TY - JOUR T1 - Comparison of the sensitivity between real-time PCR and ARMS PCR on detection of vWF gene Q793X mutation in Von Wileberand Disease type 3 patients TT - مقایسه حساسیت دو روش Real-time PCR و ARMS PCR در تشخیص جهش شایع Q793X ژن vWF در مبتلایان به بیماری فون ویلبراند نوع 3 JF - Blood-Journal JO - Blood-Journal VL - 9 IS - 2 UR - http://bloodjournal.ir/article-1-646-en.html Y1 - 2012 SP - 104 EP - 113 KW - Key words: von Willebrand Diseases KW - Real-Time PCR KW - Mutation N2 -   Abstrac t  Background and Objectives Von Willebrand Disease (vWD) type 3 is an inherited disease characterized by severe clinical manifestations due to haemostatic abnormalities. Because of the autosomal recessive pattern of its inheritance, the disease is more frequent in regions with the high rate of consanguine marriages. We have previously demonstrated that despite various mutations of the gene, the Q793X mutation in exon 18 is more frequent in Iranian vWD patients. We have developed two assays to further investigate this mutation among Iranian patients.   Materials and Methods The Q793X mutation status was studied in 15 vWD type 3 patients and 30 normal individuals by ARMS-PCR and real-time PCR assays. Melting curve analysis was performed after each real-time PCR experiment. To confirm the results of assays, all amplified gene fragments were sequenced.   Results Three out of 15 patients were previously diagnosed as having Q793X mutation in homozygote status. This was further confirmed by the ARMS-PCR and real-time PCR assays. Interestingly, the mutation was also found in 2 other unrelated patients with unknown mutations. Heterozygote status for the mutation was not detected in normal controls.   Conclusions Q793X mutation in vWF gene is common in Iranian population. However, a particular demographic distribution of the mutation was not observed in this study. Both assays successfully detected the mutation, although each assay has its own advantages and drawbacks. It is up to each laboratory to choose either assay based on their facilities and expertise.   M3 ER -