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Votto M, Peters R, Riggioni C, Eigenmann P. Editorial on the virtual issue "Food allergy". Pediatr Allergy Immunol 2024; 35:e14145. [PMID: 38753420 DOI: 10.1111/pai.14145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2024] [Accepted: 05/05/2024] [Indexed: 05/18/2024]
Affiliation(s)
- Martina Votto
- Pediatric Unit, Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Rachel Peters
- Murdoch Children's Research Institute, Parkville, Victoria, Australia
- Department of Pediatrics, The University of Melbourne, Parkville, Victoria, Australia
| | - Carmen Riggioni
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore City, Singapore
- Khoo Teck Puat-National University Children's Medical Institute, National University Hospital, National University Health System, Singapore City, Singapore
| | - Philippe Eigenmann
- Pediatric Allergy Unit, Department of Pediatrics, Gynecology and Obstetrics, University Hospitals of Geneva, Geneva, Switzerland
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Warren CM, Bartell TR. Sociodemographic inequities in food allergy: Insights on food allergy from birth cohorts. Pediatr Allergy Immunol 2024; 35:e14125. [PMID: 38656700 DOI: 10.1111/pai.14125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/18/2024] [Accepted: 03/21/2024] [Indexed: 04/26/2024]
Abstract
A large and growing corpus of epidemiologic studies suggests that the population-level burden of pediatric FA is not equitably distributed across major sociodemographic groups, including race, ethnicity, household income, parental educational attainment, and sex. As is the case for more extensively studied allergic disease states such as asthma and atopic dermatitis epidemiologic data suggest that FA may be more prevalent among certain populations experiencing lower socioeconomic status (SES), particularly those with specific racial and ethnic minority backgrounds living in highly urbanized regions. Emerging data also indicate that these patients may also experience more severe FA-related physical health, psychosocial, and economic outcomes relating to chronic disease management. However, many studies that have identified sociodemographic inequities in FA burden are limited by cross-sectional designs that are subject to numerous biases. Compared with cross-sectional study designs or cohorts established later in life, birth cohorts offer advantages relative to other study designs when investigators seek to understand causal relationships between exposures occurring during the prenatal or postnatal period and the atopic disease status of individuals later in life. Numerous birth cohorts have been established across recent decades, which include evaluation of food allergy-related outcomes, and a subset of these also have measured sociodemographic variables that, together, have the potential to shed light on the existence and possible etiology of sociodemographic inequities in food allergy. This manuscript reports the findings of a comprehensive survey of the current state of this birth cohort literature and draws insights into what is currently known, and what further information can potentially be gleaned from thoughtful examination and further follow-up of ongoing birth cohorts across the globe.
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Affiliation(s)
- Christopher M Warren
- Center for Food Allergy and Asthma Research, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Tami R Bartell
- Center for Food Allergy and Asthma Research, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
- Patrick M. Magoon Institute for Healthy Communities, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois, USA
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Pongdee T, Brunner WM, Kanuga MJ, Sussman JH, Wi CI, Juhn YJ. Rural Health Disparities in Allergy, Asthma, and Immunologic Diseases: The Current State and Future Direction for Clinical Care and Research. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:334-344. [PMID: 38013156 PMCID: PMC11089647 DOI: 10.1016/j.jaip.2023.11.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/06/2023] [Accepted: 11/08/2023] [Indexed: 11/29/2023]
Abstract
Rural health disparities are well documented and continue to jeopardize the long-term health and wellness for the millions of individuals who live in rural America. The disparities observed between urban and rural residents encompass numerous morbidity and mortality measures for several chronic diseases and have been referred to as the "rural mortality penalty." Although the unmet health needs of rural communities are widely acknowledged, little is known about rural health disparities in allergies, asthma, and immunologic diseases. Furthermore, the intersection between rural health disparities and social determinants of health has not been fully explored. To achieve a more complete understanding of the factors that perpetuate rural health disparities, greater research efforts followed by improved practice and policy are needed that account for the complex social context within rural communities rather than a general comparison between urban and rural environments or focusing on biomedical factors. Moreover, research efforts must prioritize community inclusion throughout rural areas through meaningful engagement of stakeholders in both clinical care and research. In this review, we examine the scope of health disparities in the rural United States and the impact of social determinants of health. We then detail the current state of rural health disparities in the field of allergy, asthma, and immunology. To close, we offer future considerations to address knowledge gaps and unmet needs for both clinical care and research in addressing rural health disparities.
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Affiliation(s)
- Thanai Pongdee
- Division of Allergic Diseases, Mayo Clinic, Rochester, Minn.
| | - Wendy M Brunner
- Center for Rural Community Health, Bassett Research Institute, Bassett Medical Center, Cooperstown, NY
| | - Mansi J Kanuga
- Division of Allergic Diseases, Mayo Clinic Health System, Red Wing, Minn
| | | | - Chung-Il Wi
- Precision Population Science Lab, Mayo Clinic, Rochester, Minn; Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minn
| | - Young J Juhn
- Precision Population Science Lab, Mayo Clinic, Rochester, Minn; Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, Minn; Office of Mayo Clinic Health System Research, Mayo Clinic Health System, Rochester, Minn.
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Kemter AM, Patry RT, Arnold J, Hesser LA, Campbell E, Ionescu E, Mimee M, Wang S, Nagler CR. Commensal bacteria signal through TLR5 and AhR to improve barrier integrity and prevent allergic responses to food. Cell Rep 2023; 42:113153. [PMID: 37742185 PMCID: PMC10697505 DOI: 10.1016/j.celrep.2023.113153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 08/07/2023] [Accepted: 09/01/2023] [Indexed: 09/26/2023] Open
Abstract
The increasing prevalence of food allergies has been linked to reduced commensal microbial diversity. In this article, we describe two features of allergy-protective Clostridia that contribute to their beneficial effects. Some Clostridial taxa bear flagella (a ligand for TLR5) and produce indole (a ligand for the aryl hydrocarbon receptor [AhR]). Lysates and flagella from a Clostridia consortium induced interleukin-22 (IL-22) secretion from ileal explants. IL-22 production is abrogated in explants from mice in which TLR5 or MyD88 signaling is deficient either globally or conditionally in CD11c+ antigen-presenting cells. AhR signaling in RORγt+ cells is necessary for the induction of IL-22. Mice deficient in AhR in RORγt+ cells exhibit increased intestinal permeability and are more susceptible to an anaphylactic response to food. Our findings implicate TLR5 and AhR signaling in a molecular mechanism by which commensal Clostridia protect against allergic responses to food.
