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https://www.readbyqxmd.com/read/28820886/circulating-mirnas-in-sepsis-a-network-under-attack-an-in-silico-prediction-of-the-potential-existence-of-mirna-sponges-in-sepsis
#1
Catalin Vasilescu, Mihnea Dragomir, Mihai Tanase, Dana Giza, Raluca Purnichescu-Purtan, Meng Chen, Sai-Ching Jim Yeung, George A Calin
Biomarkers based on the molecular mechanism of sepsis are important for timely diagnosis and treatment. A large panel of small non-coding microRNAs was reported to modulate the immune response in sepsis but have not been tested in clinical practice. Large-scale identification of microRNA networks in sepsis might reveal a new biological mechanism that can be also targeted by gene therapy. Therefore, the main objective of this study is to perform a comparison of the miRNA network between septic patients and healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28820885/diagnostic-efficacy-of-noninvasive-liver-fibrosis-indexes-in-predicting-portal-hypertension-in-patients-with-cirrhosis
#2
Le Wang, Yuemin Feng, Xiaowen Ma, Guangchuan Wang, Hao Wu, Xiaoyu Xie, Chunqing Zhang, Qiang Zhu
BACKGROUND: Recent data suggest that noninvasive liver fibrosis indexes could be useful for predicting esophageal varices (EV) in cirrhotic patients. However, thus far, the diagnostic efficacy of these indexes in predicting portal hypertension (PH) in cirrhotic patients has been poorly evaluated. AIMS: To evaluate the diagnostic efficacy of noninvasive liver fibrosis indexes in the diagnosis of PH. METHODS: A total of 238 cirrhotic patients underwent hepatic venous pressure gradient (HVPG) evaluation and relevant serum tests to analyze the variables associated with PH grade...
2017: PloS One
https://www.readbyqxmd.com/read/28820881/vector-competence-of-populations-of-aedes-aegypti-from-three-distinct-cities-in-kenya-for-chikungunya-virus
#3
Sheila B Agha, Edith Chepkorir, Francis Mulwa, Caroline Tigoi, Samwel Arum, Milehna M Guarido, Peris Ambala, Betty Chelangat, Joel Lutomiah, David P Tchouassi, Michael J Turell, Rosemary Sang
BACKGROUND: In April, 2004, chikungunya virus (CHIKV) re-emerged in Kenya and eventually spread to the islands in the Indian Ocean basin, South-East Asia, and the Americas. The virus, which is often associated with high levels of viremia in humans, is mostly transmitted by the urban vector, Aedes aegypti. The expansion of CHIKV presents a public health challenge both locally and internationally. In this study, we investigated the ability of Ae. aegypti mosquitoes from three distinct cities in Kenya; Mombasa (outbreak prone), Kisumu, and Nairobi (no documented outbreak) to transmit CHIKV...
August 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28820758/lack-of-association-between-interleukin-28b-polymorphism-and-vertical-transmission-of-hepatitis-c
#4
Afrodite Psaros Einberg, Ann-Sofi Duberg, Olga Filipovich, Jessica Nyström, Anton Zhirkov, Erwin Daniel Brenndörfer, Lars Frelin, Elena Rukoiatkina, Yuriy Lobzin, Matti Sällberg, Björn Fischler, Anton Lutckii
OBJECTIVES: Single genetic nucleotide polymorphism (rs12979860) near the gene for Interleukin 28B (IL28B), is known to be of importance for frequency of spontaneous clearance and treatment outcome in interferon based therapies in patients with hepatitis C virus (HCV) infection. The aim of this study was to investigate if IL28B polymorphism in children and/or their mothers plays a role in vertical transmission of HCV (HCV-VT). METHODS: Plasma samples from 59 infected women, 76 uninfected children born to infected mothers, and 47 children with known vertically transmitted HCV infection, were analysed for IL28B polymorphism and classified by the IL28B genotype (C/C, C/T and T/T) as well as by viral genotype...
August 17, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28820725/understanding-hepatitis-c-virus-drug-resistance-clinical-implications-for-current-and-future-regimens
#5
David L Wyles, Anne F Luetkemeyer
Viral resistance to direct-acting antiviral drugs may impact their effectiveness during treatment of hepatitis C virus (HCV) infection. Most data on HCV drug resistance concern genotypes 1 and 3. The clinical impact of resistance to HCV nonstructural protein 5A (NS5A) inhibitors and a practical approach to indications and methods for resistance testing are discussed.
