3,243 results match your criteria: "Allergy Center[Affiliation]"

Navigating the metabolic landscape of regulatory T cells: from autoimmune diseases to tumor microenvironments.

Curr Opin Immunol

February 2025

Experimental and Molecular Immunology, Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg; Immunology and Genetics, Luxembourg Centre for Systems Biomedicine, University of Luxembourg, 7, Avenue des Hauts Fourneaux, Esch-sur-Alzette, Luxembourg; Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Center, Odense University Hospital, University of Southern Denmark, Odense, Denmark. Electronic address:

Regulatory T cells (Tregs) are essential for maintaining immune homeostasis, playing crucial roles in modulating autoimmune conditions and contributing to the suppressive tumor microenvironment. Their cellular metabolism governs their generation, stability, proliferation, and suppressive function. Enhancing Treg metabolism to boost their suppressive function offers promising therapeutic potential for alleviating inflammatory symptoms in autoimmune diseases.

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Background: Peanut allergy is a common, life-threatening food allergy in children. We evaluated whether dupilumab, which blocks the activity of interleukin (IL)-4/IL-13, enhances the efficacy of oral immunotherapy (OIT) AR101 in pediatric patients with peanut allergy.

Methods: A Phase II, multicenter, randomized, double-blind study was conducted in the USA (NCT03682770) in pediatric patients (6-≤ 17 years old) with confirmed peanut allergy.

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Background: pneumonia (MPP) is a common disease of childhood pneumonia, and atelectasis is a serious comorbidity. Traditional diagnostic methods for MPP are limited by low accuracy, emphasizing the need for improved diagnostic approaches. This study aimed to establish a predictive scoring model for early detection of MPP complicated with atelectasis following standardized treatment.

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Background: Anaphylaxis is a systemic allergic reaction that is potentially life-threatening. Occupational anaphylaxis is an anaphylaxis that occurs in an occupational context. In this position paper, we propose diagnostic criteria for occupational anaphylaxis and provide an overview of the current state of knowledge in terms of prevalence, triggers, prevention, and management.

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Prevalence and causes of subacute cough in Japan.

Respir Investig

January 2025

Department of Respiratory Medicine, Allergy and Clinical Immunology, Nagoya City University Graduate School of Medical Sciences, 1 Kawazumi Mizuho-machi, Nagoya, 467-860, Japan.

Article Synopsis
  • Subacute cough is a specific type of cough lasting 3-8 weeks and is primarily caused by cough variant asthma, atopic cough, and sinobronchial syndrome, rather than post-infectious cough as previously believed.
  • In a study involving 148 patients, 68.3% developed chronic cough, often stemming from multiple underlying conditions such as cough variant asthma combined with atopic cough.
  • The findings highlight the need for careful diagnosis and treatment of multiple causes in patients with subacute cough to prevent progression to chronic cough.
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Background: Multiple observational studies have demonstrated the health benefits of yogurt, which are considered due to yogurt's positive effects on the gut microbiota. It is also known that the intestinal microbiota is associated with cognitive and emotional functions. Although the intake of probiotics has been reported to improve neurodevelopmental symptoms in children, no large-scale studies have examined the association of yogurt consumption in early childhood with later neurodevelopmental status.

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Article Synopsis
  • Eosinophil inflammation in severe asthma often persists despite high-dose corticosteroid treatment, leading to the development of biologics targeting type 2 cytokines for corticosteroid-resistant cases.* -
  • This study investigated the direct effects of type 2 cytokines (IL-4, IL-5, IL-13, TSLP) on eosinophils from healthy individuals, measuring indicators like adhesiveness and superoxide production.* -
  • Results indicated that IL-5 significantly enhanced eosinophil functions, whereas IL-4, IL-13, and TSLP did not show such direct effects at clinical concentrations, implying limited eosinophil involvement in the action of certain biologics.*
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Article Synopsis
  • Conventional treatments for hepatocellular carcinoma (HCC) are often ineffective, prompting interest in photodynamic therapy (PDT) as a targeted alternative.
  • Researchers created black phosphorus nanosheets loaded with single-atom gold nanoenzymes to improve PDT effectiveness, enhancing stability and targeting with PEG and folate modifications.
  • The developed nanoplatform successfully targets HCC tumors, generates significant reactive oxygen species, and demonstrates improved biocompatibility and catalytic activity, making it a promising option for HCC treatment.
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Purpose: The combination therapy of leukotriene receptor antagonists and antihistamines may alleviate allergic rhinitis (AR) symptoms better than monotherapy. This study aimed to investigate the safety and efficacy of Monterizine, a fixed-dose combination of montelukast and levocetirizine, compared to montelukast monotherapy in pediatric patients with AR.

