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https://www.readbyqxmd.com/read/29352755/a-mos1-transposase-in-vivo-assay-to-screen-new-hiv-1-integrase-inhibitors
#1
Mariana Cancian, Elgion L S Loreto
The integrase and transposase enzymes of retrovirus and transposons, respectively, share the catalytic DDE domain. In vitro assays showed that inhibitors of HIV-1 integrase generally inhibit the mariner Mos1 transposase. Using a Drosophila strain in which the mobilisation of the mariner element can be quantified by mosaic eyes, we showed that flies maintained in medium containing 210 µM to 4 mM of raltegravir, or 1 or 2 mM of dolutegravir, which are HIV-1 integrase inhibitor used in AIDS treatment, have 23-33% less somatic mobilisation in mosaic eyes when treated with raltegravir and 28-32% when treated with dolutegravir...
January 19, 2018: Genetica
https://www.readbyqxmd.com/read/29352698/gastric-varices-bleed-at-lower-portosystemic-pressure-gradients-than-esophageal-varices
#2
Joseph D Morrison, Nasya Mendoza-Elias, Andrew J Lipnik, R Peter Lokken, James T Bui, Charles E Ray, Ron C Gaba
PURPOSE: To quantify and compare portosystemic pressure gradients (PSGs) between bleeding esophageal varices (EV) and gastric varices (GV). MATERIALS AND METHODS: In a single-center, retrospective study, 149 patients with variceal bleeding (90 men, 59 women, mean age 52 y) with EV (n = 69; 46%) or GV (n = 80; 54%) were selected from 320 consecutive patients who underwent successful transjugular intrahepatic portosystemic shunt (TIPS) creation from 1998 to 2016...
January 15, 2018: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/29352695/truly-anatomic-coracoclavicular-ligament-reconstruction-with-2-endobutton-devices-for-acute-rockwood-type-v-acromioclavicular-joint-dislocations
#3
Cheng Xue, Li-Jun Song, Hao Zhang, Guo-Long Tang, Xiang Li, Jia-Hu Fang
BACKGROUND: Truly anatomic coracoclavicular ligament reconstruction (TACCR) according to the original insertions is a creative new method for the treatment of severe acromioclavicular separation. This research analyzed the clinical and radiologic results of TACCR in 25 patients with at least 2-year follow-up. METHODS: The study enrolled 25 patients with Rockwood type V acromioclavicular joint dislocations who underwent TACCR using 2 Endobutton (Smith & Nephew Inc...
January 15, 2018: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/29352689/morbidity-and-safety-of-iliac-crest-reference-array-pins-in-navigated-total-hip-arthroplasty-a-prospective-cohort-study
#4
Anton P Lambers, Xiang G Salim, Robert Jennings, Andrew T Bucknill
BACKGROUND: Navigated total hip arthroplasty (THA) can employ intra-osseous pins through a separate incision to secure reference arrays to the iliac crest. This study is the first to investigate the consequences of pin use in THA in vivo. METHODS: A prospective, consecutive series of 43 patients presenting for navigated THA were included. Two temporary 125 × 4 mm Schanz screws were inserted into the iliac crest for the attachment of a reference array. Telephone follow-up occurred at 6 and 12 weeks post-operatively...
December 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29352643/assessment-of-a-source-position-checking-tool-for-the-quality-assurance-of-transfer-tubes-used-in-hdr-192ir-brachytherapy-treatments
#5
O A Awunor
PURPOSE: The determination of source positions before treatment is an essential part of the quality assurance (QA) associated with high dose rate brachytherapy treatments. The purpose of this study was to design and commission a tool to allow the quantification of source positions across multiple transfer tube types. METHODS AND MATERIALS: A bespoke flexi-adapter jig, three transfer tube adapters, and a film piercing pointer were designed and built for source position QA across three transfer tube types-the standard, 6 French, and gynae transfer tubes...
January 15, 2018: Brachytherapy
https://www.readbyqxmd.com/read/29352595/axillary-tumour-burden-in-women-with-one-abnormal-node-on-ultrasound-compared-to-women-with-multiple-abnormal-nodes
#6
S Puri, N Sharma, R G Newcombe, M Kaushik, M Al-Attar, S Pascaline, M Hajaj, M G Wallis, B Elsberger, A Goyal
AIM: To determine if the number of abnormal nodes seen on preoperative axillary ultrasound (AUS) is a predictor of the number of positive nodes at histology for women with needle-biopsy-proven positive nodes. MATERIALS AND METHODS: This prospective multicentre cohort study included consecutive patients with early breast cancer who had needle-biopsy-proven positive nodes on AUS and underwent axillary lymph node dissection (ALND) between October 2015 and July 2016...
