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https://www.readbyqxmd.com/read/28340223/implantation-of-cardiac-resynchronization-therapy-devices-using-three-leads-by-cephalic-vein-dissection-approach
#1
Alexios Hadjis, Riccardo Proietti, Vidal Essebag
Aims: Percutaneous subclavian, axillary, and cephalic vein access are all used in conjunction for atrial and ventricular lead implantation, though no standard approach for cardiac resynchronization therapy (CRT) device implantation has been established. We describe an effective and a safe technique for implanting three leads via cephalic vein for CRT pacemaker and/or defibrillator implantations. Methods and results: A total of 171 consecutive patients undergoing de novo implantation of CRT pacemaker or defibrillator were included...
March 17, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339724/three-cis-regulatory-motifs-auxre-mycrs1-and-mycrs2-are-required-for-modulating-the-auxin-and-mycorrhiza-responsive-expression-of-a-tomato-gh3-gene
#2
Xiao Chen, Dehua Liao, Xiaofeng Yang, Minjie Ji, Shuangshuang Wang, Mian Gu, Aiqun Chen, Guohua Xu
Auxin is well known to be a key regulator that acts in almost all physiological processes during plant growth, and in interactions between plants and microbes. However, to date, the regulatory mechanisms underlying auxin-mediated plant-arbuscular mycorrhizal (AM) fungi symbiosis have not been well deciphered. Previously we identified a GH3 gene, SlGH3.4, strongly responsive to both auxin induction and mycorrhizal symbiosis. Here, we reported a refined dissection of the SlGH3.4 promoter activity using the β-glucuronidase (GUS) reporter...
February 21, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339318/predictors-for-lymph-nodes-involvement-in-low-risk-endometrial-cancer
#3
Yfat Kadan, Abdul Saied Calvino, Andrew Katz, Steven Katz, Richard G Moore
Neutrophil-lymphocyte ratio (NLR) and BMI were examined as pre-operative predictors for lymph node metastases in patients with low-risk endometrial cancer. The study was a retrospective analysis of 534 endometrial cancer patients that underwent hysterectomy and lymph node dissection. Included subjects had a preoperative diagnosis of a grade 1 or 2 endometrioid carcinoma and no macroscopic extrauterine disease. We compared node-negative to node-positive patients to identify correlates of node-positive disease...
March 24, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28339288/the-proximal-tibiofibular-joint-a-biomechanical-analysis-of-the-anterior-and-posterior-ligamentous-complexes
#4
Daniel Cole Marchetti, Gilbert Moatshe, Brian M Phelps, Kimi D Dahl, Marcio Balbinotti Ferrari, Jorge Chahla, Travis Lee Turnbull, Robert F LaPrade
BACKGROUND: Dislocation of the proximal tibiofibular joint is a complex injury that is often overlooked or misdiagnosed. Surgical management is recommended for severe acute or for chronic symptomatic instability of the proximal tibiofibular joint. Although the anterior ligamentous complex has been reported to be stronger than the posterior complex, biomechanical data are lacking. PURPOSE: To determine the ultimate load of the anterior and posterior ligamentous complexes of the proximal tibiofibular joint to determine optimal graft selection...
March 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28335577/gc-ms-metabolomic-analysis-to-reveal-the-metabolites-and-biological-pathways-involved-in-the-developmental-stages-and-tissue-response-of-panax-ginseng
#5
Jia Liu, Yang Liu, Yu Wang, Ann Abozeid, Yuan-Gang Zu, Xiao-Ning Zhang, Zhong-Hua Tang
Ginsenosides, the major compounds present in ginseng, are known to have numerous physiological and pharmacological effects. The physiological processes, enzymes and genes involved in ginsenoside synthesis in P. ginseng have been well characterized. However, relatively little information is known about the dynamic metabolic changes that occur during ginsenoside accumulation in ginseng. To explore this topic, we isolated metabolites from different tissues at different growth stages, and identified and characterized them by using gas chromatography coupled with mass spectrometry (GC-MS)...
