Concentration of Lipid Phosphorus in Tumor and Carcass of Rats Growing Walker Carcinoma 256

Abstract
The concn. of lipid P in Walker Carcinoma 256 has been compared with that in the carcass of the host rat and of suitable control rats. Dietary regimes included feeding ad lib., pair-feeding of non-tumor to tumor rats, and force-feeding a high-fat diet to all rats. The concn. of lipid P was greater in the tumor than in the carcass, and in the rat plus tumor than in pair-fed or force-fed rats without tumor that consumed the same amt. and kind of diet as the tumor rats. The concns. of lipid P in young rats and in the tumor were similar, and greater than in adult rats. The concn. of an alkali-resistant phospholipid was greater in the tumor than in the carcass.