For many patients with diverse and seemingly unrelated symptoms, obtaining an accurate diagnosis can take years of specialist visits and inconclusive tests. Mast cell activation syndrome, a disorder ...

This scanning electron microscopy image captures the moment where degranulating mast cells (pseudo-colored in sepia) attract and start to incorporate living neutrophils (pseudo-colored in cyan), ...

In early 2020, Wynde Dyer walked into the house that would transform her life. The Central California ranch sat on a cul-de-sac of gated homes and glittering aquamarine pools. It boasted private ...

As allergy season begins, millions of Americans are bracing for the return of sneezing, itchy eyes, and runny noses. At the heart of these symptoms is a powerful—but often overlooked—player in the ...

Food allergies affect more than half a billion people worldwide. In severe cases, even a small bite of the wrong food can trigger anaphylaxis - a rapid, body-wide allergic reaction that can cause ...

Depending on one's perspective, "mast cell activation syndrome (MCAS)" is either a relatively rare, narrowly defined severe allergic condition or a vastly under-recognized underlying cause of multiple ...