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Affiliation(s)
- Andrea M Kemter
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Robert T Patry
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Jack Arnold
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Lauren A Hesser
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Evelyn Campbell
- Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Edward Ionescu
- Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA
| | - Mark Mimee
- Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA; Committee on Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Shan Wang
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA
| | - Cathryn R Nagler
- Department of Pathology, The University of Chicago, Chicago, IL 60637, USA; Pritzker School of Molecular Engineering, The University of Chicago, Chicago, IL 60637, USA; Committee on Immunology, The University of Chicago, Chicago, IL 60637, USA.
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Bourgoin P, Busnel JM. Promises and Remaining Challenges for Further Integration of Basophil Activation Test in Allergy-Related Research and Clinical Practice. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:3000-3007. [PMID: 37634807 DOI: 10.1016/j.jaip.2023.08.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 08/29/2023]
Abstract
More than 20 years after having been initially proposed, the relevance and usefulness of basophil activation test (BAT) for the field of allergy research and testing were demonstrated on many occasions. Leveraging the fully open format of a flexible, whole blood-based functional assay, BAT has been shown to be equally important for fundamental research, clinical research, and diagnosis. Regardless of whether the focus of a study is on the characterization of the allergenic moiety, on the patient side, or on the study of the fundamental processes involved in the allergic disease or its treatment, BAT enables the gathering of very important insights. In spite of this, its full capabilities have yet to be leveraged. Various bottlenecks, including but not limited to assay logistics, robustness, flow cytometry access, and/or expertise, have indeed been limiting its development beyond experts and long-term users. Now, various initiatives, aiming at resolving these bottlenecks, have been launched. If successful, a broader use of BAT could then be contemplated. In such a situation, its more thorough integration in clinical practice has the potential to significantly change the allergic patient's journey.
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Affiliation(s)
- Pénélope Bourgoin
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, France
| | - Jean-Marc Busnel
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, France.
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Smith M. Historical and social science perspectives on food allergy. Clin Exp Allergy 2023; 53:902-910. [PMID: 37309241 PMCID: PMC10946501 DOI: 10.1111/cea.14360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/20/2023] [Accepted: 05/17/2023] [Indexed: 06/14/2023]
Abstract
This article provides an overview of the insights social scientists, historians and other health humanities scholars have made to our understanding of food allergies. It shows how humanities and social science scholars have tended to address three pivotal issues related to food allergies: first, they have addressed the epidemiology of food allergies, including the apparent rise in the rate of food allergies and the emergence of theories that purport to explain why food allergies may be increasing. These include theories related to changes in food consumption and the hygiene hypothesis. Second, humanities and social science scholars have researched how risks related to food allergies have been constructed, understood, experienced and mitigated. Third, humanities and social science scholars have investigated the experiences of food allergy sufferers and those who care for them, providing valuable qualitative insights that can inform how we respond to food allergy and our understanding of the aetiology of food allergy. The article concludes with three recommendations. First, there should be a more interdisciplinary approach to food allergy research that involves social scientists and health humanities scholars. Second, humanities and social sciences scholars should be more willing to unpack and scrutinise the theories put forward to explain the aetiology of food allergies, rather than accepting them at face value. And finally, humanities and social sciences scholars can play a major role in ensuring that the experiences of patients and their carers are articulated and fed into debates about food allergy, including its causes and how to respond to it.
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Chong AC, Diwakar L, Kaplan CM, Fox AT, Abrams EM, Greenhawt M, Oppenheimer JJ, Shaker MS. Provision of Food Allergy Care in the United Kingdom and United States: Current Issues and Future Directions. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:2054-2066. [PMID: 36990429 DOI: 10.1016/j.jaip.2023.03.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/11/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
Food allergy (FA) is a growing issue worldwide. The United Kingdom and United States are high-income, industrialized countries with reported increases in FA prevalence over the past few decades. This review compares delivery of FA care in the United Kingdom and United States and each country's response to the heightened demand and disparities for FA services. In the United Kingdom, allergy specialists are scarce and general practitioners (GPs) provide most allergy care. Whereas the United States has more allergists per capita than the United Kingdom, there is still a shortage of allergy services owing to the greater reliance on specialist care for FA in America and wide geographic variation in access to allergist services. Currently, generalists in these countries lack the specialty training and equipment to diagnose and manage FA optimally. Moving forward, the United Kingdom aims to enhance training for GPs so they may provide better quality frontline allergy care. In addition, the United Kingdom is implementing a new tier of semi-specialized GPs and increasing cross-center collaboration through clinical networks. The United Kingdom and United States aim to increase the number of FA specialists, which is critical at a time of rapidly expanding management options for allergic and immunologic diseases requiring clinical expertise and shared decision-making to select appropriate therapies. While these countries aim to grow their supply of quality FA services actively, further efforts to build clinical networks and perhaps recruit international medical graduates and expand telehealth services are necessary to reduce disparities in access to care. For the United Kingdom in particular, increasing quality services will require additional support from the leadership of the centralized National Health Service, which remains challenging.
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Affiliation(s)
- Albert C Chong
- Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Lavanya Diwakar
- Department of Immunology, University Hospital of North Midlands, Stoke-on-Trent, United Kingdom; Department of Health Economics, University of Birmingham, Birmingham, United Kingdom
| | - Cameron M Kaplan
- Gehr Center for Health Systems Science and Innovation, Keck School of Medicine, University of Southern California, Los Angeles, Los Angeles, Calif
| | - Adam T Fox
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Elissa M Abrams
- Section of Allergy and Clinical Immunology, University of Manitoba, Winnipeg, Manitoba, Canada; Division of Allergy and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
| | - Matthew Greenhawt
- Section of Allergy and Clinical Immunology, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - John J Oppenheimer
- Department of Internal Medicine, Pulmonary and Allergy, UMDJ Rutgers University School of Medicine, Newark, NJ
| | - Marcus S Shaker
- Section of Allergy and Immunology, Dartmouth-Hitchcock Medical Center, Lebanon, NH; Department of Pediatrics, Dartmouth Geisel School of Medicine, Hanover, NH; Department of Medicine, Dartmouth Geisel School of Medicine, Hanover, NH.
