نتایج جستجو برای: bkv subtypesubgroup

تعداد نتایج: 379  

2011
R. Le Calloch J. C. Ianotto C. Berthou A. Tempescul

Hodgkin's lymphoma is a disease with a high rate of curability under classic chemo-radiotherapy regimes. Complications due to chemotherapy could include viral reactivation due to chronic lymphopenia. BK virus (BKV) is a polyoma virus belonging to the Papovaviridae family with antibody seroprevalences in healthy populations varying from 60% to 80%. Initial infections are asymptomatic usually occ...

Journal: :Clinical and vaccine immunology : CVI 2007
David Leuenberger Per Arne Andresen Rainer Gosert Simone Binggeli Erik H Ström Sohrab Bodaghi Christine Hanssen Rinaldo Hans H Hirsch

Impaired BK virus (BKV)-specific immunity is a key risk factor of polyomavirus-associated nephropathy. We hypothesized that BKV agnoprotein might constitute an important immune target, as it is highly expressed after infection in vitro. We demonstrate abundant expression of BKV agnoprotein in vivo by immunostaining of kidney transplant (KT) biopsy specimens. Antibody responses to the recombinan...

Journal: :Carcinogenesis 2003
Alfredo Corallini Laura Possati Cecilia Trabanelli Enrico Giraudo Romina Rocchetti Simona Talevi Antonella Caputo Federico Bussolino Giuseppe Barbanti-Brodano

Several sexually transmitted viruses have been associated with the development of Kaposi's sarcoma (KS), a highly vascularized multi-focal neoplasm, characterized by the presence of spindle-shaped and endothelial cells, fibroblasts and macrophages. As BK virus (BKV) sequences were found in 100% of primary KS and 75% of KS cell lines, we established an experimental model to test whether BKV may ...

Journal: :The Journal of hygiene 1986
T Flaegstad T Traavik B E Kristiansen

Enzyme immunoassays (ELISA) have been developed for the detection of BK virus IgG- and IgM-antibodies. Specific IgG is detected by an antigen-coated solid phase test; IgM by an antibody capture method. These methods have been used to study the age-distribution of BK virus antibodies in Tromsø county in Northern Norway. The serum panels tested were: 60 sera from paediatric patients aged 0-1 year...

Journal: :Iranian journal of pathology 2016
Manizheh Jozpanahi Amitis Ramezani Shahrzad Ossareh Mohammad Banifazl Anahita Bavand Setareh Mamishi Arezoo Aghakhani

BACKGROUND Primary infection with BK virus (BKV) is occurred during childhood and usually asymptomatic, but after initial infection, BKV may persist lifelong in the kidney and genitourinary tract. Reactivation may occur in individuals with compromised immunity such as renal transplant recipients. Due to the role of BKV in BK virus-associated nephropathy (BKVAN) and potentially renal allograft r...

2013
Samin Alavi Mohammad Kaji Yazdi Mahmoud Parvin Farahnaz Zohrehbandian Roxana Azma

The BK virus (BKV) is a nonenveloped double-stranded DNA virus of the polyomavirus family that primarily affects immunocompromised people. BKV infects humans at an early age. Initial infections with BKV are mainly asymptomatic and usually remain latent in the brain, peripheral blood, kidneys, and urothelium. Following the primary infection, viruses persist indefinitely as 'latent' infections of...

Journal: :Anais da Academia Brasileira de Ciencias 2017
Elviani B Moura Silvia V Petzhold Augusto R Amaral Luciane M Deboni Paulo H C DE França

The BK virus (BKV) produces a subclinical kidney infection in immunocompetent individuals. However, viremia may occur in kidney transplant patients with ongoing immunosuppression. BKV-associated nephropathy (BKVN) has no specific treatment and is a leading cause of organ transplant loss. In this study, we evaluated the predisposition and the clinical impact of BKV replication in kidney transpla...

Journal: :Vnitrni lekarstvi 2008
E Novotná O Viklický

Viral infections have been a subject of great interest in patients after organ transplantations. Post-transplant immunosuppressive therapy is often associated with transfenction or reactivation of viruses. The human polyomavirus type I, also called BKvirus (BKV), causes polyomavirus-associated nephropathy (PVAN) in 1-10% of renal transplant recipients. Thanks to increased PVAN awareness and imp...

2014
Virginia Flores Belén Rodríguez-Sánchez Ignacio Marín-Jiménez Emilio Bouza Luis Menchén Patricia Muñoz

Patients with inflammatory bowel disease (IBD) have an immune-deficient baseline status further modulated by immunosuppressive therapy that may promote the reactivation of latent viruses such as BK virus (BKV). The aim of this prospective study was to determine the prevalence of BKV infection in IBD patients and its potential relationship with the immunosuppressive treatment. Paired urine and p...

Journal: :Annals of agricultural and environmental medicine : AAEM 2015
Dorota Polz Kamal Morshed Agnieszka Stec Łukasz Podsiadło Małgorzata Polz-Dacewicz

INTRODUCTION Head and neck cancers are the most common cancers worldwide. It is estimated that approximately 90% of all head and neck cancers are represented by squamous cell carcinoma (SCC). There are many risk factors causing this type of cancer, including environmental factors and lifestyle choices, such as tobacco smoking or abusing alcohol. Other important risk factor include infectious fa...

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