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https://www.readbyqxmd.com/read/28231690/downregulation-of-hur-inhibits-the-progression-of-esophageal-cancer-through-interleukin-18
#1
Xiaohui Xu, Cheng Song, Zhihua Chen, Chenxiao Yu, Yi Wang, Yiting Tang, Judong Luo
Purpose: To investigate the effect of HuR downregulation and the potential target genes of HuR on the progression of esophageal squamous cell carcinoma (ESCC). Materials and Methods: In this study, a proteomics assay was used to detect the expression of proteins after HuR downregulation, and a luciferase assay was used to detect the potential presence of a HuR binding site on the 3'-UTR of IL-18. In addition, colony formation assay, MTT, EdU incorporation assay, Western blot, flow cytometry, immunohistochemistry, transwell invasion assay and wound healing assay were used...
February 24, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28231683/the-adverse-effects-of-exercise-and-supraphysiological-dose-of-testosterone-enanthate-te-on-exploratory-activity-in-elevated-plus-maze-epm-test-indications-for-using-total-exploratory-activity-tea-as-a-new-parameter-for-exploratory-activity-estimation-in-epm
#2
(no author information available yet)
OBJECTIVES: The aim of this study was the estimation of effects induced by chronic administration of supraphysiological dose of TE and prolonged exercise in male rats on anxiety levels (alterations in exploratory activity patterns in EPM). MATERIAL AND METHODS: Two sedentary (control - C and testosterone-enanthate - T) and two exercise (exercise - E and testosterone-enanthate plus exercise - T+E) groups (n=32) underwent adequate protocols - the swimming protocol (1 h/day) and TE (20 mg/kg/w, s...
October 24, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28231561/structural-analysis-of-rebaudioside-a-derivatives-obtained-by-lactobacillus-reuteri-180-glucansucrase-catalyzed-trans-%C3%AE-glucosylation
#3
Gerrit J Gerwig, Evelien M Te Poele, Lubbert Dijkhuizen, Johannis P Kamerling
The wild-type Gtf180-ΔN glucansucrase enzyme from Lactobacillus reuteri 180 was found to catalyze the α-glucosylation of the steviol glycoside rebaudioside A, using sucrose as glucosyl donor in a transglucosylation process. Structural analysis of the formed products by MALDI-TOF mass spectrometry, methylation analysis and NMR spectroscopy showed that rebaudioside A is specifically α-d-glucosylated at the steviol C-19 β-d-glucosyl moiety (55% conversion). The main product is a mono-(α1 → 6)-glucosylated derivative (RebA-G1)...
January 31, 2017: Carbohydrate Research
https://www.readbyqxmd.com/read/28231488/the-value-of-elastpq-for-the-evaluation-of-liver-stiffness-in-patients-with-b-and-c-chronic-hepatopathies
#4
Ruxandra Mare, Ioan Sporea, Raluca Lupuşoru, Roxana Şirli, Alina Popescu, Mirela Danila, Corina Pienar
: The aim of this study was to evaluate the diagnostic performance of a point shear wave elastography using ARFI technique - ElastPQ, in patients with B and C chronic hepatopathies, using Transient Elastography (TE) as the reference method, since it is a validated method for liver fibrosis assessment. SUBJECTS AND METHODS: the study included 228 consecutive subjects with chronic hepatopathies (26% HBV, 74% HCV) from whom 51% had liver cirrhosis. Liver stiffness (LS) was evaluated in the same session by means of 2 elastographic methods: TE (FibroScan, EchoSens) and ElastPQ (Affinity, Philips) techniques...
