[The scientific, organizational and methodological bases for the epidemiological surveillance of streptococcal group A infection in a large city].

These investigations have made it possible to establish the extent and scale of the spread of streptococcal infection (group A) and its socioeconomic importance in Moscow, a great mega-police of the world. The deterioration of the epidemiological situation in recent years, accompanied by an increase in morbidity and mortality caused by streptococcal infection, has been demonstrated. The program and conceptual foundations of epidemiological surveillance on this infection in Moscow are presented.

[The role of oxytocin in realizing hypothalamic effects on the motor function of the digestive tract].

Chronic experiments in dogs showed that, after i.v. injection of oxytocin, the latency of activation of gastrointestinal motility by the stimulation of median hypothalamic structures was increased and inhibitory effects of posterior hypothalamic structures on the contractile activity of the digestive tract were intensified.

[The role of adrenergic receptors in the realization of hypothalamic effects on the motor function of the digestive tract in hypophysectomized dogs].

Chronic experiments on hypophysectomized dogs with gastric and small intestinal fistulas as well as with hypothalamus-implanted electrodes have shown that blockade of alfa-adrenoreceptors by phentolamine increases the number of the excitatory motility responses while stimulating hypothalamic structures during rest of the gastrointestinal tract and decreases inhibitory effects of the stomach while stimulating hypothalamic structures during work of the digestive tract. The blockade of beta-adrenoreceptors by obsidan induces weakening of excitatory responses of the digestive tract and intensification of inhibitory ones while stimulating hypothalamic structures in hypophysectomized dogs.