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https://www.readbyqxmd.com/read/28454427/chemoresistance-in-pancreatic-cancer-emerging-concepts
#1
Manu Gnanamony, Christopher S Gondi
Pancreatic cancer is one of the most lethal types of cancer in the world. The incidence of pancreatic cancer increases each year with no significant decrease in mortality. Pancreatic cancer is a complex disease, and this complexity is partly attributed to late diagnosis, an aggressive phenotype, environmental factors and lack of effective treatment options. Surgical resection followed by adjuvant chemotherapy is the treatment of choice for early stage cancer, whereas gemcitabine is the standard first line therapy for patients with advanced stage disease...
April 2017: Oncology Letters
https://www.readbyqxmd.com/read/28453826/unplanned-readmissions-within-30-days-after-discharge-improving-quality-through-easy-prediction
#2
Francesca Casalini, Susanna Salvetti, Silvia Memmini, Elena Lucaccini, Gabriele Massimetti, Pier Luigi Lopalco, Gaetano Pierpaolo Privitera
Objective: To propose an easy predictive model for the risk of rehospitalization, built from hospital administrative data, in order to prevent repeated admissions and to improve transitional care. Design: Retrospective cohort study. Setting: Azienda Ospedaliero Universitaria Pisana (Pisa University Hospital). Participants: Patients residing in the territory of the province of Pisa (Tuscany Region) with at least one unplanned hospital admission leading to a medical Diagnosis-Related Group (DRG) in the calendar year 2012...
April 1, 2017: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/28448499/when-do-correlations-increase-with-firing-rates-in-recurrent-networks
#3
Andrea K Barreiro, Cheng Ly
A central question in neuroscience is to understand how noisy firing patterns are used to transmit information. Because neural spiking is noisy, spiking patterns are often quantified via pairwise correlations, or the probability that two cells will spike coincidentally, above and beyond their baseline firing rate. One observation frequently made in experiments, is that correlations can increase systematically with firing rate. Theoretical studies have determined that stimulus-dependent correlations that increase with firing rate can have beneficial effects on information coding; however, we still have an incomplete understanding of what circuit mechanisms do, or do not, produce this correlation-firing rate relationship...
April 27, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28447845/time-course-of-motor-affordances-evoked-by-pictured-objects-and-words
#4
Daniel N Bub, Michael E J Masson, Ragav Kumar
Correspondence effects based on the relationship between the left/right position of a pictured object's handle and the hand used to make a response, or on the size of the object and the nature of a grip response (power/precision), have been attributed to motor affordances evoked by the object. Effects of this nature, however, are readily explained by the similarity in the abstract spatial coding of the features that define the stimulus and response, without recourse to object-based affordances. We propose that in the task context of making reach-and-grasp actions, pictured objects may evoke genuine, limb-specific action constituents...
April 27, 2017: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/28447834/perspectives-of-low-income-chronically-ill-patients-on-complex-care-management
#5
Alice Y Mao, Rachel Willard-Grace, Leslie Dubbin, Louise Aronson, Alicia Fernandez, Nancy J Burke, Julia Finch, Elizabeth Davis
INTRODUCTION: Low-income, chronically ill adults disproportionately experience poor health outcomes despite increased health care use and costs. Complex care management (CCM) programs are an innovative approach to improving outcomes for these patients, but little is known about the patients' experiences in CCM programs in safety net primary care settings. METHOD: The authors conducted semistructured interviews with 13 CCM participants in a safety net primary care clinic to explore their perceptions of their health and their experiences with CCM...
April 27, 2017: Families, Systems & Health: the Journal of Collaborative Family Healthcare
https://www.readbyqxmd.com/read/28447144/-standardized-collection-of-presenting-complaints-in-the-emergency-room-integration-of-coded-presenting-complaints-into-the-electronic-medical-record-system-of-an-emergency-department-and-their-value-for-health-care-research
#6
F Greiner, D Brammen, M Kulla, F Walcher, B Erdmann
BACKGROUND: The point of entry of a patient in emergency care is a symptom or a complaint. To evaluate subsequent processes in an emergency department until a diagnosis is made, this information has to be taken into account. OBJECTIVES: We report the introduction of coded presenting complaints into the electronic medical record system of an emergency department and describe the patients based on these data. METHODS: The CEDIS presenting complaint list was integrated into the emergency department information system of an emergency department (38,000 patients/year)...
April 26, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28446673/pacmanvirus-a-new-giant-icosahedral-virus-at-the-crossroads-between-asfarviridae-and-faustoviruses
#7
Julien Andreani, Jacques Yaacoub Bou Khalil, Madhumati Sevvana, Samia Benamar, Fabrizio Di Pinto, Idir Bitam, Philippe Colson, Thomas Klose, Michael G Rossmann, Didier Raoult, Bernard La Scola
African swine fever virus, a double stranded DNA virus infecting pigs, is the only known member of the Asfarviridae family. Nevertheless, during our isolation and sequencing of the complete genome of Faustovirus followed by the description of Kaumoebavirus, carried out over the past two years, we observed the emergence of previously unknown related viruses within this group of viruses. Here, we describe the isolation of Pacmanvirus, a fourth member in this group, capable of infecting Acanthamoeba castellanii...
