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BH4 and BH2 levels (A) and ratio of BH4 to BH2 (B) in BN/Mcw and SS/Mcw rat hearts. In BN/Mcw or SS/Mcw preischemia group, hearts were harvested before ischemia. In BN/Mcw or SS/Mcw reperfusion group, hearts were harvested after 35 min global ischemia and 120 min reperfusion. The data were shown as means ± SD. *P < 0.05 vs. SS/Mcw preischemia group; #P < 0.05 vs. BN/Mcw preischemia group; $P < 0.05 vs. SS/Mcw reperfusion group (n = 8/group).
