months of age at enrollment with or without a diagnosis of food allergy was conducted. For the purposes of this review, eggs, peanuts, and wheat were included as potentially allergenic foods. The following databases were consulted: Medline, EBSCO, OVID, Science Direct and JSTOR (Journal Storage), Scielo, LILACS, Redalyc and Imbiomed from August to December 2021. RESULTS 429 articles were identified, 412 were excluded, and the final analysis included 9 studies that met the inclusion criteria. Six trials correspond to allergy to eggs, two to peanuts and one to wheat. The age of introduction differs in all trials. The earliest exposure was at 3.5 months and the latest at 5.5 months. The reduction in the risk of developing food allergy occurred in children at risk of allergy. Adverse reactions were common, particularly with the introduction of egg. CONCLUSIONS We found no evidence that early introduction (< 6 months of age) of allergenic foods reduces the risk of developing food allergy in infants without risk factors.
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Affiliation(s)
- Enrique Romero-Velarde
- División de Pediatría, Unidad de Soporte Metabólico y Nutriciona, Hospital Civil de Guadalajara Dr. Juan I. Menchaca, Jalisco, México.
- Universidad de Guadalajara, Centro Universitario de Ciencias de la Salud, Instituto de Nutrición Humana, Jalisco, México
| | - Érika Caro-Sabido
- Universidad de Guadalajara, Centro Universitario de Ciencias de la Salud, Instituto de Nutrición Humana, Jalisco, México
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15
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Geba GP, Li D, Xu M, Mohammadi K, Attre R, Ardeleanu M, Musser B. Attenuating the atopic march: Meta-analysis of the dupilumab atopic dermatitis database for incident allergic events. J Allergy Clin Immunol 2023; 151:756-766. [PMID: 36084766 DOI: 10.1016/j.jaci.2022.08.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/29/2022] [Accepted: 08/02/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Atopic march refers to the sequential development of allergic diseases from infancy through adolescence, typically beginning with atopic dermatitis (AD), followed by food allergy and then airway diseases, later evolving to broader or worsened spectrum of allergic diatheses. No intervention has shown to alter its course. OBJECTIVE We sought to determine the rate of acquisition of new or worsened allergic events for dupilumab versus placebo in patients with AD. METHODS Allergy-associated events from 12 clinical trials were grouped into 17 allergy categories, and IgE changes from baseline were defined. A new/worsened event was considered one step of atopic march. Treatment effect was assessed by incidence rate ratios (IRRs), dupilumab versus placebo, by meta-analysis. RESULTS The duration of pooled AD studies was 4 to 52 weeks (1359 patient-years; n = 2296 dupilumab, n = 1229 placebo, median age 35 years). The median age at AD onset was 2 years. Baseline allergic disease burden was comparable between groups. Dupilumab reduced the risk of new/worsening allergies by 34% (IRR 0.66; 95% confidence interval [CI], 0.52-0.84) and new allergies by 37% (IRR 0.63; 95% CI, 0.48-0.83) versus placebo. Including IgE category shift, the IRR for combined new/worsening allergies was reduced by 54% (IRR 0.46; 95% CI, 0.36-0.57). These treatment benefits did not reverse on treatment discontinuation in off-treatment follow-up. CONCLUSIONS The acquisition/worsening of allergic conditions suggestive of atopic march was observed in a pooled adult/adolescent AD study population with inadequately controlled AD. Treatment with dupilumab reduced new/worsened allergy events versus placebo; inclusion of IgE category change increased the apparent benefit.
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Affiliation(s)
| | - Dateng Li
- Regeneron Pharmaceuticals, Inc, Tarrytown, NY
| | - Meng Xu
- Regeneron Pharmaceuticals, Inc, Tarrytown, NY
| | | | - Richa Attre
- Regeneron Pharmaceuticals, Inc, Tarrytown, NY
| | | | - Bret Musser
- Regeneron Pharmaceuticals, Inc, Tarrytown, NY
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16
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Ruran HB, Bartnikas LM. Lupin allergy: Another member of the peanut gallery? Ann Allergy Asthma Immunol 2023; 130:149-150. [PMID: 36737156 DOI: 10.1016/j.anai.2022.10.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 02/04/2023]
Affiliation(s)
- Hana B Ruran
- Department of Medicine, Division of Immunology, Boston Children's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts
| | - Lisa M Bartnikas
- Department of Medicine, Division of Immunology, Boston Children's Hospital, Boston, Massachusetts; Harvard Medical School, Boston, Massachusetts.
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17
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Zhou J, Wang Y, Zhou C, Zheng L, Fu L. A ratiometric fluorescent aptasensor based on EXPAR to detect shellfish tropomyosin in food system. Food Control 2023. [DOI: 10.1016/j.foodcont.2022.109380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Jin Y, Guzmán KE, Boss AP, Gangur V, Rockwell CE. The protective effect of butylated hydroxytoluene and 3-hydroxytyrosol on food allergy in mice. Immunopharmacol Immunotoxicol 2023:1-7. [PMID: 36606674 PMCID: PMC10323041 DOI: 10.1080/08923973.2022.2160732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE To test the effect of two dietary antioxidants: butylated hydroxytoluene (BHT) and 3-hydroxytyrosol (3-HT) in experimental food allergy. METHODS BALB/c mice maintained on control diet or diet with BHT or 3-HT were sensitized with ovalbumin (OVA) or saline through transdermal exposure. Plasma OVA-specific IgE (OVA-IgE) and IgG1 (OVA-IgG1) antibody levels were determined using ELISA. Sensitized mice were challenged by oral gavage with OVA. Rectal temperature (RT) was measured before and after challenge. Mast cell degranulation was quantified by measuring the plasma levels of mouse mucosal mast cell protease-1 (mMCP-1). Flow cytometry was carried out to evaluate the percentage Th2 cells from the spleen. RESULTS Mice on either a 3-HT or BHT diet showed a significantly decreased IgE response to OVA sensitization and less severe anaphylaxis, as evidenced by a diminished drop in body temperature, attenuated clinical signs, a more rapid recovery and decreased mast cell degranulation (as determined by lower plasma mMCP-1 levels). CONCLUSION The present study indicates two dietary antioxidants: BHT and 3-HT may be protective against experimental food allergy. These results suggest 3-HT and BHT could potentially be useful for prevention of food allergy.
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Affiliation(s)
- Yining Jin
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, USA
| | - Kimberly E Guzmán
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Allison P Boss
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, USA.,Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, USA
| | - Venugopal Gangur
- Food Allergy & Immunology Laboratory, Department of Food Science and Human Nutrition, Michigan State University, East Lansing, MI, USA
| | - Cheryl E Rockwell
- Department of Pharmacology and Toxicology, College of Human Medicine, Michigan State University, East Lansing, MI, USA.,Center for Research on Ingredient Safety, Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
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19
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Abstract
Food allergy is affecting 5-8% of young children and 2-4% of adults and seems to be increasing in prevalence. The cause of the increase in food allergy is largely unknown but proposed to be influenced by both environmental and lifestyle factors. Changes in intestinal barrier functions and increased uptake of dietary proteins have been suggested to have a great impact on food allergy. In this review, we aim to give an overview of the gastrointestinal digestion and intestinal barrier function and provide a more detailed description of intestinal protein uptake, including the various routes of epithelial transport, how it may be affected by both intrinsic and extrinsic factors, and the relation to food allergy. Further, we give an overview of in vitro, ex vivo and in vivo techniques available for evaluation of intestinal protein uptake and gut permeability in general. Proteins are digested by gastric, pancreatic and integral brush border enzymes in order to allow for sufficient nutritional uptake. Absorption and transport of dietary proteins across the epithelial layer is known to be dependent on the physicochemical properties of the proteins and their digestion fragments themselves, such as size, solubility and aggregation status. It is believed, that the greater an amount of intact protein or larger peptide fragments that is transported through the epithelial layer, and thus encountered by the mucosal immune system in the gut, the greater is the risk of inducing an adverse allergic response. Proteins may be absorbed across the epithelial barrier by means of various mechanisms, and studies have shown that a transcellular facilitated transport route unique for food allergic individuals are at play for transport of allergens, and that upon mediator release from mast cells an enhanced allergen transport via the paracellular route occurs. This is in contrast to healthy individuals where transcytosis through the enterocytes is the main route of protein uptake. Thus, knowledge on factors affecting intestinal barrier functions and methods for the determination of their impact on protein uptake may be useful in future allergenicity assessments and for development of future preventive and treatment strategies.
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Affiliation(s)
| | - Katrine Lindholm Bøgh
- National Food Institute, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark.
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20
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Yang N, Maskey AR, Srivastava K, Kim M, Wang Z, Musa I, Shi Y, Gong Y, Fidan O, Wang J, Dunkin D, Chung D, Zhan J, Miao M, Sampson HA, Li XM. Inhibition of pathologic immunoglobulin E in food allergy by EBF-2 and active compound berberine associated with immunometabolism regulation. Front Immunol 2023; 14:1081121. [PMID: 36825019 PMCID: PMC9941740 DOI: 10.3389/fimmu.2023.1081121] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/02/2023] [Indexed: 02/10/2023] Open
Abstract
Introduction Food allergy is a significant public health problem with limited treatment options. As Food Allergy Herbal Formula 2 (FAHF-2) showed potential as a food allergy treatment, we further developed a purified version named EBF-2 and identified active compounds. We investigated the mechanisms of EBF-2 on IgE-mediated peanut (PN) allergy and its active compound, berberine, on IgE production. Methods IgE plasma cell line U266 cells were cultured with EBF-2 and FAHF-2, and their effects on IgE production were compared. EBF-2 was evaluated in a murine PN allergy model for its effect on PN-specific IgE production, number of IgE+ plasma cells, and PN anaphylaxis. Effects of berberine on IgE production, the expression of transcription factors, and mitochondrial glucose metabolism in U266 cells were evaluated. Results EBF-2 dose-dependently suppressed IgE production and was over 16 times more potent than FAHF-2 in IgE suppression in U266 cells. EBF-2 significantly suppressed PN-specific IgE production (70%, p<0.001) and the number of IgE-producing plasma cells in PN allergic mice, accompanied by 100% inhibition of PN-induced anaphylaxis and plasma histamine release (p<0.001) without affecting IgG1 or IgG2a production. Berberine markedly suppressed IgE production, which was associated with suppression of XBP1, BLIMP1, and STAT6 transcription factors and a reduced rate of mitochondrial oxidation in an IgE-producing plasma cell line. Conclusions EBF-2 and its active compound berberine are potent IgE suppressors, associated with cellular regulation of immunometabolism on IgE plasma cells, and may be a potential therapy for IgE-mediated food allergy and other allergic disorders.
