Learn More
Autoimmune synaptic encephalitides are recently described human brain diseases leading to psychiatric and neurological syndromes through inappropriate brain-autoantibody interactions. The most frequent synaptic autoimmune encephalitis is associated with autoantibodies against extracellular domains of the glutamatergic N-methyl-d-aspartate receptor, with(More)
BACKGROUND A severe encephalitis that associates with auto-antibodies to the NR1 subunit of the NMDA receptor (NMDA-R) was recently reported. Patients' antibodies cause a decrease of the density of NMDA-R and synaptic mediated currents, but the in vivo effects on the extracellular glutamate and glutamatergic transmission are unknown. METHODS We(More)
The rare occurrence of extra-neural metastases in patients having a tumour of the central nervous system (CNS) could mean that the symptoms of a metastatic lesion are confused with a second pathology. We recently treated a patient with a glioblastoma multiforme who was developing a pancytopaenia at the initial diagnosis. The frequent red cell and platelet(More)
The authors report here 2 cases of subacute-onset encephalitis with N-methyl-D-aspartate (NMDA) receptor antibodies. One had a paraneoplastic syndrome associated with a neuroblastoma, whereas the other had no primary tumor. This disease was originally described as a paraneoplastic syndrome in young women with ovarian teratoma. The clinical features of both(More)
Brain and brainstem changes of serotoninergic 5-hydroxytryptophan (5-HT)(1A) receptor density have been reported in patients with major depressive disorder as well as in patients with temporal lobe epilepsy (TLE), using PET and the selective antagonist radiotracers [(11)C]WAY-100635 or [(18)F]FC-WAY. We used a distinct 5-HT(1A) antagonist, [(18)F]MPPF,(More)
A severe subacute encephalitis associated with auto-antibodies to the NMDA receptor (NMDA-R) has been reported in humans. These antibodies are directed to NR1/NR2 heteromers of the NMDA receptor. We studied the effects of patients’ cerebrospinal fluid (CSF) injected in rFr2 (the prefrontal area) on the afferent facilitation in a conditioning paradigm for(More)
Anti-N-methyl-D-aspartate receptor encephalitis is an emerging disease that affects young women. Its diagnosis can be delayed because of the neuropsychiatric symptoms in the foreground, but early removal of the associated teratoma improves the prognosis. We report the treatment of a patient with anti-N-methyl-D-aspartate receptor encephalitis that was(More)
We report the MR imaging findings in a 20 year old woman with status epilepticus of more than 3 months duration following an episode of lymphocytic meningitis. Repeated MR examinations showed progressive symmetrical cortical lesions, followed by subcortical and basal ganglia lesions which evolved to cortical laminar necrosis and hemorrhagic necrosis with(More)
PURPOSE OF REVIEW To describe specificities and new advances in treatment of paraneoplastic neurological syndromes (PNS). RECENT FINDINGS PNS are defined as neurological syndromes of unknown cause that often antedate the diagnosis of an underlying cancer that is usually not clinically evident. The clinical signs of PNS are accurately described and(More)
OBJECTIVE The aim of this study was to describe the clinical presentation of children and adolescents with anti-Hu antibodies (Hu-Abs). METHODS This was a retrospective study of children and adolescents with Hu-Abs collected by the French Paraneoplastic Neurological Syndrome (PNS) Reference Center between January 1, 2000 and December 31, 2011. RESULTS(More)