Fig. 4.

A: Percent total ganglioside lipid abundance distributions of each observed ganglioside lipid class in the modified Svennerholm upper phase (open bars) and monophasic (filled bars) retina lipid extracts, as determined by negative ionization mode high-resolution (R = 100,000)/accurate MS and MS/MS analysis (sample concentration corresponding to 1.0 mg/ml of original retina tissue extracted). B: Percent ganglioside GD3 lipid abundance distributions of the individual ganglioside GD3 species in the modified Svennerholm upper phase (open bars) and monophasic (filled bars) retina lipid extract. Data represent the mean abundance ± standard deviation from n = 3 separate lipid extracts. *P < 0.05.