Effects of long chain PUFA on differentiation of NSCs. NSCs were treated with 1 μM long chain PUFA bound to 0.05% BSA for 7 days and subjected to immunofluorescence and western blot analyses. NSCs were stained for MAP2 (green, mature neuron marker), Tuj-1 (green, early neuron marker), GFAP (red, glia marker) and nuclei (blue, DAPI), and visualized by fluorescence microscopy (A). The percentage of Tuj-1 and GFAP positive cells was evaluated using MetaMorph software (B). Western blot analysis was performed for MAP2, Tuj-1 and GFAP (C) and quantified by densitometry (D). The data are expressed as the mean ± SD of triplicates or quadruplicates, representing three to four independent experiments. a–c, Bars with different letter superscripts are significantly different (Bonferroni’s multiple comparison test, p<0.01).