Frontiers in allergy最新文献

{"title":"Case Report: Multidisciplinary management of a patient with indolent systemic mastocytosis and refractory symptoms.","authors":"Matthew J Hamilton, Loren W Greene, Lauren M Madigan, Sa A Wang, Cecilia Arana Yi, Andrew Kuykendall, Tracy I George, Mariana C Castells","doi":"10.3389/falgy.2024.1401187","DOIUrl":"10.3389/falgy.2024.1401187","url":null,"abstract":"<p><p>Systemic mastocytosis (SM) is a rare hematologic condition characterized by the proliferation and accumulation in tissue of clonal mast cells in multiple organ systems. The release of mast cell mediators in the indolent disease type and the predominant mast cell infiltration of tissues in advanced disease contribute to the heterogeneous clinical presentation. The disease driver in >90% of adult cases is an activating <i>KIT</i> mutation, with D816V being the most frequent. Here we describe a case of a young adult male presenting with osteoporosis with associated symptoms of reflux and a history of bee sting anaphylaxis. A multidisciplinary approach to the diagnosis and management was required to minimize morbidities and prevent complications. Current best supportive care was inadequate to control the patient's disease, and a selective KIT D816V inhibitor (avapritinib) was initiated. Conventional, and advanced therapies, including those in the treatment pipeline for SM are discussed.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11527781/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diagnosis and management of shrimp allergy.","authors":"Bin Brenda Su, Warren Blackmon, Chun Xu, Christopher Holt, Nathaniel Boateng, Darren Wang, Vibha Szafron, Aikaterini Anagnostou, Sara Anvari, Carla M Davis","doi":"10.3389/falgy.2024.1456999","DOIUrl":"10.3389/falgy.2024.1456999","url":null,"abstract":"<p><p>Shrimp allergy, the most common food allergy in the United States, affects up to 2% of the population. Its etiology is multi-factorial with the combination of genetic predisposition and environmental exposures. This review summarizes the latest diagnosis and management strategies for shrimp allergy. Currently, the double-blind, placebo-controlled food challenge is the gold standard for diagnosis. Moreover, mainstream and experimental management strategies include food allergen avoidance, the FDA-approved omalizumab, and oral immunotherapy. Herein, we emphasize the urgent need to develop more effective diagnostic tools and therapies for shrimp allergy.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11527777/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"When allergies have no name: is idiopathic anaphylaxis driven by co-factors?","authors":"Shuayb Elkhalifa, Haggar Elbashir, Mohamed Abuzakouk","doi":"10.3389/falgy.2024.1468945","DOIUrl":"10.3389/falgy.2024.1468945","url":null,"abstract":"<p><p>Idiopathic anaphylaxis (IA) is a severe allergic reaction without identifiable external triggers, presenting significant challenges in diagnosis and management. However, growing evidence suggests that many cases classified as idiopathic may actually be driven by cofactors such as exercise, hormonal fluctuations, medications, or hidden allergens. This mini-review explores the evolving understanding of IA, highlighting the role of these cofactors in triggering or amplifying anaphylactic reactions. It emphasizes how advances in diagnostic tools, including component-resolved diagnostics, are helping to identify previously undetected allergens, leading to more accurate diagnoses and reducing the prevalence of true idiopathic cases. As our knowledge of anaphylaxis and its underlying mechanisms deepens, the need for comprehensive evaluations that account for cofactor involvement becomes increasingly clear. Continued research in this area is essential to improve patient outcomes and better manage this complex condition.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11527779/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142570484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Key differences between chronic inducible and spontaneous urticaria.","authors":"Mojca Bizjak, Mitja Košnik","doi":"10.3389/falgy.2024.1487831","DOIUrl":"10.3389/falgy.2024.1487831","url":null,"abstract":"<p><strong>Introduction: </strong>The latest international EAACI/GA²LEN/EuroGuiDerm/APAAACI guideline for urticaria recommends limited laboratory testing for chronic spontaneous urticaria (CSU) and selective testing for only certain chronic inducible urticaria (CIndU) subtypes, though the rationale for these recommendations is poorly explained. This study aimed to improve the understanding of CIndU subtypes by comprehensively comparing their demographic, clinical, and laboratory characteristics with those of the better-characterized CSU.</p><p><strong>Methods: </strong>We conducted a retrospective analysis of 567 patients (median age 41 years, 67% female) diagnosed with CSU, symptomatic dermographism (SD), cold urticaria (ColdU), cholinergic urticaria (CholU), and delayed pressure urticaria (DPU).</p><p><strong>Results: </strong>Our findings revealed that patients with SD, ColdU, and CholU had lower levels of C-reactive protein (CRP), higher total serum immunoglobulin E (IgE) levels, and higher basophil counts compared to CSU patients. These subtypes also had distinct demographic and clinical features, such as a younger age of onset and a longer disease duration. In contrast, patients with DPU had significantly higher CRP levels and neutrophil counts compared to those with CSU.