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KMID : 0984720080400030035
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Infection and Chemotherapy
2008 Volume.40 No. 3 p.35 ~ p.37
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Comparison of Real-time PCR Methods and pp65 Antigenemia Assay to Detect Cytomegalovirus Reactivation in Hematopoietic Stem Cell Transplantation
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Lee Seon-Young
Choi Byeong-Sun
Kim Sung-Soon
Choi Su-Mi
Shin Wan-Shik
Lee Joo-Shil
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Abstract
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Human cytomegalovirus (HCMV) is a common human pathogen that causes morbidity and mortality in hematopoietic stem cell transplantation (HSCT) recipients. Early diagnosis of HCMV infection or reactivation, and setting threshold values for effective pre-emptive therapies, are required for appropriate HCMV disease prevention in HSCT recipients. We compared the HCMV infections detected by the two methods, LightCycler-based PCR (LC PCR) and in-house immediate early protein PCR (in-house IE PCR) with the results of a pp65 antigenemia assay as the reference. The sensitivity and specificity for the in-house IE PCR were 79.3% and 72.7%, respectively, and 82.9% and 40.7%, respectively, for the LC PCR. The correlation between the HCMV viral load and pp65 antigenemia in HSCT recipients was r=0.603 with in-house IE PCR and r=0.525 with LC PCR. The discordant results between methods and relatively low (r) values suggest that we need more study to set threshold values according to the using methods with clinical outcome.
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KEYWORD
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HCMV, Real-time PCR, pp65 antigenemia, LC PCR, In-house IE PCR
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