Ca+2/Calmodulin-Dependent Protein Kinase Mediates Glucose Toxicity-Induced Cardiomyocyte Contractile Dysfunction
Figure 1
Mechanical property of adult rat cardiomyocytes cultured for 6 and 12 hours in a serum-free medium with normal glucose (NG: 5.5 mM) or high glucose (HG: 25.5 mM). (a) Resting cell length, (b) peak shortening (PS) amplitude normalized to cell length, (c) maximal velocity of shortening (+dL/dt), (d) maximal velocity of relengthening (−dL/dt), (e) time to PS (TPS), and (f) time to 90% relengthening (TR90). Mean ± SEM, and 41-42 cells per group at 6 and 12 hours, respectively, * versus NG-6 Hr group, # versus NG-12 Hr group.