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https://www.readbyqxmd.com/read/28723708/subclinical-herpesvirus-shedding-among-hiv-1-infected-men-on-antiretroviral-therapy
#1
Arcadio Agudelo-Hernandez, Yue Chen, Arlene Bullotta, William G Buchanan, Cynthia R Klamar-Blain, Luann Borowski, Sharon A Riddler, Charles R Rinaldo, Bernard Jc Macatangay
DESIGN: We evaluated the subclinical shedding of 6 different herpesviruses in antiretroviral drug-treated HIV(+) men who have sex with men (MSM), and determined how this is associated with markers of inflammation and immune activation. METHODS: We obtained blood, semen, throat washing, urine, and stool from 15 antiretroviral-treated HIV-1-infected MSM with CD4 T cell reconstitution, and 12 age-matched HIV(-) MSM from the Multicenter AIDS Cohort Study at 4 timepoints over 24 weeks to measure DNA levels of cytomegalovirus (CMV), Epstein-Barr virus (EBV), herpes simplex virus 1 and 2, human herpesvirus 6 (HHV6), and HHV8...
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28723664/detecting-the-genetic-link-between-alzheimer-s-disease-and-obesity-using-bioinformatics-analysis-of-gwas-data
#2
Qi-Shuai Zhuang, Hao Zheng, Xiao-Dan Gu, Liang Shen, Hong-Fang Ji
Alzheimer's disease (AD) represents the major form of dementia in the elderly. In recent years, accumulating evidence indicate that obesity may act as a risk factor for AD, while the genetic link between the two conditions remains unclear. This bioinformatics analysis aimed to detect the genetic link between AD and obesity on single nucleotide polymorphisms (SNPs), gene, and pathway levels based on genome-wide association studies data. A total of 31 SNPs were found to be shared by AD and obesity, which were linked to 7 genes...
July 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28722111/monoamine-oxidase-a-is-highly-expressed-in-classical-hodgkin-lymphoma
#3
Pei Chuan Li, Imran N Siddiqi, Anja Mottok, Eric Y Loo, Chieh Hsi Wu, Wendy Cozen, Christian Steidl, Jean Chen Shih
Monoamine oxidase A (MAOA) is a mitochondrial enzyme that catalyzes oxidative deamination of neurotransmitters and dietary amines and produces H2 O2. It facilitates the progression of gliomas and prostate cancer, but its expression and functional relevance have not been studied in lymphoma. Here, we evaluated MAOA in 427 cases of Hodgkin and non-Hodgkin lymphoma and in a spectrum of reactive lymphoid tissues by immunohistochemistry on formalin-fixed paraffin-embedded specimens. MAOA was expressed by Hodgkin Reed-Sternberg (HRS) cells in the majority of classical Hodgkin lymphomas (cHL) (181/241; 75%), with 34...
July 19, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/28721913/clinical-utility-of-epstein-barr-virus-dna-testing-in-the-treatment-of-nasopharyngeal-carcinoma-patients
#4
REVIEW
Kelly Y Kim, Quynh-Thu Le, Sue S Yom, Raymond H W Ng, K C Allen Chan, Scott V Bratman, John J Welch, Rao L Divi, Raymond A Petryshyn, Barbara A Conley
Epstein-Barr virus (EBV) DNA analysis has been shown to be useful for early detection, prognostication, and monitoring of treatment response of nasopharyngeal carcinoma (NPC), and the recent literature provides growing evidence of the clinical utility of EBV DNA testing, particularly to inform treatment decisions for NPC patients. Despite the fact that NPC is a rare disease, the NRG Oncology cooperative group has successfully activated a phase 2/3 randomized clinical trial for NPC with international partners and in that process has discovered that the development of a harmonized EBV DNA test is absolutely critical for integration into clinical trials and for future deployment in clinical and central laboratories...
August 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28716111/quantitation-of-dna-methylation-in-epstein-barr-virus-associated-nasopharyngeal-carcinoma-by-bisulfite-amplicon-sequencing
#5
Weilin Zhao, Yingxi Mo, Shumin Wang, Kaoru Midorikawa, Ning Ma, Yusuke Hiraku, Shinji Oikawa, Guangwu Huang, Zhe Zhang, Mariko Murata, Kazuhiko Takeuchi
BACKGROUND: Epigenetic changes, including DNA methylation, disrupt normal cell function, thus contributing to multiple steps of carcinogenesis. Nasopharyngeal carcinoma (NPC) is endemic in southern China and is highly associated with Epstein-Barr virus (EBV) infection. Significant changes of the host cell methylome are observed in EBV-associated NPC with cancer development. Epigenetic marks for NPC diagnosis are urgently needed. In order to explore DNA methylation marks, we investigated DNA methylation of candidate genes in EBV-associated nasopharyngeal carcinoma...
