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https://www.readbyqxmd.com/read/28323704/minimizing-pedicle-screw-pullout-risks-a-detailed-biomechanical-analysis-of-screw-design-and-placement
#1
Rohan-Jean Bianco, Pierre-Jean Arnoux, Eric Wagnac, Jean-Marc Mac-Thiong, Carl-Éric Aubin
STUDY DESIGN: Detailed biomechanical analysis of the anchorage performance provided by different pedicle screw designs and placement strategies under pullout loading. OBJECTIVE: To biomechanically characterize the specific effects of surgeon-specific pedicle screw design parameters on anchorage performance using a finite element model. SUMMARY OF BACKGROUND DATA: Pedicle screw fixation is commonly used in the treatment of spinal pathologies...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28319565/bone-marrow-graft-versus-host-disease-in-major-histocompatibility-complex-matched-murine-reduced-intensity-allogeneic-hemopoietic-cell-transplantation
#2
Kifah Shahin, Zamil Mattar, Pablo Silveira, Wei-Hsun Hsu, Linda Bendall, Derek Hart, Kenneth F Bradstock
BACKGROUND: Most clinical allogeneic hemopoietic cell transplants (alloHCT) are now performed using reduced intensity conditioning (RIC) instead of myeloablative (MAC) conditioning, however, the biology underlying this treatment remains incompletely understood. METHODS: We investigated a murine model of major histocompatibility complex (MHC)-matched multiple minor histocompatibility antigen mismatched alloHCT, using bone marrow (BM) cells and splenocytes from B6 (H-2) donor mice transplanted into BALB...
March 18, 2017: Transplantation
https://www.readbyqxmd.com/read/28319199/a-computational-analysis-of-in-vivo-vegfr-activation-by-multiple-co-expressed-ligands
#3
Lindsay E Clegg, Feilim Mac Gabhann
The splice isoforms of vascular endothelial growth A (VEGF) each have different affinities for the extracellular matrix (ECM) and the coreceptor NRP1, which leads to distinct vascular phenotypes in model systems expressing only a single VEGF isoform. ECM-immobilized VEGF can bind to and activate VEGF receptor 2 (VEGFR2) directly, with a different pattern of site-specific phosphorylation than diffusible VEGF. To date, the way in which ECM binding alters the distribution of isoforms of VEGF and of the related placental growth factor (PlGF) in the body and resulting angiogenic signaling is not well-understood...
March 20, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28319072/long-term-follow-up-of-a-retrospective-comparison-of-reduced-intensity-conditioning-and-conventional-high-dose-conditioning-for-allogeneic-transplantation-from-matched-related-donors-in-myelodysplastic-syndromes
#4
R Martino, A Henseler, M van Lint, N Schaap, J Finke, D Beelen, S Vigouroux, E P Alessandrino, G J Mufti, J H Veelken, B Bruno, I Yakoub-Agha, L Volin, J Maertens, R Or, V Leblond, M Rovira, P Kalhs, A F Alvarez, A Vitek, J Sierra, E Wagner, M Robin, T de Witte, N Kröger
This study shows the long-term updated outcomes of a multicenter retrospective study which analyzed 843 patients with myelodysplastic syndrome (MDS) who underwent transplantation with an HLA-identical sibling donor with either reduced-intensity conditioning (RIC) in 213 patients, or standard myeloablative conditioning (MAC) in 630 patients. In multivariate analysis, the 13-year relapse rate was significantly increased after RIC (31% after MAC vs 48% in RIC; HR, 1.5; 95% CI, 1.1-1.9; P=0.04), but with no differences in overall survival (OS) (30% after MAC vs 27% in RIC; P=0...
March 20, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28318401/hand-function-in-a-population-based-sample-of-young-children-with-unilateral-or-bilateral-cerebral-palsy
#5
Gunvor L Klevberg, Sigrid Østensjø, Lena Krumlinde-Sundholm, Sonja Elkjær, Reidun B Jahnsen
AIM: To describe aspects of hand function in a population-based sample of young children with clinical signs of unilateral or bilateral cerebral palsy (CP). METHOD: A cross-sectional study with data from national CP registers in Norway. Manual ability was classified with the Manual Ability Classification System (MACS) or Mini-MACS. Hand use in bimanual activities was measured with the Assisting Hand Assessment (AHA) for unilateral CP or the newly developed Both Hands Assessment (BoHA) for bilateral CP...
