BK virus-associated nephropathy (BKVAN) is one of the major causes of allograft dysfunction in kidney transplant (KT) patients. We compared BKVAN combined with acute rejection (BKVAN/AR) with BKVAN alone in KT patients. We retrospectively analyzed biopsy-proven BKVAN in KT patients from 2000 to 2011 at Seoul National University Hospital. Among 414 biopsies from 951 patients, biopsy-proven BKVAN...

BACKGROUND/AIMS BK virus-associated nephropathy (BKVAN) is an important cause of allograft dysfunction in kidney transplant recipients. It has an unfavorable clinical course, and no definite treatment guidelines have yet been established. Here, we report our center's experience with biopsy-proven BKVAN and investigate factors associated with its progression. METHODS From January 2004 to April...

BACKGROUND AND OBJECTIVES ABO-incompatible kidney transplant recipients may have a higher incidence of BK virus allograft nephropathy (BKVAN) compared with ABO-compatible recipients. It is unclear whether HLA-incompatible recipients share this risk or whether this phenomenon is unique to ABO-incompatible recipients. DESIGN, SETTING, PARTICIPATION, MEASUREMENTS: This study analyzed adult inc...

INTRODUCTION BK virus associated allograft nephropathy (BKVAN) is an important cause of allograft lost that often occurs in the first year of transplantation. The state of over immunosuppression also predispose these patients to various opportunistic viral infection Objectives: This research aimed to study the renal transplanted patients for BK viremia and BKVAN. PATIENTS AND METHODS This obs...

Polyomavirus type BK-associated nephropathy (BKVAN) develops from reactivation of latent infection in urothelium and kidney tubular epithelium. While BK viremia may occur a variety immunosuppressed states, BKVAN exclusively allografts. We report case middle-aged man with remote history allogeneic hematopoietic stem cell transplant (HSCT) who had chronic disease (CKD) secondary to BKVAN.

The differentiation of BK virus-associated renal allograft nephropathy (BKVAN) from acute allograft rejection (AR) in renal transplant recipients is an important clinical problem because the treatment can be diametrically opposite for the two conditions. The aim of this discovery-phase biomarker development study was to examine feasibility of developing a noninvasive method to differentiate BKV...

BACKGROUND Polyomavirus BK is a major cause of nephropathy in immunosuppressed transplanted patients. Non-invasive diagnostic protocols such as molecular detection of polyomavirus BK replication are a useful strategy to predict BK virus-associated nephropathy (BKVAN). OBJECTIVE To determine the prevalence of polyomavirus BK infection among kidney transplant patients suspected to have BKVAN. ...

BKV associated nephropathy (BKVAN) is a cause of renal dysfunction and loss of the graft in transplants. Viral primary infection is usually inapparent and then BKV establishes latency in kidneys. Reactivation occurs in immunocompromised conditions in renal transplant recipients who can develop a subclinical nephritis and eventually a BKV-associated interstitial nephritis or a BKVAN. In this stu...

BK virus-allograft nephropathy (BKVAN) is an increasingly recognized complication after kidney transplantation. Quantitative tests have been advocated to monitor patients, but data demonstrating their efficacy are relatively limited. We developed a real-time PCR assay to quantitate BK virus loads in the setting of renal transplantation, and we correlated the BK virus load with clinical course a...

Changes in the BK virus archetypal noncoding control region (NCCR) have been associated with BK-virus-associated nephropathy (BKVAN). Whether sustained viremia, a surrogate for BKVAN, is associated with significant changes in the BK-NCCR is unknown. We performed PCR amplification and sequencing of (1) stored urine and (2) plasma samples from the time of peak viremia from 11 patients with sustai...