On the Myelination of GABAergic Interneurons

Myelination is the insulating ensheathment of axons by oligodendrocytes to increase action potential propagation and provide metabolic support. GABAergic interneurons are a heterogeneous group of predominantly local, inhibitory cells. In schizophrenia, a major debilitating psychiatric disorder, both myelination as well as functioning of GABAergic interneurons have independently been suggested to be impaired. Whether GABAergic interneurons themselves show myelination, remains unknown. Here, we show that GABAergic myelination has been extensive