Relationship between physiological measures of excitability and levels of glutamate and GABA in the human motor cortex
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Glutamate, released at a majority of excitatory synapses in the central nervous system, depolarizes neurons by acting at specific receptors. Its action is terminated by removal from the synaptic cleft mostly via Na(+)-dependent uptake systems located on bo ...
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Astrocyte end-feet surround intraparenchymal microvessels and represent therefore the first cellular barrier for glucose entering the brain. As such, they are a likely site of prevalent glucose uptake. Astrocytic processes are also wrapped around synaptic ...
Mammalian brain contains 3 peptides related to the pro-somatostatin molecule: somatostatin-14 (SS14), the form originally identified from hypothalamic extracts, somatostatin-28 (SS28) and somatostatin 28 (1-12) (SS28 (1-12)). By using antibodies which sele ...
Neurotransmitter-specific anatomical techniques have provided a tool to define the morphological constraints within which a given neurotransmitter will exert its cellular actions. Biochemical and electrophysiological approaches have revealed the nature of ...
What is the nature of the cellular actions of VIP (vasoactive intestinal polypeptide) in the neocortex? Is VIP co-localized with another neurotransmitter? Do VIP neurons interact with other cortical neurotransmitter systems? How does the intracortical VIP- ...