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Jacobs S, Brar K, Nowak-Wegrzyn A, Louisias M. Why You Should Care About Implicit Bias as an Allergist-Immunologist and Ways We Can Address It. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1718-1724. [PMID: 36972799 DOI: 10.1016/j.jaip.2023.03.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 02/06/2023] [Accepted: 03/12/2023] [Indexed: 03/29/2023]
Affiliation(s)
- Samantha Jacobs
- Department of Pediatrics, New York University School of Medicine, New York, NY
| | - Kanwaljit Brar
- Allergy and Immunology, Department of Pediatrics, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, NY
| | - Anna Nowak-Wegrzyn
- Allergy and Immunology, Department of Pediatrics, NYU Grossman School of Medicine, Hassenfeld Children's Hospital, New York, NY; Department of Pediatrics, Gastroenterology and Nutrition, Collegium Medicum, University of Warmia and Mazury, Olsztyn, Poland
| | - Margee Louisias
- Division of Allergy and Clinical Immunology, Brigham and Women's Hospital, Boston, Mass; Division of Immunology, Boston Children's Hospital, Boston, Mass; Department of Medicine, Harvard Medical School, Boston, Mass.
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Bjelac J, Shaker M, Greenhawt M, Kodish E. Viewing Pediatric Food Oral Immunotherapy Through an Ethical Lens-A Narrative Systematic Review. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1914-1925. [PMID: 36965706 DOI: 10.1016/j.jaip.2023.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 01/31/2023] [Accepted: 03/11/2023] [Indexed: 03/27/2023]
Abstract
BACKGROUND Food allergy remains a common problem and a lifelong condition for many children. In recent years, food allergy management has increasingly involved conversations about food oral immunotherapy (OIT). Although ethical considerations of autonomy, beneficence, nonmaleficence, and justice implicitly inform these conversations, applying these principles can be complex, particularly in young children. Families of young children assume a role of surrogate decision-maker and must balance immediate risks with the hope of longer-term benefits. OBJECTIVE To explore implementation of OIT in children through an ethical lens. METHODS To evaluate OIT through an ethical lens, we conducted a literature search to explore currently published frameworks in this area. RESULTS Evaluation of the harm principle, the basic interest principle, and the best interest principle of parental decision-making can be informative. Shared decision-making continues to be central to the process of engaging with patient-family units to individualize the best care, at the right time, and minimize decisional discord. Although OIT is well-positioned to promote health and well-being, challenges to equity, sustainability, and organizational support must be considered to improve access for appropriate patients. CONCLUSIONS Whereas approaches to food OIT may be tailored to the individual context of each patient-family unit, ethical principles must guide decisions to initiate and continue therapy. Traditional ethical principles of autonomy, beneficence, nonmaleficence, and justice remain cornerstones when considering the ethical context of OIT.
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Affiliation(s)
- Jaclyn Bjelac
- Food Allergy Center of Excellence, Center for Pediatric Allergy and Immunology, Cleveland Clinic, Cleveland, Ohio.
| | - Marcus Shaker
- Department of Pediatrics, Geisel School of Medicine at Dartmouth, Hanover, NH; Section of Allergy and Immunology, Dartmouth-Hitchcock Medical Center, Lebanon, NH
| | - Matthew Greenhawt
- Section of Allergy/Immunology, Food Challenge and Research Unit, Children's Hospital Colorado, Department of Pediatrics, University of Colorado School of Medicine, Aurora, Colo
| | - Eric Kodish
- Pediatric Hematology Oncology and Blood and Marrow Transplantation, Cleveland Clinic Children's and Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio
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Yanagida N, Sato S, Ebisawa M. Relationship between eliciting doses and the severity of allergic reactions to food. Curr Opin Allergy Clin Immunol 2023; 23:226-232. [PMID: 37185827 DOI: 10.1097/aci.0000000000000906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
PURPOSE OF REVIEW Food allergies with low thresholds are associated with frequent accidental allergic reactions. Severe reactions attributable to accidental ingestion often result in a poor quality of life. Nevertheless, no evidence of a relationship between a low threshold dose and the severity of symptoms exists. Therefore, we evaluated recent data regarding the threshold of food allergies based on the oral food challenge (OFC). We also proposed a stepwise OFC method to identify threshold and consumable doses. RECENT FINDINGS A higher specific IgE level and a history of food-induced anaphylaxis were related to low threshold doses and severe reactions during the OFC. In addition, a low threshold dose was not directly correlated with severe reactions. Performing a stepwise OFC may help safely clarify consumable doses and prevent the complete avoidance of allergy-causing foods. SUMMARY Severe food allergies with high specific IgE levels are associated with lower thresholds and more severe reactions. However, the threshold is not directly related to the severity of food-induced allergic symptoms. Identifying a well tolerated consumable dose using a stepwise OFC may help manage food allergies.
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Affiliation(s)
- Noriyuki Yanagida
- Department of Allergy, Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Kanagawa, Japan
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Xiao S, Sahasrabudhe N, Yang M, Hu D, Sleiman P, Hochstadt S, Cabral W, Gilliland F, Gauderman WJ, Martinez F, Hakonarson H, Kumar R, Burchard EG, Williams LK. Differences in Self-Reported Food Allergy and Food-Associated Anaphylaxis by Race and Ethnicity Among SAPPHIRE Cohort Participants. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2023; 11:1123-1133.e11. [PMID: 36403896 PMCID: PMC10085828 DOI: 10.1016/j.jaip.2022.10.048] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 09/13/2022] [Accepted: 10/29/2022] [Indexed: 11/18/2022]
Abstract
BACKGROUND Although food allergies are considered common, relatively little is known about disparities in food allergy by race in the United States. OBJECTIVE To evaluate differences in reported food allergy and food-associated anaphylaxis among individuals enrolled in a longitudinal cohort study from metropolitan Detroit, Michigan. METHODS Participants in the Study of Asthma Phenotypes and Pharmacogenomic Interactions by Race-Ethnicity (SAPPHIRE) were asked about food allergies, including the inciting food and associated symptoms. Individuals were considered to have food-associated anaphylaxis if symptoms coincided with established clinical criteria. Logistic regression was used to assess whether race difference persisted after adjusting for and stratifying by potential confounders. African genetic ancestry was individually estimated among African American SAPPHIRE participants to assess whether ancestry was associated with food allergy. RESULTS Within the SAPPHIRE cohort, African American participants were significantly more likely to report food allergy (26.1% vs 17%; P = 3.47 × 10-18) and have food-associated anaphylactic symptoms (12.7% vs 7%; P = 4.65 × 10-14) when compared with European American participants. Allergy to seafood accounted for the largest difference (13.1% vs 4.6%; P = 1.38 × 10-31). Differences in food allergy by race persisted after adjusting for potential confounders including asthma status. Among African American participants, the proportion of African ancestry was not associated with any outcome evaluated. CONCLUSION Compared with European Americans, African Americans appear to be at higher risk for developing food allergy and food-associated anaphylaxis, particularly with regard to seafood allergy. The lack of association with genetic ancestry suggests that socioenvironmental determinants may play a role in these disparities.
