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  Studies Find Parkinson's Disease Also Effects Transplanted Tissue

   
April 6 2008 - Results of 2 new studies released today find that transplanting 
stem cells into patients with Parkinson's disease does not help to treat the 
condition
 April 6 2008 - Results of 2 new studies released today find that 
transplanting stem cells into patients with Parkinson's disease does not help 
to treat the condition.
Parkinson's disease is a disease that attacks the central nervous system. 
There is currently no cure for it. It is caused by a significant loss of 
dopamine, which is responsible for helping to direct movement in the body.
One study was performed by a group of researchers from the Wallenberg 
Neuroscience Center in Lund, Sweden, and one from Rush University Medical 
Center in Chicago. 
In the Swedish study 2 participants with Parkinson's had fetal nerve tissue 
grafted to their brains. Researchers noted that over time, their disease 
started to effect the new tissue in a negative way.
``Our results suggest that grafted cells can be affected by the disease 
process and thereby might limit the long-term clinical benefit of these 
treatment approaches,'' according to the authors of the Rush University 
study. ``It is unclear whether a similar fate would befall stem cell grafts, 
the next generation of cell replacement procedures.''
In the Rush University study, researchers noted that after the grafting was 
complete, generally the symptoms associated with Parkinson's disease 
diminished resulting in fewer doses of medicine needing to be administered.
According to the National Parkinson Foundation, people usually begin to 
exhibit symptoms of the condition when they reach 60 years of age and up. 
Usually 1 out of 100 people who exhibit symptoms of the disease actually have 
it.

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