Figure 6.
Behavioral and synaptic phenotypes in Shank3G/GCreTam− mice are not rescued by treatment with six weeks of tamoxifen diet. Nesting behavior is not rescued by tamoxifen treatment in Shank3G/GCreTam− mice with regard to nest width (A), although there is no main effect of genotype with regard to nest height (B). Marble burying (C) remains impaired in tamoxifen-treated Shank3G/GCreTam− mice with decreased number of marbles buried compared to controls. Locomotor activity also remains decreased in tamoxifen-treated Shank3G/GCreTam− mice at the start of the open field test (D). Latency to fall off the rotarod (E) remains decreased in tamoxifen-treated Shank3G/GCreTam− mice compared to controls. Shank3+/+ n = 25, Shank3+/G n = 19, Shank3G/G n = 16. F, Tamoxifen treatment does not rescue synaptic transmission in Shank3G/GCreTam− mice. Inset, Average of five consecutive traces at each stimulus intensity 0–350 μA in 50-μA steps from Shank3+/+ (top) and Shank3G/G (bottom) mice treated with six weeks of tamoxifen diet; scale bar = 0.25 mV, 5 ms. Shank3+/+ n = 22 slices from eight mice, Shank3G/G n = 20 slices from six mice; *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001.