keyword
MENU ▼
Read by QxMD icon Read
search

Nonstructural

keyword
https://www.readbyqxmd.com/read/29792020/daclatasvir-and-asunaprevir-combination-therapy-for-patients-with-chronic-hepatitis-c-virus-genotype-1b-infection-in-real-world
#1
Jae Young Oh, Byung Seok Kim, Chang Hyeong Lee, Jeong Eun Song, Heon Ju Lee, Jung Gil Park, Jae Seok Hwang, Woo Jin Chung, Byoung Kuk Jang, Young Oh Kweon, Won Young Tak, Soo Young Park, Se Young Jang, Jeong Ill Suh, Sang Gyu Kwak
Background/Aims: Previous studies have reported a high rate of sustained virologic response (SVR) and a low rate of serious adverse events with the use of daclatasvir (DCV) and asunaprevir (ASV) combination therapy. We evaluated the efficacy and safety of DCV and ASV combination therapy for patients with chronic hepatitis C virus (HCV) genotype 1b infection in real world. Methods: We enrolled 278 patients (184 treatment-naïve patients) from five hospitals in Daegu and Gyeongsangbuk-do...
May 25, 2018: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29782916/identification-of-amino-acid-residues-in-infectious-hematopoietic-necrosis-virus-ihnv-nv-protein-necessary-for-viral-replication-and-pathogenicity
#2
Yang Wu, Li Wang, Tiantian Guo, Yanping Jiang, Xinyuan Qiao, Li Sun, Min Liu, Lijie Tang, Yigang Xu, Yijing Li
Our previous studies demonstrated that the nonstructural NV protein of infectious hematopoietic necrosis virus (IHNV) was essential for efficient viral replication and pathogenicity, and that the amino acid residues 32 EGDL35 of the NV protein were responsible for nuclear localization, and played important roles in suppressing IFN and inhibiting NF-κB activity. However, little is known about the influence of 32 EGDL35 on IHNV replication and pathogenicity. In the present study, two recombinant IHNV strains with deletions of NV 32 EGDL35 were generated and the effect on IHNV replication and pathogenicity was explored...
May 18, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29782238/generation-of-a-lineage-ii-powassan-virus-deer-tick-virus-cdna-clone-assessment-of-flaviviral-genetic-determinants-of-tick-and-mosquito-vector-competence
#3
Joan L Kenney, Michael Anishchenko, Meghan Hermance, Hannah Romo, Ching-I Chen, Saravanan Thangamani, Aaron C Brault
The Flavivirus genus comprises a diverse group of viruses that utilize a wide range of vertebrate hosts and arthropod vectors. The genus includes viruses that are transmitted solely by mosquitoes or vertebrate hosts as well as viruses that alternate transmission between mosquitoes or ticks and vertebrates. Nevertheless, the viral genetic determinants that dictate these unique flaviviral host and vector specificities have been poorly characterized. In this report, a cDNA clone of a flavivirus that is transmitted between ticks and vertebrates (Powassan lineage II, deer tick virus [DTV]) was generated and chimeric viruses between the mosquito/vertebrate flavivirus, West Nile virus (WNV), were constructed...
May 21, 2018: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/29774829/novel-parvovirus-related-to-primate-bufaviruses-in-dogs
#4
Vito Martella, Gianvito Lanave, Eszter Mihalov-Kovács, Szilvia Marton, Renáta Varga-Kugler, Eszter Kaszab, Barbara Di Martino, Michele Camero, Nicola Decaro, Canio Buonavoglia, Krisztián Bányai
A novel protoparvovirus species, related genetically to human bufaviruses, was identified in dogs with respiratory signs. The canine bufavirus was distantly related to the well-known canine protoparvovirus, canine parvovirus type 2, sharing low amino acid identities in the nonstructural protein 1 (40.6%) and in the capsid protein 1 (33.4%). By screening collections of fecal, nasal, and oropharyngeal samples obtained from juvenile dogs (<1 year of age), canine bufavirus DNA appeared as a common component of canine virome...
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29770969/homeostatic-levels-of-nonstructural-carbohydrates-after-13-yr-of-drought-and-irrigation-in-pinus-sylvestris
#5
Leonie Schönbeck, Arthur Gessler, Günter Hoch, Nate G McDowell, Andreas Rigling, Marcus Schaub, Mai-He Li
Nonstructural carbohydrates (NSCs) are important for the growth and survival of trees. Drought may lead to a decrease in tree growth and to NSC depletion, whereas increased soil moisture in otherwise dry ecosystems may increase growth and NSC concentrations. A long-term (13 yr) irrigation experiment was conducted in a Pinus sylvestris-dominated forest located at the dry margin of the species in southern Switzerland. We measured the relative leaf area, growth, NSCs, needle δ13 C, [N] and [P] in trees on control and irrigated plots...
