Table 2.

Effect of age on TNNT3 splice forms.

Tnnt3 splice forms	Relative abundance			Effect of Age
				One-way ANOVA
	2-month	9-month	18-month	F statistic	p value
α1	0.120 ± 0.024	0.305 ± 0.052*	0.509 ± 0.033*#	26.01	< 0.0001
α2	0.020 ± 0.003	0.037 ± 0.006	0.072 ± 0.003*#	35.52	< 0.0001
α3	0.016 ± 0.001	0.019 ± 0.001	0.029 ± 0.002*#	24.04	< 0.0001
β1	0.020 ± 0.002	0.008 ± 0.001*	0.005 ± 0.001*	23.21	< 0.0001
β2	0.009 ± 0.001	0.008 ± 0.001	0.014 ± 0.002#	4.985	0.0198
β3	0.360 ± 0.023	0.371 ± 0.048	0.264 ± 0.022	2.731	0.0936
β4	0.023 ± 0.005	0.034 ± 0.007	0.017 ± 0.003	2.326	0.1279
β5	0.084 ± 0.013	0.015 ± 0.006*	0.003 ± 0.001*	25.99	< 0.0001
β6	0.084 ± 0.004	0.055 ± 0.010*	0.045 ± 0.005*	8.911	0.0023
β7	0.120 ± 0.011	0.047 ± 0.011*	0.025 ± 0.003*	27.84	< 0.0001
β8	0.044 ± 0.007	0.023 ± 0.005*	0.004 ± 0.001*	15.43	0.0003
β9	0.119 ± 0.015	0.034 ± 0.010*	0.013 ± 0.002*	25.59	< 0.0001
PC1		*	*#	24.95	< 0.0001
PC2				0.3716	0.6958

The mean ± S.E.M relative abundance of the TNNT3 splice forms in gastrocnemius muscle of 2-, 9-, and 18-month old rats is presented. The first two principal components and the results from one-way ANOVA for age effects are shown. Statistically significant differences (p<0.05) determined by Tukey’s post-hoc testing are indicated. n=6–7 per group.

^*compared to 2-month old rats;

^#compared to 9-month old rats.