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https://www.readbyqxmd.com/read/28927071/microrna-452-suppresses-pancreatic-cancer-migration-and-invasion-by-directly-targeting-b-cell-specific-moloney-murine-leukemia-virus-insertion-site-1
#1
Hongyan Li, Yan Wu, Peixiu Li
Pancreatic cancer, one of the most common cancers globally, is the fourth most common cause of cancer-associated mortality in the USA. The 5-year relative survival rate for patients with pancreatic cancer is ~5% and the median survival time is only 6 months. The poor prognosis is mainly due to early and aggressive local invasion and metastasis, as well as dissemination of the pancreatic cancer cells. The present study demonstrated that microRNA-452 (miR-452) was markedly downregulated in pancreatic cancer tissues, particularly in metastatic tumors and pancreatic cancer cell lines...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28927006/emerging-roles-of-heparanase-in-viral-pathogenesis
#2
REVIEW
Neel Thakkar, Tejabhiram Yadavalli, Dinesh Jaishankar, Deepak Shukla
Heparan sulfate (HS) is ubiquitously expressed on mammalian cells. It is a polysaccharide that binds growth factors, cytokines, and chemokines, and thereby controls several important physiological functions. Ironically, many human pathogens including viruses interact with it for adherence to host cells. HS functions can be regulated by selective modifications and/or selective cleavage of the sugar chains from the cell surface. In mammals, heparanase (HPSE) is the only known enzyme capable of regulating HS functions via a selective endoglycosidase activity that cleaves polymeric HS chains at internal sites...
September 18, 2017: Pathogens
https://www.readbyqxmd.com/read/28926997/effects-of-cellular-methylation-on-transgene-expression-and-site-specific-integration-of-adeno-associated-virus
#3
Diptiman Chanda, Jonathan A Hensel, Jerome T Higgs, Rajat Grover, Niroop Kaza, Selvarangan Ponnazhagan
DNA methylation is a major epigenetic event that affects not only cellular gene expression but that also has the potential to influence bacterial and viral DNA in their host-dependent functions. Adeno-associated virus (AAV) genome contains a high degree of CpG sequences capable of methylation in its terminal repeat sequences, which are the sole elements retained in AAV-based vectors used in gene therapy. The present study determined the influence of methylation status of the host cell on wild type (wt) AAV integration and recombinant (r) AAV transgene expression in HeLa cells...
September 18, 2017: Genes
https://www.readbyqxmd.com/read/28926959/a-new-erythrinan-alkaloid-glycoside-from-the-seeds-of-erythrina-crista-galli
#4
Qing-Wei Tan, Jian-Cheng Ni, Pei-Hua Fang, Qi-Jian Chen
A new Erythrina alkaloid glycoside, named erythraline-11β-O-glucopyranoside, was isolated from the seeds of Erythrina crista-galli L., together with five known Erythrina alkaloids and an indole alkaloid. The structure of the new alkaloid glycoside was elucidated by spectroscopic methods, and all of the compounds were evaluated for their antiviral activity against tobacco mosaic virus.
September 16, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28926860/palivizumab-for-prophylaxis-of-respiratory-syncytial-virus-infections-in-preterm-neonates
#5
Ludwig Gortner
No abstract text is available yet for this article.
September 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/28926748/association-between-infection-burden-and-adult-height
#6
Dawson W Hedges, Andrew N Berrett, Lance D Erickson, Bruce L Brown, Shawn D Gale
Although highly heritable, adult height is also associated with numerous environmental factors, including exposure to infection. Particularly in developing regions of the world, infection burden appears to slow growth during childhood. Using a large database representative of the US population, we examined associations between adult height and leg length and an infection-burden index based on past exposure to Toxocara species, Toxoplasmosis gondii, cytomegalovirus, hepatitis A, hepatitis B, hepatitis C, herpes simplex virus 1, and herpes simplex virus 2...
