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Lara J G Wandling, George R Wandling, Mary Faith Marshall, Michael S Lee
No abstract text is available yet for this article.
October 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
Ashton A Connor, Robert E Denroche, Gun Ho Jang, Lee Timms, Sangeetha N Kalimuthu, Iris Selander, Treasa McPherson, Gavin W Wilson, Michelle A Chan-Seng-Yue, Ivan Borozan, Vincent Ferretti, Robert C Grant, Ilinca M Lungu, Eithne Costello, William Greenhalf, Daniel Palmer, Paula Ghaneh, John P Neoptolemos, Markus Buchler, Gloria Petersen, Sarah Thayer, Michael A Hollingsworth, Alana Sherker, Daniel Durocher, Neesha Dhani, David Hedley, Stefano Serra, Aaron Pollett, Michael H A Roehrl, Prashant Bavi, John M S Bartlett, Sean Cleary, Julie M Wilson, Ludmil B Alexandrov, Malcolm Moore, Bradly G Wouters, John D McPherson, Faiyaz Notta, Lincoln D Stein, Steven Gallinger
Importance: Outcomes for patients with pancreatic ductal adenocarcinoma (PDAC) remain poor. Advances in next-generation sequencing provide a route to therapeutic approaches, and integrating DNA and RNA analysis with clinicopathologic data may be a crucial step toward personalized treatment strategies for this disease. Objective: To classify PDAC according to distinct mutational processes, and explore their clinical significance. Design, Setting, and Participants: We performed a retrospective cohort study of resected PDAC, using cases collected between 2008 and 2015 as part of the International Cancer Genome Consortium...
October 20, 2016: JAMA Oncology
Stephen J Hile, Matthew B Feldman, Amanda R Raker, Mary K Irvine
PURPOSE: To collect information that will inform the development of an intervention to support the maintenance of HIV-related health-promoting behaviors. DESIGN: Focused, in-depth individual and group interviews. SETTING: The New York City (NYC) Department of Health and Mental Hygiene (DOHMH) and DOHMH-funded community-based organizations that primarily serve low-income people living with HIV within the five boroughs of NYC. PARTICIPANTS: A total of 42 individuals who had participated in The Positive Life Workshop-an HIV self-management intervention adapted and implemented by the NYC DOHMH...
October 20, 2016: American Journal of Health Promotion: AJHP
Alasdair Vance, Janet McGaw, Jo Winther, Moira Rayner, Selena White, Alison Smith
OBJECTIVE: Recently, Indigenous academics have evolved an Indigenist discourse that centralises Indigenous 'ways of knowing, being and doing'. Through this dialogue, Indigenous 'ways of knowing and being' augment Western biopsychosocial treatments. METHODS: This paper outlines the authors' clinical encounters with young people from the Koori community and ongoing consultation with Koori community Elders in Victoria that led to engaging young people and their families in an Indigenist dialogue...
October 7, 2016: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
Shosuke Satake, Hidenori Arai
PURPOSE OF REVIEW: Many frailty screening instruments have been proposed due to the lack of consensus on a unified operational definition of frailty. This review reports on recent frailty screening tools in addition to revisiting the frailty concept. RECENT FINDINGS: Although there are two representative frailty models, both have issues that prevent them from being implemented in clinical settings despite their remarkable advantages. Due to their different characteristics, these models are thought to be complementary rather than substitutive...
October 18, 2016: Current Opinion in Clinical Nutrition and Metabolic Care
Christophe B Pipon, Marie-Ève Lemoine, Maude Laliberté, Bryn Williams-Jones, Dan Bustillos, Anonymous One, Anonymous Two, Ashley K Fernandes, Anonymous Three, Thomas D Harter, D Micah Hester, Anonymous Four, Mary Faith Marshall, Philip M Rosoff, Giles R Scofield
No abstract text is available yet for this article.
