V2EX factor vii

Factor VII

定义 Definition

Factor VII(凝血因子VII):血液凝固系统中的一种关键蛋白(丝氨酸蛋白酶原),主要在外源性凝血途径中发挥作用。它与组织因子(Tissue Factor)结合后被激活,进而启动凝血级联反应,帮助止血。临床上,Factor VII缺乏可导致出血倾向;重组活化因子VII(rFVIIa)可用于某些止血治疗。

发音 Pronunciation

/fktr svn/
/fktr vi a a/

例句 Examples

Factor VII helps the blood clot after an injury.
凝血因子VII有助于在受伤后让血液凝固。

In severe bleeding, doctors may measure Factor VII activity to assess problems in the extrinsic coagulation pathway.
在严重出血时,医生可能会检测凝血因子VII的活性,以评估外源性凝血途径是否存在问题。

词源 Etymology

Factor”在医学语境里常指“(凝血)因子/要素”,来自拉丁语 factor(“做事者、执行者”之意),引申为“起作用的成分”。“VII”是罗马数字“7”。“Factor VII”这一命名源于早期对凝血相关成分的编号体系,用以区分不同凝血因子。

相关词 Related Words

文学与著作中的用例 Literary Works

  • Harrison’s Principles of Internal Medicine(《哈里森内科学》)
  • Robbins & Cotran Pathologic Basis of Disease(《罗宾斯-科特兰病理学基础》)
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》)
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