Journal
JOURNAL OF NEUROSCIENCE
Volume 30, Issue 16, Pages 5776-5780Publisher
SOC NEUROSCIENCE
DOI: 10.1523/JNEUROSCI.3957-09.2010
Keywords
-
Categories
Funding
- Swedish Research Council [12600]
- Sahlgrenska Hospital
Ask authors/readers for more resources
Many neurons typically fire action potentials in brief, high-frequency bursts with specific consequences for their synaptic output. Here we have examined short-term plasticity engaged during burst activation using electrophysiological recordings in acute rat hippocampal slices. We show that CA3-CA1 glutamate synapses exhibit a prominent depression of presynaptic release probability for similar to 1 s after such a burst. This postburst depression exhibits a distinct cooperativity threshold, is abolished by inhibiting astrocyte metabolism and astrocyte calcium signaling, and is not operational in the developing hippocampus. Our results suggest that astrocytes are actively involved in short-term synaptic depression, shaping synaptic activity during behaviorally relevant neural activity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available