目的研究尿甘氨酰脯氨酸二肽氨基肽酶（GPDA）诊断老年急性脑卒中患者早期肾损害的临床应用价值。

Objective To study the clinical value of glycylproline dipeptidyl aminopeptidase(GPDA) in diagnosis of early kidney injury in the elderly with acute stroke.

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目的：探讨血清甘氨酰脯氨酸二肽氨基肽酶（GPDA）活性测定对胃癌的诊断价值及方法学改良。

Objective:To study the improvement in method of testing activities of glycylproline dipeptidylaminopeptidase(GPDA) and its value in diagnosis of gastric carcinoma.

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目的：为了解人肝癌组织及血清中甘氨酰脯氨酸二肽氨基肽酶(GPDA)同工酶变化，探讨其临床意义。

Objective: To study changes of GPDA isoenzyme in serum and hepatic tissues in patients with primary hepatic carcinoma and explore the clinical significance.

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