April 26, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28446588/hierarchical-differences-in-population-coding-within-auditory-cortex
#8
Joshua David Downer, Mamiko Niwa, Mitchell L Sutter
Most models of auditory cortical (AC) population coding have focused on primary auditory cortex (A1). Thus, our understanding of how neural coding for sounds progresses along the cortical hierarchy remains obscure. To illuminate this, we recorded from AC fields, A1 and middle-lateral belt (ML) of rhesus macaques. We presented amplitude-modulated (AM) noise during both passive listening and while the animals performed an AM detection task ("Active" condition). In both fields, neurons exhibit monotonic AM-depth tuning, with A1 neurons mostly exhibiting increasing rate-depth functions and ML neurons ~evenly distributed between increasing and decreasing functions...
April 26, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28446531/mining-exosomal-genes-for-pancreatic-cancer-targets
#9
Amy Makler, Ramaswamy Narayanan
BACKGROUND: Exosomes, cell-derived vesicles encompassing lipids, DNA, proteins coding genes and noncoding RNAs (ncRNAs) are present in diverse body fluids. They offer novel biomarker and drug therapy potential for diverse diseases, including cancer. MATERIALS AND METHODS: Using gene ontology, exosomal genes database and GeneCards metadata analysis tools, a database of cancer-associated protein coding genes and ncRNAs (n=2,777) was established. Variant analysis, expression profiling and pathway mapping were used to identify putative pancreatic cancer exosomal gene candidates...
May 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28445936/increased-expression-of-zeb1-as1-correlates-with-higher-histopathological-grade-and-promotes-tumorigenesis-in-bladder-cancer
#10
Junhao Lin, Yonghao Zhan, Yuchen Liu, Zhicong Chen, Jianbo Liang, Wei Li, Anbang He, Liqun Zhou, Hongbin Mei, Feng Wang, Weiren Huang
Bladder cancer is one of the most common urinary cancers worldwide. Emerging studies indicated that long non-coding RNAs (lncRNAs) play crucial roles in cancer biology. In this study, we found that a novel lncRNA Zinc finger E-box-binding homeebox1 (ZEB1) antisense RNA (ZEB1-AS1) was overexpressed in bladder cancer tissues compared to paired noncancerous tissues. Moreover, the expression of ZEB1-AS1 was positive correlated with higher histological grade and TNM stage in bladder cancer. Furthermore, Loss-of-function experiments showed that down-regulation of ZEB1-AS1 not only can suppress cell growth but also can inhibit migration and induce apoptosis in bladder cancer cell lines 5637 and SW780...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445788/an-emerging-role-for-the-ribosome-as-a-nexus-for-post-translational-modifications
#11
REVIEW
Deniz Simsek, Maria Barna
The ribosome is one of life's most ancient molecular machines that has historically been viewed as a backstage participant in gene regulation, translating the genetic code across all kingdoms of life in a rote-like fashion. However, recent studies suggest that intrinsic components of the ribosome can be regulated and diversified as a means to intricately control the expression of the cellular proteome. In this review, we discuss advances in the characterization of ribosome post-translational modifications (PTMs) from past to present...
April 22, 2017: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/28445221/changes-in-personal-relationships-during-residency-and-their-effects-on-resident-wellness-a-qualitative-study
#12
Marcus Law, Michelle Lam, Diana Wu, Paula Veinot, Maria Mylopoulos
PURPOSE: Residency poses challenges for residents' personal relationships. Research suggests residents rely on family and friends for support during their training. The authors explored the impact of residency demands on residents' personal relationships and the effects changes in those relationships could have on their wellness. METHOD: The authors used a constructivist grounded theory approach. In 2012-2014, they conducted semistructured interviews with a purposive and theoretical sample of 16 Canadian residents from various specialties and training levels...
April 25, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28441901/patient-emergency-assessment-following-deliberate-self-poisoning-with-benzodiazepines-can-cognitive-markers-predict-recall-of-the-psychiatric-interview-a-pilot-study
#13
J Salles, J Pariente, C Dimeglio, P Gandia, B Lemesle, A Giron, N Franchitto, L Schmitt, E Very
STUDY HYPOTHESIS: In cases of deliberate self-poisoning (DSP), patients often ingest benzodiazepines (BZDs), known to alter memory. Experts recommend recovery of the patient's cognitive capacity before psychiatric assessment. Unfortunately, there is no validated tool in common practice to assess whether sufficient cognitive recovery has occurred after DSP with BZDs to ensure patient memory of the assessment. OBJECTIVE: The aim of the study was to identify cognitive functions and markers which predict preserved memory of the mental health care plan proposed at the emergency department after DSP...
