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Jacobs SR, Ramsey N, Bagnato M, Pitt T, Davis CM. Health disparities in allergic diseases. Curr Opin Allergy Clin Immunol 2024; 24:94-101. [PMID: 38295102 PMCID: PMC10923006 DOI: 10.1097/aci.0000000000000972] [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] [Indexed: 02/02/2024]
Abstract
PURPOSE OF REVIEW Healthcare disparities impact prevalence, diagnosis, and management of allergic disease. The purpose of this review is to highlight the most recent evidence of healthcare disparities in allergic conditions to provide healthcare providers with better understanding of the factors contributing to disparities and to provide potential management approaches to address them. This review comes at a time in medicine where it is well documented that disparities exist, but we seek to answer the Why , How and What to do next? RECENT FINDINGS The literature highlights the socioeconomic factors at play including race/ ethnicity, neighborhood, insurance status and income. Management strategies have been implemented with the hopes of mitigating the disparate health outcomes including utilization of school-based health, distribution of educational tools and more inclusive research recruitment. SUMMARY The studies included describe the associations between upstream structural and social factors with downstream outcomes and provide ideas that can be recreated at other institutions of how to address them. Focus on research and strategies to mitigate healthcare disparities and improve diverse research participant pools are necessary to improve patient outcomes in the future.
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Affiliation(s)
- Samantha R. Jacobs
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Division of Pediatric Allergy and Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Division of Clinical Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Nicole Ramsey
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Division of Pediatric Allergy and Immunology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mariangela Bagnato
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - Tracy Pitt
- Department of Pediatrics, Humber Hospital, Toronto, Ontario, Canada
| | - Carla M. Davis
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, United States
- Division of Immunology, Allergy and Retrovirology, Baylor College of Medicine and Texas Children’s Hospital, Houston, TX, United States
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, United States
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2
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Heederik D, van Rooy F. Update on occupational allergy, including asthma, to soluble platinum salts. Curr Opin Allergy Clin Immunol 2024; 24:69-72. [PMID: 38359103 PMCID: PMC10906205 DOI: 10.1097/aci.0000000000000963] [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] [Indexed: 02/17/2024]
Abstract
PURPOSE OF REVIEW This review aims to evaluate recent literature on occupational platinum salt exposure and allergy and asthma in the context of existing evidence. RECENT FINDINGS A major recent development is that large quantitative platinum salt exposure datasets have become available and are finding applications in epidemiological studies. These exposure data are expected to lead to higher quality epidemiological studies focusing on exposure response relations, modifiers of exposure and sensitization risk. The exposure data might also improve medical referral advice as part of medical surveillance studies and contribute to improved evidence on the effectiveness of exposure referral. SUMMARY Hopefully, the availability of exposure databases form a stimulus for more exposure response studies and risk assessments leading to science based primary prevention approaches. The availability of more detailed exposure data can guide job transfer decisions in occupational clinical practice.
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Affiliation(s)
- Dick Heederik
- Institute for Risk Assessment Sciences, Division of Environmental Allergy
| | - Frits van Rooy
- Arbounie, Expert Center for Chemical Risk Management, Utrecht, The Netherlands
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Martini F, Rostaher A, Favrot C, Fischer NM. Open trial of recombinant Der f 2 pullulan-conjugated immunotherapy in cats. Vet Dermatol 2024; 35:175-183. [PMID: 38073305 DOI: 10.1111/vde.13217] [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: 08/25/2022] [Revised: 08/26/2023] [Accepted: 11/20/2023] [Indexed: 03/05/2024]
Abstract
BACKGROUND Allermmune HDM (Zenoaq) is a recombinant Dermatophagoides farinae 2 (Der f 2) pullulan-based immunotherapy vaccine whose efficacy on house dust mite allergic dogs has been demonstrated. There is no published information on its use in cats. OBJECTIVES The objective of the study was to evaluate the safety and short-term effects of Allermmune HDM in Dermatophagoides farinae (Df)-sensitised cats. MATERIALS AND METHODS Eleven cats diagnosed with atopic skin syndrome received Allermmune weekly for six weeks then monthly for three months (total duration 18 weeks). On Weeks 0, 6 and 18 clinical lesions were assessed by the Feline Dermatitis Extent and Severity Index (FEDESI); owners assessed pruritus with a 10-cm Visual Analog Scale (pVAS). Concurrent medication use was recorded. The allergen-specific immunoglobulin (Ig)E were measured before study inclusion with a commercial serological assay. RESULTS There were no evident adverse effects. FEDESI and pVAS improved significantly after six weeks (p = 0.001 and p = 0.01, respectively). The pretreatment Df-specific IgE levels were significantly higher in the cats with improved clinical scores than in the cats with no clinical score change (p = 0.009). CONCLUSIONS AND CLINICAL RELEVANCE Allermmune HDM may be safe in cats and has the potential to alleviate signs of atopic skin syndrome. Allergen-specific IgE levels may represent an efficacy marker. Controlled studies of longer duration and larger sample size are worth pursuing.
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Affiliation(s)
- Franco Martini
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Ana Rostaher
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Claude Favrot
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Nina M Fischer
- Dermatology Unit, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
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Cunha FRM, Fagundes BO, Machado NR, França CN, Victor JR. IgG from non-Atopic Individuals Arising as Mediators of a non-Atopic Profile in Human Peripheral CD4+ T cells. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00167-4. [PMID: 38521342 DOI: 10.1016/j.anai.2024.03.014] [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: 01/22/2024] [Revised: 03/05/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Affiliation(s)
- Fernando Roberto Machado Cunha
- Post Graduation Program in Health Sciences, Santo Amaro University (UNISA). Postal Code: 04829-300; São Paulo, SP, Brazil
| | - Beatriz Oliveira Fagundes
- Laboratory of Medical Investigation LIM-56, Division of Dermatology, University of Sao Paulo, Medical School, 05403-000; São Paulo, SP, Brazil
| | - Nicolle Rakanidis Machado
- Laboratory of Medical Investigation LIM-56, Division of Dermatology, University of Sao Paulo, Medical School, 05403-000; São Paulo, SP, Brazil
| | - Carolina Nunes França
- Post Graduation Program in Health Sciences, Santo Amaro University (UNISA). Postal Code: 04829-300; São Paulo, SP, Brazil
| | - Jefferson Russo Victor
- Post Graduation Program in Health Sciences, Santo Amaro University (UNISA). Postal Code: 04829-300; São Paulo, SP, Brazil; Laboratory of Medical Investigation LIM-56, Division of Dermatology, University of Sao Paulo, Medical School, 05403-000; São Paulo, SP, Brazil.
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Jairoun AA, Al-Hemyari SS, Shahwan M, Jairoun O, Zyoud SH. Quantification of p-Phenylenediamine in Hair Dyes and Health Risk Implications in the UAE: Describing Discordances Between Regulations and Real-Life Practices. Risk Manag Healthc Policy 2024; 17:663-675. [PMID: 38528943 PMCID: PMC10962657 DOI: 10.2147/rmhp.s440482] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/26/2024] [Indexed: 03/27/2024] Open
Abstract
Background p-Phenylenediamine (PPD) has been used over the past five decades as a primary precursor in the production of oxidative hair dyes. Numerous health dangers are associated with the short- and long-term use of PPD, raising concerns about its safety. For instance, mounting data suggests that PPD is linked to dermatitis and allergy cases. Objective To quantify the PPD content in hair dyes by measuring the PPD concentration after mixing the ingredients of commercial hair dyes. Methods A total of 290 permanent hair dyes were tested. RP-HPLC-DAD analysis was performed to determine and quantify the PPD content. Results The estimated mean of the PPD limit was 0.89 (95% CI [0.81-0.96]). Of the 290 tested hair dyes, 7.2% (n = 21) exceeded the recommended PPD concentration after mixing. Significantly more hair dyes manufactured in India and China had a PPD content exceeding 2% after mixing compared to dyes from other regions (P = 0.001). Moreover, hair dyes manufactured in India and the UAE were more likely to have incomplete descriptions of the conditions of use and warnings on the label (P = 0.002). Conclusion The effectiveness of the current regulations relevant to these products should be reevaluated. Moreover, through the use of good manufacturing procedures (GMPs), research, and the reporting of adverse reactions, hair dyes should be subjected to better control and monitoring in terms of their safety and quality.
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Affiliation(s)
- Ammar Abdulrahman Jairoun
- Health and Safety Department, Dubai Municipality, Dubai, United Arab Emirates
- Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia (USM), Pulau Pinang, 11800, Malaysia
| | - Sabaa Saleh Al-Hemyari
- Discipline of Clinical Pharmacy, School of Pharmaceutical Sciences, Universiti Sains Malaysia (USM), Pulau Pinang, 11800, Malaysia
- Pharmacy Department, Emirates Health Services, Dubai, United Arab Emirates
| | - Moyad Shahwan
- Department of Clinical Sciences, College of Pharmacy and Health Sciences, Ajman University, Ajman, 346, United Arab Emirates
- Centre of Medical and Bio-allied Health Sciences Research, Ajman University, Ajman, 346, United Arab Emirates
| | - Obaida Jairoun
- College of Dentistry, Ajman University, Ajman, 44839, United Arab Emirates
| | - Sa’ed H Zyoud
- Department of Clinical and Community Pharmacy, College of Medicine and Health Sciences, An-Najah National University, Nablus, 44839, Palestine
- Clinical Research Centre, An-Najah National University Hospital, Nablus, 44839, Palestine
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Du N, Torres C. Prevalence of eosinophilic gastrointestinal diseases in children with short bowel syndrome: A single center study. J Pediatr Gastroenterol Nutr 2024. [PMID: 38511559 DOI: 10.1002/jpn3.12191] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/22/2024]
Abstract
Patients with short bowel syndrome (SBS) have multiple risk factors for eosinophilic gastrointestinal diseases (EGIDs) including increased risk for intestinal dysbiosis and food allergy compared to their counterparts with normal anatomy. However, there is limited data on the prevalence of EGIDs in children with SBS. We aimed to define the prevalence of EGIDs in an SBS cohort and its association with different risk factors via a retrospective chart review of patients with SBS at Children's National Hospital. The prevalence of eosinophilic esophagitis in our SBS cohort was 10%, eosinophilic gastritis was 4.9%, and eosinophilic enteritis was 4.9%. SBS patients with history of allergy or atopy were more likely to have esophageal and intestinal eosinophilia on biopsy than patients without allergy. The prevalence of EGIDs in our SBS cohort is significantly higher than in the general population and may be associated with allergic polarization.
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Affiliation(s)
- Nicole Du
- Pediatric Residency Program, Children's National Hospital, Washington, District of Columbia, USA
- Division of Pediatric Gastroenterology, Children's National Hospital, Washington, District of Columbbia, USA
| | - Clarivet Torres
- Pediatric Residency Program, Children's National Hospital, Washington, District of Columbia, USA
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Martinez-Gonzalez I, Takei F. New insights into ILC2 memory. Immunol Rev 2024. [PMID: 38506432 DOI: 10.1111/imr.13323] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Group 2 Innate Lymphoid Cells (ILC2s) are innate lymphocytes involved in type 2 immunity. ILC2s are abundant at the barrier tissues and upon allergen exposure, respond to epithelial-derived alarmins by producing type 2 cytokines (e.g., IL-5 and IL-13). Upon activation, some of these activated ILC2s acquire immunological memory and can mount enhanced responses upon further allergen encounters. Here, we review recent findings of the cellular and molecular mechanisms underlying immune memory in ILC2s both in mice and humans and discuss the implications of memory ILC2s in the context of allergic diseases.
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Affiliation(s)
| | - Fumio Takei
- Terry Fox Laboratory, British Columbia Cancer Research Institute, Vancouver, British Columbia, Canada
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Matricardi PM, Potapova E, Panetta V, Lidholm J, Mattsson L, Scala E, Bernardini R, Caffarelli C, Casani A, Cervone R, Chini L, Comberiati P, De Castro G, Miraglia Del Giudice M, Dello Iacono I, Di Rienzo Businco A, Gallucci M, Giannetti A, Moschese V, Varin E, Bianchi A, Calvani M, Frediani T, Macrì F, Maiello N, Paravati F, Pelosi U, Peroni D, Pingitore G, Tosca M, Zicari AM, Ricci G, Asero R, Tripodi S. IgE to cyclophilins in pollen allergic children: epidemiological, clinical and diagnostic relevance of a neglected panallergen. J Allergy Clin Immunol 2024:S0091-6749(24)00235-5. [PMID: 38513837 DOI: 10.1016/j.jaci.2024.01.030] [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: 10/18/2023] [Revised: 12/25/2023] [Accepted: 01/26/2024] [Indexed: 03/23/2024]
Abstract
BACKGROUND - Cyclophilins are ubiquitous panallergens whose epidemiological, diagnostic, and clinical relevance is largely unknown and whose sensitization is rarely examined in routine allergy practice. The aim of this study was to investigate the epidemiological, diagnostic, and clinical relevance of cyclophilin in seasonal allergic rhinitis and its comorbidities. METHODS - We examined a random sample (25%, n 253) of 1263 Italian children affected by seasonal allergic rhinitis from the "Panallergen in Pediatrics" (PAN-PED) cohort. Patients' disease phenotype had been already fully characterized through questionnaires (ARIA), skin prick tests (ALK), IgE tests to extracts, major and cross-reactive allergenic molecules of a comprehensive variety of allergenic pollen (immunoCAP), and carbohydrate cross-reacting determinants (CCD) (NOVEOS). We also performed nested studies of sensitization prevalence, correlation and allergen extract inhibition in patients (A) sensitized to birch pollen extract but lacking IgE to Bet v 1, Bet v 2, and Bet v 4, (74/1263) or with the highest serum level of IgE to Bet v 1 (26 within 1263), and (B) in patients with sensitization to extracts of ragweed (18), mugwort (18), pellitory (20), Plantago (19), and plane tree (20), but not to their respective major allergenic molecule, profilins and polcalcins. IgE to cyclophilin was detected with recombinant Bet v 7 (ImmunoCAP) and extract inhibition tests were performed with the same rBet v 7. RESULTS In the randomized population, IgE to rBet v 7 was detected in 43/253 (17%) patients. It was associated with asthma (p<0.028) and oral allergy syndrome (p<0.017) in univariate, but not in a multivariate analysis adjusted for IgE to profilins (Phl p 12), PR.10s (Bet v 1), and LTPs (Pru p 3). IgE to r Bet v 7 was also highly prevalent (47/74; 63%) among patients with unexplained sensitization to birch pollen extract. In patients with unexplained sensitization to ragweed, mugwort, pellitory, Plantago and plane tree pollen, the levels of IgE to those extracts correlated with the levels of IgE to rBet v 7, and they were also significantly inhibited by rBet v 7 (inhibition range 45%-74%). CONCLUSIONS - IgE sensitization to cyclophilin is very frequent in pollen-allergic patients living in temperate areas and can produce "false" positive outcomes in SPT and IgE tests to many different pollen extracts. The spectrum of pollen species containing allergenic cyclophilins is probably broader than previously known. Our results suggest that guidelines of molecular diagnostics should include this allergen family and that new tests based on plant cyclophilins should be produced and used with sera of pollen-allergic patients for a more precise identification of the culprit pollen extract and a tailored prescription of allergen immunotherapy.