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Affiliation(s)
- Nan Yang
- General Nutraceutical Technology, Elmsford, NY, United States.,Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Anish R Maskey
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Kamal Srivastava
- General Nutraceutical Technology, Elmsford, NY, United States.,Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Monica Kim
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Zixi Wang
- Department of Allergy, Peking Union Medical College Hospital, Beijing, China
| | - Ibrahim Musa
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States
| | - Yanmei Shi
- Academy of Chinese Medicine Sciences, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, China
| | - Yixuan Gong
- Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Ozkan Fidan
- Department of Biological Engineering, Utah State University, Logan, UT, United States.,Department of Bioengineering, Abdullah Gul University, Kayseri, Türkiye
| | - Julie Wang
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - David Dunkin
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Danna Chung
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Jixun Zhan
- Department of Biological Engineering, Utah State University, Logan, UT, United States
| | - Mingsan Miao
- Academy of Chinese Medicine Sciences, Henan University of Traditional Chinese Medicine, Zhengzhou, Henan, China
| | - Hugh A Sampson
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Xiu-Min Li
- Department of Pathology, Microbiology and Immunology, New York Medical College, Valhalla, NY, United States.,Department of Otolaryngology, New York Medical College, Valhalla, NY, United States
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21
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Zhang Z, Ma R, Xu Y, Chi L, Li Y, Mu G, Zhu X. Investigation of the Structure and Allergic Potential of Whey Protein by Both Heating Sterilization and Simulation with Molecular Dynamics. Foods 2022; 11:foods11244050. [PMID: 36553793 PMCID: PMC9778632 DOI: 10.3390/foods11244050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
As the main allergens in milk, whey proteins are heat-sensitive proteins and are widespread in dairy products and items in which milk proteins are involved as food additives. The present work sought to investigate the effect of heating sterilization on the allergenicity of α-lactalbumin (α-LA) and β-lactoglobulin (β-LG), the main composite and allergen in whey protein isolate (WPI), by combining molecular dynamics with experimental techniques for detecting the spatial structure and IgE binding capacity. The structure of WPI was basically destroyed at heat sterilization conditions of 95 °C for 5 min and 65 °C for 30 min by SDS-PAGE analysis and spectroscopic analysis. In addition, α-lactalbumin (α-LA) may be more sensitive to temperature, resulting in exposure to allergic epitopes and increasing the allergic potential, while the binding capacity of β-lactoglobulin (β-LG) to IgE was reduced under 65 °C for 30 min. By the radius of gyration (Rg) and root-mean-square deviation (RMSD) plots calculated in molecular dynamics simulations, α-LA was less structurally stable at 368 K, while β-LG remained stable at higher temperatures, indicating that α-LA was more thermally sensitive. In addition, we observed that the regions significantly affected by temperatures were associated with the capacity of allergic epitopes (α-LA 80-101 and β-LG 82-93, 105-121) to bind IgE through root-mean-standard fluctuation (RMSF) plots, which may influence the two major allergens. We inferred that these regions are susceptible to structural changes after sterilization, thus affecting the allergenicity of allergens.
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Affiliation(s)
- Zhao Zhang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Ruida Ma
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Yunpeng Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
| | - Lei Chi
- Dalian Women and Children Medical Center, Dalian 116012, China
| | - Yue Li
- Dalian Women and Children Medical Center, Dalian 116012, China
| | - Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
- Correspondence:
| | - Xuemei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China
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22
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Uchida AM, Ro G, Garber JJ, Roelstraete B, Ludvigsson JF. Prior hospital-based infection and risk of eosinophilic esophagitis in a Swedish nationwide case-control study. United European Gastroenterol J 2022; 10:999-1007. [PMID: 36254824 PMCID: PMC9731661 DOI: 10.1002/ueg2.12324] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/30/2022] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND AIMS Eosinophilic esophagitis (EoE) is an increasingly common, largely food allergen-driven disease characterized by dysphagia. Prior infections are known to associate with other loss of tolerance diseases such as autoimmunity. We aimed to determine if antecedent infection was associated with later EoE development. METHODS We performed a case-control study of all patients with biopsy-verified EoE diagnosed between 2000 and 2017 in Sweden (n = 1587) and matched to 5 general population controls (n = 7660). Cases were identified using histopathology codes from the Epidemiology Strengthened by histopathology Reports in Sweden study, a validated cohort of gastrointestinal pathology reports from all 28 pathology centers in Sweden. We used logistic regression to estimate odds ratios (ORs) and 95% confidence intervals for antecedent infections from patients seen at hospital-based outpatient clinics or inpatients. In secondary analyses, we compared EoE patients with their full siblings to further reduce residual confounding. RESULTS 564 (35.7%) EoE patients and 1793 (23.4%) matched controls had an earlier record of infection. This corresponded to a 2-fold increased risk of infections in EoE patients (OR 2.01; 95%CI: 1.78-2.27). ORs for earlier gastrointestinal or respiratory infection were 2.73 (n = 128 EoE, 268 control; 95%CI: 2.17-3.41) and 1.89 (n = 305 EoE, 960 control; 95%CI: 1.63-2.20), respectively. Having an EoE diagnosis was linked to a 3.39-fold increased odds of sepsis (n = 14 EoE, 21 control; 95%CI: 1.68-6.65). Individuals with EoE were also more likely to have had an infection compared to their non-EoE siblings (n = 427 EoE, 593 control; OR = 1.57; 95%CI = 1.30-1.89). CONCLUSION In this nationwide cohort study, prior infection, was associated with subsequent EoE. Risks were particularly high after sepsis, and gastrointestinal or respiratory infections.
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Affiliation(s)
- Amiko M. Uchida
- Division of Gastroenterology, Hepatology & NutritionUniversity of Utah School of MedicineSalt Lake CityUtahUSA,Department of PathologyUniversity of Utah School of MedicineSalt Lake CityUtahUSA,Gastrointestinal UnitMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Gabrielle Ro
- Division of Gastroenterology, Hepatology & NutritionUniversity of Utah School of MedicineSalt Lake CityUtahUSA,Department of PathologyUniversity of Utah School of MedicineSalt Lake CityUtahUSA
| | - John J. Garber
- Gastrointestinal UnitMassachusetts General HospitalHarvard Medical SchoolBostonMassachusettsUSA
| | - Bjorn Roelstraete
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden
| | - Jonas F. Ludvigsson
- Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholmSweden,Department of PediatricsÖrebro UniversityÖrebroSweden,Celiac Disease CenterDepartment of MedicineColumbia University College of Physicians and SurgeonsNew YorkNew YorkUSA
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23
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Cheon J, Cho CM, Kim HJ, Kim DH. Effectiveness of educational interventions for quality of life of parents and children with food allergy: A systematic review. Medicine (Baltimore) 2022; 101:e30404. [PMID: 36086727 PMCID: PMC10980392 DOI: 10.1097/md.0000000000030404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/26/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Educational intervention along with medical treatment is important to improve the quality of life of children with food allergies and their parents. This systematic review was designed to investigate the effects of education programs for parents and children with food allergies to provide a direction for developing an intervention program to improve their quality of life. METHODS A systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Relevant studies published between January 2010 and August 2021 were identified through a systematic search of 5 databases (PubMed, EMBASE, CINAHL, Cochrane Central Register of Controlled Trial, and Psycho Info). RESULTS A total of 2351 articles were identified. Of these, 9 met the inclusion criteria after duplicates were removed. Among these, only 2 studies, using the support and handbook provided, showed significant results on quality of life. DISCUSSION There is a lack of educational interventions for children with food allergies and their parents. Educational intervention, an essential intervention, can maximize medical treatment and improve overall quality of life. Hence, these interventions should be actively developed and applied in the future.
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Affiliation(s)
- Jooyoung Cheon
- College of Nursing, Sungshin Women’s University, Dobong-ro 76ga-gil, Gangbuk-gu, Seoul, Republic of Korea
| | - Chung Min Cho
- College of Nursing, Sungshin Women’s University, Dobong-ro 76ga-gil, Gangbuk-gu, Seoul, Republic of Korea
| | - Hyo Jin Kim
- College of Nursing, Seoul National University, 103, Daehak-ro, Jongno-gu, Seoul, Republic of Korea
| | - Dong Hee Kim
- College of Nursing, Sungshin Women’s University, Dobong-ro 76ga-gil, Gangbuk-gu, Seoul, Republic of Korea
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24
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Abstract
The aim of this study was to investigate the prevalence of self-reported food allergy among university students in China. A cluster-random sampling population-based cross-sectional study using self - administrated questionnaire was conducted with 2538 college students recruited from 6 universities in China. The questionnaire included data on age, sex, weight, height, FA, comorbid allergic diseases, family history, and understanding food allergy. Data were analyzed by SPSS 25.0 statistical software. Multivariate logistic regression analysis was performed to analyze the risk factors related to self-reported food allergy and estimate the odds ratio. A total of 2538 questionnaires were distributed to the undergraduate students and 2313 completely effective questionnaires were collected, the effective response rate was 91.1%. 834 males and 1479 females were recruited, and their age ranged from 18 to 25 years old. The prevalence of self-reported food allergy was 15.7%, and the rate of doctor-diagnosed food allergy was 8.4%. The leading food allergens included shrimp, shellfish, milk, egg, peach, mango, beef, and peanut, and the prevalence of shrimp allergy was the highest (5.8%). The main clinical manifestation included skin mucous membrane and respiratory symptoms. The prevalence of food allergy were statistically significant difference (P < .05) between different age groups, family history, sun exposure times, smoking, and antibiotic use. Over 45% college students know little about food allergy. The prevalence of self-reported food allergy among Chinese college students was high (15.7%). Shrimp was the main allergenic food, followed by shellfish, milk, egg, peach, and mango. Family history, sun exposure, obesity, and using antibiotics may be the influencing factors of food allergy. The Chinese undergraduates lacked the knowledge about food allergy. Thus, it is necessary to strengthen the health education program on food allergy for college students in China and other middle high-income nations.