January 15, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29352582/a-microfluidic-distributor-combining-minimal-volume-minimal-dispersion-and-minimal-sensitivity-to-clogging
#7
Sander Jespers, Sander Deridder, Gert Desmet
A new type of microfluidic flow distributor (referred to as the mixed mode or MM-distributor) is proposed. Its performance characteristics are determined using computational fluid dynamics (CFD), both in the absence and the presence of clogging, which is an important problem in microfluidic systems. A comparison is made with two existing, well-performing distributor types: the bifurcating (BF) distributor and an optimized diverging distributor, the so-called radially interconnected (RI) distributor. It was found that, in the absence of clogging, the MM-distributor produces only a little more dispersion than the bifurcating (BF) distributor, but much less than the radially interconnected (RI) distributor...
January 12, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29352470/a-laser-optical-method-for-predicting-adulteration-of-clover-honey-bee
#8
A E El-Raie, H E Hassan, A A Abd El-Rahman, R A Shaimaa
The authenticity of honey is great importance for commercial and health reasons. Adulteration of honey bee with cheaper sweetening materials has been used. The objectives of this study were: 1) To evaluate the quality of honey bee according to physicochemical characteristics, 2) To estimate the transmission property of prediction of honey using visible laser technique, and 3) Possibility of adulteration of honey bee according to high transmission intensity of laser beam through Clover honey bee. Helium-neon (He-Ne) laser in the visible light with wavelengths 632...
January 20, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29352461/clinical-and-microbiological-evaluation-of-the-effect-of-lactobacillus-reuteri-in-the-treatment-of-mucositis-and-peri-implantitis-a-triple-blind-randomized-clinical-trial
#9
M Galofré, D Palao, M Vicario, J Nart, D Violant
BACKGROUND AND OBJECTIVE: Oral probiotics appear to improve the treatment of periodontal diseases but there is limited evidence on their efficacy in the treatment of peri-implant diseases. The objective of the present study was to evaluate, clinically and microbiologically, the effect of the oral probiotic, Lactobacillus reuteri Prodentis, as adjuvant to non-surgical mechanical therapy in implants with mucositis or peri-implantitis, placed in patients with a history of periodontal disease...
January 19, 2018: Journal of Periodontal Research
https://www.readbyqxmd.com/read/29352442/laparoscopic-and-endoscopic-cooperative-surgery-versus-endoscopic-submucosal-dissection-for-the-treatment-of-low-risk-tumors-of-the-duodenum
#10
Toshiyasu Ojima, Mikihito Nakamori, Masaki Nakamura, Keiji Hayata, Masahiro Katsuda, Katsunari Takifuji, Hiroki Yamaue
BACKGROUND: There have been no comparative studies of endoscopic submucosal dissection (ESD) and laparoscopic and endoscopic cooperative surgery (LECS) for patients with duodenal tumors regarding surgical outcomes. The aim of this study is to compare the safety and feasibility of short-term surgical outcomes of ESD and LECS for patients with low-risk tumors of the duodenum. METHODS: This was a single-center retrospective study of 68 consecutive patients with low-risk tumors of the duodenum who received surgical treatments...
January 19, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29352436/posterolateral-tibial-plateau-fractures-how-to-buttress-reversed-l-posteromedial-or-the-posterolateral-approach-a-comparative-cadaveric-study
#11
Wich Orapiriyakul, Theerachai Apivatthakakul, Chanakarn Phornphutkul
INTRODUCTION: The selection of a surgical approach for buttressing posterolateral tibial plateau fractures is controversial. OBJECTIVE: This study compared the surgical exposure area between the reversed L posteromedial approach (R-PM) and the posterolateral (PL) approach using the lateral plateau width as a metric. MATERIALS AND METHODS: Twenty lower extremities from fresh frozen cadavers were included. The R-PM approach was used first and the boundary of the posterior tibial cortex exposure was marked with metal pins...
