[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.

[Anti-inflammatory and immunosuppressive effects of laser therapy in patients with rheumatoid arthritis].

The clinical and laboratory findings were examined of 10 patients with seropositive rheumatoid arthritis (RA) treated with a first applied technique of intravenous irradiation of the circulating blood with helium-neon laser combined with external irradiation of the inflamed joints. A distinct antiinflammatory and immunosuppressant effect was attained in all the RA patients. In 80% of the test subjects, the rheumatoid blood factor reduced to 1:20 titres.