March 20, 2017: Physical & Occupational Therapy in Pediatrics
https://www.readbyqxmd.com/read/28316125/deferoxamine-activated-hypoxia-inducible-factor-1-restores-cardioprotective-effects-of-sevoflurane-postconditioning-in-diabetic-rats
#6
Peng Xie, Long Yang, Ailaiti Talaiti, Jianjiang Wu, Jin Yu, Tian Yu, Haiying Wang, Bo Huang, Qin Wu, Yiliyaer Maimaitili, Jiang Wang, Haiping Ma, Yining Yang, Hong Zheng
AIM: The cardioprotective effects of sevoflurane postconditioning (SpostC) are eliminated under diabetic conditions, and the underlying mechanism for this phenomenon remains unclear. Many studies have demonstrated that the hypoxia-inducible factor-1(HIF-1) signaling pathway in the myocardium is impaired under diabetic conditions. This study was to investigate whether deferoxamine (DFO)-induced activation of HIF-1 signaling pathway can restore the cardioprotective effects of SpostC in diabetic rats...
March 17, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28315055/determination-of-heavy-metals-in-muscle-tissue-of-six-fish-species-with-different-feeding-habits-from-the-danube-river-belgrade-public-health-and-environmental-risk-assessment
#7
Dragoljub A Jovanović, Radmila V Marković, Vlado B Teodorović, Dragan S Šefer, Milena P Krstić, Stamen B Radulović, Jelena S Ivanović Ćirić, Jelena M Janjić, Milan Ž Baltić
The aim of this study was to investigate the presence of heavy metals/metalloids (Pb, Cd, Hg, Cu, Fe, Zn, As) in the muscle tissue of fish from the Danube River (two locations: Zemun and Grocka). For the purpose of heavy metal determination in fish muscle, 120 samples of six different fish species, Prussian carp, barbel, bream, carp, pike perch, and catfish were collected. For determining heavy metals, we used microwave oven digestion and atomic absorption spectrometer methods. The highest average content of Pb (0...
March 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28302644/what-is-an-roc-curve
#8
EDITORIAL
Zhe Hui Hoo, Jane Candlish, Dawn Teare
The paper by Body et al is concerned with the evaluation of decision aids, which can be used to identify potential acute coronary syndromes (ACS) in the ED. The authors previously developed the Manchester Acute Coronary Syndromes model (MACS) decision aid, which uses several clinical variables and two biomarkers to 'rule in' and 'rule out' ACS. However, one of the two biomarkers (heart-type fatty acid bindingprotein, H-FABP) is not widely used so a revised decision aid has been developed (Troponin-only Manchester Acute Coronary Syndromes, T-MACS), which include a single biomarker hs-cTnT...
March 16, 2017: Emergency Medicine Journal: EMJ
https://www.readbyqxmd.com/read/28302419/intravenous-15-isoflurane-lipid-nanoemulsion-for-general-anesthesia-in-dogs
#9
Claudio C Natalini, Carolina L Krahn, Priscila B S Serpa, Joanna E Griffith, Ricardo Miyasaka de Almeida
OBJECTIVE: To investigate the efficacy of a new intravenous (IV) nanoemulsified isoflurane formulation for maintenance of general anesthesia in dogs. STUDY DESIGN: Prospective, crossover, experimental study. ANIMALS: Seven healthy, mature, mixed-breed dogs, three male and four female, weighing 11.5 ± 1.5 kg. METHODS: Anesthesia was induced with propofol for instrumentation. Measurements were obtained before administration of either inhaled isoflurane (Iso-I) or IV 15% isoflurane-loaded lipid nanoemulsion (Iso-nano)...
January 7, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28302178/laser-peripheral-iridotomy-versus-laser-peripheral-iridotomy-plus-laser-peripheral-iridoplasty-in-the-treatment-of-multi-mechanism-angle-closure-study-protocol-for-a-randomized-controlled-trial
#10
Shida Chen, Jianhua Lv, Sujie Fan, Hong Zhang, Lin Xie, Ling Xu, Bing Jiang, Huipin Yuan, Yuanbo Liang, Shuning Li, Pingyan Chen, Xiulan Zhang, Ningli Wang
BACKGROUND: China has the largest burden of primary angle-closure glaucoma (PACG) worldwide. The mechanism of the angle closure is complex and includes pupillary block and non-pupillary block. Currently, opinion is that laser peripheral iridotomy (LPI) alone is not sufficient to prevent disease progression. Laser peripheral iridoplasty (LPIP) is an alternative and effective way of widening the angle recess in eyes that are affected by primary angle closure (PAC). However, it is not known if greater benefit would be achieved using LPI plus LPIP for PAC with multiple mechanisms (MAC)...