January 19, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29352433/development-and-clinical-application-of-vertebral-metrics-using-a-stereo-vision-system-to-assess-the-spine
#12
Ana Teresa Gabriel, Cláudia Quaresma, Mário Forjaz Secca, Pedro Vieira
The biomechanical changes in the spinal column are considered to be the main responsible for rachialgia. Although radiological techniques use ionizing radiation, they are the most applied tools to assess the biomechanics of the spine. To face this problem, non-invasive techniques must be developed. Vertebral Metrics is an ionizing radiation-free instrument designed to detect the 3D position of each vertebrae in a standing position. Using a stereo vision system combined with low intensity UV light, recognition is achieved with software capable of distinguishing fluorescent marks...
January 20, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29352355/physiological-responses-to-salt-stress-of-salt-adapted-and-directly-salt-nacl-and-nacl-na2so4-mixture-stressed-cyanobacterium-anabaena-fertilissima
#13
Prashant Swapnil, Ashwani K Rai
Soil salinity in nature is generally mixed type; however, most of the studies on salt toxicity are performed with NaCl and little is known about sulfur type of salinity (Na2SO4). Present study discerns the physiologic mechanisms responsible for salt tolerance in salt-adapted Anabaena fertilissima, and responses of directly stressed parent cells to NaCl and NaCl+Na2SO4 mixture. NaCl at 500 mM was lethal to the cyanobacterium, whereas salt-adapted cells grew luxuriantly. Salinity impaired gross photosynthesis, electron transport activities, and respiration in parent cells, but not in the salt-adapted cells, except a marginal increase in PSI activity...
January 19, 2018: Protoplasma
https://www.readbyqxmd.com/read/29352333/long-term-results-of-custom-cementless-stem-total-hip-arthroplasty-performed-in-hip-fusion
#14
Xavier Flecher, Matthieu Ollivier, Pascal Maman, Sébastien Pesenti, Sébastien Parratte, Jean-Noël Argenson
INTRODUCTION: Due to complex anatomical considerations, results of cementless-stem total hip arthroplasty (THA) in hip fusion remain controversial compared with conventional THA. We therefore aimed to analyse 3D anatomy of the fused hip based on pre-operative computed tomography (CT) scans, functional outcomes based on the Harris Hip Score (HHS) and the Hip Disability and Osteoarthritis Outcome Score (HOOS), modifications of hip anatomy based on post-operative standardised radiography, and determine complication rate and long-term survival based on Kaplan-Meier analysis...
January 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29352332/effects-of-continuous-or-intermittent-low-magnitude-high-frequency-vibration-on-fracture-healing-in-sheep
#15
Yanhui Li, Guozhao Liu, Jing Yu, Chen Li, Lei Tan, Baohui Hao, Chao Liu, Junhao Lin, Dong Zhu, Xizheng Zhang
PURPOSE: Vibration therapy has been shown to improve fracture healing. In this study, we investigated the effects of continuous or different intermittent vibration regimens on fracture healing in sheep models on the basis of radiographs, mechanical, and biochemical testing. METHODS: The 63 right-hind metatarsals from 63 sheep (12-month-old) were osteotomized; followed by surgical fixation with a steel plate. Two weeks after the surgery, the sheep with right-hind metatarsal fractures were randomly divided into seven groups (n=9/group): control (no vibration treated), continuous vibration (CV), one, three, five, seven and 14-day intermittent vibration (named IV-1, -3, -5, -7, and -14, respectively) groups, which represented a cycle of the successive n-day vibration and successive n-day break...
