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Functional reconstruction

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https://www.readbyqxmd.com/read/28926380/osseointegrated-transtibial-implants-in-patients-with-peripheral-vascular-disease-a-multicenter-case-series-of-5-patients-with-1-year-follow-up
#1
Robin Atallah, Jiao Jiao Li, William Lu, Ruud Leijendekkers, Jan Paul Frölke, Munjed Al Muderis
BACKGROUND: Osseointegration is an alternative treatment for amputees who are unable to wear or have difficulty wearing a socket prosthesis. Although the majority of limb amputations are due to vascular disease, such amputations have been perceived as a contraindication to osseointegration surgery. We report the outcomes of osseointegrated reconstruction in a series of 5 patients with limb amputation due to peripheral vascular disease. METHODS: Five patients with transtibial amputation and a history of peripheral vascular disease who received an osseointegration implant from 2014 to 2015 were followed for 12 months...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28925086/optimizing-hepatic-venous-outflow-reconstruction-for-hepatic-vein-stenosis-with-indwelling-stent-in-living-donor-liver-retransplantation
#2
Takanobu Shigeta, Seisuke Sakamoto, Kengo Sasaki, Hajime Uchida, Soichi Narumoto, Akinari Fukuda, Mureo Kasahara
The patient was a boy of 7 years and 5 months of age, who underwent LDLT for acute liver failure at 10 months of age. HV stent placement was performed 8 months after LDLT because of intractable HV stenosis. At 7 years of age, his liver function deteriorated due to chronic rejection. The patient therefore underwent living donor liver retransplantation from his father. The HV was transected with the stent in situ. The IVC was resected due to stenosis. The pericardial cavity was opened and detached around the IVC to elongate the IVC...
September 18, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28924155/distinguishing-faceted-oxide-nanocrystals-with-17-o-solid-state-nmr-spectroscopy
#3
Yuhong Li, Xin-Ping Wu, Ningxin Jiang, Ming Lin, Li Shen, Haicheng Sun, Yongzheng Wang, Meng Wang, Xiaokang Ke, Zhiwu Yu, Fei Gao, Lin Dong, Xuefeng Guo, Wenhua Hou, Weiping Ding, Xue-Qing Gong, Clare P Grey, Luming Peng
Facet engineering of oxide nanocrystals represents a powerful method for generating diverse properties for practical and innovative applications. Therefore, it is crucial to determine the nature of the exposed facets of oxides in order to develop the facet/morphology-property relationships and rationally design nanostructures with desired properties. Despite the extensive applications of electron microscopy for visualizing the facet structure of nanocrystals, the volumes sampled by such techniques are very small and may not be representative of the whole sample...
September 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28923964/repeat-e-anchors-xist-rna-to-the-inactive-x-chromosomal-compartment-through-cdkn1a-interacting-protein-ciz1
#4
Hongjae Sunwoo, David Colognori, John E Froberg, Yesu Jeon, Jeannie T Lee
X chromosome inactivation is an epigenetic dosage compensation mechanism in female mammals driven by the long noncoding RNA, Xist. Although recent genomic and proteomic approaches have provided a more global view of Xist's function, how Xist RNA localizes to the inactive X chromosome (Xi) and spreads in cis remains unclear. Here, we report that the CDKN1-interacting zinc finger protein CIZ1 is critical for localization of Xist RNA to the Xi chromosome territory. Stochastic optical reconstruction microscopy (STORM) shows a tight association of CIZ1 with Xist RNA at the single-molecule level...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923310/factors-associated-with-specific-diagnostic-and-statistical-manual-of-mental-disorders-fourth-edition-sexual-dysfunctions-in-breast-cancer-survivors-a-study-of-patients-and-their-partners
#5
Susanna B Hummel, Daniela E E Hahn, Jacques J D M van Lankveld, Hester S A Oldenburg, Eva Broomans, Neil K Aaronson
BACKGROUND: Many women develop sexual problems after breast cancer (BC) treatment. Little is known about BC survivors with a Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) sexual dysfunction and their partners, and the factors associated with their sexual functioning. AIM: To evaluate (i) patient-related and clinical factors associated with (a) specific DSM-IV sexual dysfunctions and (b) level of sexual functioning and sexual distress as reported by BC survivors and (ii) the association between the sexual functioning of BC survivors and that of their partners...
