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https://www.readbyqxmd.com/read/28817834/mdm2-promotes-epithelial-mesenchymal-transition-and-metastasis-of-ovarian-cancer-skov3-cells
#1
Ying Chen, Dan-Dan Wang, Ye-Ping Wu, Dan Su, Tian-Yi Zhou, Ren-Hua Gai, Ying-Ying Fu, Lin Zheng, Qiao-Jun He, Hong Zhu, Bo Yang
BACKGROUND: Metastasis accounts for the most lethal reason for the death of ovarian cancer patients, but remains largely untreated. Epithelial-mesenchymal transition (EMT) is critical for the conversion of early-stage ovarian tumours into metastatic malignancies. Thus the exploration of the signalling pathways promoting EMT would open potential opportunities for the treatment of metastatic ovarian cancer. Herein, the putative role of MDM2 in regulating EMT and metastasis of ovarian cancer SKOV3 cells was investigated...
August 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28817764/limited-functioning-after-remission-of-an-anxiety-disorder-as-a-trait-effect-versus-a-scar-effect-results-of-a-longitudinal-general-population-study
#2
Simone M E Schopman, Margreet Ten Have, Saskia van Dorsselaer, Ron de Graaf, Neeltje M Batelaan
OBJECTIVE: After remission of an anxiety disorder, subjects often experience persistent functional impairments. We examined whether impairments in mental and physical functioning following remission are a continuation of premorbid lower functioning (trait effect), due to impairments that develop during the anxiety disorder and persist beyond recovery (scar effect), or both. METHODS: Data were derived from the Netherlands Mental Health Survey and Incidence Study-2 (NEMESIS-2), a prospective psychiatric epidemiologic study among the general population with a 3-wave design (6-year follow-up, with the study starting in 2007 and ending in 2015)...
August 15, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28817703/quality-of-life-of-inguinal-hernia-patients-in-taiwan-the-application-of-the-hernia-specific-quality-of-life-assessment-instrument
#3
Chi-Cheng Huang, Feng-Chuan Tai, Tzung-Hsin Chou, Heng-Hui Lien, Jaan-Yeh Jeng, Thien-Fiew Ho, Ching-Shui Huang
BACKGROUND: With the development of prosthetic mesh and tension free techniques, the recurrence rate following inguinal hernia repair has been reduced, and hernia outcomes research should focus on post-operative quality of life and potential complications. STUDY DESIGN: A novel hernia quality of life assessment instrument, HERQL, was developed. The HERQL questionnaire comprises a 4-item summative pain score measuring pain and discomfort resulting from various strenuous activities...
2017: PloS One
https://www.readbyqxmd.com/read/28817572/tissue-specific-insulin-signaling-mediates-female-sexual-attractiveness
#4
Tatyana Y Fedina, Devin Arbuthnott, Howard D Rundle, Daniel E L Promislow, Scott D Pletcher
Individuals choose their mates so as to maximize reproductive success, and one important component of this choice is assessment of traits reflecting mate quality. Little is known about why specific traits are used for mate quality assessment nor about how they reflect it. We have previously shown that global manipulation of insulin signaling, a nutrient-sensing pathway governing investment in survival versus reproduction, affects female sexual attractiveness in the fruit fly, Drosophila melanogaster. Here we demonstrate that these effects on attractiveness derive from insulin signaling in the fat body and ovarian follicle cells, whose signals are integrated by pheromone-producing cells called oenocytes...
August 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28816897/surgical-correction-of-cam-deformity-in-association-with-femoroacetabular-impingement-and-its-impact-on-the-degenerative-process-within-the-hip-joint
#5
Paul E Beaulé, Andrew D Speirs, Helen Anwander, Gerd Melkus, Kawan Rakhra, Hanspeter Frei, Mario Lamontagne
BACKGROUND: Cam morphology in association with femoroacetabular impingement (FAI) is a recognized cause of hip pain and cartilage damage and proposed as a leading cause of arthritis. The purpose of this study was to analyze the functional and biomechanical effects of the surgical correction of the cam deformity on the degenerative process associated with FAI. METHODS: Ten male patients with a mean age of 34.3 years (range, 23.1 to 46.5 years) and a mean body mass index (and standard deviation) of 26...
