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https://www.readbyqxmd.com/read/29236377/xpey-relational-environments-an-analytic-framework-for-conceptualizing-indigenous-health-equity
#1
Alexandra Kent, Charlotte Loppie, Jeannine Carriere, Marjorie MacDonald, Bernie Pauly
INTRODUCTION: Both health equity research and Indigenous health research are driven by the goal of promoting equitable health outcomes among marginalized and underserved populations. However, the two fields often operate independently, without collaboration. As a result, Indigenous populations are underrepresented in health equity research relative to the disproportionate burden of health inequities they experience. In this methodological article, we present Xpey' Relational Environments, an analytic framework that maps some of the barriers and facilitators to health equity for Indigenous peoples...
December 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/29236299/apicomplexa-specific-%C3%AE-hairpin-of-plasmodium-and-toxoplasma-profilins-a-molecular-dynamics-simulation-study
#2
Priyadarsini Kadirvel, Sharmila Anishetty
Profilin is one of the actin-binding proteins that regulate dynamics of actin polymerization. It plays a key role in cell motility and invasion. It also interacts with several other proteins notably through its poly-L-proline (PLP) binding site. Profilin in apicomplexa is characterized by a unique mini-domain consisting of a large β-hairpin extension and an acidic loop which is relatively longer in Plasmodium species. Profilin is essential for the invasive blood stages of Plasmodium falciparum. In the current study, unbound profilins from Plasmodium falciparum (Pf), Toxoplasma gondii (Tg) and Homo sapiens (Hs) were subjected to molecular dynamics (MD) simulations for a timeframe of 100 ns each to understand the conformational dynamics of these proteins...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236287/characterization-of-a-norovirus-specific-monoclonal-antibody-that-exhibits-wide-spectrum-binding-activities
#3
Lijun Zheng, Wenhui Wang, Jinjin Liu, Xuhui Chen, Sanjing Li, Qiaoli Wang, Yuqi Huo, Chuan Qin, Shuo Shen, Mingchen Wang
Noroviruses (NoVs) are increasingly recognized as the leading cause of acute non-bacterial gastroenteritis worldwide. To screen for NoV-specific monoclonal antibodies (mAbs) with wide spectrum binding activities that could be used for the development of NoV-related detection reagents, we immunized mice with a combination of virus like particles (VLPs) derived from eight different genotypes (two from genogroup I and six from genogroup II), of which two (GI.7 and GII.2) were newly produced VLPs. Indirect enzyme-linked immunosorbent assay (ELISA) confirmed that two mAbs (8D8 and 10B11) bound to all eight major capsid proteins (VP1) with varied binding abilities...
December 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29236234/assessment-of-the-functional-impact-of-germline-brca1-2-variants-located-in-non-coding-regions-in-families-with-breast-and-or-ovarian-cancer-predisposition
#4
E Santana Dos Santos, S M Caputo, L Castera, M Gendrot, A Briaux, M Breault, S Krieger, P K Rogan, E J Mucaki, L J Burke, I Bièche, C Houdayer, D Vaur, D Stoppa-Lyonnet, M A Brown, F Lallemand, E Rouleau
PURPOSE: The molecular mechanism of breast and/or ovarian cancer susceptibility remains unclear in the majority of patients. While germline mutations in the regulatory non-coding regions of BRCA1 and BRCA2 genes have been described, screening has generally been limited to coding regions. The aim of this study was to evaluate the contribution of BRCA1/2 non-coding variants. METHODS: Four BRCA1/2 non-coding regions were screened using high-resolution melting analysis/Sanger sequencing or next-generation sequencing on DNA extracted from index cases with breast and ovarian cancer predisposition (3926 for BRCA1 and 3910 for BRCA2)...
