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https://www.readbyqxmd.com/read/29054609/estimating-the-l5s1-flexion-extension-moment-in-symmetrical-lifting-using-a-simplified-ambulatory-measurement-system
#1
Axel S Koopman, Idsart Kingma, Gert S Faber, Jonas Bornmann, Jaap H van Dieën
Mechanical loading of the spine has been shown to be an important risk factor for the development of low-back pain. Inertial motion capture (IMC) systems might allow measuring lumbar moments in realistic working conditions, and thus support evaluation of measures to reduce mechanical loading. As the number of sensors limits applicability, the objective of this study was to investigate the effect of the number of sensors on estimates of L5S1 moments. Hand forces, ground reaction forces (GRF) and full-body kinematics were measured using a gold standard (GS) laboratory setup...
October 12, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29037225/yap-transcriptionally-regulates-cox-2-expression-and-gccsysm-4-g-4-a-dual-yap-cox-2-inhibitor-overcomes-drug-resistance-in-colorectal-cancer
#2
Wei Li, Yuanyuan Cao, Jinling Xu, Ying Wang, Weijie Li, Qian Wang, Ziwei Hu, Yaping Hao, Li Hu, Yawen Sun, Guanglin Xu, Guizhen Ao
BACKGROUND: Chemotherapy resistance remains a major challenge in cancer treatment. COX-2 (cyclooxygenase 2) is involved in drug resistance and poor prognosis of many neoplastic diseases or cancers. However, investigations identifying new modulators of COX-2 pathway and searching for new chemicals targeting these valid resistant biomarkers are still greatly needed. METHODS: HCT15, HCT-116, HT-29, COLO205, FHC, IMCE, SW480 cell lines were used to detect the expression of YAP and COX-2...
October 16, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29023506/exopolysaccharides-regulate-calcium-flow-in-cariogenic-biofilms
#3
Monika Astasov-Frauenhoffer, Muth M Varenganayil, Alan W Decho, Tuomas Waltimo, Olivier Braissant
Caries-associated biofilms induce loss of calcium from tooth surfaces in the presence of dietary carbohydrates. Exopolysaccharides (EPS) provide a matrix scaffold and an abundance of primary binding sites within biofilms. The role of EPS in binding calcium in cariogenic biofilms is only partially understood. Thus, the aim of the present study is to investigate the relationship between the calcium dissolution rates and calcium tolerance of caries-associated bacteria and yeast as well as to examine the properties of EPS to quantify its binding affinity for dissolved calcium...
2017: PloS One
https://www.readbyqxmd.com/read/29022389/the-composition-and-metabolism-of-faecal-microbiota-is-specifically-modulated-by-different-dietary-polysaccharides-and-mucin-an-isothermal-microcalorimetry-study
#4
K Adamberg, K Kolk, M Jaagura, R Vilu, S Adamberg
The metabolic activity of colon microbiota is specifically affected by fibres with various monomer compositions, degree of polymerisation and branching. The supply of a variety of dietary fibres assures the diversity of gut microbial communities considered important for the well-being of the host. The aim of this study was to compare the impact of different oligo- and polysaccharides (galacto- and fructooligosaccharides, resistant starch, levan, inulin, arabinogalactan, xylan, pectin and chitin), and a glycoprotein mucin on the growth and metabolism of faecal microbiota in vitro by using isothermal microcalorimetry (IMC)...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29021922/texture-feature-variability-in-ultrasound-video-of-the-atherosclerotic-carotid-plaque
#5
Christos P Loizou, Constantinos S Pattichis, Marios Pantziaris, Efthyvoulos Kyriacou, Andrew Nicolaides
The objective of this paper was to investigate texture feature variability in ultrasound video of the carotid artery during the cardiac cycle in an attempt to define new discriminatory biomarkers of the vulnerable plaque. More specifically, in this paper, 120 longitudinal ultrasound videos, acquired from 40 normal (N) subjects from the common carotid artery and 40 asymptomatic (A) and 40 symptomatic (S) subjects from the proximal internal carotid artery were investigated. The videos were intensity normalized and despeckled, and the intima-media complex (IMC) (from the N subjects) and the atherosclerotic carotid plaques (from the A and S subjects) were segmented from each video, in order to extract the M-mode image, and the texture features associated with cardiac states of systole and diastole...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28987993/corticomuscular-coherence-in-the-acute-and-subacute-phase-after-stroke
#6
Lisbeth Hoejkjaer Larsen, Ivan Chrilles Zibrandtsen, Troels Wienecke, Troels Wesenberg Kjaer, Mark Schram Christensen, Jens Bo Nielsen, Henning Langberg
OBJECTIVE: Stroke is one of the leading causes of physical disability due to damage of the motor cortex or the corticospinal tract. In the present study we set out to investigate the role of adaptations in the corticospinal pathway for motor recovery during the subacute phase after stroke. METHODS: We examined 19 patients with clinically diagnosed stroke and 18 controls. The patients had unilateral mild to moderate weakness of the hand. Each patient attended two sessions at approximately 3days (acute) and 38days post stroke (subacute)...
