What does it take to make the perfect clot?

被引:273
作者
Monroe, DM
Hoffman, M
机构
[1] Durham Vet Affairs Med Ctr, Pathol & Lab Med Serv 113, Durham, NC 27705 USA
[2] Duke Univ, Dept Pathol, Med Ctr, Durham, NC 27706 USA
[3] Univ N Carolina, Dept Med, Chapel Hill, NC USA
[4] Univ N Carolina, Carolina Cardiovasc Biol Ctr, Chapel Hill, NC USA
关键词
hemostasis; partial thromboplastin time; platelets; prothrombin time; tissue factor;
D O I
10.1161/01.ATV.0000193624.28251.83
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The coagulation process has been conceptualized as being primarily dependent on adequate levels of the coagulation proteins. This concept was based on the clear relationship between the bleeding tendency and factor levels in hemophilia. The field is now evolving toward conceptualizing coagulation as being actively regulated by the specialized cellular components of the process. Rather than conceiving coagulation as only a "cascade" of proteolytic reactions, the coagulation reactions occur as overlapping steps on cell surfaces. Components of the old "extrinsic'" and "intrinsic" pathways of coagulation can be thought of as participating in the initiation and propagation of coagulation reactions, respectively. Thus, these pathways are not redundant as they are portrayed in the cascade model, but play distinct and complementary roles. Our understanding of how specific cellular features control the processes of hemostasis and thrombosis is developing rapidly. This review discusses some aspects of the cellular control of coagulation.
引用
收藏
页码:41 / 48
页数:8
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