September 8, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28923276/rapid-whole-brain-resting-state-fmri-at-3%C3%A2-tesla-efficiency-optimized-three-dimensional-epi-versus-repetition-time-matched-simultaneous-multi-slice-epi
#6
Rüdiger Stirnberg, Willem Huijbers, Daniel Brenner, Benedikt A Poser, Monique Breteler, Tony Stöcker
State-of-the-art simultaneous-multi-slice (SMS-)EPI and 3D-EPI share several properties that benefit functional MRI acquisition. Both sequences employ equivalent parallel imaging undersampling with controlled aliasing to achieve high temporal sampling rates. As a volumetric imaging sequence, 3D-EPI offers additional means of acceleration complementary to 2D-CAIPIRINHA sampling, such as fast water excitation and elliptical sampling. We performed an application-oriented comparison between a tailored, six-fold CAIPIRINHA-accelerated 3D-EPI protocol at 530 ms temporal and 2...
September 15, 2017: NeuroImage
https://www.readbyqxmd.com/read/28923001/a-molecular-view-of-the-normal-human-thyroid-structure-and-function-reconstructed-from-its-reference-transcriptome-map
#7
Lorenza Vitale, Allison Piovesan, Francesca Antonaros, Pierluigi Strippoli, Maria Chiara Pelleri, Maria Caracausi
BACKGROUND: The thyroid is the earliest endocrine structure to appear during human development, and thyroid hormones are necessary for proper organism development, in particular for the nervous system and heart, normal growth and skeletal maturation. To date a quantitative, validated transcriptional atlas of the whole normal human thyroid does not exist and the availability of a detailed expression map might be an excellent occasion to investigate the many features of the thyroid transcriptome...
September 18, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28922423/proprioception-in-patients-with-posterior-cruciate-ligament-tears-a-meta-analysis-comparison-of-reconstructed-and-contralateral-normal-knees
#8
Jung-Ro Yoon, Dae-Hee Lee, Seung-Nam Ko, Young-Soo Shin
Posterior cruciate ligament (PCL) reconstruction for patients with PCL insufficiency has been associated with postoperative improvements in proprioceptive function due to mechanoreceptor regeneration. However, it is unclear whether reconstructed PCL or contralateral normal knees have better proprioceptive function outcomes. This meta-analysis was designed to compare the proprioceptive function of reconstructed PCL or contralateral normal knees in patients with PCL insufficiency. All studies that compared proprioceptive function, as assessed with threshold to detect passive movement (TTDPM) or joint position sense (JPS) in PCL reconstructed or contralateral normal knees were included...
2017: PloS One
https://www.readbyqxmd.com/read/28922325/metacarpal-like-hand-classification-and-treatment-guidelines-for-microsurgical-reconstruction-with-toe-transplantation
#9
Fu-Chan Wei, Nidal F Al Deek, Yu-Te Lin, Chung-Chen Hsu, Cheng-Hung Lin
The metacarpal-like hand is a severe hand injury, never addressed before. It describes a hand that lost a significant degree of prehension through a wide array of amputations, involving all digits proximal to the functional length except in one finger or in two digits, including the thumb.Thumb condition can be used to differentiate between two types.In type I, the thumb is intact or amputated at/or distal to the interphalangeal joint (functional length); and therefore, the reconstruction is focused on fingers mainly...
September 14, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28922244/fibular-graft-effective-panorama-for-prosthetic-rehabilitation-of-resected-mandible
#10
Pankaj Kharade, Saidul Islam, Mahesh Verma, Swati Sharma, Ranjeet Bodh
Surgical management of extensive tumors in the mandibular region leads to massive disfigurement of the face. Also the prosthetic outcome of such patients rehabilitated with free soft tissue flaps is very poor. Reconstruction of extensive defects to overcome the disfigurement is a challenging procedure and can be achieved with free fibula flap. Free fibula graft provides sufficient length of bone for the reconstruction of the postsurgical defects. Excellent vascularity of fibula flap allows for easy uptake of the graft and osseointegration of the dental implants...
