title: Molecular species of phosphatidylcholine from rat gastric mucosa.
abstract: Phosphatidylcholine of rat gastric mucosa were found to constitute about half of the total phospholipids. The composition of 20 molecular species accounting for approx. 90% of the total phosphatidylcholine was determined by specific enzymic hydrolyses and AgNO3 thin-layer and gas-liquid chromatography. Disaturated (dipalmitoyl) phosphatidylcholine made up about 31% of the total phosphatidylcholines. Other species which occurred in significant concentrations included 16:0/18:1, 18:0/18:1, 16:0/18:2, 18:0/18:2, 16:0/18:3, 18:0/18:3, 16:0/20:4, and 18:0/20:4. These results indicate that rat gastric mucosa is similar to lung in that both contain elevated amounts of dipalmitoyl phosphatidylcholine. Other similarities between these two tissues are discussed.
mesh_terms: D000818:Animals; D005227:Fatty Acids / Q000032:analysis; D005260:Female; D005753:Gastric Mucosa / Q000032:analysis*; D010713:Phosphatidylcholines / Q000032:analysis*; D011663:Pulmonary Surfactants / Q000032:analysis; D051381:Rats
chemical_list: D005227:Fatty Acids; D010713:Phosphatidylcholines; D011663:Pulmonary Surfactants