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Denis J David

4 papers in the library · 16 citations · publishing 2024-2025

Papers

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Quantitative monitoring of ketamine's impact on synaptic density using 11C-UCB-J PET imaging in the corticosterone mouse model of anxiety/depression.

Molecular Psychiatry November 18, 2025 Cassandre Corvo, Sébastien Goutal, Indira Mendez-David et al. 1 citation

Ketamine was shown to promote synaptogenesis, which is thought to account for its antidepressant effects through the restoration of lost synaptic connections observed in depression. PET imaging using 11C-UCB-J, a radiotracer targeting the synaptic vesicle protein 2 A (SV2A), was investigated as a translational method to monitor ketamine-induced changes in synaptic density in the corticosterone...

Psilocybin as Transformative Fast‐Acting Antidepressant: Pharmacological Properties and Molecular Mechanisms

Fundamental and Clinical Pharmacology July 16, 2025 Makiath Adebo, Marie Laure Bonnet, Ons Laouej et al. 10 citations

ABSTRACT In the 1950s–60s, serotonergic psychedelic drugs were studied as potential adjuvants to psychotherapy to treat addiction and alcoholism. However, starting in the 70s, preclinical and clinical studies on psychedelics stopped for decades because legislation controlled its recreational use, citing their hallucinogenic and psychotomimetic effects, as well as their abuse potential....

Chronic, combinatorial targeting of NMDARs and 5-HT4Rs exerts extended behavioral effects against stress-induced perseverative behavior and hyponeophagia.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology April 22, 2025 Briana K Chen, Alicia Whye, Louise C Matthews et al. 2 citations

Serotonin (5-HT) receptors and N-methyl-D-aspartate receptors (NMDARs) have both been implicated in stress-induced psychiatric disorders. However, there is a paucity of studies evaluating the effectiveness of novel combinatorial pharmacological treatments to treat stress-related disorders. Here, we evaluated whether administration of combinatorial (R,S)-ketamine, an NMDAR antagonist and Food...

Ketamine metabolism via hepatic CYP450 isoforms contributes to its sustained antidepressant actions.

Neuropharmacology November 1, 2024 Thi Mai Loan Nguyen, Jean-Philippe Guilloux, Céline Defaix et al. 3 citations

(R,S)-ketamine (ketamine) has rapid and sustained antidepressant (AD) efficacy at sub-anesthetic doses in depressed patients. A metabolite of ketamine, including (2R,6R)-hydroxynorketamine ((6)-HNKs) has been reported to exert antidepressant actions in rodent model of anxiety/depression. To further understand the specific role of ketamine's metabolism in the AD actions of the drug, we evaluated...