[Dynamics of mitotic activity and frequency of pathologic mitoses in solid Ehrlich tumor after exposure to ultrasound...

The dynamics of mitotic activity and the frequency of pathologic mitoses and their spectrum in 180 mice bearing Ehrlich solid tumors were studied after exposure to X-rays (XR) (5.6 Gy), ultrasound (US) (2W/cm2, for 5 min) or the combined exposure to both agents delivered in a different sequence. The harmful effect of the above-mentioned agents diminished when they were delivered in the following order: US+XR, XR+US, XR, and US. After the combined treatment the spectrum of the pathologic mitoses widened.