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Kennett D. Radford

2 papers in the library · 39 citations · publishing 2019-2025

Papers

Effects of subanesthetic intravenous ketamine infusion on neuroplasticity-related proteins in the prefrontal cortex, amygdala, and hippocampus of Sprague-Dawley rats

IBRO Reports January 16, 2019 Michael Zhang, Kennett D. Radford, Mercedes Y. Driscoll et al. 34 citations

A single intravenous infusion of ketamine in rats produces dose-dependent and brain region-specific changes in proteins linked to neural plasticity. A high dose (40 mg/kg) increased c-Fos in the medial prefrontal cortex and amygdala, and increased pERK in the medial prefrontal cortex and hippocampus. A low dose (10 mg/kg) increased BDNF in the amygdala but decreased pERK in the medial prefrontal cortex and hippocampus. These results suggest that the route and dose of ketamine administration matter for its effects on neuroplasticity-related proteins.

Effects of ketamine on fear memory extinction: a review of preclinical literature.

Frontiers in Neuroscience January 1, 2025 Martin Boese, Rina Berman, Kennett D. Radford et al. 5 citations

This review summarizes preclinical studies on how ketamine affects fear extinction, the process of learning that trauma-related cues are no longer threatening. Findings are inconsistent: ketamine may enhance, impair, have no effect, or produce mixed effects on fear extinction, depending on dosage, route, and timing of administration. The authors recommend future research include more female subjects, use clinically relevant doses and routes, and employ behavioral assays relevant to human PTSD to improve translation from animal studies to clinical treatment.