凝血系统中蛋白C抑制模型的周期解

The Periodic Solutions in the Model of the Inhibition of Protein C to Blood Coagulation System

蛋白Ｃ的抑制作用对凝血系统是非常重要的．对其深入研究发现当正负反馈同时发生时系统存在极限环．本文对极限环的存在性给出了严格的数学证明．此即说明凝血系统中存在着生物节律，这在医学上有着深远的意义．

The Inhibition of protein C is of great importance to blood coagulation system. The limit cycle can be found when positive and negative feedbacks occur at the same time. In this article we give a strictly mathematical proof for the existence of limit cycle. It shows that physiological rhythm exists in the blood coagulation system, and this fact is significant in madical science.