Tel Aviv, March 5 -- Israeli scientists established a crucial connection between Parkinson's disease and a network of molecules surrounding the brain, opening new avenues of research to better understand the disorder and develop targeted therapies.

Parkinson's disease is a progressive neurodegenerative disorder that primarily affects movement. It develops gradually, often starting with mild tremors in one hand. As the disease progresses, movement symptoms can worsen and may include stiffness, slowness of movement, and difficulty with balance and coordination. Other symptoms may include changes in speech, writing, and facial expressions, as well as cognitive impairments, mood changes, and sleep disturbances.

The exact cause of Parkinson'...