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https://www.readbyqxmd.com/read/28651262/relationship-of-radiographic-osteoarthritis-severity-with%C3%A2-treatment-outcomes-after-imaging-guided-knee%C3%A2-injections-a-prospective-outcomes-study
#1
Ivan Miletic, Christoph Agten, Reto Sutter, Christian Pfirrmann, Cynthia Peterson
Introduction To be able to predict which patients are more likely to have a positive treatment outcome, the purpose of this study is 1: To compare outcomes after intra-articular corticosteroid knee injections with the Kellgren and Lawrence (KL) 5 and 3 grading systems for knee osteoarthritis, the Osteoarthritis Research Society International (OARSI) grading system and actual joint space measurements; and 2: To compare the reliability of these grading systems. Materials and Methods Knee radiographs of 117 patients who received intra-articular corticosteroid injections were independently evaluated by two radiologists blinded to the outcome...
June 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28650812/alpha-matting-with-kl-divergence-based-sparse-sampling
#2
Levent Karacan, Aykut Erdem, Erkut Erdem
In this paper, we present a new sampling-based alpha matting approach for the accurate estimation of foreground and background layers of an image. Previous sampling-based methods typically rely on certain heuristics in collecting representative samples from known regions, and thus their performance deteriorates if the underlying assumptions are not satisfied. To alleviate this, we take an entirely new approach and formulate sampling as a sparse subset selection problem where we propose to pick a small set of candidate samples that best explains the unknown pixels...
June 22, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28642333/patients-and-providers-perceptions-of-the-preventability-of-hospital-readmission-a-prospective-observational-study-in-four-european-countries
#3
Louise S van Galen, Mikkel Brabrand, Tim Cooksley, Peter M van de Ven, Hanneke Merten, Ralph Kl So, Loes van Hooff, Harm R Haak, Rachel M Kidney, Christian H Nickel, John Ty Soong, Immo Weichert, Mark Hh Kramer, Christian P Subbe, Prabath Wb Nanayakkara
OBJECTIVES: Because of fundamental differences in healthcare systems, US readmission data cannot be extrapolated to the European setting: To investigate the opinions of readmitted patients, their carers, nurses and physicians on predictability and preventability of readmissions and using majority consensus to determine contributing factors that could potentially foresee (preventable) readmissions. DESIGN: Prospective observational study. Readmitted patients, their carers, and treating professionals were surveyed during readmission to assess the discharge process and the predictability and preventability of the readmission...
June 22, 2017: BMJ Quality & Safety
https://www.readbyqxmd.com/read/28638679/decrease-of-serum-biomarker-of-type-ii-collagen-degradation-coll2-1-by-intra-articular-injection-of-an-autologous-plasma-rich-platelet-in-patients-with-unilateral-primary-knee-osteoarthritis
#4
Rasha Mohamed Fawzy, Nashwa Ismail Hashaad, Amira Ibrahim Mansour
OBJECTIVE: This study aimed to evaluate the effect of one dose of intra-articular injection of (PRP) in the knee joint on a specific osteoarthritis (OA) serum biomarker of cartilage degeneration, Collagen 2-1 (Coll2-1), over a short period of 3 months. The aim extended to clarify the effect of PRP on the functional status of the osteoarthritic knee joint. MATERIAL AND METHODS: Sixty patients with primary unilateral knee OA were enrolled in this study. They were subdivided according to Kellgren-Lawrence grading scale (KL) into (Group I): including patients with KL grade < 3 and (Group II): including patients with KL grade ≥3...
June 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/28633427/genotypic-variation-in-tolerance-to-drought-stress-is-highly-coordinated-with-hydraulic-conductivity-photosynthesis-interplay-and-aquaporin-expression-in-field-grown-mulberry-morus-spp
#5
Kanubothula Sitarami Reddy, Kalva Madhana Sekhar, Attipalli Ramachandra Reddy
Hydraulic conductivity quantifies the efficiency of a plant to transport water from root to shoot and is a major constriction on leaf gas exchange physiology. Mulberry (Morus spp.) is the most economically important crop for sericulture industry. In this study, we demonstrate a finely coordinated control of hydraulic dynamics on leaf gas exchange characteristics in 1-year-old field-grown mulberry genotypes (Selection-13 (S13); Kollegal Local (KL) and Kanva-2 (K2)) subjected to water stress by withholding water for 20 days and subsequent recovery for 7 days...
