Evidence map›Paper›PMID 25185134›Full record

ArticleHypertension (Dallas, Tex. : 1979)2014

Role of peroxisome proliferator-activated receptor-γ in vascular muscle in the cerebral circulation.

T Michael De Silva, Mary L Modrick, Pimonrat Ketsawatsomkron, Cynthia Lynch, Yi Chu, Christopher J Pelham, Curt D Sigmund, Frank M Faraci

Abstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2014. 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
1.9field-weighted citation impact, top 14% 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, 27 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Microvascular Dysfunction and Cognitive Impairment.Cellular and molecular neurobiology · 2016
    Review
  16. Article
  17. Review
  18. Impacts of Alternative Splicing Events on the Differentiation of Adipocytes.International journal of molecular sciences · 2015
    Review
  19. 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

8 authors at 1 institution in 1 country.

T Michael De SilvaFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Mary L ModrickFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Pimonrat KetsawatsomkronFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Cynthia LynchFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Yi ChuFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Christopher J PelhamFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Curt D SigmundFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Frank M FaraciFrom the Department of Internal Medicine (T.M.D.S., M.L.M., C.L., Y.C., C.D.S., F.M.F.) and Department of Pharmacology (P.K., C.J.P., C.D.S., F.M.F.), Francois M. Abboud Cardiovascular Center, Carver College of Medicine, University of Iowa; and Iowa City Veterans Affairs Healthcare System (F.M.F.).
Veterans Health Administration · US

Funding

Role of the brain Renin-Angiotensin Sys. in Cardiovas and Metabolic RegulationP01HL084207 · NHLBI · UNIVERSITY OF IOWA · PI SIGMUND, CURT DANIEL · 2007 to 2022
$30.2M
Vascular Protection During HypertensionP01HL062984 · NHLBI · UNIVERSITY OF IOWA · PI LENTZ, STEVEN R · 2000 to 2015
$22.2M
Transgenic and knockout animalP01NS024621 · NINDS · UNIVERSITY OF IOWA · PI SANFORD, L PHILLIP · 1987 to 2012
$14.9M
SIGNIFICANCE OF ANGIOTENSINOGEN VARIANTS IN HYPERTENSIONR01HL061446 · NHLBI · UNIVERSITY OF IOWA · PI SIGMUND, CURT DANIEL · 1999 to 2013
$4.8M
Role of Enhancers Regulating Renin Gene ExpressionR37HL048058 · NHLBI · UNIVERSITY OF IOWA · PI SIGMUND, CURT DANIEL · 2006 to 2015
$4.3M
Regulation of Cerebral Blood Flow by Acid-Sensing Ion Channels (ASICs)R01HL113863 · NHLBI · UNIVERSITY OF IOWA · PI FARACI, FRANK M, WEMMIE, JOHN A · 2012 to 2016
$1.9M
TRANSGENIC STUDIES OF THE HUMAN RENIN-ANGIOTENSIN SYSTEMR01HL048058 · NHLBI · UNIVERSITY OF IOWA · PI SIGMUND, CURT DANIEL · 1993 to 2004
$1.8M
Role of PPAR-gamma in Cerebral EndotheliumI01BX001399 · VA · IOWA CITY VA MEDICAL CENTER · PI FARACI, FRANK M · 2013 to 2018
–
BLRD VA I01 BX001399NHLBI NIH HHS HL-113863NHLBI NIH HHS HL-48058NHLBI NIH HHS HL-61446NHLBI NIH HHS HL-62984NHLBI NIH HHS P01 HL062984NHLBI NIH HHS P01 HL084207NHLBI NIH HHS R01 HL048058NHLBI NIH HHS R01 HL061446NHLBI NIH HHS R01 HL113863NHLBI NIH HHS R37 HL048058NINDS NIH HHS NS-24621NINDS NIH HHS P01 NS024621
6 · The paper itself

Abstract

Although peroxisome proliferator-activated receptor-γ (PPARγ) is thought to play a protective role in the vasculature, its cell-specific effect, particularly in resistance vessels, is poorly defined. Nitric oxide (NO) plays a major role in vascular biology in the brain. We examined the hypothesis that selective interference with PPARγ in vascular muscle would impair NO-dependent responses and augment vasoconstrictor responses in the cerebral circulation. We studied mice expressing a dominant negative mutation in human PPARγ (P467L) under the control of the smooth muscle myosin heavy chain promoter (S-P467L). In S-P467L mice, dilator responses to exogenously applied or endogenously produced NO were greatly impaired in cerebral arteries in vitro and in small cerebral arterioles in vivo. Select NO-independent responses, including vasodilation to low concentrations of potassium, were also impaired in S-P467L mice. In contrast, increased expression of wild-type PPARγ in smooth muscle had little effect on vasomotor responses. Mechanisms underlying impairment of both NO-dependent and NO-independent vasodilator responses after interference with PPARγ involved Rho kinase with no apparent contribution by oxidative stress-related mechanisms. These findings support the concept that via effects on Rho kinase-dependent signaling, PPARγ in vascular muscle is a major determinant of vascular tone in resistance vessels and, in particular, NO-mediated signaling in cerebral arteries and brain microvessels. Considering the importance of NO and Rho kinase, these findings have implications for regulation of cerebral blood flow and the pathogenesis of large and small vessel disease in brain.

Indexed as

AnimalsArteriolesCerebrovascular CirculationFemaleHumansMaleMiceMice, Mutant StrainsMice, TransgenicMuscle, Smooth, VascularNitric OxidePPAR gammarho-Associated KinasesSignal TransductionVasodilationNitric OxidePPAR gammarho-Associated Kinasescerebral arteriesmicrocirculationnitric oxidesmall vessel disease

Identifiers

PMID25185134
PMCPMC4192060
OpenAlexW2142776639

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.