May 17, 2018: New Phytologist
https://www.readbyqxmd.com/read/29770590/genomic-and-antigenic-characterization-of-porcine-epidemic-diarrhoea-virus-strains-isolated-from-south-korea-2017
#6
Sunhee Lee, Changhee Lee
Porcine epidemic diarrhoea virus (PEDV) is a globally emerging and re-emerging enteric coronavirus in pigs causing serious economic threats to the world swine industry. Since the re-emergence of massive PEDV outbreaks in South Korea in 2013-2014, domestic pig farms have continued to experience PED epidemics or endemics. This study represents the molecular characterization of PEDV isolates identified in diarrhoeic animals collected across the country in 2017. Initial sequencing analysis of the full-length S genes revealed that 70% of the 2017 isolates (7/10) belong to the G2b subgroup, while the remaining isolates were classified as G1b...
May 16, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29769334/reovirus-nonstructural-protein-%C3%AF-ns-acts-as-an-rna-stability-factor-promoting-viral-genome-replication
#7
Paula F Zamora, Liya Hu, Jonathan J Knowlton, Roni M Lahr, Rodolfo A Moreno, Andrea J Berman, B V Venkataram Prasad, Terence S Dermody
Viral nonstructural proteins, which are not packaged into virions, are essential for replication of most viruses. Reovirus, a nonenveloped, double-stranded RNA (dsRNA) virus, encodes three nonstructural proteins that are required for viral replication and dissemination in the host. Reovirus nonstructural protein σNS is a single-stranded RNA (ssRNA)-binding protein that must be expressed in infected cells for production of viral progeny. However, activities of σNS during individual steps of the reovirus replication cycle are poorly understood...
May 16, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29767683/large-outbreak-of-hepatitis-c-virus-associated-with-drug-diversion-by-a-healthcare-technician
#8
Sharon Alroy-Preis, Elizabeth R Daly, Christine Adamski, Jodie Dionne-Odom, Elizabeth A Talbot, Fengxiang Gao, Steffany J Cavallo, Katrina Hansen, Jennifer C Mahoney, Erin Metcalf, Carol Loring, Christine Bean, Jan Drobeniuc, Guo-Liang Xia, Saleem Kamili, José T Montero
Background: In May 2012, the New Hampshire (NH) Division of Public Health Services (DPHS) was notified of 4 persons with newly diagnosed hepatitis C virus (HCV) infection at hospital X. Initial investigation suggested a common link to the hospital cardiac catheterization laboratory (CCL) because the infected persons included 3 CCL patients and a CCL technician. NH DPHS initiated an investigation to determine the source and control the outbreak. Methods: NH DPHS conducted site visits, case patient and employee interviews, medical record and medication use review, and employee and patient HCV testing using enzyme immunoassay for anti-HCV, reverse-transcription polymerase chain reaction for HCV RNA, nonstructural 5B (NS5B) and hypervariable region 1 (HVR1) sequencing, and quasispecies analysis...
May 14, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29765037/novel-triple-reassortant-influenza-viruses-in-pigs-guangxi-china
#9
Ping He, Guojun Wang, Yanning Mo, Qingxiong Yu, Xiong Xiao, Wenjuan Yang, Weifeng Zhao, Xuan Guo, Qiong Chen, Jianqiao He, Mingli Liang, Jian Zhu, Yangbao Ding, Zuzhang Wei, Kang Ouyang, Fang Liu, Hui Jian, Weijian Huang, Adolfo García-Sastre, Ying Chen
Considered a "mixing vessel" for influenza viruses, pigs can give rise to new influenza virus reassortants that can threaten humans. During our surveillance of pigs in Guangxi, China from 2013 to 2015, we isolated 11 H1N1 and three H3N2 influenza A viruses of swine origin (IAVs-S). Out of the 14, we detected ten novel triple-reassortant viruses, which contained surface genes (hemagglutinin and neuraminidase) from Eurasian avian-like (EA) H1N1 or seasonal human-like H3N2, matrix (M) genes from H1N1/2009 pandemic or EA H1N1, nonstructural (NS) genes from classical swine, and the remaining genes from H1N1/2009 pandemic...