April 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28441334/peptidyl-transferase-center-and-the-emergence-of-the-translation-system
#14
Savio Torres de Farias, Thais Gaudêncio Rêgo, Marco V José
In this work, the three-dimensional (3D) structure of the ancestral Peptidyl Transferase Center (PTC) built by concatamers of ancestral sequences of tRNAs was reconstructed, and its possible interactions with tRNAs molecules were analyzed. The 3D structure of the ancestral PTC was also compared with the current PTC of T. thermophilus. Docking experiments between the ancestral PTC and tRNAs suggest that in the origin of the translation system, the PTC functioned as an adhesion center for tRNA molecules. The approximation of tRNAs charged with amino acids to the PTC permitted peptide synthesis without the need of a genetic code...
April 25, 2017: Life
https://www.readbyqxmd.com/read/28441150/long-non-coding-rnas-in-leukemia-biology-and-clinical-impact
#15
Tim Lammens, Kaat Durinck, Annelynn Wallaert, Frank Speleman, Pieter Van Vlierberghe
PURPOSE OF REVIEW: Over the last years, long non-coding RNAs (lncRNAs) have emerged as putative regulators of malignant hematopoietic development. Here, we review recent literature on the involvement of lncRNAs in leukemia, including their role in driving or sustaining disease and their potential impact on diagnosis, classification, and prognosis. RECENT FINDINGS: Leukemogenesis is a complex process resulting from the accumulation of multiple genetic alterations...
April 22, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28440996/-quality-dimensions-focused-on-the-healthcare-protocol-infarction-code-c%C3%A3-digo-infarto
#16
Jesús Arriaga-Dávila, Gilberto Pérez-Rodríguez, Gabriela Borrayo-Sánchez
The Código Infarto (Infarction Code) strategy is part of the comprehensive care program "A Todo Corazón" (To All Heart), whose aim is to reinforce the prevention and health care of cardiovascular diseases. Mexico faces a big challenge, since it is the country with greater mortality secondary to acute myocardial infarction (AMI) in the first 30 days in patients of 45 years or older (28% compared with 7.9% of the average). In addition, Mexico's population has a high prevalence of risk factors (hypertension, diabetes, tobacco use, dyslipidemias, overweight, and obesity)...
May 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28439272/the-emerging-role-of-epigenetics-in-autoimmune-thyroid-diseases
#17
REVIEW
Bin Wang, Xiaoqing Shao, Ronghua Song, Donghua Xu, Jin-An Zhang
Autoimmune thyroid diseases (AITD) are a group of both B cell- and T cell-mediated organ-specific autoimmune diseases. Graves' disease and Hashimoto thyroiditis are the two main clinical presentations of AITD. Both genetic and environmental factors have important roles in the development of AITD. Epigenetics have been considered to exert key roles in integrating those genetic and environmental factors, and epigenetic modifications caused by environmental factors may drive genetically susceptibility individuals to develop AITD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28438632/molecular-diagnostic-development-for-two-begomovirus-betasatellite-complexes-undergoing-diversification-a-case-study
#18
Judith K Brown, Muhammad Zia Ur-Rehman, Sofia Avelar, N Chingandu, Usman Hameed, Saleem Haider, Muhammad Ilyas
At least five begomoviral species that cause leaf curl disease of cotton have emerged recently in Asia and Africa, reducing fiber quality and yield. The potential for the spread of these viruses to other cotton-vegetable growing regions throughout the world is extensive, owing to routine, global transport of alternative hosts of the leaf curl viruses, especially ornamentals. The research reported here describes the design and validation of polymerase chain reaction (PCR) primers undertaken to facilitate molecular detection of the two most-prevalent leaf curl-associated begomovirus-betasatellite complexes in the Indian Subcontinent and Africa, the Cotton leaf curl Kokhran virus-Burewala strain and Cotton leaf curl Gezira virus, endemic to Asia and Africa, respectively...
April 21, 2017: Virus Research
https://www.readbyqxmd.com/read/28438526/emerging-roles-for-ncrnas-in-alcohol-use-disorders
#19
REVIEW
R Dayne Mayfield
Chronic alcohol exposure produces widespread neuroadaptations and alterations in gene expression in human alcoholics and animal models. Technological advances in the past decade have increasingly highlighted the role of non-protein-coding RNAs (ncRNAs) in the regulation of gene expression and function. These recently characterized molecules were discovered to mediate diverse processes in the central nervous system, from normal development and physiology to regulation of disease, including alcoholism and other psychiatric disorders...
April 15, 2017: Alcohol
https://www.readbyqxmd.com/read/28437750/becoming-comfortable-with-my-epilepsy-strategies-that-patients-use-in-the-journey-from-diagnosis-to-acceptance-and-disclosure
#20
Sinead Pembroke, Agnes Higgins, Niall Pender, Naomi Elliott
OBJECTIVE: Proponents of resilience theory have highlighted the importance of understanding the processes of resilience. The objective of the study was to explore how people with epilepsy reach a stage of being comfortable with their epilepsy. Identifying the processes used is important to developing effective self-management for people who are newly diagnosed with epilepsy. METHOD: A grounded theory approach involving forty-nine consenting adult people with epilepsy (18 years and over), was used to explore their first-hand experiences of coming to terms with their epilepsy...
April 19, 2017: Epilepsy & Behavior: E&B
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