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https://www.readbyqxmd.com/read/29351704/safety-of-cold-snare-polypectomy-for-duodenal-adenomas-in-familial-adenomatous-polyposis-a-prospective-exploratory-study
#1
Kenta Hamada, Yoji Takeuchi, Hideki Ishikawa, Yasumasa Ezoe, Masamichi Arao, Sho Suzuki, Taro Iwatsubo, Minoru Kato, Yusuke Tonai, Satoki Shichijo, Yasushi Yamasaki, Noriko Matsuura, Hiroko Nakahira, Takashi Kanesaka, Sachiko Yamamoto, Tomofumi Akasaka, Noboru Hanaoka, Koji Higashino, Noriya Uedo, Ryu Ishihara, Hiroyuki Okada, Hiroyasu Iishi
BACKGROUND:  Cold snare polypectomy (CSP) to remove multiple duodenal adenomas (MDAs) in patients with familial adenomatous polyposis (FAP) could be an effective and less invasive method than more extensive surgery. The aim of the present study was to determine the safety of this procedure. METHODS:  This prospective exploratory study included 10 consecutive patients with FAP and MDAs who underwent CSP for as many as 50 duodenal adenomas. The primary outcome was the incidence of severe adverse events...
January 19, 2018: Endoscopy
https://www.readbyqxmd.com/read/29351689/microvascular-decompression-for-patients-with-hemifacial-spasm-associated-with-common-trunk-anomaly-of-the-cerebellar-arteries-case-study-and-review-of-literature
#2
Ehab El Refaee, Christian Rosenstengel, Joerg Baldauf, Dirk T Pillich, Marc Matthes, Henry W S Schroeder
BACKGROUND: Few previous studies have described the origin of both anterior and posterior inferior cerebellar arteries from one vessel as a common trunk anomaly. No previous studies have clearly described the aforementioned anomaly depending on intraoperative endoscopic visualization. OBJECTIVE: To evaluate the association of a common trunk anomaly with hemifacial spasm, which makes microvascular decompression more challenging. METHODS: All patients with common trunk anomaly associated with hemifacial spasm who received surgical treatment between 2006 and 2015 in our institution were identified in our prospectively collected database...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351683/novel-bilateral-extracavitary-approach-for-thoracolumbar-decompression
#3
Jeffrey P Mullin, Alvin Y Chan, Emily Bennett, Michael P Steinmetz
BACKGROUND: Bilateral extracavitary approach (BECA) is an option for decompression cases that require a more extended ventral approach. The clear advantage is increased accessibility to the most ventral aspects of the spine from a bilateral perspective. OBJECTIVE: To assess the safety and efficacy of thoracic and thoracolumbar decompression and/or reconstruction from BECA. METHODS: A retrospective chart review was performed reviewing all patients who underwent BECA for thoracolumbar decompression from 2003 to 2012 at our institution...
February 1, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29351383/muscular-performance-and-body-composition-changes-following-multi-versus-combined-multi-and-single-joint-exercises-in-aging-adults
#4
Ewertton de Souza Bezerra, Antônio Renato Pereira Moro, Lucas Bet da Rosa Orssatto, Mariane Eichendorf da Silva, Jeffrey Michael Willardson, Roberto Simão
The aim of the present study was to compare muscular performance and body composition changes following low volume resistance training programs consisting of multi-joint (MJ) exercises (cable chest press and seated row)versus a combination of multi- and single-joint (MJ+SJ) exercises (cable chest press, seated row, biceps curl, and triceps extension). Thirty untrained healthy aging adults were randomly assigned to three groups: MJ (n=11), MJ+SJ (n=11), and Control (n=8). Twelve-repetition maximums (12-RM) for the cable chest press and seated row; localized muscular endurance for the elbow flexors handgrip strength; and body composition were assessed before and after the 8-week training program...
January 19, 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/29351359/cyr61-ccn1-regulates-sclerostin-levels-and-bone-maintenance
#5
Gexin Zhao, Bau-Lin Huang, Diana Rigueur, Weiguang Wang, Chimay Bhoot, Kemberly R Charles, Jongseung Baek, Subburaman Mohan, Jie Jiang, Karen M Lyons
CYR61/CCN1 is a matricellular protein that resides in the extracellular matrix, but serves regulatory rather than structural roles. CYR61/CCN1 is found in mineralized tissues and has been shown to influence bone healing in vivo and osteogenic differentiation in vitro. In this study we generated Cyr61 bone specific knockout mice to examine the physiological role of CYR61/CCN1 in bone development and maintenance in vivo. Extensive analysis of Cyr61 conditional knockout mice showed a significant decrease in both trabecular and cortical bone mass as compared to WT littermate...
