There are several medical conditions, from dry skin to psoriasis, that can cause uncontrollable itching that doesn't go away. Now researchers at Washington University School of Medicine in St. Louis ...

When John (patient name changed for privacy) visited our clinic in 2019, he had been driving for five hours straight. A retired widower, John had been looking forward to relaxing in his golden years.

A mouse temporarily scratches when injected with a substance to cause itching. But mice that can't make serotonin don't scratch as much as their litter mates that do make it.

This mouse was involved in the study which identified serotonin receptor HTR7 as a key mediator of chronic itch. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...