The following are PK news sites, the first being information about nicotine. Very interesting stuff. At the second site is the index, and it will take you to a wide variety of information, including another short article about smoking as neuroprotective. If I were going to try nicotine I don't think I'd go back to smoking which I gave up 15 years ago, but am looking at other ideas with an open mind. Chuck http://www.parkinsonsdisease.com/news/NEWS001.HTM http://www.parkinsonsdisease.com/news/N101_arc.HTM