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https://www.readbyqxmd.com/read/28527406/the-relevance-of-ki-calculation-for-bi-substrate-enzymes-illustrated-by-kinetic-evaluation-of-a-novel-lysine-k-acetyltransferase-8-inhibitor
#1
Hannah Wapenaar, Thea van den Bosch, Niek G J Leus, Petra E van der Wouden, Nikolaos Eleftheriadis, Jos Hermans, Gebremedhin Solomon Hailu, Dante Rotili, Antonello Mai, Alexander Dömling, Rainer Bischoff, Hidde J Haisma, Frank J Dekker
Histone acetyltransferases (HATs) are important mediators of epigenetic post-translational modifications of histones that play important roles in health and disease. A disturbance of these modifications can result in disease states, such as cancer or inflammatory diseases. Inhibitors of HATs (HATi) such as lysine (K) acetyltransferase 8 (KAT8), could be used to study the epigenetic processes in diseases related to these enzymes or to investigate HATs as therapeutic targets. However, the development of HATi is challenged by the difficulties in kinetic characterization of HAT enzymes and their inhibitors to enable calculation of a reproducible inhibitory potency...
May 5, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28527397/mri-surveillance-for-women-with-dense-breasts-and-a-previous-breast-cancer-and-or-high-risk-lesion
#2
Michelle Nadler, Hyder Al-Attar, Ellen Warner, Anne L Martel, Sharmila Balasingham, Liying Zhang, Joseph H Lipton, Belinda Curpen
BACKGROUND: The role of surveillance breast MRI for women with mammographically dense breasts, a personal history of breast cancer (BC), atypical hyperplasia (AH), or lobular carcinoma in situ (LCIS) is unclear. We estimated the performance of annual surveillance MRI in women with a combination of these risk factors. METHODS: We performed a retrospective review of the clinical, radiological, and pathological parameters of women who received annual concurrent surveillance breast MRI and mammography between 04/2013 and 12/2015 and fulfilled all of the following criteria: 1) age <70; 2) prior diagnosis of AH, LCIS or BC; 3) heterogeneously or extremely dense breast(s); and 4) did not qualify for our provincial breast MRI high risk screening program...
May 17, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28527387/analysis-of-electroencephalogram-characteristics-of-anti-nmda-receptor-encephalitis-patients-in-china
#3
Yan Zhang, Gang Liu, Meng Di Jiang, Li Ping Li, Ying Ying Su
OBJECTIVE: To explore the characteristics of electroencephalogram (EEG) in patients with anti-N-methyl-d-aspartate receptor (anti-NMDAR) encephalitis. METHODS: Anti-NMDAR encephalitis patients admitted to the Department of Neurology between January 2012 and June 2016 were enrolled. All patients underwent electroencephalogram (EEG) at least once in the disease peak stage, and received tumor screening, symptomatic therapy, and immunotherapy. Patients received outcome evaluation every 6months after the immunotherapy, and modified Rankin scale (mRS) 0-2 was defined as favorable outcome...
May 4, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28527280/-pperformance-of-led-fluorescence-microscopy-for-the-detection-of-acid-fast-bacilli-from-respiratory-samples-in-peripheral-laboratories-in-argentina
#4
María Imaz, Sonia Allassia, Mónica Aranibar, Alba Gunia, Susana Poggi, Ana Togneri, Lidia Wolff, Group Of Implementation Of Fluorescence
INTRODUCTION: Light-emitting diode fluorescence microscopy (LED-FM) has been endorsed by the World Health Organization (WHO) for tuberculosis diagnosis, but its accuracy in HIV-infected patients remains controversial, and only some few studies have explored procedural factors that may affect its performance. OBJECTIVE: To evaluate the performance of LED-FM for tuberculosis diagnosis in patients with and without HIV infection using a newer, less expensive LED lamp...
