Evidence map›Paper›PMID 19420115›Full record

ArticleAmerican journal of physiology. Renal physiology2009

Novel use of ultrasound to examine regional blood flow in the mouse kidney.

Jennifer C Sullivan, Bin Wang, Erika I Boesen, Gerard D'Angelo, Jennifer S Pollock, David M Pollock

Abstract readComparative Study
In one paragraph

Article in American journal of physiology. Renal physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

28 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Observational
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  4. Review
  5. Article
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  9. Article
  10. Article
  11. Renal blood flow and oxygenation drive nephron progenitor differentiation.American journal of physiology. Renal physiology · 2014
    Article
  12. Article
  13. Polycystic kidneys have decreased vascular density: a micro-CT study.Microcirculation (New York, N.Y. : 1994) · 2013
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Doppler velocity measurements from large and small arteries of mice.American journal of physiology. Heart and circulatory physiology · 2011
    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

6 authors at 3 institutions in 2 countries.

Jennifer C SullivanVascular Biology Center and Department of Pharmacology, Medical College of Georgia, Augusta, Georgia 30912, USA. jsullivan@mail.mcg.edu
Bin Wang
Erika I Boesen
Gerard D'Angelo
Jennifer S Pollock
David M Pollock
Augusta University Health · USAugusta University · USLaboratoire d’immunologie intégrative du cancer · FR

Funding

Vascular and renal responses to stressP01HL069999 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI GEORGE, VARGHESE · 2002 to 2018
$31.1M
Vascular Rho-kinase Signaling in Angiotensin II hypertenP01HL074167 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI BRANDS, MICHAEL W. · 2004 to 2008
$10.5M
ENDOTHELIN REGULATION OF KIDNEY FUNCTIONR01HL064776 · NHLBI · MEDICAL COLLEGE OF GEORGIA (MCG) · PI POLLOCK, DAVID M · 2000 to 2007
$1.6M
Shared Instrumentation: Vevo 770 Ultrasound SystemS10RR024692 · NCRR · AUGUSTA UNIVERSITY · PI POLLOCK, DAVID M · 2009 to 2009
$145k
NCRR NIH HHS S10 RR024692NHLBI NIH HHS HL-64776NHLBI NIH HHS HL-74167NHLBI NIH HHS P01 HL069999NHLBI NIH HHS P01 HL074167NHLBI NIH HHS R01 HL064776
6 · The paper itself

Abstract

Conventional methods used for measuring regional renal blood flow, such as laser-Doppler flowmetry, are highly invasive, and each measurement is restricted to a discrete location. The aim of this study was to determine whether ultrasound imaging in conjunction with enhanced contrast agent (microbubbles; Vevo MicroMarker, VisualSonics) could provide a viable noninvasive alternative. This was achieved by determining changes in renal cortical and medullary rate of perfusion in response to a bolus injection of endothelin-1 (ET-1; 0.6, 1.0, or 2.0 nmol/kg) and comparing these responses to those observed in separate groups of mice with conventional laser-Doppler methods. Intravenous infusion of ET-1 in anesthetized male C57bl/6 mice resulted in a dose-dependent increase in mean arterial pressure and a dose-dependent decrease in total renal blood flow as measured by pulse-wave Doppler. ET-1 infusion resulted in a dose-dependent decrease in regional kidney perfusion as measured by both ultrasound with enhanced contrast agent and laser-Doppler measurements, verifying the use of ultrasound to measure regional kidney perfusion. Noted limitations of ultrasound imaging compared with laser-Doppler flowmetry included a lower degree of sensitivity to changes in tissue perfusion and the inability to assess rapid or transient changes in tissue perfusion. In conclusion, ultrasound represents an effective and noninvasive method for the measurement of relatively short-term, steady-state changes in regional blood flow in the mouse kidney.

Indexed as

AnimalsBlood PressureContrast MediaDose-Response Relationship, DrugEndothelin-1Heart RateKidneyLaser-Doppler FlowmetryMaleMiceMice, Inbred C57BLMicrobubblesRegional Blood FlowUltrasonography, Doppler, PulsedContrast MediaEndothelin-1

Identifiers

PMID19420115
PMCPMC2711705
OpenAlexW2131912110

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.