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https://www.readbyqxmd.com/read/27913867/comparison-of-different-concepts-for-interpretation-of-chromosomal-aberrations-in-urothelial-cells-detected-by-fluorescence-in-situ-hybridization
#1
Johannes Mischinger, Lutz Philipp Guttenberg, Jörg Hennenlotter, Georgios Gakis, Stefan Aufderklamm, Steffen Rausch, Eva Neumann, Jens Bedke, Stefan Kruck, Christian Schwentner, Arnulf Stenzl, Tilman Todenhöfer
PURPOSE: Urine fluorescence in situ hybridization (FISH) has become a broadly used marker for noninvasive detection of bladder cancer (BC). However, it has been discussed whether the interpretation algorithm proposed by the manufacturer could be improved. Aim of the present study was to compare alternative evaluation strategies of FISH for detection of BC. METHODS: We included 1048 patients suspicious for BC, who underwent urine FISH examination before cystoscopy (diagnostic cohort)...
December 2, 2016: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/27911390/a-method-for-extracting-pigments-from-squid-doryteuthis-pealeii
#2
Christopher W DiBona, Thomas L Williams, Sean R Dinneen, Stephanie F Jones Labadie, Leila F Deravi
Cephalopods can undergo rapid and adaptive changes in dermal coloration for sensing, communication, defense, and reproduction purposes. These capabilities are supported in part by the areal expansion and retraction of pigmented organs known as chromatophores. While it is known that the chromatophores contain a tethered network of pigmented granules, their structure-function properties have not been fully detailed. We describe a method for isolating the nanostructured granules in squid Doryteuthis pealeii chromatophores and demonstrate how their associated pigments can be extracted in acidic solvents...
November 9, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27910719/artifacts-in-multimodal-imaging-of-titanium-zirconium-and-binary-titanium-zirconium-alloy-dental-implants-an-in-vitro-study
#3
Ralf Smeets, Maximilian Schöllchen, Tobias Gauer, Gahzal Aarabi, Alexandre T Assaf, Carsten Rendenbach, Benedicta Beck-Broichsitter, Jan Semmusch, Jan Sedlacik, Max Heiland, Jens Fiehler, Susanne Siemonsen
OBJECTIVES: To analyze and evaluate imaging artifacts induced by zirconium, titanium and titanium-zirconium alloy dental implants. METHODS: Zirconium, titanium and titanium-zirconium alloy implants were embedded in gelatin and MRI, CT and CBCT were performed. Standard-protocols were used for each modality. For MRI, line-distance-profiles were plotted to quantify the accuracy of size-determination. For CT and CBCT, six shells surrounding the implant were defined every 0...
December 2, 2016: Dento Maxillo Facial Radiology
https://www.readbyqxmd.com/read/27910518/aerogel-cherenkov-detector-for-characterizing-the-intense-flash-x-ray-source-cygnus-spectrum
#4
Y Kim, H W Herrmann, A M McEvoy, C S Young, C Hamilton, D D Schwellenbach, R M Malone, M I Kaufman, A S Smith
An aerogel Cherenkov detector is proposed to measure the X-ray energy spectrum from the Cygnus-intense flash X-ray source operated at the Nevada National Security Site. An array of aerogels set at a variety of thresholds between 1 and 3 MeV will be adequate to map out the bremsstrahlung X-ray production of the Cygnus, where the maximum energy of the spectrum is normally around 2.5 MeV. In addition to the Cherenkov radiation from aerogels, one possible competing light-production mechanism is optical transition radiation (OTR), which may be significant in aerogels due to the large number of transitions from SiO2 clusters to vacuum voids...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909622/the-effectiveness-of-biofeedback-therapy-in-children-with-monosymptomatic-enuresis-resistant-to-desmopressin-treatment
#5
Eyüp Burak Sancak, Alpaslan Akbaş, Ömer Kurt, Cabir Alan, Ahmet Reşit Ersay
OBJECTIVE: To investigate the effect of biofeedback therapy on children with desmopressin- resistant primary monosymptomatic enuresis (MsE). MATERIAL AND METHODS: The study comprised both retrospective and prospective sections. A total of 262 medical files of patients who were diagnosed as enuresis between November 2012 and January 2015 were retrospectively screened. Patients with neuropathic bladder, daytime voiding problems, anatomical pathology and enuresis-related diseases were excluded from the study...
