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https://www.readbyqxmd.com/read/28103579/the-combination-of-early-treatment-response-and-ypt-stage-is-a-novel-metric-to-stage-rectal-cancer-patients-treated-with-neoadjuvant-chemoradiotherapy
#1
Jian Cui, Lin Yang, Lei Guo, Yongfu Shao, Dongfeng Tan, Ni Li, Haizeng Zhang
Rectal cancer patients receiving neoadjuvant chemoradiotherapy (NCRT) are currently classified using the same Tumor-Node-Metastasis staging system as those patients without NCRT. We determined whether the combination of tumor treatment response (TRG) and ypT stage more accurately assesses primary tumors in rectal cancer after NCRT. We analyzed data from 329 rectal cancer patients treated with NCRT followed by radical resection. Cox proportional hazards models were used to evaluate the effects of different staging parameters on disease-free survival (DFS)...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28102344/predicting-drug-combination-index-and-simulating-the-network-regulation-dynamics-by-mathematical-modeling-of-drug-targeted-egfr-erk-signaling-pathway
#2
Lu Huang, Yuyang Jiang, Yuzong Chen
Synergistic drug combinations enable enhanced therapeutics. Their discovery typically involves the measurement and assessment of drug combination index (CI), which can be facilitated by the development and applications of in-silico CI predictive tools. In this work, we developed and tested the ability of a mathematical model of drug-targeted EGFR-ERK pathway in predicting CIs and in analyzing multiple synergistic drug combinations against observations. Our mathematical model was validated against the literature reported signaling, drug response dynamics, and EGFR-MEK drug combination effect...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102338/strengthening-of-ceramic-based-artificial-nacre-via-synergistic-interactions-of-1d-vanadium-pentoxide-and-2d-graphene-oxide-building-blocks
#3
Andrea Knöller, Christian P Lampa, Felix von Cube, Tingying Helen Zeng, David C Bell, Mildred S Dresselhaus, Zaklina Burghard, Joachim Bill
Nature has evolved hierarchical structures of hybrid materials with excellent mechanical properties. Inspired by nacre's architecture, a ternary nanostructured composite has been developed, wherein stacked lamellas of 1D vanadium pentoxide nanofibres, intercalated with water molecules, are complemented by 2D graphene oxide (GO) nanosheets. The components self-assemble at low temperature into hierarchically arranged, highly flexible ceramic-based papers. The papers' mechanical properties are found to be strongly influenced by the amount of the integrated GO phase...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102154/effectiveness-of-treatment-of-idiopathic-scoliosis-by-spinecor-dynamic-bracing-with-special-physiotherapy-programme-in-spinecor-system
#4
Karina Rożek, Tomasz Potaczek, Maja Zarzycka, Ewa Lipik, Barbara Jasiewicz
BACKGROUND: The SpineCor dynamic brace for the treatment of idiopathic scoliosis is designed to maintain the correct position of the spine and a new movement strategy for 20 hours per day. The SpineCor exercise system intensifies and complements the brace treatment. This study evaluated the effectiveness of a comprehensive treatment of idiopathic scoliosis involving the SpineCor system. MATERIAL AND METHODS: The study assessed a group of 40 patients (38 girls and 2 boys) with idiopathic scoliosis treated with the SpineCor brace...
October 28, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28101144/histopathological-findings-in-systemic-sclerosis-related-myopathy-fibrosis-and-microangiopathy-with-lack-of-cellular-inflammation
#5
Claudio Corallo, Maurizio Cutolo, Nila Volpi, Daniela Franci, Margherita Aglianò, Antonio Montella, Chiara Chirico, Stefano Gonnelli, Ranuccio Nuti, Nicola Giordano
OBJECTIVES: The objective of this study was to identify specific histopathological features of skeletal muscle involvement in systemic sclerosis (SSc) patients. METHODS: A total of 35 out of 112 SSc-patients (32%, including 81% female and 68% diffuse scleroderma) presenting clinical, biological and electromyographic (EMG) features of muscle weakness, were included. Patients underwent vastus lateralis biopsy, assessed for individual pathologic features including fibrosis [type I collagen (Coll-I), transforming growth factor β (TGF-β)], microangiopathy [cluster of differentiation 31 (CD31), pro-angiogenic vascular endothelial growth factor A (VEGF-A), anti-angiogenic VEGF-A165b], immune/ inflammatory response [CD4, CD8, CD20, human leucocyte antigens ABC (HLA-ABC)], and membranolytic attack complex (MAC)...
