670 results match your criteria: "Swiss Institute of Allergy and Asthma Research SIAF[Affiliation]"

Dupilumab treatment decreases MBC2s, correlating with reduced IgE levels in pediatric atopic dermatitis.

J Allergy Clin Immunol

November 2024

Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland. Electronic address:

Background: A preference for type 2 immunity plays a central role in the pathogenesis of atopic dermatitis (AD). Dupilumab, an mAb targeting the IL-4 receptor α (IL-4Rα) subunit, inhibits IL-4 and IL-13 signaling. These cytokines contribute significantly to IgE class switch recombination in B cells, critical in atopic diseases.

View Article and Find Full Text PDF

Background: During the COVID-19 pandemic, novel nanoparticle-based mRNA vaccines were developed. A small number of individuals developed allergic reactions to these vaccines although the mechanisms remain undefined.

Methods: To understand COVID-19 vaccine-mediated allergic reactions, we enrolled 19 participants who developed allergic events within 2 h of vaccination and 13 controls, nonreactors.

View Article and Find Full Text PDF

Exposure to toxic substances, introduced into our daily lives during industrialization and modernization, can disrupt the epithelial barriers in the skin, respiratory, and gastrointestinal systems, leading to microbial dysbiosis and inflammation. Athletes and physically active individuals are at increased risk of exposure to agents that damage the epithelial barriers and microbiome, and their extreme physical exercise exerts stress on many organs, resulting in tissue damage and inflammation. Epithelial barrier-damaging substances include surfactants and enzymes in cleaning products, laundry and dishwasher detergents, chlorine in swimming pools, microplastics, air pollutants such as ozone, particulate matter, and diesel exhaust.

View Article and Find Full Text PDF

Background: Antigen-specific memory B cells play a key role in the induction of desensitization and remission to food allergens in oral immunotherapy and in the development of natural tolerance (NT). Here, we characterized milk allergen Bos d 9-specific B cells in oral allergen-specific immunotherapy (OIT) and in children spontaneously outgrowing cow's milk allergy (CMA) due to NT.

Methods: Samples from children with CMA who received oral OIT (before, during, and after), children who naturally outgrew CMA (NT), and healthy individuals were received from Stanford biobank.

View Article and Find Full Text PDF

Introduction: Equine asthma (EA) is a common lower airway disease in horses, but whether its pathogenesis is allergic is ambiguous. Extrinsic stimuli like hay dust induce acute exacerbation of clinical signs and sustained local neutrophilic inflammation in susceptible horses. is an EA stimulus, but it is unclear if it merely acts as an IgE-provoking allergen.

View Article and Find Full Text PDF

IL-37 protects against house dust mite-induced airway inflammation and airway epithelial barrier dysfunction via inhibiting store-operated calcium entry.

Int Immunopharmacol

September 2024

Department of Allergology, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Allergy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China. Electronic address:

Background: Airway epithelial barrier dysfunction has been proved to contribute to the development of type 2 inflammation of asthma. Interleukin (IL)-37 is a negative regulator of immune responses and allergic airway inflammation. However, whether IL-37 has any effect on airway epithelial barrier has been unknown.

View Article and Find Full Text PDF

Wheezing children infected with rhinovirus (RV) have a markedly increased risk of subsequently developing recurrencies and asthma. No previous studies have assessed the association between cytokine response and the severity of acute illness in the first wheezing episode in children infected with RV. Forty-seven children treated both as inpatients and as outpatients infected with RV only, aged 3-23 months, with severe first wheezing episodes were recruited.

View Article and Find Full Text PDF

Background: Milk oral immunotherapy is the riskiest and most unpredictable form of oral immunotherapy. We aimed to produce a low allergenic product than conventional once baked-cake/muffin, to develop indirect in-house ELISA to check the tolerance status with milk products and evaluate IgE reactivity of patients' sera via western blotting (WB) and indirect in-house ELISA.

Method: A low allergenic product named biscotti-twice baked-cake was developed, and the total protein concentration was determined.

View Article and Find Full Text PDF

Lifestyle Changes and Industrialization in the Development of Allergic Diseases.

Curr Allergy Asthma Rep

July 2024

Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland.

Purpose Of Review: Modernization and Westernization in industrialized and developing nations is associated with a substantial increase in chronic noncommunicable diseases. This transformation has far-reaching effects on lifestyles, impacting areas such as economics, politics, social life, and culture, all of which, in turn, have diverse influences on public health. Loss of contact with nature, alternations in the microbiota, processed food consumption, exposure to environmental pollutants including chemicals, increased stress and decreased physical activity jointly result in increases in the frequency of inflammatory disorders including allergies and many autoimmune and neuropsychiatric diseases.

View Article and Find Full Text PDF

Maintenance of astronaut health during spaceflight will require monitoring and potentially modulating their microbiomes. However, documenting microbial shifts during spaceflight has been difficult due to mission constraints that lead to limited sampling and profiling. Here we executed a six-month longitudinal study to quantify the high-resolution human microbiome response to three days in orbit for four individuals.