December 2016: Turkish Journal of Urology
https://www.readbyqxmd.com/read/27908597/establishing-a-standard-protocol-for-the-voiding-cystourethrography-vcug
#6
EDITORIAL
Dominic Frimberger, Stuart Bauer, Mark Cain, Saul Greenfield, Andrew Kirsch, Faridali Ramji, Gisela Mercado-Deane, Christopher Cooper
No abstract text is available yet for this article.
November 12, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27908363/definition-of-successful-treatment-and-optimal-follow-up-after-urethral-reconstruction-for-urethral-stricture-disease
#7
REVIEW
Bradley A Erickson, George M Ghareeb
The definition of a successful urethroplasty, the lack of need for a secondary procedure, is outdated and must be amended to incorporate objective and subjective outcomes. Success is assigned if a flexible cystoscope can traverse the reconstructed urethra without force. Functional success is assigned if patient-reported outcome measures reveal improvement in voiding symptoms and urinary quality of life. Optimal follow-up strategy allows determination of anatomic and functional outcomes, protects genitourinary health, and prevents excessive invasive testing, unnecessary cost, discomfort, anxiety, and risk...
February 2017: Urologic Clinics of North America
https://www.readbyqxmd.com/read/27908099/molecular-dynamics-study-of-nano-porous-materials-enhancement-of-mobility-of-li-ions-in-lithium-disilicate
#8
Junko Habasaki
In several nano-porous materials and their composites, enhancement of ionic conductivity has been reported and several mechanisms having different origins have been proposed so far. In the present work, ionic motion of Li ions in porous lithium disilicates is examined by molecular dynamics simulation in the constant volume conditions and the enhancement of the dynamics is predicted. Structures and dynamics of ions in a nano-porous system were characterized and visualized to clarify the mechanism of the enhancement...
November 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27906203/two-phase-slipi-for-instantaneous-lif-and-mie-imaging-of-transient-fuel-sprays
#9
Michael Storch, Yogeshwar Nath Mishra, Matthias Koegl, Elias Kristensson, Stefan Will, Lars Zigan, Edouard Berrocal
We report in this Letter a two-phase structured laser illumination planar imaging [two-pulse SLIPI (2p-SLIPI)] optical setup where the "lines structure" is spatially shifted by exploiting the birefringence property of a calcite crystal. By using this optical component and two cross-polarized laser pulses, the shift of the modulated pattern is not "time-limited" anymore. Consequently, two sub-images with spatially mismatched phases can be recorded within a few hundred of nanoseconds only, freezing the motion of the illuminated transient flow...
December 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/27904649/fasciocutaneous-flap-reinforcement-of-ventral-onlay-buccal-mucosa-grafts-enables-neophallus-revision-urethroplasty
#10
Stelios C Wilson, John T Stranix, Kiranpreet Khurana, Shane D Morrison, Jamie P Levine, Lee C Zhao
BACKGROUND: Urethral strictures or fistulas are common complications after phalloplasty. Neourethral defects pose a difficult reconstructive challenge using standard techniques as there is generally insufficient ventral tissue to support a graft urethroplasty. We report our experience with local fasciocutaneous flaps for support of ventrally-placed buccal mucosal grafts (BMGs) in phalloplasty. METHODS: A retrospective review of patients who underwent phalloplasty and subsequently required revision urethroplasty using BMGs between 2011 and 2015 was completed...
December 2016: Therapeutic Advances in Urology
https://www.readbyqxmd.com/read/27902468/synthesis-of-a-cell-penetrating-peptide-modified-superparamagnetic-iron-oxide-and-mri-detection-of-bladder-cancer
#11
Chen Ding, Kaijie Wu, Weiyi Wang, Zhenfeng Guan, Lei Wang, Xinyang Wang, Rong Wang, Li Liu, Jinhai Fan
Bladder cancer is the most common malignancy of the urinary tract for which the accurate measurement of minimal residual disease is critical to treatment and determining prognosis. Although cystoscope examination and voided urine cytology remain the current standard of care for detecting residual disease, these approaches are limited by mechanical trauma and lack sensitivity. To develop a new accurate noninvasive method, we developed a novel contrast agent where the surface of superparamagnetic iron oxide (SPIO) nanoparticles is functionalized with a bladder cancer-specific fluorescein isothiocyanate (FITC) labeled cell penetrating peptide (CPP)-polyarginine peptides (R11) for active targeting and imaging...
