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Effect of radiation on prothrombin interactions with cell membrane fragments
S V Kiselev1, D M Zubairov, S V Kirshin
1Kazan State Medical University. dilja2001@mail.ru
Radiation exposure increases cell membrane
Area of Science:
- Biochemistry
- Cell Biology
- Radiation Biology
Background:
- Cell membranes play a crucial role in cellular interactions.
- Radiation damage can alter cell membrane properties.
- Thrombogenicity is a critical factor in blood clotting.
Purpose of the Study:
- To investigate the effect of radiation on cell membrane thrombogenicity.
- To quantify the binding of prothrombin to normal and irradiated cell membranes.
Main Methods:
- Utilized (125)I-labeled prothrombin for binding studies.
- Examined cell membrane fragments exposed to varying radiation doses (1 and 3.5 Gy).
Main Results:
- Irradiation significantly enhanced the adsorption of (125)I-prothrombin to cell membranes.
- A dose-dependent increase in prothrombin binding was observed with increasing radiation levels.
Conclusions:
- Radiation-induced alterations in cell membranes increase their thrombogenic potential.
- Phase rearrangement of phospholipids is identified as the molecular mechanism underlying enhanced membrane thrombogenicity post-irradiation.
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