[Paramagnetic centers formed in mouse blood gamma-irradiated at 77K].
The method of low-temperature ESR-spectroscopy was used to study the primary products of radiation injury of mouse blood. It was shown that when blood samples were exposed to gamma-radiation at 77 K radicals of water, lipids and proteins and also oxyhemoglobin adducts (Fe3+--O2(2-)) were formed. It was shown that oxyhemoglobin electron adducts were protonated during stepwise annealing to form complexes (Fe3+--HO2-). High spin methemoglobin is probably the final product of transformations of the oxyhemoglobin complexes.
D000818:Animals; D001769:Blood / Q000528:radiation effects*; D003037:Cobalt Radioisotopes; D004578:Electron Spin Resonance Spectroscopy; D005609:Free Radicals; D005720:Gamma Rays; D066298:In Vitro Techniques; D051379:Mice
D003037:Cobalt Radioisotopes; D005609:Free Radicals
Paramagnitnye tsentry, voznikaiushchie v krovi mysheĭ, gamma-obluchennoĭ pri 77K.