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https://www.readbyqxmd.com/read/27919246/adjacent-sequences-disclose-potential-for-intra-genomic-dispersal-of-satellite-dna-repeats-and-suggest-a-complex-network-with-transposable-elements
#1
Eva Satović, Tanja Vojvoda Zeljko, Andrea Luchetti, Barbara Mantovani, Miroslav Plohl
BACKGROUND: Satellite DNA (satDNA) sequences are typically arranged as arrays of tandemly repeated monomers. Due to the similarity among monomers, their organizational pattern and abundance, satDNAs are hardly accessible to structural and functional studies and still represent the most obscure genome component. Although many satDNA arrays of diverse length and even single monomers exist in the genome, surprisingly little is known about transition from satDNAs to other sequences. Studying satDNA monomers at junctions and identifying DNA sequences adjacent to them can help to understand the processes that (re)distribute satDNAs and significance that evolution of these sequence elements might have in creating the genomic landscape...
December 6, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27918206/children-and-adolescents-show-altered-visual-working-memory-related-brain-activity-more-than-one-decade-after-arterial-switch-operation-for-d-transposition-of-the-great-arteries
#2
Peter Klaver, Walter Knirsch, Karoline Wurmitzer, David Yoh von Allmen
This pilot study investigated neural correlates of visual working memory using functional magnetic resonance imaging (fMRI) in seven patients more than one decade after neonatal arterial switch operation for surgical correction of d-transposition of the great arteries (d-TGA, aged 10-18 years, 1 female). Compared with age and sex matched healthy controls patients showed similar visual working memory performance and a smaller increase in brain activity in the posterior parietal cortex with higher visual working memory load...
May 2016: Developmental Neuropsychology
https://www.readbyqxmd.com/read/27916797/pseudogenes-and-their-genome-wide-prediction-in-plants
#3
REVIEW
Jin Xiao, Manoj Kumar Sekhwal, Pingchuan Li, Raja Ragupathy, Sylvie Cloutier, Xiue Wang, Frank M You
Pseudogenes are paralogs generated from ancestral functional genes (parents) during genome evolution, which contain critical defects in their sequences, such as lacking a promoter, having a premature stop codon or frameshift mutations. Generally, pseudogenes are functionless, but recent evidence demonstrates that some of them have potential roles in regulation. The majority of pseudogenes are generated from functional progenitor genes either by gene duplication (duplicated pseudogenes) or retro-transposition (processed pseudogenes)...
November 28, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27916576/extensor-reconstruction-of-the-knee-using-the-fibular-transposition-technique-after-proximal-tibial-resection
#4
Hiroyuki Kawashima, Akira Ogose, Tetsuo Hotta, Takashi Ariizumi, Tetsuro Yamagishi, Naoto Endo
BACKGROUND: Reconstruction of the extensor mechanism after resection of the proximal tibia is challenging, and several surgical procedures are available. The purpose of this study was to determine the outcome of the fibular transposition technique for reconstruction of the extensor mechanism of the knee after proximal tibial resection. METHODS: We retrospectively reviewed five consecutive patients who underwent resection of the proximal tibia with prosthetic reconstruction and reconstruction of the extensor using fibular transposition between 1997 and 2011...
December 1, 2016: Knee
https://www.readbyqxmd.com/read/27913727/regulated-complex-assembly-safeguards-the-fidelity-of-sleeping-beauty-transposition
#5
Yongming Wang, Diana Pryputniewicz-Dobrinska, Enikö Éva Nagy, Christopher D Kaufman, Manvendra Singh, Steve Yant, Jichang Wang, Anna Dalda, Mark A Kay, Zoltán Ivics, Zsuzsanna Izsvák
The functional relevance of the inverted repeat structure (IR/DR) in a subgroup of the Tc1/mariner superfamily of transposons has been enigmatic. In contrast to mariner transposition, where a topological filter suppresses single-ended reactions, the IR/DR orchestrates a regulatory mechanism to enforce synapsis of the transposon ends before cleavage by the transposase occurs. This ordered assembly process shepherds primary transposase binding to the inner 12DRs (where cleavage does not occur), followed by capture of the 12DR of the other transposon end...