September 22, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28985225/disrupting-assembly-of-the-inner-membrane-complex-blocks-plasmodium-falciparum-sexual-stage-development
#7
Molly Parkyn Schneider, Boyin Liu, Philipp Glock, Annika Suttie, Emma McHugh, Dean Andrew, Steven Batinovic, Nicholas Williamson, Eric Hanssen, Paul McMillan, Marion Hliscs, Leann Tilley, Matthew W A Dixon
Transmission of malaria parasites relies on the formation of a specialized blood form called the gametocyte. Gametocytes of the human pathogen, Plasmodium falciparum, adopt a crescent shape. Their dramatic morphogenesis is driven by the assembly of a network of microtubules and an underpinning inner membrane complex (IMC). Using super-resolution optical and electron microscopies we define the ultrastructure of the IMC at different stages of gametocyte development. We characterize two new proteins of the gametocyte IMC, called PhIL1 and PIP1...
October 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28981633/impact-of-an-integrated-model-of-care-on-outcomes-of-patients-with-inflammatory-bowel-diseases-evidence-from-a-population-based-study
#8
Juan Nicolás Peña-Sánchez, Lisa M Lix, Gary F Teare, Wenbin Li, Sharyle A Fowler, Jennifer L Jones
Background and Aims: Studies evaluating the impact of integrated models of care [IMC] for inflammatory bowel disease [IBD] on disease-related outcomes are needed. We compared the risk of IBD-related outcomes and prescription medication claims between patients exposed and non-exposed to an IMC. Methods: A retrospective population-based matched cohort study was conducted between 2009 and 2015, using administrative health data of Saskatchewan, Canada. Patients aged 18+ years with a diagnosis of IBD were identified with a validated administrative definition...
August 2, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28979713/efficacy-and-safety-of-liquid-nitrogen-cryotherapy-for-treatment-of-barrett-s-esophagus
#9
Kristen Suchniak-Mussari, Charles E Dye, Matthew T Moyer, Abraham Mathew, Thomas J McGarrity, Eileen M Gagliardi, Jennifer L Maranki, John M Levenick
AIM: To evaluate the efficacy and safety of liquid nitrogen cryotherapy as a primary or rescue treatment for BE, with and without dysplasia, or intramucosal adenocarcinoma (IMC). METHODS: This was a retrospective, single-center study carried out in a tertiary care center including 45 patients with BE who was treatment-naïve or who had persistent intestinal metaplasia (IM), dysplasia, or IMC despite prior therapy. Barrett's mucosa was resected via EMR when clinically appropriate, then patients underwent cryotherapy until eradication or until deemed to have failed treatment...
September 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28967989/staining-of-frozen-and-formalin-fixed-paraffin-embedded-tissues-with-metal-labeled-antibodies-for-imaging-mass-cytometry-analysis
#10
Qing Chang, Olga Ornatsky, David Hedley
This unit describes protocols for labeling tissue sections using combinations of metal-tagged antibodies and an iridium-containing DNA intercalator for analysis by imaging mass cytometry. Imaging mass cytometry (IMC) allows the labeling of up to 40 individual markers simultaneously using antibody cocktails. We discuss labeling of both cryostat sections and sections from formalin-fixed, paraffin-embedded (FFPE) tissue blocks. The protocols are similar to those used for optical microscopy techniques, while allowing much higher complexity of analysis...