June 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527273/-reliability-and-dimensionality-of-phq-9-in-screening-depression-symptoms-among-health-science-students-in-cartagena-2014
#5
Carlos Arturo Cassiani-Miranda, María Camila Vargas-Hernández, Eduard Pérez-Anibal, Mariana Isabel Herazo-Bustos, Mauricio Hernández-Carrillo
INTRODUCTION: Depression among university students must be screened with valid instruments. The Patient Health Questionnaire (PHQ-9) is reliable and valid for screening depression in a university context; however, its psychometric performance in Colombia is unknown. OBJECTIVE: To estimate the reliability and dimensionality of PHQ-9 as a screening instrument for depressive symptoms among health sciences students of a university in Cartagena, Colombia.Materials y methods: We analyzed the factorial structure and reliability of the PHQ-9 in a sample of 550 students for expected prevalence of clinically-meaningful depressive symptoms (CMDS) of 25% with a confidence level of 95% and an error level of 3%...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527240/recurrent-deep-vein-thrombosis-after-the-first-venous-thromboembolism-event-a-single-institution-experience
#6
Mohammad Asim, Hassan Al-Thani, Ayman El-Menyar
BACKGROUND We investigated the frequency, clinical presentation, risk factors, and outcome after the first deep vein thrombosis (DVT) event. MATERIAL AND METHODS A retrospective study was conducted for patients with DVT between 2008 and 2012 with a 1-year follow-up. Patients were divided into 2 groups: single vs. recurrent DVT (RDVT). RESULTS Of the 6420 patients screened for DVT, 662 (10.3%) had DVT. RDVT constituted 22% of cases. A single event was more frequent in left lower limb DVT (p=0.01), while RDVT cases had more bilateral DVT (p=0...
May 20, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28527158/asymptomatic-cryptococcal-antigenemia-in-people-living-with-hiv-plhiv-with-severe-immunosuppression-is-routine-crag-screening-indicated-in-india
#7
S Anuradha, Abhaya Narayana H, Richa Dewan, Ravinder Kaur, K Rajeshwari
BACKGROUND: Cryptococcal meningitis (CM) is a common, life-threatening opportunistic infection (OI) among people living with HIV (PLHIV) in India. Serum Cryptococcal antigen (CrAg) positivity is predictive of future occurrence of CM and pre-emptive treatment reduces its mortality. Routine CrAg screening among PLHIV is not adopted by India's national programme. This study evaluated the prevalence of CrAg and assessed CrAg positivity in predicting all-cause mortality among PLHIV. METHODS: This prospective study was conducted in a tertiary care, public health facility in New Delhi, India...
April 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28527157/cryptococcal-antigen-detection-in-serum-significance-as-a-screening-modality-for-indian-plhiv
#8
Smrati Bajpai
No abstract text is available yet for this article.
April 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/28527011/the-prdm9-krab-domain-is-required-for-meiosis-and-involved-in-protein-interactions
#9
Yukiko Imai, Frédéric Baudat, Miguel Taillepierre, Marcello Stanzione, Attila Toth, Bernard de Massy
PR domain-containing protein 9 (PRDM9) is a major regulator of the localization of meiotic recombination hotspots in the human and mouse genomes. This role involves its DNA-binding domain, which is composed of a tandem array of zinc fingers, and PRDM9-dependent trimethylation of histone H3 at lysine 4. PRDM9 is a member of the PRDM family of transcription regulators, but unlike other family members, it contains a Krüppel-associated box (KRAB)-related domain that is predicted to be a potential protein interaction domain...
May 19, 2017: Chromosoma
https://www.readbyqxmd.com/read/28526972/patient-experiences-attitudes-and-expectations-towards-receiving-information-about-anti-tnf-medication-a-quantitative-study
#10
Jon Packham, Paul Arkell, Tom Sheeran, Ann Brownfield, Anthony Cadwgan, Sarah Ryan
The objective of the study was to measure patient attitudes and experience of information received during drug counselling for rheumatoid arthritis (RA) medications. This is a cross-sectional UK postal questionnaire study. Three RA patient groups-disease-modifying antirheumatic drugs (DMARDs) only, first anti-tumour necrosis factor (anti-TNF) and failed anti-TNF-were sent postal questionnaires. Data on patient history/demographics, drug counselling experience, knowledge of drug side effects, attitudes to vaccinations, cancer screening and blood borne virus testing was collected; 264/679 (39%) patients responded (median age 65 years, 66% female, median disease duration 15 years)...
