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Light buckets and laser beams: mechanisms and applications of photobiomodulation (PBM) therapy.
Geroscience
January 2025
National Institute On Aging, Bethesda, MD, USA.
Photobiomodulation (PBM) therapy, a non-thermal light therapy using nonionizing light sources, has shown therapeutic potential across diverse biological processes, including aging and age-associated diseases. In 2023, scientists from the National Institute on Aging (NIA) Intramural and Extramural programs convened a workshop on the topic of PBM to discuss various proposed mechanisms of PBM action, including the stimulation of mitochondrial cytochrome C oxidase, modulation of cell membrane transporters and receptors, and the activation of transforming growth factor-β1. They also reviewed potential therapeutic applications of PBM across a range of conditions, including cardiovascular disease, retinal disease, Parkinson's disease, and cognitive impairment.
View Article and Find Full Text PDFMerged Red and NIR Light Sources for Photobiomodulation Therapy in Diabetic Wound Healing.
ACS Appl Mater Interfaces
January 2025
School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea.
Photobiomodulation (PBM) is considered an effective and safe therapeutic modality in supporting the treatment of complications from a global pandemic-diabetes. In this study, PBM therapy is investigated to accelerate wound healing in diabetic mice (DM), under the combined biological effects of red light from a red organic light-emitting diode (ROLED) and near-infrared (NIR) light from an NIR conversion film (NCF) with dispersed CuInS/ZnS quantum dots (QDs). The QD concentration and the NCF structure were optimized to maximize the optical properties and mechanical stability.
View Article and Find Full Text PDFOptimizing Photobiomodulation Radiometric and Spectral Parameters In Vitro to Enhance Angiogenesis and Mitochondrial Function.
Int J Mol Sci
December 2024
Laboratory for Functional and Metabolic Imaging (LIFMET), Institute of Physics, Swiss Federal Institute of Technology (EPFL), Station 3, 1015 Lausanne, Switzerland.
Photobiomodulation (PBM) therapy, a therapeutic approach utilizing low-level light, has garnered significant attention for its potential to modulate various biological processes. This study aimed at optimizing and investigating the effects of PBM on angiogenesis and mitochondrial metabolic activity. In vitro experiments using human umbilical vein endothelial cells (HUVECs) and vascular smooth muscle cells (VSMCs) were performed to assess PBM's impacts on cell migration, proliferation, endogenous protoporphyrin IX production, mitochondrial membrane potential, Rhodamine 123 fluorescence lifetime, mitochondrial morphology, and oxygen consumption.
View Article and Find Full Text PDFA systematic review of salivary gland hypofunction and/or xerostomia induced by non-surgical cancer therapies: prevention strategies.
Support Care Cancer
January 2025
Department of Dentistry and Oral Health, Faculty of Health, Aarhus University, Aarhus, Denmark.
Purpose: This systematic review aimed to assess the updated literature for the prevention of salivary gland hypofunction and xerostomia induced by non-surgical cancer therapies.
Methods: Electronic databases of MEDLINE/PubMed, EMBASE, and Cochrane Library were searched for randomized controlled trials (RCT) that investigated interventions to prevent salivary gland hypofunction and/or xerostomia. Literature search began from the 2010 systematic review publications from the Multinational Association of Supportive Care in Cancer/International Society of Oral Oncology (MASCC/ISOO) up to February 2024.
Impact of photobiomodulation on neural embryoid body formation from immortalized adipose-derived stem cells.
Stem Cell Res Ther
December 2024
Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, 2028, South Africa.
Article Synopsis
- Embryoid bodies (EBs) are 3D aggregates from stem cells that mimic early embryonic development and are crucial for generating various stem cell types, including neural cells.
- Photobiomodulation (PBM), a low-powered light therapy, may enhance the differentiation of adipose-derived stem cells into neural embryoid bodies (NEBs) in a 3D culture environment, addressing current methodologies' limitations.
- Results indicate PBM at 825 nm with a fluence of 10 J/cm significantly improved NEB size, cell viability, and specific stem cell markers, suggesting increased neural precursor populations and minimal cell damage.
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