October 2, 2017: Current Protocols in Cytometry
https://www.readbyqxmd.com/read/28950351/phase-ii-randomized-trial-of-carboplatin-paclitaxel-bevacizumab-with-or-without-cixutumumab-imc-a12-in-patients-with-advanced-non-squamous-non-small-cell-lung-cancer-a-trial-of-the-ecog-acrin-cancer-research-group-e3508
#11
A Argiris, J W Lee, J Stevenson, M G Sulecki, V Hugec, N W Choong, J N Saltzman, W Song, R M Hansen, T L Evans, S S Ramalingam, J H Schiller
Background: Cixutumumab is a fully human IgG1 monoclonal antibody to the insulin-like growth factor type I receptor (IGF-IR) that can potentially reverse resistance and enhance the efficacy of chemotherapy. Methods: Bevacizumab-eligible patients with stage IV or recurrent non-squamous, non-small cell lung cancer (NSCLC) and good performance status were randomized to receive standard doses of paclitaxel, carboplatin, and bevacizumab to a maximum of 6 cycles followed by bevacizumab maintenance (CPB) until progression (arm A) or CPB plus cixutumumab 6 mg/kg IV weekly (arm B)...
September 18, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28928708/neural-patterns-of-reorganization-after-intensive-robot-assisted-virtual-reality-therapy-and-repetitive-task-practice-in-patients-with-chronic-stroke
#12
Soha Saleh, Gerard Fluet, Qinyin Qiu, Alma Merians, Sergei V Adamovich, Eugene Tunik
Several approaches to rehabilitation of the hand following a stroke have emerged over the last two decades. These treatments, including repetitive task practice (RTP), robotically assisted rehabilitation and virtual rehabilitation activities, produce improvements in hand function but have yet to reinstate function to pre-stroke levels-which likely depends on developing the therapies to impact cortical reorganization in a manner that favors or supports recovery. Understanding cortical reorganization that underlies the above interventions is therefore critical to inform how such therapies can be utilized and improved and is the focus of the current investigation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28898988/comparison-of-oncotype-dx-with-modified-magee-equation-recurrence-scores-in-low-grade-invasive-carcinoma-of-breast
#13
COMPARATIVE STUDY
Yanjun Hou, Debra L Zynger, Xiaoxian Li, Zaibo Li
Objectives: Several specific histologic types of invasive carcinoma of breast, including invasive tubular carcinoma (ITC), invasive mucinous carcinoma (IMC), and classical invasive lobular carcinoma (CILC), are considered low-grade carcinomas with favorable outcomes. We aimed to investigate the utility of Oncotype DX test in these tumors by comparing its recurrence score (RS) with the modified Magee equation RS. Methods: Oncotype DX RSs were collected and modified Magee equation RSs were calculated in 163 low-grade invasive breast carcinomas, including 105 CILCs, 41 ITCs, and 17 IMCs...
August 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28893625/improvement-in-the-water-solubility-of-drugs-with-a-solid-dispersion-system-by-spray-drying-and-hot-melt-extrusion-with-using-the-amphiphilic-polyvinyl-caprolactam-polyvinyl-acetate-polyethylene-glycol-graft-copolymer-and-d-mannitol
#14
Noriko Ogawa, Tomoki Hiramatsu, Ryohei Suzuki, Ryohei Okamoto, Kohei Shibagaki, Kosuke Fujita, Chisato Takahashi, Yoshiaki Kawashima, Hiromitsu Yamamoto
The aim of this study was to prepare and characterize solid dispersion particles with a novel amphiphilic polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer, as a water-soluble carrier. Solid dispersion particles were prepared by hot-melt extrusion and spray drying. Indomethacin (IMC) was used as a model comprising drugs with low solubility in water and d-mannitol (MAN) was used as an excipient. The physicochemical properties of prepared particles were characterized by scanning electron microscopy, thermal analysis, powder X-ray diffraction (PXRD) analysis, FTIR spectra analysis, and drug release studies...
