Post-prandial Hypotension and Sleepiness in Parkinson's Disease and Other Synucleinopathies

"* Ambulatory polysomnography for the night preceding each test~* Usual antiparkinsonian treatments at their usual dose and timing~* Randomisation to receive an oral solution of glucose load or a placebo (fructose). Standard meal 4 hours after the test~* During two hours following the oral solution administration and the standardized meal, we will perform the followings for each patient :~ * continuous digital blood pressure monitoring by Nexfin®~ * blood pressure monitoring at brachial artery~ * continuous polysomnographic recording~ * synchronized continuous digital audiovisual recording~ * glucose and insulin blood level monitoring Additional blood samples will be taken in order to assay the intestine-pancreatic neuropeptides including incretins GLP- 1 and GIP"

"* Ambulatory polysomnography for the night preceding each test~* Usual antiparkinsonian treatments at their usual dose and timing~* Randomisation to receive an oral solution of glucose load or a placebo (fructose). Standard meal 4 hours after the test~* During two hours following the oral solution administration and the standardized meal, we will perform the followings for each patient :~ * continuous digital blood pressure monitoring by Nexfin®~ * blood pressure monitoring at brachial artery~ * continuous polysomnographic recording~ * synchronized continuous digital audiovisual recording~ * glucose and insulin blood level monitoring Additional blood samples will be taken in order to assay the intestine-pancreatic neuropeptides including incretins GLP- 1 and GIP"