Evidence map›Paper›PMID 28874973›Full record

ArticleAsian spine journal2017

Inhibiting Vascular Endothelial Growth Factor in Injured Intervertebral Discs Attenuates Pain-Related Neuropeptide Expression in Dorsal Root Ganglia in Rats.

Jun Sato, Kazuhide Inage, Masayuki Miyagi, Yoshihiro Sakuma, Kazuyo Yamauchi, Masao Koda, Takeo Furuya, Junichi Nakamura, Miyako Suzuki, Go Kubota and 13 more

Open access · diamondAbstract read
In one paragraph

Article in Asian spine journal, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Review
  6. Updates on Pathophysiology of Discogenic Back Pain.Journal of clinical medicine · 2023
    Review
  7. Article
  8. 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

23 authors at 5 institutions in 1 country.

Jun SatoDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Kazuhide InageDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Masayuki MiyagiDepartment of Orthopedic Surgery, Kitasato University Hospital, Tokyo, Japan.
Yoshihiro SakumaDepartment of Orthopedic Surgery, National Hospital Organization Chiba Medical Center, Chiba, Japan.
Kazuyo YamauchiDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Masao KodaDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Takeo FuruyaDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Junichi NakamuraDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Miyako SuzukiDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Go KubotaDepartment of Orthopedic Surgery, Eastern Chiba Medical Center, Chiba, Japan.
Yasuhiro OikawaDepartment of Orthopedic Surgery, Chiba Children's Hospital, Chiba, Japan.
Takeshi SainohDepartment of Orthopedic Surgery, Sainou Hospital, Toyama, Japan.
Kazuki FujimotoDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Yasuhiro ShigaDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Koki AbeDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Hirohito KanamotoDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Masahiro InoueDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Hideyuki KinoshitaDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Masaki NorimotoDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Tomotaka UmimuraDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Kazuhisa TakahashiDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Seiji OhtoriDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Sumihisa OritaDepartment of Orthopedic Surgery, Chiba University Graduate School of Medicine, Chiba, Japan.
Chiba University · JPChiba Hospital · JPKitasato Institute Hospital · JPTeikyo University Chiba Medical Center · JPToyama City Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designAn experimental animal study. PURPOSE: To evaluate effects of anti-vascular endothelial growth factor (VEGF) on the content and distribution of the calcitonin gene-related peptide (CGRP) in the dorsal ganglia in a rat model. OVERVIEW OF LITERATURE: Increased expression of VEGF in degenerative disc disease increases the levels of inflammatory cytokines and nerve ingrowth into the damaged discs. In animal models, increased levels of VEGF can persist for up to 2 weeks after an injury.

methodsThrough abdominal surgery, the dorsal root ganglia (DRG) innervating L5/L6 intervertebral disc were labeled (FluoroGold neurotracer) in 24, 8-week old Sprague Dawley rats. The rats were randomly allocated to three groups of eight rats each. The anti-VEGF group underwent L5/6 intervertebral disc puncture using a 26-gauge needle, intradiscal injection of 33.3 µg of the pegaptanib sodium, a VEGF165 aptamer. The control-puncture group underwent disc puncture and intradiscal injection of 10 µL saline solution, and the sham-surgery group underwent labeling but no disc puncture. Two rats in each group were sacrificed on postoperative days 1, 7, 14, and 28 after surgery. L1-L6 DRGs were harvested, sectioned, and immunostained to detect the content and distribution of CGRP.

resultsCompared with the control, the percentage of CGRP-positive cells was lower in the anti-VEGF group (

conclusionsDecreasing CGRP-positive cells using anti-VEGF therapy provides fundamental evidence for a possible therapeutic role of anti-VEGF in patients with discogenic lower back pain.

Indexed as

Back painIntervertebral discsVascular endothelial growth factor

Identifiers

PMID28874973
PMCPMC5573849
OpenAlexW2747563225

What OpenQuestion holds

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LicenceCC BY-NC
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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.