Evidence map›Paper›PMID 29970828›Full record

ArticleInternational journal of molecular sciences2018

Red (635 nm), Near-Infrared (808 nm) and Violet-Blue (405 nm) Photobiomodulation Potentiality on Human Osteoblasts and Mesenchymal Stromal Cells: A Morphological and Molecular In Vitro Study.

Alessia Tani, Flaminia Chellini, Marco Giannelli, Daniele Nosi, Sandra Zecchi-Orlandini, Chiara Sassoli

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 6 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

51 citing papers in PubMed, 6 syntheses or guidelines pooled it.

  1. Pooled it
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  3. The Role of Low-Level Laser Therapy in Bone Healing: Systematic Review.International journal of molecular sciences · 2023
    Pooled it
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  7. Photobiomodulation Therapy on Orthodontic Movement: Analysis of Preliminary Studies with a New Protocol.International journal of environmental research and public health · 2020
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  12. Shining a Light on Skeletal Muscle Regeneration: Red Photobiomodulation Boosts Myoblast Differentiation In Vitro.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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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.

Alessia TaniDepartment of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy. alessia.tani@unifi.it.
Flaminia ChelliniDepartment of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy. flaminia.chellini@unifi.it.
Marco GiannelliOdontostomatologic Laser Therapy Center, via dell' Olivuzzo 162, 50143 Florence, Italy. dott.giannellimarco@dada.it.ORCID 0000-0001-7507-4731
Daniele NosiDepartment of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy. daniele.nosi@unifi.it.
Sandra Zecchi-OrlandiniDepartment of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy. zecchi@unifi.it.
Chiara SassoliDepartment of Experimental and Clinical Medicine-Section of Anatomy and Histology, University of Florence, Largo Brambilla 3, 50134 Florence, Italy. chiara.sassoli@unifi.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Photobiomodulation (PBM) has been used for bone regenerative purposes in different fields of medicine and dentistry, but contradictory results demand a skeptical look for its potential benefits. This in vitro study compared PBM potentiality by red (635 ± 5 nm) or near-infrared (NIR, 808 ± 10 nm) diode lasers and violet-blue (405 ± 5 nm) light-emitting diode operating in a continuous wave with a 0.4 J/cm² energy density, on human osteoblast and mesenchymal stromal cell (hMSC) viability, proliferation, adhesion and osteogenic differentiation. PBM treatments did not alter viability (PI/Syto16 and MTS assays). Confocal immunofluorescence and RT-PCR analyses indicated that red PBM (i) on both cell types increased vinculin-rich clusters, osteogenic markers expression (Runx-2, alkaline phosphatase, osteopontin) and mineralized bone-like nodule structure deposition and (ii) on hMSCs induced stress fiber formation and upregulated the expression of proliferation marker Ki67. Interestingly, osteoblast responses to red light were mediated by Akt signaling activation, which seems to positively modulate reactive oxygen species levels. Violet-blue light-irradiated cells behaved essentially as untreated ones and NIR irradiated ones displayed modifications of cytoskeleton assembly, Runx-2 expression and mineralization pattern. Although within the limitations of an in vitro experimentation, this study may suggest PBM with 635 nm laser as potential effective option for promoting/improving bone regeneration.

Indexed as

LightCalcification, PhysiologicCell AdhesionCell DifferentiationCell LineCell ProliferationCell SurvivalHumansLasers, SemiconductorMesenchymal Stem CellsOsteoblastsOsteogenesisAkt signalingbone regenerationdiode laserlight emitting diode (LED)low level laser therapy (LLLT)mesenchymal stromal cellsosteoblastsostepontinphotobiomodulation (PBM)Runx-2

Identifiers

PMID29970828
PMCPMC6073131

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Registered trials

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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.