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Affiliation(s)
- Paolo Maria Matricardi
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Augustenburger Platz 1, 13353 Berlin, Germany; Institute of Allergology, Charité-Universitätsmedizin Berlin, Germany;; Allergology and Immunology, Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Berlin, Germany.
| | - Ekaterina Potapova
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Pediatric Respiratory Medicine, Immunology and Critical Care Medicine, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Valentina Panetta
- Consultancy & Training, Biostatistics, L'altrastatistica srl, Rome, Italy
| | | | | | - Enrico Scala
- Clinical and Laboratory Molecular Allergy Unit, IDI-IRCCS, Rome, Italy
| | | | - Carlo Caffarelli
- Clinica Pediatrica, Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Rosa Cervone
- Pediatric Unit, San Giuseppe Hospital, Empoli, Italy
| | - Loredana Chini
- UOSD di Immunopatologia ed Allergologia Pediatrica, Policlinico Tor Vergata, Università di Roma Tor Vergata, Rome, Italy
| | - Pasquale Comberiati
- Department of Clinical and Experimental Medicine, Section of Paediatrics, University of Pisa, Pisa, Italy
| | | | - Michele Miraglia Del Giudice
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università della Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Marcella Gallucci
- Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Arianna Giannetti
- Pediatric Intermediate Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Viviana Moschese
- UOSD di Immunopatologia ed Allergologia Pediatrica, Policlinico Tor Vergata, Università di Roma Tor Vergata, Rome, Italy
| | - Elena Varin
- Allergology Service, San Carlo Clinic, Paderno Dugnano, Milan, Italy
| | | | - Mauro Calvani
- Pediatric Unit, San Camillo Forlanini Hospital, Rome, Italy
| | | | | | - Nunzia Maiello
- Dipartimento della Donna, del Bambino e di Chirurgia Generale e Specialistica, Università della Campania Luigi Vanvitelli, Naples, Italy
| | | | | | - Diego Peroni
- Pediatric Section, Department of Life and Reproduction Sciences, University of Verona, Verona, Italy
| | | | - Mariangela Tosca
- Pulmonary Disease and Allergy Unit, G. Gaslini Hospital, Genoa, Italy
| | | | - Giampaolo Ricci
- Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Riccardo Asero
- Ambulatorio di Allergologia, Clinica San Carlo, Paderno Dugnano (MI), Italy
| | - Salvatore Tripodi
- Pediatric Department and Pediatric Allergology Unit, Sandro Pertini Hospital, Rome, Italy
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Mahjoub B, Marsac C, Ponvert C, Delacourt C, Faour H, Garcelon N, Lezmi G. Are skin tests useful after benign immediate reactions to beta-lactams in children? Clin Exp Allergy 2024. [PMID: 38499330 DOI: 10.1111/cea.14476] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 03/20/2024]
Affiliation(s)
- Bouchra Mahjoub
- Service de Pneumologie et Allergologie Pédiatriques, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Charlotte Marsac
- Service de Pneumologie et Allergologie Pédiatriques, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Claude Ponvert
- Service de Pneumologie et Allergologie Pédiatriques, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Christophe Delacourt
- Service de Pneumologie et Allergologie Pédiatriques, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
- Université ParisCité, Paris, France
| | - Hassan Faour
- Département d'Informatique Médicale, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Nicolas Garcelon
- Département d'Informatique Médicale, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
| | - Guillaume Lezmi
- Service de Pneumologie et Allergologie Pédiatriques, Hôpital Necker-Enfants Malades, Assistance Publique des Hôpitaux de Paris (AP-HP), Paris, France
- Université ParisCité, Paris, France
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Prosty C, Alyasin M, Gabrielli S, Clarke AE, Morris J, Gravel J, Lim R, Chan ES, Goldman RD, O'Keefe A, Gerdts J, Chu DK, Upton J, Hochstadter E, Moisan J, Bretholz A, McCusker C, Zhang X, Protudjer JL, Abrams EM, Simons E, Ben-Shoshan M. Clinical Characteristics and Management of Pediatric Egg-Induced Anaphylaxis: A Cross-Sectional Study. Ann Allergy Asthma Immunol 2024:S1081-1206(24)00151-0. [PMID: 38499059 DOI: 10.1016/j.anai.2024.03.008] [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: 01/26/2024] [Revised: 03/11/2024] [Accepted: 03/12/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND Egg is the third most common food allergy in children; however, data on pediatric egg-induced anaphylaxis are sparse. OBJECTIVE We aimed to describe the clinical characteristics, management, and outcomes of pediatric egg-induced anaphylaxis. METHODS Children presenting with anaphylaxis were recruited from 13 emergency departments as part of the Cross-Canada Anaphylaxis Registry (C-CARE), from which data on anaphylaxis triggered by egg were extracted. Multivariate logistic regression was used to determine factors associated with pre-hospital epinephrine autoinjector (EAI) use and to compare anaphylaxis triggered by egg to other triggers of food-induced anaphylaxis (FIA). RESULTS We recruited 302 children with egg-induced anaphylaxis. The mean age was 2.6 years (Standard deviation=3.6) and 55.3% were male. Only 39.4% had previously been diagnosed with an egg allergy. Pre-hospital EAI use was 32.1%, but this was not significantly lower than in other triggers of FIA (P=0.26). Only 1.4% of patients required hospital admission. Relative to other triggers of FIA, patients with egg-induced anaphylaxis were significantly younger (P<0.001) and exhibited more vomiting (P=0.0053) and less throat tightness (P=0.0015) and angioedema (P<0.001). CONCLUSION To our knowledge, this is the largest published cohort of pediatric egg-induced anaphylaxis. In this cohort, pre-hospital EAI use was very low. Additionally, we identified certain symptoms that distinguish egg-induced from other triggers of FIA. Taken together, high suspicion is crucial in identifying egg-induced anaphylaxis, given the younger patient demographic and frequent lack of prior FIA history.
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Affiliation(s)
- Connor Prosty
- Faculty of Medicine, McGill University, Montreal, QC, Canada.
| | - Moniah Alyasin
- Department of Pediatrics, Montreal Children's Hospital, McGill University, Montreal, QC, Canada
| | - Sofianne Gabrielli
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
| | - Ann E Clarke
- Division of Rheumatology, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Judy Morris
- Department of Emergency Medicine, Sacré-Coeur Hôpital, Montreal, Quebec, Canada
| | - Jocelyn Gravel
- Department of Pediatric Emergency Medicine, Centre Hospitalier Universitaire Sainte-Justine, Université de Montréal, Montreal, QC, Canada
| | - Rodrick Lim
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Children's Hospital at London Health Science Centre, London, ON, Canada
| | - Edmond S Chan
- Division of Allergy and Immunology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Ran D Goldman
- Division of Clinical Pharmacology and Emergency Medicine, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada
| | - Andrew O'Keefe
- Department of Pediatrics, Faculty of Medicine, Memorial University, St. John's, NL, Canada
| | - Jennifer Gerdts
- Executive Director, Food Allergy Canada, Toronto, ON, Canada
| | - Derek K Chu
- Division of Clinical Immunology & Allergy, Department of Medicine, and Department of Health Research Methods, Evidence & Impact, McMaster University, Hamilton, ON, Canada
| | - Julia Upton
- Division of Immunology and Allergy, Department of Pediatrics, The Hospital for Sick Children, Department of Paediatrics, University of Toronto, Toronto, ON, Canada
| | - Elana Hochstadter
- Department of Pediatric Emergency Medicine, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Jocelyn Moisan
- Regional Medical Director of Emergency Medical Services of Outaouais, Outaouais, QC, Canada
| | - Adam Bretholz
- Division of Pediatric Emergency Medicine, Department of Pediatrics, Montreal Children's Hospital, Montreal, QC, Canada
| | - Christine McCusker
- Division of Allergy and Clinical Immunology, Department of Pediatrics, Montreal Children's Hospital, McGill University Health Centre, Montreal, QC, Canada
| | - Xun Zhang
- Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montreal, QC, Canada
| | - Jennifer Lp Protudjer
- Department of Pediatrics and Child Health, Children's Hospital Research Institute of Manitoba, Winnipeg, MN, Canada
| | - Elissa M Abrams
- Department of Pediatrics and Child Health, Section of Allergy and Clinical Immunology, Children's Hospital Research Institute of Manitoba, Winnipeg, MN, Canada
| | - Elinor Simons
- Department of Pediatrics and Child Health, Section of Allergy and Clinical Immunology, Children's Hospital Research Institute of Manitoba, Winnipeg, MN, 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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Lin TY, Makrufardi F, Tung NT, Manullang A, Chang PJ, Lo CY, Chiu TH, Tung PH, Lin CH, Lin HC, Wang CH, Lin SM. Different Impacts of Traffic-Related Air Pollution on Early-Onset and Late-Onset Asthma. J Asthma Allergy 2024; 17:195-208. [PMID: 38505396 PMCID: PMC10949997 DOI: 10.2147/jaa.s451725] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/28/2024] [Indexed: 03/21/2024] Open
Abstract
Background Early-onset asthma (EOA) and late-onset asthma (LOA) are two distinct phenotypes. Air pollution has been associated with an increase in poorer asthma outcomes. The objective of this study was to examine the effects of traffic-related air pollution (TRAP) on asthma outcomes in EOA and LOA patients. Methods A cross-sectional study was conducted on 675 asthma patients (LOA: 415) recruited from a major medical center in Taiwan. The land-use regression (LUR) model was used to estimate the level of exposure to PM10, PM2.5, NO2, and O3 on an individual level. We investigated the association between TRAP and asthma outcomes in EOA and LOA patients, stratified by allergic sensitization status, using a regression approach. Results An increase in PM10 was associated with younger age of onset, increased asthma duration, and decreased lung function in EOA patients (p<0.05). An increase in PM10 was associated with older age of onset, and decreased asthma duration, eosinophil count, and Asthma Control Test (ACT) score in LOA patients. An increase in PM2.5 was associated with younger age of onset, increased asthma duration, decreased eosinophil count, and lung function in EOA patients (p<0.05). An increase in PM2.5 was associated with decreased lung function and ACT score in LOA patients. An increase in NO2 was associated with increased eosinophil count and decreased lung function in EOA patients (p<0.05). An increase in O3 was associated with decreased lung function in LOA patients (p<0.05). In addition, associations of TRAP with age of onset and eosinophil counts were mainly observed in both EOA and LOA patients with allergic sensitization, and an association with ACT was mainly observed in LOA patients without allergic sensitization. Conclusion The impact of TRAP on age of onset, eosinophil count, and lung function in EOA patients, and ACT in LOA patients, was affected by the status of allergic sensitization.
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Affiliation(s)
- Ting-Yu Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Firdian Makrufardi
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Child Health, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada – Dr. Sardjito Hospital, Yogyakarta, Indonesia
| | - Nguyen Thanh Tung
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Otorhinolaryngology Department, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Amja Manullang
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Yu Lo
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tzu-Hsuan Chiu
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Pi-Hung Tung
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Chiung-Hung Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shu-Min Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
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12
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Alzahrani KR, Gomez-Cardona E, Gandhi V, Palikhe NS, Laratta C, Julien O, Vliagoftis H. German cockroach extract prevents IL-13-induced CCL26 expression in airway epithelial cells through IL-13 degradation. FASEB J 2024; 38:e23531. [PMID: 38466220 DOI: 10.1096/fj.202300828rrr] [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: 04/25/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/12/2024]
Abstract
Inhaled aeroallergens can directly activate airway epithelial cells (AECs). Exposure to cockroach allergens is a strong risk factor for asthma. Cockroach allergens mediate some of their effects through their serine protease activity; protease activity is also a major contributor to allergenicity. The Th2 cytokine interleukin-13 (IL-13) induces upregulation of the eosinophil chemotactic factor CCL26. CCL26 induces eosinophil migration in allergic inflammation. In this work, we studied the effect of cockroach proteases on IL-13-induced effects. Immersed cultures of the human bronchial epithelial cell line BEAS-2B and air-liquid interface (ALI) cultures of primary normal human bronchial epithelial (NHBE) cells were stimulated with IL-13, Blattella Germanica cockroach extract (CE), or both. IL-13-induced genes were analyzed with qRT-PCR. IL-13 induced upregulation of CCL26, periostin, and IL-13Rα2 in bronchial epithelial cells which were decreased by CE. CE was heat-inactivated (HICE) or pre-incubated with protease inhibitors. HICE and CE preincubated with serine protease inhibitors did not prevent IL-13-induced CCL26 upregulation. CE-degraded IL-13 and specific cleavage sites were identified. CE also decreased IL-4-induced CCL26 upregulation and degraded IL-4. Other serine proteases such as bovine trypsin and house dust mite (HDM) serine proteases did not have the same effects on IL-13-induced CCL26. We conclude that CE serine proteases antagonize IL-13-induced effects in AECs, and this CE effect is mediated primarily through proteolytic cleavage of IL-13. IL-13 cleavage by cockroach serine proteases may modulate CCL26-mediated effects in allergic airway inflammation by interfering directly with the pro-inflammatory effects of IL-13 in vivo.