July 17, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28715492/small-molecule-perturbation-of-the-cand1-cullin1-ubiquitin-cycle-stabilizes-p53-and-triggers-epstein-barr-virus-reactivation
#6
Nadezhda Tikhmyanova, Steve Tutton, Kayla A Martin, Fang Lu, Andrew V Kossenkov, Nicholas Paparoidamis, Shannon Kenney, Joseph M Salvino, Paul M Lieberman
The chemical probe C60 efficiently triggers Epstein-Barr Virus (EBV) reactivation from latency through an unknown mechanism. Here, we identify the Cullin exchange factor CAND1 as a biochemical target of C60. We also identified CAND1 in an shRNA library screen for EBV lytic reactivation. Gene expression profiling revealed that C60 activates the p53 pathway and protein analysis revealed a strong stabilization and S15 phosphorylation of p53. C60 reduced Cullin1 association with CAND1 and led to a global accumulation of ubiquitylated substrates...
July 17, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28713922/selection-of-an-optimal-promoter-for-gene-transfer-in-normal-b-cells
#7
Magdalena Winiarska, Dominika Nowis, Malgorzata Firczuk, Agnieszka Zagozdzon, Magdalena Gabrysiak, Radoslaw Sadowski, Joanna Barankiewicz, Michal Dwojak, Jakub Golab
Gene transfer into normal quiescent human B cells is a challenging procedure. The present study aimed to investigate whether it is possible to increase the levels of transgene expression by using various types of promoters to drive the expression of selected genes‑of‑interest. To produce lentiviral particles, the present study used the 2nd generation psPAX2 packaging vector and the vesicular stomatitis virus ‑expressing envelope vector pMD2.G. Subsequently, lentiviral vectors were generated containing various promoters, including cytomegalovirus (CMV), elongation factor‑1 alpha (EF1α) and spleen focus‑forming virus (SFFV)...
July 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28712702/clinical-usefulness-of-f-18-fdg-pet-in-lymphoepithelioma-like-gastric-carcinoma
#8
Soyeon Park, Dakeun Lee, Kee Myung Lee, Sang-Uk Han, Jei Hee Lee, Su Jin Lee, Young-Sil An, Joon-Kee Yoon
PURPOSE: Lymphoepithelioma-like carcinoma (LELC) is a rare type of gastric cancer. We evaluated the clinical usefulness of F-18 FDG positron emission tomography/computed tomography (PET/CT) in LELC of stomach. MATERIALS AND METHODS: A total of 28 patients (mean age=59years) who underwent preoperative F-18 FDG PET/CT were enrolled retrospectively. Nine patients underwent follow-up F-18 FDG PET/CT. Pathologic information was obtained through gastrectomy and the association with Epstein-Barr virus (EBV) was investigated in 26 patients...
June 27, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28712115/expression-of-interferon-regulatory-factor-7-correlates-with-the-expression-of-epstein-barr-virus-latent-membrane-protein-1-and-cervical-lymph-node-metastasis-in-nasopharyngeal-cancer
#9
Satoru Kondo, Kazuhira Endo, Naohiro Wakisaka, Mitsuharu Aga, Makoto Kano, Noriko Seishima, Tomoko Imoto, Eiji Kobayashi, Makiko Moriyama-Kita, Yosuke Nakanishi, Shigeyuki Murono, Joseph S Pagano, Tomokazu Yoshizaki
Interferon regulatory factor 7 (IRF7) has oncogenic properties in several malignancies such as Epstein-Barr virus (EBV)-associated lymphoma. However, there is no evidence whether IRF7 is associated with the oncogenesis of nasopharyngeal cancer (NPC), the pathogenesis of which is closely associated with EBV. Herein, we report that expression of IRF7 was increased in normal nasopharyngeal cells that expressed the EBV principal oncoprotein, latent membrane protein 1 (LMP1). In addition, IRF7 was mainly expressed in the nucleus in both normal nasopharyngeal cells and nasopharyngeal cancer cells that expresses LMP1...