February 9, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28230980/chitosan-modified-filter-paper-for-nucleic-acid-extraction-and-in-situ-pcr-on-a-thermoplastic-microchip
#5
Wupeng Gan, Yin Gu, Junping Han, Caixia Li, Jing Sun, Peng Liu
Plastic microfluidic devices with embedded chitosan-modified Fusion 5 filter paper (unmodified one purchased from GE Healthcare) have been successfully developed for DNA extraction and concentration, utilizing two different mechanisms for DNA capture: the physical entanglement of long-chain DNA molecules with the fiber matrix of the filter paper and the electrostatic adsorption of DNA to the chitosan-modified filter fibers. This new method not only provided a high DNA extraction efficiency at a pH of 5 by synergistically combining these two capture mechanisms together, but also resisted the elution of DNA from filters at a pH >8 due to the entanglement of DNA with fibers...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28230917/total-laryngectomy-with-primary-tracheoesophageal-puncture-intraoperative-versus-delayed-voice-prosthesis-placement
#6
Rachelle A Robinson, Virginia A Simms, Elizabeth C Ward, Molly K Barnhart, Sophie J Chandler, Robert I Smee
BACKGROUND: Studies support using intraoperative voice prosthesis insertion performed at the time of primary tracheoesophageal puncture (TEP) during laryngectomy. However, none have compared intraoperative voice prosthesis insertion with delayed voice prosthesis insertion. The purpose of this study was to prospectively examine patient, services, and cost benefits of intraoperative versus delayed voice prosthesis placement. METHODS: Voice prosthesis use, duration to the first voice prosthesis change, early communication, and costs were compared between 14 patients who underwent a laryngectomy and who received intraoperative voice prosthesis placement, and 10 patients who underwent initial catheter stenting and then delayed voice prosthesis insertion...
February 23, 2017: Head & Neck
https://www.readbyqxmd.com/read/28230774/inhibition-of-ccar1-a-coactivator-of-%C3%AE-catenin-suppresses-the-proliferation-and-migration-of-gastric-cancer-cells
#7
Te-Sheng Chang, Kuo-Liang Wei, Chung-Kuang Lu, Yi-Hsing Chen, Ying-Tung Cheng, Shui-Yi Tung, Cheng-Shyong Wu, Ming-Ko Chiang
The aberrant activation of Wnt signaling has been implicated in a variety of human cancers, including gastric cancer. Given the current hypothesis that cancer arises from cancer stem cells (CSCs), targeting the critical signaling pathways that support CSC self-renewal appears to be a useful approach for cancer therapy. Cell cycle and apoptosis regulator 1 (CCAR1) is a transcriptional coactivator which has been shown to be a component of Wnt/β-catenin signaling, and which plays an important role in transcriptional regulation by β-catenin...
February 21, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28230609/adolescent-presentation-of-congenital-tracheoesophageal-fistula
#8
Graciela Wetzler, Iris Jo, Keith Breglio, Mikhail Kazachkov
No abstract text is available yet for this article.
March 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28229211/multicenter-international-experience-of-532%C3%A2-nm-laser-photo-vaporization-with-greenlight-xps-in-men-with-large-prostates-prostate-volume%C3%A2-%C3%A2-100%C3%A2-cc
#9
Malek Meskawi, Pierre-Alain Hueber, Roger Valdivieso, Franck Bruyere, Vincent Misrai, Georges Fournier, Ravi Munver, Ganesh Sivarajan, Matthew Rutman, Alexis E Te, Bilal Chughtai, Dean Elterman, Tristan Martel, Mounsif Azizi, Pierre I Karakiewicz, Kevin C Zorn
PURPOSE: To evaluate the outcomes and durability of photoselective vaporization of the prostate (PVP) using the XPS-180 system in patients with a large prostate volume (PV) > 100 cc at 4 years of follow-up in a large, multicenter experience. METHODS: 438 men with pre-operative transrectal ultrasound (TRUS) PV > 100 cc were treated in eight experienced centers in Canada, USA, and in France with the Greenlight XPS laser using PVP for the treatment of symptomatic BPH...
February 22, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28228978/population-and-clinical-genetics-of-human-transposable-elements-in-the-post-genomic-era
#10
REVIEW
Lavanya Rishishwar, Lu Wang, Evan A Clayton, Leonardo Mariño-Ramírez, John F McDonald, I King Jordan
Recent technological developments-in genomics, bioinformatics and high-throughput experimental techniques-are providing opportunities to study ongoing human transposable element (TE) activity at an unprecedented level of detail. It is now possible to characterize genome-wide collections of TE insertion sites for multiple human individuals, within and between populations, and for a variety of tissue types. Comparison of TE insertion site profiles between individuals captures the germline activity of TEs and reveals insertion site variants that segregate as polymorphisms among human populations, whereas comparison among tissue types ascertains somatic TE activity that generates cellular heterogeneity...
