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Objective: The aim of this study was to determine the wavelength dependence of light-induced redox reactions in cells, particularly whether there is any contribution by red wavelengths. An additional aim was to assess the potential of 2,2,6,6-tetramethyl piperidine- N -oxyl (TEMPO) as a tool for...
Objective: The purpose of this study was to evaluate the influence of Cu-GHK aids for the LED-PI on fibroblast proliferation and collagen production in vitro . Background Data: Light-emitting diode photoirradiation (LED-PI) and copper-glycyl-L-histidyl-L-lysine complex (Cu-GHK) treatment may be...
Objective: The aim of the present study was to investigate whether Ga-As laser irradiation can enhance adenosine triphosphate (ATP) production in normal human neural progenitor (NHNP) cells in culture. Methods: NHNP were grown in tissue culture and were treated by Ga-As laser (808 nm, 50 mW/cm 2...
Objective: This study was performed to investigate the changes in temperature induced by an Er:YAG laser irradiation and to find the means to minimize potential thermal damage due to temperature rise after irradiation. Background Data: Intrapulpal temperature rise was found to last after...
Objective: The aim of this study was to investigate the cytotoxicity of octal-bromide zinc phthalocyanine (ZnPcBr 8 ) before and after irradiation with a low-power laser (AsGaAl) and analyze the effects of photodynamic therapy (PDT) on the nucleus of L929 cells. Background Data: One of the most...
Objective: This pilot double-blind randomized study evaluated the efficacy of 780-nm laser phototherapy on the acceleration of axonal growth and regeneration after peripheral nerve reconstruction by polyglycolic acid (PGA) neurotube. Background Data: The use of a guiding tube for the...
Objective: This study sought to investigate whether low-level laser therapy (LLLT) with a helium-neon (He-Ne) laser would increase fibril diameter of transected medial collateral ligament (MCL) in rats. Background Data: It has been shown that LLLT can increase ultimate tensile strength MCL...
Objective: The aim of this study was to investigate the effect of laser therapy (λ = 780 nm) on bone tissue submitted to ionizing radiation. Background Data: The biostimulation effect of laser in normal bone tissue has already been demonstrated successfully; however its effect on bone tissue...
Objective: This study investigated the influence of melanin on the outcome of photoradiation at 670 nm in a cell culture model. Background Data: Melanins are naturally occurring cutaneous pigments. Human skin is classified into six skin types based on melanin content. Methods: Gelatin photo...
Objective: The purpose of this study was to identify synergistic effects in the interaction of light with biosystems in the presence of chemical agents. Their systematic analysis promises therapeutic strategies. Background Data: Light intensities around 1000 Wm −2 potentially induce density...
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