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https://www.readbyqxmd.com/read/29241108/the-efficacy-of-posterior-hemivertebra-resection-with-lumbosacral-fixation-and-fusion-in-the-treatment-of-congenital-scoliosis-a-more-than-2-year-follow-up-study
#1
Qiunan Lyu, Bowen Hu, Chunguang Zhou, Limin Liu, Yueming Song, Xi Yang, Liang Wang, Lei Wang
OBJECTIVE: Hemivertebrae (HV) located at the lower lumbar or lumbosacral region often produce early trunk imbalance and long compensatory curves. Because of the biomechanical characteristics of the lumbosacral junction, the rate of instrumentation failures at the region has always been high. Our study aimed to evaluate the results of posterior HV resection with lumbosacral fixation and fusion in the treatment of congenital scoliosis and to make a preliminary analysis of the possible risk factors for instrument failures...
December 9, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29240974/increased-xylose-affinity-of-hxt2-through-gene-shuffling-of-hexose-transporters-in-saccharomyces-cerevisiae
#2
Jeroen G Nijland, Hyun Yong Shin, Paul P de Waal, Paul Klaassen, Arnold J M Driessen
AIMS: Optimizing D-xylose transport in Saccharomyces cerevisiae is essential for efficient bioethanol production from cellulosic materials. We have used a gene shuffling approach of hexose (Hxt) transporters in order to increase the affinity for D-xylose. METHODS AND RESULTS: Various libraries were transformed to a hexose transporter deletion strain and shuffled genes were selected via growth on low concentrations of D-xylose. This screening yielded two homologous fusion proteins (fusion 9,4 and 9,6), both consisting of the major central part of Hxt2 and various smaller parts of other Hxt proteins...
December 14, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29240934/a-peculiar-iclr-family-transcription-factor-regulates-para-hydroxybenzoate-catabolism-in-streptomyces-coelicolor
#3
Rui Zhang, Dana M Lord, Rakhi Bajaj, Wolfgang Peti, Rebecca Page, Jason K Sello
In Streptomyces coelicolor, we identified a para-hydroxybenzoate (PHB) hydroxylase, encoded by gene pobA (SCO3084), which is responsible for conversion of PHB into PCA (protocatechuic acid), a substrate of the β-ketoadipate pathway which yields intermediates of the Krebs cycle. We also found that the transcription of pobA is induced by PHB and is negatively regulated by the product of SCO3209, which we named PobR. The product of this gene is highly unusual in that it is the apparent fusion of two IclR family transcription factors...
December 12, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29240734/transient-expression-of-human-antibodies-in-mammalian-cells
#4
Rodrigo Vazquez-Lombardi, Damien Nevoltris, Ansha Luthra, Peter Schofield, Carsten Zimmermann, Daniel Christ
Recombinant expression of antibody molecules in mammalian cells offers important advantages over traditionally utilized bacterial expression, including glycosylation required for antibody functionality and markedly reduced levels of endotoxin contamination. Advances in transient mammalian expression systems enable high yields (>100 mg/liter) that now allow for effective recombinant antibody production at a reasonable cost. Here, we provide step-by-step protocols for the design and recombinant expression of full-length IgG antibodies and antibody-derived constructs (including Fab, Fc-fusions and bispecifics) in mammalian cells...
January 2018: Nature Protocols
https://www.readbyqxmd.com/read/29240584/dermatofibrosarcoma-protuberans-of-distal-extremities-and-acral-sites-a-clinicopathologic-analysis-of-27-cases
#5
Kabeer K Shah, Jonathan B McHugh, Andrew L Folpe, Rajiv M Patel
Dermatofibrosarcoma protuberans (DFSP) of the distal extremities and acral sites are extremely rare and incompletely characterized. Twenty-seven DFSP occurring in these sites were retrieved from our collective archives and reevaluated. Tumors occurred in 16 males and 11 females. Median age at presentation was 42.5 years (range, 7 to 78 y). Lesions involved the foot (18 with 6 in the toes and 2 on the plantar foot), distal ankle (4), hand (4 with 2 in the thumbs), and wrist (1). All cases showed predominantly classic DFSP morphology and were diffusely CD34 positive...
