Articles tagged with Allergic Reactions
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Scientists found that short-chain fatty acids produced by gut bacteria suppress allergic reactions by modulating mast cell activation and epigenetic modifications. This study provides new insights into the relationship between diet and immune system regulation, with potential applications in allergy treatment.
Scientists have created a new therapy using nanoparticles to target specific immune cells responsible for allergic responses. The approach, which combines an allergen with antibodies that selectively inhibit mast cells, has shown promising results in a mouse study, preventing allergic reactions without causing side effects.
Researchers have gained a deeper understanding of the nuanced roles of JAK inhibitors in inflammation across various cell types and tissues. The study reveals that activating JAK1 signaling has tissue-specific effects, including an unexpected immunoregulatory role in lung sensory neurons, which suppresses lung inflammation.
A monoclonal antibody treatment increased food-allergic children and adolescents' tolerance to common foods, reducing allergic reactions. Omalizumab, approved for other indications, is being reviewed for a new indication based on the trial's interim analysis.
The new guidelines offer evidence-based recommendations for diagnosing and managing anaphylaxis and atopic dermatitis in pediatric and adult patients. The guidelines emphasize the importance of patient values and preferences in arriving at optimal recommendations, reflecting advancements in diversity, equity, and inclusion.
Two cases report flaxseed as an allergen causing severe reactions, including facial rashes and contact dermatitis. Flaxseed is increasingly used in baked goods, cereals, and oil paints, highlighting the need for awareness about its potential to trigger allergic reactions.
A recent study assessed ChatGPT's accuracy in identifying common allergy myths. The AI model correctly identified myths as true or false with an overall accuracy rate of 91%, with some myths being more accurate than others.
A new study finds that people with antibodies to common foods like dairy and peanuts are at a higher risk of cardiovascular-related death. The research suggests that these subtle immune responses may lead to inflammation and contribute to heart disease over time.
A new study presents a nationwide survey of children and adults with food allergies, revealing common themes around when their allergy developed and coinciding events. The research suggests that eating too much of an allergenic food or genetics may be contributing factors to adult-onset food allergies.
A new study presents evidence that children with private insurance are more likely to outgrow food allergies compared to those with public insurance. Milk and egg allergy were the most frequently outgrown allergies in the cohort of 188 children studied, with a mean age at which food was outgrown being 5 years.
Researchers have successfully used a specially formulated toothpaste for Oral Mucosal Immunotherapy (OMIT) to desensitize adults with peanut allergies. The study showed that 100% of participants consistently tolerated the highest dose without severe reactions, and 97% adhered to treatment.
The Allergist's Foundation awards grants to support innovative projects addressing health disparities in underserved communities. Six grantees presented their work at the ACAAI National Scientific Meeting, focusing on topics such as cannabis education, food allergy management, and asthma-related outcomes.
Scientists at the University of Würzburg have observed a new behavior of regulatory T cells, which remain in certain lymph nodes for months and function as local memory banks of the immune system. This discovery could lead to therapeutic applications in allergies and autoimmune diseases.
Researchers at UCSF found a feedback loop between immune protein IL-31 and nerve cells, which dials back nearby inflammation and promotes skin healing. This discovery could lead to new treatments for conditions like eczema, allergies, and asthma by targeting the nervous system's role in regulating the immune response.
Researchers from Karolinska Institutet challenge the hygiene hypothesis by showing that mice with high infectious exposures have a similar ability to develop allergic immune responses as laboratory mice. Despite this, they developed strong signs of pathological inflammation and allergic responses when exposed to allergens.
Researchers at Ann & Robert H. Lurie Children's Hospital of Chicago found a genetic biomarker that correlates with increased prevalence of anaphylaxis or severe reaction to food in patients with food allergies. The presence of α-tryptase, encoded by the TPSAB1 gene, is associated with more severe symptoms.
Babies with more mature gut microbiota at one year old are less likely to develop allergy-related wheeze or asthma. The study, which followed 1074 babies from birth to four years old, found that increased maturity of the gut microbiota was associated with a lower risk of these conditions.
A recent case study highlights the challenges faced by families seeking venom immunotherapy for fire ant allergies, particularly in low-income communities. Despite proven safety and effectiveness of treatment, access remains a significant issue due to transportation barriers, lack of childcare, and work constraints.
A new study has found that children raised in rural areas with plenty of outdoor time and animal exposure develop better-regulated immune systems than urban counterparts. Early life immune development is highly dependent on living environment and lifestyle factors, and researchers say this can have long-term consequences for disease risk.
Researchers found that all 22 babies achieved a reduced sensitivity to peanuts after completing the treatment. After an oral food challenge, 91% of them could tolerate peanuts without triggering any allergic reactions.