January 2017: Therapeutic Advances in Musculoskeletal Disease
https://www.readbyqxmd.com/read/28100627/inflammatory-biomarkers-predict-heart-failure-severity-and-prognosis-in-patients-with-heart-failure-with-preserved-ejection-fraction-a-holistic-proteomic-approach
#6
Camilla Hage, Erik Michaëlsson, Cecilia Linde, Erwan Donal, Jean-Claude Daubert, Li-Ming Gan, Lars H Lund
BACKGROUND: Underlying mechanisms in heart failure (HF) with preserved ejection fraction remain unknown. We investigated cardiovascular plasma biomarkers in HF with preserved ejection fraction and their correlation to diastolic dysfunction, functional class, pathophysiological processes, and prognosis. METHODS AND RESULTS: In 86 stable patients with HF and EF ≥45% in the Karolinska Rennes (KaRen) biomarker substudy, biomarkers were quantified by a multiplex immunoassay...
February 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28100619/functional-analysis-of-hcv-envelope-protein-e1-using-a-trans-complementation-system-reveals-a-dual-role-of-a-putative-fusion-peptide-of-e1-in-both-hcv-entry-and-morphogenesis
#7
Yimin Tong, Xiaojing Chi, Wei Yang, Jin Zhong
: Hepatitis C virus (HCV) is an enveloped RNA virus belonging to the Flaviviridae family. It mainly infects human hepatocytes and causes chronic liver diseases including cirrhosis and cancer. HCV encodes two envelope proteins E1 and E2 that form a heterodimer and mediate virus entry. While E2 has been extensively studied, less has been done so for E1, and its role in HCV life cycle still needs to be elucidated. Here we developed a new cell culture model for HCV infection based on trans-complementation of E1...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100186/influenza-epidemic-surveillance-and-prediction-based-on-electronic-health-record-data-from-an-out-of-hours-general-practitioner-cooperative-model-development-and-validation-on-2003-2015-data
#8
Barbara Michiels, Van Kinh Nguyen, Samuel Coenen, Philippe Ryckebosch, Nathalie Bossuyt, Niel Hens
BACKGROUND: Annual influenza epidemics significantly burden health care. Anticipating them allows for timely preparation. The Scientific Institute of Public Health in Belgium (WIV-ISP) monitors the incidence of influenza and influenza-like illnesses (ILIs) and reports on a weekly basis. General practitioners working in out-of-hour cooperatives (OOH GPCs) register diagnoses of ILIs in an instantly accessible electronic health record (EHR) system. This article has two objectives: to explore the possibility of modelling seasonal influenza epidemics using EHR ILI data from the OOH GPC Deurne-Borgerhout, Belgium, and to attempt to develop a model accurately predicting new epidemics to complement the national influenza surveillance by WIV-ISP...
January 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28099860/follicular-dendritic-cell-activation-by-tlr-ligands-promotes-autoreactive-b-cell-responses
#9
Abhishek Das, Balthasar A Heesters, Allison Bialas, Joseph O'Flynn, Ian R Rifkin, Jordi Ochando, Nanette Mittereder, Gianluca Carlesso, Ronald Herbst, Michael C Carroll
A hallmark of autoimmunity in murine models of lupus is the formation of germinal centers (GCs) in lymphoid tissues where self-reactive B cells expand and differentiate. In the host response to foreign antigens, follicular dendritic cells (FDCs) maintain GCs through the uptake and cycling of complement-opsonized immune complexes. Here, we examined whether FDCs retain self-antigens and the impact of this process in autoantibody secretion in lupus. We found that FDCs took up and retained self-immune complexes composed of ribonucleotide proteins, autoantibody, and complement...
January 17, 2017: Immunity
https://www.readbyqxmd.com/read/28098908/protective-effects-of-ethyl-pyruvate-on-lipopolysaccharide%C3%A2-induced-acute-lung-injury-through-inhibition-of-autophagy-in-neutrophils
#10
Qingteng Zhu, Hui Wang, Hairong Wang, Yong Luo, Yang Yu, Qirong Du, Aihua Fei, Shuming Pan
Among a number of clinical factors, bacterial infection is one of the most common causes of acute lung injury (ALI), a serious complication that carries a high risk of mortality (~40%). During the process of ALI, intense local and systemic inflammation is elicited, which exacerbates the injury. Neutrophil infiltration into airspace is observed in early stage of ALI, and is required for the full development of ALI through an array of mechanisms, including the release of granule contents and the production of pro‑inflammatory cytokines, due to the overactivation of complement and cytokines...
