Table 3. – Enzymes involved in cardiac energy metabolism.
| Variable | SM (n = 8) | SOJ (n = 8) | IM (n = 4) | IOJ (n = 4) | p (I) | p (OJ) | p (I×OJ) |
|---|---|---|---|---|---|---|---|
| PFK (nmol/g) | 128±17.0 | 112±24.6 | 139±26.0 | 178±26.0aB | <0.001 | 0.257 | 0.011 |
| LDH (nmol/mg) | 88.5±18.7 | 82.6±18.1 | 111±18.6 | 134±16. | <0.001 | 0.320 | 0.092 |
| PDH (nmol/g) | 344±53.7 | 385±31.1 | 345±100 | 341±42.0 | 0.386 | 0.461 | 0.376 |
| OHADH (nmol/mg) | 33.2±6.22 | 33.9±6.22 | 23.8±8.40 | 24.5±2.80 | 0.003 | 0.798 | 0.992 |
| CS (nmol/mg) | 50.0±6.22 | 49.4±6.51 | 34.5±7.40 | 40.5±4.80 | <0.001 | 0.350 | 0.254 |
| ATP synthase (nmol/mg) | 21.0±3.11 | 27.8±5.37 | 11.4±1.20 | 15.9±4.40 | <0.001 | 0.005 | 0.532 |
Data are expressed as mean ± standard deviation. n: numbers of animals included in each experimental group. SM: sham animals that received maltodextrin; SOJ: sham animals that received orange juice; IM: infarcted animals that received maltodextrin; IOJ: infarcted animals that received orange juice. PFK: phosphofructokinase; LDH: lactate dehydrogenase; PDH: pyruvate dehydrogenase; OHADH: 3-hydroxyacyl coenzyme-A dehydrogenase; CS: citrate synthase; ATP: adenosine triphosphate. pI: p value for the effect of infarction. pOJ: p value of orange juice intake effect. pIxOJ: p value of interaction. Bold numbers represent statistically significant effects.a: IM≠IOJ;b: SM≠SOJ;A: SM≠IM eB:SOJ≠IOJ.