Abstract
Treatment of male rats with cortisone or with anabolic steroid 17-ethyl-19-nortestosterone significantly depressed oxygen uptake of diaphragm, liver, myocardium and kidney slices. This depression of Q02 in tissues studied was reversible. Interruption of hormonal treatment for 14 days resulted in normalization of QO2-Expected antagonism between anti -anabolic and anabolic hormones was not found on QO2 of tissues.