Analysis of some aspects of mechanism of action of helium-neon laser

The action of laser radiation on enzymatic and free radical oxidation, structural and functional state of mitochondrial membranes and nuclear chromatine, RNA and glycogen content, morphometric cell factors was investigated. It is shown that laser radiation has a stimulating effect on metabolic processes directly in the irradiated tissue as well as in CNS which is shown by activation of energetic and plastic processes and by lowered free radical oxidation rate. General X-ray radiation led to destructive changes in the tissue. Preexposure to laser rays shows some protective effect in the directly irradiated tissue. Comparison of laser radiation with incoherent red light shows greater metabolic changes which occur after exposure to a laser beam.