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Affiliation(s)
- Khadija Rashed Alzahrani
- Division of Pulmonary Medicine, Department of Medicine, and Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Erik Gomez-Cardona
- Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Vivek Gandhi
- Division of Pulmonary Medicine, Department of Medicine, and Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Nami Shrestha Palikhe
- Division of Pulmonary Medicine, Department of Medicine, and Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Cheryl Laratta
- Division of Pulmonary Medicine, Department of Medicine, and Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
| | - Olivier Julien
- Department of Biochemistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Harissios Vliagoftis
- Division of Pulmonary Medicine, Department of Medicine, and Alberta Respiratory Centre, University of Alberta, Edmonton, Alberta, Canada
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13
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Shusterman D. History of pollutant adjuvants in respiratory allergy. Front Allergy 2024; 5:1374771. [PMID: 38533354 PMCID: PMC10964904 DOI: 10.3389/falgy.2024.1374771] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024] Open
Abstract
Combined exposures to allergens and air pollutants emerged as a topic of concern in scientific circles by the 1980's, when it became clear that parallel increases in respiratory allergies and traffic-related air pollution had been occurring during the 20th century. Although historically there has been a tendency to treat exposure-related symptoms as either allergic or toxicologic in nature, cross-interactions have since been established between the two modalities. For example, exposure to selected air pollutants in concert with a given allergen can increase the likelihood that an individual will become sensitized to that allergen, strongly suggesting that the pollutant acted as an adjuvant. Although not a review of underlying mechanisms, the purpose of this mini-review is to highlight the potential significance of co-exposure to adjuvant chemicals in predicting allergic sensitization in the respiratory tract. The current discussion emphasizes the upper airway as a model for respiratory challenge studies, the results of which may be applicable-not only to allergic rhinitis-but also to conjunctivitis and asthma.
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Affiliation(s)
- Dennis Shusterman
- Upper Airway Biology Laboratory, Division of Occupational, Environmental and Climate Medicine, Department of Medicine, University of California, San Francisco, CA, United States
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14
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Sueur P, Pelletier F, Girardin P, Moumane L, Jeand'Heur A, Aubin F, Castelain F. First case of protein contact dermatitis after botulinum toxin injection, related to a human albumin's allergy. Contact Dermatitis 2024. [PMID: 38469666 DOI: 10.1111/cod.14538] [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: 10/24/2023] [Revised: 01/23/2024] [Accepted: 02/24/2024] [Indexed: 03/13/2024]
Affiliation(s)
- Pauline Sueur
- Department of Dermatology, Jean-Minjoz Hospital, Besançon, France
| | - Fabien Pelletier
- Department of Dermatology, Jean-Minjoz Hospital, Besançon, France
- Inserm Unit 1098, Université de Franche Comté, Besançon, France
| | - Pascal Girardin
- Department of Dermatology, Jean-Minjoz Hospital, Besançon, France
| | | | | | - François Aubin
- Department of Dermatology, Jean-Minjoz Hospital, Besançon, France
- Inserm Unit 1098, Université de Franche Comté, Besançon, France
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15
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Cossette BJ, Shetty S, Issah LA, Collier JH. Self-Assembling Allergen Vaccine Platform Raises Therapeutic Allergen-Specific IgG Responses without Induction of Systemic Allergic Responses. ACS Biomater Sci Eng 2024; 10:1819-1829. [PMID: 38366973 DOI: 10.1021/acsbiomaterials.3c01945] [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] [Indexed: 02/19/2024]
Abstract
Allergen immunotherapies are often successful at desensitizing allergic patients but can require life-long dosing and suffer from frequent adverse events including instances of systemic anaphylaxis, leading to poor patient compliance and high cost. Allergen vaccines, in turn, can generate more durable immunological allergen desensitization with far fewer doses. However, like immunotherapies, allergen vaccines are often highly reactogenic in allergic patients, hampering their use in therapeutic settings. In this work, we utilize a peptide-based self-assembling nanofiber platform to design allergen vaccines against allergen B-cell epitopes that do not elicit systemic anaphylaxis when administered subcutaneously to allergic mice. We show that, in contrast to protein vaccines, nanofiber vaccines prevent leakage of allergen material into the vascular compartment, a feature that likely underpins their reduced systemic reactogenicity. Further, we show that our allergen vaccine platform elicits therapeutic IgG antibody responses capable of desensitizing allergic mice to allergen-induced Type I hypersensitivity reactions. Finally, we have demonstrated a proof-of-concept for the therapeutic potential of nanofiber-based peanut allergen vaccines directed against peanut allergen-derived epitopes.
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Affiliation(s)
- Benjamin J Cossette
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Shamitha Shetty
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Luqman A Issah
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Joel H Collier
- Department of Biomedical Engineering, Duke University, Durham, North Carolina 27708, United States
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16
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Pinyopornpanish K, Chungcharoenpanich A, Teepapan P, Thadanipon K, Ruangwattanachok C, Lamrahong P, Thongdee N, Dechapaphapitak N, Sukasem C, Pongphaew C, Jantararoungtong T, Koomdee N, Laisuan W. Risk factors for sulfamethoxazole/trimethoprim-induced severe cutaneous adverse reactions. Clin Exp Allergy 2024. [PMID: 38462790 DOI: 10.1111/cea.14470] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/07/2024] [Accepted: 02/25/2024] [Indexed: 03/12/2024]
Affiliation(s)
- Kanokkarn Pinyopornpanish
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Division of Allergy Clinical Immunology, Department of Medicine, Chiangmai University Hospital, Chiangmai, Thailand
| | - Apinya Chungcharoenpanich
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Putthapon Teepapan
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Kunlawat Thadanipon
- Department of Clinical Epidemiology and Biostatistics, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Division of Dermatology, Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chulapha Ruangwattanachok
- Clinical Pharmacy Section, Pharmacy Division, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pansa Lamrahong
- Clinical Pharmacy Section, Pharmacy Division, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nattakirana Thongdee
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Nizchapa Dechapaphapitak
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chonlaphat Sukasem
- Division of Pharmacogenomics and Personalized Medicine, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Bangkok, Thailand
- Laboratory for Pharmacogenomics, Clinical Pathology, Somdetch Phra Debharatana Medical Centre, Ramathibodi Hospital, Bangkok, Thailand
- Pharmacogenomics Clinic, Bumrungrad Genomic Medicine Institute, Bumrungrad International Hospital, Bangkok, Thailand
- Research and Development Laboratory, Bumrungrad International Hospital, Bangkok, Thailand
- Faculty of Pharmaceutical Sciences, Burapha University, Chonburi, Thailand
- Department of Pharmacology and Therapeutics, MRC Centre for Drug Safety Science, Institute of Systems, Molecular, and Integrative Biology, University of Liverpool, Liverpool, UK
| | | | - Thawinee Jantararoungtong
- Division of Pharmacogenomics and Personalized Medicine, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Bangkok, Thailand
- Laboratory for Pharmacogenomics, Clinical Pathology, Somdetch Phra Debharatana Medical Centre, Ramathibodi Hospital, Bangkok, Thailand
| | - Napatrupron Koomdee
- Division of Pharmacogenomics and Personalized Medicine, Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Bangkok, Thailand
- Laboratory for Pharmacogenomics, Clinical Pathology, Somdetch Phra Debharatana Medical Centre, Ramathibodi Hospital, Bangkok, Thailand
| | - Wannada Laisuan
- Division of Allergy, Immunology and Rheumatology, Department of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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17
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Akin C, Siebenhaar F, Wechsler JB, Youngblood BA, Maurer M. Detecting Changes in Mast Cell Numbers vs. Activation in Human Disease: A Roadblock for Current Biomarkers? J Allergy Clin Immunol Pract 2024:S2213-2198(24)00271-X. [PMID: 38467332 DOI: 10.1016/j.jaip.2024.03.010] [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] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/09/2024] [Accepted: 03/01/2024] [Indexed: 03/13/2024]
Abstract
The pathophysiology of mast cell (MC)-driven disorders is diverse, ranging from localized reactions to systemic disorders caused by abnormal accumulation and activation in multi-organ systems. Prompt and accurate diagnosis is critically important, both for informing treatment and objective assessment of treatment outcomes. As new therapeutics are being developed to deplete MCs or silence them (e.g., by engaging inhibitory receptors that block activation), new biomarkers are needed that can distinguish between MC activation vs. burden. Serum tryptase is the gold standard for assessing both mast cell burden and activation; however, commercial tryptase assays have limitations related to timing of release, lack of discernment between inactive (α) and active (β) forms of tryptase, and interpatient variability of baseline levels. Alternative approaches to measuring MC activation include urinary mast cell mediators, flow cytometry-based assays or gene expression profiling. Additional markers of MC activation are needed for use in clinical diagnostics, to help selection of treatment of MC diseases, and for assessing outcomes of therapy. We review the spectrum of disorders with known or suspected MC contribution, describe the utility and limitations of current MC markers and assays, and discuss the need for new markers that can differentiate between MC activation and burden.
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Affiliation(s)
- Cem Akin
- Division of Allergy and Clinical Immunology, University of Michigan, Ann Arbor, MI
| | - Frank Siebenhaar
- Institute of Allergology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany;; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology, Berlin, Germany
| | | | | | - Marcus Maurer
- Institute of Allergology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany;; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology, Berlin, Germany;.
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18
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Benedict K, Chew GL, Hsu J, Toda M, Gold JAW. Healthcare use and health disparities associated with mold exposure diagnosis codes. J Allergy Clin Immunol Pract 2024:S2213-2198(24)00268-X. [PMID: 38462071 DOI: 10.1016/j.jaip.2024.03.007] [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] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 02/29/2024] [Accepted: 03/01/2024] [Indexed: 03/12/2024]
Abstract
Medicaid and commercial health insurance claims databases revealed disparities in patients assigned the ICD-10 code "Contact with and (suspected) exposure to mold (toxic)" by insurance type, age, and sex. Allergic rhinitis was the most common concomitant diagnosis.
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Affiliation(s)
- Kaitlin Benedict
- Mycotic Diseases Branch; Division of Foodborne, Waterborne, and Environmental Diseases; National Center for Emerging and Zoonotic Infectious Diseases; Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
| | - Ginger L Chew
- Division of Environmental Health Science and Practice, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Joy Hsu
- Asthma and Air Quality Branch; Division of Environmental Health Science and Practice, National Center for Environmental Health; Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Mitsuru Toda
- Mycotic Diseases Branch; Division of Foodborne, Waterborne, and Environmental Diseases; National Center for Emerging and Zoonotic Infectious Diseases; Centers for Disease Control and Prevention, Atlanta, Georgia, USA
| | - Jeremy A W Gold
- Mycotic Diseases Branch; Division of Foodborne, Waterborne, and Environmental Diseases; National Center for Emerging and Zoonotic Infectious Diseases; Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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19
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Chacón P, Vega-Rioja A, Doukkali B, Del Valle Rodriguez A, Fernández-Delgado L, Domínguez-Cereijo L, Segura C, Pérez-Machuca BM, Perkins JR, El Bekay R, Cornejo-García JA, Hajji N, Monteseirín J, Rivas-Pérez D. Human Neutrophils Couple Nitric Oxide Production and Extracellular Traps Formation in Allergic Asthma. Am J Respir Crit Care Med 2024. [PMID: 38445953 DOI: 10.1164/rccm.202305-0889oc] [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: 05/28/2023] [Accepted: 03/05/2024] [Indexed: 03/07/2024] Open
Abstract
RATIONALE Nitric oxide (NO) is elevated in the airways and serum of allergic asthmatic patients, suggesting an important role in asthma. NO production has been widely attributed to the canonical inducible nitric oxide synthase (iNOS). Much effort has been made to inhibit this enzyme with two outcomes: no asthma improvement; and partial NO reduction, suggesting the involvement of an iNOS-independent source. OBJECTIVES Neutrophils produce NO under inflammatory conditions and their role in asthma has been overlooked. The present study analyzes their possible role as source of NO. METHODS Our hypothesis was tested in 99 allergic patients with intermittent bronchial asthma and 26 healthy donors. NO production by blood and sputum neutrophils in response to allergens, anti-IgE, and anti-IgE receptors Abs was assessed by Griess, flow cytometry and confocal microscopy. Extracellular traps (ETs) formation, as a possible consequence of NO production, was quantified by western blot and confocal microscopy, and reactive oxygen species by luminol-enhanced chemiluminescence. RESULTS Among blood and sputum granulocytes from allergic asthmatic patients, only neutrophils, produce NO by an IgE-dependent mechanism. This production is independent of NOS, but dependent on a reaction between L-arginine and reactive oxygen species from NOX2. NO and ETosis are induced in parallel, and NO amplifies ETs formation, which is a key mediator in asthma. CONCLUSIONS Our findings reveal a novel role of neutrophils as the unique allergen/IgE-dependent NO source in allergic asthma enhancing ETs formation. These results suggest that NO produced by neutrophils needs further consideration in the treatment of allergic asthma.