March 21, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28335144/endovascular-fenestration-scissors-for-aortic-dissection-experimental-study-and-evaluation-of-clinical-applicability
#6
Jean-Marc Alsac, Salma El Batti, Iannis Benabdallah, Julie Piquet
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335143/aortic-non-covered-stents-to-treat-complicated-acute-type-b-aortic-dissections-lessons-learned-from-seven-years-from-s-o-s-aorta
#7
Jean-Marc Alsac, Salma El Batti, Auréline Boitet, Marwan Abou Rjeili, Pierre Julia
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335140/study-by-numerical-modeling-of-the-hemodynamic-impact-of-the-anatomical-risk-factors-of-type-b-aortic-dissection
#8
Sabrina Ben Ahmed, Desmond Dillon-Murphy, C Alberto Figueroa
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335139/embolization-of-the-false-lumen-in-chronic-aortic-dissections-preliminary-study-about-12-cases
#9
Quentin Pellenc, Arnaud Roussel, Philippe Tresson, Pierre Mordant, Pierre Cerceau, Romain de Blic, Guillaume Jondeau, Yves Castier
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335136/retrospective-analysis-of-type-a-aortic-dissections-after-debranching-of-the-supra-aortic-trunks-and-stentgraft-of-the-aortic-arch-the-side-clamping-of-the-ascending-aorta-is-responsible
#10
Dorian Verscheure, Julien Gaudric, Quentin Pellenc, Arnaud Roussel, Laurent Chiche, Fabien Koskas
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335135/evaluation-of-the-hybrid-treatment-of-the-aortic-arch-for-dissecting-aneurysm
#11
Elsa Faure, Ludovic Canaud, Charles Marty-Ane, Pierre Alric
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335104/1-year-experience-with-acute%C3%A2-aortic-dissection
#12
Sean D O'Donnell
No abstract text is available yet for this article.
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28335100/is-the-reinitiation-of-antiplatelet-agents-safe-at-1-week-after-gastric-endoscopic-submucosal-dissection-assessment-of-bleeding-risk-using-the-forrest-classification
#13
Jong Yeul Lee, Chan Gyoo Kim, Soo-Jeong Cho, Young-Il Kim, Il Ju Choi
Background/Aims: Delayed bleeding after gastric endoscopic submucosal dissection (ESD) commonly occurs within 3 days, but it may also occur after 1 week following ESD, especially in antiplatelet agent users. We evaluated the risk of delayed bleeding in post-ESD ulcers using the Forrest classification. Methods: Registry data on the Forrest classification of post-ESD ulcers (n=371) at 1 week or 2 weeks after ESD were retrospectively evaluated. The Forrest classification was categorized into two groups: increased risk (Forrest Ia to IIc) or low risk (Forrest III)...
March 24, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28335098/endoscopic-submucosal-tunnel-dissection-for-upper-gastrointestinal-submucosal-tumors-originating-from-the-muscularis-propria-layer-a-single-center-study
#14
Xiaowei Tang, Yutang Ren, Silin Huang, Qiaoping Gao, Jieqiong Zhou, Zhengjie Wei, Bo Jiang, Wei Gong
Background/Aims: In recent years, endoscopic submucosal tunnel dissection (ESTD) has gained popularity worldwide. The aim of this study was to evaluate the safety and efficacy of ESTD in treating upper gastrointestinal submucosal tumors (SMTs) in a large-volume endoscopic center. Methods: Patients with SMTs were enrolled in this study between January 2012 and January 2015. Demographic data, clinical data, and treatment outcome were collected and analyzed. Results: Seventy SMTs originating from the muscularis propria (MP) layer were identified in 69 patients...
March 24, 2017: Gut and Liver
https://www.readbyqxmd.com/read/28335018/dissecting-gamma-frequency-activity-during-human-memory-processing
#15
Michal T Kucewicz, Brent M Berry, Vaclav Kremen, Benjamin H Brinkmann, Michael R Sperling, Barbara C Jobst, Robert E Gross, Bradley Lega, Sameer A Sheth, Joel M Stein, Sandthitsu R Das, Richard Gorniak, S Matthew Stead, Daniel S Rizzuto, Michael J Kahana, Gregory A Worrell
Gamma frequency activity (30-150 Hz) is induced in cognitive tasks and is thought to reflect underlying neural processes. Gamma frequency activity can be recorded directly from the human brain using intracranial electrodes implanted in patients undergoing treatment for drug-resistant epilepsy. Previous studies have independently explored narrowband oscillations in the local field potential and broadband power increases. It is not clear, however, which processes contribute to human brain gamma frequency activity, or their dynamics and roles during memory processing...