December 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29236200/electrophysiologic-features-of-protected-channels-in-late-postinfarction-patients-with-and-without-spontaneous-ventricular-tachycardia
#5
Sachin Nayyar, Lauren Wilson, Anand Ganesan, Thomas Sullivan, Pawel Kuklik, Glenn Young, Prashanthan Sanders, Kurt C Roberts-Thomson
PURPOSE: Protected channels of surviving myocytes in late postinfarction ventricular scar predispose to ventricular tachycardia (VT). However, only a few patients develop VT spontaneously. We studied differences in electric remodeling and protected channels in late postinfarction patients with and without spontaneous VT. METHODS: Patients with ischemic cardiomyopathy (ICM) with recurrent sustained monomorphic VT (n = 22) were compared with stable ICM patients without spontaneous VT (control group; n = 5)...
December 13, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29236064/recent-advances-in-marine-algae-polysaccharides-isolation-structure-and-activities
#6
REVIEW
Shu-Ying Xu, Xuesong Huang, Kit-Leong Cheong
Marine algae have attracted a great deal of interest as excellent sources of nutrients. Polysaccharides are the main components in marine algae, hence a great deal of attention has been directed at isolation and characterization of marine algae polysaccharides because of their numerous health benefits. In this review, extraction and purification approaches and chemico-physical properties of marine algae polysaccharides (MAPs) are summarized. The biological activities, which include immunomodulatory, antitumor, antiviral, antioxidant, and hypolipidemic, are also discussed...
December 13, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29235941/ethical-challenges-in-community-based-participatory-research-a-scoping-review
#7
Elena Wilson, Amanda Kenny, Virginia Dickson-Swift
Ethical challenges in community-based participatory research (CBPR) are of increasing interest to researchers; however, it is not known how widespread these challenges are or how extensively the topic has been explored. Using Arksey and O'Malley's scoping review method, studies on ethical challenges in CBPR were mapped. Findings indicate that researchers continue to raise questions about ethics associated with CBPR. Our purpose in this article is to present a thematic summary of international ethical challenges as a guide for researchers interested in community participatory approaches and to better prepare them for qualitative health research with communities...
January 2018: Qualitative Health Research
https://www.readbyqxmd.com/read/29235856/a-machine-driven-hunt-for-global-reaction-coordinates-of-azobenzene-photoisomerization
#8
Pedram Tavadze, Guillermo Avendaño-Franco, Pngju Ren, Xiaodong Wen, Yongwang Li, James P Lewis
Azobenzene is a very important system which is often studied to better understanding light-activated mechanical transformations via photoisomerization. The central C-N=N-C dihedral angle is widely recognized as the primary reaction coordinate for changing cis- to trans-azobenzene and vice versa. We report on a global reaction coordinate (containing all internal coordinates) to thoroughly describe the reaction mechanism for azobenzene photoisomerization. Our global reaction coordinate includes all of the internal coordinates of azobenzene contributing to the photoisomerization reaction coordinate...
December 13, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29235850/a-digital-protocol-for-chemical-analysis-at-ultra-low-concentrations-by-surface-enhanced-raman-scattering
#9
Carlos Diego L de Albuquerque, Regivaldo Gomes Sobral Filho, Ronei Jesus Poppi, Alexandre G Brolo
Single molecule surface-enhanced Raman Spectroscopy (SM-SERS) has the potential to revolutionize quantitative analysis at ultra-low concentrations (less than 1 nM). However, there are no established protocols to generalize the application of this technique in analytical chemistry. Here, a protocol for quantification at ultra-low concentrations using SM-SERS is proposed. The approach aims to take advantage of the stochastic nature of the single-molecule regime to achieved lower limits of detection (LOD) and quantification (LOQ)...
December 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29235648/anatomical-map-of-the-cranial-vasculature-and-sensory-ganglia
#10
Laura Taberner, Aitor Bañón, Berta Alsina
There is growing evidence of a direct influence of vasculature on the development of neurons in the brain. The development of the cranial vasculature has been well described in zebrafish but its anatomical relationship with the adjacent developing sensory ganglia has not been addressed. Here, by 3D imaging of fluorescently labelled blood vessels and sensory ganglia, we describe for the first time the spatial organization of the cranial vasculature in relation to the cranial ganglia during zebrafish development...