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Affiliation(s)
- Pedro Chacón
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | - Antonio Vega-Rioja
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain;
| | - Bouchra Doukkali
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | | | | | | | - Carmen Segura
- Hospital Universitario Virgen Macarena, 16582, UGC de Alergologia, Sevilla, Spain
| | | | - James R Perkins
- 3Department of Molecular Biology and Biochemistry, University of Málaga, Malaga, Spain
| | - Rajaa El Bekay
- Instituto de Investigación Biomédica de Málaga, 582139, Unidad de Gestión Clínica de Endocrinología y Nutrición, Malaga, Andalucía, Spain
| | | | - Nabil Hajji
- Imperial College London Faculty of Medicine, 4957, London, United Kingdom of Great Britain and Northern Ireland
| | - Javier Monteseirín
- 7Hospital Quirón Sagrado Corazón and Hospital Quirón Infanta-Luisa, Seville, Spain
| | - David Rivas-Pérez
- Universidad de Sevilla Facultad de Odontología, 321179, Sevilla, Andalucía, Spain
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20
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Gharailoo Z, Plattner K, Augusto G, Engeroff P, Vogel M, Bachmann MF. Generation of a virus-like particles based vaccine against IgE. Allergy 2024. [PMID: 38445568 DOI: 10.1111/all.16090] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/14/2024] [Accepted: 02/20/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Anti-IgE immunotherapy with monoclonal antibodies represents a breakthrough in treatment of severe allergic diseases. However, drawbacks such as short half-life and high price are not negligible. Our objective is to develop an anti-IgE vaccine based on virus-like particles (VLPs) which can induce long-lasting neutralizing IgG anti-IgE antibodies reducing allergic responses without causing intrinsic mast cell activation due to IgE cross-linking. METHODS The vaccines were made by chemically coupling three synthetic mouse IgE-Fc fragments to plant-derived immunologically optimized CuMVTT VLPs. The immunogenicity of the vaccines was tested by immunizing naive or allergic mice either with the coupled vaccines or the VLP control followed by systemic or local allergen challenge. RESULTS Mice immunized with the vaccines exhibited high titers of anti-IgE antibodies in the sera and high levels of anti-IgE secreting plasma cells in lymphoid organs. Moreover, free IgE in serum were reduced by the induced anti-IgE antibodies; therefore, less IgE was bound to FcεRI on the surface of basophils. In line with these reduced IgE levels on effector cells after vaccination, immunized mice were protected from challenge with allergens. Importantly, despite presence of anti-IgE antibodies, no signs of acute or chronic allergic response were seen in immunized allergic mice. CONCLUSION The generated vaccines can effectively induce anti-IgE antibodies that did not cause allergic responses in sensitized mice but were able to decrease the level of free and cell bound IgE and protected sensitized animals from allergic responses upon allergen challenge.
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Affiliation(s)
- Zahra Gharailoo
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), Bern, Switzerland
| | - Kevin Plattner
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
- Graduate School for Cellular and Biomedical Sciences (GCB), Bern, Switzerland
| | - Gilles Augusto
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
- Nuffield Department of Medicine, The Jenner Institute, University of Oxford, Oxford, UK
| | - Paul Engeroff
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
| | - Monique Vogel
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
| | - Martin F Bachmann
- Department of Immunology, University Clinic for Rheumatology and Immunology, University of Bern, Bern, Switzerland
- Department of Biomedical Research Bern (DBMR), University of Bern, Bern, Switzerland
- Nuffield Department of Medicine, The Jenner Institute, University of Oxford, Oxford, UK
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21
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Sun Y, Zhang J. Case Report: A case of Kounis syndrome induced by iodine contrast agent during coronary angiography. Front Cardiovasc Med 2024; 11:1355692. [PMID: 38504715 PMCID: PMC10948477 DOI: 10.3389/fcvm.2024.1355692] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/19/2024] [Indexed: 03/21/2024] Open
Abstract
Kounis Syndrome (KS), a seldom-seen adverse reaction to iodine contrast agents, has an incidence that remains unclear. At present, there are no unified guidelines for managing KS either nationally or internationally. Ioversol, a new triiodinated hypotonic nonionic contrast agent, is commonly used in cardiovascular Computed Tomography (CT) and vascular imaging for diagnostic purposes. Its principal adverse reactions encompass fever, dermatological responses, convulsions, respiratory distress, hypersensitivity reactions including KS, and acute renal injury. This paper documents a case of KS induced by an iodine contrast agent during coronary angiography and, at the same time, searches for related literature and carries out a summary analysis in an attempt to provide a dependable reference for clinicians to make accurate diagnoses and treatments.
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Affiliation(s)
| | - Jian Zhang
- Department of Cardiovascular Medicine, The First Hospital of Jilin University, Changchun, China
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Lau L, Low T, Ong YK, Xinni X. Endoscopic and Radiologic Central Compartment Disease as Predictors of Perennial Inhalant Allergen Sensitization in Chronic Rhinosinusitis. Am J Rhinol Allergy 2024:19458924241237915. [PMID: 38444214 DOI: 10.1177/19458924241237915] [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: 03/07/2024]
Abstract
BACKGROUND Central compartment atopic disease (CCAD) is a recently described variant of chronic rhinosinusitis (CRS) strongly associated with atopy. The association between central compartment disease (CCD) and inhalant allergy is not well established in South-East Asia, where perennial allergic rhinitis is common. OBJECTIVES The primary objective was to evaluate endoscopic and radiologic CCD as predictors of perennial allergen sensitization in primary CRS. The secondary objective was to compare clinical characteristics of CCAD with other CRS subtypes (CRSwNP and CRSsNP). METHODS A retrospective study of consecutive patients with primary CRS who underwent endoscopic sinus surgery at our institution was performed. Allergen sensitization was confirmed by skin or serum testing. Endoscopy records and computed tomography scans of paranasal sinuses were reviewed for CCD. The diagnostic accuracy of endoscopic and radiologic CCD in predicting atopy was calculated. RESULTS There were 104 patients (43 CCAD, 30 CRSwNP and 31 CRSsNP). Endoscopic CCD was significantly associated with aeroallergen sensitization (odds ratio (OR) 3.99, 95% confidence interval (CI) 1.65-9.67, P = 0.002). Endoscopic CCD predicted atopy with 57% sensitivity, 72% specificity, 69% positive predictive value and positive likelihood ratio of 2.05. Radiologic CCD was not associated with aeroallergen sensitization (OR 0.728, 95%CI 0.292-1.82, P = 0.496). There were more CCAD patients who reported hyposmia (86% vs 42%, P < 0.001) and had anosmia on olfactory testing than CRSsNP (65% vs 14%, P = 0.015). The prevalence of atopy was significantly higher in CCAD than CRSwNP and CRSsNP (70% vs 37% and 42%, P = 0.015 and P = 0.05, respectively). Median serum total immunoglobulin E was higher in CCAD (283 IU/ml) and CRSwNP (127 IU/ml) than CRSsNP (27 IU/ml, P = 0.006 and P = 0.042, respectively). CONCLUSIONS Endoscopic CCD was a better predictor of inhalant allergy than radiologic CCD in primary CRS, in a locale of perennial allergic rhinitis.
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Affiliation(s)
- Linus Lau
- Department of Otolaryngology-Head and Neck Surgery, National University Hospital, Singapore, Singapore
| | - Terese Low
- Department of Otolaryngology-Head and Neck Surgery, Ng Teng Fong General Hospital, Singapore, Singapore
| | - Yew Kwang Ong
- Department of Otolaryngology-Head and Neck Surgery, National University Hospital, Singapore, Singapore
| | - Xu Xinni
- Department of Otolaryngology-Head and Neck Surgery, National University Hospital, Singapore, Singapore
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23
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Afsar B, Afsar RE. Hypersensitive Reactions During Hemodialysis Treatment: What Do We Need to Know? Semin Dial 2024. [PMID: 38433728 DOI: 10.1111/sdi.13197] [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: 11/22/2023] [Accepted: 01/30/2024] [Indexed: 03/05/2024]
Abstract
Kidney replacement therapies (KRTs) including hemodialysis (HD) are one of the treatment options for most of the patients with end-stage kidney disease. Although HD is vital for these patients, it is not hundred percent physiological, and various adverse events including hypersensitivity reactions may occur. Fortunately, these reactions are rare in total and less when compared to previous decades, but it is still very important for at least two reasons: First, the number of patients receiving kidney replacement treatment is increasing globally; and the cumulative number of these reactions may be substantial. Second, although most of these reactions are mild, some of them may be very severe and even lead to mortality. Thus, it is very important to have basic knowledge and skills to diagnose and treat these reactions. Hypersensitivity reactions can occur at any component of dialysis machinery (access, extracorporeal circuit, medications, etc.). The most important preventive measure is to avoid the allergen. However, even with very specific test, sometimes the allergen cannot be found. In mild conditions, HD can be contained with non-specific treatment (topical creams, antihistaminics, corticosteroids). In more severe conditions, treatment must be stopped immediately, blood should not be returned to patient, drugs must be stopped, and rules of general emergency treatment must be followed.
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Affiliation(s)
- Baris Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
| | - Rengin Elsurer Afsar
- Department of Nephrology, School of Medicine, Suleyman Demirel University, Isparta, Turkey
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24
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Lehtola T, Nummenmaa E, Nieminen R, Hämäläinen M, Vuolteenaho K, Moilanen E. The glucocorticoid dexamethasone alleviates allergic inflammation through a mitogen-activated protein kinase phosphatase-1-dependent mechanism in mice. Basic Clin Pharmacol Toxicol 2024. [PMID: 38439200 DOI: 10.1111/bcpt.13995] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 02/07/2024] [Accepted: 02/11/2024] [Indexed: 03/06/2024]
Abstract
Glucocorticoids are widely used in the treatment of allergic and inflammatory diseases. Glucocorticoids have a widespread action on gene expression resulting in their pharmacological actions and also an array of adverse effects which limit their clinical use. It remains, however, to be studied which target gene effects are essential for the anti-allergic activity of glucocorticoids. Mitogen-activated protein kinase phosphatase-1 (MKP-1) inhibits proinflammatory signalling by suppressing the activity of mitogen activated protein kinase (MAP kinase) pathways. MKP-1 is one of the anti-inflammatory genes whose expression is enhanced by glucocorticoids. In the present study, we aimed to investigate the role of MKP-1 in the therapeutic effects of the glucocorticoid dexamethasone in acute allergic reaction. The effects of dexamethasone were studied in wild-type and MKP-1 deficient mice. The mice were first sensitized to ovalbumin, and the allergic reaction was then induced by a subcutaneous ovalbumin injection in the hind paw. Inflammatory edema was quantified with plethysmometer and expression of inflammatory factors was measured by quantitative reverse transcription polymerase chain reaction (RT-PCR). Dexamethasone reduced the ovalbumin-induced paw edema at 1.5, 3 and 6 h time points in wild-type mice by 70%, 95% and 89%, respectively. The effect was largely abolished in MKP-1 deficient mice. Furthermore, dexamethasone significantly attenuated the expression of ovalbumin-induced inflammatory factors cyclooxygenase-2 (COX-2); inducible nitric oxide synthase (iNOS); interleukins (IL) 1β, 6 and 13; C-C motif chemokine 11 (CCL-11); tumour necrosis factor (TNF) and thymic stromal lymphopoietin (TSLP) in wild-type mice by more than 40%. In contrast, in MKP-1 deficient mice dexamethasone had no effect or even enhanced the expression of these inflammatory factors. The results suggest that dexamethasone alleviates allergic inflammation through an MKP-1-dependent mechanism. The results also demonstrate MKP-1 as an important conveyor of the favourable glucocorticoid effects in ovalbumin-induced type I allergic reaction. Together with previous findings, the present study supports the concept of MKP-1 enhancing compounds as potential novel anti-inflammatory and anti-allergic drugs.
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Affiliation(s)
- Tiina Lehtola
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Elina Nummenmaa
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Riina Nieminen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Mari Hämäläinen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Katriina Vuolteenaho
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
| | - Eeva Moilanen
- The Immunopharmacology Research Group, Faculty of Medicine and Health Technology, Tampere University and Tampere University Hospital, Tampere, Finland
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25
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Aydemir S, Gemici Karaaslan HB, Mustu U, Tin O, Hakalmaz AE, Ozcan R, Emre S, Kendigelen P, Tutuncu AC, Kiykim A, Cokugras H. Perioperative hypersensitivity in children: A prospective multidisciplinary study. Acta Anaesthesiol Scand 2024; 68:321-327. [PMID: 37963631 DOI: 10.1111/aas.14354] [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: 07/27/2023] [Revised: 10/10/2023] [Accepted: 10/23/2023] [Indexed: 11/16/2023]
Abstract
BACKGROUND There are few studies of perioperative hypersensitivity reactions in children. The diagnosis of perioperative hypersensitivity reactions may be under estimated because it is difficult to recognize the reactions. Anaphylaxis may go unnoticed because of patient unconsciousness. Urticaria may be missed due to sterile drapes. The aim of this study was to prospectively evaluate perioperative hypersensitivity reactions. METHODS In this prospective study, patients with suspected perioperative hypersensitivity reactions aged 0-18 years who underwent surgery at the Department of Pediatric Surgery, Cerrahpasa Faculty of Medicine, between 2019 and 2021 were investigated. Suspected reactions in the perioperative period were graded according to the Ring and Messmer scale. Patients with suspected reactions were examined 4-6 weeks after the reaction. If necessary, specific IgE and basophil activation tests were performed. Reactions of grades III-IV were considered anaphylaxis. If one test modality was strongly positive and there was a relevant time point or repeated allergic reactions, or at least two test modalities were positive, hypersensitivity was confirmed. In all patients, serum tryptase levels were analyzed at the time of the reaction, 2 h after the reaction, and 4-6 weeks after the reaction as part of the allergic evaluation. RESULTS A total of 29 patients (8 female, 21 male) suspected of having an intraoperative reaction during the study were included in the analysis. Perioperative hypersensitivity reactions were noted in 1 patient. The incidence of perioperative hypersensitivity reactions was reported to be 0.03% (n = 1/2861). While anaphylaxis was confirmed in 1 patient, 5 patients were considered possible anaphylaxis cases. CONCLUSION Perioperative hypersensitivity reactions can be life-threatening and may recur with further administration. Collaboration between pediatric surgeons, anesthesiologists, and allergists can prevent further reactions. All suspected cases should be evaluated by an experienced allergist soon after the initial reaction.