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Affiliation(s)
- Hua Feng
- State Key Laboratory of Food Science and Technology, Nanchang University, School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Yong Liu
- School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Xiujuan Xiong
- Department of Pathology, Basic Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Qunying Xu
- School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Zhongwei Zhang
- School of Public Health, Nanchang University, Nanchang, Jiangxi, China
| | - Yongning Wu
- NHC Key Lab of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014 Food Safety), China National Center for Food Safety Risk Assessment (CFSA), Beijing, China
- *Correspondence: Yongning Wu, NHC Key Lab of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014 Food Safety), China National Center for Food Safety Risk Assessment (CFSA), Beijing 100022, China (e-mail: ), Yuanan Lu, Environmental Health Laboratory, Department of Public Health Sciences, University of Hawaii, USA (e-mail: )
| | - Yuanan Lu
- School of Public Health, Nanchang University, Nanchang, Jiangxi, China
- Environmental Health Laboratory, Department of Public Health Sciences, University of Hawaii, USA
- *Correspondence: Yongning Wu, NHC Key Lab of Food Safety Risk Assessment, Chinese Academy of Medical Sciences Research Unit (2019RU014 Food Safety), China National Center for Food Safety Risk Assessment (CFSA), Beijing 100022, China (e-mail: ), Yuanan Lu, Environmental Health Laboratory, Department of Public Health Sciences, University of Hawaii, USA (e-mail: )
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25
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Abstract
Food allergy is a growing concern due to its increasing world-wide incidence. Strict avoidance of allergens is a passive treatment strategy. Since the mechanisms responsible for the occurrence and development of food allergy have not yet been fully elucidated, effective individualized treatment options are lacking. In this review, we summarize the pathways through which food antigens enter the intestine and review the proposed mechanisms describing how the intestine acquires and tolerates food antigens. When oral tolerance is not established, food allergy occurs. In addition, we also discuss the contribution of commensal bacteria of the gut in shaping tolerance to food antigens in the intestinal tract. Finally, we propose that elucidating the mechanisms of intestinal uptake and tolerance of food antigens will provide additional clues for potential treatment options for food allergy.
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Affiliation(s)
- Yuhong Xiong
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Institute of Immunology, The Chinese Academy of Sciences (CAS) Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Guifeng Xu
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Mingwu Chen
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Hongdi Ma
- Department of Pediatrics, The First Affiliated Hospital of University of Science and Technology of China (USTC), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.,Institute of Immunology, The Chinese Academy of Sciences (CAS) Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
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26
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Zhang K, Zhang L, Zhou R, Zhong J, Xie K, Hou Y, Zhou P. Cow's milk α S1-casein is more sensitizing than goat's milk α S1-casein in a mouse model. Food Funct 2022; 13:6484-6497. [PMID: 35616505 DOI: 10.1039/d2fo01136k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The aim of this study was to compare the sensitization of αS1-CN in cow and goat's milk in a mouse model. Fifty mice were divided into control group, adjuvant control group, cow's milk αS1-CN sensitized group, goat's milk αS1-CN sensitized group and cross sensitized group. Cow's and goat's milk αS1-CN were used to establish a mouse sensitization model. The results showed that cow's milk αS1-CN had higher allergenicity than goat's milk αS1-CN, as can be seen in significantly increased s-IgE and Th2 cell-related inflammatory factors, the proportion of Th2, and the expression of Th2 cell-related transcription factors. Furthermore, the sensitization of cow's milk αS1-CN damaged the intestinal barrier of mice, caused the leakage of LPS, activated the TLR4-NFκB pathway, and thus resulted in the increase of IFN-γ. In addition, mice allergic to cow's milk αS1-CN were less sensitized to goat's milk αS1-CN.
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Affiliation(s)
- Kai Zhang
- State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
| | - Lina Zhang
- State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China. .,School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
| | - Ruoya Zhou
- State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China.
| | - Jinjing Zhong
- Ausnutria Hyproca Nutrition Co. Ltd., Changsha, Hunan Province 410011, China
| | - Kui Xie
- Ausnutria Hyproca Nutrition Co. Ltd., Changsha, Hunan Province 410011, China
| | - Yanmei Hou
- Ausnutria Hyproca Nutrition Co. Ltd., Changsha, Hunan Province 410011, China
| | - Peng Zhou
- State Key Laboratory of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China. .,School of Food Science & Technology, Jiangnan University, Wuxi, Jiangsu Province 214122, China
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27
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Lopes JF, Carvalho MDA, Machado NC. Labeling food allergens in the packaged food pyramid groups in Brazil: analysis of descriptions, ambiguities, and risks. Rev Paul Pediatr 2022; 40:e2021079. [PMID: 35703721 PMCID: PMC9190470 DOI: 10.1590/1984-0462/2022/40/2021079in] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/24/2021] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate allergenic labeling components of packaged foods for "What is the quality of food labels?" and "What is the group of Brazilian Food Pyramid that 'May contain' is predominant?." METHODS The photographs of 916 products were obtained, of which 518 were analyzed. Data from each label were evaluated according to Brazilian Food Pyramid Groups (i.e., Cereals, Fruits, & Vegetables; Soybean & products; Milk & dairy products; Meat & eggs; Fats & oils; and Sugars & sweets). Ten items were analyzed in each label, namely, the presence of a list of ingredients, alert phrase for allergy sufferers, grouping of the alert phrase, phrase location, uppercase phrase, the phrase in bold, the color of alert phrase contrasting to the background, adequate font size, do not claim the absence for any allergen with the ingredients, and others factors that make it difficult to read. For the second question, a structured questionnaire was completed, and products were classified into two categories, namely, "Contain" and "May contain." RESULTS The quality of the label was appropriate, and 69% of packaged foods had at least one allergen. The information "May contain" were higher in cow's milk (Cereals and Meat & eggs), soy (Soybean & products), and egg protein (Cereals). Soybean & products were the highest insecurity group. CONCLUSIONS Brazilian health professionals can count on good-quality labeling of packaged products. Consequently, they could promote patients' and parents/caregivers' education to consult the labels and manage the risks in processed foods about precautionary allergen labeling. Soybean & products were the most significant insecurity for food choices between Brazilian Pyramid Groups.
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28
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Sandhu S, Hanono M, Nagarajan S, Vastardi MA. Knowledge Assessment of Early Peanut Introduction in a New York City Population. Ann Allergy Asthma Immunol 2022; 129:380-382. [PMID: 35728745 DOI: 10.1016/j.anai.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 05/31/2022] [Accepted: 06/12/2022] [Indexed: 10/18/2022]
Affiliation(s)
- Sumeet Sandhu
- Division of Allergy and Immunology at Center for Allergy and Asthma Research, SUNY, Brooklyn Health Sciences University, Brooklyn, NY, USA; Department of Pediatrics at SUNY Downstate Medical Center, Brooklyn, NY, USA.
| | - Monique Hanono
- Department of Pediatrics at SUNY Downstate Medical Center, Brooklyn, NY, USA.
| | - Sairaman Nagarajan
- Division of Allergy and Immunology at Center for Allergy and Asthma Research, SUNY, Brooklyn Health Sciences University, Brooklyn, NY, USA
| | - Maria-Anna Vastardi
- Division of Allergy and Immunology at Center for Allergy and Asthma Research, SUNY, Brooklyn Health Sciences University, Brooklyn, NY, USA; Department of Pediatrics at SUNY Downstate Medical Center, Brooklyn, NY, USA
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29
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Fernández‐Rivas M, Gómez García I, Gonzalo‐Fernández A, Fuentes Ferrer M, Dölle‐Bierke S, Marco‐Martín G, Ballmer‐Weber BK, Asero R, Belohlavkova S, Beyer K, de Blay F, Clausen M, Datema MR, Dubakiene R, Grimshaw KEC, Hoffmann‐Sommergruber K, Hourihane JO, Jedrzejczak‐Czechowicz M, Knulst AC, Kralimarkova T, Le T, Papadopoulos NG, Popov TA, Poulsen LK, Purohit A, Seneviratne SL, Simpson A, Sinaniotis A, Turkalji M, Vázquez‐Cortés S, Vera‐Berrios RN, Muraro A, Worm M, Roberts G, van Ree R, Fernández‐Pérez C, Turner PJ, Mills ENC. Development and validation of the food allergy severity score. Allergy 2022; 77:1545-1558. [PMID: 34716996 PMCID: PMC9298738 DOI: 10.1111/all.15165] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 10/10/2021] [Indexed: 10/27/2022]
Abstract
BACKGROUND The heterogeneity and lack of validation of existing severity scores for food allergic reactions limit standardization of case management and research advances. We aimed to develop and validate a severity score for food allergic reactions. METHODS Following a multidisciplinary experts consensus, it was decided to develop a food allergy severity score (FASS) with ordinal (oFASS) and numerical (nFASS) formats. oFASS with 3 and 5 grades were generated through expert consensus, and nFASS by mathematical modeling. Evaluation was performed in the EuroPrevall outpatient clinic cohort (8232 food reactions) by logistic regression with request of emergency care and medications used as outcomes. Discrimination, classification, and calibration were calculated. Bootstrapping internal validation was followed by external validation (logistic regression) in 5 cohorts (3622 food reactions). Correlation of nFASS with the severity classification done by expert allergy clinicians by Best-Worst Scaling of 32 food reactions was calculated. RESULTS oFASS and nFASS map consistently, with nFASS having greater granularity. With the outcomes emergency care, adrenaline and critical medical treatment, oFASS and nFASS had a good discrimination (receiver operating characteristic area under the curve [ROC-AUC]>0.80), classification (sensitivity 0.87-0.92, specificity 0.73-0.78), and calibration. Bootstrapping over ROC-AUC showed negligible biases (1.0 × 10-6 -1.23 × 10-3 ). In external validation, nFASS performed best with higher ROC-AUC. nFASS was strongly correlated (R 0.89) to best-worst scoring of 334 expert clinicians. CONCLUSION FASS is a validated and reliable method to measure severity of food allergic reactions. The ordinal and numerical versions that map onto each other are suitable for use by different stakeholders in different settings.
