[Input impedance for studying hydraulic parameters of the vessel system]. / Vozmozhnost' ispol'zovaniia metoda vkhodnogo impedansa dlia opredeleniia gidravlicheskikh parametrov sosudistoi seti.

Vascular input impedance can be used as an effective tool in estimating hydraulic parameters of arterial bed. These parameters may be interpreted as hydraulic resistance, elastance and inertance of particular sites of the arterial system. There is no significant difference between these parameters and those obtained through a direct measurement.

[The role of endothelial mechanosensitivity in vessel bed responses to changes in blood pressure in cats]. / Rol' mekhanochuvstvitel'nosi éndoteliia v reaktsiiakh sosudistogo rusla na izmeneniia davleniia u koshek.

In 19 anaesthetised cats, the response of vascular bed to increasing perfusion pressure at a constant blood flow perfusion consisted of two phases: a myogenic constriction and a subsequent arterial dilatation. The latter depended on ability of the endothelium to relax the smooth muscle under stress. The findings suggest that the control of the smooth muscle tone by a stress has to fight against the myogenic constriction and thus determines the changes in vascular resistance induced by an increased arterial pressure.