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Year : 2012  |  Volume : 22  |  Issue : 5  |  Page : 347-352

Determination of human cytomegalovirus pp65 antigenemia among renal transplant patients

L and T Microbiology Research Center, Kamal Nayan Bajaj Research Centre, Vision Research Foundation, Sankara Nethralaya 41, College Road, Chennai, India

Correspondence Address:
H N Madhavan
L and T Microbiology Research Center,Vision Research Foundation, Sankara Nethralaya 18, College Road, Chennai - 600 006
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0971-4065.103909

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Human cytomegalovirus (HCMV) is an important cause of morbidity and mortality in immunosuppressed transplant recipients. Isolation of HCMV from peripheral blood leukocytes (PBLs) is considered a reliable marker of disseminated HCMV infection. HCMV pp65 antigenemia is widely used for monitoring CMV infection and guiding preemptive therapy. The aim of this study was to compare pp65 antigenemia with culture technique for detection of HCMV in PBLs among kidney transplant patients and also to determine the threshold value of significant pp65 antigenemiat. Fifty-one peripheral blood samples from post-renal transplant patients collected during August 2009 to March 2011 were processed for pp65 antigenemia assay. These were also tested for isolation of the virus by inoculation into human corneal fibroblast cells. The results of pp65 antigenemia and culture were compared to determine the clinical significance of pp65 antigenemia. HCMV was isolated in 21 cases. On comparing the pp65 antigenemia results with that of the viral isolation, a mean of 23 cells was determined to yield a positive isolation of HCMV. The values of pp65 antigenemia and isolation results were correlated (paired t-test, P = 0.0029). A pp65 count of 23 and above was considered significant in our clinical settings since we found that these clinical specimens yield positive culture result.


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Indian Journal of Nephrology
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Online since 20th Sept '07