A new study found that babies with food allergies are more likely to develop asthma and have reduced lung function by six years of age. Early life food allergy was associated with an increased risk of both conditions, even if the allergy resolved or persisted.
A new study from Northwestern University found that only 13% of US parents and caregivers are aware of the 2017 NIH guidelines recommending early peanut introduction to prevent peanut allergy. Despite this, more work is needed to educate families and clinicians about the guidelines.
Researchers at Yale University have discovered that the immune system plays a crucial role in changing behavior in response to allergens and toxins. By manipulating immune system variables, scientists were able to alter the behavior of sensitized mice, demonstrating the importance of immune recognition in controlling defensive behaviors.
Researchers found that mast cells act as sensors to avoid allergens in mice, protecting against health-threatening inflammatory reactions. The study suggests that both mast cells and IgE are necessary for antigen avoidance.
A new study found that food allergy affects all racial and ethnic groups, but is most prevalent among Hispanic, non-Hispanic Black, and Asian individuals. Food allergy rates are also lower in households with higher incomes.
Scientists have developed a method to create less-allergenic shrimp by altering protein structures, reducing inflammation, and preventing antibody binding. The technique, known as reverse-pressure sterilization, was tested on mice with shrimp allergies and showed promising results.
Researchers found that IL-6 signaling in allergen-specific T cells was needed to suppress commitment to the harmful Th2 lineage. SOCS3 upregulation by IL-6 inhibits JAK/STAT internal signaling pathway, preventing Th2 cell priming.
Researchers at California NanoSystems Institute have developed a nanoparticle that delivers mRNA to specific cells in the liver, teaching the body's natural defenses to tolerate peanut proteins. The study found that the nanoparticle not only reversed existing peanut allergies but also prevented them from developing in mice.
Research published in Annals of the Rheumatic Diseases found that people with atopic diseases like asthma or eczema are at a heightened risk of developing osteoarthritis. Drugs used to dampen down allergic reactions may help lessen this risk, suggesting a potential new approach to treating the condition.
Researchers from Japan create a new model for estimating transepidermal water loss, providing a more realistic picture of skin water loss. The new method uses confocal laser microscopy and Raman spectroscopy to measure stratum corneum thickness and water content.
Researchers at Duke University Medical Center identified the nervous system as a key player in anaphylaxis reactions, which cause sudden drops in body temperature and blood pressure. The study suggests new targets for therapies to prevent or treat severe allergic shock.
Scientists investigated whether patients allergic to legumes are also at risk from meat-free proteins made of other legumes. While most people won't experience a reaction, nearly all patients with bean allergies were sensitized to other legumes, and nearly a quarter of patients were sensitized to all legumes.
Scientists at Indiana University School of Medicine have developed a new treatment that blocks anaphylaxis caused by peanut allergies, potentially saving lives. The covalent heterobivalent inhibitor (cHBI) was tested in animal models and showed promise in preventing allergic reactions for over two weeks.
Researchers at the University of Notre Dame have successfully developed an allergen-specific inhibitor that prevents peanut allergic reactions in mice. The inhibitor effectively masks the immune system's ability to recognize the allergen, allowing it to fly under the radar without initiating a dangerous response.
Researchers developed a new method for measuring indoor air quality using transgenic nematode strains that produce fluorescence when exposed to harmful pollutants. The amount of fluorescence can be measured and used to detect various impurities in the air, including fungal samples, surfactants, and volatile compounds.
A clinical trial found that boiling peanuts for up to 12 hours can desensitize children with peanut allergies. The therapy involved sequential doses of boiled and roasted peanuts, achieving high success rates in participants. While promising, the study's findings require confirmation in larger trials.
A review suggests that inorganic nanoparticles can cross the placental barrier and enter breastmilk, potentially predisposing babies to food allergies. The study highlights the need for further research on the impact of nanoparticle exposure on children's health during a critical window of susceptibility.
A collaborative research team led by Dr Philip Li from HKUMed has pioneered a new nurse-led penicillin allergy triage and testing strategy, which demonstrated its effectiveness and safety compared to traditional allergy testing. The study found that 90% of penicillin allergy labels in Hong Kong are incorrect, leading to potential letha...
A new study reveals that only half of food allergic adult patients have immediate access to epinephrine, and 36% believe EAIs can cause life-threatening effects. The top reported reason for not having an EAI is lack of education on their necessity.
Researchers found histamine releases HMGB1 in vascular endothelial cells, leading to severe symptoms. Administering anti-HMGB1 antibody attenuated hypotension and improved recovery rates.