September 2, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28926641/impact-of-monotherapy-on-hiv-1-reservoir-immune-activation-and-co-infection-with-epstein-barr-virus
#7
Maria Raffaella Petrara, Anna Maria Cattelan, Lolita Sasset, Riccardo Freguja, Francesco Carmona, Silvia Sanavia, Marisa Zanchetta, Paola Del Bianco, Anita De Rossi
OBJECTIVES: Although monotherapy (mART) effectiveness in maintaining viral suppression and CD4 cell count has been extensively examined in HIV-1-infected patients, its impact on HIV-1 reservoir, immune activation, microbial translocation and co-infection with Epstein-Barr Virus (EBV) is unclear. METHODS: This retrospective study involved 32 patients who switched to mART; patients were studied at baseline, 48 and 96 weeks after mART initiation. Thirty-two patients who continued combined antiretroviral therapy (cART) over the same period of time were included in the study...
2017: PloS One
https://www.readbyqxmd.com/read/28926632/risk-analysis-of-inter-species-reassortment-through-a-rift-valley-fever-phlebovirus-mp-12-vaccine-strain
#8
Hoai J Ly, Nandadeva Lokugamage, Shoko Nishiyama, Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula. The causative agent, Rift Valley fever phlebovirus (RVFV), belongs to the genus Phlebovirus in the family Phenuiviridae and causes high rates of abortions in ruminants, and hemorrhagic fever, encephalitis, or blindness in humans. Viral maintenance by mosquito vectors has led to sporadic RVF outbreaks in ruminants and humans in endemic countries, and effective vaccination of animals and humans may minimize the impact of this disease...
2017: PloS One
https://www.readbyqxmd.com/read/28926591/no-evidence-for-the-presence-of-epstein-barr-virus-in-squamous-cell-carcinoma-of-the-mobile-tongue
#9
Torben Wilms, Gulfaraz Khan, Philip J Coates, Nicola Sgaramella, Robin Fåhraeus, Asma Hassani, Pretty S Philip, Lena Norberg Spaak, Luigi Califano, Giuseppe Colella, Katarina Olofsson, Christos Loizou, Renato Franco, Karin Nylander
Squamous cell carcinoma of the head and neck (SCCHN) comprises a large group of cancers in the oral cavity and nasopharyngeal area that typically arise in older males in association with alcohol/tobacco usage. Within the oral cavity, the mobile tongue is the most common site for tumour development. The incidence of tongue squamous cell carcinoma (TSCC) is increasing in younger people, which has been suggested to associate with a viral aetiology. Two common human oncogenic viruses, human papilloma virus (HPV) and Epstein-Barr virus (EBV) are known causes of certain types of SCCHN, namely the oropharynx and nasopharynx, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28926562/generics-for-the-treatment-of-hepatitis-c-in-monoinfected-and-hiv-coinfected-patients-pros-and-cons
#10
Dario Cattaneo, Alessandro Fossati, Chiara Resnati, Massimo Galli, Cristina Gervasoni
The treatment of hepatitis C virus in monoinfected and HIV-coinfected patients has greatly changed over recent years as a result of the introduction of direct-acting antiviral agents (DAAs), which have revolutionized clinical outcomes and led to sustained virological response rates above 90-95%. The discovery of new molecules and the subsequent competition between pharmaceutical companies, together with the negotiated price policies pursued by many national health systems, have led to a gradual reduction in the cost of DAAs, and expand their use to an increasing number of patients, including those with mild liver damage...
September 19, 2017: AIDS Reviews
https://www.readbyqxmd.com/read/28926559/novelties-in-evaluation-and-monitoring-of-human-immunodeficiency-virus-1-infection-is-standard-virological-suppression-enough-for-measuring-antiretroviral-treatment-success
#11
Valentina Svicher, Giulia Marchetti, Adrianna Ammassari, Francesca Ceccherini-Silberstein, Loredana Sarmati
The high potency and tolerability of the currently available antiretroviral drugs has modified HIV-1 infection from a life-threatening disease to a chronic illness. Nevertheless, some issues still remain open to optimize the management of HIV-1 infected patients in term of maintenance of virological suppression over time, identifying patients that could benefit from simplification therapy, and reducing co-mordibities driven by chronic inflammation. The availability of robust and affordable virological and immunological markers can help in solving these issues by providing information on the burden of HIV-1 reservoir in all the anatomical compartments in which the virus replicates as well as on persistent inflammation, immune activation and senescence despite successful virological suppression...
