Exogenous NR2B-expressing cells are more dynamic than control or exogenous NR2A-expressing cells. Exogenous NR2B-expressing cells are more dynamic than.

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Exogenous NR2B-expressing cells are more dynamic than control or exogenous NR2A-expressing cells. Exogenous NR2B-expressing cells are more dynamic than control or exogenous NR2A-expressing cells. A, Images and drawings of representative cells imaged every 2 h over 8 h, 1 d after single-cell electroporation. Axons present in the images are not shown in the drawings. B, Quantification of branch dynamics in relation to a reference time point (see diagram inset with time point t4 as an example) categorizes dynamic events in the context of the time points immediately before and after the reference time point [addition, loss, stable, transient, respectively (in percent): control, 26.67 ± 2.64, 22.67 ± 2.71, 36.02 ± 1.47, 42.01 ± 1.37; NR2A, 23.78 ± 2.7, 21.8 ± 2.85, 36.6 ± 1.56, 43.88 ± 1.89; NR2B, 25.56 ± 3.03, 24.93 ± 3.37, 31.82 ± 1.31, 45.77 ± 1.9; *p < 0.05]. C, Analysis of the persistence of branches present at t0 [see diagram inset; t0→t2, →t4, →t6, and →t8, respectively (in percent): control, 47.65 ± 3.65, 32.99 ± 3.11, 27.32 ± 2.41, 22.31 ± 2.55; NR2A, 45.44 ± 2.16, 32.7 ± 2.21, 27.06 ± 2.3, 22.21 ± 2.44; NR2B, 39.52 ± 1.99, 26.55 ± 1.76, 19.98 ± 1.52, 16.7 ± 1.16; *p < 0.05]. D, Analysis of the fraction of all transient branches at any single time point (see diagram inset; control, 54.56 ± 1.67%; NR2A, 53.63 ± 2.87%; NR2B, 57.55 ± 2.0%; *p < 0.05). E, Analysis of the life times of transient branches according to their number of appearances during the imaging protocol [number of appearances 1, 2, 3 (in percent): control, 87.25 ± 0.74, 10.55 ± 0.64, 2.2 ± 0.28; NR2A, 89.85 ± 1.19, 8.85 ± 1.13, 1.3 ± 0.4; NR2B, 88.28 ± 1.61, 10.85 ± 1.76, 0.87 ± 0.31; *p < 0.05]. Error bars are SEM and all statistical tests are Mann–Whitney U tests. Rebecca C. Ewald et al. J. Neurosci. 2008;28:850-861 ©2008 by Society for Neuroscience