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Figure 4: The effect of ouabain injection (10-11-10-4 M) on cortex (A), subcortex (B) and cerebellum (C) tissues’ hydration in two age groups. Curves with continuous line-effect of ouabain in young animals. Curves with dotted lineeffect of ouabain in the same tissues of old animals. Each point on lines shows the difference between hydration mean values of control and ouabain poisoned animals. Abscissas indicate ouabain doses, ordinates - difference between hydration mean values of control and ouabain poisoned animals. Error bars indicate the standard error of the mean (SEM) for three independent experiments. The symbols (*), (**) and (***) indicate P< 0.05, P<0.01 and P<0.001, respectively. A difference which is not statistically significant means that P>0.05. |