Evidence map›Paper›PMID 16140882›Full record

ArticleThe Journal of nutrition2005

Punica granatum L. extract inhibits IL-1beta-induced expression of matrix metalloproteinases by inhibiting the activation of MAP kinases and NF-kappaB in human chondrocytes in vitro.

Salahuddin Ahmed, Naizhen Wang, Bilal Bin Hafeez, Vinay K Cheruvu, Tariq M Haqqi

Abstract read
In one paragraph

Article in The Journal of nutrition, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

62 citing papers in PubMed, 176 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Review
  5. Review
  6. Article
  7. Article
  8. Comparative Chemical Analysis of EightAntioxidants (Basel, Switzerland) · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Inhibition effect ofInternational journal of medical sciences · 2021
    Article
  16. Systematic review of the effects of pomegranate (Health promotion perspectives · 2021
    Review
  17. Article
  18. Article
  19. Oxidative stress and inflammation in osteoarthritis pathogenesis: Role of polyphenols.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2020
    Review
  20. Article

2 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Salahuddin AhmedDivision of Rheumatic Diseases, Department of Medicine, Case Western University, Cleveland, OH 44106, USA.
Naizhen Wang
Bilal Bin Hafeez
Vinay K Cheruvu
Tariq M Haqqi
Case Western Reserve University · US

Funding

TRAINING PROGRAM IN MUSCULOSKELETAL RESEARCHT32AR007505 · NIAMS · CASE WESTERN RESERVE UNIVERSITY · PI TRIOLO, RONALD J · 1986 to 2023
$6.3M
PREVENTION OF CARTILAGE DEGRADATION BY GREEN TEAR01AR048782 · NIAMS · CASE WESTERN RESERVE UNIVERSITY · PI HAQQI, TARIQ M · 2002 to 2006
$1.4M
Induction Of Apoptosis in Osteosarcoma By Green TeaR21AT002258 · NCCIH · CASE WESTERN RESERVE UNIVERSITY · PI HAQQI, TARIQ M · 2004 to 2005
$446k
NCCIH NIH HHS AT-002258NCCIH NIH HHS R21 AT002258NIAMS NIH HHS AR-07505NIAMS NIH HHS AR-48782NIAMS NIH HHS R01 AR048782NIAMS NIH HHS T32 AR007505
6 · The paper itself

Abstract

Interleukin (IL)-1beta induces the expression of matrix metalloproteinases (MMPs) implicated in cartilage resorption and joint degradation in osteoarthritis (OA). Pomegranate fruit extract (PFE) was recently shown to exert anti-inflammatory effects in different disease models. However, no studies have been undertaken to investigate whether PFE constituents protect articular cartilage. In the present studies, OA chondrocytes or cartilage explants were pretreated with PFE and then stimulated with IL-1beta at different time points in vitro. The amounts of proteoglycan released were measured by a colorimetric assay. The expression of MMPs, phosphorylation of the inhibitor of kappaBalpha (IkappaBalpha) and mitogen-activated protein kinases (MAPKs) was determined by Western immunoblotting. Expression of mRNA was quantified by real-time PCR. MAPK enzyme activity was assayed by in vitro kinase assay. Activation of nuclear factor-kappaB (NF-kappaB) was determined by electrophoretic mobility shift assay. PFE inhibited the IL-1beta-induced proteoglycan breakdown in cartilage explants in vitro. At the cellular level, PFE (6.25-25 mg/L) inhibited the IL-1beta-induced expression of MMP-1, -3, and -13 protein in the medium (P < 0.05) and this was associated with the inhibition of mRNA expression. IL-1beta-induced phosphorylation of p38-MAPK, but not that of c-Jun-N-terminal kinase or extracellular regulated kinase, was most susceptible to inhibition by low doses of PFE, and the addition of PFE blocked the activity of p38-MAPK in a kinase activity assay. PFE also inhibited the IL-1beta-induced phosphorylation of IkappaBalpha and the DNA binding activity of the transcription factor NF-kappaB in OA chondrocytes. Taken together, these novel results indicate that PFE or compounds derived from it may inhibit cartilage degradation in OA and may also be a useful nutritive supplement for maintaining joint integrity and function.

Indexed as

Matrix Metalloproteinase InhibitorsCells, CulturedChondrocytesEnzyme ActivationHumansInterleukin-1LythraceaeMatrix MetalloproteinasesMitogen-Activated Protein KinasesNF-kappa BPlant ExtractsInterleukin-1Matrix Metalloproteinase InhibitorsMatrix MetalloproteinasesMitogen-Activated Protein KinasesNF-kappa BPlant Extracts

Identifiers

PMID16140882
PMCPMC1315308
OpenAlexW1903692460

What OpenQuestion holds

Textmetadata
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.