January 19, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29352214/handheld-magnetic-probe-with-permanent-magnet-and-hall-sensor-for-identifying-sentinel-lymph-nodes-in-breast-cancer-patients
#16
Masaki Sekino, Akihiro Kuwahata, Tetsu Ookubo, Mikio Shiozawa, Kaichi Ohashi, Miki Kaneko, Itsuro Saito, Yusuke Inoue, Hiroyuki Ohsaki, Hiroyuki Takei, Moriaki Kusakabe
The newly developed radioisotope-free technique based on magnetic nanoparticle detection using a magnetic probe is a promising method for sentinel lymph node biopsy. In this study, a novel handheld magnetic probe with a permanent magnet and magnetic sensor is developed to detect the sentinel lymph nodes in breast cancer patients. An outstanding feature of the probe is the precise positioning of the sensor at the magnetic null point of the magnet, leading to highly sensitive measurements unaffected by the strong ambient magnetic fields of the magnet...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352090/production-of-ophthalmic-acid-using-engineered-escherichia-coli
#17
Tomokazu Ito, Maiko Tokoro, Ran Hori, Hisashi Hemmi, Tohru Yoshimura
Ophthalmic acid (l-γ-glutamyl-l-2-aminobutyryl-glycine, OA) is an analog of glutathione (l-γ-glutamyl-l-cysteinyl-glycine, GSH) in which the cysteine moiety is replaced by l-2-aminobutyrate. OA is a useful peptide for the pharmaceutical and/or food industries. Herein, we report a method for the production of OA using engineered Escherichia coli cells. The yggS-deficient E. coli cells, which lack the highly conserved pyridoxal 5' -phosphate-binding protein YggS and naturally accumulate OA, were selected as the starting strain background...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29352062/critical-role-of-angiographic-acquisition-modality-and-reconstruction-on-morphometric-and-haemodynamic-analysis-of-intracranial-aneurysms
#18
Alexandra Lauric, James E Hippelheuser, Adel M Malek
BACKGROUND: Subtracted 3-D rotational angiography (3DRA) and cone-beam computed tomography angiography (CBCT-A) are often used in assessing cerebral aneurysm shape and haemodynamic profile. We sought to evaluate the effect of imaging modality, reconstruction parameters, and kernel selection on patient-derived aneurysm morphology and computational fluid dynamic (CFD) analysis to assess its potential contribution to inter-study variability. METHODS: Four patients (five aneurysms) underwent concurrent 3DRA followed by high-resolution CBCT-A...
January 19, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29352057/feasibility-complications-morbidity-and-mortality-results-at-6-months-for-aneurysm-treatment-with-the-flow-re-direction-endoluminal-device-report-of-safe-study
#19
Laurent Pierot, Laurent Spelle, Jérôme Berge, Anne-Christine Januel, Denis Herbreteau, Mohamed Aggour, Michel Piotin, Alessandra Biondi, Xavier Barreau, Charbel Mounayer, Chrisanthi Papagiannaki, Jean-Paul Lejeune, Jean-Yves Gauvrit, Vincent Costalat
BACKGROUND AND PURPOSE: Flow diverters are increasingly used for the treatment of intracranial aneurysms. Evaluation of the first devices available for clinical use showed high efficacy of this treatment although safety results were worse compared with coiling or balloon-assisted coiling. The Safety and Efficacy Analysis of FRED Embolic Device in Aneurysm Treatment (SAFE) trial is a single-arm, multicenter, prospective study conducted to precisely analyze the safety and efficacy of the FRED and FRED Jr devices...
January 19, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29352008/incidence-predictors-and-clinical-outcomes-of-residual-stenosis-after-aortic-valve-in-valve
#20
Sabine Bleiziffer, Magdalena Erlebach, Matheus Simonato, Philippe Pibarot, John Webb, Lukas Capek, Stephan Windecker, Isaac George, Jan-Malte Sinning, Eric Horlick, Massimo Napodano, David M Holzhey, Petur Petursson, Alfredo Cerillo, Nikolaos Bonaros, Enrico Ferrari, Mauricio G Cohen, Giselle Baquero, Tara L Jones, Ankur Kalra, Michael J Reardon, Adnan Chhatriwalla, Vasco Gama Ribeiro, Sami Alnasser, Nicolas M Van Mieghem, Christian Jörg Rustenbach, Joachim Schofer, Santiago Garcia, Tobias Zeus, Didier Champagnac, Raffi Bekeredjian, Ran Kornowski, Rüdiger Lange, Danny Dvir
OBJECTIVE: We aimed to analyse the incidence of prosthesis-patient mismatch (PPM) and elevated gradients after aortic valve in valve (ViV), and to evaluate predictors and associations with clinical outcomes of this adverse event. METHODS: A total of 910 aortic ViV patients were investigated. Elevated residual gradients were defined as ≥20 mm Hg. PPM was identified based on the indexed effective orifice area (EOA), measured by echocardiography, and patient body mass index (BMI)...
January 19, 2018: Heart: Official Journal of the British Cardiac Society
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