In this paper we determined the pharmacological profiles of novel ketamine and phencyclidine analogues currently used as 'designer drugs' and compared them to the parent substances via the resources of the National Institute of Mental Health Psychoactive Drug Screening Program. The ketamine analogues methoxetamine ((RS)-2-(ethylamino)-2-(3-methoxyphenyl)cyclohexanone) and 3-MeO-PCE...
3,4-Methylenedioxymethamphetamine (MDMA), also known as "Ecstasy", is a common recreational drug of abuse. Several previous studies have attributed the central serotonergic neurotoxicity of MDMA to distal axotomy, since only fine serotonergic axons ascending from the raphe nucleus are lost without apparent damage to their cell bodies. However, this axotomy has never been visualized directly in...
Lysergic N,N-diethylamide (LSD) is perhaps one of the most intriguing psychoactive substances known and numerous analogs have been explored to a varying extent in previous decades. In 2013, N6-allyl-6-norlysergic acid diethylamide (AL-LAD) and (2’S,4’S)-lysergic acid 2,4-dimethylazetidide (LSZ) have appeared on the ‘research chemicals’ / new psychoactive substances (NPS) market in both powdered...
Background: Esketamine and ketamine have been shown to produce rapid antidepressant action in patients with treatmentresistant depression (TRD). The aim of the current study was to assess the efficacy, safety and dose response of intranasal esketamine in patients with TRD. Methods: This was a 2-Panel, doubly-randomized, double-blind, placebo-controlled, multicenter study. Panel A was conducted...
Specific objective of the study: This study is aimed to investigate desipramine, venlafaxine and bupropion on depression and anxiety in mice. Methods used: We used a classic tricyclic antidepressant, desipramine; a serotonin-norepinephrine reuptake inhibitör, venlafaxine; a second-generation antidepressant agent that blocks centrally the reuptake of noradrenaline and dopamine, bupropion in...
Abstract Objective: One third of major depressive disorder (MDD) patients are unresponsive to antidepressant drugs, a sub-type known as treatment resistant depression (TRD). Acute intravenous administration of ketamine at sub-anaesthetic dosage is the only efficacious pharmacological treatment in TRD. Development of TRD preclinical assays to screen for more efficacious antidepressant drugs and...
Psilocybin, a classical tryptamine hallucinogen, serves as a model of acute psychosis in humans.Intoxication with this compound induces significant alterations in perception, thought disturbance and emotional processing, effects that mimic psychotic symptoms.The neurochemical basis of its effects is related to the stimulation of serotonin 5-HT 1A a 5-HT 2A/C receptors.Disconnection is one of...
Psilocybin, a classical tryptamine hallucinogen, serves as a model of acute psychosis in humans.Intoxication with this compound induces significant alterations in perception, thought disturbance and emotional processing, effects that mimic psychotic symptoms.The neurochemical basis of its effects is related to the stimulation of serotonin 5-HT 1A a 5-HT 2A/C receptors.Disconnection is one of...
Recently, the anti-addictive potential of ayahuasca, a dimethyltryptamine(DMT)- and β-carboline-rich hallucinogenic beverage traditionally used by indigenous groups of the Northwest Amazon and currently by syncretic churches worldwide, has received increased attention. To better evaluate this topic, we performed a systematic literature review using the PubMed database to find quantitative...
The present study investigated interactions between the novel psychoactive tryptamines DiPT, 4-OH-DiPT, 4-OH-MET, 5-MeO-AMT, and 5-MeO-MiPT at monoamine receptors and transporters compared with the classic hallucinogens lysergic acid diethylamide (LSD), psilocin, N,N-dimethyltryptamine (DMT), and mescaline. We investigated binding affinities at human monoamine receptors and determined...