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Paulo C R Barbosa

Universidade Estadual de Santa Cruz, School of Philosophy and Human Sciences, Ilheus, Bahia, Brazil.

2 papers in the library · 63 citations · publishing 2021-2022

Papers

Changes in mental health, wellbeing and personality following ayahuasca consumption: Results of a naturalistic longitudinal study.

Frontiers in pharmacology January 1, 2022 Daniel Perkins, Broc A Pagni, Jerome Sarris et al. 53 citations

Fifty-three first-time ayahuasca users (32 women, 21 men) completed questionnaires before and one month after a facilitated ceremony. Depression, anxiety, stress, alcohol and cannabis use, body dissociation, self-alienation, impulsivity, and negative affect significantly decreased, while positive mood, self-efficacy, authentic living, extraversion, agreeableness, open-mindedness, spirituality, and relationship satisfaction increased. Baseline traits—especially high negative emotionality and body dissociation, and low self-efficacy—strongly predicted improvements in mental health and substance use, whereas the intensity of the mystical experience had little predictive value. The findings suggest ayahuasca may produce broad mental health benefits and that personal traits could guide personalized treatment.

Ibogaine Blocks Cue- and Drug-Induced Reinstatement of Conditioned Place Preference to Ethanol in Male Mice.

Frontiers in pharmacology January 1, 2021 Gabrielle M Henriques, Alexia Anjos-Santos, Isa R S Rodrigues et al. 10 citations

Ibogaine, a psychedelic from the African plant Tabernanthe iboga, blocked the reinstatement of a conditioned place preference for ethanol in male mice, suggesting it may disrupt learned alcohol-seeking behaviors. Ethanol (1.8 g/kg) induced a conditioned place preference, but ibogaine (10 or 30 mg/kg) did not produce rewarding effects on its own. Repeated ibogaine treatment after ethanol conditioning prevented reinstatement of the preference both when mice received a priming ethanol injection and when they were re-exposed to the ethanol-paired compartment without the drug. These results indicate ibogaine could have therapeutic potential for alcohol use disorder at doses that lack rewarding effects.