1
|
Danylovych HV, Chunikhin AY, Danylovych YV, Kosterin SO. Application of petri nets methodology to determine biophysicochemical parameters of mitochondria functioning. UKRAINIAN BIOCHEMICAL JOURNAL 2021. [DOI: 10.15407/ubj93.03.101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
2
|
Danylovych Y, Danylovych H, Kosterin S. ROLE OF POTASSIUM IONS IN NITRIC OXIDE BIOSYNTHESIS BY SMOOTH MUSCLE MITOCHONDRIA. FIZIOLOHICHNYĬ ZHURNAL 2021; 67:16-23. [DOI: 10.15407/fz67.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2024]
Abstract
The NO-synthase activity (mtNOS) in mitochondria of uterine smooth muscle was studied. The mitochondrial localization of NO synthesis in myocytes was proved using laser confocal microscopy method and specific fluorescent probes MitoTracker Orange (specific to mitochondria) and DAFFM (NO-sensitive fluorescent probe). It was demonstrated using flow cytometry that nitric oxide biosynthesis in isolated mytochondria decreased in the presence of a constitutive NOsynthase blocker 2-aminopyridine (100 μmol per l, 50% inhibition) and monoclonal antibodies (2.5 μg anti-Let m1 per 50 μg protein) against the H+-Ca2+-exchanger (Letm1 protein), but was’t sensitive to the mitochondrial permeability transition pore inhibitor cyclosporin A (5 μmol per l). A decrease of potassium ions concentration in the incubation medium and the presence of various types of potassium channel inhibitors significantly inhibited the NO-synthase reaction. We have concluded that potassium permeability of the inner mitochondrial membrane plays important role in the regulation of mtNOS activity.
Collapse
|
3
|
Danylovych HV, Danylovych YV, Bohach TV, Hurska VT, Kosterin SO. Sources and regulation of nitric oxide synthesis in uterus smooth muscle cells. UKRAINIAN BIOCHEMICAL JOURNAL 2019. [DOI: 10.15407/ubj91.04.033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|