Evidence map›Paper›PMID 23773289›Full record

ArticleMolecular pain2013

An LPA species (18:1 LPA) plays key roles in the self-amplification of spinal LPA production in the peripheral neuropathic pain model.

Lin Ma, Jun Nagai, Jerold Chun, Hiroshi Ueda

Open access · goldAbstract read
In one paragraph

Article in Molecular pain, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

34 citing papers in PubMed, 60 citations in OpenAlex.

  1. Trial
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  9. Gintonin, aJournal of ginseng research · 2023
    Article
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  11. Elucidating the binding mechanism of LPA species and analogs in an LPAJournal of molecular graphics & modelling · 2022
    Article
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  16. Conditional Lpar1 gene targeting identifies cell types mediating neuropathic pain.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2020
    Article
  17. Review
  18. Article
  19. Effects of the LPAFrontiers in molecular neuroscience · 2019
    Article
  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

4 authors at 2 institutions in 2 countries.

Lin Ma
Jun Nagai
Jerold Chun
Hiroshi Ueda
Nagasaki University · JPScripps Research Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe previously reported that nerve injury-induced neuropathic pain is initiated by newly produced lysophosphatidic acid (LPA).

resultsIn this study, we developed a quantitative mass spectrometry for detecting LPA species by using Phos-tag. Following nerve injury, the levels of 18:1, 16:0 and 18:0 LPA in the spinal dorsal horn significantly increased at 3 h and declined at 6 h. Among them, 18:1 LPA level was the most abundant. In the same preparation, there were significant elevations in the activities of cytosolic phospholipase A2 (cPLA2) and calcium-independent phospholipase A2 (iPLA2), key enzymes for LPA synthesis, at 1 h, while there was no significant change in phospholipase A1 activity. Pharmacological studies revealed that NMDA and neurokinin 1 receptors, cPLA2, iPLA2 and microglial activation, as well as LPA1 and LPA3 receptors were all involved in the nerve injury-induced LPA production, and underlying cPLA2 and iPLA2 activations. In the cells expressing LPA1 or LPA3 receptor, the receptor-mediated calcium mobilization was most potent with 18:1 LPA, compared with 16:0 or 18:0 LPA. Moreover, the intrathecal injection of 18:1 LPA, but not 16:0 or 18:0 LPA, caused a spinal LPA production and neuropathic pain-like behavior.

conclusionThese results suggest that 18:1 LPA is the predominant ligand responsible for LPA1 and LPA3 receptors-mediated amplification of LPA production through microglial activation.

Indexed as

AnimalsLysophospholipidsMaleMiceNeuralgiaNeuronsPhospholipases A2, CytosolicPyridinesReceptors, Lysophosphatidic AcidSpectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization1,3-bis(bis(pyridin-2-ylmethyl)amino)propan-2-ollysophosphatidic acidLysophospholipidsPhospholipases A2, CytosolicPyridinesReceptors, Lysophosphatidic Acid

Identifiers

PMID23773289
PMCPMC3691926
OpenAlexW2150305257

What OpenQuestion holds

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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.