[Coronary-active bovine heart proteins induce relaxation in the rabbit aorta].

Seven cardioactive polypeptides have been identified in the precardiac and auricular regions of the bovine heart. Those polypeptides were studied for their action on the function of isolated preparations of the vessel. It has been found that compounds isolated from the precardiac region induce different (20-55%) relaxation of smooth muscles in a strip of the aorta of rabbit.

[Treatment results in locally disseminated rectal cancer (based on data from the Armenian SSR)].

Data on rectal cancer morbidity in the Armenian SSR for the last two decades are presented and the causes of high-frequency incidence of advanced tumors are analysed. The results of combined and complex treatment using different preoperative procedures are discussed. High effectiveness of preoperative medium- and large-fractionated irradiation was shown, particularly, in application of cell cycle synchronizing effect of 5-fluorouracil treatment.