Skip to content

Serotonin: all studies

Page 324 of 400: studies 3,231 to 3,240 of 3,999, newest first. Back to the serotonin overview

Research

Adaptive Plasticity in the Hippocampus of Young Mice Intermittently Exposed to MDMA Could Be the Origin of Memory Deficits.

Molecular Neurobiology December 2016 Sonia Abad, J Camarasa, David Pubill et al.

(±)3,4-Methylenedioxymethamphetamine (MDMA) is a relatively selective dopaminergic neurotoxin in mice. This study was designed to evaluate whether MDMA exposure affects their recognition memory and hippocampal expression of plasticity markers. Mice were administered with increasing doses of MDMA once per week for 8 weeks (three times in 1 day, every 3 h) and killed 2 weeks (2w) or 3 months (3m)...

MDMA decreases glutamic acid decarboxylase (GAD) 67-immunoreactive neurons in the hippocampus and increases seizure susceptibility: Role for glutamate.

Neurotoxicology December 2016 Courtney L Huff, Rachel L Morano, James P Herman et al.

3,4-Methylenedioxy-methamphetamine (MDMA) is a unique psychostimulant that continues to be a popular drug of abuse. It has been well documented that MDMA reduces markers of 5-HT axon terminals in rodents, as well as humans. A loss of parvalbumin-immunoreactive (IR) interneurons in the hippocampus following MDMA treatment has only been documented recently. In the present study, we tested the...

Classical hallucinogens and neuroimaging: A systematic review of human studies: Hallucinogens and neuroimaging.

Neuroscience & Biobehavioral Reviews December 2016 Rafael G. Dos Santos, Flávia L. Osório, José Alexandre S. Crippa et al.

Serotonergic hallucinogens produce alterations of perceptions, mood, and cognition, and have anxiolytic, antidepressant, and antiaddictive properties. These drugs act as agonists of frontocortical 5-HT2A receptors, but the neural basis of their effects are not well understood. Thus, we conducted a systematic review of neuroimaging studies analyzing the effects of serotonergic hallucinogens in...

Ritanserin-sensitive receptors modulate the prosocial and the anxiolytic effect of MDMA derivatives, DOB and PMA, in zebrafish.

Behavioural Brain Research November 1, 2016 Luisa Ponzoni, Mariaelvina Sala, Daniela Braida

Little is known about the pharmacological effects of amphetamine derivatives. In the present study, the effect on social preference and anxiety-like behavior of 2,5-dimetoxy-4-bromo-amphetamine hydrobromide (DOB) and para-methoxyamphetamine (PMA), in comparison with 3,4 methylenedioxymethamphetamine (MDMA) was investigated in zebrafish, an emerging model to study emotional behavior in an...

DOI: 10.1016/j.bbr.2016.08.009 (opens in new tab) Full text (opens in new tab) Hallucinogens Liokght-dark Novel tank Social preference +1

Role of psilocybin in the treatment of depression

Therapeutic Advances in Psychopharmacology October 27, 2016 Ananya Mahapatra, Rishi Gupta 37 citations

Psilocybin is a naturally occurring alkaloid, pharmacologically similar to the classic hallucinogen lysergic acid diethylamide (LSD). Although primarily used as a recreational drug or an entheogen in particular cultural settings, recent population based studies have shown that it does not lead to serious physical or mental health problems or dependent use. In view of recent work demonstrating...

Neuronal reorganization in adult rats neonatally exposed to (±)-3,4-methylenedioxymethamphetamine

Toxicology Reports October 11, 2016 Michael T. Williams, Matthew R. Skelton, Ian D. Longacre et al. 3 citations

The abuse of methylenedioxymethamphetamine (MDMA) during pregnancy is of concern. MDMA treatment of rats during a period of brain growth analogous to late human gestation leads to neurochemical and behavioral changes. MDMA from postnatal day (P)11–20 in rats produces reductions in serotonin and deficits in spatial and route-based navigation. In this experiment we examined the impact of MDMA...

DOI: 10.1016/j.toxrep.2014.08.018 (opens in new tab) Full text (opens in new tab) Development Golgi–cox staining Dentate gyrus Entorhinal cortex

Psilocybin as an alternative medicine for patients suffering from depression

Psychiatria i Psychologia Kliniczna September 30, 2016 Karolina Dydak, Mariola Śliwińska‐mossoń, Halina Milnerowicz 2 citations

Psylocybina jest substancją psychodysleptyczną pochodzenia naturalnego, występuje w grzybach rodzaju Psilocybe. Psychodysleptyki są środkami psychoaktywnymi, które silnie wpływają na percepcję, nastrój i procesy poznawcze człowieka. Psychodeliczne działanie psylocybiny opiera się na pobudzaniu receptorów serotoninergicznych, co prowadzi do wzrostu stężenia serotoniny w mózgu oraz przyczynia się...

DOI: 10.15557/pipk.2016.0023 (opens in new tab) Psilocybin Depression economics Psychotherapist Hallucinogen

Australia should be initiating a psychedelic research program: What are the barriers?

Australian & New Zealand Journal of Psychiatry September 28, 2016 N. Strauss, Stephen Bright, Martin L Williams 10 citations

Australian & New Zealand Journal of Psychiatry, 50(11) A recent review in Pharmacological Reviews highlights that over the last decade, a renaissance has occurred in psychedelic drug research in North America and Europe as investigators at Johns Hopkins School of Medicine, University of California, Los Angeles (UCLA), New York University and Imperial College London have embarked on studies that...

Metabolomic signatures of drug response phenotypes for ketamine and esketamine in subjects with refractory major depressive disorder: new mechanistic insights for rapid acting antidepressants

Translational Psychiatry September 20, 2016 Daniel M. Rotroff, Daniel Corum, Alison A. Motsinger‐Reif et al. 99 citations

Ketamine, at sub-anesthetic doses, is reported to rapidly decrease depression symptoms in patients with treatment-resistant major depressive disorder (MDD). Many patients do not respond to currently available antidepressants, (for example, serotonin reuptake inhibitors), making ketamine and its enantiomer, esketamine, potentially attractive options for treatment-resistant MDD. Although...

Comparative effects of amphetamine-like psychostimulants on rat hippocampal cell genesis at different developmental ages.

Neurotoxicology September 2016 Rubén García‐cabrerizo, M Julia García-Fuster

The aim of this study was to compare the effects of amphetamine-like psychostimulant drugs (i.e., MDMA, methamphetamine, D-amphetamine) on rat hippocampal cell genesis at different developmental ages (i.e., early adolescence vs. young adulthood) to determine if there were periods of vulnerability to drug-induced brain changes. Although adolescence is a period of great vulnerability to the...