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BACKGROUND Mental deficiency has been linked to abnormalities in cortical neuronal network connectivity and plasticity. These mechanisms are in part under the control of two interacting signalling pathways, the serotonergic and the brain-derived neurotrophic (BDNF) pathways. The aim of the current paper is to determine whether particular alleles or(More)
Many genes are now thought to confer susceptibility to autism. Despite the fact that this neuropsychiatric disease appears to be related to several different causes, common cellular and molecular pathways have emerged and point to synaptic dysfunction or cellular growth. Several studies have indicated the importance of the ubiquitin pathway in synaptic(More)
The oligodendrocyte myelin glycoprotein (OMgp) inhibits axon regeneration after injury in the adult mammalian central nervous system. However its function during brain development remains largely unknown. The present study aims to analyze a possible role for OMgp during neurogenesis. We showed that neural stem cells (NSC) extracted from the whole(More)
Mental retardation (MR) is frequent in neurofibromatosis type 1 (NF1). Allele 5 of a tetranucleotide polymorphism in an Alu element (GXAlu) localized in intron 27b of the NF1 gene has previously been associated with autism. We considered that the microsatellite GXAlu could also represent a risk factor in MR without autism. We developed a rapid method for(More)
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