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https://www.readbyqxmd.com/read/28449503/re-crossing-the-distal-cell-in-bifurcation-verified-by-using-an-enhanced-stent-visualization-system-and-optical-coherence-tomography-a-report-of-two-cases
#1
Ruofei Jia, Zening Jin, Hong Li, Jing Han
The coronary guidewire re-crossing position before the final kissing balloon post-dilation is important to reduce the incidence of incomplete stent apposition in bifurcation lesions. Angiography and intravascular ultrasonography are unreliable at detecting the site of wire re-crossing. The high resolution of optical coherence tomography (OCT) offers the advantage of precise assessment of construction in bifurcation. However, the OCT technique still has some limitations, including the requirement for additional contrast and expense...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449481/procalcitonin-as-preoperative-marker-for-surgery-in-advanced-parapneumonic-empyema
#2
Claudio Caviezel, Philipp Schuetz, Stephan Gerdes, Franco Gambazzi
BACKGROUND: The optimal time point for surgical management of advanced parapneumonic empyema in need of open pleurectomy and decortication remains unclear. We hypothesized that surgical outcomes will be better when procalcitonin (PCT) levels have dropped to normal ranges as evidence for resolution of the underlying pneumonia. METHODS: We retrospectively analyzed outcomes of 38 patients with advanced parapneumonic empyema who underwent open decortication and pleurectomy with available preoperative PCT (pPCT) values...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449461/correlation-of-pleural-effusions-grayscale-sonographic-parameters-with-fluid-s-analysis-results
#3
Alexandros Kalkanis, Charalampos Varsamas, Konstantinos Gourgoulianis
BACKGROUND: Quantitative sonographic methods are used to assess pleural fluid's volume but no validated method exists for the measurement of the fluids' density and other qualitative values. We suggest a quantitative method, based on the pixel density of the pleural effusion's image, in order to evaluate the echogenicity of pleural effusion. METHODS: Pleural ultrasound (US) was performed in 62 patients with pleural effusion. Five consequent images of the pleural effusion were retrieved through axial view between the 9(th) and the 10(th) rib and one from the 10(th) rib through coronal view and converted into the high-resolution tagged image file format...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449422/the-effect-of-anti-reflux-therapy-on-patients-diagnosed-with-minor-disorders-of-peristalsis-in-high-resolution-manometry
#4
Joonho Jeong, Sung Eun Kim, Moo In Park, Seun Ja Park, Won Moon, Jae Hyun Kim, Kyoungwon Jung, Youn Jung Choi, Jun Yeob Lee, Young Dal Lee
Background/Aims: Minor disorders of peristalsis are esophageal motility disorders categorized by the Chicago Classification (CC), version 3.0, which was announced in 2014. This study evaluated the efficacy of anti-reflux therapy in patients with minor peristaltic disorders. Methods: Patients with minor peristaltic disorders in accordance with CC v3.0 were included. We reviewed the medical records of patients with esophageal high-resolution manometry findings, and investigated the demographic and clinical information as well as the medical therapy...
April 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28449392/osmotic-stress-decreases-complexity-underlying-the-electrophysiological-dynamic-in-soybean
#5
G F R Saraiva, A S Ferreira, G M Souza
Research rationale: Studies on plant electrophysiology are mostly focused on specific traits of single cells. Inspired by the complexity of the signaling network in plants and by analogies with neurons in human brains, we have sought for evidences of high complexity in the electrical dynamics of plant signaling and a likely relation with environmental cues. Central methods: An EEG-like standard protocol was adopted for high-resolution measurements of the electrical signal in Glycine max seedlings. The signals were continuously recorded in the same plants before and after the osmotic stimuli with a -2 MPa mannitol solution...
