| Abstract: | Influence of helium-neon laser lg-75 rays on the microcirculatory bed and neurocytes of the small intestine after its experimental ischemia has been studied. When a normal small intestine is radiated, dilatation of the luminal diameter is observed in all links of the microcirculatory bed (MCB) and also hypertrophy of neurocytes, when phenomena of distrophic processes are absent. In 30 days after 3-hours' ischemia of the intestinal loop and its successive radiation, spasm of arterial and dilatation of the venous link of MCB is registered; they normalize by the 45th day. In the control, after ischemia (without radiation) in 45 days venous plethora of the vessels in the intermuscular plexus of the intestinal wall is kept. In the nervous elements of the muscular-intestinal plexus at early stages of the experiment against the background of ischemia reactive and distrophic changes appear. By the 30th day after radiation, the volume of neurocytic bodies increases, processes grow out, nuclear-cytoplasmic index increases. Nonspecific character of the laser rays is supposed; their effect is realised via regional microvascular and nervous formations. |
