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https://www.readbyqxmd.com/read/27923216/efficacy-of-a-cellular-bone-allograft-for-foot-and-ankle-arthrodesis-and-revision-nonunion-procedures
#1
Travis J Dekker, Peter White, Samuel B Adams
BACKGROUND: Bone graft substitutes are often required in patients at risk for nonunion, and therefore, an allograft that most closely mimics an autograft is highly sought after. This study explored the utility and efficacy of a cellular bone allograft used for foot and ankle arthrodesis and revision nonunion procedures in a patient population at risk for nonunion. METHODS: An institutional review board-approved retrospective review of consecutive patients who underwent arthrodesis and revision nonunion procedures with a cellular bone allograft was performed at a single academic institution...
October 23, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27921298/female-induced-remote-regulation-of-sperm-physiology-may-provide-opportunities-for-gamete-level-mate-choice
#2
Jukka Kekäläinen, Jonathan P Evans
In sedentary externally fertilizing species, direct interactions between mating partners are limited and pre-fertilization communication between sexes occur largely at the gamete level. Certain combinations of eggs and sperm often have higher fertilization success than others, which may be contingent on egg-derived chemical factors that preferentially attract sperm from compatible males. Here, we examine the mechanisms underlying such effects in the marine mussel Mytilus galloprovincialis, where differential sperm attraction has recently been shown to be associated with variation in offspring viability...
December 6, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/27921253/aberrant-alterations-of-mitochondrial-factors-drp1-and-opa1-in-the-brains-of-scrapie-experiment-rodents
#3
Xiao -Dong Yang, Qi Shi, Jing Sun, Yan Lv, Yue Ma, Cao Chen, Kang Xiao, Wei Zhou, Xiao-Ping Dong
The abnormal mitochondrial dynamics has been reported in the brains of some neurodegenerative diseases, such as Alzheimer's disease (AD) and Parkinson's disease (PD), but limitedly described in prion disease. Dynamin-related protein 1 (Drpl) and optic atrophy protein 1 (Opa1) are two essential elements for mitochondria fission and fusion. To evaluate possible changes of mitochondria dynamics during prion infection, the situations of brain Drp1 and Opa1 of scrapie strains 139A, ME7, and S15 mice, as well as 263K-infected hamsters, were analyzed...
December 6, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27920559/e2a-pbx1-exhibited-a-promising-prognosis-in-pediatric-acute-lymphoblastic-leukemia-treated-with-the-cclg-all2008-protocol
#4
Yixin Hu, Hailong He, Jun Lu, Yi Wang, Peifang Xiao, Jianqin Li, Jie Li, Yina Sun, Hui Lv, Junjie Fan, Yanhua Yao, Yihuan Chai, Shaoyan Hu
OBJECTIVE: The objective of this study was to observe the prognosis of pediatric patients with E2A-PBX1-positive acute lymphoblastic leukemia (ALL) from the treatment with the CCLG-ALL2008 protocol. DESIGN AND METHODS: Three hundred and forty-nine Chinese pediatric patients with pre-B-cell ALL were enrolled in this study from December 2008 to September 2013. Of these, 20 patients with E2A-PBX1 expression and 223 without the gene expression were stratified into two cohorts...
2016: OncoTargets and Therapy
https://www.readbyqxmd.com/read/27920332/comparison-of-ankle-fusion-rates-with-and-without-anterior-plate-augmentation
#5
Phillip M Mitchell, Diana G Douleh, A Brian Thomson
BACKGROUND: The optimal fixation construct for tibiotalar arthrodesis continues to be debated. While biomechanical data and clinical series support anterior plate augmentation, comparative studies assessing its use are sparse. The purpose of this study was to compare the rates of successful tibiotalar arthrodesis with and without anterior plate augmentation of a compression screw construct. METHODS: We studied 64 patients (65 ankles) undergoing tibiotalar arthrodesis done by a single surgeon over a 10-year period (2006-2016) with anterior plate augmentation beginning in 2010...
