Research Article

Phytic Acid Protects against 6-Hydroxydopamine-Induced Dopaminergic Neuron Apoptosis in Normal and Iron Excess Conditions in a Cell Culture Model

Figure 2

Protection of IP6 against 6-OHDA-induced apoptosis in the iron-excess condition in vitro cell culture model. Cell apoptosis was measured as caspase-3 activity (FU/mg protein, (a) from one experiment) with 30 and 100 μmol/L IP6. DNA fragmentation (AU/mg protein, (b) from one experiment) and Hoechst nuclear staining (c) were tested with only 30 μmol/L of IP6. ANOVA with Tukey's Multiple Comparison test was used to detect the differences among the treatments in (a) and (b), and means with different letters were significantly different ( ). The top panel in C represents 20x magnification and the bottom panel represents 60x magnification. Apoptotic nucleus is indicated with an arrow.
431068.fig.002a
(a)
431068.fig.002b
(b)
431068.fig.002c
(c)