January 19, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29351353/the-contributions-of-phonological-awareness-alphabet-knowledge-and-letter-writing-to-name-writing-in-children-with-specific-language-impairment-and-typically-developing-children
#6
Stacey L Pavelko, R Jane Lieberman, Jamie Schwartz, Debbie Hahs-Vaughn
Purpose: Name writing is one aspect of emergent writing that has been used to understand emergent literacy development. Name-writing skills and the relationship of name writing to other emergent literacy skills have not been studied extensively in children with specific language impairment (SLI). Children with SLI consistently demonstrate delays in phonological awareness (PA), alphabet knowledge (AK), print awareness, and emergent writing. The purpose of this study was to examine the contributions of PA, AK, and letter writing to name writing in children with SLI and typically developing (TD) children...
January 19, 2018: American Journal of Speech-language Pathology
https://www.readbyqxmd.com/read/29351336/chemotactic-drift-speed-for-bacterial-motility-pattern-with-two-alternating-turning-events
#7
Evgeniya V Pankratova, Alena I Kalyakulina, Mikhail I Krivonosov, Sergei V Denisov, Katja M Taute, Vasily Yu Zaburdaev
Bacterial chemotaxis is one of the most extensively studied adaptive responses in cells. Many bacteria are able to bias their apparently random motion to produce a drift in the direction of the increasing chemoattractant concentration. It has been recognized that the particular motility pattern employed by moving bacteria has a direct impact on the efficiency of chemotaxis. The linear theory of chemotaxis pioneered by de Gennes allows for calculation of the drift velocity in small gradients for bacteria with basic motility patterns...
2018: PloS One
https://www.readbyqxmd.com/read/29351322/influence-of-multiplicative-stochastic-variation-on-translational-elongation-rates
#8
Sandip Datta, Brian Seed
Experimental data indicate that stochastic effects exerted at the level of translation contribute substantially to the variation in abundance of proteins expressed at moderate to high levels. This study analyzes the theoretical consequences of fluctuations in residue-specific elongation rates during translation. A simple analytical framework shows that rate variation during elongation gives rise to protein production rates that consist of sums of products of random variables. Simulations show that because the contribution to total variation of products of random variables greatly exceeds that of sums of random variables, the overall distribution exhibits approximately log-normal behavior...
2018: PloS One
https://www.readbyqxmd.com/read/29351302/extension-of-the-viral-ecology-in-humans-using-viral-profile-hidden-markov-models
#9
Zurab Bzhalava, Emilie Hultin, Joakim Dillner
When human samples are sequenced, many assembled contigs are "unknown", as conventional alignments find no similarity to known sequences. Hidden Markov models (HMM) exploit the positions of specific nucleotides in protein-encoding codons in various microbes. The algorithm HMMER3 implements HMM using a reference set of sequences encoding viral proteins, "vFam". We used HMMER3 analysis of "unknown" human sample-derived sequences and identified 510 contigs distantly related to viruses (Anelloviridae (n = 1), Baculoviridae (n = 34), Circoviridae (n = 35), Caulimoviridae (n = 3), Closteroviridae (n = 5), Geminiviridae (n = 21), Herpesviridae (n = 10), Iridoviridae (n = 12), Marseillevirus (n = 26), Mimiviridae (n = 80), Phycodnaviridae (n = 165), Poxviridae (n = 23), Retroviridae (n = 6) and 89 contigs related to described viruses not yet assigned to any taxonomic family)...
2018: PloS One
https://www.readbyqxmd.com/read/29351268/use-of-different-methods-of-intramedullary-nailing-for-fixation-of-distal-radius-fractures-a-retrospective-analysis-of-clinical-and-radiological-outcomes
#10
Murat Çalbıyık, Deniz Ipek
BACKGROUND We aimed to evaluate the clinical and radiologic outcomes of using Sonoma WRx versus Micronail intramedullary nailing for the fixation of distal radius fractures. MATERIAL AND METHODS A total of 68 patients with primarily extra-articular and simple intra-articular fractures of the distal radius who underwent intramedullary distal radius fixation using Sonoma WRx (n=39) or Micronail (n=29) intramedullary nails were enrolled in the study. The clinical outcome measures included the range of motion (ROM), visual analog scale (VAS), functional outcomes (patient-reported Disabilities of the Arm, Shoulder and Hand [DASH] score and clinician-based Gartland-Werley score), radiographic scores (Stewart score), and parameters related to the quality of radiographic reduction and complications (radial inclination, volar tilt, radial height, and radio-ulnar variance)...
