نتایج جستجو برای: jcv

تعداد نتایج: 492  

2016
Matteo Ciocca Marta Pirovano Monica Lodi Antonino Romeo Vincenza Fetoni

The JC virus ( JCV) is well known for causing progressive multifocal leukoencephalopathy (PML), a potentially fatal, demyelinating disease of the central nervous system (CNS). PML almost exclusively affects immunosuppressed patients, whereas it is rare in immunocompetent subjects. Recently, a new clinical entity, named JCV encephalopathy ( JCVE), has been observed. We present the case of a 62-y...

Journal: :Journal of virology 2006
Ilker K Sariyer Ilhan Akan Victoria Palermo Jennifer Gordon Kamel Khalili Mahmut Safak

Many eukaryotic and viral regulatory proteins are known to undergo posttranslational modifications including phosphorylation, which plays a critical role in many aspects of cell function. Previous studies from our and other laboratories indicated that the JC virus (JCV) late regulatory protein, agnoprotein, plays an important role in the JCV life cycle. Agnoprotein contains several potential ph...

Journal: :Journal of virology 1995
N N Chen K Khalili

Transcription of the human polyomavirus (JCV) genome is regulated by host cell proteins and the viral early protein, T antigen. A region called the lytic control element (LCE), located within the enhancer of JCV, is important for transcription of JCV early and late promoters. Earlier studies have led to the identification of two single-stranded DNA-binding proteins, YB-1 and Pur alpha, with the...

Journal: :Polish journal of microbiology 2014
Sutanuka Chattaraj Soumen Bhattacharjee

There is a resurgence of interest in the study of occurrence, genotype and pathogenic associations of human Polyomaviruses in recent years. In the present study, we have ascertained the presence of human Polyomavirus JC (JCV) in the urine and peripheral blood leukocytes of tribal populations, for the first time in the North-Eastern part of West Bengal State of India. We have also characterized ...

Journal: :Journal of biomechanics 2005
Woojin Park Bernard J Martin Subang Choe Don B Chaffin Matthew P Reed

Differences in motion patterns subserving the same movement goal can be identified qualitatively. These alternatives, which may characterize 'movement techniques' (e.g., the stoop and the squat lifting technique), may be associated with significantly different biomechanical constraints and physiological responses. Despite the widely shared understanding of the significance of alternative moveme...

2015
Maria Chiara G. Monaco Eugene O. Major

The human polyomavirus JC PyV lytic infection of oligodendrocytes in the human brain results in the demyelinating disease progressive multifocal leukoencephalopathy, PML. JCV is a common virus infection in the population that leads to PML in patients with underlying diseases and therapies that cause immune deficiencies or modulate immune system functions. Patients may have high levels of antibo...

Journal: :The American journal of tropical medicine and hygiene 2007
Philip M Armstrong Theodore G Andreadis

Jamestown Canyon virus (JCV) (family Bunyaviridae, genus Orthobunyavirus) is maintained in a mosquito-deer cycle and has been implicated in the etiology of meningitis and encephalitis with human cases reported from Ontario, Canada, Michigan, Connecticut, and New York. Despite the recognition of symptomatic cases in the northeastern United States, little is known about the genetic relationships ...

2016
Keith A. Wharton Catherine Quigley Marian Themeles Robert W. Dunstan Kathryn Doyle Ellen Cahir-McFarland Jing Wei Alex Buko Carl E. Reid Chao Sun Paul Carmillo Gargi Sur John P. Carulli Keith G. Mansfield Susan V. Westmoreland Susan M. Staugaitis Robert J. Fox Werner Meier Susan E. Goelz

Over half of adults are seropositive for JC polyomavirus (JCV), but rare individuals develop progressive multifocal leukoencephalopathy (PML), a demyelinating JCV infection of the central nervous system. Previously, PML was primarily seen in immunosuppressed patients with AIDS or certain cancers, but it has recently emerged as a drug safety issue through its association with diverse immunomodul...

Journal: :Journal of virology 2001
M Safak R Barrucco A Darbinyan Y Okada K Nagashima K Khalili

In addition to encoding the structural and regulatory proteins, many viruses encode auxiliary proteins, some of which have been shown to play important roles in lytic and latent states of the viruses. The human neurotropic JC virus (JCV) genome encodes an auxiliary protein called Agno whose function remains unknown. Here, we investigated the functional role of JCV Agno protein on transcription ...

Journal: :The Brazilian journal of infectious diseases : an official publication of the Brazilian Society of Infectious Diseases 2016
Izaura Maria Vieira Cayres-Vallinoto Antonio Carlos Rosário Vallinoto Giselle Priscila Dos Anjos Pena Vânia Nakauth Azevedo Luiz Fernando Almeida Machado Marluísa de Oliveira Guimarães Ishak Ricardo Ishak

JC virus (JCV) is a member of the Polyomaviridae family and is associated to a severe disease known as progressive multifocal leukoencephalopathy, PML, which is gradually increasing in incidence as an opportunistic infection among AIDS patients. The present study aimed to investigate the occurrence of JCV among HIV-1 carriers including their types and molecular subtypes and the possible associa...

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