March 17, 2017: Trials
https://www.readbyqxmd.com/read/28297918/energy-partition-scale-by-scale-in-magnetic-archimedes-coriolis-weak-wave-turbulence
#11
A Salhi, F S Baklouti, F Godeferd, T Lehner, C Cambon
Magnetic Archimedes Coriolis (MAC) waves are omnipresent in several geophysical and astrophysical flows such as the solar tachocline. In the present study, we use linear spectral theory (LST) and investigate the energy partition, scale by scale, in MAC weak wave turbulence for a Boussinesq fluid. At the scale k^{-1}, the maximal frequencies of magnetic (Alfvén) waves, gravity (Archimedes) waves, and inertial (Coriolis) waves are, respectively, V_{A}k,N, and f. By using the induction potential scalar, which is a Lagrangian invariant for a diffusionless Boussinesq fluid [Salhi et al...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28296202/dna-methylation-imprinting-errors-in-spermatogenic-cells-from-maturation-arrest-azoospermic-patients
#12
P I Marques, S Fernandes, F Carvalho, A Barros, M Sousa, C J Marques
Imprinting errors have been described in spermatozoa from infertile patients with oligozoospermia and azoospermia. However, little is known about methylation of imprinted genes in other spermatogenic cells from azoospermic patients. Therefore, we aimed to evaluate the methylation status of single CpGs located in the differentially methylated regions (DMRs) of two imprinted genes, one paternally (H19) and one maternally (MEST) methylated, in primary spermatocytes of azoospermic patients presenting complete (MAc, n = 7) and incomplete (MAi, n = 8) maturation arrest, as well as in other spermatogenic cells from MAi patients that presented focus of complete spermatogenesis in some seminiferous tubules...
March 10, 2017: Andrology
https://www.readbyqxmd.com/read/28295629/increased-mid-abdominal-circumference-is-a-predictor-for-surgical-wound-complications-in-kidney-transplant-recipients-a-prospective-cohort-study
#13
M Taha, N F Davis, R Power, P Mohan, J Forde, G Smyth, D M Little
Kidney transplant recipients are at an increased risk of developing surgical site wound complications due to their immunosuppressed status. We aimed to determine if increased mid-abdominal circumference (MAC) is predictive for wound complications in transplant recipients. A prospective study was performed on all kidney transplant recipients from October 2014 to October 2015. 'Controls' consisted of kidney transplant recipients without a surgical site wound complication and 'cases' consisted of recipients that developed a wound complication...
March 15, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28295580/specpad-device-independent-nmr-data-visualization-and-processing-based-on-the-novel-dart-programming-language-and-html5-web-technology
#14
Bruno Guigas
SpecPad is a new device-independent software program for the visualization and processing of one- and two-dimensional NMR time domain (FID) and frequency domain (spectrum) data. It is the result of a project to investigate whether the novel programming language DART, in combination with Html5 Web technology, forms a suitable base to write an NMR data evaluation software which runs on modern computing devices such as Android, iOS, and Windows tablets as well as on Windows, Linux, and Mac OS X desktop PCs and notebooks...
