Evidence map›Paper›PMID 23443725›Full record

ArticleAmerican journal of hypertension2013

Low-dose angiotensin II infusion restores vascular function in cerebral arteries of high salt-fed rats by increasing copper/zinc superoxide dimutase expression.

Matthew J Durand, Julian H Lombard

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in American journal of hypertension, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 8% 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

31 citing papers in PubMed, 44 citations in OpenAlex.

  1. Trial
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  8. Review
  9. The damaging duo: Obesity and excess dietary salt contribute to hypertension and cardiovascular disease.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2023
    Review
  10. Article
  11. Review
  12. Review
  13. Review
  14. Review
  15. Article
  16. Article
  17. Impact of High Salt Diet on Cerebral Vascular Function and Stroke inInternational journal of molecular sciences · 2019
    Article
  18. Article
  19. The Influence of Dietary Salt Beyond Blood Pressure.Current hypertension reports · 2019
    Review
  20. 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

2 authors at 1 institution in 1 country.

Matthew J DurandDepartment of Physiology, Medical College of Wisconsin, Milwaukee, Wisconsin.
Julian H Lombard
Medical College of Wisconsin · US

Funding

Clincal and Translational Science AwardUL1TR000055 · NCATS · MEDICAL COLLEGE OF WISCONSIN · PI SHAKER, REZA NONE · 2012 to 2015
$11.3M
HIGH SALT DIET, ANGIOTENSIN II, AND MICROVESSEL DILATIONR01HL065289 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI LOMBARD, JULIAN H · 2000 to 2012
$3.8M
Role of ANG II in Maintaining Vascular Relaxation in Dahl S RatsR01HL092026 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI LOMBARD, JULIAN H · 2009 to 2010
$760k
High Salt Diet, Angiotensin II, and Microvessel DilationR56HL065289 · NHLBI · MEDICAL COLLEGE OF WISCONSIN · PI LOMBARD, JULIAN H · 2014 to 2014
$383k
NCATS NIH HHS 8UL1TR000055NCATS NIH HHS UL1 TR000055NHLBI NIH HHS HL-65289NHLBI NIH HHS HL-92026NHLBI NIH HHS R01 HL065289NHLBI NIH HHS R01 HL092026NHLBI NIH HHS R56 HL065289
6 · The paper itself

Abstract

backgroundThis study examined the vasoprotective role of circulating angiotensin II (ANG II) levels in the cerebral circulation of high salt (HS)-fed (SS.BN-(D13hmgc41-13hmgc23)/Mcwi) (Ren1-BN) congenic rats, which carry a normally functioning renin allele from the Brown Norway (BN) rat on the Dahl salt-sensitive genetic background.

methodsRen1-BN rats were placed on an HS (4.0% NaCl) diet for 3 days. The vasodilator response to acetylcholine (ACh; 10(-10) - 10(-6) mol/L) was assessed in isolated middle cerebral arteries (MCAs), and Western blots were performed to assess the expression of the antioxidant enzymes copper (Cu)/zinc (Zn) superoxide dismutase (SOD) and manganese (Mn) SOD in cerebral resistance vessels. A separate group of HS-fed animals were infused with either a subpressor dose of ANG II (100ng/kg/min) or saline vehicle via osmotic minipump for 3 days.

resultsHS diet eliminated acetylcholine (ACh)-induced dilation in the MCAs of the congenic rats. Western blot analysis of antioxidant enzymes showed that Cu/Zn SOD and Mn SOD expression were significantly reduced in the cerebral resistance arteries of the HS-fed rats compared with control animals fed a normal salt diet. Infusion of ANG II restored the vasodilator response to ACh in the MCAs and increased Cu/Zn SOD (but not Mn SOD) expression compared with saline-infused animals.

conclusionsThese results indicate that prevention of salt-induced ANG II suppression prevents vascular dysfunction in the cerebral circulation by preventing the downregulation of Cu/Zn SOD and vascular oxidant stress that normally occurs with HS diet.

Indexed as

Recovery of FunctionAngiotensin IIAnimalsBlood PressureBlotting, WesternCerebral ArteriesCopperDisease Models, AnimalHypertensionInfusions, IntravenousMaleRatsRats, Inbred BNSuperoxide DismutaseVasoconstrictor AgentsVasodilationAngiotensin IICopperSuperoxide DismutaseVasoconstrictor Agentsangiotensin IIantioxidant enzymesblood pressurecerebral circulationendothelial dysfunctionhigh salthypertension.

Identifiers

PMID23443725
PMCPMC3697069
OpenAlexW2087412385

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.