Lipid composition of human parotid salivary gland stones.
The parotid gland stone matrix constitutes 20.2% of the stone dry weight and contains 8.5% of lipids. Of the total lipids, 74% are represented by neutral lipids, 17% by glycolipids, and 9% by phospholipids. The neutral lipids exhibit a high content of free fatty acids (52.7%) and cholesteryl esters (31.1%). The glycolipids are composed of simple glycosphingolipids (7.1%), and of neutral and sulfated glyceroglucolipids (92.9%). Phosphatidylethanolamine and diphosphatidylglycerol are the principal constituents of the phospholipid fraction.
D002849:Chromatography, Gas; D002855:Chromatography, Thin Layer; D006017:Glycolipids / Q000032:analysis; D006801:Humans; D008055:Lipids / Q000032:analysis*; D010305:Parotid Diseases / Q000378:metabolism*; D010743:Phospholipids / Q000032:analysis; D012465:Salivary Duct Calculi / Q000378:metabolism*
D006017:Glycolipids; D008055:Lipids; D010743:Phospholipids