Evidence map›Paper›PMID 22581309›Full record

ArticleInflammation research : official journal of the European Histamine Research Society ... [et al.]2012

Carrageenan-induced transient inflammation in a rabbit knee model: molecular changes consistent with an early osteoarthritis phenotype.

Yamini Achari, Carol R Reno, Cyril B Frank, David A Hart

Abstract read
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In one paragraph

Article in Inflammation research : official journal of the European Histamine Research Society ... [et al.], 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
1.2field-weighted citation impact, top 21% 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

3 citing papers in PubMed, 11 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

4 authors at 2 institutions in 1 country.

Yamini AchariFaculty of Medicine, Health Sciences Centre, McCaig Institute for Bone and Joint Health, Calgary, AB, Canada.
Carol R Reno
Cyril B Frank
David A Hart
Health Sciences Centre · CAAlberta Bone and Joint Health Institute · CA

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

objectiveInflammation following a knee injury is one of the factors associated with initiation of cartilage degeneration leading to osteoarthritis (OA). The hypothesis tested was that inflammation results in elevated expression of proteinases implicated in OA.

methodsMature female rabbits received a single carrageenan injection to the right hind knee and the left knee served as the control. Five animals were killed at time points of 1, 2 and 4 weeks. The synovium and cartilage from both knees were collected and analysed for specific mRNA levels.

resultsInterleukin (IL)-1β and IL-6 mRNA levels peaked at 2 weeks and returned to normal levels in tissues by 4 weeks post-carrageenan treatment. Matrix metalloproteinase (MMP)-13, MMP-1, MMP-3 and cathepsin K followed the trend set by the inflammatory cytokines. Both synovium and cartilage tissues exhibited similar patterns of molecular expression, with cartilage from the tibial plateau responding more strongly than the femoral condyles.

conclusionsThe acute inflammatory milieu controls the transient expression of many degradative proteinases in the knee. However, a single acute exposure to inflammation in the rabbit knee is insufficient to create a chronic inflammatory environment and other complementary factors, such as persistent mechanical instability and/or injury, may contribute to the establishment of OA.

Indexed as

AnimalsCarrageenanCathepsin KDisease Models, AnimalFemaleInflammationInterleukin-1betaInterleukin-6Matrix MetalloproteinasesOsteoarthritis, KneePhenotypeRabbitsRNA, MessengerCarrageenanCathepsin KInterleukin-1betaInterleukin-6Matrix MetalloproteinasesRNA, Messenger

Identifiers

PMID22581309
OpenAlexW2074935260

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.