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Katarina E. Leão

6 papers in the library · 63 citations · publishing 2020-2025

Papers

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Serotonergic psychedelic 5-MeO-DMT alters plasticity-related gene expression and generates anxiolytic effects in stressed mice.

Molecular Psychiatry 2025 Margareth Nogueira, Daiane C Ferreira Golbert, Richardson Menezes et al. 18 citations

Serotonergic psychedelics have potential therapeutic effects in treating anxiety and mood disorders, often after a single dose, and are suggested to have plasticity-inducing action. However, a comprehensive mechanism of action is still lacking. Here, we investigated how a single dose of the short-acting 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) acts on gene expression from microdissected...

Author Correction: 5-MeO-DMT induces sleep-like LFP spectral signatures in the hippocampus and prefrontal cortex of awake rats

Scientific Reports July 14, 2024 Annie C. Souza, Bryan C. Souza, Arthur França et al. 1 citation

The original version of this Article contained an error in Affiliation 6, which was incorrectly given as ‘Brain Network Dynamics Unit, University of Oxford, Oxford, UK.’ The correct affiliation is listed below:

5-MeO-DMT induces sleep-like LFP spectral signatures in the hippocampus and prefrontal cortex of awake rats.

Scientific Reports May 17, 2024 Annie C. Souza, Bryan C. Souza, Arthur França et al. 7 citations

5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT) is a potent classical psychedelic known to induce changes in locomotion, behaviour, and sleep in rodents. However, there is limited knowledge regarding its acute neurophysiological effects. Local field potentials (LFPs) are commonly used as a proxy for neural activity, but previous studies investigating psychedelics have been hindered by confounding...

Katarina Leão: Links between the auditory and limbic systems, with a focus on the effects of unconventional novel treatment options, such as psychedelics and cannabis extract

Psychedelics January 25, 2024 Katarina E. Leão 1 citation

Katarina E. Leão, PhD, is an associate professor at the Brain Institute at the Federal University of Rio Grande do Norte, Natal, Brazil. She is vice-coordinator of the postgraduate program in neuroscience (2013–2017 and 2023 – current) and spent 2020 as a visiting professor at the Karolinska Institute/Uppsala University, Sweden. She is head of the Hearing and Neuronal activity lab researching...

Serotonergic psychedelic 5-MeO-DMT alters plasticity-related gene expression and generates anxiolytic effects in stressed mice

Research Square December 28, 2023 Margareth Nogueira, Daiane C Ferreira Golbert, Richardson Menezes et al. 2 citations

Abstract Serotonergic psychedelics have potential therapeutic effects in treating anxiety and mood disorders, often after a single dose, and are suggested to have plasticity-inducing action. One lesser studied psychedelic, the 5-methoxy-N, N-dimethyltryptamine (5-MeO-DMT), is suggested to have anxiolytic effects yet a comprehensive mechanism of action is still lacking. Here, we investigated the...

Anxiety-like behavior induced by salicylate depends on age and can be prevented by a single dose of 5-MeO-DMT.

Experimental Neurology April 1, 2020 Jessica Winne, Barbara C Boerner, Thawann Malfatti et al. 34 citations

Salicylate intoxication is a cause of tinnitus and comorbidly associated with anxiety in humans. In a previous work, we showed that salicylate induces anxiety-like behavior and hippocampal type 2 theta oscillations (theta2) in mice. Here we investigate if the anxiogenic effect of salicylate is dependent on age and previous tinnitus experience. We also tested whether a single dose of DMT can...