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Impaired remyelination in multiple sclerosis (MS) might be due to the failure of oligodendrocyte precursor cells (OPC) to differentiate into myelinating oligodendrocytes. Animal experimental data have shown that p57kip2 inhibits oligodendroglial differentiation, indicating that this factor could contribute to remyelination failure. This study investigates oligodendroglial p57kip2 expression and its...
In the central nervous system (CNS), myelin sheaths around axons are formed by glial cells named oligodendrocytes (OLs). In turn, OLs are generated by oligodendrocyte precursor cells (OPCs) during postnatal development and in adults, according to a process that depends on the proliferation and differentiation of these progenitors. The maturation of OL lineage cells as well as myelination by OLs are...
Fast chemical synaptic transmission is a major form of neuronal communication in the nervous system of mammals. Another important, but very different, form of intercellular communication is volume transmission, which is a slower non‐synaptic signaling. The amino acid glutamate is the most abundant excitatory neurotransmitter in the nervous system, which mediates both synaptic and non‐synaptic signaling...
The mammalian brain is a complex organ comprising neurons, glia, and more than 1 × 1014 synapses. Neurons are a heterogeneous group of electrically active cells, which form the framework of the complex circuitry of the brain. However, glial cells, which are primarily divided into astrocytes, microglia, oligodendrocytes (OLs), and oligodendrocyte precursor cells (OPCs), constitute approximately half...
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