September 19, 2017: AIDS Reviews
https://www.readbyqxmd.com/read/28926404/metabolic-health-across-the-body-mass-index-spectrum-in-hiv-infected-and-hiv-uninfected-men
#12
Jordan E Lake, Xiuhong Li, Frank J Palella, Kristine M Erlandson, Dorothy Wiley, Lawrence Kingsley, Lisa P Jacobson, Todd T Brown
OBJECTIVES: In the general population, metabolic health (MH) often declines as body mass index (BMI) increases. However, some obese individuals maintain MH. HIV and antiretroviral therapy (ART) have been associated with metabolic disturbances. We hypothesized that HIV-infected (HIV+) men on suppressive ART experience less MH than HIV-uninfected (HIV-) men across all BMI categories. DESIGN/METHODS: In a cross-sectional analysis of 1018 HIV+ and 1092 HIV- men enrolled in the Multicenter AIDS Cohort Study, Poisson regression with robust variance determined associations between HIV serostatus and MH prevalence (defined as meeting 2 of 5 NCEP/ATP III metabolic syndrome criteria), adjusting for age, race, BMI category, smoking and hepatitis C virus infection status...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926400/hepatitis-b-hepatitis-c-and-mortality-among-hiv-positive-individuals
#13
Alicia C Thornton, Sophie Jose, Sanjay Bhagani, David Chadwick, David Dunn, Richard Gilson, Janice Main, Mark Nelson, Alison Rodger, Chris Taylor, Elaney Youssef, Clifford Leen, Mark Gompels, Stephen Kegg, Achim Schwenk, Caroline Sabin
OBJECTIVES: To compare rates of all-cause, liver-related and AIDS-related mortality among individuals who are HIV mono-infected with those co-infected with HIV and hepatitis B (HBV) and/or hepatitis C (HCV) viruses. DESIGN: An ongoing observational cohort study collating routinely collected clinical data on HIV-positive individuals attending for care at HIV treatment centres throughout the UK. METHODS: Individuals were included if they had been seen for care from 2004 onwards and had tested for HBV and HCV...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926398/association-of-a-3-untranslated-region-polymorphism-in-pcsk9-with-hiv-viral-load-and-cd4-levels-in-hiv-hepatitis-c-virus-co-infected-women
#14
Mark H Kuniholm, Hua Liang, Kathryn Anastos, Deborah Gustafson, Seble Kassaye, Marek Nowicki, Beverly E Sha, Emilia J Pawlowski, Stephen J Gange, Bradley E Aouizerat, Tatiana Pushkarsky, Michael I Bukrinsky, Vinayaka R Prasad
OBJECTIVE: To assess variation in genes that regulate cholesterol metabolism in relation to the natural history of HIV infection. DESIGN: Cross-sectional and longitudinal analysis of the Women's Interagency HIV Study (WIHS). METHODS: We examined 2,050 single nucleotide polymorphisms (SNPs) in 19 genes known to regulate cholesterol metabolism in relation to HIV viral load and CD4 T cell levels in a multiracial cohort of 1,066 antiretroviral therapy (ART) naïve women...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926397/time-to-first-positive-hiv-1-dna-pcr-may-differ-with-antiretroviral-regimen-in-infants-infected-with-non-b-subtype-hiv-1
#15
Raji Balasubramanian, Mary Glenn Fowler, Kenneth Dominguez, Shahin Lockman, Pat A Tookey, Nicole Ngo Giang Huong, Steven Nesheim, Michael D Hughes, Marc Lallemant, Jennifer Tosswill, Nathan Shaffer, Gayle Sherman, Paul Palumbo, David E Shapiro
OBJECTIVE: To evaluate the association of type and timing of prophylactic maternal and infant antiretroviral regimen with time to first positive HIV-1 DNA polymerase chain reaction (PCR) test, in non-breastfed HIV-infected infants from populations infected predominantly with HIV-1 non-B subtype virus. DESIGN: Analysis of combined data on non-breastfed HIV-infected infants from prospective cohorts in Botswana, Thailand and the United Kingdom (n = 405). METHODS: Parametric models appropriate for interval-censored outcomes estimated the time to first positive PCR according to maternal or infant antiretroviral regimen category and timing of maternal antiretroviral initiation, with adjustment for covariates...
