Evidence map›Paper›PMID 28467440›Full record

ArticlePloS one2017

Serum biomarkers in patients with ossification of the posterior longitudinal ligament (OPLL): Inflammation in OPLL.

Yoshiharu Kawaguchi, Masato Nakano, Taketoshi Yasuda, Shoji Seki, Kayo Suzuki, Yasuhito Yahara, Hiroto Makino, Isao Kitajima, Tomoatsu Kimura

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed, 2 pooled it
4.2field-weighted citation impact, top 6% 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

42 citing papers in PubMed, 2 syntheses or guidelines pooled it, 70 citations in OpenAlex.

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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

9 authors at 1 institution in 1 country.

Yoshiharu KawaguchiDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Masato NakanoDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Taketoshi YasudaDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Shoji SekiDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Kayo SuzukiDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Yasuhito YaharaDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Hiroto MakinoDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
Isao KitajimaDepartment of Clinical Laboratory Medicine, University of Toyama, Toyama, Japan.
Tomoatsu KimuraDepartment of Orthopaedic Surgery, University of Toyama, Toyama, Japan.
University of Toyama · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroudOssification of the posterior longitudinal ligament (OPLL) is characterized by replacement of ligamentous tissue by ectopic new bone formation. OPLL causes narrowing of the spinal canal, resulting in neurological impairment. However, the pathogenesis of OPLL has not been fully elucidated. We investigated whether inflammation occurs in OPLL or not using high-sensitivity CRP (hs-CRP) in a case-control study. METHODS AND

findingsThis study included 103 patients with OPLL in the patient group and 95 age- and sex-matched volunteers with degenerative spinal disease in the control group. Of the 103 OPLL patients, 88 patients who were available for more than 2 years follow-up were checked for OPLL progression. A blood sample was obtained and Hs-CRP, and other routine data, including total protein (TP), albumin (ALB), lactate dehydrogenase (LDH), alkaline phosphatase (ALP), glucose (Glu), calcium (Ca), inorganic phosphate (Pi), white blood cell count (WBC), hemoglobin (Hb) and platelet (PLT), were analyzed. The data were compared between the patients with OPLL and the controls. The severity of the ossified lesions in the whole spine were evaluated by the ossification index (OS index) in patients with OPLL. The data were also compared between the patients with OPLL progression (the progression group) and the patients without OPLL progression (the non-progression group). In the results, the mean hs-CRP in the OPLL group was higher than that in the controls. The Pi in the OPLL group was lower than that in the control group. A negative correlation was found between the Pi and the OS index. The mean hs-CRP in the progression group was higher than that in the non-progression group. There was a positive correlation between the average length of the OPLL progression per year and the hs-CRP.

conclusionsThe results may suggest the occurrence of local inflammation in OPLL and the inflammation might cause OPLL progression. These facts are important for understanding the pathology of OPLL.

Indexed as

AgedBiomarkersDisease ProgressionFemaleHumansInflammationMaleMiddle AgedOssification of Posterior Longitudinal LigamentBiomarkers

Identifiers

PMID28467440
PMCPMC5414934
OpenAlexW2611806947

What OpenQuestion holds

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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.