A COMPARISON OF THE CYTOLOGICAL EFFECTS PRODUCED BY IONIZING RADIATIONS OF DIFFERENT LET

摘要

In the past 3 years, we have (a) irradiated about 800 mice with single or fractionated doses of X-rays or fission neutrons and have tested the lens epithelia by wounding at 1 weak, 2 weeks, or 4 weeks postirradiation,(b) irradiated about 900 rats with a single dose from a graded series of single doses of X-rays or fission neutrons and tested the lens epithelia by wounding at 3, 14, or 28 days post-irradiation (plus about 100 control lens epithelia), (c) irradiated either half of a rat lent er the entire lens to compare the immediate effects on the wound response and recovery rates in the half-irradiated and whole-irradiated epithelia, and (d) done a pilot study on Camp and RNA synthesis in the hours soon after wounding.