Abstract: “The blood serum rheological properties can open the door to many investigators to find the convenient therapy for many cases of radiation exposure. The present study aimed to investigate the rheological properties of rat blood serum at wide range of shear rates after whole body irradiation with 75Gy gamma radiation dose in vitro. Thirty healthy male Wistar-Kyoto rats weighing 200 gm were used in this study. Animals were randomly divided into gamma-irradiated rat group (irradiated with 75Gy) and control rats group. The irradiation process was carried out using Co 60 source with 0.883 cG/sec dose rate. The rheological parameters measured were viscosity (cp), %torque, shear stress (dyne/cm2) and shear rate (s-1). The rat blood serum viscosity increased significantly in the gamma-irradiated rats group corresponding to each shear rate compared with the control. The relationship between viscosity and shear rate exhibited a Non-Newtonian behavior for the control and gamma-irradiated rats grou”

Keywords: Rheological properties; gamma radiation doses; blood serum; rats