Thank you dear Tena ..
The following article is my follow up :
http://www.parkinson.org/NETCOMMUNIT...=458&srcid=377
"In the past decade, there has been increasing interest amongresearchers about the effects of three B vitamins - B6, B12, and folate. We now know that deficiencies occur with greater frequency than ever suspected previously, particularly in older adults. We also now know that deficiencies, if not corrected, can result in irreversible damage in some people. Some health professionals are beginning to suspect that these three vitamins may be significant factors in Parkinson's disease."