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Affiliation(s)
- Shujie Xiao
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich
| | - Neha Sahasrabudhe
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich
| | - Mao Yang
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich
| | - Donglei Hu
- Department of Medicine, University of California San Francisco, San Francisco, Calif
| | - Patrick Sleiman
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Samantha Hochstadt
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich
| | - Whitney Cabral
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich
| | - Frank Gilliland
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - W James Gauderman
- Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, Calif
| | - Fernando Martinez
- Arizona Respiratory Center and Department of Pediatrics, University of Arizona, Tucson, Ariz
| | - Hakon Hakonarson
- Center for Applied Genomics, Children's Hospital of Philadelphia, Philadelphia, Pa; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pa
| | - Rajesh Kumar
- Department of Pediatrics, Northwestern University Feinberg School of Medicine, Chicago, Ill
| | - Esteban G Burchard
- Department of Medicine, University of California San Francisco, San Francisco, Calif; Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, Calif
| | - L Keoki Williams
- Department of Internal Medicine, Center for Individualized and Genomic Medicine Research (CIGMA), Henry Ford Health System, Detroit, Mich.
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Kaman K, Dhodapkar M, Shabanova V, McCollum S, Factor J, Leeds S. Validated anxiety assessments among pediatric patients with peanut allergy on oral immunotherapy. Ann Allergy Asthma Immunol 2023; 130:657-663. [PMID: 36738780 DOI: 10.1016/j.anai.2023.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/24/2023] [Accepted: 01/24/2023] [Indexed: 02/05/2023]
Abstract
BACKGROUND Although efficacy, safety, and quality of life measures associated with peanut oral immunotherapy (OIT) have been studied, the relationship between peanut OIT and clinical anxiety has not yet been evaluated. The latter is important to help providers and families have an improved shared medical decision discussion around the benefits of initiating OIT. OBJECTIVE To investigate the relationship between undergoing OIT and anxiety in patients with peanut allergy. METHODS In this prospective cross-sectional cohort study, using validated and age-appropriate anxiety scales administered with electronic survey questionnaires, we used generalized linear regressions to compare anxiety between patients undergoing OIT and similar patients with peanut allergy but not on OIT (controls). RESULTS In the younger cohort (<7 years, n = 80), there was generally a low prevalence of diagnosable anxiety across patients on OIT and controls. In the older cohort (>7 years, n = 125), there was a higher prevalence of anxiety but no clinically meaningful difference between anxiety scores of patients on OIT and controls. In the older cohort, patients with asthma were more likely to have higher mean anxiety scores (P = .04), as were female patients compared with male patients (P = .004). A subanalysis of separation anxiety scores in the older cohort revealed that younger age (7-12 years vs >12 years, P < .001), non-White race (P = .04), and eczema (P = .02) were found to be meaningful predictors of higher scores. A subanalysis of social anxiety on the older cohort pointed toward non-White race as a meaningful predictor of higher scores (P < .02). CONCLUSION The clinical implications of these findings suggest that allergists should particularly consider screening children with food allergy for anxiety and anxiety subtypes among patients who are non-White, female, or have asthma.
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Affiliation(s)
- Kelsey Kaman
- Connecticut Asthma and Allergy Center, West Hartford, Connecticut.
| | | | | | | | - Jeffrey Factor
- Connecticut Asthma and Allergy Center, West Hartford, Connecticut; New England Food Allergy Treatment Center, West Hartford, Connecticut
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Udemgba C, Sarkaria SK, Gleeson P, Bryant-Stephens T, Ogbogu PU, Khoury P, Apter AJ. New considerations of health disparities within allergy and immunology. J Allergy Clin Immunol 2023; 151:314-323. [PMID: 36503854 PMCID: PMC9905264 DOI: 10.1016/j.jaci.2022.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 12/13/2022]
Abstract
The pandemic, political upheavals, and social justice efforts in our society have resulted in attention to persistent health disparities and the urgent need to address them. Using a scoping review, we describe published updates to address disparities and targets for interventions to improve gaps in care within allergy and immunology. These disparities-related studies provide a broad view of our current understanding of how social determinants of health threaten patient outcomes and our ability to advance health equity efforts in our field. We outline next steps to improve access to care and advance health equity for patients with allergic/immunologic diseases through actions taken at the individual, community, and policy levels, which could be applied outside of our field. Key among these are efforts to increase the diversity among our trainees, providers, and scientific teams and enhancing efforts to participate in advocacy work and public health interventions. Addressing health disparities requires advancing our understanding of the interplay between social and structural barriers to care and enacting the needed interventions in various key areas to effect change.
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Affiliation(s)
- Chioma Udemgba
- National Institute of Allergic and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Sandeep K Sarkaria
- Section of Allergy and Immunology, Department of Pulmonary & Critical Care, Case Western Reserve University, University Hospitals Cleveland Medical Center, Cleveland, Ohio
| | - Patrick Gleeson
- Section of Allergy & Immunology, Division of Pulmonary, Allergy, & Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Tyra Bryant-Stephens
- Department of Pediatrics, Division of General Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa
| | - Princess U Ogbogu
- Division of Pediatric Allergy, Immunology, and Rheumatology, University Hospitals Rainbow Babies and Children's Hospital, Cleveland, Ohio; Case Western Reserve University School of Medicine, Cleveland, Ohio
| | - Paneez Khoury
- National Institute of Allergic and Infectious Diseases, National Institutes of Health, Bethesda, Md
| | - Andrea J Apter
- Section of Allergy & Immunology, Division of Pulmonary, Allergy, & Critical Care Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pa.
