[Effect of ascorbic acid and oat polyphenols on respiration and oxidative phosphorylation in liver mitochondria in alloxan diabetic rats].

30 mg of ascorbic acid and 80 mg of dry oats extracts were administered to rats with alloxan diabetes during a day per 1 kg of live weight. Administration of these preparations during 6, 12 and 24 days prevents the uncoupling action of respiration and oxidative phosphorylation, that was observed in the rats with alloxan diabetes which were not given ascorbic acid and oats polyphenols. The P/O coefficient on the alloxan diabetes rats on the 6, 12 and 24 days was 1.

[Galascorbine structure, studied by nuclear magnetic resonance].

The chemical structure of a galascorbine molecule was studied by the nuclear magnetic resonance NMR technique. On the basis of the obtained NMR spectra a conclusion was drawn than galascorbine is ester ascorbic acid and tannin hydroxycarbon acids. This finding was confirmed by the results of independent studies in the products of interaction between ascorbic and gallic acids.

[Effect of vegetable polyphenols on the level of glycogen in the tissues and glucose in the blood of starving rabbits].

The paper deals with the effect of galascorbin and polyphenol preparations obtained from oats and birch buds on the content of glycogen in the tissues and that of glucose in the blood of fasting rabbits. It is shown that introduction of P-vitamin preparations under study into the organism of fasting animals favours the preservation of glycogen content in the liver, skeletal and heart muscles. The level of glucose preserved in blood with administration of galascorbin and polyphenol preparations from oats and birch buds was 27, 36 and 34% of the control, respectively.