Ketamine Produces a Long-Lasting Enhancement of CA1 Neuron Excitability
bioRxiv Preprint Server May 26, 2021 preprint DOI: 10.1101/2021.05.26.445851 via bioRxiv
Summary
AI-generated from the abstractKetamine, a fast-acting and long-lasting antidepressant, alters brain cell activity at the synaptic, neuronal, and circuit levels. Its antidepressant effects involve interactions with key brain receptors, specifically N-methyl-D-aspartate (NMDA) receptors, though the exact cellular mechanisms remain unclear. This study examined how ketamine changes the excitability of individual neurons and networks, and the duration of these effects, to better understand the therapeutic mechanism behind its rapid and lasting antidepressant benefits.
Study at a glance
| Characteristics | Observational study |
|---|---|
| Intervention | Ketamine |
| Topics | Ketamine |
| Keywords | Compound Neurobiology Brain cell activity Individual neurons |
| Citations | 1 |
| Key finding | Ketamine's antidepressant actions involve synaptic, neuronal, and circuit-level changes, with NMDA receptor involvement, though the precise mechanisms are not yet clear. |
Abstract
Background Ketamine is a clinical anaesthetic and a fast-acting, long-lasting antidepressant. Ketamine is known for its antagonistic actions on N-methyl-D-aspartate (NMDA) receptors, but mechanisms leading to antidepression are not clear. The present study examined synaptic, neuronal and circuit-level loci, the duration of ketamine’s actions, and the involvement of NMDA receptors in these actions.