Parkinson’s disease, renowned for its debilitating effects on movement, has always been intrinsically linked to the diminishment of dopamine, a chemical imperative for motor functions. However, a groundbreaking study by the University of Montreal divulges surprising revelations about the resilience of brain’s movement circuits even with a conspicuous deficiency in dopamine during the asymptomatic phases of Parkinson’s. This groundbreaking research, led by esteemed neuroscientist Louis-Éric Trude
So, if I understand correctly, the loss of motoric functions in Parkinson’s is thought to be caused by the loss of dopamin in the brain. However, motoric functions remain normal if there’s even just a little dopamin left in the system, which is surprising.