The Effects of Infrared Radiation on the Ehrlich Ascites Tumor

Abstract

This paper deals with a study of the effects of infrared radiation (10, 000 A°) on the Ehrlich ascites tumor. Total body radiation was given continuously for a 24 day period. Mitotic indices were determined daily for treated and control groups throughout the period of radiation. Growth and survival curves were determined from data collected at three day intervals for a period of 45 days. Comparative cytological studies were made.
Solid tumors frequently developed in the treated group. Infrared apparently had a stimulatory effect on the tumor employed as reflected by mitotic indices and comparative growth curve studies. Higher percentages of animals survived with infrared treatment as opposed to the controls. Infrared appeared to have a direct physical effect on the cell and its constituents and may act indirectly by interfering with various physiological processes.