[The ability of hemoglobin and myoglobin to evoke a spasm of the smooth musculature and to accelerate thrombocyte destruction. A description of serotonin-ferroprotein receptors].

The previously unknown properties of ferroproteins (hemoglobin and myoglobin) to cause smooth muscle spasm and to accelerate platelet degradation are described in the paper. Ferroproteins are shown to interact with some serotonin receptors. Some serotonin receptors of smooth muscles and platelets which hemoglobin and myoglobin interact with are termed serotonin-ferroprotein receptors (S-Fe-pr-receptors).

[Are the serotonin receptors life receptors?].

The paper gives evidence for the fact that serotonin and serotonin receptors are responsible for the occurrence of primary contractions of smooth muscles, primary cardiac contractions and primary brain electric activity (EEG genesis). It is concluded that the function of the smooth muscle, brain and heart cannot take place without serotonin and its receptors. This suggests that the serotonin receptors are life ones.

[Endogenic vasomotor function and smooth muscle insufficiency in the vascular microcirculation].

The paper outlines the previously unknown smooth muscle insufficiency in terms of its etiology, pathogenesis, diagnosis and treatment. It has been shown that drug administration leads to smooth muscle insufficiency which is eliminated by serotonin both in vitro and in vivo. The clinical manifestations of smooth muscle (SM) insufficiency are eliminated by serotonin, irrespective of whether it has been caused by the use of drugs or impaired smooth muscle innervation.

[The effect of antihistamine preparations on the contraction of the isolated guinea pig ureter].

The effect of antihistaminics on contractions of the isolated guinea pig ureter was studied. The ureter contractions induced by histamine were prevented by H1-blockers: pipolphen (promethazine), dimedrol (diphenhydramine), phencarol (quifenadine), suprastin (chloropyramine), cyproheptadine and H2-blockers: cimetidine, ranitidine. Electric stimulation-induced contractions were prevented by suprastin.

[Effect of prazosin on human prostatic adenoma tissue].

The effect of prazosin on epinephrine-induced contractions of human benign prostatic hyperplasia strips was studied. It was shown that prazosin has a pronounced adrenoblocking activity (EC50 = 5.10(-9) g/ml) but fails to affect strip contractions induced by KCL.