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https://www.readbyqxmd.com/read/27911464/two-successful-insertions-of-peripherally-inserted-central-catheter-in-a-super-elderly-patient-with-bilateral-pacemaker-placement
#1
Wenyan Sun, Yufen Ma, Bing Liu, Ruibing Ge, Kai Wang, Qi Song
Peripherally inserted central catheters (PICCs) have been placed through the peripheral veins, and the best location for the tip of the PICCs is the lower third of the superior vena cava (SVC) and cavo-atrial junction. PICCs are commonly used in intravenous administration, parenteral nutrition therapy, chemotherapy, as well as in critical care units. The success rates in venipuncture are enhanced when ultrasonographic guides are used by the bedside PICC teams. There have been few reports of PICCs placed in super elderly patients with permanent cardiac pacemakers...
December 2, 2016: Journal of Vascular Access
https://www.readbyqxmd.com/read/27911256/a-residue-located-at-the-junction-of-the-head-and-stalk-regions-of-measles-virus-fusion-protein-regulates-membrane-fusion-by-controlling-conformational-stability
#2
Yuto Satoh, Saeka Yonemori, Mitsuhiro Hirose, Hiroko Shogaki, Hiroshi Wakimoto, Yoshinori Kitagawa, Bin Gotoh, Tsuyoshi Shirai, Ken-Ichi Takahashi, Masae Itoh
The fusion (F) protein of measles virus (MV) performs refolding from the thermodynamically metastable prefusion form to the highly stable postfusion form via an activated unstable intermediate stage, to induce membrane fusion. Some amino acids involved in the fusion regulation cluster in the heptad repeat B (HR-B) domain of the stalk region, among which substitution of residue 465 by various amino acids revealed that fusion activity correlates well with its side chain length from the Cα (p<0.01) and van der Waals volume (p<0...
December 1, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27911067/-vascular-interventional-radiology-a-fundamental-procedure-for-the-management-of-paediatric-trauma
#3
E Bordón Cabrera, A Laín, R Gander, M Pérez Lafuente, I Díez Miranda, C G Fontecha, L Seidler, I Delgado, S Cañadas Palazón, J Lloret
INTRODUCTION: The management of active bleeding with haemodinamic lability in the paediatric trauma patient is difficult and generally leads to damage control surgery. Vascular Interventional Radiology (VIR) techniques are useful for the diagnosis as for the definitive treatment. AIM: The aim of our study was to describe our experience and evaluate effectiveness of VIR in the management of the paediatric trauma patient with active bleeding signs. METHODS: Retrospective analysis (2003-2014) of politraumatic patients who showed contrast blush on computed tomography and then treated by VIR techniques...
January 25, 2016: Cirugía Pediátrica: Organo Oficial de la Sociedad Española de Cirugía Pediátrica
https://www.readbyqxmd.com/read/27911030/acellular-endocardium-as-a-novel-biomaterial-for-the-intima-of-tissue-engineered-small-caliber-vascular-grafts
#4
Feng Wang, Xin Guan, TianYi Wu, JianOu Qiao, ZhaoQing Han, JinLong Wu, XiaoWei Yu, QingJun You
We aimed to investigate whether acellular endocardium can be used as a useful biomaterial for the intima of engineered small-caliber vascular grafts. Fresh endocardium was harvested from the swine left atrium and was decellularized by digestion with the decellularization solution of Triton X-100 and SDS containing DNase I and RNase A. Surface morphological characteristics and Young's modulus were evaluated. To analyze the effect of mechanical characteristics on cell adhesion, the decellularized endocardium was stiffened with 2...
