Figure 4left panels. Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected in MO3.13 cells (A in absence or in presence of 10 μM MK-801 or 150 μM APV right panels. Quantification of the oscillation index in MO3.13 cells (A in absence or in presence of 10 μM MK-801 or 150 μM APV Quantification of the initial [Ca2+]i increase elicited by D-Asp measured as ∆% of peak versus basal values in absence or in presence of 10 μM MK-801 or 150 μM AP in M03.13 cells (a MK-801 and APV were preincubated 10 minutes before registration Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by using: in A and a, one way-ANOVA P<0.001 followed by Bonferroni post hoc test, *P<0.05 versus control (basal value), ˄P<0.05 versus D-Asp. Data are reported as mean of 23-30 cells in each group, n=3 biological replicate left panels. Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected i primary OP (B) in absence or in presence of 10 μM MK-801 or 150 μM APV right panels. Quantification of the oscillation index i primary OPC (B) in absence or in presence of 10 μM MK-801 or 150 μM APV Quantification of the initial [Ca2+]i increase elicited by D-Asp measured as ∆% of peak versus basal values in absence or in presence of 10 μM MK-801 or 150 μM APV -i primary OPC (b). MK-801 and APV were preincubated 10 minutes before registration Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by using B and b, one way-ANOVA, P<0.001 followed by Bonferroni post hoc test, *P<0.05 versus control (basal value), ˄P< 0.05 versus D-Asp. Data are reported as mean of 20-23 cells in each group, n=3 biological replicate left panels; Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected in MO3.13 cells (C in absence or in presence of 30 nM YM-244769 or 100 nM BED right panels; Quantification of the oscillation index in MO3.13 cells (C in absence or in presence of 30 nM YM-244769 or 100 nM BED d, Quantification of the initial [Ca2+]i increase elicited by D-Asp measured as ∆% of peak versus basal values in absence or in presence of 30 nM YM-244769 or 100 nM BED in M03.13 cells (c YM-244769 or BED were preincubated 10 minutes before registration Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by using C and c, one way-ANOVA P<0.001 followed by Bonferroni post hoc test, *p< 0.05 versus control (basal value), ˄ P< 0.05 versus D-Asp. Data are reported as mean of 19-30 cells in each group, n=3 biological replicate left panels; Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected i primary OPC (D) in absence or in presence of 30 nM YM-244769 or 100 nM BED D, right panels; Quantification of the oscillation index i primary OPC (D) in absence or in presence of 30 nM YM-244769 or 100 nM BED Quantification of the initial [Ca2+]i increase elicited by D-Asp measured as ∆% of peak versus basal values in absence or in presence of 30 nM YM-244769 or 10 nM BED -i primary OPC (d). YM-244769 or BED were preincubated 10 minutes before registration Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by usin D and d, one way-ANOVA P<0.001 followed by Bonferroni post hoc test, *P< 0.05 versus control (basal value), ˄P< 0.05 versus D-Asp. Data are reported as mean of 18-20 cells in each group, n=3 biological replicate  E. left panel; Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected in MO3.13 cells in presence of siCtl or sincx3 silencing. E, right panel; Quantification of the oscillation index in MO3.13 cells in absence or in presence of sincx3. e, Quantification of the initial [Ca2+]i increase elicited by D-Asp and measured as ∆% of peak versus basal values in absence or in presence of sincx3 Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by usin E and e, one way-ANOVA P<0.001 followed by Bonferroni post hoc test, *P< 0.05 versus sictl, ˄P< 0.05 versus D-Asp + sictl. Data are reported as mean of 25-30 cells in each group, n=3 biological replicate  F. left panel. Superimposed single-cell traces representative of the effect of 100 μM D-Asp on [Ca2+]i detected in primary OPC obtained from wild-type ncx3+/+, heterozygous ncx3 +/-, and knock-out ncx3-/- mice. F. right panel. Quantification of the oscillation index elicited by D-Asp in primary mouse OPC obtained from ncx3+/+, ncx3 +/-, and ncx3-/- mice. f, Quantification of the initial [Ca2+]i increase measured as ∆% of peak versus basal values Data information: The values represent the mean ± S.E.M from 3 independent experimental sessions. Level of significance was determined by using F and f, one way-ANOVA P<0.001 and P=0.003, respectively, followed by Bonferroni post hoc test, *P< 0.05 versus basal value, ˄P< 0.05 versus ncx3+/+ and ncx3+/-. Data are reported as mean of 10-19 cells in each group, n=3 biological replicates