Evidence map›Paper›PMID 21937060›Full record

ArticleThe Journal of surgical research2011

Small intestinal submucosa seeded with intestinal smooth muscle cells in a rodent jejunal interposition model.

Harry H Qin, James C Y Dunn

Open access · greenAbstract read
In one paragraph

Article in The Journal of surgical research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
4.4field-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

18 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
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  8. Bioengineering the gut: future prospects of regenerative medicine.Nature reviews. Gastroenterology & hepatology · 2016
    Review
  9. Article
  10. Article
  11. Review
  12. Living scaffolds: surgical repair using scaffolds seeded with human adipose-derived stem cells.Hernia : the journal of hernias and abdominal wall surgery · 2016
    Article
  13. Article
  14. Article
  15. Article
  16. Review
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  18. 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

2 authors at 1 institution in 1 country.

Harry H QinDepartment of Surgery, University of California, Los Angeles, California, USA.
James C Y Dunn
University of California, Los Angeles · US

Funding

Intestinal Tissue EngineeringR01DK083319 · NIDDK · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI DUNN, JAMES C · 2010 to 2012
$998k
NIDDK NIH HHS R01 DK083319
6 · The paper itself

Abstract

backgroundSmall intestinal submucosa (SIS) is a porcine-derived, acellular, collagen-based matrix that has been tested without seeded smooth muscle cells (SMCs) for intestinal tissue engineering. We examined the expression patterns of contractile proteins of SIS with SMCs implanted in an in vivo rodent model. MATERIALS AND

methodsIntestinal SMCs were isolated from Lewis rat pups. Four-ply tubular SMCs-seeded SIS or blank SIS scaffolds were implanted in an adult rat jejunal interposition model. Recipients were sacrificed at 2, 4, and 8 wk following the implantation. The retrieved specimens were examined using antibodies against contractile proteins of SMCs.

resultsCultured intestinal SMCs expressed α-smooth muscle actin (α-SMA), calponin, and less smooth muscle myosin heavy chain (SM-MHC) in vitro. Cell-seeded SIS scaffolds contracted significantly over 8 wk of implantation but were comparable to SIS scaffolds without cell seeding. Implanted cell-seeded SIS scaffolds at 2 wk expressed extensive α-SMA, some calponin, and minimal SM-MHC. At 4 wk, α-SMA-expressing cells decreased significantly, whereas calponin or SM-MHC expressing cells were rarely detected. A small number of α-SMA-expressing cells were present at 8 wk, whereas more calponin or SM-MHC expressing cells emerged in proximity with the anastomotic interface.

conclusionsCell-seeded SIS contracted significantly after implantation, but the expressions of contractile proteins were present at the site of SIS interposition. No organized smooth muscle was formed at the site of implantation. A better scaffold design is needed to produce structured smooth muscle.

Indexed as

Tissue ScaffoldsActinsAnimalsAnimals, NewbornCalcium-Binding ProteinsCalponinsCells, CulturedExtracellular MatrixFemaleIntestinal MucosaJejunumMicrofilament ProteinsModels, AnimalMyocytes, Smooth MuscleMyosin Heavy ChainsPregnancyActinsCalcium-Binding ProteinsCalponinsMicrofilament ProteinsMyosin Heavy Chains

Identifiers

PMID21937060
PMCPMC3195903
OpenAlexW2059148585

What OpenQuestion holds

Textmetadata
LicenceTDM
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.