December 2016: Artificial Organs
https://www.readbyqxmd.com/read/27910324/development-of-multi-frequency-esr-edmr-system-using-a-rectangular-cavity-equipped-with-waveguide-window
#5
Kunito Fukuda, Naoki Asakawa
A straightforward method for a variable frequency electron spin resonance/electrically detected magnetic resonance (ESR/EDMR) spectroscopy using a C-band microwave cavity equipped with waveguide windows is presented. The method enables us to perform quasi-continuous multiple resonance frequency (MF-ESR/EDMR) experiments for electronic devices. The C-band microwave circuitry was selected because of larger available sample volume than that for conventional X-band one. All the measurements were performed using a combined sample of 2,2-diphenyl-1-picrylhydrazyl/ pn-junction Si diode...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909976/erratum-to-regulation-of-caveolin-1-and-junction-proteins-by-bfgf-contributes-to-the-integrity-of-blood-spinal-cord-barrier-and-functional-recovery
#6
Li-Bing Ye, Xi-Chong Yu, Qing-Hai Xia, Ying Yang, Da-Qing Chen, Fenzan Wu, Xiao-Jie Wei, Xie Zhang, Bin-Bin Zheng, Xiao-Bing Fu, Hua-Zi Xu, Xiao-Kun Li, Jian Xiao, Hong-Yu Zhang
No abstract text is available yet for this article.
December 1, 2016: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/27909803/evolutionary-origin-of-endochondral-ossification-the-transdifferentiation-hypothesis
#7
REVIEW
Fret Cervantes-Diaz, Pedro Contreras, Sylvain Marcellini
The vertebrate endoskeleton results from the piecemeal assembly of bone and cartilage as well as additional types of calcified extracellular matrices produced by seemingly hybrid cell types of intermediate phenotypes between osteoblasts and chondrocytes. Hence, shedding light on the emergence and subsequent diversification of skeletal tissues represents a major challenge in vertebrate evolutionary developmental biology. A 150-year-old debate in the field was recently solved by lineage tracing experiments demonstrating that, during mouse endochondral bone development, a subset of chondrocytes evades apoptosis and transdifferentiate into osteoblasts at the chondro-osseous junction...
December 1, 2016: Development Genes and Evolution
https://www.readbyqxmd.com/read/27909548/microvasculature-of-the-esophagus-and-gastroesophageal-junction-lesson-learned-from-submucosal-endoscopy
#8
REVIEW
Roberta Maselli, Haruhiro Inoue, Haruo Ikeda, Manabu Onimaru, Akira Yoshida, Esperanza Grace Santi, Hiroki Sato, Bu'Hussain Hayee, Shin-Ei Kudo
Advanced therapeutic endoscopy, in particular endoscopic mucosal resection, endoscopic submucosal dissection, per-oral endoscopic myotomy, submucosal endoscopic tumor resection opened a new era where direct esophageal visualization is possible. Combining these information with advanced diagnostic endoscopy, the esophagus is organized, from the luminal side to outside, into five layers (epithelium, lamina propria with lamina muscularis mucosa, submucosa, muscle layer, adventitia). A specific vascular system belonging to each layer is thus visible: Mucosa with the intra papillary capillary loop in the epithelium and the sub-epithelial capillary network in the lamina propria and, at the lower esophageal sphincter (LES) level with the palisade vessels; submucosa with the drainage vessels and the spindle veins at LES level; muscle layer with the perforating vessels; peri-esophageal veins in adventitia...
November 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27909509/junctional-beats-during-cryo-ablation-of-the-slow-pathway-for-the-elimination-of-atrioventricular-nodal-reentrant-tachycardia
#9
Murat Sucu, Vedat Davutoglu, Esra Polat
The patient was a 39-year-old female with recurrent paroxysmal, regular narrow QRS complex tachycardia. Atrioventricular nodal reentrant tachycardia (AVNRT) was induced. The cryo-ablation attempts (-80°C, 240 second) were performed in the inferior-posterior triangle of Koch. We observed several junctional beats during cryo-ablation. After successful cryo-ablation, AVNRT induction was repeatedly checked during a waiting period of 30 minutes without recurrence. In our case we demonstrated that junctional beats can be observed during cryo-ablation...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27908939/l-shaped-mini-sternotomy-combined-with-videoscopic-approach-for-thymoma-with-invasion-of-major-veins
#10
Atsushi Suga, Shunsuke Yamada, Haruka Takeichi, Yusuke Nakamura, Masayuki Iwazaki
It might be possible to remove thymic tumors with minimal invasion of the left brachiocephalic vein (BCV) using an advanced videoscopic technique; simple resection of this vessel can be achieved via such an approach. However, tumor invasion of the superior vena cava or right  BCV requires angioplasty or reconstruction, both of which are difficult to perform in videoscopic procedures. We report a case of invasive thymoma with localized invasion of the great vessels at the junction of the left BCV and superior vena cava...
