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https://www.readbyqxmd.com/read/28432927/type-2-bvdv-n-pro-suppresses-ifn-1-pathway-signaling-in-bovine-cells-and-augments-brsv-replication
#1
Abdulrahman A Alkheraif, Christina L Topliff, Jay Reddy, Chandirasegaran Massilamany, Ruben O Donis, Gregor Meyers, Kent M Eskridge, Clayton L Kelling
Bovine viral diarrhea virus (BVDV) infection induces immunosuppression and in conjunction with bovine respiratory syncytial virus (BRSV) contributes to the bovine respiratory disease complex. Bovine turbinate cells were single or co-infected with type 2 BVDV wild-type (BVDV2-wt), its dysfunctional N(pro) mutant (BVDV2-E), and/or BRSV. BVDV2-E significantly up-regulated PKR, IRF-7, TBK-1, IRF-3, and IFN-β mRNAs based on real-time Q-RT-PCR. BRSV-infected cells expressed significantly up-regulated PKR, IRF-3, IRF-7, and IFN-β mRNAs, whereas BVDV2-wt, but not BVDV2-E, abolished this up-regulation in co-infection...
April 19, 2017: Virology
https://www.readbyqxmd.com/read/28430385/significant-reductions-in-alcohol-use-after-hepatitis-c-treatment-results-from-the-french-anrs-co13-hepavih-cohort
#2
Rod Knight, Perrine Roux, Antoine Vilotitch, Fabienne Marcellin, Eric Rosenthal, Laure Esterle, François Boué, David Rey, Lionel Piroth, Stéphanie Dominguez, Philippe Sogni, Dominique Salmon-Ceron, Bruno Spire, Maria Patrizia Carrieri
BACKGROUND AND AIMS: Few data exist on changes to substance use patterns before and after hepatitis C virus (HCV) treatment. We used longitudinal data of HIV-HCV co-infected individuals to examine whether receiving Peg-interferon (Peg-IFN)-based therapy irrespective of HCV clearance could modify tobacco, cannabis and alcohol use. DESIGN: A prospective cohort of HIV-HCV co-infected individuals was enrolled from 2006. Participants' clinical data were retrieved from medical records and socio-demographic and behavioral characteristics were collected by yearly self-administered questionnaires...
April 21, 2017: Addiction
https://www.readbyqxmd.com/read/28430102/variable-virulence-phenotype-of-xenorhabdus-bovienii-%C3%AE-proteobacteria-enterobacteriaceae-in-the-absence-of-their-vector-hosts
#3
John G McMullen, Rebecca McQuade, Jean-Claude Ogier, Sylvie Pagès, Sophie Gaudriault, S Patricia Stock
Xenorhabdus bovienii bacteria have a dual lifestyle: they are mutualistic symbionts to many species of Steinernema nematodes and are pathogens to a wide array of insects. Previous studies have shown that virulence of X.bovienii-Steinernema spp. pairs decreases when the nematodes associate with non-cognate bacterial strains. However, the virulence of the X. bovienii strains alone has not been fully investigated. In this study, we characterized the virulence of nine X. bovienii strains in Galleria mellonella and Spodoptera littoralis and performed a comparative genomic analysis to correlate observed phenotypes with strain genotypes...
April 22, 2017: Microbiology
https://www.readbyqxmd.com/read/28429890/prevalence-of-the-reversed-halo-sign-in-neutropenic-patients-compared-with-non-neutropenic-patients-data-from-a-single-centre-study-involving-27-patients-with-pulmonary-mucormycosis-2003-2016
#4
Jessie Bourcier, Pierre-Marie Heudes, Florent Morio, Thomas Gastinne, Patrice Chevallier, Fanny Rialland-Battisti, Claire Garandeau, Isabelle Danner-Boucher, Patrice Le Pape, Eric Frampas, Philippe Moreau, Claire Defrance, Pierre Peterlin
Pulmonary mucormycosis (PM) is a life-threatening infection and the diagnosis can be challenging. The objective was to retrospectively explore the value of the RHS in our cohort of 27 patients with mucormycosis and its relation to neutropenia. This was a retrospective study including all patients with a diagnosis of probable or proven invasive PM according to the 2008 EORTC/MSG criteria between September 2003 to April 2016. Fisher's exact test and Mann-Whitney test, with a P-value statistically significant under ...