April 27, 2017: Plant Biology
https://www.readbyqxmd.com/read/28449301/the-profile-and-dynamics-of-rna-modifications-in-animals
#6
Pieter van Delft, Alper Akay, Sabrina M Huber, Christoph Bueschl, Konrad L M Rudolph, Tomás Di Domenico, Rainer Schuhmacher, Eric A Miska, Shankar Balasubramanian
More than a hundred distinct modified nucleosides have been identified in RNA, but little is known about their distribution across different organisms, their dynamic nature and their response to cellular and environmental stress. Mass-spectrometry-based methods have been at the forefront of identifying and quantifying modified nucleosides. However, they often require synthetic reference standards, which do not exist in the case of many modified nucleosides, and this therefore impedes their analysis. Here we use a metabolic labelling approach to achieve rapid generation of bio-isotopologues of the complete Caenorhabditis elegans transcriptome and its modifications and use them as reference standards to characterise the RNA modification profile in this multicellular organism through an untargeted liquid-chromatography tandem high-resolution mass spectrometry (LC-HRMS) approach...
March 16, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28449245/characterization-of-a-poly-4-vinylpyridine-supported-cupd-bimetallic-catalyst-for-sonogashira-coupling-reactions
#7
Claudio Evangelisti, Antonella Balerna, Rinaldo Psaro, Graziano Fusini, Adriano Carpita, Maurizio Benfatto
CuPd bimetallic Solvated Metal Atoms (SMA) synthesized by metal vapor synthesis (MVS) technique and supported on poly-4-vinylpyridine (PVPy) resin, showed signicantly higher catalytic activity in Sonogashira-type carbon-carbon coupling reactions than the corresponding monometallic Cu and Pd systems as well as their physical mixture. The analysis of the bimetallic catalyst combining high-resolution transmission electron microscopy (HRTEM) and x-ray absorption ne structure (XAFS) spectroscopy revealed the presence of small Pd nanoparticles (dm = 2...
April 27, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28449209/the-frequency-of-qtc-prolongation-among-pediatric-and-young-adult-patients-receiving-methadone-for-cancer-pain
#8
Kevin Madden, Minjeong Park, Diane Liu, Eduardo Bruera
INTRODUCTION: A prolonged corrected QT (QTc) interval in pediatric patients is defined as ≥470 msec. Methadone can cause a prolonged QTc interval that can lead to ventricular arrhythmias. The risk of methadone-induced prolongation of the QTc interval in children and young adults is unknown. The purpose of the study was to determine the frequency of QTc prolongation among pediatric and young adult patients with cancer pain on methadone treatment. METHODS: We retrospectively reviewed data for all patients on methadone during the study period...
April 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28448917/assessing-future-changes-in-the-occurrence-of-rainfall-induced-landslides-at-a-regional-scale
#9
S L Gariano, G Rianna, O Petrucci, F Guzzetti
According to the fifth report of the Intergovernmental Panel on Climate Change, an increase in the frequency and the intensity of extreme rainfall is expected in the Mediterranean area. Among different impacts, this increase might result in a variation in the frequency and the spatial distribution of rainfall-induced landslides, and in an increase in the size of the population exposed to landslide risk. We propose a method for the regional-scale evaluation of future variations in the occurrence of rainfall-induced landslides, in response to changes in rainfall regimes...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28448861/congenital-unilateral-diaphragmatic-eventration-in-an-adult-a-rare-case-presentation
#10
Johann Paulo S Guzman, Nilo C Delos Santos, Edgar A Baltazar, Allan Troy D Baquir
We present a rare case of 32year old female with congenital diaphragmatic eventeration female presenting in an adult. She had symptoms of intermittent dyspnea and occasional epigastric discomfort. Patient had no previous history of trauma. Physical examination showed bowel sound involving the left hemithorax. Imaging modalities confirmed the diagnosis of a congenital left diaphragmatic eventeration. Patient underwent plication of the diaphragm using the abdominal approach. Intra-operatively, the left diaphragm was attenuated...
April 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28448851/accurate-3d-reconstruction-of-bony-surfaces-using-ultrasonic-synthetic-aperture-techniques-for-robotic-knee-arthroplasty
#11
William Kerr, Philip Rowe, Stephen Gareth Pierce
Robotically guided knee arthroplasty systems generally require an individualized, preoperative 3D model of the knee joint. This is typically measured using Computed Tomography (CT) which provides the required accuracy for preoperative surgical intervention planning. Ultrasound imaging presents an attractive alternative to CT, allowing for reductions in cost and the elimination of doses of ionizing radiation, whilst maintaining the accuracy of the 3D model reconstruction of the joint. Traditional phased array ultrasound imaging methods, however, are susceptible to poor resolution and signal to noise ratios (SNR)...