December 1, 2016: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/27908908/double-trouble-pelvi-ureteric-junction-obstruction-and-renal-cell-carcinoma-in-right-to-left-crossed-fused-ectopia
#11
Sumit Saini, Siddharth Yadav, Brusabhanu Nayak
Crossed renal ectopia is a rare occurrence. The majority of the crossed units are fused to their ipsilateral mate. Pelvi-ureteric junction obstruction (PUJO) in crossed fused moieties has been reported very rarely. Similarly, malignancy arising in the crossed over moieties is a rare occurrence too. Only a few cases have been reported earlier. We are here reporting an unusual case with coexistent PUJO and renal cell carcinoma in the crossed over moiety of right to left crossed fused ectopia. To the best of our knowledge, this is the first reported case with both these pathologies, coexisting, in the crossed over moiety...
December 1, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27908375/treatment-of-radiation-induced-urethral-strictures
#12
REVIEW
Matthias D Hofer, Joceline S Liu, Allen F Morey
Radiation therapy may result in urethral strictures from vascular damage. Most radiation-induced urethral strictures occur in the bulbomembranous junction, and urinary incontinence may result as a consequence of treatment. Radiation therapy may compromise reconstruction due to poor tissue healing and radionecrosis. Excision and primary anastomosis is the preferred urethroplasty technique for radiation-induced urethral stricture. Principles of posterior urethroplasty for trauma may be applied to the treatment of radiation-induced urethral strictures...
February 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/27908243/mitochondria-targeted-antioxidant-skqr1-reduces-tnf-induced-endothelial-permeability-in-vitro
#13
I I Galkin, O Yu Pletjushkina, R A Zinovkin, V V Zakharova, B V Chernyak, E N Popova
Prolonged or excessive increase in the circulatory level of proinflammatory tumor necrosis factor (TNF) leads to abnormal activation and subsequent damage to endothelium. TNF at high concentrations causes apoptosis of endothelial cells. Previously, using mitochondria-targeted antioxidants of SkQ family, we have shown that apoptosis of endothelial cells is dependent on the production of reactive oxygen species (ROS) in mitochondria (mito-ROS). Now we have found that TNF at low concentrations does not cause cell death but activates caspase-3 and caspase-dependent increase in endothelial permeability in vitro...
October 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27908236/interaction-between-saccharomyces-cerevisiae-mitochondrial-dna-binding-protein-abf2p-and-cce1p-resolvase
#14
E O Samoilova, I A Krasheninnikov, S A Levitskii
Mitochondrial DNA is susceptible to the action of reactive oxygen species generated by the reactions of oxidative phosphorylation. Homologous recombination is one of the mechanisms providing integrity of the mitochondrial genome. Some proteins that take part in this process in budding yeast mitochondria have been identified. These include Abf2p, the major protein of the mt-nucleoid that specifically binds cruciform DNA, and Cce1p - Holliday junction resolvase. Here we show that Abf2p does not significantly affect either binding of Cce1p to branched DNA or rate and specificity of Holliday junction resolution...
October 2016: Biochemistry. Biokhimii︠a︡
https://www.readbyqxmd.com/read/27907215/cd8-t-cells-induce-fatal-brainstem-pathology-during-cerebral-malaria-via-luminal-antigen-specific-engagement-of-brain-vasculature
#15
Phillip A Swanson, Geoffrey T Hart, Matthew V Russo, Debasis Nayak, Takele Yazew, Mirna Peña, Shahid M Khan, Chris J Janse, Susan K Pierce, Dorian B McGavern
Cerebral malaria (CM) is a severe complication of Plasmodium falciparum infection that results in thousands of deaths each year, mostly in African children. The in vivo mechanisms underlying this fatal condition are not entirely understood. Using the animal model of experimental cerebral malaria (ECM), we sought mechanistic insights into the pathogenesis of CM. Fatal disease was associated with alterations in tight junction proteins, vascular breakdown in the meninges / parenchyma, edema, and ultimately neuronal cell death in the brainstem, which is consistent with cerebral herniation as a cause of death...
