Show Presence Presences Is s Necessary for Growth of Cancer WASHINGTON Cancer tissue issue contrary to generally held opinion requires the same sort of protein nourishment nourishment nourishment nourish nourish- ment for its growth as normal nor nor- mat mal tissue does Experiments Experiments Experiments ments showing this are reported reported reported re re- re- re ported by Drs Carl J. J M. M Johnson and J. J W. W Thompson of the United States public health service The results of ot the studies In which the growth of cancers in mice were checked by certain types of diet cannot be applied in the treatment treatment treatment treat treat- ment of cancer in man Dr Di Un in emphasized New fundamental knowledge of the he chemistry of cancer growth however has been gained Needs to Grow Crow The growth of breast cancer in mice can be checked Dr and associates found by feeding the animals a diet deficient though not entirely lacking In This chemical is an amino acid one of the he essential building stones of all an tissue Issue proteins is also part of another chemical which Is widely distributed in body tissues After the cancer growth in the mice had been checked for about a month by the diet deficient in cys cys- tine repeated injection of one caused a marked stimulation of the cancer growth This shows that is necessary for the rapid growth of cancer tissue just justat justa a ai at it is apparently necessary for growth of normal tissue |