January 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28098450/the-serum-amyloid-p-component-sap-interactome-in-human-plasma-containing-physiological-calcium-levels
#11
Ebbe Toftgaard Poulsen, Kata Wolff Pedersen, Anna Maria Marzeda, Jan Johannes Enghild
The pentraxin serum amyloid p component (SAP) is secreted by the liver and found in plasma at a concentration of approximately 30 mg/L. SAP is a 25 kDa homo-pentamer known to bind both protein and non-protein ligands, all in a calcium-dependent manner. The function of SAP is unclear, but likely involves the humoral innate immune system spanning the complement system, inflammation, and coagulation. Also, SAP is known to binding to the generic structure of amyloid deposits and possibly to protect these against proteolysis...
January 18, 2017: Biochemistry
https://www.readbyqxmd.com/read/28098257/a-comprehensive-platform-for-the-analysis-of-ubiquitin-like-protein-modifications-using-in-vivo-biotinylation
#12
Lucia Pirone, Wendy Xolalpa, Jón Otti Sigurðsson, Juanma Ramirez, Coralia Pérez, Monika González, Ainara Ruiz de Sabando, Félix Elortza, Manuel S Rodriguez, Ugo Mayor, Jesper V Olsen, Rosa Barrio, James D Sutherland
Post-translational modification by ubiquitin and ubiquitin-like proteins (UbLs) is fundamental for maintaining protein homeostasis. Efficient isolation of UbL conjugates is hampered by multiple factors, including cost and specificity of reagents, removal of UbLs by proteases, distinguishing UbL conjugates from interactors, and low quantities of modified substrates. Here we describe bioUbLs, a comprehensive set of tools for studying modifications in Drosophila and mammals, based on multicistronic expression and in vivo biotinylation using the E...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097805/complement-polymorphisms-in-kidney-transplantation-critical-in-graft-rejection
#13
L A Michielsen, A D van Zuilen, I S Muskens, M C Verhaar, H G Otten
The complement system, as part of the innate immune system, plays an important role in renal transplantation. Complement is involved in the protection against foreign organisms and clearance of apoptotic cells but can also cause injury to the renal allograft for instance via antibody binding or in ischemia reperfusion injury. Numerous polymorphisms in complement factors have been identified thus far; some of them result in different functionalities or alter complement levels. In this review, we provide an overview of the literature on the role of complement polymorphisms in renal transplantation...
January 17, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28097447/mannose-binding-lectin-mbl-codon-54-rs1800450-polymorphism-predisposes-towards-medium-vessel-vasculitis-in-patients-with-systemic-lupus-erythematosus
#14
Vir Singh Negi, Panneer Devaraju, Durga Prasanna Misra, Vikramraj K Jain, Jignesh Babulal Usdadiya, Paul T Antony, Reena Gulati
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease with multiple etiological factors. Mannose-binding lectin (MBL) plays a key role in innate immunity by activating antibody-independent lectin complement pathway, opsonisation, phagocytosis, and immune complex (IC) clearance. Genetic polymorphisms in the promoter and coding regions of MBL gene affect the circulatory levels and biological activity of MBL. Defects in MBL can lead to defective opsonisation and, hence, hamper clearance of apoptotic debris, the persistence of which can drive autoantibody formation in lupus...
January 17, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28096394/elucidating-the-mechanism-of-fluorinated-extender-unit-loading-for-improved-production-of-fluorine-containing-polyketides
#15
Omer Ad, Benjamin W Thuronyi, Michelle C Y Chang
Polyketides are a large family of bioactive natural products synthesized by polyketide synthase (PKS) enzyme complexes predominantly from acetate and propionate. Given the structural diversity of compounds produced using these two simple building blocks, there has been longstanding interest in engineering the incorporation of alternative extender units. We have been investigating the mechanism of fluorinated monomer insertion by three of the six different modules of the PKS involved in erythromycin biosynthesis (6-deoxyerythronolide B synthase, DEBS) to begin understanding the contribution of different steps, such as enzyme acylation, transacylation, C-C bond formation, and chain transfer, to the overall selectivity and efficiency of this process...
