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血浆组织蛋白酶活性及低血容量性休克在海蟾蜍脱水死亡中的作用。

Plasma cathepsin activity and the role of hypovolemic shock in dehydrational death in the toad, Bufo marinus.

作者信息

Kimmel P B

机构信息

Department of Biology, Portland State University, OR 97207.

出版信息

Comp Biochem Physiol A Comp Physiol. 1988;90(1):127-33. doi: 10.1016/0300-9629(88)91017-1.

DOI:10.1016/0300-9629(88)91017-1
PMID:2900097
Abstract
  1. The pH- and activator-dependence of toad plasma cathepsin activity assayed by hemoglobin digestion was characteristic of cathepsins B1 and D. 2. Dehydration, even to the point of death, did not produce a significant elevation of plasma cathepsin activity over controls. 3. Toads were remarkably resistant to the effects of splanchnic artery ligation, which also did not produce significantly higher plasma cathepsin levels. 4. Cardiac depression via the production of a myocardial depressant factor by cathepsins does not appear to be an important factor in dehydrational death in toads.
摘要
  1. 通过血红蛋白消化法测定蟾蜍血浆组织蛋白酶活性,其对pH值和激活剂的依赖性具有组织蛋白酶B1和D的特征。2. 脱水,甚至达到死亡程度,与对照组相比,血浆组织蛋白酶活性并未显著升高。3. 蟾蜍对内脏动脉结扎的影响具有显著抗性,结扎后血浆组织蛋白酶水平也未显著升高。4. 组织蛋白酶产生心肌抑制因子从而导致心脏抑制,这似乎并非蟾蜍脱水死亡的重要因素。

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