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https://www.readbyqxmd.com/read/28454112/the-challenge-of-treating-hepatitis-c-virus-associated-cryoglobulinemic-vasculitis-in-the-era-of-anti-cd20-monoclonal-antibodies-and-direct-antiviral-agents
#1
REVIEW
Dario Roccatello, Savino Sciascia, Daniela Rossi, Laura Solfietti, Roberta Fenoglio, Elisa Menegatti, Simone Baldovino
Mixed cryoglobulinemia syndrome (MC) is a systemic vasculitis involving kidneys, joints, skin, and peripheral nerves. While many autoimmune, lymphoproliferative, and neoplastic disorders have been associated with this disorder, hepatitis C virus (HCV) is known to be the etiologic agent in the majority of patients. Therefore, clinical research has focused on anti-viral drugs and, more recently, on the new, highly potent Direct-acting Antiviral Agents (DAAs). These drugs assure sustained virologic response (SVR) rates >90%...
April 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28453849/association-between-frailty-and-components-of-the-frailty-phenotype-with-modifiable-risk-factors-and-antiretroviral-therapy
#2
Kristine M Erlandson, Kunling Wu, Susan L Koletar, Robert C Kalayjian, Ronald J Ellis, Babafemi Taiwo, Frank J Palella, Katherine Tassiopoulos
The impact of antiretroviral therapy (ART) on frailty among human immunodeficiency virus (HIV)-infected adults has not been well described. HIV-infected participants aged ≥40 years with initial ART receipt through a randomized, controlled AIDS Clinical Trials Group trial completed a frailty assessment. Ordinal logistic regression models examined factors associated with frailty. Of 1016 participants, 6% were frail, and 38% were prefrail. Frailty was associated with lower education, older age, Medicare/Medicaid, initial efavirenz, smoking, obesity, and neurocognitive impairment; physical activity and alcohol use were protective...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453843/inflammation-and-immune-activation-in-antiretroviral-treated-human-immunodeficiency-virus-type-1-infected-african-infants-and-rotavirus-vaccine-responses
#3
Priyanka Uprety, Jane C Lindsey, Myron J Levin, Kaitlin Rainwater-Lovett, Carrie Ziemniak, Mutsa Bwakura-Dangarembizix, Susan S Kaplan, Micki Nelson, Amanda Zadzilka, Adriana Weinberg, Deborah Persaud
00880698.
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453840/modulation-of-the-host-environment-by-human-cytomegalovirus-with-viral-interleukin-10-in-peripheral-blood
#4
Vivian P Young, Margarette C Mariano, Carolyn C Tu, Kathryn M Allaire, Selmir Avdic, Barry Slobedman, Juliet V Spencer
Background.: Human cytomegalovirus (HCMV) is a herpesvirus with both lytic and latent life cycles. Human cytomegalovirus encodes 2 viral cytokines that are orthologs of human cellular interleukin 10 (cIL-10). Both cytomegalovirus interleukin 10 (cmvIL-10) and Latency-associated cytomegalovirus interleukin 10 (LAcmvIL-10) (collectively vIL-10) are expressed during lytic infection and cause immunosuppressive effects that impede virus clearance. LAcmvIL-10 is also expressed during latent infection of myeloid progenitor cells and monocytes and facilitates persistence...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453838/impact-of-pre-exposure-history-and-host-genetics-on-antibody-avidity-following-norovirus-vaccination
#5
Lisa C Lindesmith, Michael L Mallory, Taylor A Jones, Charles Richardson, Robert R Goodwin, Frank Baehner, Paul M Mendelman, Robert F Bargatze, Ralph S Baric
Background.: Development of high avidity, broadly neutralizing antibodies (Abs) is a priority after vaccination against rapidly evolving, widely disseminated viruses like human norovirus. After vaccination with a multivalent GI.1 and GII.4c norovirus virus-like particle (VLP) vaccine candidate adjuvanted with alum and monophosphoryl lipid A (MPL), blockade Ab titers peaked early, with no increase in titer following a second vaccine dose. Methods.: Blockade Ab relative avidity was evaluated by measuring the slope of blockade Ab neutralization curves...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453835/herpes-simplex-virus-type-2-acquisition-among-hiv-1-infected-adults-treated-with-tenofovir-disoproxyl-fumarate-as-part-of-combination-antiretroviral-therapy-results-from-the-actg-a5175-pearls-study
#6
