New Aspcts of Phospholipids Metabolism

Phospholipids and their metabolism.

Metabolism of phospholipids in Ehrlich ascites tumor.

of cancer cells may be related to the characteristics of the cell surface membranes (i, 7, 43). For example, Coman and his associates have drawn attention to the importance of such properties of the cell surface as adhesiveness(6, 31) and stickiness (8). Since it is now known that lipids, and in particular phospholipids, are essential components of all cell membranes, including both the plasma ...

Phospholipids in ram semen: metabolism of plasmalogen and fatty acids.

Metabolism of hydroperoxy-phospholipids in human hepatoma HepG2 cells.

Two enzymatic mechanisms have been proposed for the metabolism of hydroperoxy-phospholipids: i) the combined action of phospholipase A2 and glutathione peroxidase, and/or ii) direct enzymatic reduction. The latter reaction may be catalyzed by selenium-dependent phospholipid hydroperoxide glutathione peroxidase and/or by glutathione S-transferase alpha. To study the pathway of this reaction, we ...

Metabolism of phospholipids by spermatozoa and seminal plasma.

1. The hydrolysis of added (32)P-labelled phospholipids by whole ram and bull semen and the separated spermatozoal and plasma components was examined. 2. The ethanolamine phosphoglycerides were rapidly attacked by washed spermatozoa, forming predominantly glycerylphosphorylethanolamine, but with whole semen and seminal plasma a lysophosphatidylethanolamine was also detected. 3. The hydrolysis o...