目的：探讨铅接触者尿绒毛膜酶活性的变化及其意义。

Objective: To investigate the changes of the activities of urine brush border enzymes in lead exposed workers and their significances.

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结论：尿绒毛膜酶活性升高是铅致早期肾损害的敏感指标。

Conclusion: The rising oft he activity of enzymuria is a sensitivity indicator to kidney damage by lead.

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目的研究基质金属蛋白酶- 9 (MMP - 9)和基质金属蛋白酶抑制物- 1 (TIMP - 1)在早孕期蜕膜和绒毛中的表达特点。

Objective to study the expression of matrix metalloproteinase-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1) proteins in the decidua and villi of the early pregnancy.

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