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2 papers
This study in rodents and in neuronal cell cultures found that ketamine and its antidepressant metabolite (2R,6R)-HNK rapidly lower neuronally released glutamate in brain regions linked to depression. Using fast glutamate sensors (FAST), isolated synapses, and primary cortical neurons, the authors showed reduced depolarization-evoked glutamate release within 30 minutes after…
Researchers pooled results from 29 human studies that measured blood levels of a protein called brain-derived neurotrophic factor, or BDNF, after people received so-called psychoplastogen drugs such as ketamine or psychedelics. They found no clear change in blood BDNF after these drugs. The authors say this does not prove the…