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14
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Cushman GK, Durkin K, Noga R, Cooke F, Herbert L, Esteban C, McQuaid EL. Psychosocial functioning in pediatric food allergies: A scoping review. J Allergy Clin Immunol 2023; 151:29-36. [PMID: 36195171 DOI: 10.1016/j.jaci.2022.09.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 09/01/2022] [Accepted: 09/20/2022] [Indexed: 02/04/2023]
Abstract
The psychosocial burden of food allergy (FA) can significantly affect the lives of pediatric patients and their families. A comprehensive understanding of the state of the literature on psychosocial functioning is imperative to identify gaps that may affect clinical care and future research. This review characterizes the current literature on psychosocial functioning in pediatric patients with FA and their caregivers, siblings, and families. A literature search of 5 databases (PubMed, Ovid MEDLINE, PsycINFO, Web of Science, and Embase) was conducted to identify original research articles and abstracts on psychosocial functioning of patients with FA who were aged 0 to 18 years and their caregivers, siblings, and families. A total of 257 studies met the inclusion criteria. The majority of studies examined child or caregiver psychosocial functioning, with child and caregiver quality of life examined most frequently. Most studies utilized quantitative and cross-sectional methods and inconsistently reported participant race and ethnicity. Existing research on psychosocial functioning in pediatric FA may not be generalizable to patients of color and families and siblings. Future research should diversify recruited samples regarding race, ethnicity, and country of origin; examine psychosocial functioning longitudinally; examine constructs beyond quality of life; and adopt a biopsychosocial approach by considering the interplay among psychosocial functioning, disease burden, and social contexts.
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Affiliation(s)
- Grace K Cushman
- Department of Psychiatry and Human Behavior, Division of Clinical Psychology, Alpert Medical School of Brown University, Providence, RI.
| | - Kristine Durkin
- Department of Psychiatry and Human Behavior, Division of Clinical Psychology, Alpert Medical School of Brown University, Providence, RI
| | - Rebecca Noga
- Bradley/Hasbro Children's Research Center, Rhode Island Hospital/Hasbro Children's Hospital, Providence, RI
| | - Frances Cooke
- Division of Psychology and Behavioral Health, Children's National Hospital, Washington, DC
| | - Linda Herbert
- Division of Psychology and Behavioral Health, Children's National Hospital, Washington, DC; Department of Pediatrics, George Washington University School of Medicine, Washington, DC
| | - Cynthia Esteban
- Department of Pediatrics, Division of Allergy and Immunology, Alpert Medical School of Brown University, Providence, RI
| | - Elizabeth L McQuaid
- Department of Psychiatry and Human Behavior, Division of Clinical Psychology, Alpert Medical School of Brown University, Providence, RI
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Disparities in the Diagnosis and Management of Anaphylaxis. Curr Allergy Asthma Rep 2023; 23:13-19. [PMID: 36454450 DOI: 10.1007/s11882-022-01053-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2022] [Indexed: 12/03/2022]
Abstract
PURPOSE OF REVIEW The goal of this review is to characterize health disparities impacting the recognition and treatment of anaphylaxis. RECENT FINDINGS Previous research has identified major health disparities related to atopic conditions including asthma, atopic dermatitis, and food allergies (FA); however, disparities related to anaphylaxis have yet to be examined in depth. We found widespread health disparities in the incidence and severity of anaphylaxis, as well as in the management of allergies (particularly food allergies) that place individuals at risk of anaphylaxis. Sociodemographic factors are associated with numerous negative health outcomes related to anaphylaxis. We highlight several key steps that must be taken to address these disparities.
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Abstract
PURPOSE OF REVIEW Social determinants of health (SDH) are factors that affect patient health outcomes outside the hospital. SDH are "conditions in the environments where people are born, live, learn, work, play, worship, and age that affect a wide range of health, functioning, and quality-of-life outcomes and risks." Current literature has shown SDH affecting patient reported outcomes in various specialties; however, there is a dearth in research relating spine surgery with SDH. The aim of this review article is to identify connections between SDH and post-operative outcomes in spine surgery. These are important, yet understudied predictors that can impact health outcomes and affect health equity. RECENT FINDINGS Few studies have shown associations between SDH pillars (environment, race, healthcare, economic, and education) and spine surgery outcomes. The most notable relationships demonstrate increased disability, return to work time, and pain with lower income, education, environmental locations, healthcare status and/or provider. Despite these findings, there remains a significant lack of understanding between SDH and spine surgery. Our manuscript reviews the available literature comparing SDH with various spine conditions and surgeries. We organized our findings into the following narrative themes: 1) education, 2) geography, 3) race, 4) healthcare access, and 5) economics.
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Tanno LK, Demoly P. Food allergy in the World Health Organization's International Classification of Diseases (ICD)-11. Pediatr Allergy Immunol 2022; 33:e13882. [PMID: 36433855 PMCID: PMC9828038 DOI: 10.1111/pai.13882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/17/2022]
Abstract
There are increasing global data regarding the prevalence of food allergy and food-induced anaphylaxis. However, knowledge in morbidity and mortality epidemiological data is still not optimal, and international comparable standards remain poorly accessed. This information could in turn support better clinical practice and possibly prevent future severe reactions and avoidable fatalities. The International Classification of Diseases (ICD) is the standard diagnostic tool used for epidemiology, health management, and clinical purposes supported by the World Health Organization (WHO). It is also used to determine health care payment and reimbursement of providers and health care services in hospitals. Thanks to the academic and technical efforts under the ALLERGY in ICD-11 initiative the pioneer "Allergy and hypersensitivity conditions" section has been built under the "Disorders of the Immune System" chapter of the ICD-11. The "Food hypersensitivity" (FH) subsection is classified under the "Complex allergic or hypersensitivity conditions" section and "Food-induced anaphylaxis" is under the "Anaphylaxis" section. In order to inform the development of strategies to reduce preventable FHs/food allergies, the burden of disease in different healthcare settings and patient populations and their common etiologies need to be understood. Besides, greater specificity regarding clinical conditions and services delivered will provide payers, policy makers, and providers with better information to make major refinements to countries payment and reimbursement systems, including the design and implementation of pay-for-performance program.The new classification addressed to FHs will enable the collection of more accurate epidemiological data to support quality management of patients with FHs/food allergies, and better facilitate health care planning and decision-making and public health measures to prevent and reduce their morbidity and mortality. The improved logic and standardized definitions through the ICD-11 (and other WHO classifications) will also facilitate international comparisons of quality care and the sharing of best practice globally.
