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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: J Mol Cell Cardiol. 2012 Oct 30;54:1–8. doi: 10.1016/j.yjmcc.2012.10.010

Table 1.

Characteristics of tension-pCa relationships in mouse myocardium due to PTU diet and alkaline phosphatase (−AP vs +AP) treatment. Results of repeated-measures ANOVA are presented as PTU effect, AP effect or PTU×AP interaction at P<0.05 level. Tdev = Tmax–Tmin.

SvEv (n=7) −AP SvEvPTU (6) −AP SvEv (7) +AP SvEvPTU (6) +AP ANOVA
Tmin (mN.mm−2) 4.04±0.36 3.03±0.52 2.67±0.29 2.60±0.30 AP
Tmax (mN.mm−2) 22.6±1.6 23.7±1.3 19.9±1.5 29.5±1.9† PTU, PTU×AP
Tdev (mN.mm−2) 18.6±1.5 20.7±1.4 17.3±1.4 26.9±1.8† PTU, PTU×AP
[Ca2+]50 (μM) 1.59±0.10 1.87±0.07 * 1.67±0.07 1.63±0.06
pCa50 5.80±0.03 5.73±0.02 * 5.78±0.02 5.79±0.02
nHill 3.81±0.17 4.33±0.18# 3.79±0.14 4.21±0.17# PTU

Differences reported at

#

P<0.10,

*

P<0.05,

†

P<0.01 by t-test against nonPTU-fed controls of same AP treatment.