نتایج جستجو برای: bk virus bkv
تعداد نتایج: 402180 فیلتر نتایج به سال:
Failure to mount or maintain a protective immune response may influence the development of polyomavirus BK (BKV)-associated nephropathy (PVAN). However, limited data are so far available on BKV-specific immunity after kidney transplantation. BKV-specific cellular immune response was retrospectively analyzed in kidney recipients with or without BKV infection/reactivation by measuring the frequen...
Renal infiltration with leukaemic cells is a common finding in patients suffering with chronic lymphocytic leukaemia (CLL) but rarely does it lead to significant renal dysfunction. Similarly, BK nephropathy is a recognized cause of graft failure in renal transplant recipients but rarely causes significant disease in native kidneys. In the few reports where leukaemic infiltration of the kidney h...
Possible human infection with simian virus 40 (SV40) has been of great concern ever since SV40 was discovered in polio vaccines. Human populations are SV40-seropositive, but because of serological cross-reactivity between SV40 and the human polyomaviruses BK virus (BKV) and JC virus (JCV), it is debatable whether these antibodies are specific. An SV40-specific serological assay was established,...
Simian virus 40 (SV40) genome sequences have been detected in human non-Hodgkin lymphoma (NHL) tissues, and past infection with SV40 may be a risk factor for NHL. We conducted a population-based nested case-control study to investigate the association between serum antibodies to SV40 and incident NHL. Two research serum banks were established in Washington County, MD, with >45,000 volunteers co...
BK viruses (BKV) comprise four subtypes that are distinguishable by serological and molecular methods with the latter indicating up to four subgroups within subtype I. In this study, the phylogeny of all BKV subtypes was analyzed. Phylogenetic analyses of the viral structural protein VP1, concatenated sequences including the T-Ag, t-Ag, VP1 and VP2 genes and the entire coding region of BKV, eac...
Humans are infected with viruses that establish long-term persistent infections. To address whether immunocompetent individuals control virus reactivation globally or independently and to identify patterns of sporadic reactivation, we monitored herpesviruses and polyomaviruses in 30 adults, over 14 months. Epstein-Barr virus (EBV) DNA was quantitated in saliva and peripheral blood mononuclear c...
Monitoring of active polyomavirus BK (BKV) infections by quantitative real-time PCR is becoming a progressively more routine practice in the care of renal transplant patients due to the potential for these infections to injure transplanted kidneys. Quantitative BKV results from a previously validated, laboratory-developed real-time PCR assay based on commercially available MGB Alert reagents we...
Polyomavirus BK (BKV) is ubiquitously present amongst the general population establishing a latent, seemingly asymptomatic infection in immunocompetent individuals. In transplant recipients, however, BKV reactivation is common and can lead to distinctive pathological entities in different patient groups: in renal transplant (RT) recipients, it is associated with nephropathy (BKVN) and ureteral ...
BACKGROUND BK virus-associated hemorrhagic cystitis (BKV-HC) is a severe complication after allogeneic hematopoietic stem cell transplantation (HSCT), but antiviral treatment for this condition has not been evaluated. METHODS We conducted a retrospective survey on the safety and outcome of cidofovir treatment for patients with BKV-HC in centers affiliated with the European Group for Blood and...
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