目的观察多聚ADP 核糖聚合酶（PARP）在脑缺血再灌流损伤中的表达，探讨PARP在细胞凋亡中的作用。

Objective: To observe the expression of poly (ADP-ribose) polymerase (PARP) in focal cerebral ischemia with reperfusion injury and explore the role of PARP in apoptosis.

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聚合性多官能羧酸（简称聚羧酸）作为环保型纸张湿强剂的研究已得到一定的重视，并取得了可喜的成绩。

Polymeric multifunctional carboxylic acids as a kind of environmentally benign wet- strength agents were recognized. We got some delightful achievement on its research.

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