Effect of Irradiation on Microvascular Endothelial Cells of Parotid Glands in the Miniature Pig

Single-dose IR led to a significant reduction of MVD and local blood flow rate, indicating marked damage to microvascular endothelial cells in miniature pig parotid glands. The significant and rapid increases of ASMase and NSMase activity levels may be important in this IR-induced damage.