[The cytotoxicity of Chamaenerium angustifolium (L.) Scop. and Hippophae rhamnoides L. tannins and their effect on mitochondrial respiration].

The cytotoxic activity of complexes of hydrolysable tannins of Chamaenerium angustifolium L. Scop. and Hippophae rhamnoides L.

The structures of triacylglycerols from sclerotia of the rye ergot Claviceps purpurea (Fries) Tul.

The triacylglycerol fraction of lipids extracted from sclerotia of the rye ergot Claviceps purpurea strain VKM F-2642D has been shown to comprise about 60% of the total lipids and to consist of at least seven constituents, namely, [R]-[R]-[R] (1.6% of the total fraction), [R-Ric]-[R]-[R] (27%), [R-Ric]-[R-Ric]-[R] (65%), [R-Ric]-[R-Ric]-[R-Ric] (4.8%), [R-Ric-Ric]-[R-Ric]-[R-Ric] (1.

[Cell cultured of Macleaya cordata--a producer of antimicrobial benzo[c]phenanthridine alkaloids].

It was shown that a suspension culture of Macleaya cordata accumulated benzo(c)phenanthridine alkaloids in the cell biomass. By the composition of the alkaloids and their content the cell culture markedly differed from the intact plant and callus tissue. The benzo(c)phenanthridine compounds in the cell culture were mainly represented by the reduced forms: dihydrosanquinarin and dihydrochelirubin.

[Kinetic analysis of interaction of human immunodeficiency virus reverse transcriptase with alkaloids].

The interactions of HIV-I reverse transcriptase with some alkaloids were studied. Among nine compounds tested three--berberine, palmatine and sanguiritrine--inhibited RT. The dependence of the inhibition on the type of template-primer was also demonstrated.