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Plasminogen Free Fibrin Sealant

机译:不含纤溶酶的纤维蛋白封闭剂

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摘要

An affinity chromatographic resin using a tranexamic ligand for plasminogen removal effectively removed 96-99% of the plasminogen from the BAC component of Quixil/Crosseal. The resulting plasminogen free fibrin sealant was proven to be safe and effective in animal models of hemostasis. No neurotoxic effects were found in a rabbit craniotomy study. Clots formed from this fibrin sealant were more stable in vitro in the presence of urokinase than clots prepared from other fibrin sealants containing plasminogen plus a fibrinolytic inhibitor. The degradation kinetics of the fibrin sealant in vivo was not significantly different from three other marketed sealants (Quixil, Tisseel and Tissucol). In addition, the sealant reduced adhesion formation in a rabbit uterine horn model of adhesion prevention, where treated animals exhibited fewer adhesions than untreated controls.
机译:使用氨甲环磷酰胺配体去除纤溶酶原的亲和层析树脂可有效地从Quixil / Crosseal的BAC成分中去除96-99%的纤溶酶原。在止血动物模型中,所得的无纤溶酶原的纤维蛋白封闭剂被证明是安全有效的。在兔子开颅研究中未发现神经毒性作用。在存在尿激酶的情况下,由这种血纤蛋白封闭剂形成的凝块比由其他含有纤溶酶原加血纤蛋白溶解抑制剂的血纤蛋白封闭剂制备的血块在体外更稳定。纤维蛋白密封剂在体内的降解动力学与其他三种市售密封剂(Quixil,Tisseel和Tissucol)没有显着差异。此外,密封剂减少了兔子子宫角预防粘连模型中的粘连形成,在该模型中,经过处理的动物比未经处理的对照组表现出更少的粘连。

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