September 15, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28922131/riemann-liouvelle-fractional-integral-based-empirical-mode-decomposition-for-ecg-denoising
#11
Shweta Jain, Varun Bajaj, Anil Kumar
Electrocardiograph (ECG) denoising is the most important step in diagnosis of heart related diseases, as the diagnosis gets influenced with noises. In this paper, a new method for ECG denoising is proposed, which incorporates empirical mode decomposition algorithm and Riemann Liouvelle (RL) fractional integral filtering. In the proposed method, noisy ECG signal is decomposed into its intrinsic mode functions (IMFs); from which noisy IMFs are identified by proposed noisy-IMFs identification methodology. RL fractional integral filtering is applied on noisy IMFs to get denoised IMFs; ECG signal is reconstructed with denoised IMFs and remaining signal dominant IMFs to obtain noise-free ECG signal...
September 18, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28922116/iterative-low-dose-ct-reconstruction-with-priors-trained-by-artificial-neural-network
#12
Dufan Wu, Kyungsang Kim, Georges El Fakhri, Quanzheng Li
Dose reduction in computed tomography (CT) is essential for decreasing radiation risk in clinical applications. Iterative reconstruction algorithms are one of the most promising way to compensate for the increased noise due to reduction of photon flux. Most iterative reconstruction algorithms incorporate manually designed prior functions of the reconstructed image to suppress noises while maintaining structures of the image. These priors basically rely on smoothness constraints and cannot exploit more complex features of the image...
September 15, 2017: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/28922052/applications-of-emerging-transmission-electron-microscopy-technology-in-pcd-research-and-diagnosis
#13
Amelia Shoemark
Primary Ciliary Dyskinesia (PCD) is a heterogeneous genetic condition characterized by dysfunction of motile cilia. Patients suffer from chronic infection and inflammation of the upper and lower respiratory tract. Diagnosis of PCD is confirmed by identification of a hallmark defect of ciliary ultrastructure or by identification of biallelic pathogenic mutations in a known PCD gene. Since the first description of PCD in 1976, assessment of ciliary ultrastructure by transmission electron microscopy (TEM) has been central to diagnosis and research...
September 18, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28921961/three-dimensional-reconstruction-of-nuclear-envelope-architecture-using-dual-color-metal-induced-energy-transfer-imaging
#14
Anna M Chizhik, Daja Ruhlandt, Janine Pfaff, Narain Karedla, Alexey I Chizhik, Ingo Gregor, Ralph Heinz Kehlenbach, Joerg Enderlein
The nuclear envelope, comprising the inner and the outer nuclear membrane, separates the nucleus from the cytoplasm and plays a key role in cellular functions. Nuclear pore complexes (NPCs), which are embedded in the nuclear envelope, control transport of macromolecules between the two compartments. Here, using dual-color Metal-Induced Energy Transfer (MIET), we determine the axial distance between Lap2β and Nup358 as markers for the inner nuclear membrane and the cytoplasmic side of the NPC, respectively...
September 18, 2017: ACS Nano
https://www.readbyqxmd.com/read/28921700/low-dose-fractionated-irradiation-promotes-axonal-regeneration-beyond-reactive-gliosis-and-facilitates-locomotor-function-recovery-after-spinal-cord-injury-in-beagle-dogs
#15
Qiang Zhang, Ying Xiong, Bo Zhu, Bifeng Zhu, Daishi Tian, Wei Wang
Injury to the adult central nervous system (CNS) results in the formation of glial scar tissues. Glial scar-induced failure of regenerative axon pathfinding may limit axon regrowth beyond the lesion site and cause incorrect reinnervation and dystrophic appearance of stalled growth after CNS trauma. Glial scars also upregulate chondroitin sulfate proteoglycans (CSPGs) and expression of proinflammatory factor(s) that form a barrier to axonal regeneration. Therefore, interventions for glial scarring are an attractive strategy for augmenting axonal sprouting and regeneration and overcoming the physical and molecular barriers impeding functional repair...
