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https://www.readbyqxmd.com/read/27916560/thinning-of-articular-cartilage-after-joint-unloading-or-immobilization-an-experimental-investigation-of-the-pathogenesis-in-mice
#1
Masato Nomura, Naoyoshi Sakitani, Hiroyuki Iwasawa, Yuta Kohara, Shoko Takano, Yoshio Wakimoto, Hiroshi Kuroki, Hideki Moriyama
OBJECTIVE: Moderate mechanical stress generated by normal joint loading and movement is essential for the maintenance of healthy articular cartilage. However, the effects of reduced loading caused by the absence of weight bearing or joint motion on articular cartilage and subchondral bone is still poorly understood. We aimed to characterize morphological and metabolic responses of articular cartilage and subchondral bone to decreased mechanical stress in vivo. METHODS: Mice were subjected to periods of hindlimb unloading by tail suspension or external fixation of the knee joints...
December 1, 2016: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/27913657/cost-benefit-analysis-of-telehealth-in-pre-hospital-care
#2
James R Langabeer, Tiffany Champagne-Langabeer, Diaa Alqusairi, Junghyun Kim, Adria Jackson, David Persse, Michael Gonzalez
OBJECTIVE: There has been very little use of telehealth in pre-hospital emergency medical services (EMS), yet the potential exists for this technology to transform the current delivery model. In this study, we explore the costs and benefits of one large telehealth EMS initiative. METHODS: Using a case-control study design and both micro- and gross-costing data from the Houston Fire Department EMS electronic patient care record system, we conducted a cost-benefit analysis (CBA) comparing costs with potential savings associated with patients treated through a telehealth-enabled intervention...
December 2, 2016: Journal of Telemedicine and Telecare
https://www.readbyqxmd.com/read/27910407/anisotropic-contrast-optical-microscope
#3
D Peev, T Hofmann, N Kananizadeh, S Beeram, E Rodriguez, S Wimer, K B Rodenhausen, C M Herzinger, T Kasputis, E Pfaunmiller, A Nguyen, R Korlacki, A Pannier, Y Li, E Schubert, D Hage, M Schubert
An optical microscope is described that reveals contrast in the Mueller matrix images of a thin, transparent, or semi-transparent specimen located within an anisotropic object plane (anisotropic filter). The specimen changes the anisotropy of the filter and thereby produces contrast within the Mueller matrix images. Here we use an anisotropic filter composed of a semi-transparent, nanostructured thin film with sub-wavelength thickness placed within the object plane. The sample is illuminated as in common optical microscopy but the light is modulated in its polarization using combinations of linear polarizers and phase plate (compensator) to control and analyze the state of polarization...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27903757/beyond-hand-hygiene-a-qualitative-study-of-the-everyday-work-of-preventing-cross-contamination-on-hospital-wards
#4
Su-Yin Hor, Claire Hooker, Rick Iedema, Mary Wyer, Gwendolyn L Gilbert, Christine Jorm, Matthew Vincent Neil O'Sullivan
BACKGROUND: Hospital-acquired infections are the most common adverse event for inpatients worldwide. Efforts to prevent microbial cross-contamination currently focus on hand hygiene and use of personal protective equipment (PPE), with variable success. Better understanding is needed of infection prevention and control (IPC) in routine clinical practice. METHODS: We report on an interventionist video-reflexive ethnography study that explored how healthcare workers performed IPC in three wards in two hospitals in New South Wales, Australia: an intensive care unit and two general surgical wards...
