Evidence map›Paper›PMID 21454251›Full record

ArticleAmerican journal of physiology. Renal physiology2011

MMP-9 gene deletion mitigates microvascular loss in a model of ischemic acute kidney injury.

So-Young Lee, Markus Hörbelt, Henry E Mang, Nicole L Knipe, Robert L Bacallao, Yoshikazu Sado, Timothy A Sutton

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Renal physiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
3.0field-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

36 citing papers in PubMed, 62 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Matrix metalloproteinases in kidney homeostasis and diseases: an update.American journal of physiology. Renal physiology · 2024
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Effect ofPhysiological genomics · 2019
    Article
  17. Review
  18. Article
  19. Review
  20. Effects of CoClExperimental and therapeutic medicine · 2018
    Article
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

7 authors at 4 institutions in 4 countries.

So-Young LeeDiv. of Nephrology/Dept. of Medicine, Indiana University School of Medicine, 950 West Walnut St., R-2, 202, Indianapolis, IN 46202, USA.
Markus Hörbelt
Henry E Mang
Nicole L Knipe
Robert L Bacallao
Yoshikazu Sado
Timothy A Sutton
Indiana University School of MedicineIndiana University – Purdue University Indianapolis · USShigei Medical Research Institute · JPUniversity of Duisburg-Essen · DE

Funding

Mechanisms of microvascular damage in acute kidney injuryR01DK077124 · NIDDK · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SUTTON, TIMOTHY ALAN · 2007 to 2011
$1.3M
NIDDK NIH HHS R01 DK077124PHS HHS 50141PHS HHS 77124PHS HHS 79312
6 · The paper itself

Abstract

Microvascular rarefaction following an episode of acute kidney injury (AKI) is associated with renal hypoxia and progression toward chronic kidney disease. The mechanisms contributing to microvascular rarefaction are not well-understood, although disruption in local angioregulatory substances is thought to contribute. Matrix metalloproteinase (MMP)-9 is an endopeptidase important in modifying the extracellular matrix (ECM) and remodeling the vasculature. We examined the role of MMP-9 gene deletion on microvascular rarefaction in a rodent model of ischemic AKI. MMP-9-null mice and background control (FVB/NJ) mice were subjected to bilateral renal artery clamping for 20 min followed by reperfusion for 14, 28, or 56 days. Serum creatinine level in MMP-9-null mice 24 h after injury [1.4 (SD 0.8) mg/dl] was not significantly different from FVB/NJ mice [1.5 (SD 0.6) mg/dl]. Four weeks after ischemic injury, FVB/NJ mice demonstrated a 30-40% loss of microvascular density compared with sham-operated (SO) mice. In contrast, microvascular density was not significantly different in the MMP-9-null mice at this time following injury compared with SO mice. FVB/NJ mice had a 50% decrease in tissue vascular endothelial growth factor (VEGF) 2 wk after ischemic insult compared with SO mice. A significant difference in VEGF was not observed in MMP-9-null mice compared with SO mice. There was no significant difference in the liberation of angioinhibitory fragments from the ECM between MMP-9-null mice and FVB/NJ mice following ischemic injury. In conclusion, MMP-9 deletion stabilizes microvascular density following ischemic AKI in part by preserving tissue VEGF levels.

Indexed as

Acute Kidney InjuryAnimalsBlotting, WesternCapillariesCollagenFibrosisFluorescent Antibody TechniqueImmunohistochemistryIschemiaKidneyMaleMatrix Metalloproteinase 9MiceMice, KnockoutMicroscopy, ConfocalPlatelet Endothelial Cell Adhesion Molecule-1CollagenMatrix Metalloproteinase 9Platelet Endothelial Cell Adhesion Molecule-1Vascular Endothelial Growth Factor A

Identifiers

PMID21454251
PMCPMC3129879
OpenAlexW2167862220

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.