| Autor: |
Kalaeva EA, Artyukhov VG, Putintseva OV, Polyubez'eva AI |
| Jazyk: |
ruština |
| Zdroj: |
Eksperimental'naia i klinicheskaia farmakologiia [Eksp Klin Farmakol] 2016; Vol. 79 (9), pp. 12-17. |
| Abstrakt: |
The spectral and oxygen-binding characteristics of human intracellular hemoglobin in the presence of nitroglycerin at concentrations of 5 ng/mL and 5 μg/mL have been studied. Short incubation (20 min) of erythrocytes with the drug led increasing hemoglobin affinity to oxygen and weakening of cooperative interactions in hemoprotein molecules. As a result, the amount of O(2) supplied to tissues in the process of gas exchange decreased by 23.96% (5 ng/mL) and 26.68% (5 μg/ml), p < 0.05. Incubation of cells for 24 h resulted in oxidation of the heme iron atom, accumulation of methemoglobin, and partial hemolysis. Nitroglycerin reduces the intensity of oxidative processes. However, no dependence of the degree of changes in the physical and chemical properties of hemoglobin on the concentration of nitroglycerin was found. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
|
