Evidence map›Paper›PMID 17454670›Full record

Trial reportMicrocirculation (New York, N.Y. : 1994)

Noninvasive measure of microvascular nitric oxide function in humans using very low-frequency cutaneous laser Doppler flow spectra.

Julian M Stewart, Indu Taneja, Michael S Goligorsky, Marvin S Medow

Abstract readClinical Trial
In one paragraph

Trial report in Microcirculation (New York, N.Y. : 1994). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

11 citing papers in PubMed, 44 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Vasomotion analysis of speed resolved perfusion, oxygen saturation, red blood cell tissue fraction, and vessel diameter: Novel microvascular perspectives.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2022
    Article
  6. Article
  7. Article
  8. Article
  9. Evolution of cardiorespiratory interactions with age.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2013
    Article
  10. Article
  11. 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

4 authors at 1 institution in 1 country.

Julian M StewartNew York Medical College, Valhalla, New York, USA. stewart@nymc.edu
Indu Taneja
Michael S Goligorsky
Marvin S Medow
New York Medical College · US

Funding

Local Vasoconstriction in Postural Tachycardia SyndromeR01HL074873 · NHLBI · NEW YORK MEDICAL COLLEGE · PI STEWART, JULIAN M · 2004 to 2013
$3.4M
Detecting Endothelial Dysfunction in Renal FailureR21DK071647 · NIDDK · NEW YORK MEDICAL COLLEGE · PI STEWART, JULIAN M · 2006 to 2007
$426k
NHLBI NIH HHS R01 HL074873NHLBI NIH HHS R01HL074873NIDDK NIH HHS R21 DK071647NIDDK NIH HHS R21DK071647
6 · The paper itself

Abstract

objectiveWhile higher frequency oscillations (0.021-0.6 Hz) in cutaneous blood flow measured by laser Doppler flowmetry (LDF) relate to oscillations in blood pressure and sympathetic nerve activity, very low-frequency oscillations (VLF, 0.0095-0.021 Hz) do not. The authors investigated whether VLF LDF power is nitric oxide (NO) specific.

methodsLDF combined with intradermal microdialysis was used in the calves of 22 healthy volunteers aged 19-27 years. LDF power spectral analysis was performed by windowed fast Fourier transform. The authors tested whether the NO synthesis inhibitor nitro-l-arginine (NLA) produced selective decreases in VLF power before and after stimulation with acetylcholine.

resultsNLA alone did not alter total power but selectively reduced VLF power by approximately 50%. LDF and spectral power increased markedly across all spectra with acetylcholine. This increase was blunted by NLA, which selectively reduced VLF power by approximately 50%.

conclusionsThe data suggest that VLF oscillations in the laser Doppler signal are NO dependent, increase with cholinergic stimulation, and have potential as a noninvasive marker for NO-dependent microvascular reactivity.

Indexed as

Laser-Doppler FlowmetryAcetylcholineAdultBlood PressureEnzyme InhibitorsFemaleHumansMaleNitric OxideNitroarginineSkinSympathetic Nervous SystemVasodilator AgentsAcetylcholineEnzyme InhibitorsNitric OxideNitroarginineVasodilator Agents

Identifiers

PMID17454670
PMCPMC4513357
OpenAlexW2117369669

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.