Connie Celum, Ting Hong, Anne Cent, Deborah Donnell, Rhoda Morrow, Jared M Baeten, Cynthia Firnhaber, Beatriz Grinsztejn, Mina C Hosseinipour, Umesh Lalloo, Mulinda Nyirenda, Cynthia Riviere, Jorge Sanchez, Breno Santos, Khuanchai Supparatpinyo, James Hakim, N Kumarasamy, Thomas B Campbell
Objective.: Tenofovir disoproxyl fumarate (TDF) disoproxyl fumarate (TDF) has in vitro activity against herpes simplex virus type 2 (HSV-2) and reduced HSV-2 acquisition as preexposure prophylaxis. Whether TDF-containing antiretroviral therapy (ART) reduces HSV-2 acquisition is unknown. Design.: Secondary analysis of AIDS Clinical Trials Group A5175, a randomized, open-label study of 3 ART regimens among 1571 participants. Methods.: HSV-2 serostatus was assessed at baseline, at study exit, and before a change in ART regimen...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453696/epstein-barr-virus-associated-gastric-cancer-reveals-intratumoral-heterogeneity-of-pik3ca-mutations
#7
C Böger, S Krüger, H M Behrens, S Bock, J Haag, H Kalthoff, C Röcken
Background: Recent whole-genome sequencing identified four molecular subtypes of gastric cancer (GC), of which the subgroup of Epstein-Barr virus-associated GC (EBVaGC) showed a significant enrichment of PIK3CA mutations. We here aimed to validate independently the enrichment of PIK3CA mutations in EBVaGC of a Central European GC cohort, to correlate EBV status with clinico-pathological patient characteristics and to test for a major issue of GC, intratumoral heterogeneity. Patients and methods: In a first step, 484 GCs were screened for EBV and PIK3CA hot spot mutations of exon 9/20 using EBER in situ hybridization and pyrosequencing, respectively...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28453414/innate-immune-gene-transcript-level-associated-with-the-infection-of-macrophages-with-ectromelia-virus-in-two-different-mouse-strains
#8
Patryk Dolega, Lidia Szulc-Dąbrowska, Magdalena Bossowska, Matylda Mielcarska, Zuzanna Nowak, Felix N Toka
Poxviruses have evolved numerous mechanisms to avoid the immune response of the infected host, and many of these mechanisms have not been fully described. Here, we studied the transcriptional response of innate immune genes in BALB/c and C57BL/6 peritoneal macrophages following infection with the Moscow strain of ectromelia virus (ECTV-Mos) with the aim of delineating innate immune genes that contribute to the difference between susceptibility and resistance to lethal infection. We show a generalized downregulation of many genes in four categories (toll-like receptor signaling, NOD-like receptor signaling, RIG-I-like receptor signaling, and type I interferon signaling) of antiviral innate immune receptors, downstream signaling pathways, and responsive components...
April 28, 2017: Viral Immunology
https://www.readbyqxmd.com/read/28453396/pharmacogenetic-analysis-of-hepatitis-c-virus-related-mixed-cryoglobulinemia
#9
Jessica Cusato, Lucio Boglione, Amedeo De Nicolò, Chiara Simona Cardellino, Chiara Carcieri, Giuseppe Cariti, Giovanni Di Perri, Antonio D'Avolio
AIM: Mixed cryoglobulinemia (MC) is an extra hepatic hepatitis C virus related problem and different studies suggested genetics' role in predicting this complication. We evaluated the influence of SNPs in IL-28B, SLC29A1, SLC28A2, NT5C2, HNF4 and ABCB1 genes in MC prediction. PATIENTS & METHODS: SNPs were evaluated through real-time PCR. RESULTS:  ABCB1 (gene encoding P-glycoprotein) 3435C>T SNP was associated with MC presence (p = 0.034): related to T allele carriers (CC vs CT/TT), we reached a p-value of 0...
April 28, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28449425/-the-clinical-significance-of-serum-alpha-fetoprotein-in-diagnosing-hepatocellular-carcinoma-in-a-health-screening-population
#10
Young Sun Ko, Joo Hwan Bae, Dong Hyun Sinn, Geum Youn Gwak, Wonseok Kang, Yong Han Paik, Moon Seok Choi, Joon Hyeok Lee, Kwang Cheol Koh, Seung Woon Paik
Background/Aims: Serum alpha-fetoprotein (AFP) measurement is commonly included in a health check-up program in Korea. However, its benefits remain uncertain. We analyzed whether AFP measurement should be included in a general health check-up program to screen for hepatocellular carcinoma (HCC). Methods: A total of 36,552 adults aged 18 years or older-who participated in a routine health examination including AFP determination between January 2009 and December 2009 at the Health Promotion Center, Samsung Medical Center, South Korea-were analyzed...
