Table 2.

Effects of ischemia and reperfusion on GDH and KGDM activities

Protocol	n	GDH	KGDH
8-month old
Perfused	7	38.4  ±  4.9	98.0 ± 16.9
Ischemic	6	36.5  ±  4.0	99.6 +  3.5*
Reperfused	6	35.4  ±  2.7	86.7 +  8.9*‡
26-month old
Perfused	6	36.0  ±  6.8	95.9 ±  2.7
Ischemic	6	35.9  ±  3.6	94.7 ± 11.0†
Reperfused	6	34.8  ±  5.3	70.8 ±  8.4†‡

Perfusion, ischemia, and reperfusion protocols were performed as described in Materials and Methods. Enzyme activities are expressed as nmol of NADH⋅min⁻¹⋅mg⁻¹ and values represent the mean ± SD. P values (determined from paired t test) where like symbols indicate values compared. KGDH: ∗, ≤0.005; †, ≤0.001; ‡, ≤0.007.