Evidence map›Paper›PMID 29462111›Full record

ArticleBehavioural pharmacology2018

Medication overuse headache following repeated morphine, but not [INCREMENT]9-tetrahydrocannabinol administration in the female rat.

Ram Kandasamy, Cole T Dawson, Tammy N Hilgendorf, Michael M Morgan

Open access · greenAbstract read
In one paragraph

Article in Behavioural pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Natural Products Derived from Cannabis sativa for Pain Management.Handbook of experimental pharmacology · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Behavioral and cognitive animal models in headache research.The journal of headache and pain · 2019
    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

4 authors at 3 institutions in 2 countries.

Ram KandasamyDepartment of Integrative Physiology and Neuroscience, Graduate Program in Neuroscience.
Cole T DawsonDepartment of Psychology, Washington State University Vancouver, Vancouver, Washington, USA.
Tammy N HilgendorfDepartment of Psychology, Washington State University Vancouver, Vancouver, Washington, USA.
Michael M MorganDepartment of Integrative Physiology and Neuroscience, Graduate Program in Neuroscience.
Washington State University Vancouver · USLaboratoire d’immunologie intégrative du cancer · FRWashington State University · US

Funding

POSTDOCTORAL TRAINING IN THE BIOLOGY OF DRUG ABUSET32DA007268 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI TRAYNOR, JOHN R. · 1991 to 2021
$6.7M
Pain suppressed wheel running in the ratR03NS095057 · NINDS · WASHINGTON STATE UNIVERSITY · PI MORGAN, MICHAEL M · 2016 to 2017
$151k
NIDA NIH HHS T32 DA007268NINDS NIH HHS R03 NS095057
6 · The paper itself

Abstract

The potential of [INCREMENT]-tetrahydrocannabinol (THC) as a treatment for migraine depends on antinociceptive efficacy with repeated administration. Although morphine has good antinociceptive efficacy, repeated administration causes medication overuse headache (MOH) - a condition in which the intensity/frequency of migraine increases. The present study compared the effect of repeated morphine or THC administration on the magnitude and duration of migraine-like pain induced by a microinjection of allyl isothiocyanate (AITC) onto the dura mater of female rats. Acute administration of THC or morphine prevented AITC-induced depression of wheel running. This antinociception was maintained in rats treated repeatedly with THC, but not following repeated administration of morphine. Moreover, repeated morphine, but not THC administration, extended the duration of AITC-induced depression of wheel running. These data indicate that tolerance and MOH develop rapidly to morphine administration. The lack of tolerance and MOH to THC indicates that THC may be an especially effective long-term treatment against migraine.

Indexed as

Analgesics, OpioidAnimalsDronabinolDrug ToleranceDura MaterFemaleHeadache Disorders, SecondaryInjections, IntraperitonealIsothiocyanatesMigraine DisordersModels, AnimalMorphineMotor ActivityPainPain MeasurementRatsallyl isothiocyanateAnalgesics, OpioidDronabinolIsothiocyanatesMorphine

Identifiers

PMID29462111
PMCPMC6035110
OpenAlexW2789885406

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.