View Article and Find Full Text PDF

A second space age spanning omics, platforms and medicine across orbits.

Nature

August 2024

Blue Marble Space Institute of Science, Space Biosciences Division, NASA Ames Research Center, Moffett Field, CA, USA.

The recent acceleration of commercial, private and multi-national spaceflight has created an unprecedented level of activity in low Earth orbit, concomitant with the largest-ever number of crewed missions entering space and preparations for exploration-class (lasting longer than one year) missions. Such rapid advancement into space from many new companies, countries and space-related entities has enabled a 'second space age'. This era is also poised to leverage, for the first time, modern tools and methods of molecular biology and precision medicine, thus enabling precision aerospace medicine for the crews.

View Article and Find Full Text PDF
Article Synopsis
  • - The European Academy of Allergy and Clinical Immunology analyzed systematic reviews using GRADE to assess the effects of environmental tobacco smoke (ETS) and active smoking on asthma-related issues, focusing primarily on longitudinal studies.
  • - Prenatal and postnatal ETS are linked to an increased risk of recurrent wheezing and new-onset asthma, with moderate to low certainty evidence indicating that combined ETS exposure heightens these risks.
  • - Active smoking is associated with severe asthma exacerbations and poor asthma control, also backed by moderate certainty evidence, alongside potential impacts on quality of life and lung function.
View Article and Find Full Text PDF
Article Synopsis
  • - Accessing the genetic diversity of species uncovers hidden traits and helps clarify gene functions, especially in natural isolates of Saccharomyces cerevisiae, where around 20% exhibit aneuploidy, which is contradicted by laboratory findings showing its fitness costs.
  • - The research generates a proteomic resource for 796 euploid and aneuploid isolates, revealing that natural aneuploids have better protein dosage compensation compared to lab-generated ones, where many protein subunits show reduced expression.
  • - Findings indicate that natural aneuploidy involves enhanced protein turnover and structural changes in the proteasome, suggesting that studying natural genetic diversity can provide valuable insights into the biological mechanisms behind aneupl
View Article and Find Full Text PDF

In rhinitis and asthma, several mHealth apps have been developed but only a few have been validated. However, these apps have a high potential for improving person-centred care (PCC), especially in allergen immunotherapy (AIT). They can provide support in AIT initiation by selecting the appropriate patient and allergen shared decision-making.

View Article and Find Full Text PDF

PBX/Knotted 1 homeobox-2 (PKNOX2) is a novel regulator of myocardial fibrosis.

Signal Transduct Target Ther

April 2024

State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China.

Article Synopsis
  • Researchers improved a method for single-nucleus RNA sequencing to explore cellular diversity in healthy human hearts and better understand cardiac transcriptional regulation networks.
  • They discovered a new transcription factor called PKNOX2 in fibroblasts, which plays a crucial role in controlling fibroblast activation and preventing excessive fibrosis.
  • The study also showed that manipulating PKNOX2 levels in a heart failure mouse model led to significant changes in fibrosis, suggesting it could be a promising target for future heart-related therapies.
View Article and Find Full Text PDF
Article Synopsis
  • The EAACI Guidelines explain how being outside in polluted air can make asthma worse and give tips for preventing problems and taking care of patients.
  • They were made to help doctors, patients, and government officials make better choices about asthma management and outdoor air quality.
  • The guidelines suggest that while short-term exposure to pollution can lead to more hospital visits for asthma, there's still a need for better evidence on how to reduce pollution and improve air quality.
View Article and Find Full Text PDF
Article Synopsis
  • Guidelines for treating asthma exacerbations typically recommend bronchodilators and corticosteroids, but antibiotic use is often overlooked despite frequent prescriptions in practice.
  • A survey involving 252 healthcare professionals revealed a 19% antibiotic prescription rate for asthma exacerbations, with significant variation among different specialties like pediatrics, pulmonology, general practice, and allergy.
  • The study highlights the need for evidence-based guidelines to ensure more rational use of antibiotics in treating asthma exacerbations, especially considering factors like purulent sputum, fever, and comorbidities that influence prescription decisions.
View Article and Find Full Text PDF

Unveiling the molecular Hallmarks of Peyronie's disease: a comprehensive narrative review.

Int J Impot Res

December 2024

Department of Urology, Molinette Hospital, University of Torino, AOU Città della Salute e della Scienza di Torino, Turin, Italy.

Peyronie's disease, a fibroinflammatory disorder, detrimentally impacts the sexual well-being of men and their partners. The manifestation of fibrotic plaques within penile tissue, attributed to dysregulated fibrogenesis, is pathognomonic for this condition. The onset of fibrosis hinges on the perturbation of the equilibrium between matrix metalloproteinases (MMPs), crucial enzymes governing the extracellular matrix, and tissue inhibitors of MMPs (TIMPs).

View Article and Find Full Text PDF