Evidence map›Paper›PMID 41154552›Full record

ArticleAntioxidants (Basel, Switzerland)2025

High-Power Laser Therapy Modulates Mitochondrial Function and Redox Balance Without Cytotoxicity: An In Vitro Study in BV-2 Microglial Cells.

Luana Barbosa Dias, Thiago De Marchi, Ana Paula Vargas Visentin, Juliana Maria Chaves, Catia Santos Branco, Fernando Joel Scariot, Matheus Marinho Aguiar Lino, Older Manoel Araújo-Silva, Amanda Lima Pereira, Heliodora Leão Casalechi and 3 more

Abstract read
In one paragraph

Article in Antioxidants (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

13 authors.

Luana Barbosa DiasLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.
Thiago De MarchiLaboratory of Health, Innovation and Therapeutic Technologies (LabHITT), Center of Excellence in Entrepreneurship and Innovation (CE2I), Uniftec University Center, Caxias do Sul 95012-669, RS, Brazil.ORCID 0000-0002-1669-9675
Ana Paula Vargas VisentinLaboratory of Health, Innovation and Therapeutic Technologies (LabHITT), Center of Excellence in Entrepreneurship and Innovation (CE2I), Uniftec University Center, Caxias do Sul 95012-669, RS, Brazil.
Juliana Maria ChavesLaboratory of Oxidative Stress and Antioxidants, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul 95070-560, RS, Brazil.
Catia Santos BrancoLaboratory of Oxidative Stress and Antioxidants, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul 95070-560, RS, Brazil.ORCID 0000-0003-3709-3004
Fernando Joel ScariotLaboratory of Oxidative Stress and Antioxidants, Institute of Biotechnology, University of Caxias do Sul, Caxias do Sul 95070-560, RS, Brazil.ORCID 0000-0003-0848-2772
Matheus Marinho Aguiar LinoLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.
Older Manoel Araújo-SilvaLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.ORCID 0009-0005-3734-2412
Amanda Lima PereiraLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.ORCID 0009-0003-2257-7273
Heliodora Leão CasalechiLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.
Douglas Scott JohnsonMulti Radiance Medical, Solon, OH 44139, USA.
Shaiane Silva TomazoniLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.ORCID 0000-0002-0822-4864
Ernesto Cesar Pinto Leal-JuniorLaboratory of Phototherapy and Innovative Technologies in Health (LaPIT), Postgraduate Program in Rehabilitation Sciences, Nove de Julho University, São Paulo 01504-001, SP, Brazil.ORCID 0000-0001-6393-7616

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent technological advances have sparked growing interest in high-power laser devices due to their capacity for energy delivery and therapeutic potential, especially in deeper tissues. This promising approach may be comparable to photobiomodulation for modulating inflammatory and redox processes in various tissues. However, to our knowledge, this is the first study to evaluate the safety profile and redox modulation capacity of high-power laser therapy in BV-2 microglial cells.

methodsThis study investigated the cellular responses of BV-2 microglial cells exposed to three laser irradiation protocols using a high-power laser device (650/810/915/980 nm, 657 J total dose), applied at variable distances to simulate in vivo power attenuation. Cell viability, apoptosis, adenosine triphosphate(ATP) levels, mitochondrial membrane potential (MMP), reactive oxygen species (ROS), nitric oxide (NO), and intracellular calcium levels were assessed at multiple time points (5 min to 24 h).

resultsProtocol-dependent effects were observed. Protocol A promoted early increases in cell viability and ATP levels, along with decreased apoptotic markers and ROS production, suggesting a protective bioenergetic response. In contrast, Protocol C showed transient increases in oxidative stress and reduced MMP, suggesting possible mitochondrial stress. A selective increase in NO levels under Protocol A also suggests modulation of inflammatory pathways without cytotoxicity.

conclusionsHigh-power laser therapy modulates redox balance, mitochondrial function, and inflammatory mediators (e.g., NO) in a dual-phase manner in BV-2 microglial cells. These findings contribute to defining safe and effective parameters for potential musculoskeletal and neurological applications.

Indexed as

high-intensity lasermitochondrial functionoxidative stresssafety profile

Identifiers

PMID41154552
PMCPMC12562247

What Socratic holds

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LicenceCC BY
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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 Socratic graph.