August 16, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28816873/the-need-of-validated-disease-specific-outcome-instruments-for-spine-trauma
#6
Cumhur Oner, Said Sadiqi, Anne Mechteld Lehr, Gregory D Schroeder, Alexander R Vaccaro
This article focuses on patient-reported and clinician-reported outcome measures in spine trauma care. The measurement of the quality of care and functional and health-related quality of life outcomes of spine trauma patients has become increasingly important. However, no outcome instrument is specifically designed, validated, or universally adapted for this specific patient population. Issues specific to spinal trauma patients may not be adequately addressed by the instruments that are currently used in the literature and the daily clinical practice...
September 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28816473/the-effects-of-context-on-processing-words-during-sentence-reading-among-adults-varying-in-age-and-literacy-skill
#7
Allison A Steen-Baker, Shukhan Ng, Brennan R Payne, Carolyn J Anderson, Kara D Federmeier, Elizabeth A L Stine-Morrow
The facilitation of word processing by sentence context reflects the interaction between the build-up of message-level semantics and lexical processing. Yet, little is known about how this effect varies through adulthood as a function of reading skill. In this study, Participants 18-64 years old with a range of literacy competence read simple sentences as their eye movements were monitored. We manipulated the predictability of a sentence-final target word, operationalized as cloze probability. First fixation durations showed an interaction between age and literacy skill, decreasing with age among more skilled readers but increasing among less skilled readers...
August 2017: Psychology and Aging
https://www.readbyqxmd.com/read/28815946/model-catalytic-studies-of-novel-liquid-organic-hydrogen-carriers-indole-indoline-and-octahydroindole-on-pt-111
#8
Matthias Schwarz, Philipp Bachmann, Thais Nascimento Silva, Susanne Mohr, Marlene Scheuermeyer, Florian Späth, Udo Bauer, Fabian Düll, Johann Steinhauer, Chantal Hohner, Tibor Döpper, Heshmat Noei, Andreas Stierle, Christian Papp, Hans-Peter Steinrück, Peter Wasserscheid, Andreas Görling, Jörg Libuda
Indole derivatives were recently proposed as potential Liquid Organic Hydrogen Carriers (LOHC) for storage of renewable energies. In this work, we have investigated the adsorption, dehydrogenation and degradation mechanisms in the indole/indoline/octahydroindole system on Pt(111). We have combined infrared reflection absorption spectroscopy (IRAS), X-ray photoelectron spectroscopy (XPS) and density functional (DF) calculations. Indole multilayers show a crystallization transition at 200 K, in which the molecules adopt a strongly tilted orientation, before the multilayer desorbs at 220 K...
August 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28815771/molstack-interactive-visualization-tool-for-presentation-interpretation-and-validation-of-macromolecules-and-electron-density-maps
#9
Przemyslaw J Porebski, Piotr Sroka, Heping Zheng, David R Cooper, Wladek Minor
Our understanding of the world of biomolecular structures is based upon the interpretation of macromolecular models, of which ∼ 90% are themselves the interpretation of electron density maps. This structural information guides scientific progress and exploration in many biomedical disciplines. The Protein Data Bank's web portals have made these structures available for mass scientific consumption and greatly broaden the scope of information presented in scientific publications. The portals provide numerous quality metrics; however, the portion of the structure that is most vital for interpretation of the function may have the most difficult to interpret electron density and this ambiguity is not reflected by any single metric...
