Evidence map›Paper›PMID 18386092›Full record

ArticleLasers in medical science2009

Red light of 647 nm enhances osteogenic differentiation in mesenchymal stem cells.

Hyung Keun Kim, Ji Hyun Kim, Azlina Amir Abbas, Dong-Ok Kim, Sung-Jun Park, Jae Yoon Chung, Eun Kyoo Song, Taek Rim Yoon

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In one paragraph

Article in Lasers in medical science, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing 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

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

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  19. The Effects of Photobiomodulation on MC3T3-E1 Cells via 630 nm and 810 nm Light-Emitting Diode.Medical science monitor : international medical journal of experimental and clinical research · 2019
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Hyung Keun KimDepartment Orthopaedics, Chonnam National University Hwasun Hospital, 160 Ilsimri, Hwasun-eup, Hwasun-gun, Jeonnam, South Korea.
Ji Hyun Kim
Azlina Amir Abbas
Dong-Ok Kim
Sung-Jun Park
Jae Yoon Chung
Eun Kyoo Song
Taek Rim Yoon

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The use of light for medical treatment has been studied previously. In this study, we examined the effect of light from a red light-emitting diode on osteogenic differentiation of mouse mesenchymal stem cells (D1 cells) which were cultured in the presence of osteogenic differentiation medium (ODM) for 3 days, then exposed to a red light-emitting diode (LED) light of 647 nm wavelength once for 10 s, 30 s or 90 s with radiation energies of 0.093 J, 0.279 J and 0.836 J, respectively. D1 cells in the presence of ODM differentiated into osteoblasts, and this process was enhanced on exposure to LED light in ODM medium. This effect was confirmed by increased Alizarin red staining, higher alkaline phosphatase (ALP) activity, higher mRNA expressions of osteocalcin, collagen type I, osteopontin and Runt-related transcription factor2 (Runx2), and higher levels by reverse transcriptase-polymerase chain reaction (RT-PCR) and by increased immunofluorescence staining against cluster of differentiation 44 (CD44) by immunofluorescence microscopy, confocal microscopy and flow cytometric analysis. These data suggest that osteogenic differentiation of mesenchymal stem cells (MSCs) in ODM is enhanced by LED light exposure.

Indexed as

Lasers, SemiconductorPhototherapyAnimalsCalcification, PhysiologicCell Culture TechniquesCell DifferentiationMesenchymal Stem CellsMiceOsteoblastsOsteogenesis

Identifiers

What OpenQuestion holds

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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.