Figure 5From: In vivo99mTc-HYNIC-annexin V imaging of early tumor apoptosis in mice after single dose irradiationTUNEL assay for S180 transplant sarcoma after irradiation. In pathological sections of S180 sarcoma after irradiation (× 100), the black arrow indicates the TUNEL positive apoptotic cells. It shows that the number of apoptotic cells increases as radiation of 8 Gy is delivered comparing to that of the 0 Gy control.Back to article page