April 21, 2017: Mycoses
https://www.readbyqxmd.com/read/28427963/molecular-investigation-of-piroplasma-infection-in-white-yaks-bos-grunniens-in-gansu-province-china
#5
Sitong Li, Junlong Liu, Aihong Liu, Youquan Li, Shuqing Wang, Shufang Wang, Hong Yin, Jianxun Luo, Guiquan Guan
Piroplasmosis, including theileriosis and babesiosis, is a tick-borne haemoprotozoan disease responsible for huge economic losses to livestock industry. In China, the biology of piroplasms infective to cattle was well understood on the basis of pathogen detection isolations and molecular epidemiological surveys in the past few decades. But very limited information about the infection status of piroplasms in white yak (Bos grunniens), a semi-wild and endemic breed, has been recorded, so far. A total of 350 blood samples was collected from white yaks in 11 towns of Tianzhu Tibetan Autonomous County of Gansu province, China, during April to July, 2015...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28425774/profile-of-the-triplex-assay-for-detection-of-chlamydia-gonorrhea-and-trichomonas-using-the-bd-max%C3%A2-system
#6
Barbara Van Der Pol
Chlamydia, gonorrhea and trichomonas are the most common curable STI. Improved access to testing could reduce infection rates and prevent sequelae. Nucleic acid amplification tests are the recommend class of diagnostic assay for these infections which are often asymptomatic. Areas Covered: A description of the BD MAX™ System (MAX) and the BD MAX CT/GC/TV assay is provided along with data from a large US clinical trial. The capacity of the system for other tests and for lab developed assays is also described...
April 20, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28424665/ca-similichlamydia-in-epitheliocystis-co-infection-of-gilthead-seabream-gills-unique-morphological-features-of-a-deep-branching-chlamydial-family
#7
Helena M B Seth-Smith, Pantelis Katharios, Nancy Dourala, José M Mateos, Alexander G J Fehr, Lisbeth Nufer, Maja Ruetten, Maricruz Guevara Soto, Lloyd Vaughan
The Planctomycetes-Verrucomicrobia-Chlamydiae (PVC) bacterial superphylum constitutes a broad range of organisms with an intriguing array of ultrastructural morphologies, including intracellular membranes and compartments and their corresponding complex genomes encoding these forms. The phylum Chlamydiae are all obligate intracellular bacteria and, although much is already known of their genomes from various families and how these regulate the various morphological forms, we know remarkably little about what is likely the deepest rooting clade of this phylum, which has only been found to contain pathogens of marine and fresh water vertebrates...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28424526/the-impact-of-host-sex-on-the-outcome-of-co-infection
#8
Olivia Thompson, Stephen A Y Gipson, Matthew D Hall
Males and females vary in many characteristics that typically underlie how well a host is able to fight infection, such as body-size, immune capacity, or energy availability. Although well studied in the context of sexual signalling, there is now growing recognition that these differences can influence aspects of pathogen evolution as well. Here we consider how co-infection between multiple pathogen strains is shaped by male-female differences. In natural populations, infections by more than one pathogen strain or species are believed to be a widespread occurrence...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28424083/erratum-to-the-impact-of-co-infections-on-fish-a-review
#9
Mohamed H Kotob, Simon Menanteau-Ledouble, Gokhlesh Kumar, Mahmoud Abdelzaher, Mansour El-Matbouli
No abstract text is available yet for this article.
April 19, 2017: Veterinary Research
https://www.readbyqxmd.com/read/28419653/hcv-viremia-associates-with-nk-cell-activation-and-dysfunction-in-anti-retroviral-hiv-hcv-co-infected-subjects
#10
E Papasavvas, L Azzoni, X Yin, Q Liu, J Joseph, A Mackiewicz, B Ross, K M Lynn, J M Jacobson, K Mounzer, J R Kostman, L J Montaner
The impact of Hepatitis C virus (HCV) RNA levels on immune status in chronically HCV mono-infected when compared to HIV/HCV co-infected on antiretroviral therapy (ART) remains poorly understood. A total of 78 African American subjects HCV viremic/naïve to HCV treatment (33 HCV genotype 1 mono-infected, 45 HCV genotype 1/HIV co-infected on ART) were studied. Clinical and liver enzymes measurements were performed. Whole blood was analyzed for immune subset changes by flow-cytometry. Peripheral blood mononuclear cells (PBMC) were used for same-day constitutive and in vitro Interferon (IFN)-α-induced Signal Transducer and Activator of Transcription (STAT) phosphorylation, K562 target cell lysis and K562 target cell recognition-mediated IFN-γ production...
