[Cis-polyenecarboxylic acids and other fat-metabolism parameters in carcinoma of the digestive tract].

In 24 patients with a neoplasm of the gastro-intestinal tract cis-poly-unsaturated fatty acids were determined in the serum together with cholesterol, free and total glycerin as well as with neutral fats. In the cis-polyene acids a statistically ascertained diminution occurs, all the other parameters remain practically unchanged. To what extent very low values of poly-unsaturated fatty acids are to be connected must still be tested. It cannot be judged about a correlation of cancer and values of neutral fats, since the breadth of the normal area of this parameter of fatty metabolism is very large and the number of test persons is relatively small. The content of cholesterol of patients with cancer is prettily constant and deviated only little from the normal.