November 30, 2016: BMJ Quality & Safety
https://www.readbyqxmd.com/read/27900336/optimal-lateral-row-anchor-positioning-in-posterior-superior-transosseous-equivalent-rotator-cuff-repair-a-micro-computed-tomography-study
#5
Matthias A Zumstein, Sumit Raniga, Agatha Labrinidis, Kevin Eng, Gregory I Bain, Beat K Moor
BACKGROUND: The optimal placement of suture anchors in transosseous-equivalent (TOE) double-row rotator cuff repair remains controversial. PURPOSE: A 3-dimensional (3D) high-resolution micro-computed tomography (micro-CT) histomorphometric analysis of cadaveric proximal humeral greater tuberosities (GTs) was performed to guide optimal positioning of lateral row anchors in posterior-superior (infraspinatus and supraspinatus) TOE rotator cuff repair. STUDY DESIGN: Descriptive laboratory study...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27899092/dysregulation-of-hepatic-microrna-expression-profiles-with-clonorchis-sinensis-infection
#6
Su Han, Qiaoran Tang, Xi Lu, Rui Chen, Yihong Li, Jing Shu, Xiaoli Zhang, Jianping Cao
BACKGROUND: Clonorchiasis remains an important zoonotic parasitic disease worldwide. The molecular mechanisms of host-parasite interaction are not fully understood. Non-coding microRNAs (miRNAs) are considered to be key regulators in parasitic diseases. The regulation of miRNAs and host micro-environment may be involved in clonorchiasis, and require further investigation. METHODS: MiRNA microarray technology and bioinformatic analysis were used to investigate the regulatory mechanisms of host miRNA and to compare miRNA expression profiles in the liver tissues of control and Clonorchis sinensis (C...
November 30, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27892836/comparison-of-internal-adaptation-in-class-ii-bulk-fill-composite-restorations-using-micro-ct
#7
S H Han, S H Park
PURPOSE: This study compared the internal adaptation of bulk-fill composite restorations in class II cavities and explored the relationship between internal adaptation and polymerization shrinkage or stress. METHODS AND MATERIALS: Standardized mesio-occluso-distal cavities were prepared in 40 extracted human third molars and randomly divided into five groups (n=8). After having been applied by total-etch XP bond (Dentsply Caulk, Milford, DE, USA) and light curing, the teeth were restored with the following resin composites: group 1, Filtek Z350 (3M ESPE, St...
November 28, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27882018/role-of-bevacizumab-in-the-prevention-of-early-postoperative-haemorrhage-after-25-gauge-microincision-vitrectomy-surgery
#8
Zaheer Sultan, Syed Fawad Rizvi, Faisal Murtaza Qureshi, Syed Asaad Mahmood
OBJECTIVE: To evaluate the effect of preoperative intravitreal bevacizumab injection on the incidence of postoperative haemorrhage and visual prognosis, in patients undergoing 25-gauge micro incision vitrectomy surgery (MIVS) for diabetic vitreous haemorrhage. METHODS: One hundred and twenty two eyes of 122 patients of diabetic retinopathy of both genders and aged over 18 years, who presented with non-resolving vitreous haemorrhage were enrolled for this study. All patients received an intravitreal injection of 1...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27874850/a-microarray-whole-genome-gene-expression-dataset-in-a-rat-model-of-inflammatory-corneal-angiogenesis
#9
Anthony Mukwaya, Jessica M Lindvall, Maria Xeroudaki, Beatrice Peebo, Zaheer Ali, Anton Lennikov, Lasse Dahl Ejby Jensen, Neil Lagali
In angiogenesis with concurrent inflammation, many pathways are activated, some linked to VEGF and others largely VEGF-independent. Pathways involving inflammatory mediators, chemokines, and micro-RNAs may play important roles in maintaining a pro-angiogenic environment or mediating angiogenic regression. Here, we describe a gene expression dataset to facilitate exploration of pro-angiogenic, pro-inflammatory, and remodelling/normalization-associated genes during both an active capillary sprouting phase, and in the restoration of an avascular phenotype...
November 22, 2016: Scientific Data
https://www.readbyqxmd.com/read/27871909/histone-deacetylase-inhibition-enhances-in-vivo-bone-regeneration-induced-by-human-periodontal-ligament-cells
#10
Nam Cong-Nhat Huynh, Vincent Everts, Akira Nifuji, Prasit Pavasant, Ruchanee Salingcarnboriboon Ampornaramveth
: Periodontal ligament cells have the potential to differentiate into bone forming osteoblasts and thus represent a good cellular candidate for bone regeneration. This study aimed to investigate the effect of inhibition of histone deacetylases, using the inhibitor Trichostatin A (TSA), on bone regeneration by human periodontal ligament cells (hPDLCs) in a mouse calvaria bone defect. METHODS: RUNX2 protein and its acetylation was analyzed by immunoprecipitation and western blotting...