May 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28526944/ventilator-data-extraction-with-a-video-display-image-capture-and-processing-system
#11
David B Wax, Bryan Hill, Matthew A Levin
Medical hardware and software device interoperability standards are not uniform. The result of this lack of standardization is that information available on clinical devices may not be readily or freely available for import into other systems for research, decision support, or other purposes. We developed a novel system to import discrete data from an anesthesia machine ventilator by capturing images of the graphical display screen and using image processing to extract the data with off-the-shelf hardware and open-source software...
June 2017: Journal of Medical Systems
https://www.readbyqxmd.com/read/28526938/reducing-liver-cancer-risk-in-african-born-immigrants-through-culturally-targeted-hepatitis-b-group-education-programs
#12
Kemi Bolutayo, Alexandre Ly van Manh, Noah Cohen, Daouda Ndiaye, Lina Jandorf, Ponni V Perumalswami
Of 900 West African-born immigrants living in New York City who were tested for hepatitis B virus (HBV), over 9% were found to have the infection (Shankar H et al. Clin Infectious Dis 62(S4):S289-s297, 2016). Community targeted group education programs (EP) have been shown to improve immigrant population's health (Bailey E et al. J Natl Med Assoc 92(3):136-42, 2000). Our aim is to enhance HBV screening in at-risk West African immigrants through the development of a group EP as a first critical step to reducing liver cancer risk...
May 19, 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/28526936/fingerprint-of-long-non-coding-rna-regulated-by-cyclic-mechanical-stretch-in-human-aortic-smooth-muscle-cells-implications-for-hypertension
#13
Laura-Eve Mantella, Krishna K Singh, Paul Sandhu, Crystal Kantores, Azza Ramadan, Nadiya Khyzha, Adrian Quan, Mohammed Al-Omran, Jason E Fish, Robert P Jankov, Subodh Verma
Emerging evidence suggests that long non-coding RNAs (lncRNAs) represent a cellular hub coordinating various cellular processes that are critical in health and disease. Mechanical stress triggers changes in vascular smooth muscle cells (VSMCs) that in turn contribute to pathophysiological changes within the vasculature. We sought to evaluate the role that lncRNAs play in mechanical stretch-induced alterations of human aortic smooth muscle cells (HASMCs). RNA (lncRNA and mRNA) samples isolated from HASMCs that had been subjected to 10 or 20% elongation (1 Hz) for 24 h were profiled with the Arraystar Human LncRNA Microarray V3...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28526932/inpatient-addiction-consultation-for-hospitalized-patients-increases-post-discharge-abstinence-and-reduces-addiction-severity
#14
Sarah E Wakeman, Joshua P Metlay, Yuchiao Chang, Grace E Herman, Nancy A Rigotti
BACKGROUND: Alcohol and drug use results in substantial morbidity, mortality, and cost. Individuals with alcohol and drug use disorders are overrepresented in general medical settings. Hospital-based interventions offer an opportunity to engage with a vulnerable population that may not otherwise seek treatment. OBJECTIVE: To determine whether inpatient addiction consultation improves substance use outcomes 1 month after discharge. DESIGN: Prospective quasi-experimental evaluation comparing 30-day post-discharge outcomes between participants who were and were not seen by an addiction consult team during hospitalization at an urban academic hospital...
May 19, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28526920/effects-of-semaglutide-on-beta-cell-function-and-glycaemic-control-in-participants-with-type-2-diabetes-a-randomised-double-blind-placebo-controlled-trial
#15
Christoph Kapitza, Kirsten Dahl, Jacob B Jacobsen, Mads B Axelsen, Anne Flint
AIMS/HYPOTHESIS: Semaglutide is a glucagon-like peptide-1 analogue in development for the treatment of type 2 diabetes. Its effects on first- and second-phase insulin secretion and other measures of beta cell function and glycaemic control were assessed. METHODS: In this single-centre, double-blind, placebo-controlled, parallel-group trial, conducted at the Profil Institut für Stoffwechselforschung, Germany, 75 adult (aged 18-64 years) participants with type 2 diabetes (eligibility: HbA1c of 6...