September 18, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28921669/respiratory-variation-in-left-ventricular-cardiac-function-with-3d-double-golden-angle-whole-heart-cine-imaging
#16
Karen Holst, Martin Ugander, Andreas Sigfridsson
PURPOSE: To develop a 3-dimensional free-breathing cardiovascular MR technique for quantifying the variation in left ventricular end-diastolic volume (LVEDV) during the respiratory cycle. METHODS: A 3-dimensional radial trajectory with double golden-angle ordering was used for free-running data acquisition during free breathing in healthy volunteers (N = 8). A respiratory self-gating signal was extracted from the center of k-space, and data were retrospectively binned into eight respiratory phases in end-diastole...
September 17, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28921658/evaluating-instrument-responsiveness-in-joint-function-the-hoos-jr-the-koos-jr-and-the-promis-pf-cat
#17
Man Hung, Charles L Saltzman, Tom Greene, Maren W Voss, Jerry Bounsanga, Yushan Gu, Mike B Anderson, Christopher L Peters, Jeremy Gililland, Christopher E Pelt
Responsiveness is the ability to detect change over time and is an important aspect of measures used to detect treatment effects. The purpose of this study was to assess the responsiveness of the HOOS JR, the KOOS JR, and the PROMIS Physical Function (PF) computerized adaptive test (CAT) in a joint reconstruction practice. 983 patients were evaluated for joint conditions between 2014 and 2017 in an orthopaedic clinic and completed the three instruments at baseline and three and/or six-month follow-up visits...
September 16, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28921167/brain-structural-concomitants-of-resting-state-heart-rate-variability-in-the-young-and-old-evidence-from-two-independent-samples
#18
Hyun Joo Yoo, Julian F Thayer, Steven Greening, Tae-Ho Lee, Allison Ponzio, Jungwon Min, Michiko Sakaki, Lin Nga, Mara Mather, Julian Koenig
Previous research has shown associations between brain structure and resting state high-frequency heart rate variability (HF HRV). Age affects both brain structure and HF HRV. Therefore, we sought to examine the relationship between brain structure and HF HRV as a function of age. Data from two independent studies were used for the present analysis. Study 1 included 19 older adults (10 males, age range 62-78 years) and 19 younger adults (12 males, age range 19-37). Study 2 included 23 older adults (12 males; age range 55-75) and 27 younger adults (17 males; age range 18-34)...
September 18, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28920967/-facial-prosthetics-grounds-and-techniques
#19
R Dirven, G Lieben, S Bouwman, R Wolterink, M W M van den Brekel, P J F M Lohuis
Surgical treatment of advanced facial tumours is often physically, functionally and emotionally debilitating. The resulting defects often give grounds for surgical reconstruction, prosthetic reconstruction or a combination of both. During the past two decades, huge advances have been achieved in the development of prostheses. This has led to improved rehabilitation of facial defects. In the clinic of the Netherlands Cancer Institute - Antoni van Leeuwenhoek, both adhesive- and implant-retained facial prostheses are used...
September 2017: Nederlands Tijdschrift Voor Tandheelkunde
https://www.readbyqxmd.com/read/28920914/robust-visual-tracking-via-online-discriminative-and-low-rank-dictionary-learning
#20
Tao Zhou, Fanghui Liu, Harish Bhaskar, Jie Yang
In this paper, we propose a novel and robust tracking framework based on online discriminative and low-rank dictionary learning. The primary aim of this paper is to obtain compact and low-rank dictionaries that can provide good discriminative representations of both target and background. We accomplish this by exploiting the recovery ability of low-rank matrices. That is if we assume that the data from the same class are linearly correlated, then the corresponding basis vectors learned from the training set of each class shall render the dictionary to become approximately low-rank...
September 12, 2017: IEEE Transactions on Cybernetics
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