December 5, 2016: Foot & Ankle International
https://www.readbyqxmd.com/read/27920297/role-of-ribonucleotide-reductase-on-bacillus-subtilis-stress-associated-mutagenesis
#6
Karla Viridiana Castro-Cerritos, Ronald E Yasbin, Eduardo A Robleto, Mario Pedraza-Reyes
: The Gram-positive microorganism Bacillus subtilis relies on a single class Ib ribonucleotide reductase (RNR) to generate 2' -deoxyribonucleotides (dNDPs) for DNA replication and repair. In this work, we investigated the influence of RNR levels on B. subtilis stationary-phase-associated mutagenesis (SPM). Since RNR is essential in this bacterium, we engineered a conditional mutant in the strain B. subtilis YB955 (hisC952, metB5, leu427) in which expression of the nrdEF operon was modulated by isopropyl-β-D-thiogalactopyranoside (IPTG)...
December 5, 2016: Journal of Bacteriology
https://www.readbyqxmd.com/read/27920160/supressor-of-frigida-suf4-supports-gamete-fusion-via-regulating-arabidopsis-ec1-gene-expression
#7
Francesca Resentini, Philippe Cyprys, Joshua G Steffen, Svenja Alter, Pietro Angelo Morandini, Chiara Mizzotti, Alan Lloyd, Gary N Drews, Thomas Dresselhaus, Lucia Colombo, Stefanie Sprunck, Simona Masiero
The EC1 gene family of Arabidopsis thaliana comprises five members that are specifically expressed in the egg cell and redundantly control gamete fusion during double fertilization. We investigated the activity of all five EC1 promoters in promoter-deletion studies and identified SUF4 (SUPPRESSOR OF FRIGIDA 4), a C2H2 transcription factor, as a direct regulator of the EC1 gene expression. In particular, we demonstrated that SUF4 binds to all five Arabidopsis EC1 promoters, thus regulating their expression. The down regulation of SUF4 in homozygous suf4-1 ovules results in reduced EC1 expression and delayed sperm fusion, which can be rescued by expressing SUF4-GUS under control of the SUF4 promoter...
December 5, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27918730/il-4-induces-the-formation-of-multinucleated-giant-cells-and-expression-of-%C3%AE-5-integrin-in-central-giant-cell-lesion
#8
A Aghbali, S Rafieyan, L Mohamed-Khosroshahi, B Baradaran, D Shanehbandi, M Kouhsoltani
BACKGROUND: It is now well established that IL-4 has a central role in the development of monocytes to multinucleated giant cells (MGCs) by inducing the expression of integrins on the surface of monocytes. The aim of this study was to investigate the potential role of IL-4 in induction of β5 integrin expression in the peripheral blood samples of patients with giant cell granuloma. MATERIAL AND METHODS: Monocytes were isolated from peripheral blood samples of patients with central giant cell granuloma (CGCG) and healthy controls using human Monocyte Isolation Kit II...
December 6, 2016: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/27916038/-mid-to-long-term-outcomes-of-cervical-disc-arthroplasty-for-symptomatic-cervical-disc-disease-a-meta-analysis
#9
S L Kan, B Yang, G Z Ning, S J Gao, J C Sun, S Q Feng
Objective: To compare the benefits and harms of cervical disc arthroplasty (CDA) with anterior cervical discectomy and fusion(ACDF) for symptomatic cervical disc disease at mid- to long-term follow-up. Methods: Electronic searches were made in PubMed, EMBASE, and the Cochrane Library for randomized controlled trials with at least 48 moths follow-up.Outcomes were reported as relative risk or standardized mean difference.Meta-analysis was carried out using Revman version 5.3 and Stata version 12.0. Results: Seven trials were included, involving 2 302 participants...
December 1, 2016: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/27915374/long-term-functional-and-radiological-outcomes-of-allograft-hip-prosthesis-composite-a-fourteen%C3%A2-year-follow-up-study
#10
Arnaud Dubory, Eric Mascard, Méryl Dahan, Philippe Anract, Charles Court, Stéphane Boisgard, Brice Viard, Gilles Missenard
PURPOSE: Allograft hip composite prosthesis (APC) is a type of reconstruction after resection of the proximal femur. This study aimed to assess long-term outcomes after an APC reconstruction. MATERIALS AND METHODS: Forty-six patients were retrospectively included (14 revision total hip replacements, 30 primary malignant bone tumors, two metastasis). RESULTS: The mean length of femoral bone resection was 16.4 cm (7 to 27). With a mean follow-up of 14...
