[Effect of local thermal and radiation effects on the enzymatic activity of tumor tissue hydrolases].

Comparative investigation of the time course of the release of acid phosphatase and cathepsin D from cancerous tissue after exposure to ultra-high-frequency hyperthermia and radiation (2-8 Gy) has demonstrated that the maximal effect was attained after thermal (42 degrees C) exposure for 15 min as compared to that after 30- and 60-minute hyperthermia and ionizing radiation at a dose of 8 Gy.