June 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28633165/investigation-of-biotransport-in-a-tumor-with-uncertain-material-properties-using-a-non-intrusive-spectral-uncertainty-quantification-method
#6
Alen Alexanderian, Liang Zhu, Maher Salloum, Ronghui Ma, Meilin Yu
In this study, statistical models are developed for modeling uncertain heterogeneous permeability and porosity in tumors, and the resulting uncertainties in pressure and velocity fields during an intratumoral injection are quantified using a non-intrusive spectral uncertainty quantification (UQ) method. Specifically, the uncertain permeability is modeled as a log-Gaussian random field, represented using a truncated Karhunen-Loeve (KL) expansion, and the uncertain porosity is modeled as a log-normal random variable...
June 20, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28628245/effects-of-resistance-training-using-known-vs-unknown-loads-on-eccentric-phase-adaptations-and-concentric-velocity
#7
Jose Luis Hernández-Davó, Rafael Sabido, David G Behm, Anthony J Blazevich
The aims of this study were to compare both eccentric- and concentric-phase adaptations in highly-trained handball players to 4 weeks of twice-weekly rebound bench press throw training with varying loads (30%, 50% and 70% of 1-repetition maximum [1-RM]) using either known (KL) or unknown (UL) loads, and to examine the relationship between changes in eccentric- and concentric-phase performance. Twenty-eight junior team-handball players were divided into two experimental groups (KL or UL) and a control group...
June 19, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28615629/effect-of-microgravity-on-aromatase-expression-in-sertoli-cells
#8
Elisa Cirelli, Emanuela De Domenico, Flavia Botti, Renato Massoud, Raffaele Geremia, Paola Grimaldi
Cytochrome P450-aromatase catalyzes estrogen biosynthesis from C19 steroids. In the testis, Sertoli cells express P450-aromatase and represent the primary source of estrogen during prepuberal age. This study focused on the effect of simulated microgravity (SM) on aromatase expression in primary mouse Sertoli cells. When cultured in Rotary Cell Culture System (RCCS), Sertoli cells, formed multicellular three dimensional spheroids (3D). Biological properties were first analyzed in terms of viability, cell cycle, expression of cytoskeletal components and growth factors in comparison to Sertoli cells cultured in spheroids at unit gravity (G)...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615093/-overexpression-of-klotho-inhibits-differentiation-of-raw264-7-cells-into-osteoclasts
#9
Feng Xu, Houxun Ma, Baoshan Li, Bi Xiao, Qian Huang, Xiao Liang
Objective To explore the effect of overexpression of Klotho (KL) on the differentiation of RAW264.7 cells intoosteoclasts induced by soluble receptor activator of nuclear factor-κB ligand ( sRANKL). Methods The RAW264.7 cells were divided into Ad-KL group, Ad-GFP group and control group. Inverted microscope was used to observe KL transfected cells. Quantitative real-time PCR (qRT-PCR) and Western blotting were used to detect mRNA and protein expression level of KL, respectively. Tartrate-resistant acidphosphatase (TRAP) staining was applied to observe the osteoclast differentiation and maturation...
June 2017: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/28614933/-study-on-the-establishment-of-hmld-model-and-the-expression-of-kl-6-tgf-beta-in-rat
#10
Z S Zhang, Y F Zhao, L Tang, H K Xie, D Y Sun
Objective: To establish an animal model of hard metal lung disease (HMLD) in rats, and to screen the indications for diagnosis of HMLD. Methods: The rats were randomly divided into 5 groups, each group included 8 rats: saline group, pure cobalt group, pure tungsten carbide group, silica group and hard metal (HM) group. 10 mg subjects were administered in each group by using the pulmonary endotracheal tube. After 8 week, the lung CT scan and lung tissue pathology were observed, the serum and bronchoalveolar lavage fluid (BALF) were collected for KL-6, TGF-beta1 and TGF-beta2...
