Hypersensitivity News and Research

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Hypersensitivity is an exaggerated response by the immune system to a drug or other substance.

Aspirin therapy does not help people suffering from chronic rhinosinusitis with nasal polyps

A randomized placebo-controlled Finnish study showed that aspirin therapy does not provide significant relief for people suffering from chronic rhinosinusitis with nasal polyps who are hypersensitive to non-steroidal anti-inflammatory drugs (NSAIDs).

8 Sep 2025

Research reveals molecular details of ME/CFS and long COVID

Patients with chronic fatigue syndrome/myalgic encephalomyelitis (ME/CFS) have heightened innate immune responses to bacteria, viruses, and fungi. While these responses are essential to fight infection, they can cause damage when unchecked.

1 Sep 2025

Stress in mothers causes eczema in newborn mice through immune cell changes

Maternal prenatal stress in mice disrupts fetal mast cell programming, triggering eczema-like skin inflammation and heightened sensitivity after birth. The findings reveal how corticosterone-driven immune and neuronal changes in utero may set the stage for pediatric eczema risk.

28 Aug 2025

Transcutaneous vagal nerve stimulation shows promise for gastrointestinal disorders

Imbalanced autonomic function, characterized by reduced vagal activity and sympathetic dominance, is increasingly recognized in various gastrointestinal (GI) disorders.

27 Aug 2025

New study expands the list of foods causing anaphylaxis

The European Regulation list on mandatory labelling of foods includes 14 allergenic foods. Research published in Clinical & Experimental Allergy has identified eight additional foods frequently involved in food-induced anaphylaxis.

21 Aug 2025

Genetic variants influencing vitamin D synthesis, metabolism, and transport

A Canadian review synthesizes genetic factors that influence vitamin D synthesis, metabolism, and transport, highlighting how polymorphisms affect circulating levels. It also explores how gene-environment interactions shape individual responses to supplementation and sunlight.

20 Aug 2025

Low FODMAP diet increases GLP-1 and relieves IBS symptoms

This study reveals that a low FODMAP diet alleviates IBS symptoms and increases GLP-1 levels, suggesting new avenues for dietary interventions in gut health.

20 Aug 2025

Gene editing restores hearing and balance in adult mice with DFNA41 deafness

Zheng-Yi Chen, DPhil, associate scientist at the Eaton-Peabody Laboratories, and Ines and Fredrick Yeatts Chair in Otolaryngology, at Mass Eye and Ear, is the senior and co-corresponding author of a paper published in the Journal of Clinical Investigation, "Single Dose Genome Editing Therapy Rescues Auditory and Vestibular Functions in Adult Mice with DFNA41 Deafness."

14 Aug 2025

Targeted botox delivery shows promise for treating jaw disorder

Temporomandibular disorder (TMD) limits jaw function and is so painful that it lessens the quality of life.

4 Aug 2025

Overuse injuries spark lasting pain and mood changes through inflammation, rat study finds

Repetitive reaching tasks in mature female rats triggered persistent pain-like and sickness behaviors linked to a surge in IL-6-driven inflammation throughout muscles, blood, and the brain. These findings reveal how overuse injuries provoke both physical and mood-related symptoms through a neuroimmune cascade.

20 Jul 2025

Sound stress alone induces pain sensitivity and brain inflammation

Pain is an important physiological response in living organisms. While physical pain is an outcome of tissue damage, pain can manifest as diverse unpleasant sensory and emotional experiences. Many studies report that emotional or psychological stress enhances pain responses.

18 Jul 2025

Nasal antibody spray shields mice from pollen-triggered allergies and asthma

Intranasal delivery of a monoclonal IgG1 antibody targeting mugwort pollen protected mice from allergic rhinitis and asthma symptoms, without lowering systemic IgE levels. This localized, non-invasive approach dampened Th2 inflammation and preserved healthy airway tissue in sensitized mice.

14 Jul 2025

Circadian misalignment in the blind may impact daily brain functions

This study investigates how blindness affects sleep, dreams, and spatial awareness, revealing links between circadian rhythms and cognitive performance.

7 Jul 2025

Sleep does not block brain response to screams and alarms

During sleep, the brain must achieve a delicate balance: disconnecting from sensory input to allow restorative functions, while remaining alert enough to wake if danger arises.

26 Jun 2025

Estrogen-responsive cells found to heighten gut pain in females

Researchers uncovered how estrogen heightens gut sensitivity in females by activating PYY-secreting L-cells, which stimulate serotonin release from EC cells. This paracrine circuit intensifies pain signaling and may explain the sex bias in conditions like IBS.

16 Jun 2025

Understanding cow’s milk allergy in breastfed infants

Cow’s milk allergy (CMA) affects up to 2.2% of infants, with a complex interplay of immunological mechanisms, allergen transfer via breast milk, and variable responses to maternal elimination diets. Current evidence challenges the routine use of maternal dietary restrictions, highlighting the need for precise diagnosis and further research.

27 May 2025

NIH study reveals how inflammation affects pain perception

Researchers uncover the cellular and molecular basis for sensing heat and inflammatory pain.

24 Apr 2025

Study links cold hypersensitivity and heaviness in legs to varicose veins

Hypersensitivity to the cold, especially ice cold feet, as well as a feeling of heaviness in the legs, are linked to the presence of varicose veins, finds a large study published in the open access journal Open Heart.

16 Apr 2025

Probiotics improve emotional state in healthy adults, study finds

A randomized controlled trial in 88 healthy adults found that probiotics reduced negative mood when assessed using daily self-reports, though traditional questionnaires failed to detect significant changes. These findings suggest that daily mood tracking may offer a more sensitive way to capture subtle emotional effects of probiotics in non-clinical populations.

10 Apr 2025

Scientists link emulsifiers in processed foods to allergy and immune disorders

Review identifies common food additives in ultra-processed foods—particularly emulsifiers like carrageenan and polysorbate 80—as key drivers of gut dysbiosis, inflammation, and allergic diseases by disrupting intestinal barriers and activating proinflammatory pathways.

26 Mar 2025