[Ultramicroscopic evaluation of teeth enamel de- and remineralization].

The paper presents the results of scanning electronic microscopy evaluation of teeth enamel surface. The method allows studying objects at huge magnification and without preliminary preparation. Research was conducted in vitro on extracted teeth.

Oxidized forms of fibrinogen induce expression of cell adhesion molecules by cultured endothelial cells from human blood vessels.

Oxidized forms of fibrinogen similarly to initial non-oxidized fibrinogen induced expression of P-selectin and ICAM-1 cell adhesion molecules in the cultured endothelial cells derived from human umbilical vein. The effect of oxidized fibrinogen on the expression of adhesion molecules was more pronounced. These data attest to more active participation of oxidized forms of fibrinogen into inflammation in the vascular wall, the first stage of atherogenesis.

Effect of the triterpenoid miliacin on the sensitivity of lymphocytes in the thymus and spleen to dexamethasone-induced apoptosis.

We studied the effect of plant triterpenoid miliacin on dexamethasone-induced apoptosis in thymocytes and splenocytes. Miliacin produced a protective effect on splenocytes by decreasing the degree of DNA fragmentation due to blockade of the cascade cell death distally to the intramembrane phosphatidylserine translocation.