August 17, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28815537/from-heterochromatin-to-long-noncoding-rnas-in-drosophila-expanding-the-arena-of-gene-function-and-regulation
#10
Subhash C Lakhotia
Recent years have witnessed a remarkable interest in exploring the significance of pervasive noncoding transcripts in diverse eukaryotes. Classical cytogenetic studies using the Drosophila model system unraveled the perplexing attributes and "functions" of the "gene"-poor heterochromatin. Recent molecular studies in the fly model are likewise revealing the very diverse and significant roles played by long noncoding RNAs (lncRNAs) in development, gene regulation, chromatin organization, cell and nuclear architecture, etc...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28815517/autophagy-in-adipocyte-differentiation
#11
Zhipeng Tao, Longhua Liu, Louise D Zheng, Zhiyong Cheng
Adipose tissue regulates metabolic homeostasis by acting as an endocrine organ and energy reservoir. Adipose tissue development and functional maintenance are dependent on adipocyte differentiation, in which autophagy plays an important role. It has been shown that autophagy deficiency dampens adipocyte differentiation, compromises adipose tissue development, dysregulates adipocytokine secretion, and even causes sudden death in young animals. Therefore, accurate assessment of autophagy in adipocyte is critical for the study of adipose biology or pathology of metabolic diseases...
August 17, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28814406/comparative-epigenetic-and-genetic-spatial-structure-of-the-perennial-herb-helleborus-foetidus-isolation-by-environment-isolation-by-distance-and-functional-trait-divergence
#12
Carlos M Herrera, Mónica Medrano, Pilar Bazaga
PREMISE OF THE STUDY: Epigenetic variation can play a role in local adaptation; thus, there should be associations among epigenetic variation, environmental variation, and functional trait variation across populations. This study examines these relationships in the perennial herb Helleborus foetidus (Ranunculaceae). METHODS: Plants from 10 subpopulations were characterized genetically (AFLP, SSR markers), epigenetically (MSAP markers), and phenotypically (20 functional traits)...
August 16, 2017: American Journal of Botany
https://www.readbyqxmd.com/read/28814168/deterioration-of-heart-rate-recovery-index-in-patients-after-carotid-artery-stenting
#13
Emrah Aytac, Murat Gonen, Orhan Dogdu, Mehmet Balin
Objective Although carotid artery stenting (CAS) is an effective treatment for severe carotid stenosis, it has been associated with alterations in autonomic functions long term after the procedure. Patients with CAS have been reported to have autonomic nervous system (ANS) dysfunction. This study aimed to evaluate heart rate recovery (HRR) indices and exercise test parameters after CAS. Methods Patients (10 male, 11 female) suitable for CAS, without a history of hypertension, diabetes mellitus, severe coronary artery or valvular heart disease, were enrolled in our study...
January 1, 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28814116/the-dark-side-of-the-ring-role-of-the-dna-sliding-surface-of-pcna
#14
Matteo De March, Alfredo De Biasio
The proliferating cell nuclear antigen (PCNA) sliding clamp lies at the heart of the accurate duplication of eukaryotic genomes. While the outer surface of the PCNA ring interacts with polymerases and other factors, the role of the inner wall facing the DNA is elusive. Recent evidence shows that conserved basic residues in the PCNA central channel create a specific surface that recognizes the DNA backbone and enables the clamp to slide by rotationally tracking the DNA helix. The sliding surface can be modulated (i) through lysine acetylation, which triggers PCNA degradation during nucleotide excision repair (NER) and stimulates repair by homologous recombination (HR) or (ii) through binding of the protein factor p15(PAF), which turns off DNA lesion bypass...
