Evidence map›Paper›PMID 23316299›Full record

ArticleJournal of the American Heart Association2012

Arterial retention of remnant lipoproteins ex vivo is increased in insulin resistance because of increased arterial biglycan and production of cholesterol-rich atherogenic particles that can be improved by ezetimibe in the JCR:LA-cp rat.

Rabban Mangat, Samantha Warnakula, Faye Borthwick, Zahra Hassanali, Richard R E Uwiera, James C Russell, Christopher I Cheeseman, Donna F Vine, Spencer D Proctor

Open access · goldFull text read
In one paragraph

Article in Journal of the American Heart Association, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 29% 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

12 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
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  4. Review
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  8. Article
  9. Review
  10. Diabetes Mellitus and Its Implications in Aortic Stenosis Patients.International journal of molecular sciences · 2021
    Review
  11. A role for proteoglycans in vascular disease.Matrix biology : journal of the International Society for Matrix Biology · 2018
    Review
  12. Review
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

9 authors at 1 institution in 1 country.

Rabban MangatMetabolic and Cardiovascular Diseases Laboratory, University of Alberta, Edmonton, Alberta, Canada.
Samantha Warnakula
Faye Borthwick
Zahra Hassanali
Richard R E Uwiera
James C Russell
Christopher I Cheeseman
Donna F Vine
Spencer D Proctor
University of Alberta · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLiterature supports the "response-to-retention" hypothesis-that during insulin resistance, impaired metabolism of remnant lipoproteins can contribute to accelerated cardiovascular disease progression. We used the JCR:LA-cp rat model of metabolic syndrome (MetS) to determine the extent of arterial accumulation of intestinal-derived remnants ex vivo and potential mechanisms that contribute to exacerbated cholesterol deposition in insulin resistance. METHODS AND

resultsArteries from control and MetS (insulin-resistant) JCR:LA-cp rats were perfused ex vivo with Cy5-labeled remnant lipoproteins, and their arterial retention was quantified by confocal microscopy. Arterial proteoglycans were isolated from control and MetS rats at 6, 12, and 32 weeks of age. There was a significant increase in the arterial retention of remnants and in associated cholesterol accumulation in MetS rats as compared to control rats. Mechanistic studies reveal that increased cholesterol deposition is a result of greater arterial biglycan content; longer glycosaminoglycans and increased production of cholesterol-rich intestinal-derived remnants, as compared to controls. Additionally, perfusion of vessels treated with ezetimibe, alone or in combination with simvastatin, with remnants isolated from the respective treatment group reduced ex vivo arterial retention of remnant-derived cholesterol ex vivo as compared to untreated controls.

conclusionsIncreased progression of atherosclerotic cardiovascular disease in MetS and type 2 diabetes mellitus might be explained in part by an increase in the arterial retention of cholesterol-rich remnants. Furthermore, ezetimibe alone or in combination treatment with simvastatin could be beneficial in ameliorating atherosclerotic cardiovascular disease in insulin resistance and MetS.

Indexed as

AnimalsAnticholesteremic AgentsArteriesAtherosclerosisAzetidinesBiglycanCholesterolEzetimibeInsulin ResistanceLipoproteinsMaleMetabolic SyndromeRatsSimvastatinAnticholesteremic AgentsAzetidinesBiglycanCholesterolEzetimibeLipoproteinsSimvastatinarterial remodelingbiglycanmetabolic syndrometriglyceride-rich remnant lipoproteins

Identifiers

PMID23316299
PMCPMC3541624
OpenAlexW2139676884

What OpenQuestion holds

Textfull text, public
LicenceCC BY
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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.