Methods: One hundred seventy-six children aged 6 to 14 years with perennial AR symptoms were recruited.

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Article Synopsis
  • Targeted therapies using biologics for atopic diseases, urticaria, and angioedema are advancing quickly, with several new antibodies developed, tested, and approved for clinical use, like omalizumab and dupilumab.
  • There is ongoing research into combining different biologics for enhanced treatment efficacy, expanding their applications to conditions like food allergies and eosinophilic esophagitis.
  • There are emerging concerns about unexpected side effects and hypersensitivity reactions associated with these therapies, raising important questions about their safety and mechanisms, particularly in specific patient groups like children.
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Allergen-specific immunotherapy (AIT) induces immune tolerance, showing the highest success rate (>95%) for insect venom while a much lower chance for pollen allergy. However, the molecular switches leading to successful durable tolerance restoration remain elusive. The primary outcome of this observational study is the comprehensive immunological cellular characterization during the AIT initiation phase, whereas the secondary outcomes are the serological and Th2-cell-type-specific transcriptomic analyses.

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We sought to prospectively evaluate whether food protein-induced allergic proctocolitis (FPIAP) during infancy is associated with increased constipation later in childhood. Using the Gastrointestinal Microbiome and Allergic Proctocolitis (GMAP) cohort, we reviewed charts of children with prospective parent-reported constipation after age 3 to confirm the diagnosis of constipation. A diagnosis of FPIAP was based on pediatrician diagnosis and required guaiac-positive or grossly bloody stools, as previously published.

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Application of Nanoparticles for Immunotherapy of Allergic Rhinitis.

Int J Nanomedicine

November 2024

Laboratory Medicine Center, Allergy Center, Department of Transfusion Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, 310014, People's Republic of China.

Article Synopsis
  • Allergen Immunotherapy (AIT) is currently the only treatment that targets the root cause of allergic rhinitis (AR), with established methods like subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) showing positive results but also side effects.
  • Innovative approaches using nanoparticles (NPs), which are tiny particles (1-100 nm), are being explored as safer and more effective delivery systems for AIT, potentially enhancing immune modulation and drug concentration.
  • The review discusses various types of nanoparticle delivery systems, such as chitosan, exosomes, metal, and viral nanoparticles, while highlighting their advantages and limitations, indicating that more research is needed to confirm their effectiveness in treating AR.
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Background: Oral food challenge tests are considered the reference standard for diagnosing food allergies; however, studies on their real-world implementation rates are limited.

Objective: The study aimed to investigate the proportion of school-age children who underwent the oral food challenge test and to understand the motivations behind food elimination and utilization of various health care services.

Methods: The questionnaire-based survey for the parents of the students who submitted the "Certificate for School Life Management (For Allergic Diseases)" was conducted across public elementary and junior high schools in Gifu prefecture, Japan.

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The twenty-first century has seen a fundamental shift in disease epidemiology with anthropogenic environmental change emerging as the likely dominant factor affecting the distribution and severity of current and future human disease. This is especially true of allergic diseases and asthma with their intimate relationship with the natural environment. Climate change-related variables including increased ambient temperature, heat waves, extreme weather events, air pollution, and rainfall distribution, all can affect asthma in children, but each of these variables also affects asthma via alterations in pollen production and release, outdoor allergen exposure or the microbiome.

