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https://www.readbyqxmd.com/read/29341876/probing-and-characterizing-the-high-specific-sequences-of-ssdna-aptamer-against-sgiv-infected-cells
#1
Pengfei Li, Qing Yu, Lingli Zhou, Dexin Dong, Shina Wei, Hanzheng Ya, Bo Chen, Qiwei Qin
As the major viral pathogen of grouper aquaculture, Singapore grouper iridovirus (SGIV) has caused great economic losses in China and Southeast Asia. In the previous study, we have generated highly specific ssDNA aptamers against SGIV-infected grouper spleen cells (GS) by Systematic Evolution of Ligands by Exponential Enrichment technology (SELEX), in which Q2 had the highest binding affinity of 16.43 nM. In this study, we would try to identify the specific sequences in the aptamer Q2 that exhibited the high binding affinity to SGIV-infected cells by truncating the original Q2 into some different specific segments...
January 13, 2018: Virus Research
https://www.readbyqxmd.com/read/29317320/molecular-cloning-characterization-and-expression-analysis-of-the-three-cysteine-and-glycine-rich-protein-genes-in-the-chinese-fire-bellied-newt-cynops-orientalis
#2
Yalong Feng, Juantao Feng, Hanxue Zheng, Wenjun Wang, Fulin Chen, Yuan Yu, Jihong Cui
The cysteine- and glycine-rich protein (CRP) family members, including the cysteine- and glycine-rich protein 1 (CSRP1), cysteine- and glycine-rich protein 2 (CSRP2), and the cysteine- and glycine-rich protein 3 (CSRP3), have exhibited various cellular functions during cell development and differentiation. However, the sequences of the three CSRP genes and their functions are still poorly understood in newts. In this study, we cloned the complete open reading frame (ORF) sequences of the three CSRP genes from the Chinese fire-bellied newt, Cynops orientalis (C...
January 6, 2018: Gene
https://www.readbyqxmd.com/read/29288009/borrelia-persica-infection-in-rock-hyraxes
#3
Gabriela Kleinerman, Roni King, Yaarit Nachum-Biala, Gad Baneth
Tick-borne relapsing fever (TBRF) is an acute infectious disease caused by arthropod-borne spirochetes of the genus Borrelia and characterized by recurrent episodes of fever. Borrelia persica, the causative agent of this disease in Israel, is transmitted by the argasid tick Ornithodoros tholozani. There is little information about the maintenance and possible vertebrate reservoirs of B. persica in nature, but the tick O. tholozani is known to feed on animals that enter its habitat in caves, rock crevices and shady environments...
December 9, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29250508/quantitative-assessment-of-liver-fibrosis-using-shore-durometer
#4
Young Chul Yoon, Jun Suh Lee, Sang Uk Park, Jung Hyun Kwon, Tae Ho Hong, Dong Goo Kim
Purpose: The purpose of the present study was to investigate whether hardness of liver surface correlated with degree of liver fibrosis, and its association with posthepatectomy liver failure (PHLF). Methods: A shore durometer was used to measure hepatic hardness in 41 patients with hepatocellular carcinoma (HCC) and in 10 patients with normal liver. We investigated how hepatic hardness correlates with various values indicating the degree of liver fibrosis, and how it correlates with PHLF...
December 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29197396/new-laparoscopic-procedure-for-left-sided-pancreatic-cancer-artery-first-approach-laparoscopic-ramps-using-3d-technique
#5
Michihiro Yamamoto, Masazumi Zaima, Hidekazu Yamamoto, Hideki Harada, Junichiro Kawamura, Masahiro Yamada, Tekefumi Yazawa, Junya Kawasoe
BACKGROUND: For left-sided pancreatic ductal adenocarcinoma (PDAC), radical antegrade modular pancreatosplenectomy (RAMPS) is a reasonable surgical approach for tumor-free margin resection and systemic lymph node clearance. In pancreaticoduodenectomy for PDAC, the superior mesenteric artery (SMA)-first approach (or the "artery-first approach") has become the standard procedure. With improvements in laparoscopic instruments and techniques, some surgeons attempted to apply laparoscopic RAMPS (L-RAMPS) for carefully selected patients with left-sided PDAC...
