Investigation of low-intensity argon laser irradiation on mitochondria

Yuji Morimoto; Tsunenori Arai; Makoto Kikuchi; Shinji Nakajima M.D.; Haruo Nakamura M.D.

doi:10.1117/12.148027

14 July 1993 Investigation of low-intensity argon laser irradiation on mitochondria

Yuji Morimoto, Tsunenori Arai, Makoto Kikuchi, Shinji Nakajima M.D., Haruo Nakamura M.D.

Proceedings Volume 1883, Low-Energy Laser Effects on Biological Systems; (1993) https://doi.org/10.1117/12.148027
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

To investigate the mechanism of cell photostimulation, we measured oxygen consumption of mitochondria during low-intensity laser irradiation at various wavelengths in vitro. Isolated guinea-pig liver mitochondria were irradiated with a low-intensity argon laser irradiation at the wavelength of 351 nm, 458 nm, and 514.5 nm. Both 351 nm and 458 nm irradiations increased the mitochondrial oxygen consumption on state 4 respiration in spite of no effect on state 3 respiration. The 514.5 nm irradiation activated the mitochondrial oxygen consumption on state 3 respiration in spite of no influence on state 4 respiration. These results might be explained that the ultraviolet irradiation causes damage to the mitochondrial inner-membrane, and the 514.5 nm irradiation enhances ATP-synthesis.

Citation Download Citation

Yuji Morimoto, Tsunenori Arai, Makoto Kikuchi, Shinji Nakajima M.D., and Haruo Nakamura M.D. "Investigation of low-intensity argon laser irradiation on mitochondria", Proc. SPIE 1883, Low-Energy Laser Effects on Biological Systems, (14 July 1993); https://doi.org/10.1117/12.148027

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