September 18, 2017: AIDS
https://www.readbyqxmd.com/read/28926326/prevalence-of-hepatitis-a-virus-antibody-in-portuguese-travelers-a-new-paradigm
#16
Sónia Rocha, Sandra Tejo, Eugénia Ferreira, Luís Trindade, Eduardo Rabadão, Nuno Marques, José Saraiva da Cunha
INTRODUCTION: In Portugal, the prevalence of hepatitis A virus infection has decreased in the past decades, especially in young adults. The aim of this study was to detect the prevalence of antibody to hepatitis A virus in a population observed in our Travel Clinic. MATERIAL AND METHODS: Antibodies against hepatitis A, hepatitis B, hepatitis C and human immunodeficiency virus were tested using standard enzyme immunoassay in patients older than 18. The exclusion criteria were: prior vaccination for hepatitis A virus, previous diagnosis of infection with hepatitis B virus, hepatitis C virus and/or human immunodeficiency virus, foreign travelers and long-term expatriates...
August 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28926265/tobacco-mosaic-virus-delivered-cisplatin-restores-efficacy-in-platinum-resistant-ovarian-cancer-cells
#17
Christina E Franke, Anna E Czapar, Ravi B Patel, Nicole F Steinmetz
Platinum resistance in ovarian cancer is the major determinant of disease prognosis. Resistance can first appear at the onset of disease or develop in response to platinum-based chemotherapy. Due to poor response to alternate chemotherapies and lack of targeted therapies, there is an urgent clinical need for a new avenue toward treatment of platinum-resistant (PR) ovarian cancer. Nanoscale delivery systems hold potential to overcome resistance mechanisms. In this work, we present tobacco mosaic virus (TMV) as a nanocarrier for cisplatin for treatment of PR ovarian cancer cells...
September 19, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28926120/glecaprevir-pibrentasvir-for-hcv-genotype-3-patients-with-cirrhosis-and-or-prior-treatment-experience-a-partially-randomized-phase-iii-clinical-trial
#18
David Wyles, Fred Poordad, Stanley Wang, Laurent Alric, Franco Felizarta, Paul Y Kwo, Benedict Maliakkal, Kosh Agarwal, Tarek Hassanein, Frank Weilert, Samuel S Lee, Jens Kort, Sandra S Lovell, Ran Liu, Chih-Wei Lin, Tami Pilot-Matias, Preethi Krishnan, Federico J Mensa
BACKGROUND: This study assessed the efficacy and safety of ribavirin (RBV)-free coformulated glecaprevir/pibrentasvir (G/P) in patients with hepatitis C virus (HCV) genotype (GT) 3 infection with either prior treatment experience and/or compensated cirrhosis, a patient population with limited treatment options. METHODS: SURVEYOR-II, Part 3 was a partially-randomized, open-label, multicenter, phase 3 study. Treatment-experienced (prior interferon (IFN) or pegIFN ± ribavirin or SOF plus ribavirin ± pegIFN therapy) patients without cirrhosis were randomized 1:1 to receive 12 or 16 weeks of G/P (300 mg/120 mg) once daily...
September 19, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28926109/role-of-viruses-in-gastrointestinal-cancer
#19
REVIEW
Habibollah Mirzaei, Hossein Goudarzi, Gita Eslami, Ebrahim Faghihloo
Gastrointestinal cancers are a global public health problem, which represent a vast majority of all cancer-caused deaths in both men and women. On the other hand, viral pathogens have been long implicated as etiological factors in the onset of certain human cancers, including gastrointestinal tumors. In this regard, Human Papilloma Virus (HPV), Epstein - Barr Virus (EBV) and John Cunningham Virus (JCV) have been more strongly suggested to be involved in gastrointestinal carcinogenesis; so that, the association of HPV with oropharyngeal and anal cancers and also the association of EBV with gastric cancer have been etiologically confirmed by epidemiological and experimental investigations...
September 19, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28926080/polio-n%C3%A3-rmar-sig-utrotning
#20
Erling Norrby, Ingrid Uhnoo, Mia Brytting, Katherina Zakikhany, Tiia Lepp, Patrick Olin
Polio close to eradication The WHO Global Polio Eradication Initiative has been highly successful. With a dramatic decrease in polio since it started in 1988, the number of globally reported cases reached a record low of 37 in 2016. This article describes the WHO Endgame Strategic Plan including milestones that have been reached and challenges that have to be overcome in order to reach the goal of polio eradication by 2020. Efforts to strengthen immunizations systems and to detect and interrupt polio virus transmission focus on the three remaining endemic countries, namely Pakistan, Afghanistan and Nigeria...
September 19, 2017: Läkartidningen
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