mRNA expression of the transcription factor Etv5 along with its interacting partners Cop1, GDNF, Det1, Bcl6b, and Dusp6, represented in terms of fold difference up/down regulation. A, male hippocampus; B, male cerebellum; C, female hippocampus; and D, female cerebellum. * (p < 0.05), ** (p < 0.005), *** (p < 0.0005), **** (p < 0.00005), and NS (p > 0.05 = non-significant).