Evidence map›Paper›PMID 31822925›Full record

Observational studyPsychopharmacology2020

Prospective examination of synthetic 5-methoxy-N,N-dimethyltryptamine inhalation: effects on salivary IL-6, cortisol levels, affect, and non-judgment.

Malin V Uthaug, Rafael Lancelotta, Attila Szabo, Alan K Davis, Jordi Riba, Johannes G Ramaekers

Erratum issuedOpen access · hybridAbstract readObservational Study
In one paragraph

Observational study in Psychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
11.4field-weighted citation impact, top 1% 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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 115 citations in OpenAlex.

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  19. Psychedelic medicine (New Rochelle, N.Y.) · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 3 countries.

Malin V UthaugDepartment of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands. malin.uthaug@maastrichtuniversity.nl.ORCID http://orcid.org/0000-0001-7903-1325
Rafael LancelottaInnate Path, Lakewood, CO, USA.
Attila SzaboNORMENT, Institute of Clinical Medicine, University of Oslo, Norway; Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
Alan K DavisCollege of Social Work, The Ohio State University, Columbus, OH, 43210, USA.
Jordi RibaDepartment of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands.
Johannes G RamaekersDepartment of Neuropsychology and Psychopharmacology, Faculty of Psychology and Neuroscience, Maastricht University, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands. j.ramaekers@maastrichtuniversity.nl.
Maastricht University · NLBehavioral Pharma (United States) · USOslo University Hospital · NO

Funding

HUMAN BEHAVIORAL PHARMACOLOGY OF SUBSTANCE ABUSET32DA007209 · NIDA · JOHNS HOPKINS UNIVERSITY · PI Eric C. Strain, Elise M Weerts · 1985 to 2026
$12.9M
NIDA NIH HHS T32 DA007209NIH HHS #T32DA07209
6 · The paper itself

Abstract

rationale5-methoxy-N,N-dimethyltryptamine is a psychotropic substance found in various plant and animal species and is synthetically produced. 5-methoxy-N,N-dimethyltryptamine is used in naturalistic settings for spiritual exploration, recreation, or to address negative affect and mood problems. However, scientific knowledge on the effects of 5-methoxy-N,N-dimethyltryptamine in humans is scarce.

objectivesThe first objective was to assess the effects of inhalation of vaporized synthetic 5-methoxy-N,N-dimethyltryptamine on neuroendocrine markers. The second objective was to assess effects of the substance on affect and mindfulness. In addition, we assessed whether ratings of subjective measures were associated with changes in stress biomarkers (i.e., cortisol) and immune response (i.e., IL-6, CRP, IL-1β), as well as the acute psychedelic experience.

methodsAssessments (baseline, immediately post-session, and 7-day follow-up) were made in 11 participants. Salivary samples were collected at baseline and post-session and analyzed by high-sensitivity enzyme-linked immunosorbent assay (ELISA).

results5-methoxy-N,N-dimethyltryptamine significantly increased cortisol levels and decreased IL-6 concentrations in saliva immediately post-session. These changes were not correlated to ratings of mental health or the psychedelic experience. Relative to baseline, ratings of non-judgment significantly increased, and ratings of depression decreased immediately post-session and at follow-up. Ratings of anxiety and stress decreased from baseline to 7-day follow-up. Participant ratings of the psychedelic experience correlated negatively with ratings of affect and positively with ratings of non-judgment.

conclusionInhalation of vaporized synthetic 5-methoxy-N,N-dimethyltryptamine produced significant changes in inflammatory markers, improved affect, and non-judgment in volunteers. Future research should examine the effect of 5-methoxy-N,N-dimethyltryptamineamine with healthy volunteers in a controlled laboratory setting.

Indexed as

AffectHallucinogensHydrocortisoneInterleukin-6JudgmentN,N-DimethyltryptamineAdministration, InhalationAdultFemaleHumansMaleMindfulnessProspective StudiesPsychotropic DrugsSalivaHallucinogensHydrocortisoneIL6 protein, humanInterleukin-6N,N-DimethyltryptaminePsychotropic Drugs5-methoxy-N,N-dimethyltryptamineAffectField studyImmunologyMindfulness

Identifiers

PMID31822925
PMCPMC7036074
OpenAlexW2996702784

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.