January 17, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28095705/what-s-the-story-a-computational-analysis-of-narrative-competence-in-autism
#16
Michelle Lee, Gary E Martin, Abigail Hogan, Deanna Hano, Peter C Gordon, Molly Losh
Individuals with autism spectrum disorder demonstrate narrative (i.e. storytelling) difficulties which can significantly impact their ability to form and maintain social relationships. However, existing research has not comprehensively documented these impairments in more open-ended, emotionally evocative situations common to daily interactions. Computational linguistic measures offer a promising complement to traditional hand-coding methods of narrative analysis and in this study were applied together with hand coding of narratives elicited with emotionally salient scenes from the Thematic Apperception Test...
January 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28095428/linking-ecology-and-epidemiology-to-understand-predictors-of-multi-host-responses-to-an-emerging-pathogen-the-amphibian-chytrid-fungus
#17
Stephanie S Gervasi, Patrick R Stephens, Jessica Hua, Catherine L Searle, Gisselle Yang Xie, Jenny Urbina, Deanna H Olson, Betsy A Bancroft, Virginia Weis, John I Hammond, Rick A Relyea, Andrew R Blaustein
Variation in host responses to pathogens can have cascading effects on populations and communities when some individuals or groups of individuals display disproportionate vulnerability to infection or differ in their competence to transmit infection. The fungal pathogen, Batrachochytrium dendrobatidis (Bd) has been detected in almost 700 different amphibian species and is implicated in numerous global amphibian population declines. Identifying key hosts in the amphibian-Bd system-those who are at greatest risk or who pose the greatest risk for others-is challenging due in part to many extrinsic environmental factors driving spatiotemporal Bd distribution and context-dependent host responses to Bd in the wild...
2017: PloS One
https://www.readbyqxmd.com/read/28095100/association-of-combined-cigarette-smoking-and-arms2-loc387715-a69s-polymorphisms-with-age-related-macular-degeneration-a-meta-analysis
#18
Mohammad Hossein Jabbarpoor Bonyadi, Mehdi Yaseri, Mortaza Bonyadi, Masoud Soheilian, Homayoun Nikkhah
PURPOSE: The age-related maculopathy susceptibility2 (ARMS2)/LOC387715 A69S (rs10490924) polymorphism and cigarette smoking have been shown to have significant association with AMD. In this meta-analysis we used the results of available association studies of combined ARMS2/LOC387715 genotypes and cigarette smoking with AMD to estimate the possible synergistic or multiplicative effects. METHODS: Heterogeneity of studies was evaluated using the Cochran Q-test and the I-square index...
January 17, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28094956/radiolabeled-r954-derivatives-for-imaging-bradykinin-b1-receptor-expression-with-positron-emission-tomography
#19
Hsiou-Ting Kuo, Jinhe Pan, Joseph Lau, Chengcheng Zhang, Jutta Zeisler, Nadine Colpo, Francois Benard, Kuo-Shyan Lin
Peptide receptors have emerged as promising targets for diagnosis and therapy. The aberrant overexpression of these receptors in different cancer subtypes allows for the adoption of new treatment strategies that complement conventional chemotherapies. Bradykinin B1 receptor (B1R) is a G protein-coupled receptor that is overexpressed in many cancers, with limited expression in healthy tissues. Previously, we developed 68Ga- and 18F-labeled derivatives of B1R antagonist peptides B9858 and B9958, and successfully targeted B1R-expressing tumor xenografts in vivo...
January 17, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28094862/software-platform-for-simulation-of-a-prototype-proton-ct-scanner
#20
Valentina Giacometti, Vladimir A Bashkirov, Pierluigi Piersimoni, Susanna Guatelli, Tia E Plautz, Hartmut F-W Sadrozinski, Robert P Johnson, Andriy Zatserklyaniy, Thomas Tessonnier, Katia Parodi, Anatoly B Rosenfeld, Reinhard W Schulte
PURPOSE: Proton computed tomography (pCT) is a promising imaging technique to substitute or at least complement x-ray CT for more accurate proton therapy treatment planning as it allows calculating directly proton relative stopping power from proton energy loss measurements. A proton CT scanner with a silicon-based particle tracking system and a 5 stage scintillating energy detector has been completed. In parallel a modular software platform was developed to characterize the performance of the proposed pCT...
January 17, 2017: Medical Physics
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