Evidence map›Paper›PMID 27218476›Full record

Trial reportAlcoholism, clinical and experimental research2016

Effect of Intravenous Ethanol on Capsaicin-Induced Hyperalgesia in Human Subjects.

Caroline A Arout, Albert C Perrino, Elizabeth Ralevski, Gregory Acampora, Julia Koretski, Diana Limoncelli, Jenelle Newcomb, Ismene L Petrakis

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Alcoholism, clinical and experimental research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Alcohol Use Disorder and Chronic Pain: An Overlooked Epidemic.The American journal of psychiatry · 2024
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
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

8 authors at 2 institutions in 1 country.

Caroline A AroutDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.ORCID 0000-0003-0444-6432
Albert C PerrinoDepartment of Anesthesiology, VA Connecticut Healthcare System, Yale University School of Medicine, West Haven, Connecticut.
Elizabeth RalevskiDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.
Gregory AcamporaDepartment of Psychiatry, Massachusetts General Hospital, Harvard Center for Addiction Medicine, Boston, Massachusetts.
Julia KoretskiDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.
Diana LimoncelliDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.
Jenelle NewcombDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.
Ismene L PetrakisDepartment of Psychiatry, Center for Translational Neuroscience of Alcoholism and VA Alcohol Research Center, Yale University School of Medicine, West Haven, Connecticut.
Yale University · USMassachusetts General Hospital · US

Funding

Yale Clinical and Translational Science Award (U Component)UL1TR001863 · NCATS · YALE UNIVERSITY · PI John H. Krystal, LUCILA OHNO-MACHADO · 2016 to 2026
$102.9M
Translational Technologies CoreP50AA012870 · NIAAA · YALE UNIVERSITY · PI Matthew J Girgenti · 2001 to 2026
$43.7M
Research Training Fellowship in Substance use and Addiction (RTFSA)T32DA007238 · NIDA · YALE UNIVERSITY · PI BRIAN D. KILUK, ISMENE L. PETRAKIS · 1988 to 2026
$5.7M
NCATS NIH HHS UL1 TR001863NIAAA NIH HHS P50 AA012870NIDA NIH HHS T32 DA007238
6 · The paper itself

Abstract

backgroundThe objective of this study was to assess ethanol's (EtOH's) effects on capsaicin-induced hyperalgesia in healthy participants. Specifically, we investigated the change in area of capsaicin-induced hyperalgesia following 3 interventions: intravenous EtOH at 2 targeted breath alcohol concentrations (BrAC), or placebo.

methodsEighteen participants participated in 3 test days in a randomized order. Each test day, participants received an intradermal capsaicin injection on the volar surface of the forearm, followed by either infusion of high concentration EtOH (targeted BrAC = 0.100 g/dl), low concentration EtOH (targeted BrAC = 0.040 g/dl), or placebo. The area of hyperalgesia was determined by von Frey technique at 2 time points, prior to EtOH infusion, and again when target BrAC was reached. The primary outcome was the percent change in the area of capsaicin-induced hyperalgesia. Additional outcome measures included the visual analogue scale of mood states (VAS), which was administered at each time point.

resultsThere was a marked 30% reduction in the area of capsaicin-induced hyperalgesia with infusion of a high concentration of EtOH (p < 0.05). Low concentration EtOH produced a 10% reduction in hyperalgesia area, although this finding did not reach significance. Further, participants reported significant feelings of euphoria and drowsiness at high concentrations of EtOH (p < 0.05), as measured by the VAS.

conclusionsIn a human model examining pain phenomena related to central sensitization, this study is the first to demonstrate that capsaicin-induced hyperalgesia is markedly attenuated by EtOH. The capsaicin experimental pain paradigm employed provides a novel approach to evaluate EtOH's effects on pain processing. The antihyperalgesic effects of EtOH observed have important clinical implications for the converging fields of substance abuse and pain medicine and may inform why patients with chronic pain often report alcohol use as a form of self-medication.

Indexed as

Administration, IntravenousAdultAffectBreath TestsCapsaicinDose-Response Relationship, DrugDouble-Blind MethodEthanolFemaleHumansHyperalgesiaMaleYoung AdultCapsaicinEthanolAnalgesiaCapsaicinEthanolHyperalgesiaPain

Identifiers

PMID27218476
PMCPMC4930397
OpenAlexW2398518809

What OpenQuestion holds

Textmetadata
LicenceTDM
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.