Evidence map›Paper›PMID 31842639›Full record

ArticleThe Journal of international medical research2020

Therapeutic effect and mechanism of action of quercetin in a rat model of osteoarthritis.

Jun Zhang, Jing Yin, Daohong Zhao, Chaoran Wang, Yuhao Zhang, Yingsong Wang, Tao Li

Abstract read
In one paragraph

Article in The Journal of international medical research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  6. Mechanistic Exploration ofPharmaceuticals (Basel, Switzerland) · 2024
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  11. Natural medicine delivery from 3D printed bone substitutes.Journal of controlled release : official journal of the Controlled Release Society · 2024
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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

7 authors.

Jun ZhangDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.ORCID https://orcid.org/0000-0003-0285-6825
Jing YinDepartment of Digestive Medicine, The Third People's Hospital of Yunnan Province, Kunming, China.
Daohong ZhaoDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Chaoran WangDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Yuhao ZhangDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Yingsong WangDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.
Tao LiDepartment of Orthopedics, The Second Affiliated Hospital of Kunming Medical University, Kunming, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo study the therapeutic effect and mechanism of action of quercetin in a rat model of osteoarthritis (OA).

methodsThe OA rat model was established by intra-articular injection of papain. Changes in knee diameter, toe volume and histopathology were measured. Levels of interleukin (IL)-β and tumor necrosis factor (TNF)-α were assessed by ELISA. Relative expression of Toll-like receptor (TLR)-4 and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) was evaluated by western blotting.

resultsCompared with rats treated with papain alone, changes in knee diameter, toe volume and Makin' s score were less apparent in OA rats treated with quercetin. Levels of serum IL-1β and TNF-α were also reduced in quercetin-treated OA rats. Expression of TLR-4 and NF-κB was significantly suppressed in a dose-dependent manner in quercetin-treated OA rats.

conclusionQuercetin exhibited a therapeutic effect in OA rats, which may be related to inhibition of IL-1β and TNF-α production via the TLR-4/NF-κB pathway.

Indexed as

OsteoarthritisQuercetinAnimalsInterleukin-1betaNF-kappa BRatsSignal TransductionTumor Necrosis Factor-alphaInterleukin-1betaNF-kappa BQuercetinTumor Necrosis Factor-alphaIL-1βinflammationOsteoarthritisquercetinTLR-4/NF-κBTNF-α

Identifiers

PMID31842639
PMCPMC7607207

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.