[Effect of low intensity laser radiation with various wavelength on bone marrow immunopoiesis progenitors]

Effects of helium-neon and cadmium-neon lasers with wavelength 632.8 and 470 nm correspondingly with power 20 mw and also argon laser with wavelength 480 nm, power 1 w on "early" and "late" colony-forming units (CFU) of mice bone marrow were appreciated. The helium-neon laser as compared to the cadmium-neon one stimulated the "late" CFU and incorporation of 3H-thymidine in DNA of the bone marrow cells after 30 or 45 min exposition. The more powerful argon laser after 30 min exposition suppressed "early" and "late" CFU completely by 50% dead cells of the bone marrow. A decrease of the argon laser exposition to 5 min was accompanied, by the preservation of the bone marrow cells viability at the control level and ability to stimulate "early" CFU.