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. Author manuscript; available in PMC: 2010 Jan 12.
Published in final edited form as: Exp Neurol. 2007 Apr 4;206(1):70–79. doi: 10.1016/j.expneurol.2007.03.026

Figure 5.

Figure 5

Synapse per neuron ratio in the CA1 stratum radiatum of Fischer 344 x Brown Norway rats across life span in ad libitum fed (AL, open bars) and caloric restricted (CR, filled bars) rats. Two-way ANOVA reveals no main effect of age or diet for total synapses (A) or multiple spine bouton (MSB) synapses (B) in this brain region (ps > 0.05), indicating a maintenance of total as well as MSB synapses throughout life for both CR and AL rats. These data are presented as mean ± standard error of the mean of six animals per experimental condition.