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Helgi B Schiöth

5 papers in the library · 83 citations · publishing 2007-2026

Papers

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Registered Clinical Trials of Ayahuasca and DMT: A Scoping Review.

Clinical pharmacology and therapeutics July 1, 2026 Tijana Stojanovic, Kent W Nilsson, Robert Fredriksson et al.

Interest in ayahuasca and its main component, N,N-Dimethyltryptamine (DMT), has currently moved from historical and experimental use into modern clinical development. Yet, current evidence is fragmented, and systematic mapping of trial methods and design choices remains limited. We therefore systematically examined registered interventional trials of DMT, ayahuasca, and DMT combined with...

Ketamine and Esketamine in Clinical Trials: FDA-Approved and Emerging Indications, Trial Trends With Putative Mechanistic Explanations.

Clinical pharmacology and therapeutics February 1, 2025 Ksenia A Vekhova, Eugenia D Namiot, Jörgen Jonsson et al. 43 citations

Ketamine has a long and very eventful pharmacological history. Its enantiomer, esketamine ((S)-ketamine), was approved by the US Food and Drug Administration (FDA) and EMA for patients with treatment-resistant depression (TRD) in 2019. The number of approved indications for ketamine and esketamine continues to increase, as well as the number of clinical trials. This analysis provides a...

MDMA (Ecstasy) decreases the number of neurons and stem cells in embryonic cortical cultures.

Cellular and molecular neurobiology January 2010 Anna M S Kindlundh-Högberg, Chris Pickering, Grzegorz Wicher et al.

Ecstasy, 3,4-methylenedioxymetamphetamine (MDMA), is a recreational drug used among adolescents, including young pregnant women. MDMA passes the placental barrier and may therefore influence fetal development. The aim was to investigate the direct effect of MDMA on cortical cells using dissociated CNS cortex of rat embryos, E17. The primary culture was exposed to a single dose of MDMA and...

Extensive neuroadaptive changes in cortical gene-transcript expressions of the glutamate system in response to repeated intermittent MDMA administration in adolescent rats

BMC Neuroscience April 17, 2008 Anna M.s. Kindlundh-Högberg, Anna Blomqvist, Rana Malki et al. 40 citations

Repeated intermittent MDMA administration induces neuroadaptive changes in gene-transcript expressions of glutamatergic NMDA and AMPA receptor subunits, metabotropic receptors and transporters in regions of the brain regulating reward-related associative learning, cognition, and memory and neuro-endocrine functions.

Repeated intermittent MDMA binges reduce DAT density in mice and SERT density in rats in reward regions of the adolescent brain.

Neurotoxicology November 2007 Anna M S Kindlundh-Högberg, Helgi B Schiöth, Per Svenningsson

The popular recreational drug, 3,4-methylenedioxymethamphetamine (MDMA) is often taken as intermittent binges by adolescents at dance clubs. The neurobiological mechanisms that underlie MDMA-induced psychiatric conditions are still poorly understood. In the present study, mimicking adolescent patterns of administration, repeated intermittent MDMA binges (3x5 mg/(kg day) given 3h apart, every...