Evidence map›Paper›PMID 27279629›Full record

ArticleScientific reports2016

Oestrogen and parathyroid hormone alleviate lumbar intervertebral disc degeneration in ovariectomized rats and enhance Wnt/β-catenin pathway activity.

Haobo Jia, Jianxiong Ma, Jianwei Lv, Xinlong Ma, Weiguo Xu, Yang Yang, Aixian Tian, Ying Wang, Lei Sun, Liyan Xu and 2 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

21 citing papers in PubMed, 39 citations in OpenAlex.

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  10. A Recombinant Parathyroid Hormone-Related Peptide Locally Applied in Osteoporotic Bone Defect.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2023
    Article
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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.

Haobo JiaDepartment of Orthopedics Institute, Tianjin Hospital, 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
Jianxiong MaBiomechanics Labs of Orthopedic Research Institute, Tianjin Hospital Heping Branch, 122, MuNan Street, Heping District, Tianjin 300050, China.
Jianwei LvTianjin Medical University, No. 22, Qixiangtai Road, Heping District, Tianjin 300070, China.
Xinlong MaDepartment of Orthopedics Institute, Tianjin Hospital, 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
Weiguo XuDepartment of Orthopedics Institute, Tianjin Hospital, 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
Yang YangDepartment of Orthopedics Institute, Tianjin Hospital, 406, Jiefang Nan Street, Hexi District, Tianjin 300211, China.
Aixian TianBiomechanics Labs of Orthopedic Research Institute, Tianjin Hospital Heping Branch, 122, MuNan Street, Heping District, Tianjin 300050, China.
Ying WangBiomechanics Labs of Orthopedic Research Institute, Tianjin Hospital Heping Branch, 122, MuNan Street, Heping District, Tianjin 300050, China.
Lei SunBiomechanics Labs of Orthopedic Research Institute, Tianjin Hospital Heping Branch, 122, MuNan Street, Heping District, Tianjin 300050, China.
Liyan XuTianjin Medical University, No. 22, Qixiangtai Road, Heping District, Tianjin 300070, China.
Lin FuTianjin Medical University, No. 22, Qixiangtai Road, Heping District, Tianjin 300070, China.
Jie ZhaoTianjin Medical University, No. 22, Qixiangtai Road, Heping District, Tianjin 300070, China.
Tianjin Hospital · CNTianjin Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the mitigation effect and mechanism of oestrogen and PTH on disc degeneration in rats after ovariectomy, as well as on Wnt/β-catenin pathway activity, thirty 3-month-old rats were ovariectomized and divided into three groups. Ten additional rats were used as controls. Eight weeks later, the rats were administered oestrogen or PTH for 12 weeks, and then discs were collected for tests. Results showed that nucleus pulposus cells in the Sham group were mostly notochord cells, while in the OVX group, cells gradually developed into chondrocyte-like cells. Oestrogen or PTH could partly recover the notochord cell number. After ovariectomy, the endplate roughened and endplate porosity decreased. After oestrogen or PTH treatment, the smoothness and porosity of endplate recovered. Compared with the Sham group, Aggrecan, Col2a and Wnt/β-catenin pathway expression in OVX group decreased, and either oestrogen or PTH treatment improved their expression. The biomechanical properties of intervertebral disc significantly changed after ovariectomy, and oestrogen or PTH treatment partly recovered them. Disc degeneration occurred with low oestrogen, and the underlying mechanisms involve nutrition supply disorders, cell type changes and decreased Wnt/β-catenin pathway activity. Oestrogen and PTH can retard disc degeneration in OVX rats and enhance Wnt/β-catenin pathway activity in nucleus pulposus.

Indexed as

Wnt Signaling PathwayAggrecansAnimalsBiomechanical PhenomenaBone Density Conservation AgentsChondrocytesCollagen Type IIEstrogensFemaleHumansIntervertebral DiscIntervertebral Disc DegenerationLumbar VertebraeNucleus PulposusOvariectomyParathyroid HormoneAggrecansBone Density Conservation AgentsCOL2A1 protein, ratCollagen Type IIEstrogensParathyroid Hormone

Identifiers

PMID27279629
PMCPMC4899752
OpenAlexW2417221436

What OpenQuestion holds

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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.