Hemostasis and blood rheological properties: Relationship with the metabolism of gasotransmitters (NO and H2S) in hypertension and in the post-COVID period
DOI:
https://doi.org/10.33910/2687-1270-2026-7-2-206-219Keywords:
gasotransmitters, nitric oxide, hydrogen sulfide, blood rheological properties, hemostasis, hypertensionAbstract
In cardiovascular disease, the metabolism and regulatory potential of gasotransmitters, together with blood fluidity and hemostatic potential, acquire high significance. The aim of this study was to assess the interrelation between metabolism of gasotransmitters and blood rheological properties and the hemostasis system under normal conditions and in hypertension (HT), with an evaluation of the long-term consequences of COVID-19. Whole blood coagulation parameters were assessed by low-frequency piezothromboelastography using the ARP-01M Mednord analyzer (Russia), platelet aggregation was assessed using the ALAT-2 Biola laser analyzer (Russia), blood and plasma viscosity was measured with a Brookfield DV2T rotational viscometer (USA), and erythrocyte deformability and aggregation were assessed using the RheoScan D300 system (South Korea). H2S and NOx levels in blood plasma were determined photometrically. In healthy control, a stable balance of NO and H2S was observed. Their role in regulating blood rheological properties and coagulation, as well as their close interrelation and cross-talk, were confirmed by numerous correlations of rheological and hemostasis parameters with NO and H2S levels in plasma. An increase in plasma viscosity (by 12%, p<0.05), NOx level (by 51%, p<0.01), the intensity of the contact phase of coagulation and the polymerization stage of blood coagulation was recorded in HT compared to controls. In the post-COVID period, Hct, plasma viscosity, and NO levels in HT decreased, while erythrocyte and platelet aggregation activity remained high. The imbalance of gasotransmitters in HT manifests as a decrease in their regulatory effects on blood rheology and the hemostasis system.
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