Evidence map›Paper›PMID 27845197›Full record

ArticleThe journal of pain2017

Sustained Morphine Administration Induces TRPM8-Dependent Cold Hyperalgesia.

Kerui Gong, Luc Jasmin

Open access · greenAbstract read
In one paragraph

Article in The journal of pain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-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

18 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Navigating the Controversies: Role of TRPM Channels in Pain States.International journal of molecular sciences · 2024
    Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Determining 5HTFrontiers in neuroscience · 2021
    Article
  9. Mechanoactivation of NOX2-generated ROS elicits persistent TRPM8 CaProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Molecular mechanisms of cold pain.Neurobiology of pain (Cambridge, Mass.)
    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

2 authors at 1 institution in 1 country.

Kerui GongDepartment of Oral and Maxillofacial Surgery, University of California San Francisco, San Francisco, California. Electronic address: keruigong@gmail.com.
Luc JasminDepartment of Oral and Maxillofacial Surgery, University of California San Francisco, San Francisco, California. Electronic address: ljasmin@gmail.com.
University of California, San Francisco · US

Funding

Glutamatergic transmission within the sensory ganglionR21NS079897 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JASMIN, LUC · 2013 to 2014
$431k
NINDS NIH HHS R21 NS079897
6 · The paper itself

Abstract

It is not uncommon for patients chronically treated with opioids to exhibit opioid-induced hyperalgesia, and this has been widely reported clinically and experimentally. The molecular substrate for this hyperalgesia is multifaceted, and associated with a complex neural reorganization even in the periphery. For instance, we have recently shown that chronic morphine-induced heat hyperalgesia is associated with an increased expression of GluN2B containing N-methyl-D-aspartate receptors, as well as of the neuronal excitatory amino acid transporter 3/excitatory amino acid carrier 1, in small-diameter primary sensory neurons only. Cold allodynia is also a common complaint of patients chronically treated with opioids, yet its molecular mechanisms remain to be understood. Here we present evidence that the cold sensor TRPM8 channel is involved in opioid-induced hyperalgesia. After 7 days of morphine administration, we observed an upregulation of TRPM8 channels using patch clamp recording on sensory neurons and Western blot analysis on dorsal root ganglia. The selective TRPM8 antagonist RQ-00203078 blocked cold hyperalgesia in morphine-treated rats. Also, TRPM8 knockout mice failed to develop cold hyperalgesia after chronic administration of morphine. Our results show that chronic morphine upregulates TRPM8 channels, which is in contrast with the previous finding that acute morphine triggers TRPM8 internalization. PERSPECTIVE: Patients receiving chronic opioid are sensitive to cold. We show in mice and rats that sustained morphine administration induces cold hyperalgesia and an upregulation of TRPM8. Knockout or selectively blocking TRPM8 reduces morphine-induced cold hyperalgesia suggesting TRPM8 is regulated by opioids.

Indexed as

AnimalsBenzamidesCold TemperatureDisease Models, AnimalDrug Delivery SystemsGanglia, SpinalHyperalgesiaMaleMembrane PotentialsMiceMice, Inbred C57BLMice, KnockoutMorphineNarcoticsNeuronsPain ThresholdBenzamidesMorphineNarcotics(S)-4-(1-(5-chloro-2-(4-fluorophenyoxy) benzamido)ethyl) benzoic acidTRPM8 protein, mouseTRPM Cation Channels5°Ccold plateCold receptormentholpaw liftwhole cell recording

Identifiers

PMID27845197
PMCPMC5291755
OpenAlexW2555216969

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.