[Various cellular mechanisms of the action of laser irradiation of blood]

Effect of in vitro exposure to therapeutic He-Ne laser at a wave-length of 630 nm in two modes, 2 and 6 mWt, on the function of blood cells is studied. Exposure to 6 mWt resulted in spontaneous increase of interleukin-1 production by peripheral blood mononuclears. 2 mWt exposure led to increase of erythrocyte deformability and decrease of their viscosity, whereas 6 mWt exposure did not modify these parameters. Laser-effected changes in the production of other cytokines, primarily interleukins 2, 6, and 8, are a perspective trend of research.