Evidence map›Paper›PMID 17515954›Full record

ArticleMolecular medicine (Cambridge, Mass.)

Blue laser light increases perfusion of a skin flap via release of nitric oxide from hemoglobin.

Rainer Mittermayr, Anatoly Osipov, Christina Piskernik, Susanne Haindl, Peter Dungel, Carina Weber, Yuri A Vladimirov, Heinz Redl, Andrey V Kozlov

Abstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Observational
  4. Review
  5. Article
  6. Blue Light in Dermatology.Life (Basel, Switzerland) · 2021
    Review
  7. Overview of Artificial Intelligence Applications in Chinese Medicine Therapy.Evidence-based complementary and alternative medicine : eCAM · 2021
    Review
  8. Article
  9. Computational Structural Biology ofFrontiers in oncology · 2018
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Yes, there is deqi sensation in laser acupuncture.Evidence-based complementary and alternative medicine : eCAM · 2013
    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

9 authors.

Rainer MittermayrLudwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Center, Vienna, Austria.
Anatoly Osipov
Christina Piskernik
Susanne Haindl
Peter Dungel
Carina Weber
Yuri A Vladimirov
Heinz Redl
Andrey V Kozlov

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

It has recently been shown that nitrosyl complexes of hemoglobin (NO-Hb) are sensitive to low-level blue laser irradiation, suggesting that laser irradiation can facilitate the release of biologically active nitric oxide (NO), which can affect tissue perfusion. The aim of this study was to evaluate the therapeutic value of blue laser irradiation for local tissue perfusion after surgical intervention. Blood was withdrawn from a rat, exposed to NO and infused back to the same rat or used for in vitro experiments. In vitro, an increase of NO-Hb levels (electron paramagnetic resonance spectroscopy) up to 15 microM in rat blood did not result in the release of detectable amounts of NO (NO selective electrode). Blue laser irradiation of NO-Hb in blood caused decomposition of NO-Hb complexes and release of free NO. Systemic infusion of NO-Hb in rats affected neither systemic circulation (mean arterial pressure) nor local tissue perfusion (Doppler blood flow imaging system). In contrast, a clear enhancement of local tissue perfusion was observed in epigastric flap when elevated NO-Hb levels in blood were combined with local He-Cd laser irradiation focused on the left epigastric artery. The enhancement of regional tissue perfusion was not accompanied by any detectable changes in systemic circulation. This study demonstrates that blue laser irradiation improves local tissue perfusion in a controlled manner stimulating NO release from NO-Hb complexes.

Indexed as

LightAnimalsElectron Spin Resonance SpectroscopyHemoglobinsKineticsLasersMaleNitric OxidePerfusionRatsRats, Sprague-DawleyRegional Blood FlowSurgical FlapsVasodilationHemoglobinsNitric Oxide

Identifiers

PMID17515954
PMCPMC1869628

What OpenQuestion holds

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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.