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Marc Walter

University of Basel Psychiatric Clinics, Wilhelm Klein-Strasse 27, 4002 Basel, Switzerland.

4 papers in the library · 199 citations · publishing 2013-2022

Papers

A systematic literature review of clinical trials and therapeutic applications of ibogaine.

Journal of substance abuse treatment July 1, 2022 Patrick Köck, Katharina Froelich, Marc Walter et al. 68 citations

Ibogaine and its alkaloids reduce withdrawal symptoms and craving in substance use disorders, and may also improve depression and trauma-related symptoms. However, severe medical complications and deaths have been reported, linked to neuro- and cardiotoxic effects. Two fatalities occurred among 705 individuals across 24 studies, which included two randomized controlled trials and 17 open-label studies. Ibogaine's distinct psychoactive and somatic effects set it apart from classic hallucinogens like LSD and psilocybin. Rigorous medical monitoring is needed for safe application.

Neuroimaging in moderate MDMA use: A systematic review

Neuroscience & Biobehavioral Reviews December 30, 2015 Felix Mueller, Claudia Lenz, Markus Steiner et al. 68 citations

Moderate use of MDMA (ecstasy) shows no convincing evidence of structural or functional brain alterations in neuroimaging studies. A review of 19 studies, each involving subjects with fewer than 50 lifetime episodes or under 100 tablets consumed, found no significant harmful effects. However, the lack of results is linked to high methodological variability in dosages and co-consumption of other drugs, low study quality, and small sample sizes.

Reduction in Cerebral Perfusion after Heroin Administration: A Resting State Arterial Spin Labeling Study

PLoS ONE September 10, 2013 Niklaus Denier, Hana Gerber, Marc Vogel et al. 32 citations

In 15 heroin-dependent patients receiving stable heroin-assisted treatment, heroin reduced blood flow in the left anterior cingulate cortex, left medial prefrontal cortex, and insula compared to placebo. These brain areas are involved in self-regulation and emotional processing. The findings suggest that heroin's effects on these regions may contribute to its ability to reduce craving and produce relaxation in maintenance therapy.

Treatment of a Complex Personality Disorder Using Repeated Doses of LSD—A Case Report on Significant Improvements in the Absence of Acute Drug Effects

Frontiers in Psychiatry October 22, 2020 Felix Müller, Markus Mühlhauser, Friederike Holze et al. 31 citations

A woman with severe, treatment-resistant depression and a complex personality disorder received weekly, ascending doses of LSD in an open psychiatric ward. Despite adequate dosing confirmed by blood tests, she experienced no substantial acute subjective drug effects. However, she showed rapid and significant improvements in depressed mood, emotional instability, low energy, and suicidal thoughts. Questionnaire scores also decreased in global severity and various psychopathological subscales. Improvements lasted about 7 days after each dose. The case suggests that LSD can induce rapid but transient beneficial effects on several symptoms, and that these improvements can occur without acute drug experiences, resembling the time course of ketamine's antidepressant effects.