April 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28603049/ethnicity-influences-phenotype-and-outcomes-in-inflammatory-bowel-disease-a-systematic-review-and-meta-analysis-of-population-based-studies
#11
Haiyun Shi, Alexander N Levy, Hirsh D Trivedi, Francis Kl Chan, Siew C Ng, Ashwin N Ananthakrishnan
INTRODUCTION: Inflammatory bowel diseases (IBD; Crohn's disease (CD), ulcerative colitis (UC)) are global diseases. Similarities and differences in disease presentation and outcomes across different geographic regions and ethnic groups have not been compared previously. METHODS: We performed a systematic review and meta-analysis of population based cohort studies examining the phenotype and outcome of IBD across ethnic groups, categorized as Whites, Blacks, Hispanics and Asians...
June 8, 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28599116/direct-estimation-of-the-derivative-of-quadratic-mutual-information-with-application-in-supervised-dimension-reduction
#12
Voot Tangkaratt, Hiroaki Sasaki, Masashi Sugiyama
A typical goal of linear-supervised dimension reduction is to find a low-dimensional subspace of the input space such that the projected input variables preserve maximal information about the output variables. The dependence-maximization approach solves the supervised dimension-reduction problem through maximizing a statistical dependence between projected input variables and output variables. A well-known statistical dependence measure is mutual information (MI), which is based on the Kullback-Leibler (KL) divergence...
June 9, 2017: Neural Computation
https://www.readbyqxmd.com/read/28596300/clear-cell-renal-cell-carcinoma-is-linked-to-epithelial-to-mesenchymal-transition-and-to-fibrosis
#13
Lea Landolt, Øystein Eikrem, Philipp Strauss, Andreas Scherer, David H Lovett, Christian Beisland, Kenneth Finne, Tarig Osman, Mohammad M Ibrahim, Gro Gausdal, Lavina Ahmed, James B Lorens, Jean Paul Thiery, Tuan Zea Tan, Miroslav Sekulic, Hans-Peter Marti
Clear cell renal cell carcinoma (ccRCC) represents the most common type of kidney cancer with high mortality in its advanced stages. Our study aim was to explore the correlation between tumor epithelial-to-mesenchymal transition (EMT) and patient survival. Renal biopsies of tumorous and adjacent nontumorous tissue were taken with a 16 g needle from our patients (n = 26) undergoing partial or radical nephrectomy due to ccRCC RNA sequencing libraries were generated using Illumina TruSeq(®) Access library preparation protocol and TruSeq Small RNA library preparation kit...
June 2017: Physiological Reports
https://www.readbyqxmd.com/read/28592526/novel-cross-reactive-monoclonal-antibodies-against-ebolavirus-glycoproteins-show-protection-in-a-murine-challenge-model
#14
Jim Duehr, Teddy John Wohlbold, Lisa Oestereich, Veronika Chromikova, Fatima Amanat, Madhusudan Rajendran, Sergio Gomez-Medina, Ignacio Mena, Benjamin R TenOever, Adolfo García-Sastre, Christopher F Basler, Cesar Munoz-Fontela, Florian Krammer
Out of an estimated 31,100 cases since its discovery in 1976, ebolaviruses have caused approximately 13,000 deaths. The vast majority (∼11,000) of these occurred during the 2013-2016 West African epidemic. Three out of five species in the genus are known to cause Ebola Virus Disease in humans. Several monoclonal antibodies against the ebolavirus glycoprotein are currently in development as therapeutics. However, there is still a paucity of monoclonal antibodies that can cross-react between the glycoproteins of different ebolavirus species and the mechanism of these monoclonal antibody therapeutics are still not understood in detail...
June 7, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28589161/arthroscopic-mechanical-chondroplasty-of-the-knee-is-beneficial-for-treatment-of-focal-cartilage-lesions-in-the-absence-of-concurrent-pathology
#15
Devon E Anderson, Michael B Rose, Aaron J Wille, Jack Wiedrick, Dennis C Crawford
BACKGROUND: Articular cartilage lacks the ability for intrinsic repair after acute injury, and focal articular cartilage lesions cause significant morbidity worldwide. Arthroscopic debridement (chondroplasty) represents the majority of cartilage procedures of the knee; however, limited data exist regarding outcomes after chondroplasty performed in isolation of concurrent procedures or not as a primary treatment for osteoarthritis (OA). HYPOTHESIS: Arthroscopic mechanical chondroplasty is beneficial for patients with a focal cartilage lesion of the knee in the absence of meniscal pathology or OA...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28589160/flexion-posteroanterior-radiographs-affect-both-enrollment-for-and-outcomes-after-injection-therapy-for-knee-osteoarthritis
#16
Maximilian A Meyer, Timothy S Leroux, David M Levy, Annemarie K Tilton, Paul B Lewis, Adam B Yanke, Brian J Cole
BACKGROUND: Knee injection therapy is less effective for severe osteoarthritis (OA), specifically Kellgren-Lawrence (KL) grade 4. Patient selection for knee injection trials has historically been based on extension anteroposterior (AP) radiographic evaluation; however, emerging evidence suggests that KL grading using a flexion posteroanterior (PA) radiograph more accurately and reproducibly predicts disease severity. The impact of radiographic view on patient selection and outcome after knee injection therapy remains unknown...
