Research Article

Toll-Like Receptor 9 Promotes Survival in SERCA2a KO Heart Failure Mice

Table 1

Echocardiographic parameters in SERCA2a KO, SERCA2a/TLR9 KO, and control mice 7.6 weeks after gene excision.

ControlsHF
WT ()TLR9 KO ()SERCA2a KO ()SERCA2a/TLR9 KO ()

LVEF (%)39.0 ± 5.144.9 ± 5.642.2 ± 2.645.2 ± 4.2
SV (μl)/TL1.5 ± 0.21.7 ± 0.21.2 ± 0.11.2 ± 0.1
IVS;d (mm)/TL0.04 ± 0.0020.03 ± 0.0020.04 ± 0.0020.04 ± 0.002
IVS;s (mm)/TL0.06 ± 0.0020.04 ± 0.0040.05 ± 0.0020.04 ± 0.003
LVPW;d (mm)/TL0.05 ± 0.0040.05 ± 0.0060.05 ± 0.0020.05 ± 0.003
LVPW;s (mm)/TL0.05 ± 0.0040.06 ± 0.010.06 ± 0.0030.06 ± 0.004
LVvol;d (μl)/TL3.7 ± 0.33.8 ± 0.42.9 ± 0.22.6 ± 0.2
LVvol;s (μl)/TL2.3 ± 0.32.2 ± 0.41.7 ± 0.21.5 ± 0.2

LV: left ventricle; EF: ejection fraction; SV: stroke volume; d: diastolic; s: systolic; IVS: interventricular septum thickness; LVPW: LV posterior wall thickness; LVvol: LV volume; TL: tibia length (mm). The groups were compared using two-way ANOVA with Tukey’s multiple comparison test post hoc. Data are mean ± SEM. versus corresponding TLR9 KO control.