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Affiliation(s)
- Montserrat Fernández‐Rivas
- Allergy DepartmentHospital Clínico San CarlosFacultad de MedicinaUniversidad Complutense (UCM)IdISSC, ARADyALMadridSpain
| | | | | | - Manuel Fuentes Ferrer
- Unidad de Apoyo a la InvestigaciónPreventive Medicine DepartmentHospital Clínico San CarlosIdISSCUniversidad Alfonso X El SabioMadridSpain
| | - Sabine Dölle‐Bierke
- Division of Allergy and ImmunologyDepartment of Dermatology, Venerology and AllergologyCharité—Universitätsmedizin BerlinCorporate Member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | | | - Barbara K. Ballmer‐Weber
- Department of DermatologyUniversity Hospital ZurichZurichSwitzerland,Clinic for Dermatology and AllergologyKantonsspital St GallenSt GallenSwitzerland
| | - Riccardo Asero
- Ambulatorio di AllergologiaClinica San CarloPaderno Dugnano, MilanItaly
| | | | - Kirsten Beyer
- Department of Pediatric Respiratory Medicine, Immunology and Intensive Care MedicineCharité Universitätsmedizin BerlinBerlinGermany
| | - Frédéric de Blay
- Chest Diseases DepartmentStrasbourg University HospitalFederation of Translational MedicineUniversity of StrasbourgStrasbourgFrance
| | - Michael Clausen
- Children's Hospital and Department of AllergyLandspitali University HospitalReykjavikIceland
| | - Mareen R. Datema
- Department of Experimental Immunology, and Department of Clinical Epidemiology, Biostatistics and BioinformaticsAmsterdam University Medical CenterAmsterdamThe Netherlands
| | | | - Kate E. C. Grimshaw
- Department of DieteticsSalford Royal NHS Foundation TrustSalfordUK,Clinical and Experimental SciencesFaculty of MedicineUniversity of SouthamptonSouthamptonUK
| | | | - Jonathan O’B Hourihane
- Royal College of Surgeons in IrelandChildren's Health Ireland at Temple StreetDublinIreland
| | | | - André C. Knulst
- Dept. Dermatology/AllergologyUniversity Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
| | | | - Thuy‐My Le
- Dept. Dermatology/AllergologyUniversity Medical Center UtrechtUtrecht UniversityUtrechtThe Netherlands
| | - Nikolaos G. Papadopoulos
- Allergy Dpt, 2nd Pediatric clinicUniversity of AthensAthensGreece,Division of InfectionImmunity & Respiratory MedicineUniversity of ManchesterManchesterUK
| | | | - Lars K. Poulsen
- Allergy ClinicCopenhagen University Hospital at Herlev‐GentofteCopenhagenDenmark
| | - Ashok Purohit
- Allergy DivisionChest Disease DepartmentUniversity Hospital of StrasbourgStrasbourgFrance
| | - Suranjith L. Seneviratne
- Department of Clinical Immunology and AllergyCentral Manchester and Manchester Children's University Hospitals NHS TrustManchesterUK,Institute of Immunity and TransplantationRoyal Free Hospital and University College LondonLondonUK
| | - Angela Simpson
- Division of Infection, Immunity and Respiratory MedicineSchool of Biological SciencesManchester Academic Health Science Centre, NIHR Manchester Biomedical Research Centre, and Manchester University NHS Foundation TrustThe University of ManchesterManchesterUK
| | - Atanasios Sinaniotis
- Allergy Department2nd Pediatric ClinicUniversity of AthensAthensGreece,Allergy DepartmentSotiria Chest Diseases HospitalAthensGreece
| | - Mirjana Turkalji
- Srebrnjak Children's Hospital ZagrebCatholic University of Croatia Zagreb, and Medical Faculty OsijekJ.J.Strossmayer UniversityOsijekCroatia
| | | | | | - Antonella Muraro
- Food Allergy Referral Centre Veneto RegionDepartment of Women and Child HealthPadua General University HospitalPaduaItaly
| | - Margitta Worm
- Division of Allergy and ImmunologyDepartment of Dermatology, Venerology and AllergologyCharité—Universitätsmedizin BerlinCorporate Member of Freie Universität BerlinHumboldt‐Universität zu Berlin, and Berlin Institute of HealthBerlinGermany
| | - Graham Roberts
- NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK,Clinical and Experimental Sciences and Human Development in HealthFaculty of MedicineUniversity of SouthamptonSouthamptonUK,The David Hide Asthma and Allergy Research CentreSt Mary's HospitalIsle of WightUK
| | - Ronald van Ree
- Departments of Experimental Immunology and of OtorhinoraryngologyAmsterdam University Medical CentersAmsterdamThe Netherlands
| | - Cristina Fernández‐Pérez
- Preventive Medicine DepartmentHospital Clínico San CarlosIdISSCMadridSpain,Preventive Medicine DepartmentComplejo Hospitalario Universitario Santiago de CompostelaSantiago de CompostelaSpain
| | - Paul J. Turner
- National Heart & Lung InstituteImperial College LondonLondonUK
| | - Elizabeth N. Clare Mills
- Division of Infection, Immunity and Respiratory MedicineManchester Academic Health Sciences CentreManchester Institute of BiotechnologyUniversity of ManchesterManchesterUK
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Bajzik V, DeBerg HA, Garabatos N, Rust BJ, Obrien KK, Nguyen Q, O’Rourke C, Smith A, Walker AH, Quinn C, Gersuk VH, Farrington M, Jeong D, Vickery BP, Adelman DC, Wambre E. Oral desensitization therapy for peanut allergy induces dynamic changes in peanut-specific immune responses. Allergy 2022; 77:2534-2548. [PMID: 35266148 PMCID: PMC9356972 DOI: 10.1111/all.15276] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/28/2022] [Accepted: 02/10/2022] [Indexed: 12/23/2022]
Abstract
BACKGROUND The PALISADE study, an international, phase 3 trial of peanut oral immunotherapy (POIT) with AR101, resulted in desensitization in children and adolescents who were highly allergic to peanut. An improved understanding of the immune mechanism induced in response to food allergen immunotherapy would enable more informed and effective therapeutic strategies. Our main purpose was to examine the immunological changes in blood samples from a subset of peanut-allergic individuals undergoing oral desensitization immunotherapy with AR101. METHODS Blood samples obtained as part of enrollment screening and at multiple time points during PALISADE study were used to assess basophil and CD4+ T-cell reactivity to peanut. RESULTS The absence of clinical reactivity to the entry double-blinded placebo-controlled peanut challenge (DBPCFC) was accompanied by a significantly lower basophil sensitivity and T-cell reactivity to peanut compared with DBPCFC reactors. At baseline, peanut-reactive TH2A cells were observed in many but not all peanut-allergic patients and their level in peripheral blood correlates with T-cell reactivity to peanut and with serum peanut-specific IgE and IgG4 levels. POIT reshaped circulating peanut-reactive T-cell responses in a subset-dependent manner. Changes in basophil and T-cell responses to peanut closely paralleled clinical benefits to AR101 therapy and resemble responses in those with lower clinical sensitivity to peanut. However, no difference in peanut-reactive Treg cell frequency was observed between groups. CONCLUSION Oral desensitization therapy with AR101 leads to decreased basophil sensitivity to peanut and reshapes peanut-reactive T effector cell responses supporting its potential as an immunomodulatory therapy.
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Affiliation(s)
- Veronique Bajzik
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Hannah A. DeBerg
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Nahir Garabatos
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Blake J. Rust
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | | | - Quynh‐Anh Nguyen
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Colin O’Rourke
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Alex Smith
- Aimmune Therapeutics Brisbane California USA
| | - Alex H. Walker
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Charlie Quinn
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | - Vivian H. Gersuk
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
| | | | - David Jeong
- Virginia Mason Medical Center Seattle Washington USA
| | | | | | - Erik Wambre
- Benaroya Research Institute at Virginia Mason Seattle Washington USA
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Alonzi S, Caruso TJ, Sindher SB, Cao S, Varadharajulu S, Collins WJ, Chinthrajah RS. Virtual Reality Reduces Pediatric Anxiety During Food Allergy Clinical Trials: A Pilot Randomized, Pragmatic Study. Front Allergy 2022; 2:779804. [PMID: 35387040 PMCID: PMC8974765 DOI: 10.3389/falgy.2021.779804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 12/07/2021] [Indexed: 11/24/2022] Open
Abstract
Phlebotomy procedures required in food allergy (FA) diagnosis and clinical trials often induce fear and anxiety for pediatric patients. The primary aim of this study was to determine whether virtual reality (VR) applications were effective in reducing anxiety for pediatric FA patients undergoing phlebotomy during FA clinical trials. Secondary aims assessed fear, pain, procedural compliance, and adverse events. Participants undergoing phlebotomy were enrolled and randomized to a VR group or standard of care (SOC) group for this prospective pilot randomized, pragmatic study. Participants in the VR group played interactive applications on a customized Samsung Gear VR headset and those in the SOC group received the standard of care. Participants' anxiety, fear, and pain were assessed with the Children's Anxiety Meter, Children's Fear Scale, and FACES pain scale pre, during, and post phlebotomy procedure. Compliance was assessed using the modified Induction Compliance Checklist during the procedure and compared between two groups. Forty-nine participants were randomized to VR (n = 26) and SOC (n = 23) groups. Although both the VR and SOC groups experienced a decrease in anxiety and fear from pre- to post-procedure, those in the VR group experienced less anxiety and fear during the procedure than SOC participants. Similarly, both groups experienced an increase in pain from pre- to post-procedure; however, the VR group reported less pain during the procedure than SOC. Fewer symptoms of procedural non-compliance were reported in the VR group. Interactive VR applications may be an effective tool for reducing fear, anxiety, and pain during phlebotomy for FA clinical trials.
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Affiliation(s)
- Sarah Alonzi
- Department of Psychology, University of California, Los Angeles, Los Angeles, CA, United States
| | - Thomas J. Caruso
- Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Sayantani B. Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, United States
| | - Shu Cao
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, United States
| | - Sara Varadharajulu
- Department of Medicine, University of California San Francisco School of Medicine, San Francisco, CA, United States
| | - William J. Collins
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, United States
- Department of Medicine, Division of Hospital Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - R. Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, CA, United States
- Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, CA, United States
- *Correspondence: R. Sharon Chinthrajah
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Tizek L, Redlinger E, Ring J, Eyerich K, Biedermann T, Zink A. Urban vs rural - Prevalence of self-reported allergies in various occupational and regional settings. World Allergy Organ J 2022; 15:100625. [PMID: 35145605 PMCID: PMC8802121 DOI: 10.1016/j.waojou.2022.100625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 11/08/2021] [Accepted: 01/05/2022] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Allergies have an enormous individual and economic impact worldwide and affect more than one quarter of the population in Germany. Various factors influence the development of allergies: besides genetic predisposition the environment in which a person is raised and living also plays a role. The aim of the study was to evaluate differences in allergy prevalence in relation to age, sex, occupation, and living area (settlement structures). METHODS A cross-sectional study using a paper-based questionnaire about allergies was performed at the Munich Oktoberfest 2016. Participants were divided into 4 occupational groups and compared using descriptive statistics and multiple regression. RESULTS Overall, 2701 individuals (mean age 51.9 ± 15.3 years; 53.5% women) participated in the study. The overall rate of any self-reported allergy was 27.3% in the study population, in which women were more likely to be affected than men (OR = 1.82; 95% CI [1.50; 2.22]). Compared to farmers, all other occupational groups had a higher risk of reporting pollen allergies. Participants from rural areas (OR = 0.38; 95% CI [0.26; 0.58]) and suburban areas (OR = 0.44; 95% CI [0.30; 0.64]) were significantly less affected by allergies than participants from urban areas. Around 45.2% of the participants affected by allergies reported not receiving any treatment at all. CONCLUSION Differences in the self-reported prevalence of allergies were shown for age groups, sex, living area, and occupation. Especially the reported pollen allergy prevalence ranged widely between different occupations, indicating that those individuals with an occupational exposure to pollen may have a lower risk than indoor workers. Overall, there remains a high need for sufficient treatment of allergies.
