[Age-related characteristics of the surface bioelectrical potential of human, canine and rat teeth and features of its distribution over the surface of the crown].

Using a digital electron voltmeter, bioelectrical potentials (BEPs) of dental crowns have been recorded in 180 patients, 36 dogs, and 93 white non-inbred rats. It has been established that the surface BEP is a marker of dental enamel maturation and does not depend on the species of mammals. On the other hand maturation processes differ in their rate on the cutting edge, equator, and neck: with advancing age algebraic difference between the magnitudes of surface BEPs decreases in humans and increases in dogs and rats.

[Effect of sugar beet saponins on the body of animals].

A study was made of the effect of sugar beet saponins on motor activity of animals, energy, lipid and carbohydrate metabolism, osmotic resistance of red blood cells, antitoxic liver function. The 50- and 100-fold increase of the initial dose gave rise to an elevation of motor activity, lowering of the content of pre-beta-lipoproteins and increase of the amount of alpha-lipoproteins in blood serum, reduction of the osmotic resistance of red blood cells, dissociation of the processes of oxidation and phosphorylation, and decline of the energy efficacy of respiration.