Research Article

Cardiomyocyte-Restricted Deletion of PPARβ/δ in PPARα-Null Mice Causes Impaired Mitochondrial Biogenesis and Defense, but No Further Depression of Myocardial Fatty Acid Oxidation

Table 1

Hemodynamic measurement of isolated working heart.

ParametersTMCMPaTMPDTMPDPA

HR431 ± 20435 ± 22410 ± 23406 ± 16
LVPsys (mmHg)110.8 ± 3.9110.5 ± 2.394.7 ± 5.6*105.0 ± 1.7
LVEDP (mmHg)7.8 ± 1.87.8 ± 1.69.8 ± 212.5 ± 2.8
LVPdia (mmHg)2.4 ± 1.33.7 ± 1.25.7 ± 1.87.3 ± 3.4
LVPamp (mmHg)108.4 ± 3.8106.8 ± 2.684.0 ± 5.7**91.7 ± 5.3*
dLVP  d 𝑡 m a x (mmHg/s)6691 ± 5185999.7 ± 3615154 ± 332*5500.9 ± 683.7
−dLVP  d 𝑡 m i n (mmHg/s)−5666 ± 428−4741 ± 330.6−4635.8 ± 338−4836.2 ± 614.9

Heart rate: HR; left ventricular systolic pressure: LVPsys; left ventricular end-diastolic pressure: LVEDP; left ventricular diastolic pressure: LVPdia; left ventricular developed pressure: LVPamp; left ventricular developed pressure; first derivative (dLVP d 𝑡 m a x and dLVP d 𝑡 m i n ), * 𝑃 < 0 . 0 5 versus TMCM, 𝑛 = 5 - 8 .