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https://www.readbyqxmd.com/read/27899638/structure-and-folding-of-the-tetrahymena-telomerase-rna-pseudoknot
#1
Darian D Cash, Juli Feigon
Telomerase maintains telomere length at the ends of linear chromosomes using an integral telomerase RNA (TER) and telomerase reverse transcriptase (TERT). An essential part of TER is the template/pseudoknot domain (t/PK) which includes the template, for adding telomeric repeats, template boundary element (TBE), and pseudoknot, enclosed in a circle by stem 1. The Tetrahymena telomerase holoenzyme catalytic core (p65-TER-TERT) was recently modeled in our 9 Å resolution cryo-electron microscopy map by fitting protein and TER domains, including a solution NMR structure of the Tetrahymena pseudoknot...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27884572/tick-borne-encephalitis-virus-neutralization-by-high-dose-intravenous-immunoglobulin
#2
Jana Elsterova, Martin Palus, Jana Sirmarova, Jan Kopecky, Hans Helmut Niller, Daniel Ruzek
Tick-borne encephalitis (TBE) is a potentially lethal neuroinfection in humans, caused by TBE virus (TBEV). Currently, there are no approved therapeutic agents to treat TBE. Previously, it was suggested that application of high dose intravenous immunoglobulin (IVIG) may pose potentially successful treatment for severe cases of TBE. In this study, we determined the titers of TBEV-neutralizing antibodies in two IVIG lots originating from the same manufacturer, and tested their ability to treat a lethal TBEV-infection in a mouse model...
November 18, 2016: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/27883379/epidemiological-and-clinical-features-of-tick-borne-encephalitis-in-north-western-region-in-belarus
#3
Elena Nikolaevna Krotkova, Innesa Vladimirovna Babaeva, Michail Bogutskiy, Vladimir Maksimovich Tsyrkunov
THE PURPOSE OF THE STUDY: to present epidemiological features and clinical manifestations of TBE in patients residing in Grodno region. MATERIALS AND METHODS: A retrospective analysis of 124 case histories of patients with TBE in “Grodno Regional Infectious Clinical Hospital” in 2010 – 2014. RESULTS: Epidemiological features of tick-borne encephalitis are the prevalence of the transmission mechanism of contamination (57.3%), involvement of residents of Grodno and Grodno region (54...
2016: Przegla̧d Epidemiologiczny
https://www.readbyqxmd.com/read/27882774/usefulness-of-copeptin-as-a-potential-biomarker-in-tbe
#4
Piotr Czupryna, Anna Moniuszko-Malinowska, Adam Garkowski, Justyna Dunaj, Renata Swierzbinska, Sławomir Pancewicz, Joanna Gościk, Maciej Kondrusik, Sambor Grygorczuk, Joanna Zajkowska
OBJECTIVE: The aim of the study was the evaluation of copeptin usefulness for differentiation of hyponatremia in the course of tick-borne encephalitis (TBE) and for being a prognostic marker of the severity of TBE. MATERIALS AND METHODS: 114 patients with TBE were included in the study. The control group consisted of 62 patients diagnosed with viral meningitis. RESULTS: Copeptin concentration did not differ in patients with hyponatremia and normonatremia...
November 24, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/27875810/nonstructural-protein-1-of-tick-borne-encephalitis-virus-induces-oxidative-stress-and-activates-antioxidant-defense-by-the-nrf2-are-pathway
#5
Yulia V Kuzmenko, Olga A Smirnova, Alexander V Ivanov, Elizaveta S Starodubova, Vadim L Karpov
BACKGROUND: Infection with tick-borne encephalitis virus (TBEV) causes pathological changes in the central nervous system. However, the possible redox alterations in the infected cells that can contribute to the virus pathogenicity remain unknown. OBJECTIVE: In the current study we explored the ability of TBEV nonstructural protein 1 (NS1) to induce oxidative stress and activate antioxidant defense via the nuclear factor (erythroid-derived-2)-like 2/antioxidant response element (Nrf2/ARE) pathway...
