Evidence map›Paper›PMID 33355845›Full record

ArticleAsian spine journal2021

Development of a Unique Mouse Intervertebral Disc Degeneration Model Using a Simple Novel Tool.

Manish Baldia, Sunithi Mani, Noel Walter, Sanjay Kumar, Alok Srivastava, Krishna Prabhu

Open access · diamondAbstract read
In one paragraph

Article in Asian spine journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

4 citing papers in PubMed, 7 citations in OpenAlex.

  1. Article
  2. Article
  3. Frontiers in pain research (Lausanne, Switzerland) · 2022
    Review
  4. 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

6 authors at 3 institutions in 1 country.

Manish BaldiaDepartment of Neurological Sciences, Christian Medical College, Vellore, India.
Sunithi ManiDepartment of Radiodiagnosis, Christian Medical College, Vellore, India.
Noel WalterDepartment of Pathology, Christian Medical College, Vellore, India.
Sanjay KumarCentre for Stem Cell Research (a Unit of inStem, Bengaluru), Christian Medical College Campus, Vellore, India.
Alok SrivastavaCentre for Stem Cell Research (a Unit of inStem, Bengaluru), Christian Medical College Campus, Vellore, India.
Krishna PrabhuDepartment of Neurological Sciences, Christian Medical College, Vellore, India.
Christian Medical College & Hospital · INChristian Medical College · INInstitute for Stem Cell Biology and Regenerative Medicine · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designAnimal case control study. PURPOSE: To create a simple, reproducible disc degeneration model for mouse coccygeal vertebrae. OVERVIEW OF LITERATURE: Back pain due to disc degeneration is probably the most common problem encountered in neurosurgical practice. An easily reproducible animal model for disc degeneration will help in understanding its pathophysiology, and serve as a platform for examining various therapeutic options.

methodsA total of 18 mice were divided into injured (n=12) and non-injured (n=6) groups. The disc height index (DHI%) at coccygeal 4-5 level was measured by computed tomography (CT) scan for all mice. Coccygeal 4-5 discs of the injury group were injured using a 32G needle fixed to a novel tool and confirmed by CT. The non-injury group underwent no procedure. DHI% was measured by CT at 2-, 4-, and 6-week post-injury, and all mice tails were sectioned for histopathology grading of disc degeneration at the respective time intervals.

resultsThe injured group showed significant variation in DHI% at 2, 4, and 6 weeks, whereas there was no change in the noninjured group. Histopathologic evaluation with Safranin O stain showed a worsening of the disc degeneration score at 2, 4, and 6 weeks in the injured group, but in the non-injured group there was no change. Percutaneous needle injury technique with our novel tool provided 100% accuracy and uniform degeneration.

conclusionsA simple, easily reproducible mouse model for disc degeneration was created using a simple, cost-effective, novel tool and technique, its advantage being high precision and user friendly.

Indexed as

Coccygeal discDisc height indexHistology gradingMouse disc degeneration modelNeedle injury

Identifiers

PMID33355845
PMCPMC8377218
OpenAlexW3117088812

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.