July 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28820612/the-potential-of-signal-peptide-peptidase-as-a-therapeutic-target-for-hepatitis-c
#6
Kohji Moriishi
Chronic infection with hepatitis C virus (HCV) causes liver steatosis, cirrhosis, metabolic syndrome with inflammation, and eventually leads to hepatocellular carcinoma. HCV core protein is a well-known capsid protein and pathogenic factor related to lipid accumulation, type 2 diabetes mellitus, and carcinogenesis. Cleavage of the C-terminal transmembrane region by signal peptide peptidase (SPP) is required for maturation of the core protein. Areas covered: Herein, this review details the general aspects of the structure, lifecycle, pathogenesis, and maturation of the HCV core protein, the function of SPP, and clinically available direct-acting antivirals (DAAs)...
August 18, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28820498/interference-of-apoptosis-by-hepatitis-b-virus
#7
REVIEW
Shaoli Lin, Yan-Jin Zhang
Hepatitis B virus (HBV) causes liver diseases that have been a consistent problem for human health, leading to more than one million deaths every year worldwide. A large proportion of hepatocellular carcinoma (HCC) cases across the world are closely associated with chronic HBV infection. Apoptosis is a programmed cell death and is frequently altered in cancer development. HBV infection interferes with the apoptosis signaling to promote HCC progression and viral proliferation. The HBV-mediated alteration of apoptosis is achieved via interference with cellular signaling pathways and regulation of epigenetics...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28820495/human-papillomavirus-and-the-dna-damage-response-exploiting-host-repair-pathways-for-viral-replication
#8
REVIEW
Chelsey C Spriggs, Laimonis A Laimins
High-risk human papillomaviruses (HPVs) are the causative agents of cervical and other genital cancers. In addition, HPV infections are associated with the development of many oropharyngeal cancers. HPVs activate and repress a number of host cellular pathways to promote their viral life cycles, including those of the DNA damage response. High-risk HPVs activate the ataxia telangiectasia-mutated (ATM) and ATM and Rad3-related (ATR) DNA damage repair pathways, which are essential for viral replication (particularly differentiation-dependent genome amplification)...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28820470/adaption-of-fmdv-asia-1-to-suspension-culture-cell-resistance-is-overcome-by-virus-capsid-alterations
#9
Veronika Dill, Bernd Hoffmann, Aline Zimmer, Martin Beer, Michael Eschbaumer
Foot-and-mouth disease virus (FMDV) causes a highly contagious disease with catastrophic economic impact for affected countries. BHK21 suspension cells are preferred for the industrial production of FMDV vaccine antigen, but not all virus strains can be successfully propagated in these cells. Serotype Asia-1 is often affected by this phenomenon. In this study, the Asia-1 strain Shamir was used to examine viral, cellular and environmental factors that contribute to resistance to cell culture infection. Cell media composition, pH and ammonium chloride concentration did not affect Asia-1 differently than other serotypes...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28820433/targeting-persistent-human-papillomavirus-infection
#10
REVIEW
Srinidhi Shanmugasundaram, Jianxin You
While the majority of Human papillomavirus (HPV) infections are transient and cleared within a couple of years following exposure, 10-20% of infections persist latently, leading to disease progression and, ultimately, various forms of invasive cancer. Despite the clinical efficiency of recently developed multivalent prophylactic HPV vaccines, these preventive measures are not effective against pre-existing infection. Additionally, considering that the burden associated with HPV is greatest in regions with limited access to preventative vaccination, the development of effective therapies targeting persistent infection remains imperative...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28820323/non-surgical-model-for-alveolar-bone-regeneration-by-bone-morphogenetic-protein-2-7-gene-therapy
#11
Mariko Kawai, Yo-Hei Kataoka, Junya Sonobe, Hiromitsu Yamamoto, Masakazu Inubushi, Takuya Ishimoto, Takayoshi Nakano, Hiroki Maruyama, Jun-Ichi Miyazaki, Toshio Yamamoto, Kazuhisa Bessho, Kiyoshi Ohura
BACKGROUND: Alveolar bone is a critical tissue for tooth retention; however, once alveolar bone is lost, it may not spontaneously regenerate. Currently, bone grafts or artificial bone are commonly used for alveolar bone regeneration therapy. However, these therapies require surgical procedures, which present risks, particularly in aged patients. Therefore, the development of alveolar bone regeneration techniques that do not require surgical procedures is critical. It is well known that stem cells present in the periosteal and periodontal ligament may be induced to differentiate into osteogenic cells...
