Evidence map›Paper›PMID 35090461›Full record

ArticleBiomedical engineering online2022

Intermittent parathyroid hormone treatment affects the bone structural parameters and mechanical strength of the femoral neck after ovariectomy-induced osteoporosis in rats.

Shun-Ping Wang, Ying-Ju Chen, Cheng-En Hsu, Yung-Cheng Chiu, Ming-Tzu Tsai, Jui-Ting Hsu

Open access · goldAbstract read
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Article in Biomedical engineering online, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.1field-weighted citation impact, top 27% 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

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3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 6 citations in OpenAlex.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors at 6 institutions in 1 country.

Shun-Ping WangDepartment of Orthopaedics, Taichung Veterans General Hospital, Taichung, 407, Taiwan.
Ying-Ju ChenBachelor Program in Health Care and Social Work for Indigenous Students, College of Humanities and Social Sciences, Providence University, Taichung, 433, Taiwan.
Cheng-En HsuDepartment of Orthopaedics, Taichung Veterans General Hospital, Taichung, 407, Taiwan.
Yung-Cheng ChiuSchool of Medicine, China Medical University, Taichung, 404, Taiwan.
Ming-Tzu TsaiDepartment of Biomedical Engineering, Hungkuang University, Taichung, 433, Taiwan.
Jui-Ting HsuSchool of Dentistry, College of Dentistry, China Medical University, 91 Hsueh-Shih Road, Taichung, 404, Taiwan. jthsu@mail.cmu.edu.tw.ORCID http://orcid.org/0000-0002-5533-2059
Asia University · TWChina Medical University · TWHungkuang University · TWNational Chung Hsing University · TWProvidence University · TWTunghai University · TW

Funding

china medical university CMU109-MF-117taichung veterans general hospital TCVGH-1105104B
6 · The paper itself

Abstract

backgroundMenopause-induced decline in estrogen levels in women is a main factor leading to osteoporosis. The objective of this study was to investigate the effect of intermittent parathyroid hormone (PTH) on bone structural parameters of the femoral neck in ovariectomized rats, in addition to correlations of maximum fracture force.

methodsFifteen female Wister rats were divided into three groups: (1) control group; (2) ovariectomized (OVX) group; and (3) OVX  +  PTH group. All rats were then killed and the femurs extracted for microcomputed tomography scanning to measure volumetric bone mineral density (vBMD) and bone structural parameters of the femoral neck. Furthermore, the fracture forces of femoral neck were measured using a material testing system.

resultsCompared with the control and OVX  +  PTH groups, the OVX group had significantly lower aBMD, bone parameter, and mechanical strength values. A comparison between OVX and OVX  +  PTH groups indicated that PTH treatment increased several bone parameters. However, the OVX  +  PTH groups did not significantly differ with the control group with respect to the bone structural parameters, except for trabecular bone thickness of cancellous bone, which was greater. In addition, among the bone structural parameters, the CSA and BSI of cortical bone were significantly correlated with the maximum fracture force of the femoral neck, with correlations of, respectively, 0.682 (p  = 0.005) and 0.700 (p  = 0.004).

conclusionIntermittent PTH helped treat ovariectomy-induced osteoporosis of cancellous bone and cortical bone in the femoral necks of rats. The ability of the femoral neck to resist fracture was highly correlated with the two parameters, namely cross-sectional area (CSA) and bone strength index (=  vBMD  ×  CSA), of cortical bone in the femoral neck and was less correlated with aBMD or other bone structural parameters.

Indexed as

Femur NeckOsteoporosisAnimalsFemaleHumansOvariectomyParathyroid HormoneRatsRats, Sprague-DawleyRats, WistarX-Ray MicrotomographyParathyroid HormoneCancellous boneCortical boneFemoral neckMicrocomputed tomographyParathyroid hormone

Identifiers

PMID35090461
PMCPMC8800236
OpenAlexW4210673711

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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.