Dopamine

Researchers have developed nerve grafts, currently being trialed as a treatment for Parkinson’s disease, that are invisible to the body’s immune system. It could mean that giving risky post-transplant anti-rejection drugs is soon a thing of the past.

A mainstay of Parkinson's disease treatment, levodopa can cause nasty side-effects with long-term use. A recent human trial found that a new drug significantly reduces these effects, representing a breakthrough milestone in Parkinson’s treatment.