Thomas Parkinson

Definition and stakes

Thomas Jubault; Simona M. Brambati; Clotilde Degroot; Benoît Kullmann; Antonio P. Strafella; Anne-Louise Lafontaine; Sylvain Chouinard; Oury Monchi,  Regional Brain Stem Atrophy in Idiopathic Parkinson's Disease Detected by Anatomical MRI…

“ Since VBM analysis is a conservative method, as no a priori region of interest is studied, we postulate that damage in this region is common to all patients while the regional evolution of the neurodegenerative process may be more variable across PD patients, and hence lowers the sensibility of white matter VBM analysis in other brain regions. It is also likely that later stages of the disease affect grey matter more significantly but in a more heterogeneous way. ”
Source: Wikisource

Thomas Jubault; Simona M. Brambati; Clotilde Degroot; Benoît Kullmann; Antonio P. Strafella; Anne-Louise Lafontaine; Sylvain Chouinard; Oury Monchi,  Regional Brain Stem Atrophy in Idiopathic Parkinson's Disease Detected by Anatomical MRI…

“ PD clinical diagnosis is particularly prone to errors [1] , [2] , as this array of motor symptoms is also present in a wide range of other parkinsonian conditions such as progressive supranuclear palsy, dementia with Lewy bodies, and multiple system atrophy. Confirmation of the diagnosis is often brought by disease progression and the response of patients to levodopa medication. ”
Source: Wikisource

Thomas Jubault; Simona M. Brambati; Clotilde Degroot; Benoît Kullmann; Antonio P. Strafella; Anne-Louise Lafontaine; Sylvain Chouinard; Oury Monchi,  Regional Brain Stem Atrophy in Idiopathic Parkinson's Disease Detected by Anatomical MRI…

“ In the framework of Braak's progression of the disease, we should observe damages across all PD patients localized in the brainstem, the hypothesized initial location of the neurodegeneration. Voxel based morphometry (VBM) is a technique that identifies local atrophies without the subjective selection of an a priori region of interest. Based on previous neuropathological findings, we expected to observe brain tissue volume reduction in the medulla oblongata/lower pontine tegmentum of PD patients compared to healthy control subjects. ”
Source: Wikisource

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