Figure 1.
Calpain 10 is downregulated and calpain 10 substrates accumulate in STZ rats four weeks after administration. A, Rat kidney cortex was immunoblotted for calpain 10 (75 kDa), calpain 1 (80 kDa), calpain 2 (80 kDa), and β-actin (42 kDa – loading control). B, PCR reactions were performed with cDNA for calpain 10, calpain 1 and for β-actin. C, Rat kidney cortex was immunoblotted for NDUFB8 (18 kDa), ATP synthase β (56 kDa). D, Rat kidney cortex was immunoblotted for Lon (100 kDa) and GAPDH (37 kDa – loading control). All blots were quantified by densitometric analysis. Data are represented as means ± SEM of % of control (N ≥ 3 for each group). Bars with * are statistically different from control and # are statistically different from STZ + Insulin (p ≤ 0.05).