Results 1 to 10 of about 1,736 (146)

Prolonged KI Polyomavirus Infection in Immunodeficient Child [PDF]

Emerging Infectious Diseases, 2012
To the Editor: Two novel polyomaviruses (PyVs), KIPyV and WUPyV, were identified in respiratory and fecal specimens from children with signs and symptoms of respiratory tract infection (1,2). A review of literature on emerging viruses in transplant recipients indicated that up to 80% of patients harboring these PyVs are co-infected with another ...
Valeria Falcone, Marcus Panning, Brigitte Strahm, Thomas Vraetz, Sibylle Bierbaum, Dieter Neumann-Haefelin, Daniela Huzly   +6 more
doaj   +4 more sources

Small T Oncoprotein of Merkel Cell Polyomavirus Attenuates Cisplatin-Induced Apoptosis and Enhances E1, E6/E7, MMP-1, and Ki-67 Expression in HeLa Cervical Cancer Cells [PDF]

Advanced Pharmaceutical Bulletin
Purpose: Cervical cancer (CxCa) is primarily caused by high-risk human papillomaviruses (hrHPV), which disrupt p53 and pRb regulation, leading to uncontrolled growth and progression.
Fatemeh Pakdel, Seyed Masoud Hosseini, Neda Soleimani, Ali Farhadi   +3 more
doaj   +4 more sources

KI and WU Polyomavirus in Respiratory Samples of SARS-CoV-2 Infected Patients [PDF]

Microorganisms, 2021
Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has been declared a global pandemic. Our goal was to determine whether co-infections with respiratory polyomaviruses, such as Karolinska Institutet polyomavirus (KIPyV) and Washington ...
Carla Prezioso, Ugo Moens, Giuseppe Oliveto, Gabriele Brazzini, Francesca Piacentini, Federica Frasca, Agnese Viscido, Mirko Scordio, Giuliana Guerrizio, Donatella Maria Rodio, Alessandra Pierangeli, Gabriella d’Ettorre, Ombretta Turriziani, Guido Antonelli, Carolina Scagnolari, Valeria Pietropaolo   +15 more
doaj   +5 more sources

KI and WU Polyomavirus detection in tonsils of immunocompetent patients

Microbiologia Medica, 2010
The Polyomaviruses KI and WU have been identified in 2007 in nasopharyngeal aspirates of patients with acute respiratory tract infections.They have been further isolated in faecal samples, lymphoid tissue, bronchoalveolar lavages and blood, although ...
Massimiliano Bergallo, Sara Astegiano, Maria Elena Terlizzi, Giovanni Cavallo, Mariateresa Elia, Muhammed Babakir-Mina, Marco Ciotti, Carlo Federico Perno, Rossana Cavallo, Cristina Costa   +9 more
doaj   +3 more sources

MCPyV small T antigen enhances HPV16 oncogene expression, promotes Ca Ski cell proliferation, and reduces 5-fluorouracil-induced apoptosis in cervical cancer cells [PDF]

Infectious Medicine
Background: Cervical cancer is primarily associated with persistent infection by high-risk human papillomaviruses (HR-HPVs), whose oncoproteins modulate key cellular pathways involved in proliferation and apoptosis.
Tahereh Pakdel, Mohammad Kargar, Ali Farhadi, Mahdokht Hossein Aghdaei, Leila Kohan   +4 more
doaj   +2 more sources

Whole Genome Sequencing of KI Polyomavirus Strain from Patient with Breast Cancer in Basrah City [PDF]

Journal of Bioscience and Applied Research
Background: Polyomaviruses are small, circular, non-enveloped viruses with a diameter of about 40–50 nm, and have a double-stranded DNA molecule descended from the Polyomaviridae. 32 PyV strains are described, more than 10 of which are reported to infect
akeel Alabadi, Hayder Al-Hmudi, Hassan Habib   +2 more
doaj   +2 more sources

Polyomavirus-associated Trichodysplasia spinulosa involves hyperproliferation, pRB phosphorylation and upregulation of p16 and p21. [PDF]

PLoS ONE, 2014
Trichodysplasia spinulosa (TS) is a proliferative skin disease observed in severely immunocompromized patients. It is characterized by papule and trichohyalin-rich spicule formation, epidermal acanthosis and distention of dysmorphic hair follicles ...
Siamaque Kazem, Els van der Meijden, Richard C Wang, Arlene S Rosenberg, Elena Pope, Taylor Benoit, Philip Fleckman, Mariet C W Feltkamp   +7 more
doaj   +1 more source

Acquisition of Human Polyomaviruses in the First 18 Months of Life

Emerging Infectious Diseases, 2015
We investigated the presence of 4 human polyomaviruses (PyVs) (WU, KI, Merkel cell, and Malawi) in respiratory specimens from a community-based birth cohort. These viruses typically were acquired when children were ≈1 year of age.
Rebecca Rockett, Seweryn Bialasiewicz, Lebogang Mhango, Jane Gaydon, Rebecca Holding, David Whiley, Stephen B. Lambert, Robert S. Ware, Michael D. Nissen, Keith Grimwood, Theo P. Sloots   +10 more
doaj   +1 more source

Clinical epidemiology of bocavirus, rhinovirus, two polyomaviruses and four coronaviruses in HIV-infected and HIV-uninfected South African children. [PDF]

PLoS ONE, 2014
BackgroundAdvances in molecular diagnostics have implicated newly-discovered respiratory viruses in the pathogenesis of pneumonia. We aimed to determine the prevalence and clinical characteristics of human bocavirus (hBoV), human rhinovirus (hRV ...
Marta C Nunes, Zachary Kuschner, Zelda Rabede, Richard Madimabe, Nadia Van Niekerk, Jackie Moloi, Locadiah Kuwanda, John W Rossen, Keith P Klugman, Peter V Adrian, Shabir A Madhi   +10 more
doaj   +1 more source

KI and WU Polyomaviruses: Seroprevalence Study and DNA Prevalence in SARS-CoV-2 RNA Positive and Negative Respiratory Samples

Microorganisms, 2022
The aim of this work was to study the possible co-infection of KI and WU polyomavirus (KIPyV and WUPyV, respectively) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in respiratory samples and to detect the seroprevalence of KIPyV and ...
Melinda Katona, Krisztina Jeles, Renátó Kovács, Eszter Csoma   +3 more
doaj   +1 more source