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René Hen

4 papers in the library · 298 citations · publishing 2003-2025

Papers

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Psilocybin induces sex- and context-specific recruitment of the stress axis

Current Biology December 9, 2025 Sarah G. Cook, Stephanie J. Lee, Emma Ference et al. 3 citations

Following decades of prohibition, psychedelic drugs have reemerged as promising therapeutics for stress-related conditions, including depression and post-traumatic stress disorder. Still, their impact on stress-related brain regions and the hypothalamic-pituitary-adrenal (HPA) axis remains unclear. This work explores the acute effects of psilocybin on the primary regulators of the HPA axis:...

Anorexia induced by activation of serotonin 5-HT4 receptors is mediated by increases in CART in the nucleus accumbens.

Proceedings of the National Academy of Sciences of the United States of America October 9, 2007 Alexandra Jean, Grégory Conductier, Christine Manrique et al.

Anorexia nervosa is a growing concern in mental health, often inducing death. The potential neuronal deficits that may underlie abnormal inhibitions of food intake, however, remain largely unexplored. We hypothesized that anorexia may involve altered signaling events within the nucleus accumbens (NAc), a brain structure involved in reward. We show here that direct stimulation of serotonin...

3,4-N-methlenedioxymethamphetamine-induced hypophagia is maintained in 5-HT1B receptor knockout mice, but suppressed by the 5-HT2C receptor antagonist RS102221.

Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology June 2005 Grégory Conductier, Cyril Crosson, René Hen et al.

3,4-Methylenedioxy-N-methamphetamine (MDMA or 'ecstasy') is a psychoactive substance, first described as an appetite suppressant in humans, inducing side effects and even death. MDMA increases serotonin (5-HT) levels, and 5-HT inhibits food intake, but the 5-HT receptors involved in MDMA-induced changes in feeding behavior are unknown. We examined whether a systemic MDMA injection would reduce...

Transcriptome Fingerprints Distinguish Hallucinogenic and Nonhallucinogenic 5-Hydroxytryptamine 2A Receptor Agonist Effects in Mouse Somatosensory Cortex

Journal of Neuroscience October 1, 2003 Javier González-Maeso, Tony Yuen, Barbara J. Ebersole et al. 295 citations

Most neuropharmacological agents and many drugs of abuse modulate the activity of heptahelical G-protein-coupled receptors. Although the effects of these ligands result from changes in cellular signaling, their neurobehavioral activity may not correlate with results of in vitro signal transduction assays. 5-Hydroxytryptamine 2A receptor (5-HT2AR) partial agonists that have similar...