Koshy Abraham, Jeyakumari Mary
Department of Gastroenterology and Molecular Biology Unit, Institute of Population Health and Clinical Research, St. John's Medical College Hospital, Bangalore - 560 034, India.
Indian J Gastroenterol. 2006 May-Jun;25(3):140-2.
Factor V Leiden has been reported in 2%-30% of patients with portal vein thrombosis. This wide variation makes it difficult to assess the importance of factor V Leiden as a predisposing factor.
Factor V Leiden was determined by restriction fragment length polymorphism in 112 patients with portal vein thrombosis, 104 with deep vein thrombosis and 98 control subjects.
Only 3/112 (3%) patients with portal vein thrombosis had factor V Leiden, compared to 1/98 (1%) controls and 16/104 (15%) with deep vein thrombosis; of these, 3, 1 and 15, respectively, were heterozygous for this mutation.
Factor V Leiden contributes little, if at all, to the development of portal vein thrombosis in southern India.
据报道,2% - 30%的门静脉血栓形成患者存在莱顿Ⅴ因子。这种广泛的差异使得难以评估莱顿Ⅴ因子作为易感因素的重要性。
采用限制性片段长度多态性方法对112例门静脉血栓形成患者、104例深静脉血栓形成患者和98例对照者进行莱顿Ⅴ因子检测。
112例门静脉血栓形成患者中仅有3例(3%)存在莱顿Ⅴ因子,而98例对照者中有1例(1%),104例深静脉血栓形成患者中有16例(15%);其中,分别有3例、1例和15例为此突变的杂合子。
在印度南部,莱顿Ⅴ因子对门静脉血栓形成的发展几乎没有影响。