Evidence map›Paper›PMID 30408112›Full record

Trial reportPloS one2018

Lysophosphatidic acid is associated with neuropathic pain intensity in humans: An exploratory study.

Ken Kuwajima, Masahiko Sumitani, Makoto Kurano, Kuniyuki Kano, Masako Nishikawa, Baasanjav Uranbileg, Rikuhei Tsuchida, Toru Ogata, Junken Aoki, Yutaka Yatomi and 1 more

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.9field-weighted citation impact, top 9% 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

28 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Genetic Polymorphisms ofInternational journal of molecular sciences · 2023
    Article
  12. Frontiers in pharmacology · 2023
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Lysophospholipid Mediators in Health and Disease.Annual review of pathology · 2022
    Review
  18. Review
  19. Article
  20. The LPAInternational journal of molecular sciences · 2021
    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

11 authors at 3 institutions in 1 country.

Ken KuwajimaDepartment of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Masahiko SumitaniDepartment of Pain and Palliative Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-3662-8217
Makoto KuranoDepartment of Clinical Laboratory Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Kuniyuki KanoDepartment of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan.
Masako NishikawaDepartment of Clinical Laboratory Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Baasanjav UranbilegDepartment of Clinical Laboratory Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Rikuhei TsuchidaDepartment of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Toru OgataDepartment of Rehabilitation for Movement Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, Japan.
Junken AokiDepartment of Molecular and Cellular Biochemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi, Japan.
Yutaka YatomiDepartment of Clinical Laboratory Medicine, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
Yoshitsugu YamadaDepartment of Anesthesiology and Pain Relief Center, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan.
University of Tokyo Hospital · JPTohoku University · JPNational Rehabilitation Center for Persons with Disabilities · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The underlying mechanisms of neuropathic pain remain to be elucidated. Basic animal research has suggested that lysophosphatidic acids, which are bioactive lipids produced by autotaxin from lysophosphatidylcholine, may play key roles in the initiation and maintenance of neuropathic pain. Here, we investigated the clinical relevance of lysophosphatidic acids signaling on neuropathic pain in humans. Eighteen patients who had been diagnosed with neuropathic pain with varied etiologies participated in the study. Cerebrospinal fluid samples were obtained by lumbar puncture and the concentrations of 12 species of lysophosphatidic acids and lysophosphatidylcholine, autotaxin, and the phosphorylated neurofilament heavy subunit were measured. Pain symptoms were assessed using an 11-point numeric rating scale and the Neuropathic Pain Symptom Inventory regarding intensity and descriptive dimensions of neuropathic pain. The total lysophosphatidic acids were significantly associated with both pain intensity and symptoms. 18:1 and 20:4 lysophosphatidic acids in particular demonstrated the most correlations with dimensions of pain symptoms. Autotaxin and the phosphorylated neurofilament heavy subunit showed no association with pain symptoms. In conclusions, lysophosphatidic acids were significantly associated with pain symptoms in neuropathic pain patients. These results suggest that lysophosphatidic acids signaling might be a potential therapeutic target for neuropathic pain.

Indexed as

Pain ManagementAdultAgedAged, 80 and overFemaleHumansLysophospholipase DLysophospholipidsMaleMiddle AgedNeuralgiaPhosphoric Diester Hydrolaseslysophosphatidic acidLysophospholipase DLysophospholipidsPhosphoric Diester Hydrolases

Identifiers

PMID30408112
PMCPMC6224112
OpenAlexW2900222741

What OpenQuestion holds

Textmetadata
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.