Diabetes drug may prevent Parkinson's

A class of drugs used to treat Type 2 diabetes may offer protection against Parkinson's disease, research suggests.

Patients with diabetes taking glitazone drugs had a 28% lower incidence of Parkinson's disease than those who had never received the treatments, the study found.

The two medicines studied were rosiglitazone and pioglitazone which activate a biological pathway that reduces insulin