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OBJECTIVE Chronically demyelinated multiple sclerosis (MS) lesions are frequently characterized by scarce undifferentiated oligodendrocyte progenitor cells (OPCs), suggesting the exhaustion of a local OPC pool followed by failure of recruitment and differentiation. Stimulating prompt OPC recruitment following demyelination could improve myelin repair by(More)
Portosystemic shunts (PSS) remain an unrecognized cause of neurological or psychiatric disorders. Here we report 5 patients with neuropsychiatric presentations of PSS. Main presentations encompassed progressive Parkinsonism, organic psychosis, recurrent coma, recurrent delusion, cognitive decline and posterior cortical atrophy. None of our patients had a(More)
Dystonias represent a heterogeneous group of movement disorders responsible for sustained muscle contraction, abnormal postures, and muscle twists. It can affect focal or segmental body parts or be generalized. Primary dystonia is the most common form of dystonia but it can also be secondary to metabolic or structural dysfunction, the consequence of a(More)
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