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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Exp Gerontol. 2012 Jan 25;47(4):304–316. doi: 10.1016/j.exger.2012.01.004

Table 2.

Charge movement Intracellular Ca2+
Mice Qmax, μC/μF V1/2Q, mV K ΔF/Fmax V1/2F, mV K
3-M
WT (n = 15–17)* 		30.5 ± 3.4 7.6 ± 0.92 14.2 ± 1.8 0.61 ± 0.08 12.9 ± 0.19 15.4 ± 1.8
3-M
JP45KO (n = 16–20)* 		17.8 ± 2.6# 6.4 ± 0.75 12.0 ± 1.5 0.39± 0.06# 13.0 ± 0.15 16.3 ± 1.9
12-M
JP45KO (n = 10) 		24.4 ± 0.8 5.6 ± 1.7 16 ± 1.2 0.43 ± 0.03 7.5 ± 0.51 11.9 ± 0.44
12-M WT (n = 11) 31.2 ±0.5# 1.1 ± 1.8 13.6 ± 1.6 0.54 ± 0.06 15.7 ± 0.9 11.3 ± 0.75
18-M
JP45KO ( n = 12) 		24.9 ± 0.6 5.9 ± 1.1 14.7 ± 0.8 0.42 ± 0.05 6.9 ± 0.9 12.3 ± 0.74
18-M WT (n = 14) 22.4 ± 0.5 5.1 ± 1.3 8.6 ± 0.8 0.44 ± 0.07 7.6 ± 1.2 9.8 ± 1.0

Values are mean ± SEM. “n” indicates the number of fibers.

#

P < 0.05 statistically significant difference between WT and JP45KO mice.

*

Data from ref. (Delbono et al., 2007).