Serotonin reduction in post-acute sequelae of viral infection

We collaborated with researchers at the University of Pennsylvania who investigated the level of certain blood proteins in 58 people with Long COVID. Compared to those who completely recovered from COVID-19, researchers found a significant reduction in levels of the neurotransmitter serotonin in people with Long COVID. Serotonin is a molecule that regulates communication between brain cells and has important roles in our mood, sleep, and cognitive function. Researchers conclude that this reduction in serotonin could be contributing to certain neurological and cognitive symptoms that are associated with Long COVID.