Many people faced with chronic itching. According to scientists, "spontaneous scabies" is found in every fifth inhabitant of the planet. Causeless feeling of burning, irritation may be caused not only by these diseases. Experts from the USA have found serotonin receptor HTR7 responsible for these sensations.
Scientists conducted an experiment on mice. Was found that animals with a large number of HTR7 receptors suffered from itching stronger. During the suppression of the activity patterns itching decreased repeatedly.
Scabies may develop because of kidney disease, liver disease, taking antidepressants. In another experiment, the scientists injected mice with sertraline, a typical antidepressant. In the study of HTR7 showed an increase in its activity. By blocking the receptor itching was gone.