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Affiliation(s)
- Linda Tizek
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
| | - Elisa Redlinger
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
| | - Johannes Ring
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
| | - Kilian Eyerich
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
- Division of Dermatology and Venereology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Tilo Biedermann
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
| | - Alexander Zink
- Technical University of Munich, School of Medicine, Department of Dermatology and Allergy, Biedersteinerstraße 29, Munich, 80802, Germany
- Division of Dermatology and Venereology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
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Lopes JF, Carvalho MDA, Machado NC. Rotulagem de alérgenos alimentares em alimentos embalados segundo grupos alimentares da pirâmide brasileira: análise da descrição, riscos e ambiguidades. Rev paul pediatr 2022. [DOI: 10.1590/1984-0462/2022/40/2021079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
RESUMO Objetivo: Avaliar os componentes alergênicos da rotulagem de alimentos embalados e responder “Qual é a qualidade da rotulagem?” e “Qual é o grupo de alimentos em que a expressão ‘Pode conter’ é predominante?”. Métodos: Foram obtidas fotografias de 916 produtos, dos quais 518 foram analisados. Os dados dos rótulos foram avaliados de acordo com os grupos da pirâmide alimentar brasileira (Cereais, Frutas & Vegetais; Soja & Derivados; Leite & Laticínios; Carne & Ovos; Gorduras & Óleos; Açúcares & Doces). Dez itens foram analisados nos rótulos: presença de lista de ingredientes; frase de alerta para alérgicos; frase de alerta; local da frase; frase em letras maiúsculas; frase em negrito; a cor da frase de alerta contrastando com o fundo; tamanho de fonte adequado; não alegar ausência de qualquer alérgeno; outros fatores de difícil leitura. Para a segunda questão, foi respondido questionário estruturado, e os produtos classificados em categorias: “Contém” e “Pode conter”. Resultados: A qualidade do rótulo foi adequada e 69% dos alimentos embalados continham pelo menos um alérgeno. A informação “Pode conter” foi mais identificada em: proteína do leite (Cereais e Carnes e ovos), soja (Soja & derivados) e proteína do ovo (Cereais). Soja e derivados foi o grupo alimentar de maior insegurança. Conclusões: Profissionais de saúde podem contar com rotulagem de boa qualidade dos produtos embalados e, consequentemente, promover a educação de pais/cuidadores para consultar os rótulos e gerenciar os riscos em alimentos processados. Soja e produtos são os alimentos com maior insegurança entre os Grupos da Pirâmide Brasileira.
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Mu G, Zhang Z, Wang J, Jiang S, Wang H, Xu Y, Li X, Chi L, Li Y, Tuo Y, Zhu X. Antigenicity and Safety Evaluation of Lactiplantibacillus plantarum 7-2 Screened to Reduce α-Casein Antigen. Foods 2021; 11:88. [PMID: 35010214 PMCID: PMC8750821 DOI: 10.3390/foods11010088] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 12/04/2021] [Accepted: 12/21/2021] [Indexed: 11/23/2022] Open
Abstract
α-Casein (α-CN) is considered the main allergen in bovine milk. Lactic acid bacteria (LAB) fermentation can hydrolyze milk protein and therefore reduce the antigenicity. In this paper, a LAB reducing the antigenicity of casein, identified as LactiplantibacillusPlantarum 7-2 (L. plantarum 7-2), was primarily identified by screening for protein hydrolysis ability using a method involving the determination of released free amino acid with further selection for the ideal antigenicity-reducing capability by enzyme-linked immunosorbent assay (ELISA). In order to verify the capability of L. plantarum 7-2 in inhibiting antigenicity, the standard milk proteins α-LA, β-LG, α-CN, β-CN and κ-CN were cultured with L. plantarum 7-2 for 18 h; The results of SDS-PAGE show that all the bands corresponding to the full length tested proteins became unclear or completely disappeared indicating that these proteins were hydrolyzed by L. plantarum 7-2. Correspondingly, the antigenicities of α-CN and β-LG were significantly reduced. L. plantarum 7-2 demonstrated negative hemolysis and nitrate reductase capabilities and was sensitive to the commonly used antibiotics ampicillin clindamycin tetracycline chloramphenicol, and erythromycin, demonstrating that L. plantarum 7-2 could be used in dairy product fermentation to reduce the antigenicity of milk protein.
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Affiliation(s)
- Guangqing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Zhao Zhang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Jiayi Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Shujuan Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Hongxin Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Yunpeng Xu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Xinling Li
- Xinjiang Tianrun Biological Technology Co., Ltd., Urumchi 830011, China;
| | - Lei Chi
- Dalian Women and Children Medical Center, Dalian 116012, China; (L.C.); (Y.L.)
| | - Yue Li
- Dalian Women and Children Medical Center, Dalian 116012, China; (L.C.); (Y.L.)
| | - Yanfeng Tuo
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
| | - Xuemei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China; (G.M.); (Z.Z.); (J.W.); (S.J.); (H.W.); (Y.X.); (Y.T.)
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Čelakovská J, Čermákova E, Vaňková R, Andrýs C, Krejsek J. ALEX2 multiplex examination – results of specific IgE to fish and shrimps in patients suffering from atopic dermatitis. FOOD AGR IMMUNOL 2021. [DOI: 10.1080/09540105.2021.2005546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Affiliation(s)
- J. Čelakovská
- Department of Dermatology and Venereology Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - E. Čermákova
- Department of Medical Biophysic, Medical Faculty of Charles University, Hradec Králové, Czech republic
| | - R. Vaňková
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - C. Andrýs
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
| | - J. Krejsek
- Department of Clinical Immunology and Allergy, Faculty Hospital and Medical Faculty of Charles University, Hradec Králové, Czech Republic
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D'alessandro M, Pisanu F, Baldo D, Parolin C, Filippini G, Vitali B, Lanciotti R, Patrignani F. Unravelling the functional and technological potential of soy milk based microencapsulated Lactobacillus crispatus and Lactobacillus gasseri. J Funct Foods 2021; 87:104745. [DOI: 10.1016/j.jff.2021.104745] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Li Q, Tang X, Xu J, Ren X, Wang R, Jiang S. Study on alleviation effect of stachyose on food allergy through TLR2/NF-κB signal pathway in a mouse model. Life Sci 2021; 286:120038. [PMID: 34653427 DOI: 10.1016/j.lfs.2021.120038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/27/2021] [Accepted: 09/05/2021] [Indexed: 10/20/2022]
Abstract
AIMS To explore the effect on food allergy of stachyose. MAIN METHODS The egg allergen ovalbumin (OVA) was used to induce a food allergy model of BALB/c mice, and different doses of stachyose were given in process. Using enzyme-linked immunosorbent assay (ELISA) methods to detect the levels of IgE, IgG1, histamine and cytokines. And flow cytometry was used to analyze TH1/TH2 balance further. Besides, Hematoxylin-eosin (HE) staining was used to observe changes of intestinal morphology. Lastly, Reverse Transcription-Polymerase Chain Reaction (RT-qPCR) and western Blot was conducted to explore the possible mechanism. KEY FINDINGS Compared with OVA group, serum IgE and IgG1 levels in the low-dose (1mg/mouse) group and high-dose (5mg/mouse) group of stachyose were significantly reduced (P < 0.05); the level of plasma histamine was also decreased significantly (P < 0.05) and the body temperature were decreased. In all, allergic symptoms were alleviated after stachyose treatment. Furthermore, TH1/TH2 balance was improved after stachyose treatment. Lastly, the expression of TLR2 and NF-κB were increased significantly (P < 0.05) in both mRNA and protein levels after stachyose treatment. SIGNIFICANCE Food allergy was alleviated through improving TH1/TH2 balance by activating TLR2/NF-κB signal by stachyose.
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Affiliation(s)
- Qian Li
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Xinlei Tang
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Jianghao Xu
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Xingyuan Ren
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Rui Wang
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China
| | - Songsong Jiang
- College of Tourism and Culinary Science, Yangzhou University, Yangzhou, Jiangsu 225127, China.
