JCS -- Freire et al. 117 (18): 4067 Figure IG3

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Fig. 3. Astrocytes derived from E16 or P0 present different surface potentials. After mechanical dissociation of monolayers, astrocytes derived from E16 ( ${square}$ ) or P0 ( ${blacktriangleup}$ ) had their zeta ( ${xi}$ ) measured by cell electrophoresis. Values of Pzeta at different pHs are plotted in the main panel. The inset shows values of ${xi}$ measured immediately after treatment with neuraminidase and 30 or 60 minutes after removal of the enzyme. ^*P<0.01; ^**P<0.001.