Evidence map›Paper›PMID 19729608›Full record

ArticleArteriosclerosis, thrombosis, and vascular biology2009

Smooth muscle LDL receptor-related protein-1 inactivation reduces vascular reactivity and promotes injury-induced neointima formation.

Joshua E Basford, Zachary W Q Moore, Li Zhou, Joachim Herz, David Y Hui

Abstract readComparative Study
In one paragraph

Article in Arteriosclerosis, thrombosis, and vascular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
0.6field-weighted citation impact, top 27% 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

32 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
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  4. Tale of 2 Receptors.Arteriosclerosis, thrombosis, and vascular biology · 2025
    Article
  5. Circulation research · 2024
    Article
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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

5 authors at 1 institution in 1 country.

Joshua E BasfordDepartment of Pathology and Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH 45237, USA.
Zachary W Q Moore
Li Zhou
Joachim Herz
David Y Hui
The University of Texas Southwestern Medical Center · US

Funding

Role of Lipoprotein Receptors in Diet-induced Obesity and DiabetesR01DK074932 · NIDDK · UNIVERSITY OF CINCINNATI · PI HUI, DAVID YIU-KWAN · 2007 to 2019
$4.4M
Metabolism of the VLDL receptor and ApoE receptor 2R37HL063762 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI HERZ, JOACHIM J · 2010 to 2019
$4.0M
APOLIPOPROTEIN E--IMPACT ON VASCULAR CELL FUNCTIONSR01HL061332 · NHLBI · UNIVERSITY OF CINCINNATI · PI HUI, DAVID Y · 1999 to 2006
$2.6M
NHLBI NIH HHS HL61332NHLBI NIH HHS R01 HL061332NHLBI NIH HHS R37 HL063762NIDDK NIH HHS DK74932NIDDK NIH HHS R01 DK074932
6 · The paper itself

Abstract

objectiveDefective smooth muscle expression of LDL receptor-related protein-1 (Lrp1) increases atherosclerosis in hypercholesterolemic mice. This study explored the importance of smooth muscle Lrp1 expression under normolipidemic conditions. METHODS AND

resultsSmooth muscle cells isolated from control (smLrp1(+/+)) and smooth muscle-specific Lrp1 knockout (smLrp1(-/-)) mice were characterized based on morphology, smooth muscle marker protein expression levels, and growth rates in vitro. Vascular functions were assessed by aortic constrictive response to agonist stimulation in situ and neointimal hyperplasia to carotid arterial injury in vivo. The smLrp1(-/-) smooth muscle cells displayed reduced alpha-actin and calponin expression and an accelerated growth rate attribtuable to sustained phosphorylation of platelet-derived growth factor receptor (PRGFR) and protein kinase B/Akt. Vasoconstrictive response to agonist stimulation was impaired in aortic rings isolated from smLrp1(-/-) mice. Injury-induced neointimal hyperplasia was significantly increased in smLrp1(-/-) mice. The increase in neointima was associated with corresponding elevated activation of PDGFR signaling pathway.

conclusionsSmooth muscle expression of Lrp1 is important in maintaining normal vascular functions under normolipidemic conditions. The absence of Lrp1 expression results in greater smooth muscle cell proliferation, deficient contractile protein expression, impairment of vascular contractility, and promotion of denudation-induced neointimal hyperplasia.

Indexed as

Analysis of VarianceAnimalsBlotting, WesternCarotid Artery InjuriesCell ProliferationCells, CulturedDisease Models, AnimalImmunohistochemistryLow Density Lipoprotein Receptor-Related Protein-1MiceMice, Inbred C57BLMice, KnockoutMuscle, Smooth, VascularMyocytes, Smooth MusclePlatelet-Derived Growth FactorProbabilityLow Density Lipoprotein Receptor-Related Protein-1Platelet-Derived Growth FactorReceptors, LDL

Identifiers

PMID19729608
PMCPMC2766037
OpenAlexW2148921804

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.