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Affiliation(s)
- Sezin Aydemir
- Department of Pediatric Allergy and Immunology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Hatice Betul Gemici Karaaslan
- Department of Pediatric Allergy and Immunology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ulviye Mustu
- Department of Pediatric Allergy and Immunology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Oguzhan Tin
- Department of Pediatrics, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ali Ekber Hakalmaz
- Department of Pediatric Surgery, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Rahsan Ozcan
- Department of Pediatric Surgery, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Senol Emre
- Department of Pediatric Surgery, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Pinar Kendigelen
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ayse Cigdem Tutuncu
- Department of Anesthesiology and Intensive Care, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Ayca Kiykim
- Department of Pediatric Allergy and Immunology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Haluk Cokugras
- Department of Pediatric Allergy and Immunology, Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
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26
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Peila C, Spada E, Deantoni S, Borsani M, Asteggiano M, Chiale F, Moro GE, Giribaldi M, Cavallarin L, Cortinovis I, Coscia A. The Use of a Novel Donkey Milk-Derived Human Milk Fortified in the Neonatal Period Had No Effect on the Frequency of Allergic Manifestations During the First Years of Life: The "Fortilat Trial" Follow-Up. Breastfeed Med 2024; 19:223-227. [PMID: 38489532 DOI: 10.1089/bfm.2023.0320] [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] [Indexed: 03/17/2024]
Abstract
Background: Since human milk contents does not meet the high need of very low birth weight infants, fortification of breast milk is a standard practice for this population. As donkey milk has been long considered for children allergic to cow's milk proteins due to its low allergic properties, a new donkey milk-derived fortifier (DF) has been recently evaluated as a valid alternative to bovine milk-derived fortifier (BF). It seems to improve feeding tolerance when compared with standard BF, with similar neurodevelopmental and auxological outcome at 18 months of age. The aim of this study is to evaluate the development of allergic manifestations occurring in the population of the "Fortilat Trial" at 6-8 years of age. Methods: Allergic manifestations were assessed by an ad hoc questionnaire administered to families. The occurrence of asthma, allergic rhinitis and oculorhinitis, rashes and atopic dermatitis, food allergies, accesses to an emergency department for allergic reactions, and the need of antihistamine have been investigated. Results: In total, 113 infants were enrolled in the study (BF arm: n = 60, DF arm: n = 53). No difference in risk was observed between the two groups for all the considered outcomes. In conclusion, our data suggest that DF does not impact the development of allergic manifestations in the first years of life. Clinical Trial Registration number: ISRCT N70022881.
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Affiliation(s)
- Chiara Peila
- Neonatal Unit, Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Elena Spada
- Neonatal Unit, Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Sonia Deantoni
- Neonatal Unit, Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Matteo Borsani
- Neonatal Unit, Department of Public Health and Pediatrics, University of Turin, Turin, Italy
| | | | - Federica Chiale
- Neonatal Intensive Care Unit, Maria Vittoria Hospital, Turin, Italy
| | - Guido E Moro
- Italian Association of Human Milk Banks, Milan, Italy
| | - Marzia Giribaldi
- Institute of Sciences of Food Production, National Research Council, Grugliasco, Italy
| | - Laura Cavallarin
- Institute of Sciences of Food Production, National Research Council, Grugliasco, Italy
| | - Ivan Cortinovis
- Laboratorio GA Maccacaro, Dipartimento di Scienze Cliniche e di Comunità, Università degli Studi di Milano, Milan, Italy
| | - Alessandra Coscia
- Neonatal Unit, Department of Public Health and Pediatrics, University of Turin, Turin, Italy
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27
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Tangye SG, Mackie J, Pathmanandavel K, Ma CS. The trajectory of human B-cell function, immune deficiency, and allergy revealed by inborn errors of immunity. Immunol Rev 2024; 322:212-232. [PMID: 37983844 DOI: 10.1111/imr.13288] [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] [Indexed: 11/22/2023]
Abstract
The essential role of B cells is to produce protective immunoglobulins (Ig) that recognize, neutralize, and clear invading pathogens. This results from the integration of signals provided by pathogens or vaccines and the stimulatory microenvironment within sites of immune activation, such as secondary lymphoid tissues, that drive mature B cells to differentiate into memory B cells and antibody (Ab)-secreting plasma cells. In this context, B cells undergo several molecular events including Ig class switching and somatic hypermutation that results in the production of high-affinity Ag-specific Abs of different classes, enabling effective pathogen neutralization and long-lived humoral immunity. However, perturbations to these key signaling pathways underpin immune dyscrasias including immune deficiency and autoimmunity or allergy. Inborn errors of immunity that disrupt critical immune pathways have identified non-redundant requirements for eliciting and maintaining humoral immune memory but concomitantly prevent immune dysregulation. Here, we will discuss our studies on human B cells, and how our investigation of cytokine signaling in B cells have identified fundamental requirements for memory B-cell formation, Ab production as well as regulating Ig class switching in the context of protective versus allergic immune responses.
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Affiliation(s)
- Stuart G Tangye
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Joseph Mackie
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Karrnan Pathmanandavel
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
| | - Cindy S Ma
- Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
- School of Clinical Medicine, Faculty of Medicine and Health, UNSW Sydney, Sydney, New South Wales, Australia
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28
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Chua CYX, Viswanath DI, Huston DP, Grattoni A. Engineering platforms for localized long-acting immune modulation. J Allergy Clin Immunol 2024; 153:572-575. [PMID: 38253261 PMCID: PMC10939746 DOI: 10.1016/j.jaci.2024.01.004] [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: 11/08/2023] [Revised: 12/18/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
Systemic immunotherapeutics have been a clinical staple in the treatment of cancer, infectious diseases, organ and cell transplantation, autoimmunity, and allergies. Although their utility remains unquestioned, systemic administration of these drugs is associated with limited efficacy, significant adverse off-target effects, transient activity, and the requirement for frequent repeated dosing. To this end, recent technological advancements have provided novel means for sustained drug delivery to specific tissues and targeted localized approaches for immunotherapeutics. In this article, we present various cutting-edge platform technologies, including implants, multireservoir systems, and scaffolds encapsulating immunomodulatory agents for local administration. Examples of their application in cancer, cell transplantation, allergy, and infectious diseases are discussed, highlighting the potential of such systems for innovative immunomodulatory intervention.
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Affiliation(s)
| | - Dixita Ishani Viswanath
- New York Presbyterian Morgan Stanley Children's Hospital, Columbia University Irving Medical Center, New York, NY
| | - David P Huston
- Texas A&M University School of Medicine, Bryan and Houston, Tex; Immunology Center, Houston Methodist Hospital, Houston, Tex
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Tex; Department of Surgery, Houston Methodist Hospital, Houston, Tex; Department of Radiation Oncology, Houston Methodist Hospital, Houston, Tex.
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29
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Walelign S, Tesfaye M, Tasew G, Desta K, Tsegaye A, Taye B. Association between helminth infection and allergic disorders among children in Batu, Ethiopia. Immun Inflamm Dis 2024; 12:e1222. [PMID: 38517214 PMCID: PMC10959016 DOI: 10.1002/iid3.1222] [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: 03/14/2023] [Revised: 03/04/2024] [Accepted: 03/11/2024] [Indexed: 03/23/2024] Open
Abstract
BACKGROUND Helminths are potent immunomodulators and in their chronic infection state they may protect against allergy-related disease and atopy. However, they are also known for inducing allergic conditions. This study aimed to assess the association between helminths, atopy and allergic conditions. METHODS A total of 461 school children participated in this cross-sectional study. Data on allergic symptoms and a range of confounding variables was gathered from parents via an interviewer-led questionnaire. Skin sensitization to house dust mite and cockroaches was analyzed, and a stool sample was collected for helminth analysis. Serum total Immunoglobulin E using enzyme-linked immunosorbent assay and eosinophil count were also measured. RESULTS Overall sensitivity to both allergens was 2.4%. Self-reported allergic outcomes in the last 12 months for the 461 participants had been : wheezing 3.7%, asthma 2.2%, eczema 13.2% and hay fever 6.9%. Overall, the prevalence of helminth infection was 11.9% (53/444). A borderline significant association was found between atopy and any allergy symptoms (odds ratio [OR]: 3.32, 95% confidence interval [95% CI: 0.99, 11.1], p = .052). There was no significant association between helminths and atopy (OR: 0.64 [95% CI: 0.29, 1.41], p = .268) and also between helminths and allergic symptoms (OR: 0.64 [95% CI: 0.29, 1.41], p = .268). Bivariate analysis showed keeping an animal in the house increases the risk of atopy while maternal and paternal history of allergy increases the risk of developing allergic symptoms in the children. CONCLUSION AND CLINICAL RELEVANCE This study found a non-significant inverse association between helminths infection and atopy and allergic disorders, likely due to reduced statistical power, resulting in a lower prevalence of atopy and allergic conditions. A high powered longtitudinal study is necessary to explore the casuality and potential therapeutic benefits of helminths for allergic disorders.
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Affiliation(s)
- Sosina Walelign
- Department of Medical Laboratory SciencesAddis Ababa UniversityAddis AbabaEthiopia
| | - Mheret Tesfaye
- Bacteriology and Mycology National Reference LaboratoryEthiopian Public Health InstituteAddis AbabaEthiopia
| | - Geremew Tasew
- Bacterial, Parasitic, and Zoonotic Diseases Research DirectorateEthiopian Public Health InstituteAddis AbabaEthiopia
| | - Kassu Desta
- Department of Medical Laboratory SciencesAddis Ababa UniversityAddis AbabaEthiopia
| | - Aster Tsegaye
- Department of Medical Laboratory SciencesAddis Ababa UniversityAddis AbabaEthiopia
| | - Bineyam Taye
- Department of BiologyColgate UniversityHamiltonNew YorkUSA
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30
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Alkhatib HH, Maroun CA, Guller M, Cooper DJ, Wu ES, Eisele DW, Fakhry C, Pardoll D, Seiwert TY, Zhu G, Mandal R. Allergy History and Immunotherapy Response in Patients With Recurrent/Metastatic Head and Neck Squamous Cell Carcinoma. Otolaryngol Head Neck Surg 2024; 170:828-836. [PMID: 38123496 DOI: 10.1002/ohn.582] [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: 06/09/2023] [Revised: 10/03/2023] [Accepted: 10/14/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVE This study examines the association between patient-reported allergy history and immune checkpoint inhibition (ICI) response in patients with recurrent or metastatic head and neck squamous cell carcinoma (RMHNSCC). STUDY DESIGN Retrospective cohort study. SETTING Academic tertiary care hospital. METHODS Data were collected from the electronic medical records on baseline age, sex, allergy history, human papillomavirus status, T-stage, N-stage, smoking status, and survival for patients with and without an allergy history. The primary outcome was ICI response defined as complete or partial response by the RECIST criteria. Chi-square and logistic regression analyses were conducted to compare rates and odds of ICI response. Kaplan-Meier analyses were used to compare survival between groups. RESULTS Our study included 52 patients with an allergy history and 36 patients without an allergy history. The groups were similar in age, sex, HPV status, smoking status, and T- and N-stage. Patients with an allergy history (17/52, 32.1%) had a greater ICI response rate than patients without allergy history (4/36, 11.1%) (P = .02). After adjusting for HPV, patients with allergies had 3.93 (1.19-13.00) times increased odds of ICI response compared to patients without allergies. The median progression-free survival was 6.0 and 4.2 months for patients with and without an allergy history respectively (log-rank, P = .04). The median overall survival was 25.0 and 11.1 months for patients with and without an allergy history respectively (log-rank, P = .002). CONCLUSION Patient-reported allergy history was associated with ICI response in patients with RMHNSCC, underscoring the potential clinical utility of allergy history in estimating ICI response.
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Affiliation(s)
- Hosam H Alkhatib
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Otolaryngology-Head and Neck Surgery, University of Washington School of Medicine, Seattle, Washington, USA
| | - Christopher A Maroun
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Meytal Guller
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, USA
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| | - Dylan J Cooper
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, USA
- Department of Otolaryngology-Head and Neck Surgery, Northwell Health Cancer Institute, Hempstead, USA
| | - Evan S Wu
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David W Eisele
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Carole Fakhry
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Drew Pardoll
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Tanguy Y Seiwert
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Gangcai Zhu
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Otolaryngology Head and Neck Surgery, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Rajarsi Mandal
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, Hempstead, USA
- Bloomberg-Kimmel Institute for Cancer Immunotherapy, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Otolaryngology-Head and Neck Surgery, Northwell Health Cancer Institute, Hempstead, USA
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31
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Bavbek S, Kepil Özdemir S, Bonadonna P, Atanaskovic-Markovic M, Barbaud A, Brockow K, Laguna Martinez J, Nakonechna A, Pagani M, Arcolacı A, Lombardo C, Torres MJ. Hypersensitivity reactions to proton pump inhibitors. An EAACI position paper. Allergy 2024; 79:552-564. [PMID: 38013608 DOI: 10.1111/all.15961] [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: 10/24/2023] [Accepted: 11/08/2023] [Indexed: 11/29/2023]
Abstract
Proton pump inhibitors (PPIs) are invaluable therapeutic options in a variety of dyspeptic diseases. In addition to their well-known risk profile, PPI consumption is related to food and environmental allergies, dysbiosis, osteoporosis, as well as immediate and delayed hypersensitivity reactions (HSRs). The latter, although a rare event, around 1%-3%, due to the extraordinarily high rate of prescription and consumption of PPIs are related to a substantial risk. In this Position Paper, we provide clinicians with practical evidence-based recommendations for the diagnosis and management of HSRs to PPIs. Furthermore, the unmet needs proposed in the document aim to stimulate more in-depth investigations in the topic.
