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. 2012 Mar 14;61(4):761–772. doi: 10.2337/db11-1423

FIG. 7.

FIG. 7.

A: Neuronal densities in CA1–CA4 in hippocampi from control, BB/Wor, and C-peptide–replaced BB/Wor rats (n = 4 per group). In CA1 and CA2 of BB/Wor rats, neuronal densities were significantly decreased compared with controls. C-peptide replacement resulted in a significant protection against neuronal loss in CA1. No significant differences were seen for the groups in CA3 and CA4. *P < 0.05 vs. BB/Wor rats. Data are from Ref. 74. B: The protein expression of Bax in hippocampi in four individual animals per group. Bax was significantly increased in BB/Wor rats. C-peptide replacement significantly (*P < 0.05 vs. untreated BB/Wor rats) prevented this increase. Data are from Ref. 74. C: Expression of hippocampal presynaptic synaptophysin was significantly decreased in 4-month diabetic rats and was prevented by C-peptide replacement from onset of diabetes (***P < 0.001 vs. untreated BB/Wor rats). Data are from Ref. 10.