December 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29240581/cutaneous-melanocytoma-with-crtc1-trim11-fusion-report-of-5-cases-resembling-clear-cell-sarcoma
#6
Lucie Cellier, Emilie Perron, Daniel Pissaloux, Marie Karanian, Veronique Haddad, Laurent Alberti, Arnaud de la Fouchardière
We report 5 cases of primary intradermal nodular unpigmented tumors with a melanocytic immunophenotype associated with a novel CRTC1-TRIM11 fusion. Clinically, the cutaneous nodules were slowly growing in 3 women and 2 men (25 to 82 y old, median, 28 y) with no specific topography. Lesion size ranged from 4 to 12 mm (median, 5 mm). The tumors were strictly located in the dermis with a nodular pattern. The cells were arranged in confluent nests and fascicules. Central fibronecrotic areas were present in 2 cases...
December 7, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29240131/exposure-fusion-based-dot-grid-image-acquisition-and-recognition-for-sheet-metal-strain-analysis
#7
Bao-Quan Shi, Li-Kun Zhang, Chen-Song Yao, Shu-Xing Du, JunJie Ye
Dot-grid images are usually captured for grid strain analysis during sheet metal forming. Due to the strong reflective characteristic of the metallic surfaces, the recorded dot-grid images often have poor quality, low positioning accuracy, and low recognition rate. Therefore, an exposure-fusion-based dot-grid image acquisition and recognition approach is proposed. First, multiple dot-grid images are captured at different exposure levels. Subsequently, the recorded multi-exposure dot-grid images are fused into a new high-quality dot-grid image based on exposure fusion technology...
December 10, 2017: Applied Optics
https://www.readbyqxmd.com/read/29240019/integrating-patient-controlled-analgesia-using-implanted-intrathecal-pumps-for-postoperative-pain-management-a-case-report
#8
Alec Peniche, Lawrence Poree, Mark Schumacher, Xiaobing Yu
Intrathecal patient-controlled analgesia (IT-PCA) through implanted intrathecal infusion pumps has been increasingly utilized for severe cancer and chronic noncancer pain management. However, its application for acute postoperative pain management has not been reported to date. We present a case of a patient with an implanted intrathecal pump for chronic nonmalignant back pain who underwent an extensive spinal fusion surgery. The IT-PCA functionality of her intrathecal pump was successfully integrated into her postoperative multimodal pain regimen...
December 11, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/29239868/prolonged-preoperative-weakness-affects-recovery-of-motor-function-after-anterior-cervical-diskectomy-and-fusion
#9
Tyler Kreitz, Ronald Huang, David Beck, Andrew G Park, Alan Hilibrand
INTRODUCTION: Some patients who undergo anterior cervical diskectomy and fusion for radiculopathy or myelopathy demonstrate preoperative weakness. The purpose of this study was to determine which factors predict motor recovery in patients undergoing anterior cervical diskectomy and fusion. METHODS: A retrospective review of our institutional database identified patients undergoing anterior cervical diskectomy and fusion between 2010 and 2013 with 2 years of clinical follow-up...
December 8, 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29239858/prediction-of-breast-cancer-risk-using-a-machine-learning-approach-embedded-with-a-locality-preserving-projection-algorithm
#10
Morteza Heidari, Abolfazl Zargari Khuzani, Alan B Hollingsworth, Gopichandh Danala, Seyedehnafiseh Mirniaharikandehei, Yuchen Qiu, Hong Liu, Bin Zheng
In order to automatically identify a set of effective mammographic image features and build an optimal breast cancer risk stratification model, this study aims to investigate advantages of applying a machine learning approach embedded with a locally preserving projection (LPP) based feature combination and regeneration algorithm to predict short-term breast cancer risk. A dataset involving negative mammograms acquired from 500 women was assembled. This dataset was divided into two age-matched classes of 250 high risk cases in which cancer was detected in the next subsequent mammography screening and 250 low risk cases, which remained negative...
