[The effect of ionizing radiation on the vascular bed of the skin in ontogeny. The status of the lymph- and blood-microcirculatory beds of the skin in newborn white rats during sublethal irradiation].

Three-day rat pups were X-irradiated (5 Gy) and killed on days 3-4, 6-7, and 10-11. Using the microscopic, histological and morphometric methods it was found that the microcirculation channel was damaged to a greater extent than the hemocirculation one. This was followed up during the radiation sickness. The pathological changes were more pronounced in all structures of the derma papillary layer than in those of the reticular layer. Oedema and reduced cellularity were noted in the connective frame.