[Quantitative histochemical study of the reaction kinetics to inosine-5-monophosphate dehydrogenase and 5'-nucleotidase in cryostat sections of rat liver].

The data are presented on kinetics of histochemical enzymatic reactions demonstrating two enzymes taking part in the purine metabolism--inosine-5-monophosphate dehydrogenase (IMPD) and 5'-nucleotidase (5'-NT). It is shown that IMPD has a very weak affinity to substrate IMP (KM = 2.5 .

[Tissue organization of mesothelium under normal conditions and during reparative regeneration].

The investigation of tissue organization of the mesothelium by non-parametric statistic methods has shown that under conditions of reparative regeneration the principle of organization of the mesothelium as a tissue is preserved. Heteromorphism characteristic of the normal mesothelium is increased at all steps of regeneration, and the degree of the layer organization is decreased. The mitotic activity leading to the reparation of defect develops undulatorily, the periodicity of time does not coincide with the periodicity in space.