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Perez Chacon G, Ramsay J, Brennan-Jones CG, Estcourt MJ, Richmond P, Holt P, Snelling T. Whole-cell pertussis vaccine in early infancy for the prevention of allergy in children. Cochrane Database Syst Rev 2021; 9:CD013682. [PMID: 34693993 PMCID: PMC8543786 DOI: 10.1002/14651858.cd013682.pub2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Atopic diseases are the most common chronic conditions of childhood. The apparent rise in food anaphylaxis in young children over the past three decades is of particular concern, owing to the lack of proven prevention strategies other than the timely introduction of peanut and egg. Due to reported in vitro differences in the immune response of young infants primed with whole-cell pertussis (wP) versus acellular pertussis (aP) vaccine, we systematically appraised and synthesised evidence on the safety and the potential allergy preventive benefits of wP, to inform recommendation for future practice and research. OBJECTIVES To assess the efficacy and safety of wP vaccinations in comparison to aP vaccinations in early infancy for the prevention of atopic diseases in children. SEARCH METHODS We searched the Cochrane Central Register of Controlled Trials, Ovid MEDLINE, Embase, and grey literature. The date of the search was 7 September 2020. SELECTION CRITERIA We included randomised controlled trials (RCTs) and non-randomised studies of interventions (NRSIs) that reported the occurrence of atopic diseases, and RCTs only to assess safety outcomes. To be included studies had to have at least six months follow-up, and involve children under 18 years old, who received a first dose of either wP (experimental intervention) or aP (comparator) before six months of age. DATA COLLECTION AND ANALYSIS Two review authors independently screened studies for eligibility, extracted the data, and assessed risk of bias using standard Cochrane methods. We assessed the certainty of the evidence using GRADE. Our primary outcomes were diagnosis of IgE-mediated food allergy and all-cause serious adverse events (SAEs). Secondary outcomes included: diagnosis of not vaccine-associated anaphylaxis or urticaria, diagnosis of asthma, diagnosis of allergic rhinitis, diagnosis of atopic dermatitis and diagnosis of encephalopathy. Due to paucity of RCTs reporting on the atopic outcomes of interest, we assessed a broader outcome domain (cumulative incidence of atopic disease) as specified in our protocol. We summarised effect estimates as risk ratios (RR) and 95% confidence intervals (CI). Where appropriate, we pooled safety data in meta-analyses using fixed-effect Mantel-Haenszel methods, without zero-cell corrections for dichotomous outcomes. MAIN RESULTS We identified four eligible studies reporting on atopic outcomes, representing 7333 children. Based on a single trial, there was uncertain evidence on whether wP vaccines affected the risk of overall atopic disease (RR 0.85, 95% CI 0.62 to 1.17) or asthma only (RR 1.04, 95% CI 0.59 to 1.82; 497 children) by 2.5 years old.Three NRSIs were judged to be at serious or critical risk of bias due to confounding, missing data, or both, and were ineligible for inclusion in a narrative synthesis. We identified 21 eligible studies (137,281 children) that reported the safety outcomes of interest. We judged seven studies to be at high risk of bias and those remaining, at unclear risk. The pooled RR was 0.94 for all-cause SAEs (95% CI 0.78 to 1.15; I2 = 0%; 15 studies, 38,072 children). For every 1000 children primed with a first dose of wP, 11 had an SAE. The corresponding risk with aP was 12 children (95% CI 9 to 13). The 95% CI around the risk difference ranged from three fewer to two more events per 1000 children, and the certainty of the evidence was judged as moderate (downgraded one level for imprecision). No diagnoses of encephalopathy following vaccination were reported (95% CI around the risk difference - 5 to 12 per 100,000 children; seven primary series studies; 115,271 children). The certainty of the evidence was judged as low, since this is a serious condition, and we could not exclude a clinically meaningful difference. AUTHORS' CONCLUSIONS There is very low-certainty evidence that a first dose of wP given early in infancy, compared to a first dose of aP, affects the risk of atopic diseases in children. The incidence of all-cause SAEs in wP and aP vaccinees was low, and no cases of encephalopathy were reported. The certainty of the evidence was judged as moderate for all-cause SAEs, and low for encephalopathy. Future studies should use sensitive and specific endpoints of clinical relevance, and should be conducted in settings with high prevalence of IgE-mediated food allergy. Safety endpoints should prioritise common vaccine reactions, parental acceptability, SAEs and their potential relatedness to the dose administered.
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Affiliation(s)
- Gladymar Perez Chacon
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Australia
- School of Public Health, Curtin University, Perth, Australia
| | - Jessica Ramsay
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Australia
| | | | - Marie J Estcourt
- Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Camperdown, Australia
| | - Peter Richmond
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Australia
- Division of Paediatrics, The University of Western Australia, Perth, Australia
| | - Patrick Holt
- Telethon Kids Institute, The University of Western Australia, Perth, Australia
| | - Tom Snelling
- Wesfarmers Centre of Vaccines and Infectious Diseases, Telethon Kids Institute, Perth, Australia
- Sydney School of Public Health, Faculty of Medicine and Health, University of Sydney, Camperdown, Australia
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Wang X, Zhou L, Wei G, Zhang H, Yang B. Prevalence of allergen-specific IgE in southern China: a multicenter research. Aging (Albany NY) 2021; 13:18894-18911. [PMID: 34297699 PMCID: PMC8351705 DOI: 10.18632/aging.203341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 06/29/2021] [Indexed: 02/05/2023]
Abstract
Identifying allergen distribution is meaningful and significant for effective diagnosis and treatment of allergic diseases. This study compared the allergen sensitivity in four southern China cities. We enrolled 55,432 participants (27,408 male, 28,024 female) between 2007 and 2019. The allergen-specific IgE levels were compared by the χ2 test. The five prevalent sensitivities were for mite mix (10,985, 19.82%), cockroach (4,860, 8.77%), crab (4,450, 8.03%), fish mix (3,874, 6.99%), and house dust (3,486, 6.29%). Almost all allergen sensitivities decreased with age, particularly from infant to middle aged participants (p < 0.05). An exception was Shenzhen, where food allergen positive rates remained constant in all age groups studied. The proportion of male sensitive to at least one food allergen (OR 1.130; 95% CI 1.088–1.174, p < 0.0025) or aeroallergen (OR, 1.117; 95% CI, 1.078–1.158, p < 0.0025) was higher than female in all four cities. Except for dog dander and tree mix, all aeroallergens differed significantly between seasons (p < 0.05). Liuzhou had the highest rates of food allergen- and aeroallergen-positive participants. The allergen-specific IgE distribution differed among the studied cities, with significant seasonal differences. Young age, male sex, and aeroallergens were risk factors for allergic disease.
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Affiliation(s)
- Xue'an Wang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Long Zhou
- Department of Laboratory Medicine, Chongqing University Sanxia Hospital, Chongqing 404000, China
| | - Guixi Wei
- Department of Laboratory Medicine, Liuzhou People's Hospital, Liuzhou 545000, China
| | - Hui Zhang
- Department of Laboratory Medicine, Shenzhen Second People's Hospital, Shenzhen 518048, China
| | - Bin Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
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Adams CB, Johnston WH, Deulofeut H, Leader J, Rhodes R, Yeiser M, Harris CL, Wampler JL, Hill RJ, Cooper T. Growth and tolerance of healthy, term infants fed lower protein extensively hydrolyzed or amino acid-based formula: double-blind, randomized, controlled trial. BMC Pediatr 2021; 21:323. [PMID: 34289820 PMCID: PMC8293492 DOI: 10.1186/s12887-021-02617-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 03/18/2021] [Indexed: 11/10/2022] Open
Abstract
Background Optimal protein level in hypoallergenic infant formulas is an area of ongoing investigation. The aim was to evaluate growth of healthy term infants who received extensively hydrolyzed (EH) or amino acid (AA)-based formulas with reduced protein. Methods In this prospective, multi-center, double-blind, controlled, parallel group study, infants were randomized to receive a marketed EH casein infant formula at 2.8 g protein/100 kcal (Control) or one of two investigational formulas: EH casein formula at 2.4 g protein/100 kcal (EHF) or AA-based formula at 2.4 g total protein equivalents/100 kcal (AAF). Control and EHF each had 2 × 107 CFU Lactobacillus rhamnosus GG/100 kcal. Anthropometrics were measured and recall of formula intake, tolerance, and stool characteristics was collected at 14, 30, 60, 90, 120 days of age. Primary outcome was weight growth rate (g/day) between 14 and 120 days of age (analyzed by ANOVA). Medically confirmed adverse events were recorded throughout the study. Results No group differences in weight or length growth rate from 14 to 120 days were detected. With the exception of significant differences at several study time points for males, no group differences were detected in mean head circumference growth rates. However, mean achieved weight, length, and head circumference demonstrated normal growth throughout the study period. No group differences in achieved weight or length (males and females) and head circumference (females) were detected and means were within the WHO growth 25th and 75th percentiles from 14 to 120 days of age. With the exception of Day 90, there were no statistically significant group differences in achieved head circumference for males; means remained between the WHO 50th and 75th percentiles for growth at Days 14, 30, and 60 and continued along the 75th percentile through Day 120. No differences in study discontinuation due to formula were detected. The number of participants for whom at least one adverse event was reported was similar among groups. Conclusions This study demonstrated hypoallergenic infant formulas at 2.4 g protein/100 kcal were safe, well-tolerated, and associated with appropriate growth in healthy term infants from 14 to 120 days of age. Trial registration ClinicalTrials.gov, ClinicalTrials.gov Identifier: NCT01354366. Registered 13 May 2011.
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Affiliation(s)
- Craig B Adams
- Southeastern Pediatric Associates, 364 Honeysuckle Road, Dothan, AL, 36305, USA
| | - William H Johnston
- Birmingham Pediatric Associates, 806 St Vincent's Drive, Suite 615, Birmingham, AL, 35205, USA
| | - Harold Deulofeut
- Children's Medical Association, 8430 W Broward Blvd, Plantation, FL, 33324, USA
| | - Joseph Leader
- Woburn Pediatric Associates Research Dept, 7 Alfred Street, Suite 220, Woburn, MA, 01801, USA
| | - Robbie Rhodes
- Central Arkansas Pediatric Clinic, 2301 Springhill Road, Suite 200, Benton, AR, 72019, USA
| | - Michael Yeiser
- Owensboro Pediatrics, 2200 East Parrish Ave, Owensboro, KY, 42303, USA
| | - Cheryl L Harris
- Medical Affairs and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, Evansville, IN, 47721, USA
| | - Jennifer L Wampler
- Medical Affairs and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, Evansville, IN, 47721, USA.
| | - Rebecca J Hill
- Medical Affairs and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, Evansville, IN, 47721, USA
| | - Timothy Cooper
- Medical Affairs and Scientific Affairs, Reckitt/Mead Johnson Nutrition Institute, Evansville, IN, 47721, USA
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Clarke AE, Elliott SJ, St Pierre Y, Soller L, La Vieille S, Ben-Shoshan M. Demographic characteristics associated with food allergy in a Nationwide Canadian Study. Allergy Asthma Clin Immunol 2021; 17:72. [PMID: 34274025 PMCID: PMC8285771 DOI: 10.1186/s13223-021-00572-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 06/28/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION We conducted a nationwide Canadian telephone survey on food allergy prevalence between February 2016 and January 2017, targeting vulnerable populations (New, Indigenous, and lower-income Canadians). OBJECTIVE To examine the independent effect of demographic characteristics on food allergy. METHODS Canadian households with vulnerable populations were targeted using Canadian Census data and the household respondent reported whether each household member had a perceived (self-reported) or probable (self-report of a convincing history or physician diagnosis) food allergy. The association between perceived and probable food allergy and demographic characteristics was assessed through weighted multivariable random effects logistic regressions. RESULTS Children, females, Canadian-born participants, adults with post-secondary education, and those residing in smaller households were more likely to report perceived or probable food allergy. Although immigrant parents self-reported less food allergy, Canadian-born children of Southeast/East Asian immigrant versus other immigrant or Canadian-born parents reported more food allergy. CONCLUSION We have demonstrated clear associations between demographic characteristics and food allergy, which may provide important clues to the environmental determinants of food allergy.
