Evidence map›Paper›PMID 35378052›Full record

ArticleBioengineered2022

Ellagic acid attenuates interleukin-1β-induced oxidative stress and exerts protective effects on chondrocytes through the Kelch-like ECH-associated protein 1 (Keap1)/ Nuclear factor erythroid 2-related factor 2 (Nrf2) pathway.

Wenrun Zhu, Han Tang, Juncheng Li, Rui Miranda Guedes, Lu Cao, Changan Guo

Open access · goldAbstract read
In one paragraph

Article in Bioengineered, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 26 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

6 authors at 4 institutions in 2 countries.

Wenrun ZhuDepartment of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Han TangDepartment of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Juncheng LiDepartment of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Rui Miranda GuedesLABIOMEP, UMAI-INEGI, Faculty of Engineering of the University of Porto, Porto, Portugal.
Lu CaoDepartment of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Changan GuoDepartment of Orthopedic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Zhongshan Hospital · CNFudan University · CNSun Yat-sen University · CNUniversidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Osteoarthritis (OA) is the most prevalent type of degenerative joint disease, and its pathological progression is highly associated with oxidative stress. Natural antioxidants can attenuate oxidative stress and chondrocyte injury, suggesting that antioxidants have potential applications in the management of OA. Ellagic acid (EA), a natural polyphenol derived from fruits or nuts, exerts antioxidant and anti-inflammatory effects in diseases related to oxidative stress. Herein, we investigated the effects of EA on interleukin-1β (IL-1β)-induced oxidative stress and degeneration in C28/I2 human chondrocytes. EA efficiently suppressed IL-1β-induced oxidative stress and ameliorated oxidative stress-induced dysfunction of chondrocytes, as indicated by the promotion of cartilage matrix secretion. Moreover, EA remarkably suppressed cell apoptosis and senescence, and reduced the expression of proinflammatory factors and metalloproteinases, suggesting that EA could alleviate chondrocyte injury under oxidative stress. Mechanistically, EA upregulated the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) as well as its downstream targets NADPH quinone oxidoreductase 1 and heme oxygenase-1. ML385, a specific Keap1/Nrf2 pathway inhibitor, blocked the antioxidant and chondroprotective effects of EA. Our findings demonstrated that EA could attenuate oxidative stress and exert protective effects on chondrocytes by upregulating the Keap1/Nrf2 signaling pathway.

Indexed as

ChondrocytesNF-E2-Related Factor 2AntioxidantsEllagic AcidHumansInterleukin-1betaKelch-Like ECH-Associated Protein 1Oxidative StressAntioxidantsEllagic AcidInterleukin-1betaKEAP1 protein, humanKelch-Like ECH-Associated Protein 1NF-E2-Related Factor 2chondrocytesEllagic acidnrf2osteoarthritisoxidative stress

Identifiers

PMID35378052
PMCPMC9162011
OpenAlexW4223485504

What Socratic holds

Textmetadata
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 Socratic graph.