[Registration of K(+)-equilibrium potential in myometrium cell plasma membrane and study of its modulation of NO(x) and H2O2, using flow cytometry method].

Prospects of the use of flow cytometry analysis for investigation of forming K(+)- equilibrium membrane potential on the experimental model of myometrium plasma membrane vesicles in the presence of valinomycine using potential-sensitive probe of DiOC6(3). Transmembrane potential magnitude corresponds to magnitude by Nernst's equation. H2O2 and NO2-, probably, increase permeability of membrane for K+ and result in potential dissipation. Given effect is not shown for sodium nitroprusside. The obtained results confirm an assumption as to enhancing the passive transport for K+ through sarcolemma under the action of these substances, that can lead to membrane repolarisation and decline of the level of its excitability.