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Reduction of active elastase concentration by means of immobilized inhibitors: A novel therapeutic approach

机译:通过固定化抑制剂降低活性弹性蛋白酶的浓度:一种新颖的治疗方法

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摘要

The inhibitory power of three different active Nylon membranes, separately loaded with three different protease inhibitors, was studied with the aim of reducing the increased elastase concentration occurring during hemodialysis or extracorporeal blood circulation in patients under-going cardiopulmonary bypass. Chemical grafting was carried out to make the inert Nylon membrane suitable for the immobilization of the inhibitors. The behavior of immobilized alpha(1)-antitrypsin, bovine pancreatic trypsin inhibitor (BPTI), or elastatinal was separately studied. alpha(1)-Antitrypsin and BPTI were covalently immobilized by means of a diazotization process, whereas elastatinal was covalently attached -via a condensation process mediated by glutaraldehyde. The inhibitory power of each membrane type was studied as a function of the amount of immobilized inhibitor and temperature. All active membranes have shown good inhibitory power. The most efficient membrane was that loaded with alpha(1)-antitrypsin, the less efficient that with BPTI.
机译:研究了三种不同活性尼龙膜的抑制能力,分别负载了三种不同的蛋白酶抑制剂,目的是减少进行心肺分流术的患者在血液透析或体外血液循环过程中增加的弹性蛋白酶浓度。进行化学接枝以使惰性尼龙膜适合于抑制剂的固定化。固定的alpha(1)-抗胰蛋白酶,牛胰胰蛋白酶抑制剂(BPTI)或弹性蛋白的行为分别进行了研究。 α(1)-抗胰蛋白酶和BPTI通过重氮化过程共价固定,而弹性蛋白通过戊二醛介导的缩合过程共价连接。研究了每种膜类型的抑制能力与固定化抑制剂量和温度的关系。所有活性膜均显示出良好的抑制能力。最有效的膜是负载有alpha(1)-抗胰蛋白酶的膜,而BPTI的效率较低。

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