May 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28586624/does-participation-in-sports-affect-osteoarthritic-progression-after-periacetabular-osteotomy
#17
Daisuke Hara, Satoshi Hamai, Jun-Ichi Fukushi, Ken-Ichi Kawaguchi, Goro Motomura, Satoshi Ikemura, Keisuke Komiyama, Yasuharu Nakashima
BACKGROUND: Periacetabular osteotomy (PAO) is an effective treatment for symptomatic acetabular dysplasia. However, whether postoperative participation in sports leads to progression of the Kellgren-Lawrence (KL) grade of osteoarthritis (OA) in these patients is unclear. PURPOSE: To investigate (1) participation in sports before and after PAO and (2) whether postoperative participation in sports leads to progression of the KL grade. STUDY DESIGN: Case-control study; Level of evidence, 3...
June 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28567422/risk-factors-for-the-mortality-of-pneumocystis-jirovecii-pneumonia-in-non-hiv-patients-who-required-mechanical-ventilation-a-retrospective-case-series-study
#18
Toru Kotani, Shinshu Katayama, Yuya Miyazaki, Satoshi Fukuda, Yoko Sato, Koichi Ohsugi
BACKGROUND: The risk factors for the mortality rate of Pneumocystis jirovecii pneumonia (PCP) who required mechanical ventilation (MV) remained unknown. METHODS: A retrospective chart review was performed of all PCP patients admitted to our intensive care unit and treated for acute hypoxemic respiratory failure to assess the risk factors for the high mortality. RESULTS: Twenty patients without human immunodeficiency virus infection required mechanical ventilation; 19 received noninvasive ventilation; and 11 were intubated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28556419/association-of-diabetes-mellitus-and-biochemical-knee-cartilage-composition-assessed-by-t2-relaxation-time-measurements-data-from-the-osteoarthritis-initiative
#19
Nattagan Chanchek, Alexandra S Gersing, Benedikt J Schwaiger, Michael C Nevitt, Jan Neumann, Gabby B Joseph, Nancy E Lane, Julia Zarnowski, Felix C Hofmann, Ursula Heilmeier, Charles E McCulloch, Thomas M Link
PURPOSE: To investigate the association of the presence and severity of diabetes mellitus (DM) with articular cartilage composition, using magnetic resonance imaging (MRI)-based T2 relaxation time measurements, and structural knee abnormalities. MATERIALS AND METHODS: In the Osteoarthritis Initiative 208, participants with DM (age 63.0 ± 8.9 years; 111 females) and risk factors for osteoarthritis (OA) or mild radiographic tibiofemoral OA (Kellgren-Lawrence [KL] grade ≤2) were identified and group-matched with 208 controls without DM (age 63...
May 26, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28556394/a-robust-diffusion-tensor-model-for-clinical-applications-of-mri-to-cartilage
#20
Uran Ferizi, Amparo Ruiz, Ignacio Rossi, Jenny Bencardino, José G Raya
PURPOSE: Diffusion tensor imaging (DTI) of articular cartilage is a promising technique for the early diagnosis of osteoarthritis (OA). However, in vivo diffusion tensor (DT) measurements suffer from low signal-to-noise ratio (SNR) that can result in bias when estimating the six parameters of the full DT, thus reducing sensitivity. This study seeks to validate a simplified four-parameter DT model (zeppelin) for obtaining more robust and sensitive in vivo DTI biomarkers of cartilage. METHODS: We use simulations in a substrate to mimic changes during OA; and analytic simulations of the DT drawn from a range of fractional anisotropies (FA) measured with high-quality DT data from ex vivo human cartilage...
May 28, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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