July 16, 2017: Pathology International
https://www.readbyqxmd.com/read/28710778/a-detection-method-for-the-rash-and-fever-illness-associated-viruses-using-multiplex-rt-pcr
#10
Yuki Matsushima, Tomomi Shimizu, Ikuko Doi, Fuminori Mizukoshi, Koo Nagasawa, Akihide Ryo, Hideaki Shimizu, Masae Kobayashi, Keiji Funatogawa, Noriko Nagata, Mariko Ishikawa, Ayako Komane, Nobuhiko Okabe, Yoshio Mori, Makoto Takeda, Hirokazu Kimura
To detect various viral genes in the patients with rash and fever illness (RFI), a new multiplex (reverse transcription) polymerase chain reaction [(RT)-PCR] method was constructed. New primer sets were designed for the detection of herpes simplex viruses 1 and 2 (HSV1 and 2), and Epstein-Barr virus (EBV). The newly designed and previously reported primer sets were used to detect 13 types of RFI-associated viruses by multiplex (RT)-PCR assay systems. Moreover, to eliminate non-specific PCR products, a double-stranded specific DNase was used for the digestion of double-stranded DNA derived from the templates in clinical specimens...
July 15, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28707462/pretreatment-serum-amyloid-a-and-c-reactive-protein-comparing-with-epstein-barr-virus-dna-as-prognostic-indicators-in-patients-with-nasopharyngeal-carcinoma-a-prospective-study
#11
Qiu-Yan Chen, Qing-Nan Tang, Lin-Quan Tang, Wen-Hui Chen, Shan-Shan Guo, Li-Ting Liu, Chao-Feng Li, Yang Li, Yu-Jing Liang, Xue-Song Sun, Ling Guo, Hao-Yuan Mo, Rui Sun, Dong-Hua Luo, Yu-Ying Fan, Yan He, Ming-Yuan Chen, Ka-Jia Cao, Chao-Nan Qian, Xiang Guo, Hai-Qiang Mai
Purpose: The measuring Epstein-Barr virus (EBV) DNA is an important predictor of nasopharyngeal carcinoma (NPC). This study evaluated the predictive value of pretreatment Serum Amyloid A (SAA) and C-reactive Protein (CRP) comparing with EBV DNA in patients with NPC. Materials and Methods: In an observational study of 419 non-metastatic NPC patients, we prospectively evaluated the prognostic effects of pretreatment SAA, CRP and EBV DNA on survival. The primary endpoint was progress-free survival (PFS)...
July 14, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28707393/malaria-epstein-barr-virus-infection-and-the-pathogenesis-of-burkitt-s-lymphoma
#12
Anthony R Mawson, Suvankar Majumdar
A geographical and causal connection has long been recognized between malaria, Epstein-Barr virus (EBV) infection and Burkitt's lymphoma (BL), but the underlying mechanisms remain obscure. Potential clues are that the malaria parasite Plasmodium falciparum selectively absorbs vitamin A from the host and depends on it for its biological activities; secondly, alterations in vitamin A (retinoid) metabolism have been implicated in many forms of cancer, including BL. The first author has proposed that the merozoite-stage malaria parasite, emerging from the liver, uses its absorbed vitamin A as a cell membrane destabilizer to invade the red blood cells, causing anemia and other signs and symptoms of the disease as manifestations of an endogenous form of hypervitaminosis A (Mawson AR...
July 13, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28707331/epstein-barr-virus-lytic-cycle-involvement-in-diffuse-large-b-cell-lymphoma
#13
Melina Cohen, Aldana Georgina Vistarop, Fuad Huaman, Marina Narbaitz, Fernanda Metrebian, Elena De Matteo, María Victoria Preciado, Paola Andrea Chabay
Epstein-Barr virus (EBV)-mediated B cell transformation is achieved predominantly through the action of latent proteins, but recent evidence suggests that lytic EBV replication has also a certain pathogenic role in lymphomagenesis, at least in the early phases of cell transformation. Particularly, in diffuse large B cell lymphoma (DLBCL), the EBV lytic cycle is by and large unexplored, so to disclose lytic cell contribution to lymphomagenesis, our aim was to evaluate viral early and late lytic gene expression in relation to several immune response markers in a series of EBV+ DLBCL from Argentina...
July 14, 2017: Hematological Oncology
https://www.readbyqxmd.com/read/28706985/clinical-utility-of-epstein-barr-virus-viral-load-monitoring-and-risk-factors-for-posttransplant-lymphoproliferative-disorders-after-kidney-transplantation-a-single-center-10-year-observational-cohort-study
#14
Erica Franceschini, Jessica Plessi, Stefano Zona, Antonella Santoro, Margherita Digaetano, Francesco Fontana, Gaetano Alfano, Giovanni Guaraldi, Patrizia Comoli, Francesca Facchini, Leonardo Potenza, William Gennari, Mauro Codeluppi, Mario Luppi, Gianni Cappelli, Inge C Gyssens, Cristina Mussini
BACKGROUND: Posttransplant lymphoproliferative disease (PTLD) is an important cause of morbidity and mortality in solid organ transplants. Epstein Barr virus (EBV) plays a major role in PTLD development. Guidelines recommend EBV viral load (VL) monitoring in high-risk populations in the first year. METHODS: Retrospective observational study in all adult patients who had at least 1 EBV-VL performed in the postkidney transplant (KT) period from January 2005 to December 2014 at the Policlinico Modena Hospital...