December 13, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29235462/atomic-resolution-three-dimensional-hydration-structures-on-a-heterogeneously-charged-surface
#11
Kenichi Umeda, Lidija Zivanovic, Kei Kobayashi, Juha Ritala, Hiroaki Kominami, Peter Spijker, Adam S Foster, Hirofumi Yamada
Local hydration structures at the solid-liquid interface around boundary edges on heterostructures are key to an atomic-level understanding of various physical, chemical and biological processes. Recently, we succeeded in visualising atomic-scale three-dimensional hydration structures by using ultra-low noise frequency-modulation atomic force microscopy. However, the time-consuming three-dimensional-map measurements on uneven heterogeneous surfaces have not been achieved due to experimental difficulties, to the best of our knowledge...
December 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29235405/mapping-the-balint-groups-to-the-accreditation-council-for-graduate-medical-education-family-medicine-competencies
#12
Albert Lichtenstein, Jumana Antoun, Chris Rule, Katherine Knowlton, Jeffrey Sternlieb
Introduction Balint group discussions provide learning opportunities for many of the competencies and milestones put forward by the Accreditation Council for Graduate Medical Education. The current literature is mixed concerning the effect of Balint groups on communication skills and professionalism. Aim To map the content of the Balint discussion to the competencies and milestones put forward by the Accreditation Council for Graduate Medical Education. METHODOLOGY: A group who were both experts in Balint and members of the clinical competency committee of residency programs rated narratives that summarized Balint group discussions...
January 1, 2017: International Journal of Psychiatry in Medicine
https://www.readbyqxmd.com/read/29235400/role-of-bevacizumab-in-the-management-of-the-patient-with-malignant-pleural-effusion-more-questions-than-answers
#13
Ralph Llewel Sabang, Deepthi Gandhiraj, Michael Fanucchi, Oleg Epelbaum
Malignant pleural effusion (MPE) is a feature of metastatic cancer that is associated with significant morbidity and healthcare costs. The typical current management of MPE involves the combination of systemic chemotherapy and mechanical intervention in the pleural space. Vascular endothelial growth factor (VEGF), an extremely potent inducer of vascular permeability, has been shown to mediate fluid formation in pleural malignancy. Therefore, bevacizumab, an inhibitor of VEGF activity, offers theoretical promise as a means of abolishing fluid formation in MPE...
December 13, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/29235269/application-of-generative-autoencoder-in-de-novo-molecular-design
#14
Thomas Blaschke, Marcus Olivecrona, Ola Engkvist, Jürgen Bajorath, Hongming Chen
A major challenge in computational chemistry is the generation of novel molecular structures with desirable pharmacological and physiochemical properties. In this work, we investigate the potential use of autoencoder, a deep learning methodology, for de novo molecular design. Various generative autoencoders were used to map molecule structures into a continuous latent space and vice versa and their performance as structure generator was assessed. Our results show that the latent space preserves chemical similarity principle and thus can be used for the generation of analogue structures...
December 13, 2017: Molecular Informatics
https://www.readbyqxmd.com/read/29235194/dual-sensitivity-multiple-sclerosis-lesion-and-csf-segmentation-for-multichannel-3t-brain-mri
#15
Dominik S Meier, Charles R G Guttmann, Subhash Tummala, Nicola Moscufo, Michele Cavallari, Shahamat Tauhid, Rohit Bakshi, Howard L Weiner
BACKGROUND AND PURPOSE: A pipeline for fully automated segmentation of 3T brain MRI scans in multiple sclerosis (MS) is presented. This 3T morphometry (3TM) pipeline provides indicators of MS disease progression from multichannel datasets with high-resolution 3-dimensional T1-weighted, T2-weighted, and fluid-attenuated inversion-recovery (FLAIR) contrast. 3TM segments white (WM) and gray matter (GM) and cerebrospinal fluid (CSF) to assess atrophy and provides WM lesion (WML) volume. METHODS: To address nonuniform distribution of noise/contrast (eg, posterior fossa in 3D-FLAIR) of 3T magnetic resonance imaging, the method employs dual sensitivity (different sensitivities for lesion detection in predefined regions)...