December 3, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27914931/valosin-containing-protein-vcp-p97-plays-a-role-in-the-replication-of-west-nile-virus
#11
Wallaya Phongphaew, Shintaro Kobayashi, Michihito Sasaki, Michael Carr, William W Hall, Yasuko Orba, Hirofumi Sawa
Valosin-containing protein (VCP) is classified as a member of the type II AAA(+) ATPase protein family. VCP functions in several cellular processes, including protein degradation, membrane fusion, vesicular trafficking and disassembly of stress granules. Moreover, VCP is considered to play a role in the replication of several viruses, albeit through different mechanisms. In the present study, we have investigated the role of VCP in West Nile virus (WNV) infection. Endogenous VCP expression was inhibited using either VCP inhibitors or by siRNA knockdown...
November 30, 2016: Virus Research
https://www.readbyqxmd.com/read/27914320/biochemical-precursor-effects-on-the-fatty-acid-production-in-cell-suspension-cultures-of-theobroma-cacao-l
#12
O Parra, A M Gallego, A Urrea, L F Rojas, C Correa, L Atehortúa
Cocoa butter (CB) is composed of 96% palmitic, stearic, oleic, linoleic and linolenic fatty acids that are responsible for the hardness, texture and fusion properties of chocolate. Through in vitro plant cell culture it is possible to modify CB lipid profiles and to study the fatty acid biosynthesis pathway on a subcellular level, evaluating fundamental aspects to enhance in vitro fatty acid production in a specific and controlled way. In this research, culture media was supplemented with acetate, biotin, pyruvate, bicarbonate and glycerol at three different concentrations and the effects on the biomass production (g/L), cell viability, and fatty acids profile and production was evaluated in in vitro cell suspensions culture...
November 25, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27914109/bcor-upregulation-in-a-poorly-differentiated-synovial-sarcoma-with-ss18l1-ssx1-fusion-a-pathologic-and-molecular-pitfall
#13
Yu-Chien Kao, Yun-Shao Sung, Lei Zhang, Samuel Kenan, Samuel Singer, William D Tap, David Swanson, Brendan C Dickson, Cristina R Antonescu
The diagnosis of poorly differentiated synovial sarcoma (PD-SS) may be challenging due to overlapping morphologic features with other undifferentiated round cell sarcomas (URCS). Particularly relevant is the histologic overlap and shared BCOR overexpression between a subset of SS and URCS with various BCOR genetic abnormalities. Here we report a case of PD-SS lacking the canonical SS18-SSX gene fusion, but showing strong BCOR immunoreactivity and BCOR gene abnormalities by FISH which were misinterpreted as a URCS with BCOR gene rearrangements...
December 3, 2016: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/27911875/autophagy-flux-induced-by-ginsenoside-rg3-attenuates-human-prion-protein-mediated-neurotoxicity-and-mitochondrial-dysfunction
#14
Ji-Hong Moon, Ju-Hee Lee, You-Jin Lee, Sang-Youel Park
Mitochondrial quality control is a process by which mitochondria undergo successive rounds of fusion and fission with dynamic exchange of components to segregate functional and damaged elements. Removal of mitochondrion that contains damaged components is accomplished via autophagy. In this study, we investigated whether ginsenoside Rg3, an active ingredient of the herbal medicine ginseng that is used as a tonic and restorative agent, could attenuate prion peptide, PrP (106-126)-induced neurotoxicity and mitochondrial damage...
November 30, 2016: Oncotarget
https://www.readbyqxmd.com/read/27911427/-modern-approach-to-early-diagnosis-and-pathogenetic-treatment-of-diabetic-retinopathy
#15
I V Vorob'eva
AIM: To improve the approach to pathogenetic treatment of diabetic retinopathy (DR) through early diagnosis and a new method for predicting disease progression. MATERIAL AND METHODS: The study enrolled 330 type 2 diabetes patients with DR (660 eyes), of whom women constituted 64.6%, men - 35.4%. The mean patient age was 62.3±2.3 years. Three groups were formed: the controls - 30 healthy volunteers (60 eyes) and 30 type 2 diabetes patients without ocular involvement (DR 0, 60 eyes); group 1 - 30 type 2 diabetes patients with DR I but no diabetic macular edema (DR I without DME, 60 eyes) that were treated with calcium dobesilate; group 2 - 240 type 2 diabetes patients, who had diabetic retinopathy of different stages (DR I, II, or III with DME, 480 eyes) and received laser retinal photocoagulation (LRP)...
