Table S3.

Organ morphometry measurements

	MCM		Fgf13 KO
Organ morphometry	Sham 12w	TAC 12w	Sham 12w	TAC 12w
BW, g	27.9 ± 0.8	27.8 ± 1.0	25.2 ± 1.2	25.2 ± 0.7
HW, mg	218 ± 6	298 ± 18*	182 ± 8	239 ± 12*
HW/BW, mg/g	7.9 ± 0.3	10.9 ± 0.7*	7.3 ± 0.3	9.4 ± 0.4*
n	17	11	15	14

BW, body weight; HW, heart weight. *P < 0.05 vs. sham mice of same genotype. Comparisons were made using two-way ANOVA with Sidak’s test for multiple comparisons.