January 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29351263/twenty-nine-new-limonoids-with-skeletal-diversity-from-the-mangrove-plant-xylocarpus-moluccensis
#11
Jianzhi Zhang, Wanshan Li, Yiguo Dai, Li Shen, Jun Wu
Twenty-nine new limonoids-named xylomolins A₁-A₇, B₁-B₂, C₁-C₂, D-F, G₁-G₅, H-I, J₁-J₂, K₁-K₂, L₁-L₂, and M-N, were isolated from the seeds of the mangrove plant, Xylocarpus moluccensis. Compounds 1-13 are mexicanolides with one double bond or two conjugated double bonds, while 14 belongs to a small group of mexicanolides with an oxygen bridge between C1 and C8. Compounds 15-19 are khayanolides containing a Δ8,14 double bond, whereas 20 and 21 are rare khayanolides containing a Δ14,15 double bond and Δ8,9, Δ14,15 conjugated double bonds, respectively...
January 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29351255/game-theoretical-design-of-an-adaptive-distributed-dissemination-protocol-for-vanets
#12
Cristhian Iza-Paredes, Ahmad Mohamad Mezher, Mónica Aguilar Igartua, Jordi Forné
Road safety applications envisaged for Vehicular Ad Hoc Networks (VANETs) depend largely on the dissemination of warning messages to deliver information to concerned vehicles. The intended applications, as well as some inherent VANET characteristics, make data dissemination an essential service and a challenging task in this kind of networks. This work lays out a decentralized stochastic solution for the data dissemination problem through two game-theoretical mechanisms. Given the non-stationarity induced by a highly dynamic topology, diverse network densities, and intermittent connectivity, a solution for the formulated game requires an adaptive procedure able to exploit the environment changes...
January 19, 2018: Sensors
https://www.readbyqxmd.com/read/29351223/a-novel-walking-detection-and-step-counting-algorithm-using-unconstrained-smartphones
#13
Xiaomin Kang, Baoqi Huang, Guodong Qi
Recently, with the development of artificial intelligence technologies and the popularity of mobile devices, walking detection and step counting have gained much attention since they play an important role in the fields of equipment positioning, saving energy, behavior recognition, etc. In this paper, a novel algorithm is proposed to simultaneously detect walking motion and count steps through unconstrained smartphones in the sense that the smartphone placement is not only arbitrary but also alterable. On account of the periodicity of the walking motion and sensitivity of gyroscopes, the proposed algorithm extracts the frequency domain features from three-dimensional (3D) angular velocities of a smartphone through FFT (fast Fourier transform) and identifies whether its holder is walking or not irrespective of its placement...
January 19, 2018: Sensors
https://www.readbyqxmd.com/read/29351207/diabetic-retinopathy-screening-a-systematic-review-on-patients-non-attendance
#14
REVIEW
Rahima Muhammad Kashim, Paul Newton, Omorogieva Ojo
Diabetic Retinopathy is a microvascular complication of diabetes, that can go undetected and unnoticed until irreversible damage and even blindness has occurred. Effective screening for diabetic retinopathy has been proven to reduce the risk of sight loss. The National Health Service (NHS) which provides healthcare for all UK citizens, implemented systematic retinal screening for diabetic retinopathy in England in 2003, with the aim of identifying and treating all patients with sight threatening retinopathy...
January 19, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29351204/mtor-cross-talk-in-cancer-and-potential-for-combination-therapy
#15
REVIEW
Fabiana Conciatori, Ludovica Ciuffreda, Chiara Bazzichetto, Italia Falcone, Sara Pilotto, Emilio Bria, Francesco Cognetti, Michele Milella
The mammalian Target of Rapamycin (mTOR) pathway plays an essential role in sensing and integrating a variety of exogenous cues to regulate cellular growth and metabolism, in both physiological and pathological conditions. mTOR functions through two functionally and structurally distinct multi-component complexes, mTORC1 and mTORC2, which interact with each other and with several elements of other signaling pathways. In the past few years, many new insights into mTOR function and regulation have been gained and extensive genetic and pharmacological studies in mice have enhanced our understanding of how mTOR dysfunction contributes to several diseases, including cancer...