May 16, 2018: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/29761433/quantification-of-soluble-sugars-and-sugar-alcohols-by-lc-ms-ms
#10
Regina Feil, John Edward Lunn
Sugars are simple carbohydrates composed primarily of carbon, hydrogen, and oxygen. They play a central role in metabolism as sources of energy and as building blocks for synthesis of structural and nonstructural polymers. Many different techniques have been used to measure sugars, including refractometry, colorimetric and enzymatic assays, gas chromatography, high-performance liquid chromatography, and nuclear magnetic resonance spectroscopy. In this chapter we describe a method that combines an initial separation of sugars by high-performance anion-exchange chromatography (HPAEC) with detection and quantification by tandem mass spectrometry (MS/MS)...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29760190/tick-borne-encephalitis-virus-nonstructural-protein-ns5-induces-rantes-expression-dependent-on-the-rna-dependent-rna-polymerase-activity
#11
Zifeng Zheng, Jieyu Yang, Xuan Jiang, Yalan Liu, Xiaowei Zhang, Mei Li, Mudan Zhang, Ming Fu, Kai Hu, Hanzhong Wang, Min-Hua Luo, Peng Gong, Qinxue Hu
Tick-borne encephalitis virus (TBEV) is one of the flaviviruses that targets the CNS and causes encephalitis in humans. The mechanism of TBEV that causes CNS destruction remains unclear. It has been reported that RANTES-mediated migration of human blood monocytes and T lymphocytes is specifically induced in the brain of mice infected with TBEV, which causes ensuing neuroinflammation and may contribute to brain destruction. However, the viral components responsible for RANTES induction and the underlying mechanisms remain to be fully addressed...
May 14, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29755074/-structural-deterioration-of-a-bovine-pericardial-valve-in-a-tricuspid-position-14-years-postoperatively-report-of-a-case
#12
Kazunori Ota, Koyu Tanaka, Naoki Asano, Shigeyoshi Gon, Masahito Saito, Kazuho Niimi, Hiromichi Inoue, Motohiko Tamura, Yuji Matsumura, Toshihiro Ohata, Hirotsugu Fukuda, Hiroshi Takano
Although nonstructural dysfunction of a bioprosthesis caused by pannus formation or native valve attachment has been well described, structural valve deterioration( SVD) caused by calcification or tear of a bioprosthesis, especially a bovine pericardial valve, is very rare in the tricuspid position. We report a case of redo tricuspid valve surgery for SVD 14 years after tricuspid valve replacement( TVR) using a Carpentier-Edwards Perimount (CEP) pericardial valve. A 71-year-old woman was referred to our hospital because of exertional dyspnea and pre-syncope...
March 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29751248/evaluation-of-glucose-and-insulin-response-to-haylage-diets-with-different-content-of-nonstructural-carbohydrates-in-2-breeds-of-horses
#13
S Lindåse, C Müller, K Nostell, J Bröjer
Information about the effect of nonstructural carbohydrates (NSCs) in forage on the postprandial glucose and insulin response in horses is scarce. This is of interest as postprandial hyperinsulinemia in horses is a risk factor for laminitis. In addition, insulin sensitivity (IS) differs between breeds. The aim was to evaluate the postprandial glucose and insulin response to haylage diets with different NSC content in horses of 2 different breeds and to evaluate the relationship between the postprandial insulin response and measures of IS derived from a frequently sampled intravenous glucose tolerance test (FSIGTT)...
April 9, 2018: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29743360/orsay-%C3%AE-protein-is-required-for-non-lytic-viral-egress
#14
Wang Yuan, Ying Zhou, Yanlin Fan, Yizhi J Tao, Weiwei Zhong
Non-enveloped gastrointestinal viruses such as human rotavirus can exit infected cells from the apical surface without cell lysis. The mechanism of such non-lytic exit is poorly understood. The non-enveloped Orsay virus is an RNA virus infecting the intestine cells of the nematode Caenorhabditis elegans Dye staining results suggested that Orsay exits from the intestine of infected worms in a non-lytic manner. Therefore, the Orsay- C. elegans system provides an excellent in vivo model to study viral exit. The Orsay genome encodes three proteins: RNA-dependent RNA polymerase, capsid protein (CP), and a nonstructural protein δ...
May 9, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29742479/flaviviridae-virus-nonstructural-proteins-5-and-5a-mediate-viral-immune-evasion-and-are-promising-targets-in-drug-development
#15
REVIEW
Shun Chen, Chao Yang, Wei Zhang, Suresh Mahalingam, Mingshu Wang, Anchun Cheng
Infections with viruses in the Flaviviridae family have a vast global and economic impact because of the high morbidity and mortality. The pathogenesis of Flaviviridae infections is very complex and not fully understood because these viruses can inhibit multiple immune pathways including the complement system, NK cells, and IFN induction and signalling pathways. The non-structural (NS) 5 and 5A proteins of Flaviviridae viruses are highly conserved and play an important role in resisting host immunity through various evasion mechanisms...
