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Lipid Composition of Human Parotid Salivary Gland Stones
B.L. Slomiany
Gastroenterology Research Laboratory, Department of Medicine, New York Medical College, Research Center, Metropolitan Hospital, New York, New York 10029
V.L.N. Murty
Gastroenterology Research Laboratory, Department of Medicine, New York Medical College, Research Center, Metropolitan Hospital, New York, New York 10029
M. Aono
Gastroenterology Research Laboratory, Department of Medicine, New York Medical College, Research Center, Metropolitan Hospital, New York, New York 10029
A. Slomiany
Gastroenterology Research Laboratory, Department of Medicine, New York Medical College, Research Center, Metropolitan Hospital, New York, New York 10029
I.D. Mandel
Division of Preventive Dentistry, School of Dental and Oral Surgery, Columbia University, New York, New York 10032
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.
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Journal of Dental Research, Vol. 62, No. 8,
866-869 (1983)
DOI: 10.1177/00220345830620080201

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