April 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28449343/cost-effectiveness-of-the-highly-effective-direct-acting-antivirals-in-the-treatment-of-chronic-hepatitis-c-in-hong-kong
#11
Angeline Oi-Shan Lo, Henry Lik-Yuen Chan, Vincent Wai-Sun Wong, Grace Lai-Hung Wong
BACKGROUND AND AIM: In Asia-Pacific where cost is a major concern, peginterferon plus ribavirin (PR) often remain as the standard of care in chronic hepatitis C (CHC) treatment, while the direct-acting antivirals (DAAs) are commonly recommended as retreatment. Newer DAAs can achieve a sustained virological response (SVR) of nearly 100% with pan-genotypic coverage, that is "Highly Effective DAAs." We aimed to investigate the most desirable cost range for the Highly Effective DAAs using Hong Kong as an example...
May 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28449272/adalimumab-is-a-safe-option-for-psoriasis-patients-with-concomitant-hepatitis-b-or-c-infection-a-multicentre-cohort-study-of-37-patients-and-review-of-the-literature-%C3%A2-reply-to-dr-ricceri-letter
#12
Stefano Piaserico
We thank Ricceri et al. for their comments (1) and interest in our study (2). Despite the recent advances in prevention and treatment of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections, these two chronic infections still represent the most common cause of chronic liver disease. Dermatologists are frequently encountering patients with psoriatic disease who have concomitant HBV or HCV infection in daily clinical practice. Dr Ricceri provided in his letter further long-term follow-up data (60 months) on the use of etanercept or adalimumab in 17 psoriatic patients affected by past HBV infection or chronic HCV infection...
April 27, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28449248/betanodavirus-dissection-of-the-viral-life-cycle
#13
REVIEW
C-F Low, B Syarul Nataqain, H-Y Chee, M Z H Rozaini, M Najiah
Progressive research has been recently made in dissecting the molecular biology of Betanodavirus life cycle, the causative pathogen of viral encephalopathy and retinopathy in economic important marine fish species. Establishment of betanodavirus infectious clone allows the manipulation of virus genome for functional genomic study, which elucidates the biological event of the viral life cycle at molecular level. The betanodavirus strategizes its replication by expressing anti-apoptosis/antinecrotic proteins to maintain the cell viability during early infection...
April 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28449246/review-article-hepatitis-e-a-concise-review-of-virology-epidemiology-clinical-presentation-and-therapy
#14
REVIEW
M C Donnelly, L Scobie, C L Crossan, H Dalton, P C Hayes, K J Simpson
BACKGROUND: Hepatitis E virus (HEV) is a leading cause of acute icteric hepatitis and acute liver failure in the developing world. During the last decade, there has been increasing recognition of autochthonous (locally acquired) HEV infection in developed countries. Chronic HEV infection is now recognised, and in transplant recipients this may lead to cirrhosis and organ failure. AIM: To detail current understanding of the molecular biology of HEV, diagnostic and therapeutic strategies and propose future directions for basic science and clinical research...
April 27, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28449189/reply-adalimumab-is-a-safe-option-for-psoriasis-patients-with-concomitant-hepatitis-b-or-c-infection-a-multicentre-cohort-study-of-37-patients-and-review-of-the-literature
#15
F Ricceri, L Pescitelli, L Lazzeri, A Di Cesare, F Prignano
We have read with interest the article by Piaserico et al. concerning the use of tumour necrosis factor-alpha (TNF-alpha) blocking agent adalimumab in psoriatic patients with concomitant hepatitis B virus (HBV) or hepatitis C virus (HCV). The authors describe 17 psoriatic patients affected by chronic HBV infection and 20 affected by chronic HCV who were successfully treated with adalimumab with no evidence of HBV or HCV reactivation in a mean follow-up period of 27 and 40 months, respectively. We have previously described our successful experience of treatment with anti-TNF-alpha therapy in 17 psoriatic patients (11 with past HBV infection, 5 with chronic HCV infection and one affected by both HBV and HCV) without the use of lamivudine or adenofovir, and can now report on long-term follow-up data (mean follow-up period of 60 months)...
April 27, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28449115/estimation-of-state-level-prevalence-of-hepatitis-c-virus-infection-us-states-and-district-of-columbia-2010
#16
Eli S Rosenberg, Eric W Hall, Patrick S Sullivan, Travis H Sanchez, Kimberly A Workowski, John W Ward, Deborah Holtzman
Background.: Hepatitis C virus (HCV) infection is the most common chronic blood-borne infection in the United States and a leading cause of morbidity and mortality. Previous analyses of the US National Health and Nutrition Examination Survey (NHANES) indicated approximately 3.6 million noninstitutionalized persons with antibody to HCV (anti-HCV). However, state-level prevalence remains less understood and cannot be estimated reliably from NHANES alone. Methods.: We used 3 publicly available government data sources to estimate anti-HCV prevalence in each US state among noninstitutionalized persons aged ≥18 years...