December 1, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27909969/subjective-ulnar-nerve-dysfunction-commonly-following-open-reduction-internal-fixation-orif-of-distal-humeral-fractures-and-in-situ-decompression-of-the-ulnar-nerve
#6
Birgitta Svernlöv, Jens Nestorson, Lars Adolfsson
The aim of this retrospective study was to investigate the frequency of persistent ulnar affection in patients who underwent open reduction and internal fixation (ORIF) of distal humeral fractures without ulnar nerve transposition or mobilisation. Eighty-two patients (53 women), mean age 62 years, were, at a mean of 48 months, reviewed through medical records and a subjective evaluation form concerning ulnar nerve problems. Ulnar nerve affliction, in most cases regarded as mild, was experienced by 22 patients (27%; 14 women) and significantly associated with multiple surgeries...
December 1, 2016: Strategies in Trauma and Limb Reconstruction
https://www.readbyqxmd.com/read/27908766/mechanisms-and-predictors-of-recurrent-tachycardia-following-catheter-ablation-for-d-transposition-of-the-great-arteries-after-the-mustard-or-senning-operation
#7
Roberto G Gallotti, Himani Madnawat, Kevin M Shannon, Jamil A Aboulhosn, Farnoosh Nik-Ahd, Jeremy P Moore
BACKGROUND: The Senning and Mustard operations for DTGA are associated with a heightened risk for supraventricular tachycardia. Catheter ablation has been shown to be acutely successful for achieving rhythm control in this population, but the mechanisms of recurrence are ill-defined. OBJECTIVES: We hypothesized that the type and degree of recurrence would vary by the surgical technique employed. METHODS: All consecutive catheter ablation procedures for DTGA after Mustard/Senning operation between 2004 and 2016 at a single center were reviewed...
November 28, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27899587/temporal-self-regulation-of-transposition-through-host-independent-transposase-rodlet-formation
#8
Lauren E Woodard, Laura M Downes, Yi-Chien Lee, Aparna Kaja, Eyuel S Terefe, Matthew H Wilson
Transposons are highly abundant in eukaryotic genomes, but their mobilization must be finely tuned to maintain host organism fitness and allow for transposon propagation. Forty percent of the human genome is comprised of transposable element sequences, and the most abundant cut-and-paste transposons are from the hAT superfamily. We found that the hAT transposase TcBuster from Tribolium castaneum formed filamentous structures, or rodlets, in human tissue culture cells, after gene transfer to adult mice, and ex vivo in cell-free conditions, indicating that host co-factors or cellular structures were not required for rodlet formation...
November 28, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27896459/gluteal-transposition-flap-without-donor-site-scar-for-closing-a-perineal-defect-after-abdominoperineal-resection
#9
R D Blok, O Lapid, W A Bemelman, P J Tanis
No abstract text is available yet for this article.
