Detection of polyomavirus JC genotype from transplant patients by capillary electrophoresis: comparison to fragment length polymorphism analysis

Journal of the Formosan Medical Association = Taiwan Yi Zhi
Ning-Sheng LaiWen-Yao Yin

Abstract

Among the genotypes of human polyomavirus JC (JCV) reported in Taiwan, CY, TW1, TW2 and TW3 are the most commonly correlated with human diseases. JCV is usually detected using nucleotide sequencing and restriction fragment length polymorphism (RFLP) analysis. The aim of this study was to detect the rate of positivity and genotype of the JCV genome in urine by RFLP or capillary electrophoresis (CE) in renal transplant patients and healthy volunteers. We compared CE analysis to the methods of nucleotide sequencing and RFLP analysis for detection of JCV viruria among 60 renal transplant patients and 50 unrelated healthy controls. Genotyping of the positive PCR products was performed using CE and RFLP analysis simultaneously. The urine JCV-positive rate was significantly higher in renal transplant patients than in healthy volunteers (40% [24/60] vs. 20% [10/50]; p=0.0238). In addition, multiple genotypes of JCV could be detected by CE, but only one genotype could be detected by RFLP. In our study, 20% (2/10) of urine JCV-positive samples from healthy volunteers had two different genotypes. In renal transplant patients 66% (16/24) of JCV-positive samples had two different genotypes and 12% (3/24) had three different genotypes. In co...Continue Reading

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Citations

Jul 20, 2010·American Journal of Surgery·Wen-Yao YinNing-Sheng Lai

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