January 19, 2018: Cancers
https://www.readbyqxmd.com/read/29351176/technological-complexity-and-emergence-of-the-entanglement
#16
Thomas R Clancy
As systems evolve over time, their natural tendency is to become increasingly more complex. Studies in the field of complex systems have generated new perspectives on the application of management strategies in health systems. Much of this research appears as a natural extension of the cross-disciplinary field of systems theory. This article is the 3rd in a series of articles that focus on why technological complexity is increasing and strategies nurse administrators can use to successfully implement change in the face of it...
February 2018: Journal of Nursing Administration
https://www.readbyqxmd.com/read/29351100/sudden-unexpected-death-from-unusually-large-primary-cardiac-b-cell-lymphoma
#17
Julius Tikka, Samuli Vaittinen, Lasse Pakanen, Philippe Lunetta
Primary cardiac lymphomas represent approximately 1% to 2% of primary cardiac neoplasms and 5% of malignant cardiac neoplasms. Here we present a case of sudden unexpected death of a middle-aged male resulting from an unusually large cardiac B-cell lymphoma. The neoplasm infiltrated the myocardium of the right atrium and ventricle and, to a lesser extent, the wall of the left atrium and pulmonary trunk. Extensive infiltration of the heart by the primary cardiac lymphoma, combined with the complete lack of symptoms, makes this case unusual...
January 18, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29351089/aggressive-variants-of-papillary-thyroid-carcinoma-hobnail-tall-cell-columnar-and-solid
#18
Meryl C Nath, Lori A Erickson
Papillary thyroid carcinomas are the most common endocrine cancer and are usually associated with good survival. However, some variants of papillary thyroid carcinomas may behave more aggressively than classic papillary thyroid carcinomas. The tall cell variant of papillary thyroid carcinoma is the most common aggressive variant of papillary thyroid carcinoma. The aggressive behavior has been ascribed to the histologic subtype and/or to the clinicopathologic features, an issue that remains controversial. The columnar variant of papillary thyroid carcinoma can be aggressive, particularly in older patients, with larger tumors showing a diffusely infiltrative growth pattern and extrathyroidal extension...
January 18, 2018: Advances in Anatomic Pathology
https://www.readbyqxmd.com/read/29351051/voluntary-ambulation-using-voluntary-upper-limb-muscle-activity-and-hybrid-assistive-limb%C3%A2-hal%C3%A2-in-a-patient-with-complete-paraplegia-due-to-chronic-spinal-cord-injury-a-case-report
#19
Yukiyo Shimizu, Hideki Kadone, Shigeki Kubota, Kenji Suzuki, Kousaku Saotome, Tomoyuki Ueno, Tetsuya Abe, Aiki Marushima, Hiroki Watanabe, Ayumu Endo, Kazue Tsurumi, Ryu Ishimoto, Akira Matsushita, Masao Koda, Akira Matsumura, Yoshiyuki Sankai, Yasushi Hada, Masashi Yamazaki
CONTEXT: We sought to describe our experience with the Hybrid Assistive Limb® (HAL®) for active knee extension and voluntary ambulation with remaining muscle activity in a patient with complete paraplegia after spinal cord injury. FINDINGS: A 30-year-old man with complete paraplegia used the HAL® for 1 month (10 sessions) using his remaining muscle activity, including hip flexor and upper limb activity. Electromyography was used to evaluate muscle activity of the gluteus maximus, tensor fascia lata, quadriceps femoris, and hamstring muscles in synchronization with the Vicon motion capture system...
January 19, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29350922/computing-curvature-sensitivity-of-biomolecules-in-membranes-by-simulated-buckling
#20
Federico Elias-Wolff, Martin Lindén, Alexander P Lyubartsev, Erik G Brandt
Membrane curvature sensing, where the binding free energies of membrane-associated molecules depend on the local membrane curvature, is a key factor to modulate and maintain the shape and organization of cell membranes. However, the microscopic mechanisms are not well understood, partly due to absence of efficient simulation methods. Here, we describe a method to compute the curvature dependence of the binding free energy of a membrane-associated probe molecule that interacts with a buckled membrane, which has been created by lateral compression of a flat bilayer patch...
January 19, 2018: Journal of Chemical Theory and Computation
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