November 18, 2016: Bone
https://www.readbyqxmd.com/read/27868475/collision-count-in-rugby-union-a-comparison-of-micro-technology-and-video-analysis-methods
#11
Cillian Reardon, Daniel P Tobin, Peter Tierney, Eamonn Delahunt
The aim of our study was to determine if there is a role for manipulation of g force thresholds acquired via micro-technology for accurately detecting collisions in rugby union. In total, 36 players were recruited from an elite Guinness Pro12 rugby union team. Player movement profiles and collisions were acquired via individual global positioning system (GPS) micro-technology units. Players were assigned to a sub-category of positions in order to determine positional collision demands. The coding of collisions by micro-technology at g force thresholds between 2 and 5...
November 21, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27864059/biosynthesis-and-physicochemical-characterization-of-a-bacterial-polysaccharide-polyamide-blend-applied-for-microfluidics-study-in-porous-media
#12
Maryam Ijadi Bajestani, Seyyed Mohammad Mousavi, Arezou Jafari, Seyed Abbas Shojaosadati
Screening among some new isolated bacteria from oily samples, which were capable of producing extracellular polymeric substances (EPSs), one was selected and identified as Bacillus sonorensis. An efficient micro-total analysis approach was carried out to assay the produced EPSs by this bacterium. Sucrose and yeast concentrations as carbon and nitrogen sources, respectively, sodium salt concentration and initial pH were selected to be the variables in experimental design. Production of EPS in optimal condition was increased by 5...
November 15, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27859535/marker-based-technique-for-visualizing-radiolucent-implant-components-in-radiographic-imaging
#13
Kimberley Lam-Tin-Cheung, Xunhua Yuan, Hristo N Nikolov, Brent A Lanting, Douglas D Naudie, Matthew G Teeter
Radiography is the predominant imaging modality used for the in-vivo analysis of orthopaedic implants. A major disadvantage of radiography is that the articulating joint components that are composed of radiolucent polyethylene cannot be directly visualized. Current strategies attempt to circumvent this limitation by estimating component positions and simplifying the joint system, however, these approaches lead to a number of associated errors. Thus, this study provides a method to enable the visualization of the polyethylene component of total knee replacements in radiographic images...
November 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27857867/dna-methylation-signature-of-post-injury-neointimal-cells-during-vascular-remodeling-in-the-rat-balloon-injury-model
#14
Jendai Richards, Henry Ato Ogoe, Wenzhi Li, Oguljahan Babayewa, Wei Xu, Tameka Bythwood, Minerva Garcia-Barrios, Li Ma, Qing Song
Vascular smooth muscle cell (VSMC) accumulation in the neointimal is a common feature in vascular diseases such as atherosclerosis, transplant arteriosclerosis and restenosis. In this study, we isolated the neointimal cells and uninjured residential vascular smooth muscle cells by laser micro dissection and carried out single-cell whole-genome methylation sequencing. We also sequenced the bisulfite converted genome of circulating bone-marrow-derived cells such as peripheral blood mononuclear cells (PBMC) and bone marrow mononuclear cells (BMMC)...
July 2016: Molecular Biology (Los Angeles, Calif.)
https://www.readbyqxmd.com/read/27847503/changes-of-the-bacterial-abundance-and-communities-in-shallow-ice-cores-from-dunde-and-muztagata-glaciers-western-china
#15
Yong Chen, Xiang-Kai Li, Jing Si, Guang-Jian Wu, Li-De Tian, Shu-Rong Xiang
In this study, six bacterial community structures were analyzed from the Dunde ice core (9.5-m-long) using 16S rRNA gene cloning library technology. Compared to the Muztagata mountain ice core (37-m-long), the Dunde ice core has different dominant community structures, with five genus-related groups Blastococcus sp./Propionibacterium, Cryobacterium-related., Flavobacterium sp., Pedobacter sp., and Polaromas sp. that are frequently found in the six tested ice layers from 1990 to 2000. Live and total microbial density patterns were examined and related to the dynamics of physical-chemical parameters, mineral particle concentrations, and stable isotopic ratios in the precipitations collected from both Muztagata and Dunde ice cores...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27843021/a-microfluidic-approach-to-water-rock-interactions-using-thin-rock-sections-pb-and-u-sorption-onto-thin-shale-and-granite-sections
#16
Youn Soo Oh, Ho Young Jo, Ji-Hun Ryu, Geon-Young Kim
The feasibility of using microfluidic tests to investigate water-rock (mineral) interactions in fractures regarding sorption onto thin rock sections (i.e., shale and granite) of lead (Pb) and uranium (U) was evaluated using a synthetic PbCl2 solution and uranium-containing natural groundwater as fluids. Effluent composition and element distribution on the thin rock sections before and after microfluidic testing were analyzed. Most Pb removal (9.8mg/cm(2)) occurred within 3.5h (140 PVF), which was 74% of the total Pb removal (13...
