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Journal of Lipid Research, Vol 30, 121-127, Copyright © 1989 by Lipid Research, Inc.

ARTICLES

Simultaneous fractionation of four placental neutral glycosphingolipids with a continuous gradient

P Strasberg, A Grey, I Warren and MA Skomorowski
Department of Neurosciences, Hospital for Sick Children, Toronto, Canada.

We describe a method for isolating milligram quantities of the four neutral glycosphingolipids, glucocerebroside, lactosylceramide, traiosylceramide, and globoside, from human placental tissue. This procedure is carried out on a silicic acid column eluted with a continuous chloroform-methanol gradient (19:1 to 4:1); the four glycosphingolipids elute as separate fractions with no need for further separation. The method is simple, rapid, and yields sufficient material to use as analytical standards for several hundred runs. The lipids have been identified by NMR spectroscopy. Placental tissue is freely available in most centers and is an excellent untapped source for these compounds. Given that lactosylceramide is not commercially available and that triaosylceramide (ceramide trihexoside) cannot be obtained in a reliable state, this technique represents an effective solution to this dilemma.
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