September 8, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28874877/bone-regeneration-in-minipigs-by-intrafibrillarly-mineralized-collagen-loaded-with-autologous-periodontal-ligament-stem-cells
#15
Ci Zhang, Boxi Yan, Zhen Cui, Shengjie Cui, Ting Zhang, Xuedong Wang, Dawei Liu, Ruli Yang, Nan Jiang, Yanheng Zhou, Yan Liu
Biomimetic intrafibrillarly-mineralized collagen (IMC) is a promising scaffold for bone regeneration because of its structural and functional similarity to natural bone. The objective of this study was to evaluate the bone regeneration potential of IMC loaded with autologous periodontal ligament stem cells (PDLSCs) in large bone defects in minipigs. A macroporous IMC with a bone-like subfibrillar nanostructure was fabricated using a biomimetic bottom-up approach. Non-healing full thickness defects were established on the cranial bone in minipigs, and IMC and hydroxyapatite (HA) scaffolds seeded with autologous PDLSCs were implanted into these defects...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28838379/phase-ii-study-of-olaratumab-with-paclitaxel-carboplatin-p-c-or-p-c-alone-in-previously-untreated-advanced-nsclc
#16
David E Gerber, Paul Swanson, Ariel Lopez-Chavez, Lucas Wong, Afshin Dowlati, Nathan A Pennell, Damien M Cronier, Amy Qin, Robert Ilaria, Jan Cosaert, Ashwin Shahir, Maria Q Baggstrom
BACKGROUND: In non-small cell lung cancer (NSCLC), platelet-derived growth factor receptor (PDGFR) mediates angiogenesis, tissue invasion, and tumor interstitial pressure. Olaratumab (IMC-3G3) is a fully human anti-PDGFRα monoclonal antibody. This Phase II study assessed safety and efficacy of olaratumab+paclitaxel/carboplatin (P/C) versus P/C alone for previously untreated advanced NSCLC. MATERIALS AND METHODS: Patients received up to six 21-day cycles of P 200mg/m(2) and C AUC 6 (day 1)±olaratumab 15mg/kg (days 1 and 8)...
September 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28792440/interfacial-reaction-and-mechanical-properties-of-sn-bi-solder-joints
#17
Fengjiang Wang, Ying Huang, Zhijie Zhang, Chao Yan
Sn-Bi solder with different Bi content can realize a low-to-medium-to-high soldering process. To obtain the effect of Bi content in Sn-Bi solder on the microstructure of solder, interfacial behaviors in solder joints with Cu and the joints strength, five Sn-Bi solders including Sn-5Bi and Sn-15Bi solid solution, Sn-30Bi and Sn-45Bi hypoeutectic and Sn-58Bi eutectic were selected in this work. The microstructure, interfacial reaction under soldering and subsequent aging and the shear properties of Sn-Bi solder joints were studied...
August 9, 2017: Materials
https://www.readbyqxmd.com/read/28776899/an-alternative-sterility-assessment-for-parenteral-drug-products-using-isothermal-microcalorimetry
#18
D Brueckner, S Krähenbühl, U Zuber, G Bonkat, O Braissant
AIMS: Production and release of injectable drug solutions are highly regulated since the administration of injectables bypasses natural body barriers. The sterility test is the last opportunity of product quality assessment. However, sterility is currently assessed by visual inspection (VI) that is time consuming and somewhat subjective. Therefore, we assessed isothermal microcalorimetry (IMC) as a replacement for the VI of the filtration based state-of-the-art sterility control. METHODS AND RESULTS: We used ATCC strains and house isolates to artificially contaminate frequently produced monoclonal antibodies (Avastin, Mabthera, Herceptin)...
August 4, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28776393/superiority-of-amino-modified-chiral-mesoporous-silica-nanoparticles-in-delivering-indometacin
#19
Jing Li, Yingyu Guo, Heran Li, Lei Shang, Sanming Li
The present study established indometacin (IMC) delivery system with chiral mesoporous silica nanoparticles (CMSNs) and amino-modified chiral mesoporous silica nanoparticles (Amino-CMSNs) that previously reported as pharmaceutical excipients, and their systemic biological effects, mainly consisting of in vitro drug intestinal permeability, haemolysis assay, in vivo pharmacokinetics, anti-inflammation pharmacodynamics and gastric irritation, were addressed. It turned out that the two IMC delivery systems established by CMSN and Amino-CMSN significantly improved drug intestinal permeability due to the improved drug dissolution caused by conversion of drug crystalline state to amorphous phase...
August 4, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28772917/effects-of-cuznal-particles-on-properties-and-microstructure-of-sn-58bi-solder
#20
Fan Yang, Liang Zhang, Zhi-Quan Liu, Su Juan Zhong, Jia Ma, Li Bao
With the purpose of improving the properties of the Sn-58Bi lead-free solder, micro-CuZnAl particles ranging from 0 to 0.4 wt % were added into the low temperature eutectic Sn-58Bi lead-free solder. After the experimental testing of micro-CuZnAl particles on the properties and microstructure of the Sn-58Bi solders, it was found that the wettability of the Sn-58Bi solders was obviously improved with addition of CuZnAl particles. When the addition of CuZnAl particles was 0.2 wt %, the wettability of the Sn-58Bi solder performed best...
May 19, 2017: Materials
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