Evidence map›Paper›PMID 31654128›Full record

ArticleZeitschrift fur Gerontologie und Geriatrie2020

Melatonin improves the osseointegration of hydroxyapatite-coated titanium implants in senile female rats.

Tao Sun, Jian Li, Hai-Lin Xing, Zhou-Shan Tao, Min Yang

Abstract read
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In one paragraph

Article in Zeitschrift fur Gerontologie und Geriatrie, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.6field-weighted citation impact, top 19% 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

10 citing papers in PubMed, 20 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

5 authors at 3 institutions in 1 country.

Tao SunDepartment of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China.
Jian LiDepartment of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China.
Hai-Lin XingDepartment of Orthopaedic Surgery, The Fifth Affiliated Hospital of Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Liandu District, Lishui City, Zhejiang, China.
Zhou-Shan TaoDepartment of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China. tzs19900327@126.com.
Min YangDepartment of Trauma Orthopedics, The First Affiliated Hospital of Wannan Medical College, Yijishan Hospital, No. 2, Zhe shan Xi Road, 241001, Wuhu, Anhui, China.
First Affiliated Hospital of Wannan Medical College · CNWenzhou Medical University · CNLishui Central Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The aim of this study was to confirm the effect of the systemic administration of melatonin on hydroxyapatite-coated titanium (HA-Ti) implants in senile osteopenic rats. For this study 24-month-old female Sprague-Dawley rats were used. The animals were randomly divided into two groups: a control group and a melatonin group and the bilateral femurs of all the rats received HA-Ti implants. Animals in the melatonin group received treatment with melatonin (30 mg/kg day). After a 12-week healing period, rats in the melatonin group revealed improved osseointegration compared to the control group, with the bone area ratio (BAR) and bone to implant contact (BIC) increased by 1.87-fold and 1.65-fold in histomorphometry, the quantitative results of implant osseointegration and peri-implant trabeculae, such as a higher bone volume per total volume (BV/TV), trabecular number (Tb.N), the mean connective density (Conn.D), trabecular thickness (Tb.Th), and a lower trabecular spacing (Tb.Sp) in micro-computed tomography (CT) evaluation and the maximum push-out force by 1.75-fold in push out tests. Additionally, compared with the control group, melatonin could significantly up-regulate the expression of the runt-related transcription factor 2 (Runx2), osteocalcin (OC) and osteoprotegerin (OPG) genes and down-regulate the expression of the RANKL gene. These findings suggest that systemic administration with melatonin is useful to improve the fixation of HA-coated implants even in osteopenic rats through promoting Runx2, OC and OPG gene expression and inhibiting RANKL gene expression.

Indexed as

DurapatiteMelatoninOsseointegrationTitaniumAnimalsFemaleRatsRats, Sprague-DawleyX-Ray MicrotomographyDurapatiteMelatoninTitaniumHydroxyapatiteMelatoninOsseointegrationOsteoporosisTitanium implants

Identifiers

PMID31654128
OpenAlexW2982264922

What OpenQuestion holds

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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.