May 19, 2017: Diabetologia
https://www.readbyqxmd.com/read/28526917/do-we-know-the-outcome-predictors-for-cauda-equine-syndrome-ces-a-retrospective-single-center-analysis-of-60-patients-with-ces-with-a-suggestion-for-a-new-score-to-measure-severity-of-symptoms
#16
Alexander König, Lisa Amelung, Marco Danne, Ullrich Meier, Johannes Lemcke
OBJECTIVE: Despite the awareness and familiarity of almost every medical professional with the cauda equine compression syndrome (CES), risk factors for a poor prognosis of the disease remain elusive. Even the relationship between subsequent outcome and the time elapsed from the time of appearance of symptoms to surgery taking place remain obscure. The aim of our study, therefore, was to analyze a relatively large population of our own patients studied consecutively, to identify outcome predictors for CES and to propose a clinical score for CES symptoms (Berlin CES score)...
May 19, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28526835/large-field-of-view-fast-and-low-dose-multimodal-phase-contrast%C3%A2-imaging-at-high-x-ray-energy
#17
Alberto Astolfo, Marco Endrizzi, Fabio A Vittoria, Paul C Diemoz, Benjamin Price, Ian Haig, Alessandro Olivo
X-ray phase contrast imaging (XPCI) is an innovative imaging technique which extends the contrast capabilities of 'conventional' absorption based x-ray systems. However, so far all XPCI implementations have suffered from one or more of the following limitations: low x-ray energies, small field of view (FOV) and long acquisition times. Those limitations relegated XPCI to a 'research-only' technique with an uncertain future in terms of large scale, high impact applications. We recently succeeded in designing, realizing and testing an XPCI system, which achieves significant steps toward simultaneously overcoming these limitations...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526818/essential-hypertension-a-filtered-serum-based-metabolomics-study
#18
Keerti Ameta, Ashish Gupta, Sudeep Kumar, Rishi Sethi, Deepak Kumar, Abbas Ali Mahdi
Despite the easy and reliable methods of blood pressure measurement, the screening of essential hypertension (EH) is usually ignored due to delayed onset of symptoms. A probe into the biochemical changes in hypertension would serve as a welcome asset to provide insight into the mechanistic aspects of EH. Filtered serum samples from 64 EH patients and 59 healthy controls (HC) were analysed using 800 MHz nuclear magnetic resonance (NMR) spectroscopy. Application of principal component analysis (PCA) and orthogonal partial least-squares discriminant analysis (OPLS-DA) following receiver operating characteristic (ROC) curve of NMR data reveals significantly perturbed metabolites: alanine, arginine, methionine, pyruvate, adenine, and uracil...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28526787/development-of-multi-well-plate-methods-using-pure-cultures-of-methanogens-to-identify-new-inhibitors-for-suppressing-ruminant-methane-emissions
#19
M R Weimar, J Cheung, D Dey, C McSweeney, M Morrison, Y Kobayashi, W B Whitman, V Carbone, L R Schofield, R S Ronimus, G M Cook
Hydrogenotrophic methanogens typically require strictly anaerobic culturing conditions in glass tubes with overpressures of H2 and CO2 that are both time-consuming and costly. To increase the throughput for screening chemical compound libraries, 96-well microtiter plate methods for the growth of a marine (environmental) methanogen Methanococcus maripaludis strain S2 and the rumen methanogen Methanobrevibacter species AbM4 were developed. A number of key parameters (inoculum size, reducing agents for media preparation, duration of assay, inhibitor solvents and culture volume) were optimised to achieve robust and reproducible growth in a high-throughput microtiter plate format...
May 19, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28526752/the-apical-ecm-preserves-embryonic-integrity-and-distributes-mechanical-stress-during-morphogenesis
#20
Thanh Thi Kim Vuong-Brender, Shashi Kumar Suman, Michel Labouesse
Epithelia are bound by both basal and apical extracellular matrices (ECM). While the composition and function of the former have been intensively investigated, less is known about the latter. The embryonic sheath, the ECM apical to the C. elegans embryonic epidermis, has been suggested to promote its elongation. In an RNAi screen for the components of the sheath, we identified the Zona Pellucida domain proteins NOAH-1 and NOAH-2. We found that these proteins act in the same pathway, and in parallel to three other putative sheath proteins, SYM-1, LET-4 and FBN-1/Fibrillin, to ensure embryonic integrity and promote elongation...
May 19, 2017: Development
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