August 18, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28820183/technique-of-retinal-gene-therapy-delivery-of-viral-vector-into-the-subretinal-space
#12
K Xue, M Groppe, A P Salvetti, R E MacLaren
PurposeSafe and reproducible delivery of gene therapy vector into the subretinal space is essential for successful targeting of the retinal pigment epithelium (RPE) and photoreceptors. The success of surgery is critical for the clinical efficacy of retinal gene therapy. Iatrogenic detachment of the degenerate (often adherent) retina in patients with hereditary retinal degenerations and small volume (eg, 0.1 ml) subretinal injections pose new surgical challenges.MethodsOur subretinal gene therapy technique involved pre-operative planning with optical coherence tomography (OCT) and autofluorescence (AF) imaging, 23 G pars plana vitrectomy, internal limiting membrane staining with Membrane Blue Dual (DORC BV, Zuidland, Netherlands), a two-step subretinal injection using a 41 G Teflon tipped cannula (DORC) first with normal saline to create a parafoveal bleb followed by slow infusion of viral vector via the same self-sealing retinotomy...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820131/norovirus-in-bottled-water-associated-with-gastroenteritis-outbreak-spain-2016
#13
Albert Blanco, Susana Guix, Noemí Fuster, Cristina Fuentes, Rosa Bartolomé, Thais Cornejo, Rosa Maria Pintó, Albert Bosch
In April 2016, an outbreak of gastrointestinal illness (4,136 cases) occurred in Catalonia, Spain. We detected high levels of norovirus genotypes I and II in office water coolers associated with the outbreak. Infectious viral titer estimates were 33-49 genome copies/L for genotype I and 327-660 genome copies/L for genotype II.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28820067/a-comprehensive-review-on-ebola-ebov-virus-future-prospects
#14
Dr Abdru Rauf, Muhammad, Abdur Rauf, Ahsan Khan, Muhammad Rizwan, Seema Patel, Haroon Khan, Adel Mahasneh, Mohammad S Mubarak
Ebola virus (EBOV) was discovered for the first time in 1976. It belongs to the family Filoviridae, which causes hemorrhagic fever that could lead to death in a few days. West Africa faced a major outbreak where symptoms appeared in the form of chills, myalgia, fever, diarrhea, and vomiting, and the disease finally reached a severe state as a result of hemorrhagic complications and failure of multiple organs. EBOV spreads by contact with body fluids of an infected person such as blood, saliva, urine, and seminal fluid, and also spreads by a contact with contaminated surfaces...
August 16, 2017: Infectious Disorders Drug Targets
https://www.readbyqxmd.com/read/28819988/behavior-change-following-hiv-diagnosis-findings-from-a-cohort-of-los-angeles-msm
#15
Pamina M Gorbach, Marjan Javanbakht, Robert K Bolan
The effect of an HIV diagnosis on subsequent behavior of men who have sex with men (MSM) remains unclear. From 2009 to 2012 the NIDA funded Metromates Study enrolled and followed for one year MSM seeking testing for HIV in Los Angeles, assessing those with new HIV diagnoses for acute/recent HIV infection. Behavioral data were collected via Computer-Assisted Self-Interview from 321 men of whom 125 were classified as recently HIV infected, 91 as not recently HIV infected, and 105 as HIV-negative. Differences over time between those with recent HIV infection, not recent HIV infection, and no HIV were evaluated using bivariate and multivariable analyses for repeat measures to assess associations between HIV group, behaviors and condomless receptive (CRAI), intersertive (CIAI), or any condomless anal intercourse (CAI)...