April 19, 2017: Computerized Medical Imaging and Graphics: the Official Journal of the Computerized Medical Imaging Society
https://www.readbyqxmd.com/read/28448798/chemodiversity-of-two-closely-related-tetraploid-centaurium-species-and-their-hexaploid-hybrid-metabolomic-search-for-high-resolution-taxonomic-classifiers
#12
Tijana Banjanac, Milan Dragićević, Branislav Šiler, Uroš Gašić, Borut Bohanec, Jasmina Nestorović Živković, Snežana Trifunović, Danijela Mišić
Species within the genus Centaurium readily hybridize and polyploid complexes are often seen in natural populations. We describe phytochemical profiles of newly discovered allohexaploid hybrid, here named Centaurium pannonicum, and its parental tetraploid species C. erythraea and rare C. littorale ssp. compressum. Our aim was to examine chemodiversity of these taxa in the area of Vojvodina (North Serbia) and to perform metabolomics search for chemical classifiers which would provide high resolution discrimination of parental and hybrid individuals...
April 24, 2017: Phytochemistry
https://www.readbyqxmd.com/read/28448712/-quadratus-femoris-muscle-tear
#13
L G Domínguez-Gasca, J L Alcocer-Maldonado, J Magaña-Reyes, L G Domínguez-Carrillo
BACKGROUND: Quadratus femoris tear is an uncommon injury that usually cause hip pain, it incidence is unknown. The patient can suffer of posterior gluteal pain or groin pain or both, which makes accurate diagnosis difficult, because the differential diagnosis of hip pain is broad. CLINICAL CASE: A 65 years old male, with gluteal and groin pain presented during tennis; evaluated by neurologist with lumbosacral magnetic resonance imaging (MRI) (normal) and referred to physical therapy, a pelvic MRI was required, finding an unsuspected quadratus femoris tear...
September 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/28448690/evaluation-of-column-length-and-particle-size-effect-on-the-untargeted-profiling-of-a-phytochemical-mixture-by-using-uhplc-coupled-to-high-resolution-mass-spectrometry
#14
Riccardo Zenezini Chiozzi, Anna Laura Capriotti, Chiara Cavaliere, Francesca Ferraris, Giorgia La Barbera, Susy Piovesana, Aldo Laganà
Liquid chromatography coupled to high-resolution mass spectrometry is the technique of choice for the untargeted profiling of food matrices. Despite the high potential of high-resolution mass spectrometry, when dealing with complex mixtures, an efficient separation technique is also needed. The novel core-shell chromatographic columns packed with sub-2 μm sized particles are claimed to show very good resolution. However, the analytes retention can be significantly altered when working under ultra-high performance chromatographic conditions...
April 27, 2017: Journal of Separation Science
https://www.readbyqxmd.com/read/28448541/complementary-and-alternative-medicine-cam-use-and-delays-in-presentation-and-diagnosis-of-breast-cancer-patients-in-public-hospitals-in-malaysia
#15
Noor Mastura Mohd Mujar, Maznah Dahlui, Nor Aina Emran, Imisairi Abdul Hadi, Yan Yang Wai, Sarojah Arulanantham, Chea Chan Hooi, Nur Aishah Mohd Taib
Complementary and alternative medicine (CAM) is widely used among the breast cancer patients in Malaysia. Delays in presentation, diagnosis and treatment have been shown to impact the disease prognosis. There is considerable use of CAM amongst breast cancer patients. CAM use has been cited as a cause of delay in diagnosis and treatments in qualitative studies, however there had not been any confirmatory study that confirms its impact on delays. The purpose of this study was to evaluate whether the use of CAM among newly diagnosed breast cancer patients was associated with delays in presentation, diagnosis or treatment of breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28448530/response-of-npt2a-knockout-mice-to-dietary-calcium-and-phosphorus
#16
Yuwen Li, Daniel Caballero, Julian Ponsetto, Alyssa Chen, Chuanlong Zhu, Jun Guo, Marie Demay, Harald Jüppner, Clemens Bergwitz
Mutations in the renal sodium-dependent phosphate co-transporters NPT2a and NPT2c have been reported in patients with renal stone disease and nephrocalcinosis, but the relative contribution of genotype, dietary calcium and phosphate to the formation of renal mineral deposits is unclear. We previously reported that renal calcium phosphate deposits persist and/or reappear in older Npt2a-/- mice supplemented with phosphate despite resolution of hypercalciuria while no deposits are seen in wild-type (WT) mice on the same diet...
