[A morphological evaluation of the preventive and therapeutic action of low-intensity laser radiation on the course of acute toxic hepatitis].

The optimal schedule of the preventive and therapeutical effect of helium-neon laser on the acute toxic hepatitis induced in rats by CCl4 is established. The laser dose of 5-10 mVt/cm2 for 5-10 min prevents the toxic hepatitis while therapeutical use of 7 to 10 such schedules reduces the intensity of the protein and fat degeneration, parenchymal necrosis and inflammatory infiltration.