Evidence map›Paper›PMID 34359834›Full record

ArticleCells2021

Photobiomodulation with a 660-Nanometer Light-Emitting Diode Promotes Cell Proliferation in Astrocyte Culture.

Sung-Ryeong Yoon, Namgue Hong, Min-Young Lee, Jin-Chul Ahn

Abstract read
In one paragraph

Article in Cells, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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

19 citing papers in PubMed.

  1. Review
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  8. Review
  9. Photobiomodulation for Neurodegenerative Diseases: A Scoping Review.International journal of molecular sciences · 2024
    Article
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  11. Article
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  13. Review
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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

4 authors.

Sung-Ryeong YoonDepartment of Medical Laser, Graduate School of Medicine, Dankook University, Cheonan 31116, Korea.ORCID 0000-0001-5738-5560
Namgue HongMedical Laser Research Center, College of Medicine, Dankook University, Cheonan 31116, Korea.ORCID 0000-0002-9874-0749
Min-Young LeeDepartment of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University, Cheonan 31116, Korea.
Jin-Chul AhnDepartment of Medical Laser, Graduate School of Medicine, Dankook University, Cheonan 31116, Korea.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Astrocytes act as neural stem cells (NSCs) that have the potential to self-renew and differentiate into other neuronal cells. The protein expression of these astrocytes depends on the stage of differentiation, showing sequential expression of multiple proteins such as octamer-binding transcription factor 4 (Oct4), nestin, glial fibrillary acidic protein (GFAP), and aldehyde dehydrogenase 1 family member L1 (aldh1L1). Photobiomodulation (PBM) affects cell apoptosis, proliferation, migration, and adhesion. We hypothesized that astrocyte proliferation and differentiation would be modulated by PBM. We used an optimized astrocyte culture method and a 660-nanometer light-emitting diode (LED) to enhance the biological actions of many kinds of cells. We determined that the 660-nanometer LED promoted the biological actions of cultured astrocytes by increasing the reactive oxygen species levels. The overall viability of the cultured cells, which included various cells other than astrocytes, did not change after LED exposure; however, astrocyte-specific proliferation was observed by the increased co-expression of GFAP and bromodeoxyuridine (BrdU)/Ki67. Furthermore, the 660-nanometer LED provides evidence of differentiation, as shown by the decreased Oct4 and GFAP co-expression and increased nestin and aldh1L1 expression. These results demonstrate that a 660-nanometer LED can modify astrocyte proliferation, which suggests the efficacy of the therapeutic application of LED in various pathological states of the central nervous system.

Indexed as

AnimalsApoptosisAstrocytesBrainCell AdhesionCell DifferentiationCell MovementCell ProliferationCoculture TechniquesEmbryo, MammalianFormyltetrahydrofolate DehydrogenaseGene ExpressionGlial Fibrillary Acidic ProteinKi-67 AntigenLasers, SemiconductorLightFormyltetrahydrofolate DehydrogenaseGfap protein, ratGlial Fibrillary Acidic ProteinKi-67 AntigenMKI67 protein, humanNes protein, ratNestinOctamer Transcription Factor-3Oxidoreductases Acting on CH-NH Group DonorsPou5f1 protein, ratReactive Oxygen Speciesastrocytephotobiomodulationprimary cultureproliferation

Identifiers

PMID34359834
PMCPMC8307591

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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.