Evidence map›Paper›PMID 28993129›Full record

ArticleNeuropharmacology2018

Separating the agony from ecstasy: R(-)-3,4-methylenedioxymethamphetamine has prosocial and therapeutic-like effects without signs of neurotoxicity in mice.

Daniel W Curry, Matthew B Young, Andrew N Tran, Georges E Daoud, Leonard L Howell

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
2.4field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 48 citations in OpenAlex.

  1. Acute effects of R-MDMA, S-MDMA, and racemic MDMA in a randomized double-blind cross-over trial in healthy participants.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Trial
  2. Review
  3. Article
  4. 5-HTMolecular psychiatry · 2025
    Article
  5. Review
  6. Is the stereoisomer R-MDMA a safer version of MDMA?Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  7. Review
  8. Therapeutic mechanisms of psychedelics and entactogens.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Review
  9. Review
  10. Article
  11. Effects of a psychedelic 5-HT2A receptor agonist on anxiety-related behavior and fear processing in mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Hallucinogens in Mental Health: Preclinical and Clinical Studies on LSD, Psilocybin, MDMA, and Ketamine.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Review
  18. Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Daniel W CurryDivision of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Matthew B YoungDivision of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Andrew N TranDivision of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Georges E DaoudDivision of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
Leonard L HowellDivision of Neuropharmacology and Neurologic Diseases, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA; Department of Psychiatry and Behavioral Science, Emory University School of Medicine, Atlanta, GA 30322, USA. Electronic address: lhowell@emory.edu.
Emory University · US

Funding

Yerkes National Primate Research Center Role of type-I IFN in regulating COVID-19 induced inflammation and pathogenesisP51OD011132 · OD · EMORY UNIVERSITY · PI Joon Sup Lee · 2012 to 2026
$167.0M
IRACDA Fellowships in Research and Science Training (FIRST)K12GM000680 · NIGMS · EMORY UNIVERSITY · PI BROWN, LOU ANN S, MCCARTY, NAEL A · 2000 to 2024
$41.2M
Training Program in Neurobiology of Drug AbuseT32DA015040 · NIDA · EMORY UNIVERSITY · PI KUHAR, MICHAEL J · 2003 to 2012
$3.6M
Neuropharmacology of Abused Stimulants in Nonhuman PrimatesK05DA031246 · NIDA · EMORY UNIVERSITY · PI HOWELL, LEONARD L · 2012 to 2016
$619k
NIDA NIH HHS K05 DA031246NIDA NIH HHS T32 DA015040NIGMS NIH HHS K12 GM000680NIH HHS P51 OD011132
6 · The paper itself

Abstract

S,R(+/-)-3,4-methylenedioxymethamphetamine (SR-MDMA) is an amphetamine derivative with prosocial and putative therapeutic effects. Ongoing clinical trials are investigating it as a treatment for post-traumatic stress disorder (PTSD) and other conditions. However, its potential for adverse effects such as hyperthermia and neurotoxicity may limit its clinical viability. We investigated the hypothesis that one of the two enantiomers of SR-MDMA, R-MDMA, would retain the prosocial and therapeutic effects but with fewer adverse effects. Using male Swiss Webster and C57BL/6 mice, the prosocial effects of R-MDMA were measured using a social interaction test, and the therapeutic-like effects were assessed using a Pavlovian fear conditioning and extinction paradigm relevant to PTSD. Locomotor activity and body temperature were tracked after administration, and neurotoxicity was evaluated post-mortem. R-MDMA significantly increased murine social interaction and facilitated extinction of conditioned freezing. Yet, unlike racemic MDMA, it did not increase locomotor activity, produce signs of neurotoxicity, or increase body temperature. A key pharmacological difference between R-MDMA and racemic MDMA is that R-MDMA has much lower potency as a dopamine releaser. Pretreatment with a selective dopamine D1 receptor antagonist prevented SR-MDMA-induced hyperthermia, suggesting that differential dopamine signaling may explain some of the observed differences between the treatments. Together, these results indicate that the prosocial and therapeutic effects of SR-MDMA may be separable from the stimulant, thermogenic, and potential neurotoxic effects. To what extent these findings translate to humans will require further investigation, but these data suggest that R-MDMA could be a more viable therapeutic option for the treatment of PTSD and other disorders for which SR-MDMA is currently being investigated.

Indexed as

AnimalsBody TemperatureBrainConditioning, ClassicalDopamineDopamine Plasma Membrane Transport ProteinsExtinction, PsychologicalFearGlial Fibrillary Acidic ProteinHallucinogensInterpersonal RelationsLocomotionMaleMiceMice, Inbred C57BLNeurotoxicity SyndromesDopamineDopamine Plasma Membrane Transport ProteinsGlial Fibrillary Acidic ProteinHallucinogensN-Methyl-3,4-methylenedioxyamphetamineRacemases and EpimerasesSerotoninEnantiomersMDMANeurotoxicityProsocialPTSD

Identifiers

PMID28993129
PMCPMC5714650
OpenAlexW2762169497

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.