[The characteristics of the phospholipid composition of the pulp in the milk teeth]. / Osobennosti fosfolipidnogo sostava pul'py molochnykh zubov.

Qualitative and quantitative phospholipid composition of porcine deciduous teeth pulp was studied by microthin-layer chromatography. Basing on the differences in the levels of individual phospholipids in the pulp of deciduous and permanent teeth, the authors come to a conclusion on the inadequate structural organization and functional activity of the pulp of deciduous teeth.

[The characteristics of lectin binding to the surface of differentiated neuroblastoma C 1300 cells]. / Osobennosti sviazyvaniia nekotorykh lektinov s poverkhnost'iu differentsirovannykh kletok neiroblastomy C 1300.

Peculiarities of the binding of lectins of castor bean, cochlea, soya bean, lime bean and wheat germs to the surface of differential neuroblastoma C 1300 N 18 cells have been studied using the method electron cytochemistry. It is found that the quantity of the bound lectin conjugates with colloidal gold on the surface of differentiated cells varied considerably from that on the surface of nondifferentiated cells.

[Evaluation of the distribution of lectin receptors on the surface of tumor and transformed cells using methods of variation statistics]. / Otsenka raspredeleniia lektinovykh retseptorov na poverkhnosti opukholevykh i transformirovannykh kletok s pomoshch'iu metodov variatsionnoi statistiki.

Statistical procedures were used to estimate lectin receptor distribution on the surface of ascite lymphoma cells, neuroblastoma C-1300 cells and of transformed human T- and B-derived lymphoid cell lines. Relationships between the arithmetic means and mean square variances for sample populations from each cell and ferritin- or colloidal gold-lectin combination were used to define four types of topographical distributions: uniform-ordered, uniform-random, random and clustered.

[Localization of lectin receptors on the surface of C1300 neuroblastoma cells]. / O lokalizatsii retseptorov lektinov na poverkhnosti kletok neiroblastomy C 1300.

D-mannose, D-galactose, N-acetyl-D-galactosamine, N-acetyl-D-glucosamine and L-fucose which are sugar determinants of receptors were found on the surface of neuroblastoma cells by means of four carbohydrate-specific lectin groups. Labeling of lectins was performed by horseradish peroxidase, ferritin and colloidal gold. Peculiarities of the lectin receptors distribution on the surface of immature neuroblastoma cells were detected.

[Cell surface receptors in lymphoid lines studied using lectins]. / Issledovanie retseptorov na poverkhnosti kletok limfoidnykh linii s pomoshch'iu lektinov.

The nature and distribution of some carbohydrate receptors on the cell membrane of transformed human B- and T-derived lymphocyte cell lines (RPMI-1788, Daudi, Jurkat, Molt-4) are studied by Ricinus communis agglutinin, soybean agglutinin, Helix pomatia lectin, peanut agglutinin and wheat germ agglutinin conjugated with ferritin and colloidal gold. The quality of receptors and the manner of their distribution detected by different lectins are considerably different.

[Structure and function of hepatocyte lysosomes and peroxisomes of rachitic rats]. / Osoblyvosti struktury i funktsiï lizosom i peroksysom hepatotsytiv shchuriv za rakhitu

The submicroscopic organization and activity of acid phosphatase and catalase in lysosomes and peroxisomes of the rat hepatocytes were studied with experimental rachitis. It is determined that total and free activity of acid phosphatase in the liver tissue and certain lysosomes with rachitis increases whereas the catalase activity in the tissue and certain peroxisomes decreases. Permeability of the lysosome and peroxisome membranes rises for enzymes and cations. The process of peroxisome differentiation with rachitis is disturbed: there appear peroxisomes containing the marginal plates, that is not peculiar to the redont peroxisomes.

[Localization of Ca2+ in the smooth muscle and glandular cells of the rabbit uterus]. / Lokalizatsiia Ca2+ u hladkom'iazovykh ta zalozystykh klitynakh matky krolyts'

The pyroantimonate and radiometric procedures were used to establish the presence of three foci of selective accumulation of ions Ca2+ in the myometrium smooth-muscular cells: in nuclei, mitochondria and endoplasmatic reticulum. In the epithelium of the womb glands, besides the same foci a considerable amount of ions Ca2+ is contained in the cytoplasm matrix. Under the effect of serotonin the myometrium nuclei lose 45Ca most actively in the epithelium cells of the womb glands the content of Ca2+ changes, that gives reason to suppose that these structure participate in the calcium redistribution with a change in the functional activity of myometrium.