July 2017: Transplantation Direct
https://www.readbyqxmd.com/read/28706783/the-anecdote-of-viral-etiopathogenia-in-ameloblastoma-and-odontogenic-keratocyst-why-don-t-we-let-it-go
#15
Bacem A E O Khalele
BACKGROUND: Ameloblastoma (AM) and odontogenic Keratocyst (OKC) are destructive odontogenic lesions of the gnathion. Although their exact pathogeneses are not yet totally understood, the viral etiopathogenesis in AM and KCOT has been proposed. True to syndromic keratocystic odontogenic tumor (sKCOT) and non-syndromic OKC is the high recurrence rate. OBJECTIVES: Given that shared pathways trailed by AM and by sKCOT/OKC have been suggested, this study, however, contrasts the expression of AM and OKC for viral antibodies...
May 2017: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/28706209/mountain-gorilla-lymphocryptovirus-has-epstein-barr-virus-like-epidemiology-and-pathology-in-infants
#16
Tierra Smiley Evans, Linda J Lowenstine, Kirsten V Gilardi, Peter A Barry, Benard J Ssebide, Jean Felix Kinani, Fred Nizeyimana, Jean Bosco Noheri, Michael R Cranfield, Antoine Mudakikwa, Tracey Goldstein, Jonna A K Mazet, Christine Kreuder Johnson
Epstein-Barr virus (EBV) infects greater than 90% of humans, is recognized as a significant comorbidity with HIV/AIDS, and is an etiologic agent for some human cancers. The critically endangered mountain gorilla population was suspected of infection with an EBV-like virus based on serology and infant histopathology similar to pulmonary reactive lymphoid hyperplasia (PRLH), a condition associated with EBV in HIV-infected children. To further examine the presence of EBV or an EBV-like virus in mountain gorillas, we conducted the first population-wide survey of oral samples for an EBV-like virus in a nonhuman great ape...
July 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705903/an-immunocompetent-patient-with-a-recurrence-free-ebv-positive-plasmacytoma-possesses-robust-epstein-barr-virus-specific-t-cell-responses
#17
Bithi Chatterjee, Laura Sahli, Obinna Chijioke, Philip Went, Christian Munz, Andreas Trojan
No abstract text is available yet for this article.
July 13, 2017: Haematologica
https://www.readbyqxmd.com/read/28705719/prevalence-of-ebv-hpv-and-mmtv-in-pakistani-breast-cancer-patients-a-possible-etiological-role-of-viruses-in-breast-cancer
#18
Wasifa Naushad, Orooj Surriya, Hajra Sadia
BACKGROUND: Breast cancer being a multifactorial disease, the role of infectious agent in development of disease is of great interest. The high incidence of breast cancer around the world has woken the interest in a viral etiology of breast cancer. Despite decades of research, no etiologic factor(s) for human breast cancer has been known and the quest for a contributing cause has all but been abandoned during the past years. Recent investigations have linked breast cancer to viral infections, such as Epstein-Barr virus (EBV), Human papillomavirus (HPV) and mouse mammary tumor virus...
July 10, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28705173/conserved-sequences-of-bart-and-bhrf-regions-encoding-viral-micrornas-in-epstein-barr-virus-associated-lymphoma
#19
Keishin Sunagawa, Tsunekazu Hishima, Hitomi Fukumoto, Hideki Hasegawa, Harutaka Katano
OBJECTIVE: Epstein-Barr virus (EBV) encodes at least 25 pri-microRNAs (miRNAs) in two regions of its DNA genome, BART and BHRF. B95-8, an EBV reference strain, has a deletion in the BART region. However, no information is available on the deletions or mutations in the BART and BHRF regions in clinical samples of EBV-associated lymphoma. RESULTS: Nine DNA fragments encoding miR-BARTs and two coding miR-BHRF1s were amplified by PCR from DNA samples extracted from 16 cases of EBV-associated lymphoma...
July 14, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28704988/acute-generalized-exanthema-tous-pustulosis-agep-associated-to-epstein-barr-virus-ebv-infection-reactivation
#20
Simona Giancristoforo, Andrea Diociaiuti, Diana Mennis, Cristina Rota, Cristina Russo, Luana Coltella, Mauro Paradisi, May El Hachem
No abstract text is available yet for this article.
July 11, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
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