December 2016: PLoS Pathogens
https://www.readbyqxmd.com/read/27907206/intestinal-fluid-permeability-in-atlantic-salmon-salmo-salar-l-is-affected-by-dietary-protein-source
#16
Haibin Hu, Trond M Kortner, Karina Gajardo, Elvis Chikwati, John Tinsley, Åshild Krogdahl
In Atlantic salmon (Salmo salar L.), and also in other fish species, certain plant protein ingredients can increase fecal water content creating a diarrhea-like condition which may impair gut function and reduce fish growth. The present study aimed to strengthen understanding of the underlying mechanisms by observing effects of various alternative plant protein sources when replacing fish meal on expression of genes encoding proteins playing key roles in regulation of water transport across the mucosa of the distal intestine (DI)...
2016: PloS One
https://www.readbyqxmd.com/read/27906739/posterior-vertebral-column-resection-with-intraoperative-manual-retraction-for-the-treatment-of-posttubercular-kyphosis-in-upper-thoracic-spine-or-cervicothoracic-junction
#17
Yuqiao Chen, Guohua Lü, Bing Wang, Lei Li, Lei Kuang
STUDY DESIGN: This is a case-series. OBJECTIVE: To evaluate the clinical and radiologic outcomes of posterior vertebral column resection (PVCR) for treatment of posttubercular kyphosis in upper thoracic spine and cervicothoracic junction (CTJ). SUMMARY OF BACKGROUND DATA: Surgical management of severe posttubercular kyphosis in upper thoracic spine or CTJ is challenging. A new technique that combines PVCR and intraoperative manual traction in a single procedure, was developed to maximize the correction rate and minimize the risk of dural buckling and spinal cord injury...
November 30, 2016: Clinical Spine Surgery
https://www.readbyqxmd.com/read/27906331/compact-silicon-photonic-resonance-sssisted-variable-optical-attenuator
#18
Xiaoxi Wang, Ryan Aguinaldo, Anthony Lentine, Christopher DeRose, Andrew L Starbuck, Douglas Trotter, Andrew Pomerene, Shayan Mookherjea
A two-part silicon photonic variable optical attenuator is demonstrated in a compact footprint which can provide a high extinction ratio at wavelengths between 1520 nm and 1620 nm. The device was made by following the conventional p-i-n waveguide section by a high-extinction-ratio second-order microring filter section. The rings provide additional on-off contrast by utilizing a thermal resonance shift, which harvested the heat dissipated by current injection in the p-i-n junction. We derive and discuss a simple thermal-resistance model in explanation of these effects...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906316/ring-modulators-with-enhanced-efficiency-based-on-standing-wave-operation-on-a-field-matched-interdigitated-p-n-junction
#19
Fabio Pavanello, Xiaoge Zeng, Mark T Wade, Miloš A Popović
We propose ring modulators based on interdigitated p-n junctions that exploit standing rather than traveling-wave resonant modes to improve modulation efficiency, insertion loss and speed. Matching the longitudinal nodes and antinodes of a standing-wave mode with high (contacts) and low (depletion regions) carrier density regions, respectively, simultaneously lowers loss and increases sensitivity significantly. This approach permits further to relax optical constraints on contacts placement and can lead to lower device capacitance...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906313/experimental-study-on-the-transition-of-plasmonic-resonance-modes-in-double-ring-dimers-by-conductive-junctions-in-the-terahertz-regime
#20
Huifang Zhang, Chun Li, Caihong Zhang, Xueqian Zhang, Jianqiang Gu, Biaobing Jin, Jiaguang Han, Weili Zhang
Plasmonic dimers that made from two subwavelength particles have drawn much attention in the recent years, which are quite promising in local field enhancement, sensing, high frequency conductance probing and electron tunneling. In this work, we experimentally investigate the mode transition effect of different plasmonic resonances in double-ring dimers when introducing conductive junction at the dimer gap in the terahertz regime. Without the junction, the dimers support a single dipolar bonding dimer plasmonic (BDP) mode...
November 28, 2016: Optics Express
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