November 24, 2016: Oncotarget
https://www.readbyqxmd.com/read/27901385/concentrations-of-thromboxane-metabolites-in-feline-urine
#12
Brittany Heggem-Perry, Stephanie A Smith, Maureen A McMichael, Mauria O'Brien, Anne Saunders, Jason Tarricone
OBJECTIVE To determine the predominant thromboxane (TX) metabolite in urine of healthy cats, evaluate whether the method of sample collection would impact concentration of that metabolite, and propose a reference interval for that metabolite in urine of healthy cats. ANIMALS 17 cats (11 purpose-bred domestic shorthair cats, 5 client-owned domestic shorthair cats, and 1 client-owned Persian cat). PROCEDURES All cats were deemed healthy on the basis of results for physical examination, a CBC, serum biochemical analysis, urinalysis, and measurement of prothrombin time and activated partial thromboplastin time...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27900358/structural-and-antitrypanosomal-data-of-different-carbasones-of-piperitone
#13
Amoussatou Sakirigui, Fernand Gbaguidi, Urbain C Kasséhin, Jacques Poupaert, Georges C Accrombessi, Simeon O Kotchoni
This article reports data on four carbazones of piperitone: semicarbazone 1, thiosemicarbazone 2, 4-phenyl semicarbazone 3 and 4-phenyl thiosemicarbazone 4 prepared directly in situ from essential oil of Cymbopogon schoenantus, whose GC-FID and GC-MS analysis revealed piperitone as major component (68.20%). The structures of hemi-synthesized compounds were confirmed by high throughput IR, MS, (1)H and (13)C NMR based spectrometric analysis. Their antiparasitic activities were evaluated in vitro on Trypanosoma brucei brucei (Tbb)...
December 2016: Data in Brief
https://www.readbyqxmd.com/read/27900219/outcome-of-laparoscopic-upper-pole-heminephroureterectomy-in-children-a-two-centre-experience
#14
Ali Serdar Gözen, Haytham Badawy, Dogu Teber, Akram Assem, Jens Rassweiler
OBJECTIVE: To report our multicentre experience and outcomes with laparoscopic transperitoneal and retroperitoneal upper pole heminephroureterectomy (HNU) in children with renal duplex systems and impaired upper pole. PATIENTS AND METHODS: Laparoscopic HNU was performed in 22 children (15 girls, seven boys) with a mean age of 5.9 years. A retroperitoneal approach was used in 17 patients and a transperitoneal approach in the remaining five, between 2005 and 2010...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27900218/a-prospective-randomised-controlled-study-comparing-bipolar-plasma-vaporisation-of-the-prostate-to-monopolar-transurethral-resection-of-the-prostate
#15
Ahmed M Elsakka, Hssan H Eltatawy, Khaled H Almekaty, Ahmed R Ramadan, Tarik A Gameel, Yasser Farahat
OBJECTIVES: To compare the safety and efficacy of bipolar transurethral plasma vaporisation (B-TUVP) as an alternative to the 'gold standard' monopolar transurethral resection of the prostate (M-TURP) for the treatment of benign prostatic hyperplasia (BPH) in a prospective randomised controlled study. PATIENTS AND METHODS: In all, 82 patients indicated for prostatectomy were assigned to two groups, group I (40 patients) underwent B-TUVP and group II (42 patients) underwent M-TURP...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27899974/validation-of-the-diagnostic-utility-of-urinary-midkine-for-the-detection-of-bladder-cancer
#16
Dana Vu Van, Ulrike Heberling, Manfred P Wirth, Susanne Fuessel
As it has been demonstrated previously that midkine (also known as neurite growth-promoting factor 2) protein levels in urine of bladder cancer (BCa) patients are increased compared to healthy controls, the present study validated the diagnostic utility of midkine in an independent patient cohort and compared the observed values with voided urine cytology (VUC), which is the current reference standard for non-invasive diagnosis of BCa. Voided urine samples were prospectively collected from 92 BCa patients and 70 control subjects...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27899331/comparison-of-7t-and-3t-mri-in-patients-with-moyamoya-disease
