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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: Hippocampus. 2012 Mar 21;22(8):1720–1732. doi: 10.1002/hipo.22007

Figure 6.

Figure 6

Daily RC3 and BDNF expression in the hippocampus of control and vitamin A-deficient rats. (A–B) Cosine fitting curves for normalized RC3 (A) and BDNF (B) mRNA levels throughout a day. Horizontal bars represent the distribution of light (open) and dark (closed) phases of a 24-h (ZT0-ZT24) photoperiod. Each point on the curves represents the mean ± SE of three pools of two hippocampus samples each at a given ZT (with ZT=0 when light is on). Significant daily variation was evaluated using one-way ANOVA followed by Tukey test with *P<0.05 and **P<0.01 when indicated means were compared to the corresponding maximal value in each group. (C) Representative patterns of PCR products at different ZTs throughout a day-night cycle.