August 18, 2017: AIDS Care
https://www.readbyqxmd.com/read/28819973/mobile-platform-for-multiplexed-detection-and-differentiation-of-disease-specific-nucleic-acid-sequences-using-microfluidic-loop-mediated-isothermal-amplification-and-smartphone-detection
#16
Weili Chen, Hojeong Yu, Fu Sun, Akid Ornob, Ryan Brisbin, Anurup Ganguli, Vinay Kumar Vemuri, Piotr Strzebonski, Guangzhe Cui, Karen J Allen, Smit A Desai, Weiran Lin, David M Nash, David Hirschberg, Ian Brooks, Rashid Bashir, Brian T Cunningham
New tools are needed to enable rapid detection, identification, and reporting of infectious viral and microbial pathogens in a wide variety of point-of-care applications that impact human and animal health. We report the design, construction, and characterization of a platform for multiplexed analysis of disease-specific DNA sequences that utilizes a smartphone camera as the sensor in conjunction with a handheld "cradle" that interfaces the phone with a silicon-based microfluidic chip embedded within a credit card-sized cartridge...
August 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28819692/molecular-characterization-of-atypical-antigenic-variants-of-canine-rabies-virus-reveals-its-reintroduction-by-wildlife-vectors-in-southeastern-mexico
#17
Fabiola Garcés-Ayala, Nidia Aréchiga-Ceballos, Joanna M Ortiz-Alcántara, Elizabeth González-Durán, Sandra I Pérez-Agüeros, Alfonso Méndez-Tenorio, Belem Torres-Longoria, Irma López-Martínez, Lucía Hernández-Rivas, José Alberto Díaz-Quiñonez, José Ernesto Ramírez-González
Rabies is an infectious viral disease that is practically always fatal following the onset of clinical signs. In Mexico, the last case of human rabies transmitted by dogs was reported in 2006 and canine rabies has declined significantly due to vaccination campaigns implemented in the country. Here we report on the molecular characterization of six rabies virus strains found in Yucatan and Chiapas, remarkably, four of them showed an atypical reaction pattern when antigenic characterization with a reduced panel of eight monoclonal antibodies was performed...
August 17, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28819570/hcv-integrated-care-a-randomized-trial-to-increase-treatment-initiation-and-svr-with-direct-acting-antivirals
#18
Erik J Groessl, Lin Liu, Marisa Sklar, Samuel B Ho
BACKGROUND AND AIMS: Psychiatric or substance use disorders are barriers to successful HCV antiviral treatment. In a randomized, controlled trial (RCT), the effects of HCV Integrated Care (IC) for increasing treatment rates and sustained viral response (SVR) were studied with direct acting antivirals (DAA). METHODS: In 2012-13, VA patients, whose screening was positive for depression, PTSD, or substance use (N = 79), were randomized to IC or Usual Care (UC). IC consisted of brief psychological interventions and case management...
2017: International Journal of Hepatology
https://www.readbyqxmd.com/read/28819548/a-random-forest-classifier-for-detecting-rare-variants-in-ngs-data-from-viral-populations
#19
Raunaq Malhotra, Manjari Jha, Mary Poss, Raj Acharya
We propose a random forest classifier for detecting rare variants from sequencing errors in Next Generation Sequencing (NGS) data from viral populations. The method utilizes counts of varying length of k-mers from the reads of a viral population to train a Random forest classifier, called MultiRes, that classifies k-mers as erroneous or rare variants. Our algorithm is rooted in concepts from signal processing and uses a frame-based representation of k-mers. Frames are sets of non-orthogonal basis functions that were traditionally used in signal processing for noise removal...
2017: Computational and Structural Biotechnology Journal
https://www.readbyqxmd.com/read/28819257/cytolytic-dna-vaccine-encoding-lytic-perforin-augments-the-maturation-of-and-antigen-presentation-by-dendritic-cells-in-a-time-dependent-manner
#20
Danushka K Wijesundara, Wenbo Yu, Ben J C Quah, Preethi Eldi, John D Hayball, Kerrilyn R Diener, Ilia Voskoboinik, Eric J Gowans, Branka Grubor-Bauk
The use of cost-effective vaccines capable of inducing robust CD8(+) T cell immunity will contribute significantly towards the elimination of persistent viral infections and cancers worldwide. We have previously reported that a cytolytic DNA vaccine encoding an immunogen and a truncated mouse perforin (PRF) protein significantly augments anti-viral T cell (including CD8(+) T cell) immunity. Thus, the current study investigated whether this vaccine enhances activation of dendritic cells (DCs) resulting in greater priming of CD8(+) T cell immunity...
August 17, 2017: Scientific Reports
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