Studies on Fibrinogen Turnover Before and After Whole Body X-Irradiation in the Rat.

Abstract
Summary 1. The biological half-life for in vivo screened I131 labeled rat fibrinogen injected intravenously in normal rats was found to be 1.5 days. After 6–7 days the apparent biological half-life changed to 2.7 days. 2. The apparent whole-body turnover of I131 fibrinogen after whole-body X-irradiation was the same for both irradiated and control rats. However, the data on plasma I131 fibrinogen indicate that fibrinogen leaves the vascular space at an enhanced rate after whole-body irradiation.