[Morphological characteristics of acute viral hepatitis]. / Morfologicheskaia kharakteristika ostrogo virusnogo gepatita.

From the literature and their own observations the authors present morphological criteria of acute viral hepatitis which may be used for differential diagnosis from hepatites of other etiology (toxic, drug). Examinations of liver biopsies from patients with viral hepatitis permit to establish the stage of the disease and to predict its possible outcomes.

[Mechanism of oxidative phosphorylation. IV. Role of the closed state of mitochondrial membranes]. / O mekhanizme okislitel'nogo fosforilirovaniia. IV. Rol' zamknutosti membran mitokhondrii.

The clousness of membrane of rat brain mitochondria isolated in Krebs-Ringer's solution was broken by suspending the mitochondria in distilled water. Function characteristics of lyzed organells did not decrease but were somewhat higher than those of the organells suspended in Krebs-Ringer's solution. The results were discussed in relation to the question of the role of clousness of the mitochondrial membrane in the mechanism of oxidative phosphorylation.

[Ultrastructure of human hepatocytes in early prenatal ontogenesis]. / Ul'trastruktura gepatotsitov cheloveka v rannem prenatal'nom ontogeneze

The structure of hepatic cells was studied in 40 human embryos and fetuses from 4 to 16 weeks of intrauterine development. Depending on the differentiation degree of organells and their amount in the hepatic cell of the embryo and fetus three types of hepatic cells are distinguished: slightly differentiated, transitional and differentiated cells. In the course of early prenatal ontogenesis the amount of slightly differentiated hepatic cells diminishes and the amount of transitional and differentiated forms increases. Glycogen granules are found in the embryo hepatic cells from 7-8 weeks of intrauterine development, and in the course of further embryonic development one can speak of establishment of the protein-forming function of the liver on the basis of increased amount of elements of the endoplasmic network and the presence of numerous ribosomes and polysomes in the cell. The hepatic cells of 14-16 week embryos have well pronounced sinusoid and biliar poles.