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Affiliation(s)
- Ann E Clarke
- Division of Rheumatology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
| | - Susan J Elliott
- Department of Geography and Environmental Management, University of Waterloo, Waterloo, ON, Canada
| | - Yvan St Pierre
- Division of Clinical Epidemiology, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada
| | - Lianne Soller
- Division of Allergy and Immunology, Department of Pediatrics, University of British Columbia, Vancouver, BC, Canada
| | - Sebastien La Vieille
- Bureau of Chemical Safety, Health Canada, Ottawa, ON, Canada.,Food Science Department, Faculty of Agricultural and Nutrition Sciences, Laval University, Quebec City, QC, Canada
| | - Moshe Ben-Shoshan
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
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Escarrer-Jaume M, Juliá-Benito JC, Quevedo-Teruel S, Del Prado AP, Sandoval-Ruballos M, Quesada-Sequeira F, Álvaro-Lozano M. Changes in epidemiology and clinical practice in IgE-mediated Allergy in children. An Pediatr (Barc) 2021; 95:56.e1-56.e8. [PMID: 34183295 DOI: 10.1016/j.anpede.2021.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/30/2021] [Indexed: 11/17/2022] Open
Abstract
In the last decades, allergic diseases have increased exponentially and although pediatric asthma prevalence is stabilizing, it is estimated around 10% in Spain. Not the same with food allergy and anaphylaxis which are clearly increasing, becoming a significant public health problem. Taking into account epidemiological trends, the European Academy of Allergy and Clinical Immunology (EAACI) estimates that in less than 15 years more than half of the European population will suffer from some type of allergic disorder. The advances in diagnostic methods in food allergy, especially component resolved diagnosis, allow us to know the patient's sensitization profile and explain possible cross reactivity, anticipate potential risk of food trangressions, and prescribe correct avoidance diet in each patient. Thus, the development of molecular biology and nanotechnology have led to the appearance of new technologies (microarrays) which facilitate the study, specially of the polysensitized patients, allowing allergen immunotherapy (AIT) to be more personalized. The latest advances in the use of biologics are having an impact, not only in disease evolution, but also in quality of life.
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Affiliation(s)
- Mercedes Escarrer-Jaume
- Unidad de Alergología y Neumología Pediátrica Clínica Juaneda, Palma de Mallorca, Spain; Centro de Salud San Agustín, Palma de Mallorca, Spain.
| | - Juan Carlos Juliá-Benito
- Centro de Salud República Argentina, Valencia, Spain; Unidad de Alergología y Neumología Pediátrica, Hospital IMED, Valencia, Spain
| | - Sergio Quevedo-Teruel
- Unidad de Alergia y Neumología Pediátrica, Servicio de Pediatría, Hospital Universitario Severo Ochoa, Leganés, Spain; Universidad Alfonso X el Sabio, Villanueva de la Cañada, Spain
| | - Ana Prieto Del Prado
- Unidad de Alergia Pediátrica, Hospital Regional Universitario de Málaga, Málaga, Spain; Instituto de Investigación Biomédica de Málaga, IBIMA, Málaga, Spain
| | - Mónica Sandoval-Ruballos
- Servicio de Alergia y Inmunología Clínica Pediátrica, Hospital Sant Joan de Déu, Barcelona, Spain
| | | | - Montserrat Álvaro-Lozano
- Servicio de Alergia y Inmunología Clínica Pediátrica, Hospital Sant Joan de Déu, Barcelona, Spain; Institut de Recerca Sant Joan de Déu, Barcelona, Spain; Universitat de Barcelona, Barcelona, Spain
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Escarrer-Jaume M, Juliá-Benito JC, Quevedo-Teruel S, Prieto Del-Prado A, Sandoval-Ruballos M, Quesada-Sequeira F, Álvaro-Lozano M. [Changes in epidemiology and clinical practice in IgE-mediated allergy in children]. An Pediatr (Barc) 2021. [PMID: 34119433 DOI: 10.1016/j.anpedi.2021.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In the last decades, allergic diseases have increased exponentially and although pediatric asthma prevalence is stabilizing, in Spain is estimated around 10%. Not the same with food allergy and anaphylaxis which are clearly increasing, becoming a public health problem of the first magnitude. Considering epidemiological trends, the European Academy of Allergy and Clinical Immunology (EAACI) estimates that in less than 15 years more than half of European population will suffer from some type of allergy. The advances in diagnostic methods in food allergy, especially component resolved diagnosis, allow us to know the patient's sensitization profile and explain the possible cross reactivity, anticipate potential risk of food transgressions, and prescribe the correct avoidance diet in each patient. Thus, the development of molecular biology and nanotechnology have led to the appearance of new technologies (microarrays) which facilitate the study, specially of the polysensitized patients, allowing allergen immunotherapy (AIT) to be more personalized. The latest advances in the use of biologics are having an impact, not only in disease evolution, but also in patients quality of life.
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Affiliation(s)
- Mercedes Escarrer-Jaume
- Unidad de Alergología y Neumología pediátrica Clínica Juaneda, Palma de Mallorca, España; Centro de salud San Agustín, Palma de Mallorca, España.
| | - Juan Carlos Juliá-Benito
- Centro de salud República Argentina, Valencia, España; Unidad de alergología y neumología pediátrica, Hospital IMED, Valencia, España
| | - Sergio Quevedo-Teruel
- Unidad de Alergia y Neumología Pediátrica, Servicio de Pediatría, Hospital Universitario Severo Ochoa, Leganés, España; Universidad Alfonso X el Sabio, Villanueva de la Cañada, España
| | - Ana Prieto Del-Prado
- Unidad de Alergia Pediátrica, Hospital Regional Universitario de Málaga, Málaga, España; Instituto de Investigación Biomédica de Málaga. IBIMA, Málaga, España
| | - Mónica Sandoval-Ruballos
- Servicio de Alergia e Inmunología Clínica Pediátrica, Hospital Sant Joan de Déu, Barcelona, España
| | | | - Montserrat Álvaro-Lozano
- Servicio de Alergia e Inmunología Clínica Pediátrica, Hospital Sant Joan de Déu, Barcelona, España; Institut de Recerca Sant Joan de Déu, Barcelona, España; Universitat de Barcelona, Barcelona, España
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Cao S, Borro M, Alonzi S, Sindher S, Nadeau K, Chinthrajah RS. Improvement in Health-Related Quality of Life in Food-Allergic Patients: A Meta-analysis. J Allergy Clin Immunol Pract 2021; 9:3705-3714. [PMID: 34089927 DOI: 10.1016/j.jaip.2021.05.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 05/20/2021] [Accepted: 05/22/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Food allergy (FA) is a growing global problem that can affect patients' health-related quality of life (HRQoL) owing to increased anxiety as well as social and economic restrictions. Interventions such as oral food challenges (OFCs) and oral immunotherapy (OIT) have been shown to improve HRQoL. However, meta-analyses and systematic synthesis of these data are lacking. OBJECTIVE To review and quantitatively synthesize potential benefits of interventions (OIT and OFC) systematically to address FA to a variety of foods. METHODS We conducted a systematic search through PubMed and Cochrane Medical Library databases and performed a meta-analysis focusing on studies assessing changes in HRQoL after OIT and/or OFCs in FA participants and caregivers from 2010 to July 2020. Random effects model and I2 statistics were used to assess overall intervention effects and heterogeneity across studies. RESULTS We included 13 publications in this meta-analysis (OIT = 7; OFCs = 6). Mean change in HRQoL scores after OIT and OFCs was -1.25 (P < .001) and -0.78 (P = .052), with a significant I2 of 87% (P < .001) and 90% (P < .001), respectively. Five OIT studies found significant improvements in HRQoL in the OIT group compared with the placebo group, with an overall standardized mean difference of -0.56 (P = .007; I2 = 42%, P = .099). CONCLUSIONS This meta-analysis showed that in FA patients, both OIT and OFCs are associated with an improvement in HRQoL. Well-designed and long-term HRQoL studies are necessary to ascertain sustained benefits of OIT and OFCs.
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Affiliation(s)
- Shu Cao
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif
| | - Matteo Borro
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif; Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy; Department of Internal Medicine, San Paolo Hospital, Savona, Italy
| | - Sarah Alonzi
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif; Department of Psychology, Loyola University, New Orleans, La
| | - Sayantani Sindher
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, Calif
| | - Kari Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, Calif
| | - R Sharon Chinthrajah
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University, Stanford University, Stanford, Calif; Division of Pulmonary and Critical Care Medicine, Stanford University, Stanford, Calif.
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Vale SL, Lobb M, Netting MJ, Murray K, Clifford R, Campbell DE, Salter SM. A systematic review of infant feeding food allergy prevention guidelines - can we AGREE? World Allergy Organ J 2021; 14:100550. [PMID: 34141050 PMCID: PMC8173304 DOI: 10.1016/j.waojou.2021.100550] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 04/14/2021] [Accepted: 04/26/2021] [Indexed: 11/23/2022] Open
Abstract
Food allergy is a significant issue worldwide, particularly in Westernised countries. There is no clear explanation why food allergy appears to have increased so rapidly in recent years, particularly in young children, hence ongoing research to identify effective primary prevention strategies. Food allergy prevention guidelines for health professionals have been developed based on existing clinical trial evidence for effective translation and implementation. As these guidelines underpin clinical practice, it is important to ensure robust processes of development. We conducted a systematic review to identify food allergy prevention guidelines for health professional use; to compare the recommendations made by the identified guideline documents; and to assess the quality of the identified guideline documents. We searched Medline, EMBASE, CINAHL, Scopus, Global Health and Guidelines International Network for the period 1990 to 13 August 2019, to identify articles referring to English-language food allergy prevention guidelines or the guidelines themselves. A grey literature search of Google Scholar and reference checking was also undertaken. The guidelines were compared for recommendation similarities and differences. An Appraisal Guidelines for Research and Evaluation (AGREE II) appraisal was undertaken to assess guideline quality. The electronic database search yielded 1121 publications and reference checking identified an additional 16 publications. After title, abstract and full text screening, data extraction was undertaken on 156 publications and with additional reference checking, 28 food allergy prevention guidelines and advice documents were identified. Comparison of the recommendations within the guidelines and advice documents indicated the greatest variation in recommendations related to exclusive breastfeeding and timing of solid food introduction. Eight of the 10 guidelines and none of the 18 advice documents met the quality threshold set by the reviewers. Overall, documents specifically termed "guidelines" scored better than advice documents when assessed using the AGREE II tool. Variation in recommendations may create confusion for health professionals and result in inconsistent advice being provided to parents, and less translation of the evidence into actual food allergy reduction in the population. Appraisal using the AGREE II tool identified that there is considerable room for improvement in the development of guidelines and advice documents for food allergy prevention. The AGREE II appraisal identified common areas of poorer quality development and/or documentation of processes to inform future guideline development. Based on this study, we recommend the use of validated guideline development tools, to direct food allergy prevention guideline review or development. Use of the AGREE II tool, to direct the review and development of guidelines, is very likely to improve guideline quality.
