Ricerca avanzata

Home > Riviste > Panminerva Medica > Fascicoli precedenti > Panminerva Medica 2004 Settembre;46(3) > Panminerva Medica 2004 Settembre;46(3):153-9

FASCICOLI E ARTICOLI   I PIÙ LETTI   eTOC

ULTIMO FASCICOLOPANMINERVA MEDICA

Rivista di Medicina Interna

Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,6

Periodicità: Trimestrale

ISSN 0031-0808

Online ISSN 1827-1898

 

Panminerva Medica 2004 Settembre;46(3):153-9

 ORIGINAL ARTICLES

Co-detection and discrimination of JCV and BKV DNA by duplex nested-PCR in renal transplant recipients

Merlino C. 1, Bergallo M. 1, Daniele R. 1, Scutera S. 1, Giacchino F. 2, Comune L. 2, Negro Ponzi A. 1, Cavallo R. 1

1 Virology Unit Department of Public Health and Microbiology University of Turin,Turin, Italy
2 Nephrology and Dialysis Unit, Civil Hospital Ivrea (Turin), Italy

Aim. Several studies have disclosed a correlation between human polyomavirus BK (BKV) and interstitial nephritis in renal transplant recipients. It has recently been hypothesized that some cases of nephropathy may be associated with human polyomavirus JC (JCV).
Methods. In this paper we describe the development of duplex nested-PCR assay which allows the simultaneous detection and discrimination of genomic sequences of JCV and BKV “large T antigen”, resulting in amplicons of 150 bp and 278 bp, respectively. Thus, the presence of JCV and BKV DNA in urine and serum samples from 51 renal transplant recipients and 29 healthy controls was investigated and related to immunosuppressive regimens and renal function.
Results. The comparison between the incidence of the of BKV and/or JCV infections (detected by viruria and/or viraemia) in renal transplant recipients and the control group revealed a highly significant increase of the incidence of BKV infection in immunosuppressed patients vs healthy subjects (62.7% vs 27.6%; p=0.005). In particular, we found a significant increase of BKV-DNA viruria in renal transplant recipients vs healthy subjects (49% vs 17.2%; p=0.01), in agreement with the BKV urinary shedding in renal transplant recipients of the literature (5-45%).
Conclusion. The nested-PCR technique is a valid diagnostic tool to detect viral presence in urine and its sistemic diffusion. Our assay links the high sensitivity of nested amplification with the simultaneous detection and discrimination of genomic sequences of JC and BK polyomaviruses and thus provides a handy, rapid and sensitive means for DNA analysis of large numbers of samples.

lingua: Inglese


FULL TEXT  ESTRATTI

inizio pagina