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Affiliation(s)
- Luciana Kase Tanno
- Division of Allergy, Department of Pneumology, Allergology and Oncology, University Hospital of Montpellier, Montpellier, France.,Institut Desbrest d'Epidémiologie et de Santé Publique, UMR UA-11, University of Montpellier - INSERM, Montpellier, France.,WHO Collaborating Centre on Scientific Classification Support, Montpellier, France
| | - Pascal Demoly
- Division of Allergy, Department of Pneumology, Allergology and Oncology, University Hospital of Montpellier, Montpellier, France.,Institut Desbrest d'Epidémiologie et de Santé Publique, UMR UA-11, University of Montpellier - INSERM, Montpellier, France.,WHO Collaborating Centre on Scientific Classification Support, Montpellier, France
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Early Introduction of Allergenic Foods and the Prevention of Food Allergy. Nutrients 2022; 14:nu14132565. [PMID: 35807745 PMCID: PMC9268235 DOI: 10.3390/nu14132565] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/01/2022] [Accepted: 06/09/2022] [Indexed: 02/04/2023] Open
Abstract
The increasing prevalence of food allergies is a growing public health problem. For children considered high risk of developing food allergy (particularly due to the presence of other food allergies or severe eczema), the evidence for the early introduction of allergenic foods, and in particular peanut and egg, is robust. In such cases, the consensus is clear that not only should such foods not be delayed, but that they should be introduced at approximately 4 to 6 months of age in order to minimize the risk of food allergy development. The early introduction of allergenic foods appears to be an effective strategy for minimizing the public health burden of food allergy, though further studies on the generalizability of this approach in low-risk populations is needed.
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The US population-level burden of cow's milk allergy. World Allergy Organ J 2022; 15:100644. [PMID: 35539895 PMCID: PMC9046619 DOI: 10.1016/j.waojou.2022.100644] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/28/2022] [Accepted: 03/10/2022] [Indexed: 11/21/2022] Open
Abstract
Background Cow's milk is a food allergen of public health importance both in the United States and globally. Its natural history and epidemiology have been most studied among infants and young children, but the public health burden it places on adults and older pediatric populations remains unclear. This study comprehensively characterizes the US population-level burden of cow's milk allergy (CMA), including its prevalence, severity, health care utilization, psychosocial impact, natural history, and other associated factors-including ability to tolerate extensively heated milk products-within a large, nationally-representative survey sample of US households. Methods A cross-sectional survey was administered via web and telephone. Population level inference was based on data collected from participants recruited from National Opinion Research Center (NORC) at the University of Chicago's probability-based AmeriSpeak panel. Established dual-sample complex survey calibration methods were used to augment this sample with additional participants recruited through Survey Sampling International to increase the precision of the resulting estimates. In total, surveys were administered to a nationally representative sample of 51 819 US households from October 1, 2015, through September 31, 2016. Self-report responses from 40 453 adults and parent-proxy report for 38 408 children were analyzed. Results Analyzing survey responses from 78 851 individuals, an estimated 4.7% (95% CI, 4.4%-4.9%) of the US population reported current CMA, whereas 1.9% (95% CI, 1.8%-2.1%) met symptom-report criteria for convincing IgE-mediated allergy. An estimated 0.9% (95% CI, 0.8%-1.0%) had CMA that met convincing symptom-report criteria and was physician diagnosed. Female and White respondents were more likely to report outgrowing CMA relative to males and those reporting other races and ethnicities. Individuals with CMA who reported tolerance to baked milk products were less likely to report severe reaction histories (33.5% vs 42.7%; p = .03), a lifetime history of food allergy-related emergency department visits (43.4% vs. 55.8%; p = .005), and treating a milk-allergic reaction with epinephrine (10.6 vs. 18.9%; p = .003). These individuals also exhibited less psychosocial burden on the validated Food Allergy Independent Measure (FAIM) than their counterparts with CMA who were allergic to baked forms of milk. Conclusion These data indicate a discrepancy in reported rates of allergy to cow's milk among the US general population ranging from approximately 1 in 20 with reported CMA to fewer than 1 in 50 with physician-confirmed CMA. However, they suggest a substantial population-level burden of CMA, including substantial healthcare utilization, psychosocial burden and nutritional impacts-particularly among the approximately 30% of individuals with CMA who cannot tolerate baked forms of milk.
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Nagendran S, Patel N, Turner PJ. Oral immunotherapy for food allergy in children: is it worth it? Expert Rev Clin Immunol 2022; 18:363-376. [PMID: 35285356 DOI: 10.1080/1744666x.2022.2053675] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Oral immunotherapy (OIT) is effective at inducing desensitization in food-allergic individuals, and is a valid therapeutic option for those allergic to peanut, cow's milk and egg. However, there is a high rate of dose-related adverse events, and at least one fatality to OIT has been reported. AREAS COVERED We provide an update on the broader framework of issues which will impact on the availability and uptake of OIT. EXPERT OPINION The need for standardized products remains controversial. A licensed product exists for peanut-OIT, but OIT can also be safely achieved using peanut-containing foods at much lower cost. For other allergens, OIT can only be done with non-pharma products - something which has been done safely for over 2 decades. There is a need to develop personalized protocols for OIT, particularly for the 20% of patients unable to tolerate standard OIT. Cost-effectiveness is dependent on improved quality of life, but evidence for this is currently lacking, and is a key evidence gap. OIT is likely to be cost-effective, particularly if noncommercial products are used. There may be a trade-off: in patients with lower reaction thresholds, a commercial product may be needed for initial updosing, until a level of desensitization is achieved when they can be switched to natural food products.
