Eosinophilia News and Research

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Eosinophils are a type of blood cells which helps to fight off certain infections and participates in the body’s immune reactions. Eosinophilia is a condition in which the peripheral blood contains an excessive number of eosinophils, more than 500/µL. It may be classified into mild (500-1500/µL); moderate (1500-5000/µL); and severe (over 5000/µL) eosinophilia.

Genetic marker links popular seizure drug to life-threatening reaction

A genetic marker already used to flag risk of a life-threatening reaction to the antibiotic vancomycin also identifies patients at risk of that reaction to lamotrigine - and it is missing from the gene panels clinicians order before prescribing the drug, Vanderbilt Health-led researchers report Sept. 2 in JAMA Network Open.

2 Sep 2026

Early RSV infection turns maternal allergy into a powerful driver of childhood asthma

Early-life RSV infection and parental allergy interact to substantially increase childhood asthma risk, supported by population data from more than 1.5 million children and mechanistic mouse experiments. The study shows that viral infection reprograms neonatal immune responses by altering how maternally transferred allergen-specific antibodies are handled, driving long-term allergic airway disease.

8 Dec 2025

New genetic marker may improve the ability to predict life-threatening reactions to gout medication

A newly identified genetic marker may significantly improve the ability to predict life-threatening reactions to the gout medication allopurinol in U.S. patients.

29 Oct 2025

Researchers uncover possible immune link to chronic pain

University of Arizona researchers may have uncovered a connection between chronic pain and a somewhat uncommon immune condition, opening the door to future research on immune biomarkers for chronic pain.

9 Oct 2025

Why zinc may be the missing nutrient in childhood asthma care

The role of zinc in childhood asthma is critical; deficiency may worsen symptoms, while supplementation could provide a safe, effective treatment alternative.

19 Aug 2025

Best time for asthma meds? Try 4 pm

Chronotherapy for asthma reveals that afternoon inhaled corticosteroids significantly improve lung function and reduce nighttime symptoms without side effects.

17 Apr 2025

Novel ARPC1B mutation identified in a patient with recurrent eosinophilia

Immunodeficiency disorders linked to cytoskeleton defects are rare and complex, often presenting with diverse clinical features.

1 Apr 2025

Advancements in molecular diagnostics for hematopoietic and lymphocytic neoplasms

Hematopoietic and lymphocytic neoplasms (HLNs) are a diverse group of malignancies affecting blood and lymphatic systems, with outcomes varying from manageable conditions to fatal diseases.

27 Feb 2025

Granzyme K+ CD8+ T-cells identified as key drivers of recurrent airway inflammation

Researchers identify a pathogenic subset of CD8+ memory T-cells that promote airway tissue inflammation and recurrent respiratory diseases.

17 Jan 2025

Researchers uncover the potential of JAK inhibitors to treat life-threatening skin disease

Researchers identified Janus kinase inhibitors as a promising treatment for the severe drug-induced skin condition toxic epidermal necrolysis, by analyzing patient biopsies with deep visual proteomics.

17 Oct 2024

Estrogen found to promote tumor growth in breast cancers without receptors

Estrogens are known to drive tumor growth in breast cancer cells that carry its receptors, but a new study by Duke Cancer Institute researchers unexpectedly finds that estrogens play a role in fueling the growth of breast cancers without the receptors, as well as numerous other cancers.

27 Sep 2024

Single infusion of engineered T-cells achieves lasting asthma remission in mice

Researchers demostrate that durable asthma remission can be achieved with engineered and long-lived CAR T-cell treatment in mice.

31 May 2024

New Alzheimer's drug LM11A-31 shows promise in slowing disease progression in clinical trial

A recent study in Nature Medicine found that LM11A-31, targeting the p75 neurotrophin receptor, is safe and shows promise in slowing Alzheimer's disease progression. The trial indicated significant biomarker improvements and potential benefits for further clinical investigation.

28 May 2024

Research aims to better understand the origin of eosinophils

Eosinophils are specialized cells of our immune system. They are identified by their distinctive granules that stain red when treated with an acidic reagent, eosin, which gave them their name.

22 May 2024

Rapid test could determine the existence of a key driver of severe asthma

Based on decades of work to uncover the underlying mechanisms of asthma and other respiratory conditions, researchers at McMaster University and St. Joseph's Healthcare Hamilton have produced a simple, rapid test that can identify the presence of a key driver of severe asthma.

2 Aug 2023

Dietary inulin fiber can promote allergy-related type of inflammation in the gut and lungs

A type of dietary fiber called inulin, commonly used in health supplements and known to have certain anti-inflammatory properties, can also promote an allergy-related type of inflammation in the lung and gut, and other parts of the body, according to a preclinical study from researchers in the Friedman Center for Nutrition and Inflammation and Jill Roberts Institute for Inflammatory Bowel Disease at Weill Cornell Medicine and in the Boyce Thompson Institute on Cornell's Ithaca campus.

2 Nov 2022

How does obesity affect the immune system?

A new study summarizes new findings on the immunoregulatory effects of excessive fat stores or malnutrition through Th2 cells.

4 Jul 2022

A comparison of SARS-CoV-2 and influenza cytokine storms

In a recent study published in the Journal of Interferon & Cytokine Research, researchers compared the cytokine storms of pandemic influenza and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections.

9 Jun 2022

Measuring airway inflammation when diagnosing and treating asthma patients

In this interview, Carol Stonham, the head of a Locality Based FeNO referral service, talks to NewsMed about measuring airway inflammation when diagnosing and treating asthma patients.

From Bedfont® Scientific Ltd 21 Dec 2021

A nematode infection can become severe and deadly with the use of corticosteroids

Healthcare workers in tropical and sub-tropical settings where strongyloidiasis is prevalent or caring for patients who have travelled to such areas, need to maintain a high level of awareness about the use of corticosteroids, including when this class of anti-inflammatories is given to patients suspected of infection with SARS-CoV-2.

19 Dec 2021