Evidence map›Paper›PMID 20016098›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

Sustained morphine-induced sensitization and loss of diffuse noxious inhibitory controls in dura-sensitive medullary dorsal horn neurons.

Akiko Okada-Ogawa, Frank Porreca, Ian D Meng

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

41 citing papers in PubMed, 89 citations in OpenAlex.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Review
  7. Medication overuse headache: a review of current evidence and management strategies.Frontiers in pain research (Lausanne, Switzerland) · 2023
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. The fifth cranial nerve in headaches.The journal of headache and pain · 2020
    Review
  13. Article
  14. Article
  15. Article
  16. Descending Control Mechanisms and Chronic Pain.Current rheumatology reports · 2019
    Review
  17. Article
  18. Article
  19. Review
  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

3 authors at 3 institutions in 2 countries.

Akiko Okada-OgawaDepartment of Oral Diagnosis, School of Dentistry, Nihon University, Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
Frank Porreca
Ian D Meng
Surugadai Nihon University Hospital · JPUniversity of Arizona · USUniversity of New England · US

Funding

Chronic morphine-induced sensitization of trigeminal dura sensitive neuronsR01DA021193 · NIDA · UNIVERSITY OF NEW ENGLAND · PI MENG, IAN D · 2007 to 2010
$1.2M
Trigeminal Mechanisms of Cannabinoid AnalgesiaR01DA014548 · NIDA · UNIVERSITY OF NEW ENGLAND · PI MENG, IAN D · 2002 to 2005
$819k
Trigeminal Mechanisms of Cannabinoid AnalgesiaK02DA018408 · NIDA · UNIVERSITY OF NEW ENGLAND · PI MENG, IAN D · 2005 to 2009
$513k
NIDA NIH HHS K02 DA018408NIDA NIH HHS K02DA018408NIDA NIH HHS R01 DA014548NIDA NIH HHS R01DA014548NIDA NIH HHS R01 DA021193
6 · The paper itself

Abstract

Overuse of medications used to treat migraine headache can produce a chronic daily headache, termed medication overuse headache (MOH). Although "overuse" of opioids, triptans, and over-the-counter analgesics can all produce MOH, the neuronal mechanisms remain unknown. Headache pain is likely to be produced by stimulation of primary afferent neurons that innervate the intracranial vasculature and the resulting activation of medullary dorsal horn (MDH) neurons. The present study compared the receptive field properties of MDH dura-sensitive neurons in rats treated with morphine to those given vehicle. Animals were implanted with osmotic minipumps or pellets for sustained subcutaneous administration of morphine or vehicle 6-7 d before recording from dura-sensitive neurons. Electrical and mechanical activation thresholds from the dura were significantly lower in chronic morphine-treated animals when compared to vehicle controls. In addition, sustained morphine increased the cutaneous receptive field sizes. The presence of diffuse noxious inhibitory controls (DNICs) was examined by placing the tail in 55 degrees C water during concomitant noxious thermal stimulation of the cutaneous receptive field, usually located in the ophthalmic region. The DNIC stimulus produced significant inhibition of heat-evoked activity in vehicle- but not chronic morphine-treated animals. Inactivation of the rostral ventromedial medulla with 4% lidocaine reinstated DNICs in chronic morphine-treated animals. These results are consistent with studies demonstrating a loss of DNICs in patients that suffer from chronic daily headache and may partially explain why overuse of medication used to treat migraine can induce headaches.

Indexed as

Pain MeasurementAnimalsDelayed-Action PreparationsDura MaterMaleMedulla OblongataMorphineNeural InhibitionPosterior Horn CellsRatsRats, Sprague-DawleyDelayed-Action PreparationsMorphine

Identifiers

PMID20016098
PMCPMC3177943
OpenAlexW2135984999

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.