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Omalizumab was recently approved by the US Food and Drug Administration for treatment of any single food allergy or multiple food allergies in children aged 1 year and older and adults. There is currently no formal guidance regarding recommended best practices for omalizumab use in food allergy, including patient selection, anticipated goals and outcomes of therapy, procedure for monitoring patients who elect to start omalizumab therapy, and ways in which omalizumab can be incorporated into the landscape of food allergy management and daily clinical practice. This work group report was developed by the food allergy therapies subcommittee of the Adverse Reactions to Foods Committee within the American Academy of Allergy, Asthma & Immunology.

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Susceptibility to inflammatory bowel diseases (IBDs), Crohn's disease (CD), and ulcerative colitis (UC) is linked with loss of intestinal epithelial barrier integrity and mitochondria dysfunction. Steroidogenic acute regulatory (StAR) protein-related lipid transfer (START) domain-containing protein 7 (STARD7) is a phosphatidylcholine-specific (PC-specific) lipid transfer protein that transports PC from the ER to the mitochondria, facilitating mitochondria membrane stabilization and respiration function. The aim of this study was to define the contribution of STARD7 in the regulation of the intestinal epithelial mitochondrial function and susceptibility to colitis.

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Cancer Cell-Derived Exosomal miR-500a-3p Modulates Hepatic Stellate Cell Activation and the Immunosuppressive Microenvironment.

Adv Sci (Weinh)

January 2025

Laboratory Medicine Center, Allergy Center, Department of Transfusion Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, 310014, China.

Article Synopsis
  • - The study investigates the role of miR-500a-3p in hepatocellular carcinoma (HCC), emphasizing its connection to liver fibrosis and cirrhosis, and how these factors influence tumor progression.
  • - Researchers analyzed clinical data and conducted experiments showing that miR-500a-3p levels are elevated in HCC and cirrhosis tissues, correlating with worse survival rates due to its effect on immune response and HCC-related cell behavior.
  • - The mechanism of action involves miR-500a-3p being delivered via exosomes, affecting the JAK3/STAT5 pathway through SOCS2, which ultimately enhances HCC growth and invasiveness.
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Asian birth cohort studies on allergic diseases: The A2BC network initiative.

Pediatr Allergy Immunol

November 2024

Department of Pediatrics, Childhood Respiratory Allergy Center, Humidifier Disinfected Health Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

The Asia Allergy Birth Cohort (A2BC) network consolidates data from multiple independently established birth cohorts across Asia to enhance research on host-environment interactions in allergic diseases. These cohorts, established at different times with various methodologies, are reliable data sources. Our aim is to introduce the content, variables, and outcomes of these cohorts while highlighting their differences, laying the groundwork for future collaborative research.

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Adherence to Healthy Prepregnancy Lifestyle and Risk of Adverse Pregnancy Outcomes: A Prospective Cohort Study.

BJOG

February 2025

Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Aichi, Japan.

Objective: To quantify the association between a combination of modifiable prepregnancy lifestyle factors and the risk of adverse pregnancy outcomes (APOs).

Design: Prospective cohort study.

Setting: The Japan Environment and Children's Study.

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In cases of moderate to severe atopic dermatitis that does not respond to topical therapy, temporary systemic administration of molecular targeted drugs (biological agents or oral Janus kinase[JAK]inhibitors) may be necessary. However, topical therapy forms the basis of the treatment for atopic dermatitis, and if topical therapy is appropriately established with long-term remission achieved, the use of molecular targeted drugs can be discontinued. In these two cases of severe adolescent atopic dermatitis, successful initiation of remission was achieved through hospitalization, disease education, skincare guidance, and the combined use of appropriate topical therapy and short-term oral JAK inhibitors during the remission induction phase.

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Background And Objective: The aim of this study was to evaluate the basic performance and accuracy as a screening test by comparing SiLIS Allergy 45+1 with View Allergy 39.

Methods: Measurements were performed with reagents and measuring instruments for View Allergy 39 and SiLIS Allergy 45+1 using blood samples of individuals with a previous history of IgE sensitizations. We compared the results between SiLIS Allergy 45+1 with View Allergy 39.

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