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Serotonin: all studies

Page 151 of 400: studies 1,501 to 1,510 of 3,999, newest first. Back to the serotonin overview

Research

Abuse Liability Profile of Three Substituted Tryptamines

Journal of Pharmacology and Experimental Therapeutics April 8, 2011 Michael B. Gatch, Michael J. Forster, Aaron Janowsky et al. 42 citations

The abuse liability profile of three synthetic hallucinogens, N,N-diisopropyltryptamine (DIPT), 5-N,N-diethyl-5-methoxytryptamine (5-MeO-DET), and 5-methoxy-α-methyltryptamine (5-MeO-AMT), was tested in rats trained to discriminate hallucinogenic and psychostimulant compounds, including cocaine, methamphetamine, 3,4-methylenedioxymethylamphetamine (MDMA), lysergic acid diethylamide (LSD),...

Methylone and Monoamine Transporters: Correlation with Toxicity

Current Neuropharmacology March 1, 2011 Chiharu Sogawa, Norio Sogawa, Kazumi Ohyama et al. 50 citations

Methylone (2-methylamino-1-[3,4-methylenedioxyphenyl]propane-1-one) is a synthetic hallucinogenic amphetamine analog, like MDMA (3,4-methylenedioxy- methamphetamine), considered to act on monoaminergic systems. However, the psychopharmacological profile of its cytotoxicity as a consequence of monoaminergic deficits remains unclear. We examined here the effects of methylone on the transporters...

Investigating the Mechanisms of Hallucinogen-Induced Visions Using 3,4-Methylenedioxyamphetamine (MDA): A Randomized Controlled Trial in Humans

PLoS One December 2, 2010 Gantt P. Galloway, Jennifer D. Siegrist, Lynn C. Robertson et al. 22 citations

BACKGROUND: The mechanisms of drug-induced visions are poorly understood. Very few serotonergic hallucinogens have been studied in humans in decades, despite widespread use of these drugs and potential relevance of their mechanisms to hallucinations occurring in psychiatric and neurological disorders. METHODOLOGY/PRINCIPAL FINDINGS: We investigated the mechanisms of hallucinogen-induced visions...

Examining the role of oxytocin in the interoceptive effects of 3,4‐methylenedioxymethamphetamine (MDMA, ‘ecstasy’) using a drug discrimination paradigm in the rat

Addiction Biology November 11, 2010 Jillian H. Broadbear, Brendan J. Tunstall, Katherine Beringer 38 citations

ABSTRACT 3,4‐Methylenedioxymethamphetamine (MDMA, ‘ecstasy’) use results in distinctive mood changes of a prosocial nature, most likely through its enhancement of serotonin (5HT) neurotransmission. Activation of 5HT‐1A postsynaptic receptors has been shown to stimulate the release of oxytocin in the central nervous system where it regulates aspects of mood and behavior. Using a drug...

Chronic Stress Enhances the Corticosterone Response and Neurotoxicity to +3,4-Methylenedioxymethamphetamine (MDMA): The Role of Ambient Temperature

Journal of Pharmacology and Experimental Therapeutics July 16, 2010 Bethann N. Johnson, Bryan K. Yamamoto 22 citations

Stress facilitates drug abuse by humans. In rodents, stress enhances the neurochemical, neuroendocrine, and behavioral responses to psychostimulants. Although chronic unpredictable stress (CUS) enhances the acute hyperthermic and long-term monoamine-depleting effects of the psychostimulant +3,4-methylenedioxymethamphetamine (MDMA), the roles of hyperthermia and corticosterone (CORT) in...

Acute toxicity of Psilocybe cubensis (Ear.) Sing., Strophariaceae, aqueous extract in mice

Revista Brasileira de Farmacognosia July 1, 2010 Thiago Berti Kirsten, Maria Martha Bernardi 7 citations

Psilocybe cubensis (Ear.) Sing., Strophariaceae, is a hallucinogen mushroom that has been used since the old times by humans, causing several psychotic effects. P. cubensis contains two tryptamine derivates: psilocybin and psilocin, agonists of the 5-HT2 receptor (serotonin). The main objective of this study was to investigate the acute toxicity effects of P. cubensis aqueous extract (PCAE)...

MDMA Toxicity and Pathological Consequences: A Review About Experimental Data and Autopsy Findings

Current Pharmaceutical Biotechnology June 27, 2010 Emanuela Turillazzi, Irene Riezzo, Margherita Neri et al. 43 citations

Studies conducted in humans or in animals explored the presence, nature and potential causes of 3,4-methylenedioxymethamphetamine (MDMA) toxicity. According to literature, there are four principal types of such serious toxicity: hepatic, cardiovascular, cerebral and hyperpyrexic. The molecular mechanisms involved in the genesis of these toxic effects are not yet fully clarified, but the...

Neurotoxicity of Ecstasy (MDMA): An Overview

Current Pharmaceutical Biotechnology June 27, 2010 Sumit Sarkar, Larry Schmued 63 citations

"Ecstasy" (MDMA) is a powerful hallucinogenic drug which has raised concern worldwide because of its high abuse liability. A plethora of studies have demonstrated that MDMA has the potential to induce neurotoxicity both in human and laboratory animals. Although research on MDMA has been carried out by many different laboratories, the mechanism underlying MDMA induced toxicity has not been fully...

Evidence that MDMA (‘ecstasy’) increases cannabinoid CB2 receptor expression in microglial cells: role in the neuroinflammatory response in rat brain

Journal of Neurochemistry January 12, 2010 Elisa Torres, María Dolores Gutiérrez‐lópez, Érika Borcel et al. 44 citations

J. Neurochem. (2010) 10.1111/j.1471‐4159.2010.06578.x Abstract 3,4‐Methylenedioxymethamphetamine (MDMA, ‘ecstasy’) produces selective long‐lasting serotonergic neurotoxicity in rats. The drug also produces acute hyperthermia which modulates the severity of the neurotoxic response. In addition, MDMA produces signs of neuroinflammation reflected as microglial activation and an increase in the...

MDMA pretreatment leads to mild chronic unpredictable stress-induced impairments in spatial learning.

Behavioral Neuroscience October 1, 2009 Jacobi I. Cunningham, Jamie Raudensky, John Tonkiss et al. 27 citations

3,4-Methylenedioxymethamphetamine (MDMA) is a drug of abuse worldwide and a selective serotonin (5-HT) neurotoxin. An important factor in the risk of drug abuse and relapse is stress. Although multiple parallels exist between MDMA abuse and stress, including effects on 5-HTergic neurotransmission, few studies have investigated the consequences of combined exposure to MDMA and chronic stress....

DOI: 10.1037/a0016716 (opens in new tab) MDMA Serotonergic Serotonin transporter Hippocampus +3