2016: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/27911334/matrix-metalloproteinases-and-tissue-inhibitor-of-metalloproteinases-in%C3%A2-inflammation-and-fibrosis-of-skeletal-muscles
#16
Hala S Alameddine, Jennifer E Morgan
In skeletal muscles, levels and activity of Matrix MetalloProteinases (MMPs) and Tissue Inhibitors of MetalloProteinases (TIMPs) have been involved in myoblast migration, fusion and various physiological and pathological remodeling situations including neuromuscular diseases. This has opened perspectives for the use of MMPs' overexpression to improve the efficiency of cell therapy in muscular dystrophies and resolve fibrosis. Alternatively, inhibition of individual MMPs in animal models of muscular dystrophies has provided evidence of beneficial, dual or adverse effects on muscle morphology or function...
November 29, 2016: Journal of Neuromuscular Diseases
https://www.readbyqxmd.com/read/27910803/the-prognostic-and-predictive-value-of-tmprss2-erg-gene-fusion-and-erg-protein-expression-in-prostate-cancer-biopsies
#17
Kasper Drimer Berg
BACKGROUND: The clinical course of prostate carcinoma (PCa) is very heterogeneous. Consequently, a personalised approach for risk stratification and treatment planning is important. Recently, it has become evident that PCa, also at the genomic level, is heterogeneous. An early and common alteration is the gene fusion between the transmembrane protease serine 2 (TMPRSS2) gene and the v-ets avian erythroblastosis virus E26 oncogene homolog (ERG) gene resulting in expression of the oncoprotein ERG...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27910663/multi-energy-sxr-cameras-for-magnetically-confined-fusion-plasmas-invited
#18
L F Delgado-Aparicio, J Maddox, N Pablant, K Hill, M Bitter, J E Rice, R Granetz, A Hubbard, J Irby, M Greenwald, E Marmar, K Tritz, D Stutman, B Stratton, P Efthimion
A compact multi-energy soft x-ray camera has been developed for time, energy and space-resolved measurements of the soft-x-ray emissivity in magnetically confined fusion plasmas. Multi-energy soft x-ray imaging provides a unique opportunity for measuring, simultaneously, a variety of important plasma properties (Te, nZ, ΔZeff, and ne,fast). The electron temperature can be obtained by modeling the slope of the continuum radiation from ratios of the available brightness and inverted radial emissivity profiles over multiple energy ranges...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910656/the-design-of-the-optical-thomson-scattering-diagnostic-for-the-national-ignition-facility
#19
P S Datte, J S Ross, D H Froula, K D Daub, J Galbraith, S Glenzer, B Hatch, J Katz, J Kilkenny, O Landen, D Manha, A M Manuel, W Molander, D Montgomery, J Moody, G F Swadling, J Weaver
The National Ignition Facility (NIF) is a 192 laser beam facility designed to support the Stockpile Stewardship, High Energy Density and Inertial Confinement Fusion (ICF) programs. We report on the design of an Optical Thomson Scattering (OTS) diagnostic that has the potential to transform the community's understanding of NIF hohlraum physics by providing first principle, local, time-resolved measurements of under-dense plasma conditions. The system design allows operation with different probe laser wavelengths by manual selection of the appropriate beam splitter and gratings before the shot...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910598/analogue-saturation-limit-of-single-and-double-10-mm-microchannel-plate-photomultiplier-tubes
#20
J S Milnes, T M Conneely, C J Horsfield
Photek are a well-established supplier of microchannel plate (MCP) photomultiplier tubes (PMTs) to the inertial confinement fusion community. The analogue signals produced at the major inertial confinement fusion facilities cover many orders of magnitude, therefore understanding the upper saturation limit of MCP-PMTs to large low rate signals takes on a high importance. Here we present a study of a single and a double MCP-PMT with 10 mm diameter active area. The saturation was studied for a range of optical pulse widths from 4 ns to 100 ns and at a range of electron gain values: 10(3) to 10(4) for the single and 10(4) to 10(6) for the double...
November 2016: Review of Scientific Instruments
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