December 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29189403/how-do-different-indices-of-hepatic-enhancement-with-gadoxetic-acid-compare-in-predicting-liver-failure-and-other-major-complications-after-hepatectomy
#6
Andreu F Costa, Amélie Tremblay St-Germain, Mohamed Abdolell, Rory L Smoot, Sean Cleary, Kartik S Jhaveri
OBJECTIVE: The objective of this study was to assess the accuracy of gadoxetic acid hepatic enhancement indices in predicting posthepatectomy liver failure (PHLF) and other major complications (OMCs). METHODS: Sixty-five patients underwent prehepatectomy gadoxetic acid-enhanced magnetic resonance imaging. Enhancement indices were calculated by obtaining regions of interest on magnetic resonance images and segmented volumes of the liver and spleen. Multivariate regression analysis was performed to predict PHLF and OMC as a function of the indices, and areas under the receiver operator characteristic (AUROC) curves were calculated...
November 16, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29146750/trpm7-transient-receptor-potential-melastatin-like-7-channel-kinase-controls-calcium-responses-in-arterial-thrombosis-and-stroke-in-mice
#7
Sanjeev K Gotru, Wenchun Chen, Peter Kraft, Isabelle C Becker, Karen Wolf, Simon Stritt, Susanna Zierler, Heike M Hermanns, Deviyani Rao, Anne-Laure Perraud, Carsten Schmitz, René P Zahedi, Peter J Noy, Michael G Tomlinson, Thomas Dandekar, Masayuki Matsushita, Vladimir Chubanov, Thomas Gudermann, Guido Stoll, Bernhard Nieswandt, Attila Braun
OBJECTIVE: TRPM7 (transient receptor potential melastatin-like 7 channel) is a ubiquitously expressed bifunctional protein comprising a transient receptor potential channel segment linked to a cytosolic α-type serine/threonine protein kinase domain. TRPM7 forms a constitutively active Mg(2+) and Ca(2+) permeable channel, which regulates diverse cellular processes in both healthy and diseased conditions, but the physiological role of TRPM7 kinase remains largely unknown. APPROACH AND RESULTS: Here we show that point mutation in TRPM7 kinase domain deleting the kinase activity in mice (Trpm7(R/R) ) causes a marked signaling defect in platelets...
November 16, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/29143283/evaluation-of-sequential-spect-and-ct-for-targeted-radionuclide-therapy-dosimetry
#8
Tiantian Li, Nien-Yun Wu, Na Song, Greta S P Mok
PURPOSE: In targeted radionuclide therapy (TRT), a prior knowledge of the absorbed dose biodistribution is essential for pre-therapy treatment planning. Previously, we showed that non-rigid organ-by-organ registration in sequential quantitative SPECT images improved dose estimation. This study aims to investigate if sequential CT can further improve TRT dosimetric accuracy. METHODS: We simulated SPECT/CT acquisitions at 1, 12, 24, 72 and 144 h In-111 Zevalin post-injection using an analytical MEGP projector, modeling attenuation, scatter and collimator-detector response...
November 15, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/29120746/segmented-filamentous-bacteria-provoke-lung-autoimmunity-by-inducing-gut-lung-axis-th17-cells-expressing-dual-tcrs
#9
C Pierce Bradley, Fei Teng, Krysta M Felix, Teruyuki Sano, Debdut Naskar, Katharine E Block, Haochu Huang, Kenneth S Knox, Dan R Littman, Hsin-Jung Joyce Wu
Lung complications are a major cause of rheumatoid arthritis-related mortality. Involvement of gut microbiota in lung diseases by the gut-lung axis has been widely observed, but the underlying mechanism remains mostly unknown. Using an autoimmune arthritis model, we show that a constituent of the gut microbiota, segmented filamentous bacteria (SFB), distantly provoke lung pathology. SFB induce autoantibodies in lung during the pre-arthritic phase, and SFB-dependent lung pathology requires the T helper 17 (Th17) responses...
