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TG2 transgenic mice have time-dependent cardiac performance deficits. NTG and TG2 mice were examined by echocardiographic analyses in a longitudinal manner from 6 weeks to 30 weeks of age. Data represent means ± SE for transgenic mice (n = 8 to 12) and NTG mice (n = 10 to 15). Dotted lines represent 95% confidence intervals for age-matched NTG mice that did not show any significant age dependencies. *, P < 0.05 TG versus NTG.