#17
Byeong Ho Oh, Hyeong Cheol Moon, Hyeon Man Baek, Youn Joo Lee, Sang Woo Kim, Young Jai Jeon, Gun Seok Lee, Hong Rae Kim, Jai Ho Choi, Kyung Soo Min, Mou Seop Lee, Young Gyu Kim, Dong Ho Kim, Won Seop Kim, Young Seok Park
Magnetic resonance imaging and magnetic resonance angiography (MRI/MRA) are widely used for evaluating the moyamoya disease (MMD). This study compared the diagnostic accuracy of 7Tesla (T) and 3T MRI/MRA in MMD. In this case control study, 12 patients [median age: 34years; range (10-66years)] with MMD and 12 healthy controls [median age: 25years; range (22-59years)] underwent both 7T and 3T MRI/MRA. To evaluate the accuracy of MRI/MRA in MMD, five criteria were compared between imaging systems of 7T and 3T: Suzuki grading system, internal carotid artery (ICA) diameter, ivy sign, flow void of the basal ganglia on T2-weighted images, and high signal intensity areas of the basal ganglia on time-of-flight (TOF) source images...
November 26, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27898997/the-effect-of-silica-and-prepolymer-nanoparticles-on-the-mechanical-properties-of-denture-base-acrylic-resin
#18
Pinar Cevik, Arzu Zeynep Yildirim-Bicer
PURPOSE: To evaluate how hydrophobic nanoparticle silica and prepolymer affect the flexural strength, surface hardness, surface roughness, and resilience of a denture base acrylic resin. MATERIALS AND METHODS: A total of 40 denture base acrylic resin specimens with dimensions 65 × 10 × 3 mm(3) were fabricated in this study. Specimens were divided into five experimental groups (n = 8) according to surface-treated silica and prepolymer concentration incorporated into the acrylic resin (weight %) prior to polymerization: G1 acted as control, no fillers were used in this group...
November 29, 2016: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/27897138/a-predictive-model-of-the-tensile-strength-of-twisted-carbon-nanotube-yarns
#19
Seung-Yeol Jeon, Jinhyeok Jang, Bon-Woong Koo, Young-Woon Kim, Woong-Ryeol Yu
Due to the outstanding mechanical properties of individual carbon nanotubes (CNTs) at the nanoscale, CNT yarns are expected to demonstrate high strength at the macroscale. In this study, a predictable model was developed to predict the tensile strength of twisted CNT yarns. First, the failure mechanism of twisted CNT yarns was investigated using in situ tensile tests and ex situ observations. It was revealed that CNT bundles, which are groups of CNTs that are tightly bound together, formed during tensile loading, leaving some voids around the bundles...
November 29, 2016: Nanotechnology
https://www.readbyqxmd.com/read/27896790/free-volume-structure-of-acrylic-type-dental-nanocomposites-tested-with-annihilating-positrons
#20
Olha Shpotyuk, Adam Ingram, Oleh Shpotyuk
Positron annihilation spectroscopy in lifetime measuring mode exploring conventional fast-fast coincidence ORTEC system is employed to characterize free volume structure of commercially available acrylic-type dental restorative composite Charisma® (Heraeus Kulzer GmbH, Germany). The measured lifetime spectra for uncured and light-cured composites are reconstructed from unconstrained x3-term fitting and semi-empirical model exploring x3-x2-coupling decomposition algorithm. The governing channel of positron annihilation in the composites studied is ascribed to mixed positron-Ps trapping, where Ps decaying in the third component is caused entirely by input from free-volume holes in polymer matrix, while the second component is defined by free positron trapping in interfacial free-volume holes between filler nanoparticles and surrounded polymer matrix...
December 2016: Nanoscale Research Letters
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