March 13, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28334864/coordination-among-tertiary-base-pairs-results-in-an-efficient-frameshift-stimulating-rna-pseudoknot
#16
Yu-Ting Chen, Kai-Chun Chang, Hao-Teng Hu, Yi-Lan Chen, You-Hsin Lin, Chiung-Fang Hsu, Cheng-Fu Chang, Kung-Yao Chang, Jin-Der Wen
Frameshifting is an essential process that regulates protein synthesis in many viruses. The ribosome may slip backward when encountering a frameshift motif on the messenger RNA, which usually contains a pseudoknot structure involving tertiary base pair interactions. Due to the lack of detailed molecular explanations, previous studies investigating which features of the pseudoknot are important to stimulate frameshifting have presented diverse conclusions. Here we constructed a bimolecular pseudoknot to dissect the interior tertiary base pairs and used single-molecule approaches to assess the structure targeted by ribosomes...
February 21, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334819/comparative-analyses-of-the-thermodynamic-rna-binding-signatures-of-different-types-of-rna-recognition-motifs
#17
Brighton Samatanga, Antoine Cléry, Pierre Barraud, Frédéric H-T Allain, Ilian Jelesarov
RNA recognition motifs (RRMs) are structurally versatile domains important in regulation of alternative splicing. Structural mechanisms of sequence-specific recognition of single-stranded RNAs (ssRNAs) by RRMs are well understood. The thermodynamic strategies are however unclear. Therefore, we utilized microcalorimetry and semi-empirical analyses to comparatively analyze the cognate ssRNA binding thermodynamics of four different RRM domains, each with a different RNA binding mode. The different binding modes are: canonical binding to the β-sheet surface; canonical binding with involvement of N- and C-termini; binding to conserved loops; and binding to an α-helix...
February 23, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28334798/risk-factors-for-postoperative-delirium-in-patients-undergoing-major-head-and-neck-cancer-surgery-a-meta-analysis
#18
Yun Zhu, Gangpu Wang, Shengwen Liu, Shanghui Zhou, Ying Lian, Chenping Zhang, Wenjun Yang
Objective: Postoperative delirium is common after extensive surgery. This study aimed to collate and synthesize published literature on risk factors for delirium in patients with head and neck cancer surgery. Methods: Three databases were searched (MEDLINE, Embase, and Cochrane Library) between January 1987 and July 2016. The Newcastle Ottawa Scale (NOS) was adopted to evaluate the study quality. Pooled odds ratios or mean differences for individual risk factors were estimated using the Mantel-Haenszel and inverse-variance methods...
February 24, 2017: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28334785/amino-acid-substitution-equivalent-to-human-chorea-acanthocytosis-i2771r-in-yeast-vps13-protein-affects-its-binding-to-phosphatidylinositol-3-phosphate
#19
Weronika Rzepnikowska, Krzysztof Flis, Joanna Kaminska, Marcin Grynberg, Agnieszka Urbanek, Kathryn R Ayscough, Teresa Zoladek
The rare human disorder chorea-acanthocytosis (ChAc) is caused by mutations in hVPS13A gene. The hVps13A protein interacts with actin and regulates the level of phosphatidylinositol 4-phosphate (PI4P) in the membranes of neuronal cells. Yeast Vps13 is involved in vacuolar protein transport and, like hVps13A, participates in PI4P metabolism. Vps13 proteins are conserved in eukaryotes, but their molecular function remains unknown. One of the mutations found in ChAc patients causes amino acids substitution I2771R which affects the localization of hVps13A in skeletal muscles...
March 1, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334609/basolateral-to-central-amygdala-neural-circuits-for-appetitive-behaviors
#20
Joshua Kim, Xiangyu Zhang, Shruti Muralidhar, Sarah A LeBlanc, Susumu Tonegawa
Basolateral amygdala (BLA) principal cells are capable of driving and antagonizing behaviors of opposing valence. BLA neurons project to the central amygdala (CeA), which also participates in negative and positive behaviors. However, the CeA has primarily been studied as the site for negative behaviors, and the causal role for CeA circuits underlying appetitive behaviors is poorly understood. Here, we identify several genetically distinct populations of CeA neurons that mediate appetitive behaviors and dissect the BLA-to-CeA circuit for appetitive behaviors...
March 22, 2017: Neuron
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