December 13, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29235193/chronic-musculoskeletal-pain-in-european-older-adults-cross-national-and-gender-differences
#16
M Cimas, A Ayala, B Sanz, M S Agulló-Tomás, A Escobar, M J Forjaz
BACKGROUND: In an ageing Europe, chronic pain is a major public health problem, but robust epidemiological data are scarce. This study aimed to analyse the prevalence of and factors associated with chronic musculoskeletal pain by gender in older adults of 14 European countries. METHODS: A cross-sectional study was performed from wave 5 of the Survey of Health, Ageing and Retirement in Europe (SHARE). The study included people ≥50 years residing in Austria, Belgium, Czech Republic, Denmark, Estonia, France, Germany, Italy, Luxembourg, the Netherlands, Slovenia, Spain, Sweden and Switzerland...
December 12, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29235192/influence-of-implant-position-in-implant-assisted-removable-partial-denture-a-three-dimensional-finite-element-analysis
#17
Octavi Ortiz-Puigpelat, Aida Lázaro-Abdulkarim, Javier-María de Medrano-Reñé, Jordi Gargallo-Albiol, Josep Cabratosa-Termes, Federico Hernández-Alfaro
PURPOSE: To determine the ideal position of a dental implant to assist a posterior extended partial removable dental prosthesis (PRDP), through stress values, displacement values, and deformation of periodontal ligament (PDL). MATERIALS AND METHODS: A finite element analysis of different implant positions was analyzed using a 3D mandible model from a human patient. Test models were created: model A (implant in second molar area), model B (implant in the first molar area), and model C (implant in premolar area)...
December 13, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29235140/the-changing-role-of-sound-symbolism-for-small-versus-large-vocabularies
#18
James Brand, Padraic Monaghan, Peter Walker
Natural language contains many examples of sound-symbolism, where the form of the word carries information about its meaning. Such systematicity is more prevalent in the words children acquire first, but arbitrariness dominates during later vocabulary development. Furthermore, systematicity appears to promote learning category distinctions, which may become more important as the vocabulary grows. In this study, we tested the relative costs and benefits of sound-symbolism for word learning as vocabulary size varies...
December 12, 2017: Cognitive Science
https://www.readbyqxmd.com/read/29235045/axillary-staging-for-breast-cancer-during-pregnancy-feasibility-and-safety-of-sentinel-lymph-node-biopsy
#19
S N Han, F Amant, E H Cardonick, S Loibl, F A Peccatori, O Gheysens, C A Sangalli, V Nekljudova, K Dahl Steffensen, M Mhallem Gziri, C P Schröder, C A R Lok, A Verest, P Neven, A Smeets, G Pruneri, M Cremonesi, O Gentilini
BACKGROUND: Safety of sentinel lymph node (SLN) biopsy for breast cancer during pregnancy is insufficiently explored. We investigated efficacy and local recurrence rate in a large series of pregnant patients. PATIENTS AND METHODS: Women diagnosed with breast cancer who underwent SLN biopsy during pregnancy were identified from the International Network on Cancer, Infertility and Pregnancy, the German Breast Group, and the Cancer and Pregnancy Registry. Chart review was performed to record technique and outcome of SLN biopsy, locoregional and distant recurrence, and survival...
December 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29234997/learning-epistatic-interactions-from-sequence-activity-data-to-predict-enantioselectivity
#20
Julian Zaugg, Yosephine Gumulya, Alpeshkumar K Malde, Mikael Bodén
Enzymes with a high selectivity are desirable for improving economics of chemical synthesis of enantiopure compounds. To improve enzyme selectivity mutations are often introduced near the catalytic active site. In this compact environment epistatic interactions between residues, where contributions to selectivity are non-additive, play a significant role in determining the degree of selectivity. Using support vector machine regression models we map mutations to the experimentally characterised enantioselectivities for a set of 136 variants of the epoxide hydrolase from the fungus Aspergillus niger (AnEH)...
December 12, 2017: Journal of Computer-aided Molecular Design
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