Table II.
Relative contributions to relaxation in young and older adult myocytes.
SR Ca2+-ATPase (%) | NCX (%) | Slow Mechanisms (%) | ||||
---|---|---|---|---|---|---|
Young | Adult | Young | Adult | Young | Adult | |
TG-ssTnI | 81.12±2.8 | 92.65±0.63 | 16.02±2.75 | 4.87±0.6 | 3.35±0.42 | 2.5±0.35 |
NTG | 92.70±1.02 * | 90.9±0.98 | 6.9±0.9 ** | 5.5±0.7 | 1.4±0.09* | 3.4±0.32 |
p<0.05 (NTG relative to TG-ssTnI),
p<0.01 (NTG relative to TG-ssTnI).