Modeling of Hypervolemia in Pulmonary Circulation in Rats Changes the Structure of NO-Mediated Relaxation of Pulmonary Arteriesстатья
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Дата последнего поиска статьи во внешних источниках: 19 августа 2020 г.
Аннотация:We analyzed the contribution of soluble guanylate cyclase-dependent pathway into NO-mediated relaxation of pulmonary arteries under conditions of high pulmonary blood flow modeled by creation of carotid artery-jugular vein shunt in rats. Inhibitor of soluble guanylate cyclase suppressed NO-donor induced relaxation was lower in rats with shunt, but dilatation in response to phosphodiesterase V inhibitor did not differ in the sham-operated and shunt groups. Thus, the structure of NO-mediated vasodilatation of pulmonary arteries under conditions of hypervolemia of pulmonary circulation was shifted to soluble guanylate cyclase-independent pathways, whereas intracellular soluble guanylate cyclase-dependent mechanisms of dilatation were in general unchanged.