丙酮酸磷酸双激酶是C4光合途径中的专一性酶，在C4光合作用中起着重要作用。

Pyruvate orthophosphate dikinase (PPDK) is a key enzyme of C4 photosynthesis pathway. It plays an important role in C4 photosynthesis.

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目的为进一步探讨尿激酶和藻酸双酯钠（PSS）对脑梗死的治疗作用机制。

Objective To explore the mechanism of effect in the rabbits model with cerebral infarction treated by Urokinase and PSS. Methods 32 rabbits have divided into 3 groups.

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