December 14, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29239725/t-cell-calcium-dynamics-visualized-in-a-ratiometric-tdtomato-gcamp6f-transgenic-reporter-mouse
#11
Tobias X Dong, Shivashankar Othy, Amit Jairaman, Jonathan Skupsky, Angel Zavala, Ian Parker, Joseph L Dynes, Michael D Cahalan
Calcium is an essential cellular messenger that regulates numerous functions in living organisms. Here we describe development and characterization of 'Salsa6f', a fusion of GCaMP6f and tdTomato optimized for cell tracking while monitoring cytosolic Ca2+, and a transgenic Ca2+ reporter mouse with Salsa6f targeted to the Rosa26 locus for Cre-dependent expression in specific cell types. The development and function of T cells was unaffected in Cd4-Salsa6f mice. We describe Ca2+ signals reported by Salsa6f during T cell receptor activation in naïve T cells, helper Th17 T cells and regulatory T cells, and Ca2+ signals mediated in T cells by an activator of mechanosensitive Piezo1channels...
December 14, 2017: ELife
https://www.readbyqxmd.com/read/29239714/fusion-proteins-towards-fungi-and-bacteria-in-plant-protection
#12
Ana Margarida Pinheiro, Alexandra Carreira, Ricardo B Ferreira, Sara Monteiro
In agriculture, although fungi are considered the foremost problem, infections by bacteria also cause significant economical losses. The presence of different diseases in crops often leads to a misuse of the proper therapeutic, or the combination of different diseases forces the use of more than one pesticide. This work concerns the development of a 'super-Blad': a chimeric protein consisting of Blad polypeptide, the active ingredient of a biological fungicide already on the market, and two selected peptides, SP10-5 and Sub5, proven to possess biological potential as antibacterial agents...
December 14, 2017: Microbiology
https://www.readbyqxmd.com/read/29239707/immigration-psychic-dislocation-and-the-re-creation-of-community
#13
Ricardo C Ainslie
Communities are "psychic entities" that serve powerful psychological functions for the individuals living within them. They also serve multiple functions, including as a potential space where individuals are "held" and within which individuals "play" in ways akin to Winnicott's formulations regarding how infants "use" the me-not-me zone of experiencing, the potential space created by the gap between symbiotic engagement and the maternal object, in a zone between desire for fusion and fear of disintegrating abandonment...
December 2017: Psychoanalytic Review
https://www.readbyqxmd.com/read/29239377/dodgy-citations-fusion-milestone-and-a-skeleton-called-little-foot
#14
(no author information available yet)
No abstract text is available yet for this article.
December 14, 2017: Nature
https://www.readbyqxmd.com/read/29239241/tuberculous-spondylitis-after-vertebral-augmentation-a-case-report-with-a-literature-review
#15
Sun Jia-Jia, Sun Zhi-Yong, Qian Zhong-Lai, Yang Hui-Lin, Zhu Xiao-Yu
Tuberculous spondylitis of vertebral augmentation following percutaneous vertebroplasty or kyphoplasty is rare. We report an unusual case of tuberculous spondylitis diagnosed after percutaneous kyphoplasty (PKP). A 54-year-old woman presented to hospital complaining of back pain following a fall 20 days prior. Radiology showed an acute osteoporotic compression (L3 fracture). The patient denied a history of pulmonary tuberculosis and there were no signs of infection. The patient was discharged from hospital 2 days after undergoing L3 PKP with a dramatic improvement in her back pain...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/29239040/molecular-pathology-of-thyroid-tumours-of-follicular-cells-a-review-of-genetic-alterations-and-their-clinicopathological-relevance
#16
REVIEW
Giorgia Acquaviva, Michela Visani, Andrea Repaci, Kerry J Rhoden, Dario de Biase, Annalisa Pession, Tallini Giovanni
Thyroid cancer is the most common endocrine malignancy. Knowledge of the molecular pathology of thyroid tumours originating from follicular cells has greatly advanced in the past several years. Common molecular alterations, such as BRAF p.V600E, RAS point mutations, and fusion oncogenes (RET-PTC being the prototypical example), have been, respectively, associated with conventional papillary carcinoma, follicular-patterned tumours (follicular adenoma, follicular carcinoma, and the follicular variant of papillary carcinoma/non-invasive follicular thyroid neoplasm with papillary-like nuclear features), and with papillary carcinomas from young patients and arising after exposure to ionising radiation, respectively...