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Affiliation(s)
- Sevim Bavbek
- Division of Immunology and Allergy, Department of Chest Diseases, School of Medicine, Ankara University, Ankara, Turkey
| | - Seçil Kepil Özdemir
- Department of Chest Diseases, Allergy and Immunology Unit, İzmir Faculty of Medicine, Dr. Suat Seren Chest Diseases and Surgery Training and Research Hospital, University of Health Sciences, İzmir, Turkey
| | | | - Marina Atanaskovic-Markovic
- Department of Allergology and Pulmonology, Faculty of Medicine, University of Belgrade, University Children's Hospital, Belgrade, Serbia
| | - Annick Barbaud
- Département de dermatologie et allergologie, Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique, AP-HP, Sorbonne Université, Hôpital Tenon, Paris, France
| | - Knut Brockow
- Department of Dermatology and Allergy Biederstein, Faculty of Medicine, Technical University of Munich, Munich, Germany
| | - Jose Laguna Martinez
- Allergy Unit, Allergo-Anaesthesia Unit, Faculty of Medicine, Hospital Central de la Cruz Roja, Alfonso X El Sabio University, Madrid, Spain
| | - Alla Nakonechna
- Allergy and Clinical Immunology Department, University of Liverpool, Royal Preston Hospital, Lancashire Teaching Hospitals, NHS Foundation Trust, Liverpool, UK
| | - Mauro Pagani
- Medicine Department, Medicine Ward Mantova Hospital, ASST di Mantova, Mantova, Italy
| | | | - Carla Lombardo
- Division of Dermatology and Allergy, APSS - Trento Hospital, Trento, Italy
| | - Maria J Torres
- Allergy Unit, Regional University Hospital of Malaga, IBIMA-UMA-ARADyAL, Malaga, Spain
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Silverberg JI, Smith-Norowitz TA, Kohlhoff S, Joks R. Phosphorylated p38 MAP kinase expression by leucocytes is increased in allergic humans and associated with IgE responses. Scand J Immunol 2024; 99:e13343. [PMID: 38441376 DOI: 10.1111/sji.13343] [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: 06/28/2023] [Revised: 11/13/2023] [Accepted: 11/19/2023] [Indexed: 03/07/2024]
Abstract
Mitogen-activated protein kinases (MAPK) activate cascades that regulate cell proliferation, differentiation and death. Phosphorylated (phos-)p38 MAPK is a cell-signalling pathway associated with Th2 cytokine responses, which is required for immunoglobulin (Ig)E production. It is unknown whether MAPK are associated with IgE production. We examine the evidence linking p38 MAPK to inflammatory responses. Phos-p38, extracellular signal-related kinase (ERK) and c-JUN-n terminal (JNK) MAPK expression by blood leucocyte subsets and levels of serum Igs were measured in blood from adults with asthma and/or rhinoconjunctivitis (N = 28) and non-asthma (N = 10) (flow cytometry, microfluorenzymeimmunoassay). Peripheral blood mononuclear cells (PBMC) from allergic subjects were cultured for 10 days ± anti-CD40/recombinant IL-4 ± inhibitor of phos-P38. Culture supernatants were assayed for IgE (ELISA). Phos-p38 MAPK expression by all leucocyte subsets of allergic subjects was associated with serum IgE levels (p ≤ 0.01), after adjusting for cell counts, age, sex, race and smoking status (p ≤ 0.04). Leucocyte expression of phos-ERK and JNK did not correlate with IgE (p = 0.09-0.99). Instead, phos-ERK expression was associated with serum IgG. When PBMC from atopic subjects were cultured for 10 days with anti-CD40/rhIL-4, IgE levels were 26.2 ± 18 ng/mL. Inclusion of SB202190 (5-20 μg/mL), a specific inhibitor of phos-p38 MAPK, in culture suppressed IgE production in dose-dependent manner, with peak suppression obtained with SB202190 at 20 μg/mL (82.1% ± 11.8) (p = 0.0001), with virtually no cytotoxicity (<5%). Different MAPK pathways may be associated with IgE (p38) and IgG (ERK) responses. Phos-p38 MAPK can be a potential anti-allergy drug target.
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Affiliation(s)
- Jonathan I Silverberg
- Department of Dermatology, George Washington University School of Medicine and Health Sciences, Washington, District of Columbia, USA
| | - Tamar A Smith-Norowitz
- Department of Pediatrics, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
| | - Stephan Kohlhoff
- Department of Pediatrics, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
| | - Rauno Joks
- Department of Medicine, State University of New York Downstate Health Sciences University, Brooklyn, New York, USA
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Smilnak GJ, Lee Y, Chattopadhyay A, Wyss AB, White JD, Sikdar S, Jin J, Grant AJ, Motsinger-Reif AA, Li JL, Lee M, Yu B, London SJ. Plasma protein signatures of adult asthma. Allergy 2024; 79:643-655. [PMID: 38263798 DOI: 10.1111/all.16000] [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: 07/17/2023] [Revised: 11/08/2023] [Accepted: 12/04/2023] [Indexed: 01/25/2024]
Abstract
BACKGROUND Adult asthma is complex and incompletely understood. Plasma proteomics is an evolving technique that can both generate biomarkers and provide insights into disease mechanisms. We aimed to identify plasma proteomic signatures of adult asthma. METHODS Protein abundance in plasma was measured in individuals from the Agricultural Lung Health Study (ALHS) (761 asthma, 1095 non-case) and the Atherosclerosis Risk in Communities study (470 asthma, 10,669 non-case) using the SOMAScan 5K array. Associations with asthma were estimated using covariate adjusted logistic regression and meta-analyzed using inverse-variance weighting. Additionally, in ALHS, we examined phenotypes based on both asthma and seroatopy (asthma with atopy (n = 207), asthma without atopy (n = 554), atopy without asthma (n = 147), compared to neither (n = 948)). RESULTS Meta-analysis of 4860 proteins identified 115 significantly (FDR<0.05) associated with asthma. Multiple signaling pathways related to airway inflammation and pulmonary injury were enriched (FDR<0.05) among these proteins. A proteomic score generated using machine learning provided predictive value for asthma (AUC = 0.77, 95% CI = 0.75-0.79 in training set; AUC = 0.72, 95% CI = 0.69-0.75 in validation set). Twenty proteins are targeted by approved or investigational drugs for asthma or other conditions, suggesting potential drug repurposing. The combined asthma-atopy phenotype showed significant associations with 20 proteins, including five not identified in the overall asthma analysis. CONCLUSION This first large-scale proteomics study identified over 100 plasma proteins associated with current asthma in adults. In addition to validating previous associations, we identified many novel proteins that could inform development of diagnostic biomarkers and therapeutic targets in asthma management.
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Affiliation(s)
- Gordon J Smilnak
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Yura Lee
- Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Abhijnan Chattopadhyay
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Annah B Wyss
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Julie D White
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
- GenOmics and Translational Research Center, Biostatistics and Epidemiology Division, RTI International, Research Triangle Park, North Carolina, USA
| | - Sinjini Sikdar
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
- Department of Mathematics and Statistics, Old Dominion University, Norfolk, Virginia, USA
| | | | - Andrew J Grant
- MRC Biostatistics Unit, University of Cambridge, Cambridge, UK
| | - Alison A Motsinger-Reif
- Biostatistics and Computational Biology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Jian-Liang Li
- Integrative Bioinformatics Support Group, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Mikyeong Lee
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
| | - Bing Yu
- Department of Epidemiology, Human Genetics, and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Stephanie J London
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina, USA
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Kim EJ, Zhang Z, Hlobik M, Ho T, Huang JT. Urticaria in infants: A single-institution retrospective study. Pediatr Dermatol 2024; 41:260-262. [PMID: 38193388 DOI: 10.1111/pde.15519] [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: 10/03/2023] [Accepted: 12/16/2023] [Indexed: 01/10/2024]
Abstract
Urticaria in infants can cause significant anxiety in parents, especially if a trigger cannot be identified. In a retrospective study of 246 infants seen for urticaria of unknown etiology at Boston Children's Hospital, 88.2% had resolution of urticaria within 6 weeks. The etiology of urticaria was ultimately established in 62.6% (72/115) of acute urticaria and 12.5% (2/16) of chronic urticaria cases with follow-up data. Pediatric healthcare providers can counsel families that while etiology of urticaria is never determined in over 40% of infants, symptoms are most likely to resolve spontaneously.
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Affiliation(s)
- Eun Jae Kim
- Harvard Medical School, Boston, Massachusetts, USA
| | - Zinan Zhang
- Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Madeline Hlobik
- Dermatology Section, Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Tina Ho
- Harvard Medical School, Boston, Massachusetts, USA
- Dermatology Section, Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Jennifer T Huang
- Harvard Medical School, Boston, Massachusetts, USA
- Dermatology Section, Division of Immunology, Boston Children's Hospital, Boston, Massachusetts, USA
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35
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Bozek A, Mućka S, Miodonska M, Zlik A, Mroz-Dybowska M. Effect of sublingual immunotherapy on clinical and laboratory autoimmunity. Immunotherapy 2024; 16:235-241. [PMID: 38214133 PMCID: PMC10844896 DOI: 10.2217/imt-2023-0231] [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: 09/06/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024] Open
Abstract
Background: There still are few data on the long-term safety of sublingual immunotherapy (SLIT). The aim of this study was to assess the appearance of autoimmune diseases in patients before and after SLIT. Materials & methods: New cases of autoimmune diseases were monitored. Patients in the SLIT group (n = 816) were compared with controls (n = 1096). Results: The new incidences of autoimmune diseases in the SLIT group were lower compared with the control group: 18 (2.2%) versus 58 (5.3%); p < 0.05. Systemic lupus erythematosus, psoriasis and Hashimoto appeared much more often in the control group. Conclusion: SLIT had no significant effect on the induction of autoimmune diseases.
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Affiliation(s)
- Andrzej Bozek
- Clinical Department of Internal Diseases, Dermatology & Allergology, Medical University of Silesia, Katowice, Poland
| | - Szymon Mućka
- Clinical Department of Internal Diseases, Dermatology & Allergology, Medical University of Silesia, Katowice, Poland
| | - Martyna Miodonska
- Clinical Department of Internal Diseases, Dermatology & Allergology, Medical University of Silesia, Katowice, Poland
| | - Anna Zlik
- Clinical Department of Internal Diseases, Dermatology & Allergology, Medical University of Silesia, Katowice, Poland
| | - Magdalena Mroz-Dybowska
- Clinical Department of Internal Diseases, Dermatology & Allergology, Medical University of Silesia, Katowice, Poland
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36
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Gurgel RK, Baroody FM, Damask CC, Mims JW, Gardner DD, Reger CM, Reyes J, Dhepyasuwan N. Plain Language Summary: Immunotherapy for Inhalant Allergy. Otolaryngol Head Neck Surg 2024; 170:668-674. [PMID: 38408155 DOI: 10.1002/ohn.649] [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: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 02/28/2024]
Abstract
The plain language summary explains allergen immunotherapy to patients, families, and caregivers. The summary is for patients aged 5 years and older who are experiencing symptoms from inhalant allergies and are considering immunotherapy as a treatment option. It is based on the 2024 "Clinical Practice Guideline: Immunotherapy for Inhalant Allergy." This plain language summary is a companion publication to the full guideline, which provides greater detail for health care providers. Guidelines and their recommendations may not apply to every patient, but they can be used to find best practices and quality improvement opportunities.
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Affiliation(s)
| | - Fuad M Baroody
- The University of Chicago Medicine, Chicago, Illinois, USA
| | | | - James Whit Mims
- Wake Forest Baptist Health, Winston Salem, North Carolina, USA
| | | | - Christine M Reger
- University of Pennsylvania, Otolaryngology-Head and Neck Surgery, Philadelphia, Pennsylvania, USA
| | - Joe Reyes
- American Academy of Otolaryngology-Head and Neck Surgery Foundation, Alexandria, Virginia, USA
| | - Nui Dhepyasuwan
- American Academy of Otolaryngology-Head and Neck Surgery Foundation, Alexandria, Virginia, USA
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37
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Kuśmierek M, Chęsy A, Krogulska A. Diet Diversity During Infancy and the Prevalence of Sensitization and Allergy in Children up to 3 Years of Age in the Kujawsko-Pomorskie Voivodeship, Poland. Clin Pediatr (Phila) 2024; 63:375-387. [PMID: 37293949 DOI: 10.1177/00099228231175469] [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] [Indexed: 06/10/2023]
Abstract
The study examines the influence of a diversified diet, changes in the consistency of introduced foods, and the method of meal preparation during infancy on the development of sensitization and/or allergy in toddlers. Introducing more product groups into the diet reduced the risk of allergy at 6 months of age (adjusted odds ratio [aOR] = 0.17; 95% confidence interval [CI] 0.04-0.71; P = 0.015) and at 12 months (aOR = 0.14; 95% CI 0.03-0.57; P = 0.006). Children with allergy and/or sensitization had been introduced to fewer product groups at 6 months (P = 0.003; P < 0.001; P = 0.008) and at 12 months (P = 0.001, P < 0.001; P = 0.001) compared with those without allergy and/or sensitization. Children with allergy and/or sensitization were fed ready-made, ie, purchased, products significantly more often than self-prepared foods compared with children without allergy and/or sensitization (P = 0.001; P = 0.006). Allergic and/or sensitized children tended to be switched to solids later (11 vs 10 months, P = 0.041; P = 0.037) (12 vs 10 months, P = 0.013) than children without sensitization and/or allergy. The earlier introduction of a varied diet reduced the risk of allergy and/or sensitization. Delaying the introduction of solid foods and using ready-made products instead of self-prepared ones increases the risk of allergy in toddlers.
