Université de Fribourg

Astrocytic and neuronal oxidative metabolism are coupled to the rate of glutamate–glutamine cycle in the tree shrew visual cortex

Sonnay, Sarah ; Poirot, Jordan ; Just, Nathalie ; Clerc, Anne-Catherine ; Gruetter, Rolf ; Rainer, Gregor ; Duarte, João M. N.

In: Glia, 2018, vol. 66, no. 3, p. 477–491

Astrocytes play an important role in glutamatergic neurotransmission, namely by clearing synaptic glutamate and converting it into glutamine that is transferred back to neurons. The rate of this glutamate–glutamine cycle (VNT) has been proposed to couple to that of glucose utilization and of neuronal tricarboxylic acid (TCA) cycle. In this study, we tested the hypothesis that glutamatergic...