</p><p><strong>Discussion: </strong>These findings highlight the heterogeneity among chronic urticaria subtypes, suggesting that a tailored approach to laboratory testing may be more effective. The distinct immunological and clinical features observed in CIndU subtypes suggest a need for subtype-specific diagnostic and therapeutic guidelines.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11524999/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Allergenic protein-induced type I hypersensitivity models: a review.","authors":"Yanhua Feng, Liangyu Xu, Jinming Zhang, Jinlian Bin, Xialing Pang, Sheng He, Lei Fang","doi":"10.3389/falgy.2024.1481011","DOIUrl":"10.3389/falgy.2024.1481011","url":null,"abstract":"<p><strong>Context: </strong>Type I hypersensitivity affects approximately one-third of the global population. As the pathophysiology underlying the development of type I hypersensitivity (asthma, food allergy, and anaphylactic shock, etc.) is complex and heterogeneous, animal model studies continue to be the key to identifying novel molecular pathways and providing therapeutic strategies.</p><p><strong>Objective: </strong>Selection of the animal model should be done with careful consideration of the protocol variables, animal species, and strains to accurately reflect the clinical symptoms typical of humans.</p><p><strong>Methods: </strong>The following databases were searched: PubMed and Web of Science.</p><p><strong>Results and conclusion: </strong>Foreign allergens include allergenic proteins and chemical haptens. This review summarizes the various methods used for designing animal models of common allergenic protein-induced type I hypersensitivity, namely, passive anaphylaxis model, active systemic anaphylaxis/anaphylaxis shock model, food allergy model, asthma model, and IgE-mediated cell models. Additionally, we summarize shrimp tropomyosin-induced type I hypersensitivity models from our previous studies and discuss their advantages and limitations compared with that of ovalbumin-induced models.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11525013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142559629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mediation of mammalian olfactory response by presence of odor-evoked potassium current.","authors":"Samantha Hagerty, Oleg Pustovyy, Ludmila Globa, Vitaly Vodyanoy, Melissa Singletary","doi":"10.3389/falgy.2024.1478529","DOIUrl":"10.3389/falgy.2024.1478529","url":null,"abstract":"<p><p>It is well understood that odorants interact with specialized G-protein coupled receptors embedded in the ciliary membrane of olfactory sensory neurons (OSN) which initiates a voltage-generating intracellular cascade of signal transduction events that can be recorded at the epithelial level as an electroolfactogram (EOG). While the depolarizing excitatory pathway in vertebrates involving cyclic adenosine monophosphate (cAMP)-induced Na⁺/Ca²⁺ influx and calcium-induced Cl^- efflux is well established, there is evidence of potassium-associated inhibitory currents that correspond with cellular activation. While several Ca²⁺-dependent feedback mechanisms contribute to cellular deactivation which have been commonly attributed to these inhibitory currents, the frequently observed positive ionic conductance prior to excitatory depolarization have led many to suggest an additional earlier inhibitory mechanism at the receptor level that may be independent of downstream calcium influx. Due to conflicting conclusions, the role and mechanism behind Ca²⁺-independent inhibitory currents in olfactory cells is not fully understood. We investigated the functional and temporal involvement of potassium channels in odor transduction by comparing electroolfactogram (EOG) recordings in rat olfactory epithelia following ion channel inhibition and targeted activation of downstream components with or without potassium-blocking. Several K⁺-channel blocking agents (4-Aminopyridine, charybdotoxin, & iberiotoxin) demonstrated a diminished pre-action potential positive current that corresponded with reduced excitatory response to odor stimulation that was recovered when blockers were removed. We further assessed EOG responses in the absence of odor or with odor response enhancing zinc nanoparticles. Chemically eliciting membrane excitation in the absence of odor stimulation with a phosphodiesterase inhibitor, 3-isobutyl-1-methylxanthine (IBMX), in combination with K⁺-channel inhibition, further indicated potassium channel activation precedes excitatory events and is independent of cAMP-induced calcium influx. These results support previous findings of odor-activated inhibitory potassium currents that may play a functional role in subsequent G-protein activity.