Evidence map›Paper›PMID 21602449›Full record

ArticleFASEB journal : official publication of the Federation of American Societies for Experimental Biology2011

Relaxin causes selective outward remodeling of brain parenchymal arterioles via activation of peroxisome proliferator-activated receptor-γ.

Siu-Lung Chan, Marilyn J Cipolla

Abstract read
In one paragraph

Article in FASEB journal : official publication of the Federation of American Societies for Experimental Biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
6.0field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Review
  3. The importance of comorbidities in ischemic stroke: Impact of hypertension on the cerebral circulation.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2018
    Review
  4. Article
  5. Targeting the Relaxin Pathway for Liver Disease Treatment.European medical journal. Hepatology · 2018
    Article
  6. Review
  7. Review
  8. Vascular actions of relaxin: nitric oxide and beyond.British journal of pharmacology · 2017
    Review
  9. Article
  10. Novel Anti-fibrotic Therapies.Frontiers in pharmacology · 2017
    Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Treatment for cerebral small vessel disease: effect of relaxin on the function and structure of cerebral parenchymal arterioles during hypertension.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2013
    Article
  20. 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.

Siu-Lung ChanDepartment of Neurology, University of Vermont, Burlington, VT 05401 USA.
Marilyn J Cipolla
University of Vermont · US

Funding

Impact of SAH on Parenchymal Arterioles and Neurovascular CouplingP01HL095488 · NHLBI · UNIVERSITY OF VERMONT & ST AGRIC COLLEGE · PI BONEV, ADRIAN · 2010 to 2014
$11.4M
The Role of the Blood Brain Barrier in Seizure During Pregnancy and PreeclampsiaR01NS045940 · NINDS · UNIVERSITY OF VERMONT &ST AGRIC COLLEGE · PI CIPOLLA, MARILYN J · 2003 to 2018
$4.6M
NHLBI NIH HHS P01 HL095488NINDS NIH HHS NS045940NINDS NIH HHS NS045940-05S1NINDS NIH HHS R01 NS045940
6 · The paper itself

Abstract

Brain parenchymal arterioles (PAs), but not pial arteries, undergo hypotrophic outward remodeling during pregnancy that involves peroxisome proliferator-activated receptor-γ (PPARγ) activation. Relaxin, a peptide hormone produced during pregnancy, is involved in systemic and renal artery remodeling and activates PPARγ in vitro. Thus, we hypothesized that relaxin is involved in the selective outward remodeling of PAs through a PPARγ-dependent mechanism. Nonpregnant rats were treated with relaxin (4 μg/h, osmotic minipump), relaxin plus PPARγ inhibitor GW9662 (10 mg/kg/d), or vehicle for 10 d. Vascular function and structure were compared in isolated and pressurized middle cerebral arteries (MCAs) and PAs taken from the same animals. Relaxin treatment increased serum relaxin to the level of pregnancy (54 ng/ml) and increased passive wall thickness (hypertrophy; 70 ± 5 vs. 54 ± 4 μm in vehicle; P<0.05) and inner diameter (outward remodeling; 10.6 ± 0.5 vs. 8.0 ± 0.6 μm in vehicle; P<0.05) in PAs, but not in MCAs. This hypertrophic outward remodeling was prevented by GW9662 that had diameters (57 ± 3 μm) and wall thickness (8.6 ± 1.0 μm) similar to vehicle. GW9662 also prevented relaxin-induced changes in PPARγ target gene expression. These results suggest that relaxin produced during pregnancy may be partly responsible for selective remodeling of PAs during pregnancy through a mechanism involving PPARγ

Indexed as

AnilidesAnimalsArteriolesBrainFemaleGene Expression RegulationMiddle Cerebral ArteryPPAR gammaPregnancyRatsRats, Sprague-DawleyReceptors, G-Protein-CoupledReceptors, PeptideRelaxin2-chloro-5-nitrobenzanilideAnilidesPPAR gammaReceptors, G-Protein-CoupledReceptors, PeptideRelaxinRxfp1 protein, rat

Identifiers

PMID21602449
PMCPMC3157692
OpenAlexW2171569159

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.