November 23, 2016: Intervirology
https://www.readbyqxmd.com/read/27815170/antidepressant-effects-of-tbe-31-and-mce-1-the-novel-nrf2-activators-in-an-inflammation-model-of-depression
#6
Wei Yao, Ji-Chun Zhang, Tamaki Ishima, Qian Ren, Chun Yang, Chao Dong, Min Ma, Akira Saito, Tadashi Honda, Kenji Hashimoto
The Nuclear factor (erythroid 2-derived)-like 2 (Nrf2) plays a key role in inflammation which is implicated in the pathophysiology of depression. The Nrf2 activators have antidepressant effects in animal models of depression. The present study was undertaken to examine whether TBE-31 [(±)-(4bS,8aR,10aS)-10a-ethynyl-4b,8,8-trimethyl-3,7-dioxo-3,4b,7,8,8a,9,10,10a-octahydrophenanthrene-2,6-dicarbonitrile] and MCE-1 [(±)-3-ethynyl-3-methyl-6-oxocyclohexa-1,4-dienecarbonitrile], the novel Nrf2 activator, could show antidepressant effects in inflammation model of depression...
November 1, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27779467/travel-related-tick-borne-encephalitis-israel-2006-2014
#7
Eyal Meltzer, Yael Paran, Yaniv Lustig, Shmuel Stienlauf, Miriam Weinberger, Eli Schwartz
During 2006-2014, four tick-borne encephalitis (TBE) cases occurred among Israeli travelers. We calculated TBE incidence at 321.0, 45.0, 13.2, and 7.5 cases/100,000 travelers/year of travel to Sweden, Switzerland, Austria, and Germany, respectively. TBE incidence among travelers to these destinations appears to justify TBE vaccination in accordance with World Health Organization recommendations.
January 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/27772539/cyclic-patterns-in-the-central-european-tick-borne-encephalitis-incidence-series
#8
P Zeman
Tick-borne encephalitis (TBE) is peculiar due to its unstable dynamics with profound inter-annual fluctuations in case numbers - a phenomenon not well understood to date. Possible reasons - apart from variable human contact with TBE foci - include external factors, e.g. climatic forcing, autonomous oscillations of the disease system itself, or a combined action of both. Spectral analysis of TBE data from six regions of central Europe (CE) revealed that the ostensibly chaotic dynamics can be explained in terms of four superposed (quasi-)periodical oscillations: a quasi-biennial, triennial, pentennial, and a decadal cycle...
October 24, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27760051/long-noncoding-rna-tug1-regulates-mitochondrial-bioenergetics-in-diabetic-nephropathy
#9
Jianyin Long, Shawn S Badal, Zengchun Ye, Yin Wang, Bernard A Ayanga, Daniel L Galvan, Nathanael H Green, Benny H Chang, Paul A Overbeek, Farhad R Danesh
The regulatory roles of long noncoding RNAs (lncRNAs) in transcriptional coactivators are still largely unknown. Here, we have shown that the peroxisome proliferator-activated receptor γ (PPARγ) coactivator α (PGC-1α, encoded by Ppargc1a) is functionally regulated by the lncRNA taurine-upregulated gene 1 (Tug1). Further, we have described a role for Tug1 in the regulation of mitochondrial function in podocytes. Using a murine model of diabetic nephropathy (DN), we performed an unbiased RNA-sequencing (RNA-seq) analysis of kidney glomeruli and identified Tug1 as a differentially expressed lncRNA in the diabetic milieu...
November 1, 2016: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27731624/bis-arene-complexes-re-%C3%AE-6-arene-2-as-highly-stable-bioorganometallic-scaffolds
#10
Giuseppe Meola, Henrik Braband, Paul Schmutz, Michael Benz, Bernhard Spingler, Roger Alberto
The synthesis of mono- and difunctionalized [Re(η(6)-C6H5R)(η(6)-C6H6-nRn)](+) (n = 0, 1; R = COOH, Br) complexes starting from [Re(η(6)-benzene)2](+) is described. The lithiation of [Re(η(6)-benzene)2](+) with n-BuLi leads preferentially to the neutral, alkylated product [Re(η(6)-C6H6)(η(5)-C6H6-Bu)] but not to the expected deprotonation of the arene ring. Deprotonation/lithiation with LDA gave the mono- and the dilithiated products in situ. Their reactions with 1,1,2,2-tetra-bromoethane (TBE) or with CO2, respectively, gave [Re(η(6)-C6H5Br)(η(6)-C6H6)](+), [Re(η(6)-C6H5Br)2](+), or [Re(η(6)-C6H5COOH)(η(6)-C6H6)](+), [Re(η(6)-C6H5COOH)2](+)...
