Parkinson's disease continues to puzzle physicians and biologists alike - even though it is well-established that symptoms like muscle tremors, rigidity, and immobility can all be traced back to the death of a certain type of brain cell called a dopaminergic neuron. The underlying cause of this cellular death is a complex web of interrelated genetic molecular processes as well as external factors. Now for the first time ever, researchers have published an interactive picture containing the current knowledge about the underlying genetic and molecular causes of Parkinson's disease.

Source: Putting together the pieces of the Parkinson's puzzle