The role of astroglial cells in GABA uptake is not very prominent, as the majority of GABA released during neurotransmission is accumulated by both pre- and postsynaptic neurones. Nonetheless, astrocytes do express GABA transporters, and their activity contributes to overall GABA uptake. All three types of GABA transporters, classified as GAT-1 to GAT-3, have been detected in astrocytes; the expression of GAT-3 dominates in cortical and hippocampal astrocytes, whereas cerebellar Bergmann glial cells express GAT-1. GABA transporters use the electrochemical gradient for Na+, and translocation of one GABA molecule requires a cotransportation of two Na+ ions.
Was this article helpful?
This guide will help millions of people understand this condition so that they can take control of their lives and make informed decisions. The ebook covers information on a vast number of different types of neuropathy. In addition, it will be a useful resource for their families, caregivers, and health care providers.