November 8, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/29075646/a-multiorgan-segmentation-model-for-ct-volumes-via-full-convolution-deconvolution-network
#10
Yangzi Yang, Huiyan Jiang, Qingjiao Sun
We propose a model with two-stage process for abdominal segmentation on CT volumes. First, in order to capture the details of organs, a full convolution-deconvolution network (FCN-DecNet) is constructed with multiple new unpooling, deconvolutional, and fusion layers. Then, we optimize the coarse segmentation results of FCN-DecNet by multiscale weights probabilistic atlas (MS-PA), which uses spatial and intensity characteristic of atlases. Our coarse-fine model takes advantage of intersubject variability, spatial location, and gray information of CT volumes to minimize the error of segmentation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29054828/cloning-and-expression-study-of-an-irf4a-gene-and-its-two-transcript-variants-in-turbot-scophthalmus-maximus
#11
Song Li, Guobin Hu, Zhipeng Chen, Lianfei Song, Guanjie Wang, Dahai Liu, Qiuming Liu
Interferon regulatory factor 4 (IRF4) is known to be involved in antiviral response as well as regulation of functional and developmental processes in lymphomyeloid cell lineages in mammals. In this study, the gene of IRF4a and its two transcript variants (named IRF4a1 and -2) were cloned from turbot, Scophthalmus maximus, the tissue distributions and in vivo immune responsive expression patterns of the two transcripts were subsequently examined. The Scophthalmus maximus (Sm)IRF4a gene is 8367 nucleotide (nt) in length, consisting of eight exons and seven introns...
October 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29027697/development-and-validation-of-a-reverse-transcription-quantitative-polymerase-chain-reaction-for-tilapia-lake-virus-detection-in-clinical-samples-and-experimentally-challenged-fish
#12
P Tattiyapong, K Sirikanchana, W Surachetpong
Tilapia lake virus (TiLV) is an emerging pathogen associated with high mortalities of wild and farm-raised tilapia in different countries. In this study, a SYBR green-based reverse transcription quantitative polymerase chain reaction (RT-qPCR) assay targeting segment three of the virus was developed to detect and quantify TiLV in clinical samples and experimentally challenged fish. All 30 field samples with clinical signs and history consistent with TiLV infection were positive for TiLV as detected by the developed RT-qPCR method...
October 13, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28984233/surface-micropattern-reduces-colonization-and-medical-device-associated-infections
#13
Binjie Xu, Qiuhua Wei, M Ryan Mettetal, Jie Han, Lindsey Rau, Jinfeng Tie, Rhea M May, Eric T Pathe, Shravanthi T Reddy, Lauren Sullivan, Albert E Parker, Donald H Maul, Anthony B Brennan, Ethan E Mann
PURPOSE: Surface microtopography offers a promising approach for infection control. The goal of this study was to provide evidence that micropatterned surfaces significantly reduce the potential risk of medical device-associated infections. METHODOLOGY: Micropatterned and smooth surfaces were challenged in vitro against the colonization and transference of two representative bacterial pathogens - Staphylococcus aureus and Pseudomonas aeruginosa. A percutaneous rat model was used to assess the effectiveness of the micropattern against device-associated S...
October 6, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28962659/polysplenia-syndrome-with-duodenal-and-pancreatic-dysplasia-in-a-holstein-calf-a-case-report
#14
Daisuke Kondoh, Tomomi Kawano, Tomoaki Kikuchi, Kaoru Hatate, Kenichi Watanabe, Motoki Sasaki, Norio Yamagishi, Hisashi Inokuma, Nobuo Kitamura
BACKGROUND: Laterality disorders of the abdominal organs include situs inversus totalis that mirrors the arrangements of all internal organs and heterotaxy syndrome (situs ambiguus) in which the thoracic or abdominal organs are abnormally arranged. Heterotaxy is often accompanied by multiple congenital malformations, and it generally comprises asplenia and polysplenia syndromes. To our knowledge, polysplenia syndrome has been reported in only three cattle, and computerized tomographic (CT) images of these animals were not obtained...