October 12, 2016: Inorganic Chemistry
https://www.readbyqxmd.com/read/27717318/recombinant-domains-iii-of-tick-borne-encephalitis-virus-envelope-protein-in-combination-with-dextran-and-cpgs-induce-immune-response-and-partial-protectiveness-against-tbe-virus-infection-in-mice
#11
Anna S Ershova, Olga A Gra, Alexander M Lyaschuk, Tatyana M Grunina, Artem P Tkachuk, Mikhail S Bartov, Darya M Savina, Olga V Sergienko, Zoya M Galushkina, Vladimir P Gudov, Liubov I Kozlovskaya, Ivan S Kholodilov, Larissa V Gmyl, Galina G Karganova, Vladimir G Lunin, Anna S Karyagina, Alexander L Gintsburg
BACKGROUND: E protein of tick-borne encephalitis virus (TBEV) and other flaviviruses is located on the surface of the viral particle. Domain III of this protein seems to be a promising component of subunit vaccines for prophylaxis of TBE and kits for diagnostics of TBEV. METHODS: Three variants of recombinant TBEV E protein domain III of European, Siberian and Far Eastern subtypes fused with dextran-binding domain of Leuconostoc citreum KM20 were expressed in E...
October 7, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27715427/tick-borne-encephalitis-what-travellers-should-know-when-visiting-an-endemic-country
#12
Aleš Chrdle, Vaclav Chmelik, Daniel Ruzek
Tick-borne encephalitis (TBE) is an acute febrile illness with neurological manifestations that is prevalent in forested areas of moderate climate in Europe and Asia. TBE virus is transmitted by ticks and rarely by unpasteurized milk and dairy products. The disease burden is attributed mainly to resulting long-term disability, especially in individuals over 50 years of age. Currently, there is no causative treatment, but a very effective vaccination is available with a good safety profile. The vaccination requires three basic doses to be fully effective and regular boosters afterwards...
August 15, 2016: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/27698386/high-resolution-impedance-manometry-metrics-of-the-esophagogastric-junction-for-the-assessment-of-treatment-response-in-achalasia
#13
Dustin A Carlson, Zhiyue Lin, Peter J Kahrilas, Joel Sternbach, Eric S Hungness, Nathaniel J Soper, Michelle Balla, Zoe Listernick, Michael Tye, Katherine Ritter, Jenna Craft, Jody D Ciolino, John E Pandolfino
OBJECTIVES: We aimed to evaluate the value of novel high-resolution impedance manometry (HRIM) metrics, bolus flow time (BFT), and esophagogastric junction (EGJ) contractile integral (CI), as well as EGJ pressure (EGJP) and the integrated relaxation pressure (IRP), as indicators of treatment response in achalasia. METHODS: We prospectively evaluated 75 patients (ages 19-81, 32 female) with achalasia during follow-up after pneumatic dilation or myotomy with Eckardt score (ES), timed-barium esophagram (TBE), and HRIM...
October 4, 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27642148/-tick-borne-encephalitis-in-a-child-in-a-nonendemic-country-a-case-report
#14
M Levy, M-T Abi-Warde, A-C Rameau, S Fafi-Kremer, Y Hansmann, M Fischbach, L Higel
Tick-borne encephalitis (TBE) is an arbovirus induced by tick-borne encephalitis virus (TBEV) transmitted by tick bite. The disease is rare in France (two to three cases per year) but endemic zones extend from Western Europe to the east coast of Asia (10,000-15,000 cases per year). An 8-year-old boy was admitted to our pediatric ward in Strasbourg (France) for febrile headache with diplopia. Four days after a tick bite, he declared a febrile headache together with maculopapular rash on the elbows, knees, and cheeks...
October 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27630977/two-person-technique-of-peroral-endoscopic-myotomy-for-achalasia-with-an-advanced-endoscopist-and-a-thoracic-surgeon-initial-experience
#15
Madhusudhan R Sanaka, Ramprasad Jegadeesan, Prashanthi N Thota, Udayakumar Navaneethan, Rocio Lopez, Sudish C Murthy, Siva Raja
Background and Aims. We initiated peroral endoscopic myotomy (POEM) utilizing a two-person technique with combination of an advanced endoscopist and a thoracic surgeon with complementary skills. Our aim was to determine the feasibility and outcomes in initial 20 patients. Methods. In this observational study, main outcomes measured were therapeutic success in relieving symptoms (Eckardt score < 3), decrease in lower esophageal sphincter (LES) pressures, improvement in emptying on timed barium esophagogram (TBE), and complications...