March 12, 2017: Magnetic Resonance in Chemistry: MRC
https://www.readbyqxmd.com/read/28292981/vaginal-heparan-sulfate-linked-to-neutrophil-dysfunction-in-the-acute-inflammatory-response-associated-with-experimental-vulvovaginal-candidiasis
#15
Junko Yano, Mairi C Noverr, Paul L Fidel
Despite acute inflammation by polymorphonuclear neutrophils (PMNs) during vulvovaginal candidiasis (VVC), clearance of Candida fails to occur. The purpose of this study was to uncover the mechanism of vaginal PMN dysfunction. Designs included assessing PMN migration, proinflammatory mediators, and tissue damage (by analysis of the activity of lactate dehydrogenase [LDH]) in mice susceptible (C3H/HeN-C57BL/6) or resistant (CD-1) to chronic VVC (CVVC-S or CVVC-R) and testing morphology-specific Candida albicans strains under conditions of preinduced PMN migration (CVVC-S mice) or PMN depletion (CVVC-R mice)...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28291762/the-xchemexplorer-graphical-workflow-tool-for-routine-or-large-scale-protein-ligand-structure-determination
#16
Tobias Krojer, Romain Talon, Nicholas Pearce, Patrick Collins, Alice Douangamath, Jose Brandao-Neto, Alexandre Dias, Brian Marsden, Frank von Delft
XChemExplorer (XCE) is a data-management and workflow tool to support large-scale simultaneous analysis of protein-ligand complexes during structure-based ligand discovery (SBLD). The user interfaces of established crystallographic software packages such as CCP4 [Winn et al. (2011), Acta Cryst. D67, 235-242] or PHENIX [Adams et al. (2010), Acta Cryst. D66, 213-221] have entrenched the paradigm that a `project' is concerned with solving one structure. This does not hold for SBLD, where many almost identical structures need to be solved and analysed quickly in one batch of work...
March 1, 2017: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/28291631/distribution-and-clinical-significance-of-mycobacterium-avium-complex-species-isolated-from-respiratory-specimens
#17
Su-Young Kim, Sun Hye Shin, Seong Mi Moon, Bumhee Yang, Hojoong Kim, O Jung Kwon, Hee Jae Huh, Chang-Seok Ki, Nam Yong Lee, Sung Jae Shin, Won-Jung Koh
Mycobacterium avium complex (MAC) was originally composed of 2 species, M. avium and M. intracellulare. However, several new species closely related to M. intracellulare have recently been identified. In addition, M. avium has been further subdivided into 4 subspecies. The aim of this study was to determine the proportion of different MAC species recovered from respiratory specimens and to elucidate the clinical relevance of these species. Clinical isolates, from 219 patients, that had been initially identified as M...
March 2, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28291366/enantioselective-iridium-catalyzed-allylic-alkylation-reactions-of-masked-acyl-cyanide-equivalents
#18
J Caleb Hethcox, Samantha E Shockley, Brian M Stoltz
The first enantioselective iridium-catalyzed allylic alkylation reaction of a masked acyl cyanide (MAC) reagent has been developed. The transformation allows for the use of an umpoled synthon, which serves as a carbon monoxide equivalent. The reaction proceeds with good yield and excellent selectivity up to gram scale for a wide range of substituted allylic electrophiles, delivering products amenable to the synthesis of highly desirable, enantioenriched vinylated α-aryl carbonyl derivatives.
March 14, 2017: Organic Letters
https://www.readbyqxmd.com/read/28290764/twelve-week-exercise-influences-memory-complaint-but-not-memory-performance-in-older-adults-a-randomized-controlled-study
#19
Enzo Iuliano, Giovanni Fiorilli, Giovanna Aquino, Alfonso Di Costanzo, Giuseppe Calcagno, Alessandra di Cagno
This study aimed to evaluate the effects of different types of exercise on memory performance and memory complaint after 12-week intervention. Eighty community-dwelling volunteers, aged 66.96 ± 11.73 years, were randomly divided into four groups: resistance, cardiovascular, postural and control groups (20 participants for each group). All participants were tested for their cognitive functions before and after their respective 12-weeks intervention using Rey memory words test, Prose memory test, and Memory Complaint Questionnaire (MAC-Q)...
March 14, 2017: Journal of Aging and Physical Activity
https://www.readbyqxmd.com/read/28289643/effect-of-intravenous-infusion-of-g-csf-mobilized-peripheral-blood-mononuclear-cells-on-upper-extremity-function-in-cerebral-palsy-children
#20
Kyeong Il Park, Young-Ho Lee, Wee-Jin Rah, Seung Hwi Jo, Si-Bog Park, Seung Hoon Han, Hani Koh, Jin Young Suh, Jang Soo Um, Eun Hye Choi, Un Jin Park, Mi Jung Kim
OBJECTIVE: To investigate the effect of intravenous infusion of peripheral blood mononuclear cells (mPBMC) mobilized by granulocyte-colony stimulating factor (G-CSF) on upper extremity function in children with cerebral palsy (CP). METHODS: Fifty-seven children with CP were enrolled. Ten patients were excluded due to follow-up loss. In total, 47 patients (30 males and 17 females) were analyzed. All patients' parents provided signed consent before the start of the study...
February 2017: Annals of Rehabilitation Medicine
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