September 29, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28938688/drag-reducing-polymers-decrease-hepatic-injury-and-metastases-after-liver-ischemia-reperfusion
#15
Samer Tohme, Marina V Kameneva, Hamza O Yazdani, Vikas Sud, Julie Goswami, Patricia Loughran, Hai Huang, Richard L Simmons, Allan Tsung
INTRODUCTION: Surgery, a crucial therapeutic modality in the treatment of solid tumors, can induce sterile inflammatory processes which can result in metastatic progression. Liver ischemia and reperfusion (I/R) injury, an inevitable consequence of hepatic resection of metastases, has been shown to foster hepatic capture of circulating cancer cells and accelerate metastatic growth. Efforts to reduce these negative consequences have not been thoroughly investigated. Drag reducing polymers (DRPs) are blood-soluble macromolecules that can, in nanomolar concentrations, increase tissue perfusion, decrease vascular resistance and decrease near-wall microvascular concentration of neutrophils and platelets thereby possibly reducing the inflammatory microenvironment...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28936204/modulatory-influence-of-segmented-filamentous-bacteria-on-transcriptomic-response-of-gnotobiotic-mice-exposed-to-tcdd
#16
Robert D Stedtfeld, Benli Chai, Robert B Crawford, Tiffany M Stedtfeld, Maggie R Williams, Shao Xiangwen, Tomomi Kuwahara, James R Cole, Norbert E Kaminski, James M Tiedje, Syed A Hashsham
Environmental toxicants such as 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), an aryl hydrocarbon receptor (AhR), are known to induce host toxicity and structural shifts in the gut microbiota. Key bacterial populations with similar or opposing functional responses to AhR ligand exposure may potentially help regulate expression of genes associated with immune dysfunction. To examine this question and the mechanisms for AhR ligand-induced bacterial shifts, C57BL/6 gnotobiotic mice were colonized with and without segmented filamentous bacteria (SFB) - an immune activator...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28902940/bacterial-translocation-and-mortality-on-rat-model-of-intestinal-ischemia-and-obstruction
#17
Rafael Izar Domingues da Costa, Roberto Rasslan, Marcia Kiyomi Koike, Edivaldo Massazo Utiyama, Edna Frasson de Souza Montero
Purpose: To develop an experimental model of intestinal ischemia and obstruction followed by surgical resection of the damaged segment and reestablishment of intestinal transit, looking at bacterial translocation and survival. Methods: After anesthesia, Wistar rats was subject to laparotomy, intestinal ischemia and obstruction through an ileal ligature 1.5cm of ileum cecal valve; and the mesenteric vessels that irrigate upstream of the obstruction site to approximately 7 to 10 cm were ligated...
August 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28870221/isolation-and-characterization-of-the-fall-chinook-aquareovirus
#18
Negar Makhsous, Nicole L Jensen, Katherine H Haman, William N Batts, Keith R Jerome, James R Winton, Alexander L Greninger
BACKGROUND: Salmon are paramount to the economy, ecology, and history of the Pacific Northwest. Viruses constitute one of the major threats to salmon health and well-being, with more than twenty known virus species that infect salmon. Here, we describe the isolation and characterization of the fall Chinook aquareovirus, a divergent member of the species Aquareovirus B within the family Reoviridae. METHODS: The virus was first found in 2014 as part of a routine adult broodstock screening program in which kidney and spleen tissue samples from healthy-appearing, adult fall Chinook salmon (Oncorhynchus tshawytscha) returning to a hatchery in Washington State produced cytopathic effects when inoculated onto a Chinook salmon embryo cell line (CHSE-214)...
September 5, 2017: Virology Journal
https://www.readbyqxmd.com/read/28843273/fusion-anomaly-of-the-pancreatic-tail-and-spleen-a-case-report
#19
Ahmad Khalid Omeri, Shunro Matsumoto, Maki Kiyonaga, Ryo Takaji, Yasunari Yamada, Yumiko Ando, Hiromu Mori, Hiroki Uchida, Yukio Iwashita, Masayuki Ohta, Masafumi Inomata
BACKGROUND: Splenopancreatic fusion is a rare anomaly that is often associated with trisomy 13. Its diagnosis can be important in patients scheduled to undergo distal pancreatectomy or splenectomy, to avoid possible intraoperative or postoperative complications. CASE PRESENTATION: An 82-year-old Japanese man was referred to our hospital for further evaluation and treatment for a solitary hepatocellular carcinoma based on liver cirrhosis. Triple-phase contrast-enhanced multidetector-row computed tomography and magnetic resonance imaging showed a splenopancreatic fusion as well as a solitary hepatocellular carcinoma in segment VIII of his liver...
August 27, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28742733/intravoxel-incoherent-motion-model-free-determination-of-tissue-type-in-abdominal-organs-using-machine-learning
#20
Alexander Ciritsis, Cristina Rossi, Moritz C Wurnig, Valerie Phi Van, Andreas Boss
PURPOSE: For diffusion data sets including low and high b-values, the intravoxel incoherent motion model is commonly applied to characterize tissue. The aim of the present study was to show that machine learning allows a model-free approach to determine tissue type without a priori assumptions on the underlying physiology. MATERIALS AND METHODS: In 8 healthy volunteers, diffusion data sets were acquired using an echo-planar imaging sequence with 16 b-values in the range between 0 and 1000 s/mm...
July 24, 2017: Investigative Radiology
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