October 31, 2016: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/27834745/altered-expression-of-long-noncoding-rnas-in-blood-after-ischemic-stroke-and-proximity-to-putative-stroke-risk-loci
#17
Cheryl Dykstra-Aiello, Glen C Jickling, Bradley P Ander, Natasha Shroff, Xinhua Zhan, DaZhi Liu, Heather Hull, Miles Orantia, Boryana S Stamova, Frank R Sharp
BACKGROUND AND PURPOSE: Although peripheral blood mRNA and micro-RNA change after ischemic stroke, any role for long noncoding RNA (lncRNA), which comprise most of the genome and have been implicated in various diseases, is unknown. Thus, we hypothesized that lncRNA expression also changes after stroke. METHODS: lncRNA expression was assessed in 266 whole-blood RNA samples drawn once per individual from patients with ischemic stroke and matched with vascular risk factor controls...
December 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/27833513/plasma-and-urinary-type-iv-collagen-levels-for-early-detection-of-nephropathy-in-type-2-diabetes-mellitus-patients
#18
K Balu Mahendran, M Vijaya Bhaskar, K Santha, R Inmozhi, K K Perumal
BACKGROUND: Diabetic nephropathy is a major complication with high morbidity and mortality, and leads to end stage renal disease (ESRD). Type IV collagen is the main component of the glomerular basement membrane (GBM) and the extracellular matrix. The thickening of the GBM is due to accumulation of type IV collagen and alterations in its structure and composition. AIM: The aim of this study was to evaluate the association of plasma and urine type IV collagen with albuminuria status and to determine the clinical implications of type IV collagen as a marker in the early stage of diabetic nephropathy...
October 2016: International Journal of Health Sciences
https://www.readbyqxmd.com/read/27825276/prevalence-of-tetracycline-resistance-determinants-in-broiler-isolated-escherichia-coli-in-iran
#19
S Seifi, R Khoshbakht
Tetracycline resistance determinants are widespread among bacterial species. Resistance to tetracycline occurs by different mechanisms regulated by various genes. The study was conducted to determine the tetracycline resistance and prevalence of tetracycline resistance determinants among Escherichia coli strains isolated from broilers in northern Iran. Minimum inhibitory concentration (MIC) of tetracycline and susceptibility pattern of the isolates were screened using micro-dilution and disk diffusion methods, respectively...
November 9, 2016: British Poultry Science
https://www.readbyqxmd.com/read/27822563/development-of-an-immunofet-biosensor-for-the-detection-of-biotinylated-pcr-product
#20
Wannaporn Muangsuwan, Chamras Promptmas, Wutthinan Jeamsaksiri, Win Bunjongpru, Awirut Srisuwan, Charndet Hruanun, Amporn Poyai, Prapimpun Wongchitrat, Montri Yasawong
ImmunoFET (IMFET) biosensor is a simple platform for the detection of biotinylated products of polymerase chain reaction (PCR). Construction of the IMFET biosensor started with adsorption of 1.5 mg/mL of protein A (PA) onto the insulated gate surface of ISFET for 90 min. Next, the immobilized 1/500 dilution of anti-biotin antibody was adsorbed onto the PA layer for 60 min. The IMFET biosensor was subsequently ready for detection of the biotinylated amplicon. The IMFET biosensor showed highly specific binding to the biotinylated PCR product of the phaE gene of Haloquadratum walsbyi DSM 16854...
October 2016: Heliyon
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