November 28, 2016: Techniques in Coloproctology
https://www.readbyqxmd.com/read/27894526/simplifying-optimal-tooth-size-calculations-and-communications-between-practitioners
#10
Daniel S German, Stephen J Chu, Michelle L Furlong, Alpesh Patel
The purpose of this article is to present a simple method for determining the optimal sizes of anterior teeth. This is needed because of the frequency of anomalous and missing maxillary lateral incisors. In addition to anomalous and missing incisors, other factors that create challenges for the dentist and orthodontist when designing an esthetic and occlusally sound dentition are attrition, trauma, transposition, erosion, and caries. Optimal esthetics and occlusion require correctly sized teeth in proportion to themselves and the other teeth...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27894525/canine-lateral-incisor-transposition-controlling-root-resorption-with-a-bone-anchored-t-loop-retraction
#11
Yu Lin Hsu, Chris H Chang, W Eugene Roberts
A 12-year-old girl presented with a Class II Division 1 malocclusion, complicated by a complete transposition of the maxillary left canine into the position normally occupied by the left lateral incisor. Dental and medical histories were noncontributory. Brackets were bonded on all maxillary teeth, from first molar to first molar, except for the left lateral incisor. Because the lateral incisor was not engaged on the archwire, the tooth was free to physiologically move out of the path of canine root movement...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27893159/modified-technique-for-common-carotid-artery-transposition-in-standing-horses
#12
Heidi Tapio, David Argüelles, Luis A Gracia-Calvo, Marja Raekallio
OBJECTIVE: To describe a modified technique for permanent translocation of the common carotid artery (CCA) to a subcutaneous position in standing horses. STUDY DESIGN: Experimental study. ANIMALS: Healthy adult Standardbred and Warmblood horses (n = 8). METHODS: Surgery was performed with the horses standing under sedation and with local anesthesia. A combination of previously described techniques was used modifying the approach and closure of the incision...
November 28, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27892741/impact-of-prenatal-diagnosis-of-transposition-of-the-great-arteries-on-postnatal-outcome
#13
P Domínguez-Manzano, I Herraiz, A Mendoza, J M Aguilar, D Escribano, B Toral, E Gómez-Montes, A Galindo
OBJECTIVE: To assess the impact of prenatal diagnosis of transposition of the great arteries (TGA) on postnatal outcome. METHODS: 154 patients with either simple (n = 101) or complex forms (n = 53) of TGA, diagnosed prenatally (G1, n = 88) or postnatally (G2, n = 66), who were admitted and underwent surgical correction in our centre between 1998 and 2014, were analysed. RESULTS: Prostaglandin E1 (PgE1) infusion and balloon atrial septostomy (BAS) were performed in the first 48 hours after birth more commonly in G1...
November 28, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27889285/aberrant-left-vertebral-artery-transposition-and-concomitant-carotid-subclavian-bypass-for-treatment-of-acute-intramural-hematoma-with-thoracic-endovascular-aortic-repair
#14
Sheila N Blumberg, Mark A Adelman, Thomas S Maldonado
Aberrant left vertebral artery (LVA) origin off the aortic arch is an uncommon anatomic variant. Treatment of the thoracic aortic pathology that necessitates its coverage has not been described. We present a patient with an acute intramural hematoma with a dominant LVA originating from the aortic arch. A LVA-to-carotid artery transposition with shunt placement, carotid-to-subclavian bypass, and thoracic endovascular aortic repair were performed. The patient recovered uneventfully, without any evidence of stroke...
November 23, 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27888554/a-high-resolution-genetic-map-of-the-cereal-crown-rot-pathogen-fusarium-pseudograminearum-provides-a-near-complete-genome-assembly
#15
Donald M Gardiner, Aurelie H Benfield, Jiri Stiller, Stuart Stephen, Karen Aitken, Chunji Liu, Kemal Kazan
Fusarium pseudograminearum is an important pathogen of wheat and barley, particularly in semi-arid environments. Previous genome assemblies for this organism were based entirely on short read data and are highly fragmented. In this work, a genetic map of F. pseudograminearum has been constructed for the first time based on a mapping population of 178 individuals. The genetic map, along with long read scaffolding of a short read-based genome assembly, was used to give a near complete assembly of the four F. pseudograminearum chromosomes...
November 26, 2016: Molecular Plant Pathology
https://www.readbyqxmd.com/read/27885445/limited-ventricular-preload-is-the-main-reason-for-reduced-stress-reserve-after-atrial-baffle-repair
#16
Andreas Eicken, Julia Michel, Alfred Hager, Daniel Tanase, Harald Kaemmerer, Julie Cleuziou, John Hess, Peter Ewert
The atrial baffle repair (ABR) significantly improved the fate of patients with transposition of the great arteries (TGA). However, these patients show impaired exercise tolerance and some present severe decline of systemic ventricular function. Intrinsic myocardial weakness, low heart rate response to exercise and diastolic filling impairment are discussed to be causative. Forty-nine long-term survivors with TGA (median age 23.7 year) after ABR were catheterized with measured oxygen consumption in four conditions (baseline, volume, atrial pacing, dobutamine) and the results were compared to 10 normal controls...
