Table 2.

Binucleated cardiomyocyte architectural parameters

Genotype	Age (months)	n (mice); n (cells)	Length (μ)	Width (μ)	Area (μ2)	Aspect ratio
+/+	1 m	4; 160	108.0 ± 21.2	20.8 ± 4.7	1981.3 ± 535.6	5.2
−/−		4; 177	110.9 ± 19.8	19.9 ± 4.6	1963.5 ± 513.0	5.6
+/+	4–6 m	6; 147	126.8 ± 28.0	24.8 ± 6.2	2802.3 ± 972.2	5.1
−/−		5; 119	107.6 ± 19.9	32.5 ± 7.0	2834.1 ± 721.9	3.3
I685T/I685T		4; 125	115.7 ± 24.2	28.9 ± 7.1	2846.2 ± 884.0	4.0
+/−		4; 170	131.3 ± 24.7	24.7 ± 5.7	2745.0 ± 824.7	5.3
K489R/−		4; 148	102.5 ± 22.4	33.5 ± 8.0	2827.0 ± 868.0	3.1
I685T/−		4; 142	112.8 ± 23.7	32.2 ± 8.4	2923.8 ± 961.7	3.5

Average (± standard deviation) cardiomyocyte lengths and widths and areas and calculated aspect ratios for the number of measured cells isolated from the number of mice indicated at the ages indicated. Statistical evaluations are shown in Figure 3A (4–6 months) and 3D (1 month).