2016: Canadian Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27629426/health-related-quality-of-life-and-physiological-measurements-in-achalasia
#16
Daniel Ross, Joel Richter, Vic Velanovich
The diagnosis of achalasia is generally made based on patient symptoms, the appearance of the esophagus on endoscopy and barium esophagogram, and esophageal manometry. In addition, timed barium esophagography (TBE) can give useful information on the clearance of liquid barium over a 10 minute period and the passage of a barium tablet. What is unclear is how well these physiological measurements of esophageal function correlate with patient-perceived health-related quality of life. Our aim was to assess whether objective physiological measurements of high-resolution manometry (HRM) and TBE will correlate with quantitative achalasia-related health-related quality of life (HRQoL) measurements...
September 15, 2016: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/27585267/screening-for-functional-non-coding-genetic-variants-using-electrophoretic-mobility-shift-assay-emsa-and-dna-affinity-precipitation-assay-dapa
#17
Daniel E Miller, Zubin H Patel, Xiaoming Lu, Arthur T Lynch, Matthew T Weirauch, Leah C Kottyan
Population and family-based genetic studies typically result in the identification of genetic variants that are statistically associated with a clinical disease or phenotype. For many diseases and traits, most variants are non-coding, and are thus likely to act by impacting subtle, comparatively hard to predict mechanisms controlling gene expression. Here, we describe a general strategic approach to prioritize non-coding variants, and screen them for their function. This approach involves computational prioritization using functional genomic databases followed by experimental analysis of differential binding of transcription factors (TFs) to risk and non-risk alleles...
August 21, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27548964/-impacts-of-sediment-disturbance-on-the-distribution-of-suspended-particle-size-and-phosphorus
#18
Jun-rui Guo, Da-peng Li, Yan-jian Liu
To clarify the influence of the sediments disturbance on the particle size distribution of suspended solids, and the influence of particle distribution on the forms of dissolved phosphorous in the overlaying water, the sediments and overlying water from Meiliang Bay, Taihu Lake, were used to conduct the indoor simulation experiments to investigate the particle size of suspended solids according to the Ubbelobde particle size criteria and the distribution of phosphorus compounds in the overlying water under the disturbance circumstances...
April 15, 2016: Huan Jing Ke Xue= Huanjing Kexue
https://www.readbyqxmd.com/read/27478792/spices-mixture-containing-garlic-ginger-and-nutmeg-has-protective-effects-on-the-kidneys-and-liver-of-cadmium-exposed-rats
#19
Emmanuel Ike Ugwuja, Omotayo O Erejuwa, Nicholas C Ugwu
PURPOSE: To determine the potential protective effect of spice mixture containing garlic, ginger and nutmeg on the liver and kidney of cadmium exposed rats. METHODS: Male albino rats (n=30) weighing 120 - 180 g, grouped into five (1-5) of 6 rats/group were studied. Group 1 (NC) rats were administered distilled water (1 ml) orally for 4 weeks and served as the negative control while group 2 (PC) rats were administered low dose (LD) cadmium (25 mg/kg body weight) orally for 4 weeks and served as positive control...
June 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/27476046/structure-activity-relationships-of-nucleoside-analogues-for-inhibition-of-tick-borne-encephalitis-virus
#20
Luděk Eyer, Markéta Šmídková, Radim Nencka, Jiří Neča, Tomáš Kastl, Martin Palus, Erik De Clercq, Daniel Růžek
Tick-borne encephalitis (TBE) represents one of the most serious arboviral neuro-infections in Europe and northern Asia. As no specific antiviral therapy is available at present, there is an urgent need for efficient drugs to treat patients with TBE virus (TBEV) infection. Using two standardised in vitro assay systems, we evaluated a series of 29 nucleoside derivatives for their ability to inhibit TBEV replication in cell lines of neuronal as well as extraneural origin. The series of tested compounds included 2'-C- or 2'-O-methyl substituted nucleosides, 2'-C-fluoro-2'-C-methyl substituted nucleosides, 3'-O-methyl substituted nucleosides, 3'-deoxynucleosides, derivatives with 4'-C-azido substitution, heterobase modified nucleosides and neplanocins...
September 2016: Antiviral Research
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