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Affiliation(s)
| | - Nandinee Patel
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Paul J Turner
- National Heart & Lung Institute, Imperial College London, London, UK
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21
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Establishment of an Epicutaneously Sensitized Murine Model of Shellfish Allergy and Evaluation of Skin Condition by Raman Microscopy. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12073566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background: Shellfish allergy is one of the most common food allergies. Recent studies have shown that sensitization to allergens via the skin is involved in the development of food allergies. In this study, a mouse model of shrimp allergy was generated by epicutaneous sensitization and used to identify skin conditions associated with susceptibility to sensitization. Methods: Four-week-old female BALB/c mice were sensitized by repeated application of 0.1 mg of tropomyosin to tape-stripped skin on days 0, 7, and 15, followed by a challenge on days 28 and 35. Results: Epicutaneously sensitized mice exhibited higher serum levels of tropomyosin-specific IgE on day 15 than control mice. After the oral challenge, model mice had higher anaphylaxis scores and lower rectal temperature. After three tape-strip treatments for sensitization, the skin was analyzed by Raman microscopy. The sensitized mice exhibited lower relative intensities of Raman bands at 399, 915, and 1073 cm−1 than control mice, which could be helpful noninvasive markers in screening for potential sensitization via the skin. Conclusions: An epicutaneous sensitization shellfish allergy model was generated. This model will be useful in studies to elucidate the pathogenesis of skin sensitization. Raman microscopy may also be valuable for capturing subtle skin changes leading to sensitization.
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22
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Maillard Reaction Induced Changes in Allergenicity of Food. Foods 2022; 11:foods11040530. [PMID: 35206007 PMCID: PMC8870895 DOI: 10.3390/foods11040530] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/09/2022] [Accepted: 02/11/2022] [Indexed: 01/27/2023] Open
Abstract
Food allergy is increasing in prevalence, posing aheavier social and financial burden. At present, there is still no widely accepted treatment for it. Methods to reduce or eliminate the allergenicity of trigger foods are urgently needed. Technological processing contributes to producing some hypoallergenic foods. Among the processing methods, the Maillard reaction (MR) is popular because neither special chemical materials nor sophisticated equipment is needed. MR may affect the allergenicity of proteins by disrupting the conformational epitope, disclosing the hidden epitope, masking the linear epitope, and/or forming a new epitope. Changes in the allergenicity of foods after processing are affected by various factors, such as the characteristics of the allergen, the processing parameters, and the processing matrix, and they are therefore variable and difficult to predict. This paper reviews the effects of MR on the allergenicity of each allergen group from common allergenic foods.
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Vincent E, Bilaver LA, Fierstein JL, Thivalapill N, Pappalardo AA, Coleman A, Robinson A, Sharma HP, Brewer A, Assa'ad AH, Jiang J, Hultquist HW, Kulkarni AJ, Choi J, Mahdavinia M, Pongracic J, Tobin MC, Warren C, Gupta RS. Associations of Food Allergy-Related Dietary Knowledge, Attitudes, and Behaviors Among Caregivers of Black and White Children With Food Allergy. J Acad Nutr Diet 2021; 122:797-810. [PMID: 34871793 PMCID: PMC10150664 DOI: 10.1016/j.jand.2021.11.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 11/21/2021] [Accepted: 11/30/2021] [Indexed: 01/31/2023]
Abstract
BACKGROUND The increasing prevalence of pediatric food allergy (FA) in the United States has disproportionately affected non-Hispanic Black youth. However, racial and other socioeconomic disparities in FA management among caregivers of children with FA remain unclear. OBJECTIVE To determine associations between socioeconomic, clinical, and health care factors and FA-related knowledge, attitudes, and behaviors among caregivers of Black and White children with FA. DESIGN Cross-sectional survey analysis from the Food Allergy Outcomes Related to White and African American Racial Differences Study. PARTICIPANTS/SETTINGS Longitudinal cohort of caregivers of 385 Black and White children with FA ages birth to 12 years residing in Chicago, Illinois, Cincinnati, Ohio, and Washington, DC from 2017 to March 2021. MAIN OUTCOME MEASURES There were 3 primary outcomes of interest: (1) FA knowledge assessed by scores from the Knowledge Survey, (2) FA-related attitudes assessed by newly developed survey, and (3) food-related behaviors assessed by the FORWARD Diet and Purchasing Habit Surveys completed 6 months postenrollment. ANALYSES Multivariable linear and logistic regression. RESULTS The overall response rate to the 6-month postenrollment survey was 51.3% (385 of 751). White caregivers represented 69.4% of the participants. Black race was associated with a 1.5-point mean decrease in FA knowledge score (95% CI: -2.2 to -0.7) compared with White caregivers, and a graduate degree or bachelor's degree was associated with associated with a 1.7-point mean increase (95% CI: 0.8-2.7) and 1.1-point mean increase (95% CI: 0.2-2.0) in FA knowledge score, respectively, compared with caregivers who had less than a bachelor's degree. Multiple FAs and ever visited the emergency department for a food-related allergic reaction were also associated with higher levels of FA knowledge. Ever visited the emergency department for FA was also associated with higher odds of 2 measures of FA attitudes reflecting parental anxiety. Greater FA knowledge scores were consistently associated with lower odds of several FA-related food purchasing and eating behaviors assumed to have elevated risk of FA. Eating food prepared at school was the only FA behavior associated with race. Compared with White children, Black children were 2.5 times more likely to eat school-prepared foods (95% CI: 1.2-5.6). CONCLUSIONS Findings from this study identified socioeconomic, racial, and clinical factors associated with caregivers' FA-related knowledge, attitudes, and behaviors, but further research is warranted to better understand these relationships.