2017: PloS One
https://www.readbyqxmd.com/read/28448519/zika-infection-of-neural-progenitor-cells-perturbs-transcription-in-neurodevelopmental-pathways
#17
Lynn Yi, Harold Pimentel, Lior Pachter
BACKGROUND: A recent study of the gene expression patterns of Zika virus (ZIKV) infected human neural progenitor cells (hNPCs) revealed transcriptional dysregulation and identified cell cycle-related pathways that are affected by infection. However deeper exploration of the information present in the RNA-Seq data can be used to further elucidate the manner in which Zika infection of hNPCs affects the transcriptome, refining pathway predictions and revealing isoform-specific dynamics. METHODOLOGY/PRINCIPAL FINDINGS: We analyzed data published by Tang et al...
2017: PloS One
https://www.readbyqxmd.com/read/28448477/evaluation-of-gelatin-tannate-against-symptoms-of-acute-diarrhea-in-pediatric-patients
#18
Eren Çağan, Saime Ceylan, Şenay Mengi, Havva Hasret Çağan
BACKGROUND Acute diarrhea is the second most common cause of morbidity and mortality worldwide, especially in children aged ≤3 years. Some drugs (e.g., the mucoprotector gelatin tannate) plus a reduced osmolality oral rehydration solution (ORS) may effectively reduce symptom duration and severity. The current trial was therefore designed to assess the efficacy and safety of gelatin tannate in pediatric patients with acute diarrhea. MATERIAL AND METHODS This was a randomized, controlled, double-blind, parallel-group, single-center study comparing gelatin tannate plus ORS (103 patients) with ORS plus placebo (100 patients) in children aged 3 months to 12 years with infectious or noninfectious acute diarrhea...
April 27, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28448436/role-of-archaeal-hera-protein-in-the-biology-of-the-bacterium-thermus-thermophilus
#19
Alba Blesa, Nieves G Quintans, Ignacio Baquedano, Carlos P Mata, José R Castón, José Berenguer
Intense gene flux between prokaryotes result in high percentage of archaeal genes in the genome of the thermophilic bacteria Thermus spp. Among these archaeal genes a homolog to the Sulfolobus spp. HerA protein appears in all of the Thermus spp. strains so far sequenced (HepA). The role of HepA in Thermus thermophilus HB27 has been analyzed using deletion mutants, and its structure resolved at low resolution by electron microscopy. Recombinant HepA shows DNA-dependent ATPase activity and its structure revealed a double ring, conically-shaped hexamer with an upper diameter of 150 Å and a bottom module of 95 Å...
April 27, 2017: Genes
https://www.readbyqxmd.com/read/28448431/a-type-2-block-component-decomposition-based-2d-aoa-estimation-algorithm-for-an-electromagnetic-vector-sensor-array
#20
Yu-Fei Gao, Guan Gui, Wei Xie, Yan-Bin Zou, Yue Yang, Qun Wan
This paper investigates a two-dimensional angle of arrival (2D AOA) estimation algorithm for the electromagnetic vector sensor (EMVS) array based on Type-2 block component decomposition (BCD) tensor modeling. Such a tensor decomposition method can take full advantage of the multidimensional structural information of electromagnetic signals to accomplish blind estimation for array parameters with higher resolution. However, existing tensor decomposition methods encounter many restrictions in applications of the EMVS array, such as the strict requirement for uniqueness conditions of decomposition, the inability to handle partially-polarized signals, etc...
April 27, 2017: Sensors
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