May 6, 2018: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/29730006/crystal-structure-of-chikungunya-virus-nsp2-cysteine-protease-reveals-a-putative-flexible-loop-blocking-its-active-site
#16
Manju Narwal, Harvijay Singh, Shivendra Pratap, Anjali Malik, Richard J Kuhn, Pravindra Kumar, Shailly Tomar
Chikungunya virus (CHIKV), a mosquito-borne pathogenic alphavirus is a growing public health threat. No vaccines or antiviral drug is currently available in the market for chikungunya treatment. nsP2pro, the viral cysteine protease, carries out an essential function of nonstructural polyprotein processing and forms four nonstructural proteins (nsPs) that makes the replication complex, hence constitute a promising drug target. In this study, crystal structure of nsP2pro has been determined at 2.59 Ǻ, which reveals that the protein consists of two subdomains: N-terminal protease subdomain and C-terminal methyltransferase subdomain...
May 3, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29725417/identification-and-functional-analysis-of-a-core-gene-module-associated-with-hepatitis-c-virus-induced-human-hepatocellular-carcinoma-progression
#17
Gaobo Bai, Wenling Zheng, Wenli Ma
Hepatitis C virus (HCV)-induced human hepatocellular carcinoma (HCC) progression may be due to a complex multi-step processes. The developmental mechanism of these processes is worth investigating for the prevention, diagnosis and therapy of HCC. The aim of the present study was to investigate the molecular mechanism underlying the progression of HCV-induced hepatocarcinogenesis. First, the dynamic gene module, consisting of key genes associated with progression between the normal stage and HCC, was identified using the Weighted Gene Co-expression Network Analysis tool from R language...
May 2018: Oncology Letters
https://www.readbyqxmd.com/read/29722218/-non-structural-carbohydrates-characteristics-of-different-forest-layers-in-monsoon-broad-leaved-evergreen-forest-in-pu-er-yunnan-province-china
#18
Wan de Liu, Jian Rong Su, Shuai Feng Li, Chong Hua Xui, Xue Dong Tang, Xiao Bo Huang, Hua Zhong
Based on cluster analysis of species vertical stratification, the variations in concentration, allocation and seasonal dynamics of non-structural carbohydrates were investigated in a monsoon broad-leaved evergreen forest in Pu'er, Yunnan Province. The results showed that the concentrations of soluble sugar (3.9%) and nonstructural carbohydrates (NSC, 13.3%) were the highest in the sub-canopy. In contrast, the sugar/starch (0.76) of understory was the lowest. There was no significant difference in starch content among three forest layers...
March 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29722210/-effects-of-soil-warming-on-specific-respiration-rate-and-non-structural-carbohydrate-concentration-in-fine-roots-of-chinese-fir-seedlings
#19
Tao Tao Song, Guang Shui Chen, Shun Zeng Shi, Run Quan Guo, Xin Zheng, De Cheng Xiong, Wang Yuan Chen, Ting Ting Chen
A field mesocosm experiment with Chinese fir (Cunninghamia lanceolata) seedlings was conducted in Chenda State-Owned Forest Farm, Sanming, Fujian Province. The effects of soil warming (ambient +5 ℃) on specific respiration rates and nonstructural carbohydrate (NSC) concentrations in fine roots were measured by the ingrowth core method, to reveal the belowground responses and the adaptability of Chinese fir to global warming. The results showed that soil warming caused significant changes of fine root NSC in the second year...
March 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29719060/phylogenetic-analysis-of-human-g9p-8-rotavirus-strains-circulating-in-jiangsu-china-between-2010-and-2016
#20
Cheng Xu, Jianguang Fu, Jing Ai, Jun Zhang, Cheng Liu, Xiang Huo, Changjun Bao, Yefei Zhu
Rotavirus A (RVA) is the leading cause of acute viral gastroenteritis in children under 5 years of age worldwide. G9P[8] is a common RVA genotype that has been persistently prevalent in Jiangsu, China. To determine the genetic diversity of G9P[8] RVAs, seven representative G9P[8] strains collected from Suzhou Children's Hospital between 2010 and 2016 (named JS2010-JS2016) were analyzed through whole-genome sequencing. All evaluated strains showed the Wa-like constellation G9-P[8]-I1-R1-C1-M1-A1-N1-T1-E1-H1...
May 2, 2018: Journal of Medical Virology
keyword
keyword
107471
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"