April 17, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28419136/occurrence-of-leishmania-infantum-in-the-central-nervous-system-of-naturally-infected-dogs-parasite-load-viability-co-infections-and-histological-alterations
#11
Valéria da Costa Oliveira, Viviane Cardoso Boechat, Artur Augusto Velho Mendes Junior, Maria de Fátima Madeira, Luiz Claudio Ferreira, Fabiano Borges Figueiredo, Monique Paiva Campos, Francisco das Chagas de Carvalho Rodrigues, Raquel de Vasconcellos Carvalhaes de Oliveira, Maria Regina Reis Amendoeira, Rodrigo Caldas Menezes
Zoonotic visceral leishmaniasis is caused by the protozoan Leishmania infantum and little is known about the occurrence and pathogenesis of this parasite in the CNS. The aims of this study were to evaluate the occurrence, viability and load of L. infantum in the CNS, and to identify the neurological histological alterations associated with this protozoan and its co-infections in naturally infected dogs. Forty-eight Leishmania-seropositive dogs from which L. infantum was isolated after necropsy were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28418984/anger-and-quality-of-life-in-patients-co-infected-with-hiv-and-hepatitis-c-virus-a-cross-sectional-study-anrs-co13-hepavih
#12
Fabienne Marcellin, Camelia Protopopescu, Laure Esterle, Linda Wittkop, Lionel Piroth, Hugues Aumaitre, Olivier Bouchaud, Cécile Goujard, Daniel Vittecoq, François Dabis, Dominique Salmon-Ceron, Bruno Spire, Perrine Roux, Maria P Carrieri
OBJECTIVE: The aim of this study is to document the relationship between anger dimensions (state, trait, expression, and control) and quality of life (QoL) in patients co-infected with HIV and hepatitis C virus (HCV). PATIENTS AND METHODS: This is a cross-sectional study nested in the ANRS CO13-HEPAVIH French national cohort. Anger and QoL were assessed using self-administered questionnaires in 536 HIV-HCV-co-infected patients. Correlations between anger scores (STAXI-2 scale) and QoL scores (WHOQOL-HIV BREF scale) were assessed using Spearman's coefficients...
April 17, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28417347/-serological-markers-of-viral-hepatitis-b-and-c-in-children-with-sickle-cell-disease-monitored-in-the-pediatrics-department-at-the-university-hospital-of-bobo-dioulasso-burkina-faso
#13
S A Kissou, M Koura, A Sawadogo, A-S Ouédraogo, H Traoré, E Kamboulé, W W F Zogona, B Nacro
Viral hepatitis B and C are universal public health problems. Burkina Faso is a high endemic area for hepatitis B. Patients with sickle cell disease are at risk. The aim of this study was to investigate and quantify the serological markers of viral hepatitis B and C among pediatric patients with sickle cell disease. This was a descriptive cross-sectional study, which took place from July to November 2014 at the Department of Pediatrics, University Hospital of Bobo- Dioulasso. The study included 44 SS and 26 SC sickle cell patients...
April 17, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28417272/early-administration-of-neuraminidase-inhibitors-in-adult-patients-hospitalized-for-influenza-does-not-benefit-survival-a-retrospective-cohort-study
#14
S-H Choi, T Kim, K-H Park, Y G Kwak, J-W Chung, M S Lee
The administration of neuraminidase inhibitors (NAIs) within 2 days after the onset of symptoms (early NAI therapy) has been shown to reduce mortality in adult patients with severe influenza. However, there is no sufficiently solid evidence supporting the effectiveness of early NAI therapy on mortality. We reviewed the clinical data from 506 adult patients who were hospitalized for influenza between March 2010 and March 2014, to investigate the impact of early NAI therapy on mortality. Nearly one-third of the study patients were infected with influenza B (influenza A, influenza B, and co-infection of both in 68...
April 18, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28417245/elbasvir-grazoprevir-a-review-in-chronic-hcv-genotypes-1-and-4
#15
Zaina T Al-Salama, Emma D Deeks
A fixed-dose combination tablet comprising the hepatitis C virus (HCV) NS5A inhibitor elbasvir and the HCV NS3/4A protease inhibitor grazoprevir (elbasvir/grazoprevir; Zepatier™) was recently approved for the treatment of chronic HCV genotype 1 and 4 infection in the EU and the USA. In phase III trials, 12 or 16 weeks of treatment with once-daily elbasvir/grazoprevir (fixed-dose tablet or as individual agents), taken with or without ribavirin, generally provided high rates of sustained virological response at 12 weeks (SVR12) in treatment-naive and -experienced adult patients with chronic HCV genotype 1a, 1b or 4 infection, including those with or without compensated cirrhosis, HIV co-infection, inherited blood disorders or chronic kidney disease or patients receiving opioid agonist therapy or of Japanese origin...
