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I have Parkinson's diseases and thought it would be nice to have a place where the contents of updated news is found in one place. That is why I began this blog.

I copy news articles pertaining to research, news and information for Parkinson's disease, Dementia, the Brain, Depression and Parkinson's with Dystonia. I also post about Fundraising for Parkinson's disease and events. I try to be up-to-date as possible.

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Saturday, March 25, 2017


March 19, 2017

Late-stage Parkinson's Disease is dominated by the loss of autonomy due to motor and non-motor symptoms which can be marginally corrected by medication adjustments. However, controversy exists on the mechanisms underlying the decrease in benefit from L-dopa. So researchers assessed the response to L-dopa in late-stage Parkinson's Disease.

People with late stage Parkinson's Disease and people who had undergone Deep Brain Stimulation underwent an acute L-dopa challenge test. Those people with late stage Parkinson's Disease improved by only 11%, whereas those people who had undergone Deep Brain Stimulation improved by 37%. Rest tremor showed the largest improvement. However, the magnitude of the response to L-dopa was significantly correlated with the severity of dyskinesias in people with late stage Parkinson's Disease. As the Parkinson's Disease symptoms improved, even though the improvement was mild, the dyskinesia worsened. A decrease in L-dopa response is therefore an indicator of the progression of Parkinson's Disease.

Reference : Parkinsonism and Related Disorders [2016] 26 : 10-16 (M.Fabbri, M.Coelho, D.Abreu, L.C.Guedes, M.M.Rosa, N.Costa, A.Antonini, J.J.Ferreira)
Complete abstract :

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