The metabolite of a drug that is helping patients battle out multiple sclerosis has been found to significantly slow down the onset of Parkinson's disease say researchers including one of Indian-origin. Multiple sclerosis is a disease in which the immune system eats away the protective covering of nerves. The findings showed that dimethyl fumarate or DMF -- an oral drug and its metabolite -- monomethyl fumarate or MMF -- both increase the activity of Nrf2. Nrf2 is a protein that helps protect the body from oxidative stress and inflammation that are both hallmarks of the Parkinson's disease. Parkinson's disease destroys