Ganglioside pattern of normal human brain, from samples obtained at surgery : A study especially referred to alkali labile species

The ganglioside pattern from normal human temporal cortex and cerebellum has been studied in fresh specimens obtained at surgery.The analyses have been performed by two-dimensional thin layer chromatography with an intermediate ammonia treatment which is a methodology particularly suitable for resolving alkali labile gangliosides.Alkali labile gangliosides were detected in all the analyzed specimens and their content contributed to 23% and 11% of total lipid bound sialic acid, in temporal cortex and cerebellum, respectively.