2017: Mobile Genetic Elements
https://www.readbyqxmd.com/read/28228849/considerations-and-complications-of-mapping-small-rna-high-throughput-data-to-transposable-elements
#11
Alexandros Bousios, Brandon S Gaut, Nikos Darzentas
BACKGROUND: High-throughput sequencing (HTS) has revolutionized the way in which epigenetic research is conducted. When coupled with fully-sequenced genomes, millions of small RNA (sRNA) reads are mapped to regions of interest and the results scrutinized for clues about epigenetic mechanisms. However, this approach requires careful consideration in regards to experimental design, especially when one investigates repetitive parts of genomes such as transposable elements (TEs), or when such genomes are large, as is often the case in plants...
2017: Mobile DNA
https://www.readbyqxmd.com/read/28228658/high-expression-of-glucose-regulated-protein-78-grp78-is-associated-with-metastasis-and-poor-prognosis-in-patients-with-esophageal-squamous-cell-carcinoma
#12
Peng Ren, Chuangui Chen, Jie Yue, Jianguo Zhang, Zhentao Yu
BACKGROUND: Glucose-regulated protein 78 (GRP78) plays an important role in the invasion and metastasis of many human cancers. However, the role of this protein in the progression of invasion and metastasis in esophageal squamous cell carcinoma (ESCC) remains elusive. PATIENTS AND METHODS: Immunohistochemistry and Western blot were performed to analyze GRP78 expression in 92 patients with primary ESCC. The correlation of GRP78 expression with clinicopathological factors was analyzed...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28228120/findings-of-transoesophageal-echocardiogram-in-appropriately-anticoagulated-patients-with-persistent-atrial-fibrillation-prior-to-planned-cardioversion
#13
Jūratė Barysienė, Aistė Žebrauskaitė, Dovilė Petrikonytė, Germanas Marinskis, Sigita Aidietienė, Audrius Aidietis
BACKGROUND: To evaluate a diagnostic value of transoesophageal echocardiogram (TEE) in appropriately anticoagulated patients with a non-valvular atrial fibrillation (AF) and to establish possible additional indications for TEE; to evaluate the incidence of left atrial (LA) thrombi in appropriately anticoagulated patients in daily clinical practice. METHODS: This retrospective study analyses data of 432 patients who had been anticoagulated by means of oral anticoagulants (OACs) prior to planned cardioversion during the period from 2012 to 2015...
February 23, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28227553/transfer-learning-with-large-scale-data-in-brain-computer-interfaces
#14
Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Chun-Shu Wei, Yuan-Pin Lin, Yu-Te Wang, Chin-Teng Lin, Tzyy-Ping Jung, Yuan-Pin Lin, Yu-Te Wang, Tzyy-Ping Jung, Chin-Teng Lin, Chun-Shu Wei
Human variability in electroencephalogram (EEG) poses significant challenges for developing practical real-world applications of brain-computer interfaces (BCIs). The intuitive solution of collecting sufficient user-specific training/calibration data can be very labor-intensive and time-consuming, hindering the practicability of BCIs. To address this problem, transfer learning (TL), which leverages existing data from other sessions or subjects, has recently been adopted by the BCI community to build a BCI for a new user with limited calibration data...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227520/cross-frequency-information-transfer-from-eeg-to-emg-in-grasping
#15
Winnie K Y So, Lingling Yang, Beth Jelfs, Qi She, Savio W H Wong, Joseph N Mak, Rosa H M Chan, Winnie K Y So, Lingling Yang, Beth Jelfs, Qi She, Savio W H Wong, Joseph N Mak, Rosa H M Chan, Rosa H M Chan, Beth Jelfs, Savio W H Wong, Lingling Yang, Qi She, Joseph N Mak, Winnie K Y So
This paper presents an investigation into the cortico-muscular relationship during a grasping task by evaluating the information transfer between EEG and EMG signals. Information transfer was computed via a non-linear model-free measure, transfer entropy (TE). To examine the cross-frequency interaction, TEs were computed after the times series were decomposed into various frequency ranges via wavelet transform. Our results demonstrate the capability of TE to capture the direct interaction between EEG and EMG...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227129/modeling-of-pharyngoesophageal-segment-during-tracheoesophageal-phonation-in-total-laryngectomy-patients-with-preliminary-validation
#16
Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Teng Zhang, Siwei Bai, Ian Cook, Michal Szczesniak, Julia Maclean, Socrates Dokos, Siwei Bai, Michal Szczesniak, Socrates Dokos, Ian Cook, Julia Maclean, Teng Zhang
