EClinicalMedicine
April 2, 2026
Antony Salamé, Samuel Bulteau, Gabriel Robert et al.
Background Late-life depression with inadequate antidepressant response is a pressing clinical issue with limited proven therapies. Nitrous oxide (N 2 O) may offer a new therapeutic avenue with rapid and safe antidepressant effects in late-life depression with inadequate antidepressant response. Methods We conducted a double-blind, randomised, placebo-controlled, single-dose trial (November...
European Journal of Psychotraumatology
April 1, 2026
Maud Rothärmel, Lila Mekaoui, François Kazour et al.
1 citation
Background: Posttraumatic stress disorder (PTSD) is a severe and frequent affection that is highly comorbid to major depressive disorder. Comorbid PTSD and depression increase the risk of treatment-resistant depression (TRD), with a high risk of functional impairment and suicide. Esketamine nasal spray is a recent validated treatment for TRD, but its efficacy on comorbid TRD-PTSD remains...
Neuroscience and Biobehavioral Reviews
March 1, 2026
Andrew Laurin, Hugo Bottemanne, Samuel Bulteau et al.
2 citations
Current models of post-traumatic stress disorder (PTSD) predominantly focus on emotional dysregulation, avoidance behaviors, and intrusive symptoms, with limited attention to disturbances in bodily self-consciousness. These frameworks do not fully account for how trauma may disrupt the integration of interoceptive and exteroceptive signals underlying the sense of embodied self. Building on...
International Clinical Psychopharmacology
January 22, 2024
L. Chevalier, S. Bulteau, L. Cheval et al.
Intranasal esketamine is used in France for treatment-resistant depression. Dissociative symptoms are common side effects during treatment sessions. We report a case of delayed spontaneous dissociative symptoms following esketamine administration. A 20-year-old female with treatment-resistant depression received esketamine treatment. Dissociative symptoms occurred during sessions and persisted...
Molecular Psychiatry
September 1, 2023
Thomas Desmidt, Paul-Armand Dujardin, Frédéric Andersson et al.
Nitrous oxide (N2O) has recently emerged as a potential fast-acting antidepressant but the cerebral mechanisms involved in this effect remain speculative. We hypothesized that the antidepressant response to an Equimolar Mixture of Oxygen and Nitrous Oxide (EMONO) would be associated with changes in cerebral connectivity and brain tissue pulsations (BTP). Thirty participants (20 with a major...