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Affiliation(s)
- Magdalena Kuśmierek
- Department of Paediatrics, Allergology and Gastroenterology, Ludwik Rydygier Collegium Medicum Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Andrzej Chęsy
- Higher School of Health Sciences in Bydgoszcz, Poland
| | - Aneta Krogulska
- Department of Paediatrics, Allergology and Gastroenterology, Ludwik Rydygier Collegium Medicum Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
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38
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Ordak M, Canonica GW, Paoletti G, Brussino L, Carvalho D, Di Bona D. Meta-analysis in allergy-Statistical recommendations. Allergy 2024. [PMID: 38425079 DOI: 10.1111/all.16091] [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: 01/24/2024] [Revised: 02/16/2024] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Affiliation(s)
- Michal Ordak
- Department of Pharmacotherapy and Pharmaceutical Care, Faculty of Pharmacy, Medical University of Warsaw, Warsaw, Poland
| | - Giorgio Walter Canonica
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Personalized Medicine, Asthma and Allergy, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Giovanni Paoletti
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
- Personalized Medicine, Asthma and Allergy, IRCCS Humanitas Research Hospital, Milan, Italy
| | - Liusa Brussino
- SCDU Immunologia e Allergologia, AO Ordine Mauriziano di Torino, Torino, Italy
- Dipartimento di Scienze Mediche, Università degli Studi di Torino, Torino, Italy
| | - Daniela Carvalho
- NOVA National School of Public Health, Public Health Research Centre, Universidade NOVA de Lisboa, Lisbon, Portugal
| | - Danilo Di Bona
- Department of Medical and Surgical Sciences, School of Allergology and Clinical Immu-nology, University of Foggia, Foggia, Italy
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39
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Korpela K, Hurley S, Ford SA, Franklin R, Byrne S, Lunjani N, Forde B, Neogi U, Venter C, Walter J, Hourihane J, O'Mahony L. Association between gut microbiota development and allergy in infants born during pandemic-related social distancing restrictions. Allergy 2024. [PMID: 38419554 DOI: 10.1111/all.16069] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/05/2024] [Accepted: 02/06/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Several hypotheses link reduced microbial exposure to increased prevalence of allergies. Here we capitalize on the opportunity to study a cohort of infants (CORAL), raised during COVID-19 associated social distancing measures, to identify the environmental exposures and dietary factors that contribute to early life microbiota development and to examine their associations with allergic outcomes. METHODS Fecal samples were sequenced from infants at 6 (n = 351) and repeated at 12 (n = 343) months, using 16S sequencing. Published 16S data from pre-pandemic cohorts were included for microbiota comparisons. Online questionnaires collected epidemiological information on home environment, healthcare utilization, infant health, allergic diseases, and diet. Skin prick testing (SPT) was performed at 12 (n = 343) and 24 (n = 320) months of age, accompanied by atopic dermatitis and food allergy assessments. RESULTS The relative abundance of bifidobacteria was higher, while environmentally transmitted bacteria such as Clostridia was lower in CORAL infants compared to previous cohorts. The abundance of multiple Clostridia taxa correlated with a microbial exposure index. Plant based foods during weaning positively impacted microbiota development. Bifidobacteria levels at 6 months of age, and relative abundance of butyrate producers at 12 months of age, were negatively associated with AD and SPT positivity. The prevalence of allergen sensitization, food allergy, and AD did not increase over pre-pandemic levels. CONCLUSIONS Environmental exposures and dietary components significantly impact microbiota community assembly. Our results also suggest that vertically transmitted bacteria and appropriate dietary supports may be more important than exposure to environmental microbes alone for protection against allergic diseases in infancy.
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Affiliation(s)
- Katri Korpela
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Sadhbh Hurley
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | | | - Ruth Franklin
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Susan Byrne
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | | | - Brian Forde
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
| | - Ujjwal Neogi
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Carina Venter
- Section of Allergy & Immunology, Department of Pediatrics, Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado, USA
| | - Jens Walter
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
| | - Jonathan Hourihane
- Paediatrics and Child Health, Royal College of Surgeons in Ireland, Dublin, Ireland
- Children's Health Ireland, Dublin, Ireland
| | - Liam O'Mahony
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- School of Microbiology, University College Cork, Cork, Ireland
- Department of Medicine, University College Cork, Cork, Ireland
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40
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Høj S, Thomsen SF, Meteran H, Sigsgaard T, Meteran H. Artificial intelligence and allergic rhinitis: does ChatGPT increase or impair the knowledge? J Public Health (Oxf) 2024; 46:123-126. [PMID: 37968109 DOI: 10.1093/pubmed/fdad219] [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: 05/22/2023] [Revised: 09/14/2023] [Accepted: 10/06/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Optimal management of allergic rhinitis requires patient education with easy access to accurate information. However, previous online platforms have provided misleading information. The demand for online medical information continues to grow, especially with the introduction of advanced chatbots like ChatGPT. METHODS This study aimed to evaluate the quality of information provided by ChatGPT regarding allergic rhinitis. A Likert scale was used to assess the accuracy of responses, ranging from 1 to 5. Four authors independently rated the responses from a healthcare professional's perspective. RESULTS A total of 20 questions covering various aspects of allergic rhinitis were asked. Among the answers, eight received a score of 5 (no inaccuracies), five received a score of 4 (minor non-harmful inaccuracies), six received a score of 3 (potentially misinterpretable inaccuracies) and one answer had a score of 2 (minor potentially harmful inaccuracies). CONCLUSIONS The variability in accuracy scores highlights the need for caution when relying solely on chatbots like ChatGPT for medical advice. Patients should consult qualified healthcare professionals and use online sources as a supplement. While ChatGPT has advantages in medical information delivery, its use should be approached with caution. ChatGPT can be useful for patient education but cannot replace healthcare professionals.
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Affiliation(s)
- Simon Høj
- Steno Diabetes Center Copenhagen, Copenhagen University Hospital, Herlev 2730, Denmark
- Department of Dermatology, Venereology, and Wound Healing Centre, Copenhagen University Hospital-Bispebjerg, Copenhagen 2400, Denmark
- Department of Public Health, Environment, Occupation, and Health, Aarhus University, Aarhus 8000, Denmark
| | - Simon F Thomsen
- Department of Dermatology, Venereology, and Wound Healing Centre, Copenhagen University Hospital-Bispebjerg, Copenhagen 2400, Denmark
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Hanieh Meteran
- Department of Internal Medicine, Section of Endocrinology, Copenhagen University Hospital-Hvidovre, Hvidovre 2650, Denmark
| | - Torben Sigsgaard
- Department of Public Health, Environment, Occupation, and Health, Aarhus University, Aarhus 8000, Denmark
| | - Howraman Meteran
- Department of Public Health, Environment, Occupation, and Health, Aarhus University, Aarhus 8000, Denmark
- Department of Internal Medicine, Respiratory Medicine Section, Copenhagen University Hospital-Hvidovre, Hvidovre 2650, Denmark
- Department of Respiratory Medicine, Zealand University Hospital Roskilde-Næstved, Næstved 4700, Denmark
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41
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Miyake K, Ito J, Takahashi K, Nakabayashi J, Brombacher F, Shichino S, Yoshikawa S, Miyake S, Karasuyama H. Single-cell transcriptomics identifies the differentiation trajectory from inflammatory monocytes to pro-resolving macrophages in a mouse skin allergy model. Nat Commun 2024; 15:1666. [PMID: 38396021 PMCID: PMC10891131 DOI: 10.1038/s41467-024-46148-4] [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: 03/08/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Both monocytes and macrophages are heterogeneous populations. It was traditionally understood that Ly6Chi classical (inflammatory) monocytes differentiate into pro-inflammatory Ly6Chi macrophages. Accumulating evidence has suggested that Ly6Chi classical monocytes can also differentiate into Ly6Clo pro-resolving macrophages under certain conditions, while their differentiation trajectory remains to be fully elucidated. The present study with scRNA-seq and flow cytometric analyses reveals that Ly6ChiPD-L2lo classical monocytes recruited to the allergic skin lesion sequentially differentiate into Ly6CloPD-L2hi pro-resolving macrophages, via intermediate Ly6ChiPD-L2hi macrophages but not Ly6Clo non-classical monocytes, in an IL-4 receptor-dependent manner. Along the differentiation, classical monocyte-derived macrophages display anti-inflammatory signatures followed by metabolic rewiring concordant with their ability to phagocytose apoptotic neutrophils and allergens, therefore contributing to the resolution of inflammation. The failure in the generation of these pro-resolving macrophages drives the IL-1α-mediated cycle of inflammation with abscess-like accumulation of necrotic neutrophils. Thus, we clarify the stepwise differentiation trajectory from Ly6Chi classical monocytes toward Ly6Clo pro-resolving macrophages that restrain neutrophilic aggravation of skin allergic inflammation.
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Affiliation(s)
- Kensuke Miyake
- Inflammation, Infection and Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan.
| | - Junya Ito
- Inflammation, Infection and Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Kazufusa Takahashi
- Inflammation, Infection and Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Jun Nakabayashi
- College of Liberal Arts and Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
| | - Frank Brombacher
- Institute of Infectious Disease and Molecular Medicine, International Center for Genetic and Biotechnology Cape Town Component & University of Cape Town, Cape Town, South Africa
| | - Shigeyuki Shichino
- Division of Molecular Regulation of Inflammatory and Immune Diseases, Research Institute of Biomedical Sciences, Tokyo University of Science, Noda, Japan
| | - Soichiro Yoshikawa
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Sachiko Miyake
- Department of Immunology, Juntendo University School of Medicine, Tokyo, Japan
| | - Hajime Karasuyama
- Inflammation, Infection and Immunity Laboratory, Advanced Research Institute, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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42
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Fernandez A, Danisman E, Taheri Boroujerdi M, Kazemi S, Moreno FJ, Epstein MM. Research gaps and future needs for allergen prediction in food safety. Front Allergy 2024; 5:1297547. [PMID: 38440401 PMCID: PMC10911423 DOI: 10.3389/falgy.2024.1297547] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 02/05/2024] [Indexed: 03/06/2024] Open
Abstract
The allergenicity and protein risk assessments in food safety are facing new challenges. Demands for healthier and more sustainable food systems have led to significant advances in biotechnology, the development of more complex foods, and the search for alternative protein sources. All this has increased the pressure on the safety assessment prediction approaches anchored into requirements defined in the late 90's. In 2022, the EFSA's Panel on Genetically Modified Organisms published a scientific opinion focusing on the developments needed for allergenicity and protein safety assessments of new products derived from biotechnology. Here, we further elaborate on the main elements described in this scientific opinion and prioritize those development needs requiring critical attention. The starting point of any new recommendation would require a focus on clinical relevance and the development of a fit-for-purpose database targeted for specific risk assessment goals. Furthermore, it is imperative to review and clarify the main purpose of the allergenicity risk assessment. An internationally agreed consensus on the overall purpose of allergenicity risk assessment will accelerate the development of fit-for-purpose methodologies, where the role of exposure should be better clarified. Considering the experience gained over the last 25 years and recent scientific developments in the fields of biotechnology, allergy, and risk assessment, it is time to revise and improve the allergenicity safety assessment to ensure the reliability of allergenicity assessments for food of the future.
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Affiliation(s)
- A. Fernandez
- European Food Safety Authority (EFSA), Parma, Italy
| | - E. Danisman
- Experimental Allergy Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - M. Taheri Boroujerdi
- Experimental Allergy Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - S. Kazemi
- Experimental Allergy Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - F. J. Moreno
- Instituto de Investigación en Ciencias de la Alimentación (CIAL), CSIC-UAM, CEI (UAM+CSIC), Madrid, Spain
| | - M. M. Epstein
- Experimental Allergy Laboratory, Department of Dermatology, Medical University of Vienna, Vienna, Austria
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Bao C, Abraham SN. Mast cell-sensory neuron crosstalk in allergic diseases. J Allergy Clin Immunol 2024:S0091-6749(24)00183-0. [PMID: 38373476 DOI: 10.1016/j.jaci.2024.02.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 01/12/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
Mast cells (MCs) are tissue-resident immune cells, well-positioned at the host-environment interface for detecting external antigens and playing a critical role in mobilizing innate and adaptive immune responses. Sensory neurons are afferent neurons innervating most areas of the body but especially in the periphery, where they sense external and internal signals and relay information to the brain. The significance of MC-sensory neuron communication is now increasingly becoming recognized, especially because both cell types are in close physical proximity at the host-environment interface and around major organs of the body and produce specific mediators that can activate each other. In this review, we explore the roles of MC-sensory neuron crosstalk in allergic diseases, shedding light on how activated MCs trigger sensory neurons to initiate signaling in pruritus, shock, and potentially abdominal pain in allergy, and how activated sensory neurons regulate MCs in homeostasis and atopic dermatitis associated with contact hypersensitivity and type 2 inflammation. Throughout the review, we also discuss how these 2 sentinel cell types signal each other, potentially resulting in a positive feedback loop that can sustain inflammation. Unraveling the mysteries of MC-sensory neuron crosstalk is likely to unveil their critical roles in various disease conditions and enable the development of new therapeutic approaches to combat these maladies.
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Affiliation(s)
- Chunjing Bao
- Department of Pathology, Duke University Medical Center, Durham, NC
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC; Department of Immunology, Duke University Medical Center, Durham, NC; Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC; Department of Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore, Singapore.
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Gupta S, Viotti A, Eichwald T, Roger A, Kaufmann E, Othman R, Ghasemlou N, Rafei M, Foster SL, Talbot S. Navigating the blurred path of mixed neuro-immune signaling. J Allergy Clin Immunol 2024:S0091-6749(24)00184-2. [PMID: 38373475 DOI: 10.1016/j.jaci.2024.02.006] [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: 10/11/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/21/2024]
Abstract
Evolution has created complex mechanisms to sense environmental danger and protect tissues, with the nervous and immune systems playing pivotal roles. These systems work together, coordinating local and systemic reflexes to restore homeostasis in response to tissue injury and infection. By sharing receptors and ligands, they influence the pathogenesis of various diseases. Recently, a less explored aspect of neuro-immune communication has emerged: the release of neuropeptides from immune cells and cytokines/chemokines from sensory neurons. This paper reviews evidence of this unique neuro-immune interplay and its impact on the development of allergy, inflammation, itch, and pain. We highlight the effects of this neuro-immune signaling on vital processes such as host defense, tissue repair, and inflammation resolution, providing avenues for exploration of the underlying mechanisms and therapeutic potential of this signaling.
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Affiliation(s)
- Surbhi Gupta
- Centre for Neuroscience Studies, Queen's University, Kingston, Ontario, Canada
| | - Alice Viotti
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Tuany Eichwald
- Department of Pharmacology and Physiology, Karolinska Institutet, Solna, Stockholm County, Sweden; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Anais Roger
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada; Aix-Marseille University, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Eva Kaufmann
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Rahmeh Othman
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Nader Ghasemlou
- Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada
| | - Moutih Rafei
- Department of Pharmacology and Physiology, University of Montréal, Montréal, Québec, Canada
| | - Simmie L Foster
- Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Sebastien Talbot
- Department of Pharmacology and Physiology, Karolinska Institutet, Solna, Stockholm County, Sweden; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, Canada.