For patients with large or recurrent laryngeal cancer, total laryngectomy surgery is usually performed. In the absence of a larynx, tracheoesophageal (TE) voice is the gold standard for alaryngeal phonation. The mechanisms underlying TE voice are unknown, but pharyngoesophageal (PE) segment vibration has been shown to play a key role. The aim of this study was to systematically explore the mechanics of PE segment vibration during TE phonation. A 2D axisymmetric finite-element model with two domains representing the air and PE wall was developed...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226871/identifying-depressed-patients-with-and-without-suicidal-ideation-by-finger-photo-plethysmography
#17
A H Khandoker, V Luthra, Y Abouallaban, S Saha, K I Ahmed, R Mostafa, N Chowdhury, H F Jelinek, A H Khandoker, V Luthra, Y Abouallaban, S Saha, K I Ahmed, R Mostafa, N Chowdhury, H F Jelinek, A H Khandoker, R Mostafa, H F Jelinek, N Chowdhury, Y Abouallaban, S Saha, K I Ahmed, V Luthra
Major Depressive Disorder (MDD) is a serious mental disorder that if untreated not only affects physical health but also has a high risk of suicide. While the neurophysiological phenomena that contribute to the formation of Suicidal Ideation (SI) are still ill-defined, clear links between MDD and cardiovascular disease have been reported. The aim of this study is to extract suitable features from arterial pulse signals with a view to predicting SI within MDD and control groups. Sixteen unmedicated MDD patients with a history of SI (MDDSI+), sixteen without SI (MDDSI-) and twenty-nine healthy subjects (CONT) were recruited at a psychiatric clinic in the UAE...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226534/example-based-super-resolution-for-enhancing-spatial-resolution-of-medical-images
#18
Dai-Viet Tran, Sebastien Li-Thiao-Te, Marie Luong, Thuong Le-Tien, Francoise Dibos, Jean-Marie Rocchisani, Dai-Viet Tran, Sebastien Li-Thiao-Te, Marie Luong, Thuong Le-Tien, Francoise Dibos, Jean-Marie Rocchisani, Sebastien Li-Thiao-Te, Francoise Dibos, Jean-Marie Rocchisani, Marie Luong, Dai-Viet Tran, Thuong Le-Tien
This paper proposes an effective exampled-based super-resolution (SR) method to improve the spatial resolution of medical image heavily corrupted by noise. Based on the sparsity of patches, the reconstruction of a high-resolution (HR) patch from each low-resolution (LR) input patch can be performed with the help of a database, by solving a non-negative sparse optimization problem. The challenge is to effectively solve this problem in case of a large size database. To cope with this issue, we propose a metric to measure the similarity between image patches based on the Earth Mover's Distance (EMD) in order to select only the most similar candidates that will be used in the optimization problem...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226240/position-and-hippo-signaling-dependent-plasticityduring-lineage-segregation-in-the-early-mouse-embryo
#19
Eszter Posfai, Sophie Petropoulos, Flavia Ro de Barros, John Paul Schell, Igor Jurisica, Rickard Sandberg, Fredrik Lanner, Janet Rossant
The segregation of the trophectoderm (TE) from the inner cell mass (ICM) in the mouse blastocyst is determined by position-dependent Hippo signaling. However, the window of responsiveness to Hippo signaling, the exact timing of lineage commitment and the overall relationship between cell commitment and global gene expression changes are still unclear. Single-cell RNA sequencing during lineage segregation revealed that the TE transcriptional profile stabilizes earlier than the ICM and prior to blastocyst formation...
February 22, 2017: ELife
https://www.readbyqxmd.com/read/28225590/quantum-effects-and-phase-tuning-in-epitaxial-hexagonal-and-monoclinic-mote2-monolayers
#20
Jinglei Chen, Guanyong Wang, Yanan Tang, Hao Tian, Jinpeng Xu, Xianqi Dai, Hu Xu, Jinfeng Jia, Wingkin Ho, Maohai Xie
Monolayer (ML) transition-metal dichalcogenides exist in different phases, such as hexagonal (2H) and monoclinic (1T') structures. They show very different properties: semiconducting for 2H-MoTe2 and semi-metallic for 1T'-MoTe2. The formation energy difference between 2H and 1T' phase MoTe2 is small, so there is a high chance to tune the structures of MoTe2 and thereby to bring in applications of phase-change electronics. In this paper, we report growth of both 2H- and 1T'-MoTe2 ML by molecular-beam epitaxy (MBE) and demonstrate its tenability by changing the conditions of MBE...
February 22, 2017: ACS Nano
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