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Affiliation(s)
- Eileen Vincent
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois.
| | - Lucy A Bilaver
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | | | - Neil Thivalapill
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | | | - Amaziah Coleman
- Division of Allergy and Immunology, Children's National Health Systems, Washington, DC; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington DC
| | - Adam Robinson
- Division of Allergy and Immunology, Children's National Health Systems, Washington, DC
| | - Hemant P Sharma
- Division of Allergy and Immunology, Children's National Health Systems, Washington, DC; Department of Pediatrics, George Washington University School of Medicine and Health Sciences, Washington DC
| | - Audrey Brewer
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois; Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Amal H Assa'ad
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; University of Cincinnati, Cincinnati, Ohio
| | - Jialing Jiang
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | - Haley W Hultquist
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | - Ashwin J Kulkarni
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | - Johnathan Choi
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | - Mahboobeh Mahdavinia
- Department of Internal Medicine, Division of Allergy & Immunology, Rush University Medical Center, Chicago, Illinois
| | - Jacqueline Pongracic
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois; Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Mary C Tobin
- Department of Internal Medicine, Division of Allergy & Immunology, Rush University Medical Center, Chicago, Illinois
| | - Christopher Warren
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
| | - Ruchi S Gupta
- Northwestern University Feinberg School of Medicine, Center for Food Allergy and Asthma Research, Chicago, Illinois
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Abstract
PURPOSE OF REVIEW B cells are known in food allergy pathogenesis for their production of IgE but their roles in the development of tolerance to foods are not well understood. Further understanding of B-cell biology in the context of food allergy is essential for the creation of effective prevention strategies and therapies. RECENT FINDINGS The majority of allergen-specific IgE in humans appears to arise from antigen-experienced B cells that have already undergone class switch recombination to other antibody isotypes, such as IgG1, and can also be produced by cells class switching to IgE locally in the gastrointestinal tract. Allergen-specific IgG4 can have protective effects in individuals and is associated with tolerance. Regulatory B cells, which can produce allergen-specific IgG4, are reduced in food-allergic individuals and may also be an important component of tolerance. Therapeutic approaches that block the generation and action of IgE and that enhance tolerizing immune responses are being evaluated for the treatment of food allergy. SUMMARY B cells play several roles in the development of food allergy versus tolerance. Their functions may translate into the care of food allergy as biomarkers or therapeutic targets and can be employed in other atopic diseases to better understand their pathogenesis and create new avenues for treatment.
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Affiliation(s)
- Chioma Udemgba
- Allergy and Clinical Immunology Fellowship Program, National Institute of Allergy and Infectious Diseases, Bethesda, MD
| | - Adora Lin
- Center for Cancer and Immunology Research, Children’s National Research Institute, Washington, DC
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Protudjer JLP, Greenhawt M, Abrams EM. Race and Ethnicity and Food Allergy: Remaining Challenges. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:3859-3861. [PMID: 34749943 DOI: 10.1016/j.jaip.2021.07.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 05/31/2021] [Accepted: 07/07/2021] [Indexed: 11/17/2022]
Affiliation(s)
- Jennifer L P Protudjer
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Man, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Man, Canada
| | - Matthew Greenhawt
- Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colo
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Man, Canada; Children's Hospital Research Institute of Manitoba, Winnipeg, Man, Canada; Department of Pediatrics, Division of Allergy and Immunology, University of British Columbia, Vancouver, BC, Canada.
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Turner PJ, Andoh-Kesson E, Baker S, Baracaia A, Barfield A, Barnett J, Brunas K, Chan CH, Cochrane S, Cowan K, Feeney M, Flanagan S, Fox AT, George L, Gowland MH, Heeley C, Kimber I, Knibb R, Langford K, Mackie A, McLachlan T, Regent L, Ridd M, Roberts G, Rogers A, Scadding G, Stoneham S, Thomson D, Urwin H, Venter C, Walker M, Ward R, Yarham RAR, Young M, O'Brien J. Identifying key priorities for research to protect the consumer with food hypersensitivity: A UK Food Standards Agency Priority Setting Exercise. Clin Exp Allergy 2021; 51:1322-1330. [PMID: 34233055 PMCID: PMC9291826 DOI: 10.1111/cea.13983] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 06/22/2021] [Indexed: 11/28/2022]
Abstract
Introduction Food hypersensitivity (FHS), including food allergy, coeliac disease and food intolerance, is a major public health issue. The Food Standards Agency (FSA), an independent UK Government department working to protect public health and consumers’ wider interests in food, sought to identify research priorities in the area of FHS. Methods A priority setting exercise was undertaken, using a methodology adapted from the James Lind Alliance—the first such exercise with respect to food hypersensitivity. A UK‐wide public consultation was held to identify unanswered research questions. After excluding diagnostics, desensitization treatment and other questions which were out of scope for FSA or where FSA was already commissioning research, 15 indicative questions were identified and prioritized by a range of stakeholders, representing food businesses, patient groups, health care and academia, local authorities and the FSA. Results 295 responses were received during the public consultation, which were categorized into 70 sub‐questions and used to define 15 key evidence uncertainties (‘indicative questions’) for prioritization. Using the JLA prioritization framework, this resulted in 10 priority uncertainties in evidence, from which 16 research questions were developed. These could be summarized under the following 5 themes: communication of allergens both within the food supply chain and then to the end consumer (ensuring trust in allergen communication); the impact of socio‐economic factors on consumers with FHS; drivers of severe reactions; mechanism(s) underlying loss of tolerance in FHS; and the risks posed by novel allergens/processing. Discussion In this first research prioritization exercise for food allergy and FHS, key priorities identified to protect the food‐allergic public were strategies to help allergic consumers to make confident food choices, prevention of FHS and increasing understanding of socio‐economic impacts. Diagnosis and treatment of FHS was not considered in this prioritization.
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Affiliation(s)
- Paul J Turner
- National Heart & Lung Institute, Imperial College London, London, UK
| | | | | | | | | | - Julie Barnett
- Department of Psychology, University of Bath, Bath, UK
| | | | | | - Stella Cochrane
- Unilever Safety and Environmental Assurance Centre (SEAC, Sharnbrook, UK
| | | | - Mary Feeney
- King's College London, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | - Adam T Fox
- King's College London, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | | | | | | | | | | | | | | | | | - Matthew Ridd
- Population Health Sciences, University of Bristol, Bristol, UK
| | - Graham Roberts
- Clinical and Experimental Sciences Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK
| | | | - Guy Scadding
- Royal Brompton & Harefield Hospital NHS Trust, London, UK
| | | | | | | | - Carina Venter
- Section of Allergy/Immunology, Children's Hospital Colorado and University of Colorado, Denver, CO, USA
| | | | | | | | | | - John O'Brien
- Nutrition Innovation Centre for Food & Health, School of Biomedical Sciences, Ulster University, Coleraine, UK
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Wang J, Wood RA. Innovations to Improve Food Allergy Outcomes. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2021; 9:130-131. [PMID: 33429705 DOI: 10.1016/j.jaip.2020.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 06/12/2023]
Affiliation(s)
- Julie Wang
- Division of Allergy & Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY.
| | - Robert A Wood
- Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Md
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