This article is important because it is from the neurology department of University of Wisconsin medical school and written by respected physicians. Their conclusion is that the functional recovery of animals with PD who got laser and light treatments showed significant improvements. There were improvements in brain chemistry, brain tissue and also an obvious delayed disease progression. Their conclusion was that the research shows the potential of laser and LED treatments to help Parkinson's disease. Because this is such a tough disease to treat, this article is important and follows other studies out of Harvard Medical School that show improvements in brain function and structure after low level laser treatments.
Front Biosci. 2012 Jan 1;4:818-23.