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Emanuel E, Arifuzzaman M, Artis D. Epithelial-neuronal-immune cell interactions: implications for immunity, inflammation, and tissue homeostasis at mucosal sites. J Allergy Clin Immunol 2024:S0091-6749(24)00182-9. [PMID: 38369030 DOI: 10.1016/j.jaci.2024.02.004] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 02/20/2024]
Abstract
The epithelial lining of the respiratory tract and intestine provides a critical physical barrier to protect host tissues against environmental insults including dietary antigens, allergens, chemicals, and microorganisms. In addition, specialized epithelial cells directly communicate with hematopoietic and neuronal cells. These epithelial-immune and epithelial-neuronal interactions control host immune responses and have important implications for inflammatory conditions associated with defects in the epithelial barrier, including asthma, allergy, and inflammatory bowel diseases (IBD). In this review, we discuss emerging research that identifies the mechanisms and impact of epithelial-immune and epithelial-neuronal crosstalk in regulating immunity, inflammation, and tissue homeostasis at mucosal barrier surfaces. Understanding the regulation and impact of these pathways could provide new therapeutic targets for inflammatory diseases at mucosal sites.
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Affiliation(s)
- Elizabeth Emanuel
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Medicine; New York, NY 10021, USA
| | - Mohammad Arifuzzaman
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA
| | - David Artis
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Joan and Sanford I. Weill Department of Medicine, Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Medicine; New York, NY 10021, USA; Friedman Center for Nutrition and Inflammation, Joan and Sanford I. Weill Department of Medicine, Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY 10021, USA; Allen Discovery Center for Neuroimmune Interactions, New York, NY 10029, USA.
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Lorentzen JC, Ekberg O, Alm M, Björk F, Harderup LE, Johanson G. Mold Odor from Wood Treated with Chlorophenols despite Mold Growth That Can Only Be Seen Using a Microscope. Microorganisms 2024; 12:395. [PMID: 38399798 PMCID: PMC10891868 DOI: 10.3390/microorganisms12020395] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 01/30/2024] [Accepted: 02/03/2024] [Indexed: 02/25/2024] Open
Abstract
We previously reported that indoor odorous chloroanisoles (CAs) are still being emitted due to microbial methylation of hazardous chlorophenols (CPs) present in legacy wood preservatives. Meanwhile, Swedish researchers reported that this malodor, described since the early 1970s, is caused by hazardous mold. Here, we examined to what extent CP-treated wood contains mold and if mold correlates with perceived odor. We found no studies in PubMed or Web of Science addressing this question. Further, we investigated two schools built in the 1960s with odor originating from crawlspaces. No visible mold was evident in the crawlspaces or on the surfaces of treated wood samples. Using a microscope, varying amounts of mold growth were detected on the samples, all containing both CP(s) and CA(s). Some samples smelled, and the odor correlated with the amount of mold growth. We conclude that superficial microscopic mold on treated wood suffices produced the odor. Further, we argue that CPs rather than mold could explain the health effects reported in epidemiological studies that use mold odor as an indicator of hazardous exposure.
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Affiliation(s)
- Johnny C. Lorentzen
- Integrative Toxicology, Institute of Environmental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden;
- Centre for Occupational and Environmental Medicine, Region Stockholm, SE-113 65 Stockholm, Sweden
| | - Olle Ekberg
- Division of Building Physics, Lund University, SE-221 00 Lund, Sweden; (O.E.); (L.-E.H.)
| | - Maria Alm
- Urban Property Department, SE-402 26 Gothenburg, Sweden;
| | - Folke Björk
- KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden;
| | - Lars-Erik Harderup
- Division of Building Physics, Lund University, SE-221 00 Lund, Sweden; (O.E.); (L.-E.H.)
| | - Gunnar Johanson
- Integrative Toxicology, Institute of Environmental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden;
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Nicola S, Mazzola M, Lo Sardo L, Montabone E, Badiu I, Corradi F, Azzolina MCR, Dall’Acqua MG, Rolla G, Ridolfi I, Quinternetto A, Brussino L. Safety and Tolerability of COVID-19 Vaccine in Mast Cell Disorders Real-Life Data from a Single Centre in Italy. Vaccines (Basel) 2024; 12:202. [PMID: 38400185 PMCID: PMC10893122 DOI: 10.3390/vaccines12020202] [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: 01/08/2024] [Revised: 02/02/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Background In the past three years, COVID-19 has had a significant impact on the healthcare systems and people's safety worldwide. Mass vaccinations dramatically improved the health and economic damage caused by SARS-CoV-2. However, the safety of COVID-19 vaccines in patients at high risk of allergic reactions still has many unmet needs that should be clarified. Material and methods A retrospective, single-centre study was performed by collecting demographic and clinical data of patients with Mast Cell Disorders (MCDs) to evaluate the safety and tolerability of COVID-19 vaccinations. Moreover, any changes in the natural history of the underlying disease following the vaccine have been evaluated. Results This study included 66 patients affected with MCDs. Out of them, 52 (78.8%) received a COVID-19 vaccination and 41 (78.8%) completed the vaccination course. Premedication came first in 86.6% of our patients. A total of seven (4.5%) patients complained about an immediate reaction and two (1.3%) had a late reaction. Worsening of MCD history was observed in a single patient. Conclusions Despite the overall high risk of allergic reactions, our study did not reveal any increased risk for SARS-CoV-2 allergic reactions in MCD patients, thus supporting the recommendation in favour of the SARS-CoV-2 vaccination. However, due to the potentially increased rate of anaphylactic reactions, MCD patients should receive vaccine premedication and should be treated in a hospital setting after an allergological specialistic evaluation.
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Affiliation(s)
- Stefania Nicola
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Marina Mazzola
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Luca Lo Sardo
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
| | - Erika Montabone
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Iuliana Badiu
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
| | - Federica Corradi
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
| | - Maria Carmen Rita Azzolina
- Health Direction, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (M.C.R.A.)
| | | | - Giovanni Rolla
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Irene Ridolfi
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Anna Quinternetto
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
| | - Luisa Brussino
- SCDU Immunologia e Allergologia, A.O. Ordine Mauriziano di Torino, C.so Re Umberto 109, 10128 Torino, Italy; (S.N.); (M.M.); (L.L.S.); (E.M.); (I.B.); (F.C.); (A.Q.); (L.B.)
- Department of Medical Sciences, University of Torino, C.so AM Dogliotti, 14, 10126 Torino, Italy;
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Mann J, Cox V, Gorman S, Calissi P. Barriers to and Facilitators of Delabelling of Antimicrobial Allergies: A Qualitative Meta-synthesis. Can J Hosp Pharm 2024; 77:e3490. [PMID: 38357298 PMCID: PMC10846797 DOI: 10.4212/cjhp.3490] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 08/11/2023] [Indexed: 02/16/2024]
Abstract
Background Patients who report penicillin allergies may receive alternative antibiotics. Such substitution contributes to antimicrobial resistance, lower treatment efficacy, increased frequency of adverse events, and increased costs. Approximately 90% of individuals who report a penicillin allergy can tolerate a penicillin. Objective To identify the barriers to and facilitators of removal by health care workers of inaccurate antimicrobial allergies from patient records, known as delabelling. Data Sources The MEDLINE database was searched from inception to December 29, 2020. Study Selection and Data Extraction Qualitative studies evaluating health care professionals' perceptions of barriers to and/or facilitators of the act of delabelling a patient's antimicrobial allergies were included in the meta-synthesis. Data Synthesis The Theoretical Domains Framework was used to code and group individual utterances from the included studies, which were mapped to the Behaviour Change Wheel and corresponding intervention function and policy categories. Results Four studies met the inclusion criteria. Eight themes were identified as representing barriers to delabelling: delabelling skills, patient education skills, knowledge, electronic health records (EHRs), communication frameworks, time, fear about allergic reactions, and professional roles. Behaviour change interventions that may overcome these barriers include education, training, algorithms and toolkits, changes to EHRs, use of dedicated personnel, policies, incentivization of correct labelling, and an audit system. Conclusions Eight themes were identified as barriers to delabelling of antimicrobial allergies. Future behaviour change interventions to address these barriers were proposed. Confidence in the findings of this study was judged to be moderate, according to the GRADE CERQual approach.
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Affiliation(s)
- Juliana Mann
- , BSc(Pharm), ACPR, is a Clinical Pharmacist with the East Kootenay Regional Hospital, Cranbrook, British Columbia
| | - Victoria Cox
- , BSc(Pharm), ACPR, PharmD, is a Clinical Pharmacy Specialist, Infectious Diseases, Kelowna General Hospital, Kelowna, British Columbia
| | - Sean Gorman
- , BSc(Pharm), PharmD, is Pharmacy Director, East and South Interior Health Pharmacy Services, Kelowna, British Columbia
| | - Piera Calissi
- , BSc(Pharm), PharmD, FSCHP, is Coordinator, Antimicrobial Stewardship Program, Interior Health, Kelowna, British Columbia
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Yang B, Yu H, Yao W, Diao R, Li B, Wang Y, Li T, Ge L, Hu Y, Wang H. Food-specific IgG4-guided diet elimination improves allergy symptoms in children. Front Immunol 2024; 15:1281741. [PMID: 38420126 PMCID: PMC10899459 DOI: 10.3389/fimmu.2024.1281741] [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: 08/23/2023] [Accepted: 01/25/2024] [Indexed: 03/02/2024] Open
Abstract
Allergic diseases in children are major public health concerns due to their widespread and rising prevalence. Food-specific immunoglobulin G4(FS-IgG4) has been detected in patients with allergic diseases, but its clinical significance is still debated. In the present study, 407 children with allergic diseases were recruited and categorized into three groups according to the different systems involved: the respiratory system group, the skin system group, and a multiple system group, with the collection of clinical symptoms and serum antibodies, including total immunoglobulin E (IgE), house dust mite (HDM) IgE, food-specific IgE (FS-IgE), and FS-IgG4. Part of these patients were followed up with the intervention of FS-IgG4-guided diet elimination with or without add-on probiotics supplement. The analysis at baseline revealed distinct serum levels of different antibodies. The positive rate of FS-IgG4 in all groups was more than 80%, and the proportion of total IgE and FS-IgG4 both positive in the multi-system group was the highest (p=0.039). Egg and milk were the foods with the highest positive rate of FS-IgG4 in all groups. After diet elimination for more than 3 months, serum FS-IgG4 in children significantly decreased (P<0.05) along with the improvement of clinical symptoms, regardless of the add-on of probiotics. However, the intervention did not impact the serum levels of total IgE, FS-IgE, and HDM IgE. There was no further decrease of serum FS-IgG4 level in children followed up for more than 1 year, which may be related to noncompliance with diet elimination. Multivariate regression analysis revealed that the decline of serum FS-IgG4 was an independent predictable factor for the improvement of clinical symptoms (adjusted OR:1.412,95%CI 1.017-1.96, p=0.039). The add-on of probiotics showed less efficiency in reducing the FS-IgG4 level in more patients with relief of clinical symptoms. Our results confirmed the correlation between FS-IgG4 and allergic diseases, and the decreased FS-IgG4 could be a useful predictor for the improvement of allergic symptoms. FS-IgG4-guided diet elimination is an efficient treatment for allergic diseases. Our study adds solid data to the clinical significance of FS-IgG4 in allergic diseases.
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Affiliation(s)
- Boyun Yang
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hanxiao Yu
- Clinical Research Center, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wo Yao
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ran Diao
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Bohui Li
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yongfang Wang
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ting Li
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Liuya Ge
- Outpatient Care Department, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yingying Hu
- Outpatient Care Department, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Huiying Wang
- Department of Allergy, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Yan Z, Feng X, Li X, Gao Z, Wang Z, Ren G, Long F. Sea Buckthorn Flavonoid Extracted by High Hydrostatic Pressure Inhibited IgE-Stimulated Mast Cell Activation through the Mitogen-Activated Protein Kinase Signaling Pathway. Foods 2024; 13:560. [PMID: 38397537 PMCID: PMC10887968 DOI: 10.3390/foods13040560] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/25/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Sea buckthorn (Hippophaë rhamnoides L.), as one of the Elaeagnaceae family, has the significant function of anti-tumor, anti-inflammation, anti-oxidation, and other physiological activities. High hydrostatic pressure (HHP) extraction has the advantages of being easy and efficient, while maintaining biological activity. In this study, sea buckthorn flavonoid (SBF) was extracted with HHP and purified sea buckthorn flavonoid (PSBF) was isolated by AB-8 macroporous resin column. HPLC analysis was used to quantified them. In addition, the effect of anti-allergy in RBL-2H3 cells by SBF, PSBF, and their flavonoid compounds was evaluated. The results demonstrate the conditions for obtaining the maximum flavonoid amount of SBF: 415 MPa for 10 min, 72% ethanol concentration, and a liquid to solid ratio of 40 mL/g, which increased the purity from 1.46% to 13.26%. Both SBF and PSBF included rutin, quercitrin, quercetin, isorhamnetin, and kaempferol. In addition, quercitrin, kaempferol, and SBF could regulate Th1/Th2 cytokine balance. Moreover, extracellular Ca2+ influx was reduced by quercitrin and PSBF. Furthermore, rutin, quercetin, iso-rhamnetin, and SBF could also inhibit P-p38 and P-JNK expression, thereby suppressing the phosphorylation of the MAPK signaling pathways. Overall, SBF is effective for relieving food allergy and might be a promising anti-allergic therapeutic agent.
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Affiliation(s)
- Zhuomin Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
| | - Xiaoping Feng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
| | - Xinian Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
| | - Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
| | - Zhouli Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
| | - Guangxu Ren
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Beijing 100081, China;
| | - Fangyu Long
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (Z.Y.); (X.F.); (X.L.); (Z.G.); (Z.W.)
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