April 17, 2017: Drugs
https://www.readbyqxmd.com/read/28415995/type-i-interferon-signaling-is-required-for-the-apobec3-rfv3-dependent-neutralizing-antibody-response-but-not-innate-retrovirus-restriction
#16
Bradley S Barrett, Michael S Harper, Sean T Jones, Kejun Guo, Karl J Heilman, Ross M Kedl, Kim J Hasenkrug, Mario L Santiago
BACKGROUND: APOBEC3/Rfv3 restricts acute Friend retrovirus (FV) infection and promotes virus-specific neutralizing antibody (NAb) responses. Classical Rfv3 studies utilized FV stocks containing lactate-dehydrogenase elevating virus (LDV), a potent type I interferon inducer. Previously, we showed that APOBEC3 is required for the anti-FV activity of exogenous IFN-alpha treatment. Thus, type I interferon receptor (IFNAR) signaling may be required for the APOBEC3/Rfv3 response. RESULTS: To test if the APOBEC3/Rfv3 response is dependent on type I IFN signaling, we infected IFNAR knockout versus IFNAR/APOBEC3 double-knockout mice with FV/LDV or LDV-free FV, and evaluated acute FV infection and subsequent NAb titers...
April 17, 2017: Retrovirology
https://www.readbyqxmd.com/read/28415933/incidence-risk-factors-and-the-effect-of-polyomavirus-infection-in-hematopoietic-stem-cell-transplant-recipients
#17
Jianhua Hu, Siying Li, Meifang Yang, Lichen Xu, Xuan Zhang, Hong Zhao, Huihui Dong, Yaping Huang, Jun Fan, Lanjuan Li
Objective The effect of polyomavirus infection in HSCT recipients is poorly understood. Methods We evaluated 38 HSCT recipients. Polyomavirus was detected by nested qualitative polymerase chain reaction (PCR) assays of urine. The risk factors for BK virus and JC virus were analysed. The kidney and liver functions of infected and uninfected patients were compared. Results BK virus, JC virus, and simian virus 40 were detected in 21%, 42%, and 0% of HSCT recipients respectively. HCMV infection was found to be an independent risk factor for JC virus infection (odds ratio (OR): 8...
April 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28415759/kshv-co-infection-down-regulates-hpv16-e6-and-e7-from-cervical-cancer-cells
#18
Lu Dai, Yueyu Cao, Wei Jiang, Jovanny Zabaleta, Zhongmin Liu, Jing Qiao, Zhiqiang Qin
High-risk human papillomavirus (HPV) infection is the etiological agent of some malignancies such as cervical, oral and oropharyngeal cancers. Kaposi sarcoma-associated herpesvirus (KSHV) represents a principal causative agent of several human cancers arising in those immunocompromised patients. Interestingly, KSHV DNA has been detected in the oral cavity and the female genital tract, although its detection rate in cervical samples is very low and few reports are about KSHV/HPV co-infection. Therefore, it remains unclear about the role of KSHV co-infection in the development of HPV-related neoplasias...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28413168/prevalence-of-hiv-hbv-and-hcv-and-related-risk-factors-amongst-male-homeless-people-in-lorestan-province-the-west-of-iran
#19
Amin Doosti-Irani, Hamid Mokhaeri, Ali Chegini Sharafi, Mohammad Reza Aghasadeghi, Morteza Hajimiragha, Mohammad Saki, Mohammad Hassan Kayedi, Ehsan Mostafavi
BACKGROUND: Homeless people are at a higher risk of blood-born infectious diseases. The aim of this study was to estimate the prevalence of HIV, HBV, HCV and related risk factors among male homeless people. STUDY DESIGN: A cross-sectional study. METHODS: This study was conducted in Khorramabad City, western Iran from January to June 2015. A pre-designed validated questionnaire was used to collect the data on behavioral and other potential risk factors...
March 11, 2017: Journal of Research in Health Sciences
https://www.readbyqxmd.com/read/28412935/fitness-costs-of-symbiont-switching-using-entomopathogenic-nematodes-as-a-model
#20
John G McMullen, Brittany F Peterson, Steven Forst, Heidi Goodrich Blair, S Patricia Stock
BACKGROUND: Steinernematid nematodes form obligate symbioses with bacteria from the genus Xenorhabdus. Together Steinernema nematodes and their bacterial symbionts successfully infect, kill, utilize, and exit their insect hosts. During this process the nematodes and bacteria disassociate requiring them to re-associate before emerging from the host. This interaction can be complicated when two different nematodes co-infect an insect host. RESULTS: Non-cognate nematode-bacteria pairings result in reductions for multiple measures of success, including total progeny production and virulence...
April 17, 2017: BMC Evolutionary Biology
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