Fig 2: RH specifically represses hippocampal TRPC6 channel in diabetic mice. (A) Relative TRPC6 mRNA expression (n = 6) in PC12 cells cultured in medium with normal glucose concentration (NG, 5.6 mM) or medium with high glucose concentration (HG, 25 mM). NG+LG, cells cultured in NG medium and received three times of low glucose stimulation (12 hours per times, LG, 3.0 mM); HG+LG, cells cultured in HG medium and received three times of low glucose stimulation (12 hours per times, LG, 3.0 mM). (B) Representative Western blots of TRPC6 protein in PC12 cells in four groups. GAPDH served as a loading control. Quantitative data were shown on the right (n = 4). (C) Relative mRNA expression levels of TRPC6 in hippocampus from nondiabetic (ND) mice, ND mice with recurrent moderate hypoglycemia (ND-RH), mice with STZ-induced type 1 diabetes mellitus (DM), and DM mice with RH (DM-RH) (n = 6 samples from six mice). (D) Representative Western blots of TRPC6 in hippocampus. GAPDH served as a loading control. Quantitative results are shown on the right (n = 3 tissues from three mice). TPRC6-/-, TRPC6 global knockout mice. (E) Relative mRNA expression levels of TRPC1, TRPC3, TRPC4, TRPC5, and TRPC7 in hippocampus (n = 6–8 samples from four mice). *P < .05, **P < .01, ***P < .001. Statistical significance was assessed using a one-way ANOVA or Kruskal-Wallis test