Evidence map›Paper›PMID 25323897›Full record

ArticleYonsei medical journal2014

Increase of TRPV1-immunoreactivity in dorsal root ganglia neurons innervating the femur in a rat model of osteoporosis.

Kensuke Yoshino, Miyako Suzuki, Yuya Kawarai, Yoshihiro Sakuma, Gen Inoue, Sumihisa Orita, Kazuyo Yamauchi, Yasuchika Aoki, Tetsuhiro Ishikawa, Masayuki Miyagi and 10 more

Open access · goldAbstract read
In one paragraph

Article in Yonsei medical journal, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 32% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. The role of TRPV channels in osteoporosis.Molecular biology reports · 2022
    Review
  7. Article
  8. Article
  9. Neural Regulation of Bone and Bone Marrow.Cold Spring Harbor perspectives in medicine · 2018
    Review
  10. Article
  11. Article
  12. 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

20 authors at 1 institution in 1 country.

Kensuke YoshinoDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Miyako SuzukiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Yuya KawaraiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Yoshihiro SakumaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Gen InoueDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Sumihisa OritaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kazuyo YamauchiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Yasuchika AokiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Tetsuhiro IshikawaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Masayuki MiyagiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Hiroto KamodaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Gou KubotaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Yasuhiro OikawaDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kazuhide InageDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Takeshi SainohDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Jun SatoDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Junichi NakamuraDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Tomoaki ToyoneDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Kazuhisa TakahashiDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
Seiji OhtoriDepartment of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan. sohtori@faculty.chiba-u.jp.
Chiba University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTransient receptor potential vanilloid 1 (TRPV1) is a ligand-gated nonselective cation channel, which can be activated by capsaicin and other noxious stimuli. Recently, an association between bone pain and TRPV1 has been reported. However, the influence of osteoporosis on TRPV1 in the sensory system innervating the femur has not been reported. MATERIALS AND

methodsTRPV1-immunoreactive (ir) in dorsal root ganglia (DRG) neurons labeled with neurotracer [Fluoro-Gold (FG)] innervating the femurs of Sprague Dawley rats were examined in control, sham, and ovariectomized (OVX) rats. We evaluated osteoporosis in the femurs and compared the proportion of TRPV1-ir DRG neurons innervating femur between the 3 groups of rats.

resultsOVX rats showed osteoporotic cancellous bone in the femur. FG labeled neurons were distributed from L1 to L6 DRG, but there was no significant difference in the proportion of labeled neurons between the 3 groups (p>0.05). The proportions of FG labeled TRPV1-ir DRG neurons were 1.7%, 1.7%, and 2.8% of DRG neurons innervating the femur, in control, sham-operated, and OVX rats, respectively. The proportion of TRPV1-ir neurons in DRG innervating the femur in OVX rats was significantly higher than that in control and sham-operated rats (p<0.05).

conclusionUnder physiological conditions, DRG neurons innervating femurs in rats contain TRPV1. Osteoporosis increases the numbers of TRPV1-ir neurons in DRG innervating osteoporotic femurs in rats. These findings suggest that TRPV1 may have a role in sensory perception of osteoporotic femurs.

Indexed as

AnimalsFemaleFemurGanglia, SpinalLumbar VertebraeNeuronsOsteoporosisRatsRats, Sprague-DawleyStilbamidinesTRPV Cation Channels2-hydroxy-4,4'-diamidinostilbene, methanesulfonate saltStilbamidinesTrpv1 protein, ratTRPV Cation ChannelsfemurOsteoporosispaintransient receptor potential vanilloid 1

Identifiers

PMID25323897
PMCPMC4205700
OpenAlexW2151296925

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.