Evidence map›Paper›PMID 22307671›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2012

Increased PAI-1 in females compared with males is protective for abdominal aortic aneurysm formation in a rodent model.

Paul D DiMusto, Guanyi Lu, Abhijit Ghosh, Karen J Roelofs, Gang Su, Yunge Zhao, Christine L Lau, Omar Sadiq, Brendan McEvoy, Adriana Laser and 5 more

Abstract readComparative Study
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Article
  2. Article
  3. Sex-specific systemic metabolic predictors of resistance to calorie restriction-induced weight loss in obese diversity outbred mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  4. Article
  5. Plasminogen Activator Inhibitor-1: Potential Inflammatory Marker in Late-life Depression.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2023
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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

15 authors at 2 institutions in 1 country.

Paul D DiMustoJobst Vascular Research Laboratory, Department of Surgery, University of Michigan, Ann Arbor, USA.
Guanyi Lu
Abhijit Ghosh
Karen J Roelofs
Gang Su
Yunge Zhao
Christine L Lau
Omar Sadiq
Brendan McEvoy
Adriana Laser
Jose A Diaz
Thomas W Wakefield
Peter K Henke
Jonathan L Eliason
Gilbert R Upchurch
University of Michigan–Ann Arbor · USUniversity of Virginia · US

Funding

University of Michigan Surgical Oncology Research Training ProgramT32CA009672 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI JACQUELINE SARA JERUSS, WEIPING ZOU · 1991 to 2026
$6.0M
Gender Differences in Experimental Aortic AneurysmsR01HL081629 · NHLBI · UNIVERSITY OF VIRGINIA · PI UPCHURCH, GILBERT RIVERS · 2007 to 2017
$4.1M
NCI NIH HHS T32 CA009672NCI NIH HHS T32 CA-009672-20NHLBI NIH HHS R01 HL-081629-01NHLBI NIH HHS R01 HL-081629-03S1
6 · The paper itself

Abstract

The serine proteases, along with their inhibitor plasmin activator inhibitor-1 (PAI-1), have been shown to play a role in abdominal aortic aneurysm (AAA) formation. The aim of this study is to determine if PAI-1 may be a protective factor for AAA formation and partially responsible for the gender difference observed in AAAs. Male and female wild-type (WT) C57BL/6 and PAI-1(-/-) mice 8-12 wk of age underwent aortic perfusion with porcine pancreatic elastase. Animals were harvested 14 days following perfusion and analyzed for phenotype, PAI-1 protein levels, and matrix metalloproteinase (MMP)-9 and -2 activity. WT males had an average increase in aortic diameter of 80%, whereas females only increased 32% (P < 0.001). PAI-1(-/-) males increased 204% and females 161%, significantly more than their WT counterparts (P < 0.001). Western blot revealed 61% higher PAI-1 protein levels in the WT females compared with the WT males (P = 0.01). Zymography revealed higher levels of pro-MMP-2 and active MMP-2 in the PAI-1(-/-) males and females compared with their WT counterparts. PAI-1(-/-) females had significantly higher serum plasmin levels compared with WT females (P = 0.003). In conclusion, WT female mice are protected from aneurysm formation and have higher levels of PAI-1 compared with males during experimental aneurysm formation. Additionally, both male and female PAI-1(-/-) animals develop significantly larger aneurysms than WT animals, correlating with higher pro- and active MMP-2 levels. These findings suggest that PAI-1 is protective for aneurysm formation in the elastase model of AAA and plays a role in the gender differences seen in AAA formation.

Indexed as

AnimalsAorta, AbdominalAortic Aneurysm, AbdominalBlotting, WesternDensitometryFemaleFibrinolysinImmunohistochemistryMacrophagesMaleMatrix Metalloproteinase 2Matrix Metalloproteinase 9MiceMice, KnockoutPancreatic ElastasePlasminogen Activator Inhibitor 1FibrinolysinMatrix Metalloproteinase 2Matrix Metalloproteinase 9Pancreatic ElastasePlasminogen Activator Inhibitor 1RNA, MessengerUrokinase-Type Plasminogen Activator

Identifiers

PMID22307671
PMCPMC3330791
OpenAlexW2001507610

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.