April 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28448999/outcome-of-all-oral-direct-acting-antiviral-regimens-on-the-rate-of-development-of-hepatocellular-carcinoma-in-patients-with-hepatitis-c-virus-genotype-1-related-chronic-liver-disease
#17
Fumihiro Ogata, Masahiro Kobayashi, Norio Akuta, Mitutaka Osawa, Shunichiro Fujiyama, Yusuke Kawamura, Hitomi Sezaki, Tetsuya Hosaka, Mariko Kobayashi, Satoshi Saitoh, Yoshiyuki Suzuki, Fumitaka Suzuki, Yasuji Arase, Kenji Ikeda, Hiromitsu Kumada
OBJECTIVES: There is little information on the risk factors for hepatocellular carcinoma (HCC) and outcome of treatment with an all-oral combination of direct-acting antiviral regimens following eradication of hepatitis C virus (HCV) RNA. METHODS: The study subjects were 1,170 patients with HCV genotype 1-related chronic liver disease treated with either NS5A inhibitor plus NS3/4A protease inhibitor (n = 707), NS5A inhibitor plus NS5B polymerase inhibitor (n = 345), or NS5A inhibitor, NS3/4A protease inhibitor plus ritonavir (n = 118), for 12-24 weeks...
April 28, 2017: Oncology
https://www.readbyqxmd.com/read/28448574/fusion-expression-of-occludin-extracellular-loops-and-an-%C3%AE-helical-bundle-a-new-research-model-for-tight-junction
#18
Xiaojing Chi, Xia Zhao, Wei Wang, Yuqiang Niu, Min Cheng, Xiuying Liu, Sheng Cui, Wei Yang
Tight junctions (TJs) are the outermost structures of intercellular junctions and are highly specialized membrane domains involved in many important cellular processes. However, most TJ proteins are four-time transmembrane proteins and are difficult to express in their correct soluble form, which limits their functional study and therapeutic application. Human occludin (OCLN) is a major component of TJs and an essential co-receptor for hepatitis C virus (HCV) cell entry. To explore expression strategy for recombinant TJ proteins possessing integrated and functional extracellular loops, OCLN was here used as a model molecule, and several prokaryotic fusion constructs were designed by docking OCLN extracellular loops (ECLs) to HIV-1 gp41 NHR and CHR six-helical bundle (6HV1); then their biophysical features and anti-HCV activity were evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/28448507/detecting-the-impact-of-temperature-on-transmission-of-zika-dengue-and-chikungunya-using-mechanistic-models
#19
Erin A Mordecai, Jeremy M Cohen, Michelle V Evans, Prithvi Gudapati, Leah R Johnson, Catherine A Lippi, Kerri Miazgowicz, Courtney C Murdock, Jason R Rohr, Sadie J Ryan, Van Savage, Marta S Shocket, Anna Stewart Ibarra, Matthew B Thomas, Daniel P Weikel
Recent epidemics of Zika, dengue, and chikungunya have heightened the need to understand the seasonal and geographic range of transmission by Aedes aegypti and Ae. albopictus mosquitoes. We use mechanistic transmission models to derive predictions for how the probability and magnitude of transmission for Zika, chikungunya, and dengue change with mean temperature, and we show that these predictions are well matched by human case data. Across all three viruses, models and human case data both show that transmission occurs between 18-34°C with maximal transmission occurring in a range from 26-29°C...
April 27, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28448437/sulfiredoxin-may-promote-cervical-cancer-metastasis-via-wnt-%C3%AE-catenin-signaling-pathway
#20
Kangyun Lan, Yuni Zhao, Yue Fan, Binbin Ma, Shanshan Yang, Qin Liu, Hua Linghu, Hui Wang
The abnormal elevation of sulfiredoxin (Srx/SRXN1)-an antioxidant enzyme whose main function is to protect against oxidative stress-has been shown to be closely correlated with the progression of several types of cancer, including human cervical cancer. However, the molecular mechanism by which Srx promotes tumor progression, especially cancer metastasis in cervical cancer, has not been elucidated. Here, we show that Srx expression gradually increases during the progression of human cervical cancer and its expression level is closely correlated with lymph node metastasis...
April 27, 2017: International Journal of Molecular Sciences
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