Evidence map›Paper›PMID 31891118›Full record

ArticleJOR spine2019

Pulsed electromagnetic fields reduce acute inflammation in the injured rat-tail intervertebral disc.

Andrew K Chan, Xinyan Tang, Nikhil V Mummaneni, Dezba Coughlin, Ellen Liebenberg, Annie Ouyang, Stefan Dudli, Michael Lauricella, Nianli Zhang, Erik I Waldorff and 2 more

Open access · goldAbstract read
In one paragraph

Article in JOR spine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
1.7field-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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  5. Article
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  7. Article
  8. Intradiscal inflammatory stimulation induces spinal pain behavior and intervertebral disc degeneration in vivo.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  9. Article
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  13. Pulsed electromagnetic field therapy alters early healing in a rat model of rotator cuff injury and repair: Potential mechanisms.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Article
  14. Review
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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

12 authors at 2 institutions in 1 country.

Andrew K ChanDepartment of Neurological Surgery University of California San Francisco San Francisco California.ORCID https://orcid.org/0000-0002-9352-5281
Xinyan TangDepartment of Orthopaedic Surgery University of California San Francisco California.
Nikhil V MummaneniDepartment of Orthopaedic Surgery University of California San Francisco California.
Dezba CoughlinDepartment of Orthopaedic Surgery University of California San Francisco California.
Ellen LiebenbergDepartment of Orthopaedic Surgery University of California San Francisco California.
Annie OuyangDepartment of Orthopaedic Surgery University of California San Francisco California.
Stefan DudliDepartment of Orthopaedic Surgery University of California San Francisco California.ORCID https://orcid.org/0000-0001-7351-713X
Michael LauricellaDepartment of Orthopaedic Surgery University of California San Francisco California.
Nianli ZhangOrthofix Inc. Lewisville Texas.
Erik I WaldorffOrthofix Inc. Lewisville Texas.
James T RyabyOrthofix Inc. Lewisville Texas.
Jeffrey C LotzDepartment of Orthopaedic Surgery University of California San Francisco California.
University of California, San Francisco · USOrthofix (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Pro-inflammatory cytokines are recognized contributors to intervertebral disc (IVD) degeneration and discogenic pain. We have recently reported the anti-inflammatory effect of pulsed electromagnetic fields (PEMF) on IVD cells in vitro. Whether these potentially therapeutic effects are sufficiently potent to influence disc health in vivo has not been demonstrated. We report here the effect of PEMF on acute inflammation arising from a rat-tail IVD injury model. Disc degeneration was induced by percutaneously stabbing the Co6-7, Co7-8, and Co8-9 levels using a 20-gauge needle. Seventy-two (72) rats were divided into three groups: sham control, needle stab, needle stab+PEMF. Treated rats were exposed to PEMF immediately following surgery and for either 4 or 7 days (4 hr/d). Stab and PEMF effects were evaluated by measuring inflammatory cytokine gene expression (RT-PCR) and protein levels (ELISA assay), anabolic and catabolic gene expression (RT-PCR), and histologic changes. We observed in untreated animals that at day 7 after injury, inflammatory cytokines (interleukin [IL]-6, tumor necrosis factor α, and IL-1β) were significantly increased at both gene and protein levels (

Indexed as

degeneration modelinflammationneedle stabpulsed electromagnetic fieldsrat‐tail disc

Identifiers

PMID31891118
PMCPMC6920683
OpenAlexW2991986549

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.