New research reveals that human gut bacteria use plant N-glycans as nutrients, enabling better management of good gut health. The discovery has biotechnological applications, such as reducing allergenic responses to food and medicine.
Researchers create polymeric micelles that deliver butyrate, a compound produced by healthy gut bacteria, to restore the gut's protective barrier and microbiome. The treatment prevents life-threatening anaphylactic responses in mice with peanut allergies.
Guidelines for diagnosing and managing Pollen Food Syndrome (PFS) have been developed to distinguish it from primary allergies and manage dietary restrictions. The guideline highlights the need for more research on health-related quality of life and novel treatments, including food immunotherapy.
A study by Japanese researchers from Fujita Health University sheds light on the molecular mechanisms of contact dermatitis, revealing that neutrophil extracellular traps play a key role in the condition. The team's findings suggest that inhibiting NET formation could be a new therapeutic strategy for treating contact dermatitis.
A new study reveals that certain food proteins can cause white blood cells to become dysfunctional, leading to immune intolerance. Researchers found that the gut-associated-lymphoid tissue is a suppressive environment where lymphocytes undergo arrested development, preventing dangerous immune reactions to food.
Pollen from ragweed plants in different regions exhibits varying levels of aggression, influencing allergic reactions. Climate change is projected to increase ragweed allergy cases to 77 million by 2060.
Researchers at the Garvan Institute of Medical Research have identified key molecules linked to the mammalian-meat allergy caused by tick bites. The study reveals that a particular antibody type has a natural pocket into which a sugar molecule, galactose-α-1,3-galactose (alpha-gal), snugly fits.
Scientists at Indiana University School of Medicine discovered differences in FOXP3 isoforms controlling Treg cells and their impact on the immune system. These findings may lead to new treatments for autoimmune diseases and allergies.
A new study published in the Journal of Allergy and Clinical Immunology: In Practice found that infants under 12 months who undergo oral immunotherapy have a better safety profile compared to older preschoolers. The treatment, which involves gradually increasing exposure to peanut flour, is highly effective and safe for this age group.
A team of researchers at the University of Texas at Austin has developed a new therapeutic that uses transmembrane stem cell factor to treat ischemia and stroke without causing allergic reactions. The therapeutic, delivered in engineered lipid nanocarriers, shows promise in enhancing revascularization in ischemic tissues.
Researchers at the Messerli Research Institute developed a lozenge that compensates for micronutrient deficiencies in immune cells, reducing inflammation and allergic reactions. The study showed a 45% reduction in symptom burden during peak pollen season, presenting a new approach to allergy care.
A recent study published by the Murdoch Children's Research Institute found no significant association between caesarean birth and the development of food allergies in infants. The research involved over 2,000 infants and suggested that babies born via caesarean delivery are not at a higher risk of developing food allergies.
Patients with a reported penicillin allergy have higher rates of dental implant failure. Alternative antibiotics prescribed during surgery also linked to increased failure rates. The study suggests that testing for actual allergies may improve outcomes.
Researchers have identified formononetin as a potential therapeutic for treating food allergies, which affect nearly 10% of the world population. The plant compound has been shown to decrease IgE production and influence gene and protein targets regulated in food allergy and mast cell diseases.
A Rutgers analysis of Medicare database found that two IV iron formulations have a much higher chance of provoking severe allergic attacks. The risk was highest for iron dextran and ferumoxytol, with rates three to eight times higher than ferric gluconate.
Researchers verified the cause of allergic disorders by identifying plasma B cells secreting E-type immunoglobulin in the thymus of mice models. The study found that thymus-derived E-type immunoglobulin promotes food-induced anaphylactic reactions by increasing mast cell numbers in the intestine.
The Wilderness Medical Society has published evidence-based guidelines for anaphylaxis treatment in remote areas. The guidelines recommend administering intramuscular epinephrine as the primary prehospital treatment, while also discussing prevention strategies such as extracting additional epinephrine from autoinjectors and using expir...
The NIH is conducting a clinical trial to investigate rare but serious systemic allergic reactions to COVID-19 mRNA vaccines. Participants will receive a second dose of vaccine under controlled conditions to determine safe dosing, while breathing tests and blood draws monitor their response. The study aims to provide insights into mech...
Researchers found an association between a specific HLA-DPB1 gene variant and poor response to sublingual immunotherapy (SLIT) for Japanese cedar pollinosis. The study suggests that genotyping the HLA-DPB1 gene could help predict patient responsiveness to SLIT.
Researchers developed a microneedle treatment that increased desensitization rates to peanut allergy in mice, outperforming existing immunotherapy methods. The novel approach achieved significant results using lower doses of allergen, offering new hope for millions suffering from peanut allergy.