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Nikola Pinterová-Leca

Psychedelics Research Centre, National Institute of Mental Health, Prague, Czechia.

2 papers in the library · 17 citations · publishing 2022-2023

Papers

Pharmacokinetic, pharmacodynamic, and behavioural studies of deschloroketamine in Wistar rats.

British journal of pharmacology January 1, 2022 Kristýna Štefková-mazochová, Hynek Danda, Wim Dehaen et al. 13 citations

Deschloroketamine (DCK), a structural analogue of ketamine sold as a recreational drug, was tested in Wistar rats to examine its pharmacokinetics, acute effects, and addictive potential. DCK rapidly entered the brain, with peak levels at 30 minutes and sustained high levels for 2 hours. It blocks NMDA receptors similarly to ketamine, with the S-enantiomer more potent. DCK stimulated locomotion, induced place preference (a sign of reward), and strongly disrupted prepulse inhibition (PPI). Locomotor stimulation faded faster than PPI disruption. S-DCK had stronger stimulatory effects than R-DCK, but both equally disrupted PPI. DCK's behavioral and addictive profiles resemble ketamine's, with a slightly slower clearance, matching its reported longer duration. These findings clarify risks of illicit DCK use.

Acute pharmacological profile of 2C-B-Fly-NBOMe in male Wistar rats-pharmacokinetics, effects on behaviour and thermoregulation.

Frontiers in pharmacology January 1, 2023 Kateřina Syrová, Klára Šíchová, Hynek Danda et al. 4 citations

2C-B-Fly-NBOMe, a new psychoactive substance related to the psychedelic entactogen 2C-B, was studied in adult male Wistar rats. After injection, peak drug levels in blood serum occurred at 30 minutes (28 ng/ml) and in brain tissue at 60 minutes (171 ng/g), with the compound still detectable in the brain after 8 hours. The drug dose-dependently reduced locomotor activity and strongly disrupted the acoustic startle response, with a weaker effect on prepulse inhibition. It did not cause significant changes in body temperature. The overall profile resembles that of 2C-B and other NBOMe substances, suggesting slow brain penetration and inhibitory effects on motor performance and sensorimotor gating.