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Affiliation(s)
- Sandra L. Vale
- School of Allied Health, Faculty of Health and Medical Sciences, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
| | - Monique Lobb
- The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
| | | | - Kevin Murray
- School of Population and Global Health, The University of Western Australia, Perth, WA, 6009, Australia
| | - Rhonda Clifford
- School of Allied Health, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
| | | | - Sandra M. Salter
- School of Allied Health, The University of Western Australia, 35 Stirling Highway, Perth, WA, 6009, Australia
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Afrin LB, Ackerley MB, Bluestein LS, Brewer JH, Brook JB, Buchanan AD, Cuni JR, Davey WP, Dempsey TT, Dorff SR, Dubravec MS, Guggenheim AG, Hindman KJ, Hoffman B, Kaufman DL, Kratzer SJ, Lee TM, Marantz MS, Maxwell AJ, McCann KK, McKee DL, Menk Otto L, Pace LA, Perkins DD, Radovsky L, Raleigh MS, Rapaport SA, Reinhold EJ, Renneker ML, Robinson WA, Roland AM, Rosenbloom ES, Rowe PC, Ruhoy IS, Saperstein DS, Schlosser DA, Schofield JR, Settle JE, Weinstock LB, Wengenroth M, Westaway M, Xi SC, Molderings GJ. Diagnosis of mast cell activation syndrome: a global "consensus-2". Diagnosis (Berl) 2021; 8:137-152. [PMID: 32324159 DOI: 10.1515/dx-2020-0005] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Accepted: 02/15/2020] [Indexed: 02/06/2023]
Abstract
The concept that disease rooted principally in chronic aberrant constitutive and reactive activation of mast cells (MCs), without the gross MC neoplasia in mastocytosis, first emerged in the 1980s, but only in the last decade has recognition of "mast cell activation syndrome" (MCAS) grown significantly. Two principal proposals for diagnostic criteria have emerged. One, originally published in 2012, is labeled by its authors as a "consensus" (re-termed here as "consensus-1"). Another sizable contingent of investigators and practitioners favor a different approach (originally published in 2011, newly termed here as "consensus-2"), resembling "consensus-1" in some respects but differing in others, leading to substantial differences between these proposals in the numbers of patients qualifying for diagnosis (and thus treatment). Overdiagnosis by "consensus-2" criteria has potential to be problematic, but underdiagnosis by "consensus-1" criteria seems the far larger problem given (1) increasing appreciation that MCAS is prevalent (up to 17% of the general population), and (2) most MCAS patients, regardless of illness duration prior to diagnosis, can eventually identify treatment yielding sustained improvement. We analyze these proposals (and others) and suggest that, until careful research provides more definitive answers, diagnosis by either proposal is valid, reasonable, and helpful.
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Affiliation(s)
| | | | - Linda S Bluestein
- Department of Anesthesiology, Medical College of Wisconsin, Wausau, WI, USA
| | | | - Jill B Brook
- Alaska Internal Medicine and Pediatrics, Anchorage, AK, USA
| | | | - Jill R Cuni
- Division of Pediatrics, Beaver Medical Group, Banning, CA, USA
| | - William P Davey
- Department of Dermatology, University of Kentucky, Lexington, KY, USA
| | | | | | | | - Alena G Guggenheim
- Comprehensive Pain Center, Oregon Health and Science University, Portland, OR, USA
| | | | - Bruce Hoffman
- Hoffman Centre for Integrative and Functional Medicine, Calgary, Alberta, Canada
| | | | | | | | | | | | | | | | - Laurie Menk Otto
- Helfgott Research Institute, National College of Natural Medicine, Portland, OR, USA
| | - Laura A Pace
- Division of Gastroenterology, Hepatology and Nutrition, University of Utah, Salt Lake City, UT, USA
| | | | | | | | | | | | - Mark L Renneker
- Department of Family Medicine, University of California San Francisco, San Francisco, CA, USA
| | - William A Robinson
- Division of Hematology/Oncology, University of Colorado, Denver, CO, USA
| | - Aaron M Roland
- Department of Family Medicine, University of California San Francisco, San Francisco, CA, USA
| | | | - Peter C Rowe
- Department of Pediatrics, Johns Hopkins University, Baltimore, MD, USA
| | | | | | | | - Jill R Schofield
- Department of Internal Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Janet E Settle
- Department of Psychiatry, University of Colorado, Denver, CO, USA
| | | | - Martina Wengenroth
- Institute of Neuroradiology, University Hospital Lübeck, Lübeck, Germany
| | | | - Shijun Cindy Xi
- Section of Allergy and Immunology, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Mayorga C, Palomares F, Cañas JA, Pérez-Sánchez N, Núñez R, Torres MJ, Gómez F. New Insights in Therapy for Food Allergy. Foods 2021; 10:foods10051037. [PMID: 34068667 PMCID: PMC8151532 DOI: 10.3390/foods10051037] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/24/2021] [Accepted: 05/05/2021] [Indexed: 12/23/2022] Open
Abstract
Food allergy is an increasing problem worldwide, with strict avoidance being classically the only available reliable treatment. The main objective of this review is to cover the latest information about the tools available for the diagnosis and treatment of food allergies. In recent years, many efforts have been made to better understand the humoral and cellular mechanisms involved in food allergy and to improve the strategies for diagnosis and treatment. This review illustrates IgE-mediated food hypersensitivity and provides a current description of the diagnostic strategies and advances in different treatments. Specific immunotherapy, including different routes of administration and new therapeutic approaches, such as hypoallergens and nanoparticles, are discussed in detail. Other treatments, such as biologics and microbiota, are also described. Therefore, we conclude that although important efforts have been made in improving therapies for food allergies, including innovative approaches mainly focusing on efficacy and safety, there is an urgent need to develop a set of basic and clinical results to help in the diagnosis and treatment of food allergies.
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Affiliation(s)
- Cristobalina Mayorga
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga (IBIMA), 29009 Málaga, Spain; (F.P.); (J.A.C.); (R.N.)
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29071 Málaga, Spain; (N.P.-S.); (M.J.T.); (F.G.)
- Correspondence: ; Tel.: +34-951-290-224
| | - Francisca Palomares
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga (IBIMA), 29009 Málaga, Spain; (F.P.); (J.A.C.); (R.N.)
| | - José A. Cañas
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga (IBIMA), 29009 Málaga, Spain; (F.P.); (J.A.C.); (R.N.)
| | - Natalia Pérez-Sánchez
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29071 Málaga, Spain; (N.P.-S.); (M.J.T.); (F.G.)
| | - Rafael Núñez
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga (IBIMA), 29009 Málaga, Spain; (F.P.); (J.A.C.); (R.N.)
| | - María José Torres
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29071 Málaga, Spain; (N.P.-S.); (M.J.T.); (F.G.)
- Medicine Department, Universidad de Málaga-UMA, 29071 Málaga, Spain
| | - Francisca Gómez
- Allergy Clinical Unit, Hospital Regional Universitario de Málaga, 29071 Málaga, Spain; (N.P.-S.); (M.J.T.); (F.G.)
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Abstract
The practice of food allergy (FA) for clinicians has boomed, with a dramatic rise in the number of patients and families seeking care and with many advances on several fronts. The practice itself sometimes is evidence-based science and sometimes an art of pattern and phenotype recognition. This article examines the tools for diagnosis and management and therapy options available to physicians providing care for patients with FA. The article touches on pressing needs of clinicians and highlights the rapid and important movements in national and international support and advances that will have a positive impact on the field of FA.
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Affiliation(s)
- Sami L Bahna
- Allergy and Immunology Section, Louisiana State University Health Sciences Center in Shreveport, 1501 Kings Highway Rm 5-323 Shreveport, Louisiana 71130-3832, USA
| | - Amal H Assa'ad
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229.
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Nguyen AV, Lee D, Williams KM, Jackson LS, Bedford B, Kwon J, Scholl PF, Khuda SE. Effectiveness of antibody specific for heat-processed milk proteins and incurred calibrants for ELISA-based quantification of milk in dark chocolate matrices. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Dreskin SC, Koppelman SJ, Andorf S, Nadeau KC, Kalra A, Braun W, Negi SS, Chen X, Schein CH. The importance of the 2S albumins for allergenicity and cross-reactivity of peanuts, tree nuts, and sesame seeds. J Allergy Clin Immunol 2021; 147:1154-1163. [PMID: 33217410 PMCID: PMC8035160 DOI: 10.1016/j.jaci.2020.11.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 12/17/2022]
Abstract
Allergies to peanuts, tree nuts, and sesame seeds are among the most important food-related causes of anaphylaxis. Important clinical questions include: Why is there a variable occurrence of coallergy among these foods and Is this immunologically mediated? The clinical and immunologic data summarized here suggest an immunologic basis for these coallergies that is based on similarities among the 2S albumins. Data from component resolved diagnostics have highlighted the relationship between IgE binding to these allergens and the presence of IgE-mediated food allergy. Furthermore, in vitro and in vivo experiments provide strong evidence that the 2S albumins are the most important allergens in peanuts for inducing an allergic effector response. Although the 2S albumins are diverse, they have a common disulfide-linked core with similar physicochemical properties that make them prime candidates to explain much of the observed coallergy among peanuts, tree nuts, and sesame seeds. The well-established frequency of cashew and pistachio nut coallergy (64%-100%) highlights how the structural similarities among their 2S albumins may account for observed clinical cross-reactivity. A complete understanding of the physicochemical properties of the 2S albumins in peanuts, tree nuts, and sesame seeds will enhance our ability to diagnose, treat, and ultimately prevent these allergies.
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Affiliation(s)
- Stephen C Dreskin
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Denver, Aurora, Colo.
| | - Stef J Koppelman
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska, Lincoln, Neb
| | - Sandra Andorf
- Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio; Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Kari C Nadeau
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University School of Medicine, Stanford, Calif
| | - Anjeli Kalra
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Denver, Aurora, Colo
| | - Werner Braun
- Sealy Center for Structural Biology and Molecular Biophysics, The University of Texas Medical Branch, Galveston, Tex; Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, Tex
| | - Surendra S Negi
- Sealy Center for Structural Biology and Molecular Biophysics, The University of Texas Medical Branch, Galveston, Tex; Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, Tex
| | - Xueni Chen
- Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Denver, Aurora, Colo
| | - Catherine H Schein
- Department of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, Tex; Institute for Human Infection and Immunity, The University of Texas Medical Branch, Galveston, Tex.
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