August 17, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28813882/validation-of-the-efficiency-of-a-robotic-rehabilitation-training-system-for-recovery-of-severe-plegie-hand-motor-function-after-a-stroke
#15
Hirofumi Tanabe, Munehiro Ikuta, Yoshifumi Morita
We have developed a rehabilitation training system called the Useful and Ultimate Rehabilitation System PARKO (UR System PARKO) to promote the recovery of motor function of the severe chronic plegic hand of stroke patients. This system was equipped with two functions to realize two conditions: (1) fixing of all fingers to a hyperextended position and (2) extending the elbow joint while applying resistance load to the fingertips. A clinical test was conducted with two patients to determine the therapeutic effect of the UR System PARKO for severe plegic hand...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813875/rehabilitation-for-hemiplegia-using-an-upper-limb-training-system-based-on-a-force-direction
#16
Kunihiro Ogata, Yuto Hirabayashi, Keisuke Kubota, Yuri Hasegawa, Toshiaki Tsuji
Hemiplegia patients have complete paralysis of half their body, and encounter many challenges in living an independent life. Rehabilitation of the lower body is more important than that of the upper body for independent living; thus, recovering upper body functions of their paralyzed side is not enough. Rehabilitation robots may be used to assist training without therapists. In this study, a small portable rehabilitation robot was developed for use at home, and a new training method was proposed. This robot consists on an omni wheel mechanism and a force sensor, and is capable of deciding the motion based on the force value...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813864/gait-assessment-system-based-on-novel-gait-variability-measures
#17
Xingchen Wang, Danijela Ristic-Durrant, Matthias Spranger, Axel Graser
In this paper, a novel gait assessment system based on measures of gait variability reflected through the variability of shapes of gait cycles trajectories is proposed. The presented gait assessment system is based on SVM (support vector machine) classifier and on gait variability-based features calculated from the hip and knee joint angle trajectories recorded using wearable IMUs during walking trials. A system classifier was trained to distinguish healthy gait patterns from the pathological ones. The features were extracted by calculating the distances between the joint trajectories of the individual gait cycles using 4 different distance functions...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813699/t1-and-t2-mapping-in-cardiology-mapping-the-obscure-object-of-desire
#18
Sophie Mavrogeni, Dimitris Apostolou, Panayiotis Argyriou, Stella Velitsista, Lilika Papa, Stelios Efentakis, Evangelos Vernardos, Mikela Kanoupaki, George Kanoupakis, Athanassios Manginas
The increasing use of cardiovascular magnetic resonance (CMR) is based on its capability to perform biventricular function assessment and tissue characterization without radiation and with high reproducibility. The use of late gadolinium enhancement (LGE) gave the potential of non-invasive biopsy for fibrosis quantification. However, LGE is unable to detect diffuse myocardial disease. Native T1 mapping and extracellular volume fraction (ECV) provide knowledge about pathologies affecting both the myocardium and interstitium that is otherwise difficult to identify...
August 17, 2017: Cardiology
https://www.readbyqxmd.com/read/28813537/metabolite-patterns-predicting-sex-and-age-in-participants-of-the-karlsruhe-metabolomics-and-nutrition-karmen-study
#19
Manuela J Rist, Alexander Roth, Lara Frommherz, Christoph H Weinert, Ralf Krüger, Benedikt Merz, Diana Bunzel, Carina Mack, Björn Egert, Achim Bub, Benjamin Görling, Pavleta Tzvetkova, Burkhard Luy, Ingrid Hoffmann, Sabine E Kulling, Bernhard Watzl
Physiological and functional parameters, such as body composition, or physical fitness are known to differ between men and women and to change with age. The goal of this study was to investigate how sex and age-related physiological conditions are reflected in the metabolome of healthy humans and whether sex and age can be predicted based on the plasma and urine metabolite profiles. In the cross-sectional KarMeN (Karlsruhe Metabolomics and Nutrition) study 301 healthy men and women aged 18-80 years were recruited...
2017: PloS One
https://www.readbyqxmd.com/read/28812849/global-health-in-the-anthropocene-moving-beyond-resilience-and-capitalism-comment-on-health-promotion-in-an-age-of-normative-equity-and-rampant-inequality
#20
Remco van de Pas
There has been much reflection on the need for a new understanding of global health and the urgency of a paradigm shift to address global health issues. A crucial question is whether this is still possible in current modes of global governance based on capitalist values. Four reflections are provided. (1) Ecological -centered values must become central in any future global health framework. (2) The objectives of 'sustainability' and 'economic growth' present a profound contradiction. (3) The resilience discourse maintains a gridlock in the functioning of the global health system...
December 24, 2016: International Journal of Health Policy and Management
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