November 24, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27881809/situs-inversus-totalis-single-stage-anatomic-repair-of-complex-congenital-heart-disease
#17
Andrew C Chatzis, Alexandros J Tsoutsinos, Meletios A Kanakis, Constantinos A Contrafouris, Spyros Rammos, Fotios A Mitropoulos
Transposition of the great arteries occurs rarely in patients with mirror image dextrocardia and situs inversus, while the combination with severe coarctation of the descending aorta (CoA) makes the anatomy even more unusual. Therefore, it is not surprising that a case with such unusual and complicated anatomy presents unique problems when a primary definitive correction is attempted. We report a patient with situs inversus totalis and complex congenital heart disease including transposition of the great arteries and severe CoA who underwent successful complete, single-stage, anatomic correction...
November 23, 2016: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/27878634/relationship-between-habitual-exercise-and-performance-on-cardiopulmonary-exercise-testing-differs-between-children-with-single-and-biventricular-circulations
#18
Michael L O'Byrne, Sanyukta Desai, Megan Lane, Michael McBride, Stephen Paridon, Elizabeth Goldmuntz
Increasing habitual exercise has been associated with improved cardiopulmonary exercise testing (CPET) performance, specifically maximal oxygen consumption in children with operatively corrected congenital heart disease. This has not been studied in children following Fontan palliation, a population in whom CPET performance is dramatically diminished. A single-center cross-sectional study with prospective and retrospective data collection was performed that assessed habitual exercise preceding a clinically indicated CPET in children and adolescents with Fontan palliation, transposition of the great arteries following arterial switch operation (TGA), and normal cardiac anatomy without prior operation...
November 23, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27873373/cardiac-output-and-blood-flow-redistribution-in-the-fetus-with-d-loop-transposition-of-the-great-arteries-and-intact-ventricular-septum-insights-into-the-pathophysiology
#19
Max E Godfrey, Kevin G Friedman, Monika Drogosz, Abraham M Rudolph, Wayne Tworetzky
OBJECTIVES: Although the postnatal physiology of D-loop transposition of the great arteries with intact ventricular septum (DTGA-IVS) is well established, little is known about fetal DTGA-IVS. In the normal fetus, the pulmonary valve (PV) is larger than the aortic valve (AoV), there is exclusive right to left flow at the foramen ovale (FO) and ductus arteriosus (DA), and the left ventricle (LV) ejects 40% of combined ventricular output (CVO) through the aorta, primarily to the brain. In DTGA-IVS, the LV ejects O2 -rich blood to the pulmonary artery, theoretically leading to pulmonary vasodilation, increased branch pulmonary arterial flow and reduced DA flow...
November 22, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27873336/a-comparison-of-two-surgical-techniques-for-the-second-stage-of-brachiobasilic-arteriovenous-fistula-creation
#20
Raffaella Mauro, Rodolfo Pini, Claudio Bianchini Massoni, Gabriele Donati, Gianluca Faggioli, Mauro Gargiulo, Antonio Freyrie, Gaetano La Manna, Andrea Stella
Two-stage transposed brachiobasilic arteriovenous fistula is a common procedure after brachiobasilic fistula (BBF) creation. Different techniques can be used for basilic vein transposition but few comparative literature reports are available. The aim of our study was to compare two different techniques for basilic vein transposition. The first maintains the BBF anastomosis and the basilic vein is placed in a subcutaneous pocket (BBAVF). The second transects the basilic vein at the BBF anastomosis and tunnels it superficially, with a new BBF in the brachial artery (BBAVFTn)...
November 21, 2016: Artificial Organs
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