Evidence map›Paper›PMID 24325936›Full record

ArticleMolecular pain2013

Intrathecal leptin inhibits expression of the P2X2/3 receptors and alleviates neuropathic pain induced by chronic constriction sciatic nerve injury.

Xin Li, Lumei Kang, Guilin Li, Huihong Zeng, Lei Zhang, Xiang Ling, Hui Dong, Shangdong Liang, Hongping Chen

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 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
2.3field-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

22 citing papers in PubMed, 42 citations in OpenAlex.

  1. Trial
  2. Article
  3. Unveiling the Applications of Phytoconstituents in Neuropathic Pain.Central nervous system agents in medicinal chemistry · 2025
    Review
  4. Article
  5. Article
  6. Review
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  8. Review
  9. Article
  10. Article
  11. Effects ofEvidence-based complementary and alternative medicine : eCAM · 2020
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Association of Leptin with Body Pain in Women.Journal of women's health (2002) · 2016
    Article
  19. 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

9 authors at 2 institutions in 1 country.

Xin Li
Lumei Kang
Guilin Li
Huihong Zeng
Lei Zhang
Xiang Ling
Hui Dong
Shangdong LiangDepartment of Physiology, Medical College of Nanchang University, 603 Bayi Road, Nanchang, Jiangxi 330006, PR China. liangsd@hotmail.com.
Hongping Chen
Nanchang University · CNFirst Affiliated Hospital of Nanchang University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeptin, an adipocytokine produced mainly by white adipose tissue, has a broad role in the regulation of neuronal functions. Accumulating evidence has revealed that leptin plays an important role in influencing neuropathic pain, shown recently by the finding that chronic administration of leptin induced thermal hyperalgesia and mechanical allodynia in naïve rats. Chronic constriction sciatic nerve injury (CCI) is a well characterized model used for studying neuropathic pain. The present study was designed to investigate whether leptin plays a role in neuropathic pain in rats induced by CCI by examining particular pain behaviors.

resultsAfter sciatic nerve injury in rats, endogenous levels of leptin and leptin receptor (OB-Rb) were increased in a time dependent manner within the ipsilateral dorsal root ganglion (DRG). Intrathecal administration of leptin once daily for 6 days, beginning 7 days after CCI, alleviated neuropathic pain and decreased the expression of IL-6, TNFα, and the P2X2 and P2X3 receptors. Attenuation of endogenous OB-Rb in the DRG by intrathecal administration of OB-Rb antisense oligonucleotides did not change thermal hyperalgesia or mechanical allodynia induced by CCI.

conclusionsOur findings suggest that exogenous leptin can alleviate the chronic neuropathic pain caused by CCI. The leptin effect may be mediated by attenuated expression of IL-6, TNFα, and the P2X2 and P2X3 receptors in the DRG of CCI rats.

Indexed as

AnimalsLeptinMaleNeuralgiaPeripheral Nerve InjuriesRatsRats, Sprague-DawleyReceptors, Purinergic P2X2Receptors, Purinergic P2X3Sciatic NerveLeptinReceptors, Purinergic P2X2Receptors, Purinergic P2X3

Identifiers

PMID24325936
PMCPMC4029482
OpenAlexW2104675986

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LicenceCC BY
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Registered trials

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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.