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11521970/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142549310","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Short-term influence of Immufen™ on mild allergic rhinitis: a randomized, double-blind, placebo-controlled study.","authors":"Mamatha K, Manu Kanjoormana Aryan, Prathibha Prabhakaran, Johannah Natinga Mulakal, Syam Das S, Krishnakumar Im, Sreejith Parameswara Panicker","doi":"10.3389/falgy.2024.1390813","DOIUrl":"10.3389/falgy.2024.1390813","url":null,"abstract":"<p><strong>Introduction: </strong>Allergic rhinitis (AR) is an IgE-mediated reaction to inhaled allergens, and is a prominent health concern affecting approximately 400 million people worldwide. A comprehensive understanding of AR's pathophysiology is imperative for developing novel therapies, especially considering its frequent co-morbidity with asthma and conjunctivitis. The escalating prevalence of AR is correlated with increased urbanization and environmental pollutants, recognized as prominent contributing factors. Dysregulation in immune networks, Th1/Th2 cytokine imbalance, activation of mast cells and eosinophils are implicated in AR progression. Classic AR symptoms include nasal congestion, nasal itching, rhinorrhea, and sneezing which significantly impact the quality of life, social interactions, and workplace productivity.</p><p><strong>Methods: </strong>This randomized, double-blind, placebo-controlled, three-arm, three-sequence study was aimed to assess the efficacy of supplementation of a co-delivery form of turmeric extract with ashwagandha extract (CQAB) in comparison with a bioavailable curcumin (CGM) and placebo in alleviating AR symptoms and enhancing the quality of life in individuals with mild AR. Participants received either placebo, CGM, or CQAB twice/day for 28 days, and subjective measures were recorded at the baseline and at the end of study.</p><p><strong>Results: </strong>CQAB supplementation demonstrated a significant (<i>P</i> < 0.05) improvement in Total Nasal Symptom Score (TNSS) compared to placebo and CGM. Furthermore, CQAB administration resulted in enhanced sleep quality (<i>P</i> < 0.05) as evaluated by the BIS questionnaire, heightened energy levels, and decreased fatigue and overall mood disturbance (POMS-SF) compared to both placebo and CGM.</p><p><strong>Conclusion: </strong>The results suggests that CQAB has the potential to be used as a dietary supplement in alleviating AR discomforts.</p><p><strong>Clinical trial registration: </strong>https://ctri.nic.in/Clinicaltrials/login.php; Identifier CTRI/2021/01/030355.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanisms of microbe-mediated immune development in the context of antibiotics and asthma.","authors":"Katherine Donald, B Brett Finlay","doi":"10.3389/falgy.2024.1469426","DOIUrl":"10.3389/falgy.2024.1469426","url":null,"abstract":"<p><p>The gut houses 70%-80% of the body's immune cells and represents the main point of contact between the immune system and the outside world. Immune maturation occurs largely after birth and is guided by the gut microbiota. In addition to the many human clinical studies that have identified relationships between gut microbiota composition and disease outcomes, experimental research has demonstrated a plethora of mechanisms by which specific microbes and microbial metabolites train the developing immune system. The healthy maturation of the gut microbiota has been well-characterized and discreet stages marked by changes in abundance of specific microbes have been identified. Building on Chapter 8, which discusses experimental models used to study the relationship between the gut microbiota and asthma, the present review aims to dive deeper into the specific microbes and metabolites that drive key processes in immune development. The implications of microbiota maturation patterns in the context of asthma and allergies, as well as the effects of antibiotics on microbe-immune crosstalk, will also be discussed.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11513386/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142523771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A case report of food-dependent exercise-induced anaphylaxis (FDEIA) treated with omalizumab.","authors":"Sara Mohamed, Sherin Thalappil, Ramzy Mohamed Ali","doi":"10.3389/falgy.2024.1472320","DOIUrl":"10.3389/falgy.2024.1472320","url":null,"abstract":"<p><p>Food-dependent exercise-induced anaphylaxis (FDEIA) is a rare and complex clinical condition in which allergic reactions are triggered by specific foods combined with physical activity, even though the food allergen and exercise are tolerated individually. Wheat is the most common culprit food leading to wheat dependent exercise induced anaphylaxis (WDEIA). Management of FDEIA is challenging due to the unpredictability of attacks and the lack of approved prophylactic medications. This report presents a case of successful symptom control in a young woman with WDEIA through the addition of omalizumab to the treatment regimen. To our knowledge, this is the first reported case of food-dependent exercise-induced anaphylaxis (FDEIA) treated with omalizumab as the primary indication. We also summarize the pathophysiology, diagnosis and treatment of FDEIA. The need for heightened awareness and innovative therapeutic approaches is crucial for those affected by FDEIA.</p>","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11502384/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142514115","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Editorial: The current role of allergy in otolaryngological disorders.","authors":"Luca Giovanni Locatello, David Lobo, Alberto Maria Saibene, Carlo Pucillo","doi":"10.3389/falgy.2024.1498340","DOIUrl":"https://doi.org/10.3389/falgy.2024.1498340","url":null,"abstract":"","PeriodicalId":73062,"journal":{"name":"Frontiers in allergy","volume":null,"pages":null},"PeriodicalIF":3.3,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11499935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142514116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}