January 2018: Histopathology
https://www.readbyqxmd.com/read/29238743/choosing-proper-fluorescent-dyes-proteins-and-imaging-techniques-to-study-mitochondrial-dynamics-in-mammalian-cells
#17
Xingguo Liu, Liang Yang, Qi Long, David Weaver, György Hajnóczky
Mitochondrial dynamics refers to the processes maintaining mitochondrial homeostasis, including mitochondrial fission, fusion, transport, biogenesis, and mitophagy. Mitochondrial dynamics is essential for maintaining the metabolic function of mitochondria as well as their regulatory roles in cell signaling. In this review, we summarize the recently developed imaging techniques for studying mitochondrial dynamics including: mitochondrial-targeted fluorescent proteins and dyes, live-cell imaging using photoactivation, photoswitching and cell fusion, mitochondrial transcription and replication imaging by in situ hybridization, and imaging mitochondrial dynamics by super-resolution microscopy...
2017: Biophysics Reports
https://www.readbyqxmd.com/read/29238648/trends-in-spinal-surgery-for-pott-s-disease-2000-2016-an-overview-and-bibliometric-study
#18
Christian Fisahn, Fernando Alonso, Ghazwan A Hasan, R Shane Tubbs, Joseph R Dettori, Thomas A Schildhauer, Tarush Rustagi
Study Design: Systematic review. Objectives: (1) What are the surgical indications? Have they changed over time since the year 2000? (2) What is the current surgical approaches of choice? Have they changed over time since the year 2000? Do they vary by geographical region? (3) What are the most common outcome measures following surgery? Methods: Electronic databases and reference lists of key articles were searched from database inception from January 1, 2000 to December 31, 2016 to identify studies specifically evaluating surgical indications, current surgical approaches, and outcome measures for spinal tuberculosis...
December 2017: Global Spine Journal
https://www.readbyqxmd.com/read/29238647/rsa-in-spine-a-review
#19
REVIEW
Ali Humadi, Sulaf Dawood, Klas Halldin, Brian Freeman
Study Design: Systematic review of literature. Objectives: This systematic review was conducted to investigate the accuracy of radiostereometric analysis (RSA), its assessment of spinal motion and disorders, and to investigate the limitations of this technique in spine assessment. Methods: Systematic review in all current literature to invesigate the role of RSA in spine. Results: The results of this review concluded that RSA is a very powerful tool to detect small changes between 2 rigid bodies such as a vertebral segment...
December 2017: Global Spine Journal
https://www.readbyqxmd.com/read/29238646/stem-cells-in-spinal-fusion
#20
Michael A Robbins, Dominik R Haudenschild, Adam M Wegner, Eric O Klineberg
Study Design: Review of literature. Objectives: This review of literature investigates the application of mesenchymal stem cells (MSCs) in spinal fusion, highlights potential uses in the development of bone grafts, and discusses limitations based on both preclinical and clinical models. Methods: A review of literature was conducted looking at current studies using stem cells for augmentation of spinal fusion in both animal and human models...
December 2017: Global Spine Journal
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