2016: Narrative Inquiry in Bioethics
Srinika Ranasinghe, Pedro A Lamothe, Damien Z Soghoian, Samuel W Kazer, Michael B Cole, Alex K Shalek, Nir Yosef, R Brad Jones, Faith Donaghey, Chioma Nwonu, Priya Jani, Gina M Clayton, Frances Crawford, Janice White, Alana Montoya, Karen Power, Todd M Allen, Hendrik Streeck, Daniel E Kaufmann, Louis J Picker, John W Kappler, Bruce D Walker
CD8(+) T cell recognition of virus-infected cells is characteristically restricted by major histocompatibility complex (MHC) class I, although rare examples of MHC class II restriction have been reported in Cd4-deficient mice and a macaque SIV vaccine trial using a recombinant cytomegalovirus vector. Here, we demonstrate the presence of human leukocyte antigen (HLA) class II-restricted CD8(+) T cell responses with antiviral properties in a small subset of HIV-infected individuals. In these individuals, T cell receptor β (TCRβ) analysis revealed that class II-restricted CD8(+) T cells underwent clonal expansion and mediated killing of HIV-infected cells...
October 18, 2016: Immunity
Anita Strezova, Sheila O'Neill, Cathy O'Callaghan, Astrid Perry, Jinzhu Liu, John Eden
OBJECTIVE: This study explored the attitudes to, and experience of, menopause among Macedonian women living in Australia, including attitudes and responses to hormone therapy (HT) and complementary therapies, as well as related psycho-sexual, relationship and other midlife issues. METHODS: Using qualitative methodology, the study was based on seven unstructured, nondirective group discussions. Natural social groups were recruited, meeting wherever each group felt most at home...
October 10, 2016: Menopause: the Journal of the North American Menopause Society
Buki Kwon, Palinda Ruvan Munashingha, Yong-Keol Shin, Chul-Hwan Lee, Bing Li, Yeon-Soo Seo
Highly conserved eukaryotic histones are polybasic proteins that package DNA into nucleosomes, a building block of chromatin, allowing extremely long DNA molecules to form compact and discrete chromosomes. The histone N-terminal tails that extend from the nucleosome core act as docking sites for many proteins through diverse posttranslational modifications, regulating various DNA transactions. In this report, we present evidence that the nucleosomes can positively regulate the enzymatic activity of Rad27 (yeast Fen1), a major processing enzyme important for Okazaki fragment in eukaryotes...
October 19, 2016: FEBS Journal
M H Reiskind, R H Griffin, M S Janairo, K A Hopperstad
Knowledge of the distribution of arthropod vectors across a landscape is important in determining the risk for vector-borne disease. This has been well explored for ticks, but not for mosquitoes, despite their importance in the transmission of a variety of pathogens. This study examined the importance of habitat, habitat edges, and the scale at which mosquito abundance and diversity vary in a rural landscape by trapping along transects from grassland areas into forest patches. Significant patterns of vector diversity and distinct mosquito assemblages across habitats were found...
October 19, 2016: Medical and Veterinary Entomology
Vincenzo Sannino, Arun M Kolinjivadi, Giorgio Baldi, Vincenzo Costanzo
The correct duplication of genetic information is essential to maintain genome stability, which is lost in cancer cells. Replication fork integrity is ensured by a number of DNA metabolism proteins that assist replication of chromatin regions difficult to replicate due to their intrinsic DNA sequence composition, coordinate repair of DNA molecules resulting from aberrant replication events or protect replication forks in the presence of lesions impairing their progression. Some DNA metabolism genes involved in DNA repair are essential in higher eukaryotes even in unchallenged conditions, suggesting the existence of biological processes requiring these specialized functions in organisms with complex genomes...
2016: International Journal of Developmental Biology
J Julian Blow, Ronald A Laskey
Here we discuss the important contributions that cell-free extracts have made to the study of complex biological processes. We provide a brief history of how cell-free extracts of frog eggs were developed to avoid many of the problems that can arise from the dilution and mixing of cellular components that typically occur when cell-free extracts are prepared. We briefly describe how Xenopus egg extracts have been fundamental to the study of many important cellular processes including DNA replication, cell cycle progression, nuclear protein import, nuclear assembly and chromosome organisation...
2016: International Journal of Developmental Biology
Zhong-Ke Gao, Qing Cai, Yu-Xuan Yang, Wei-Dong Dang, Shan-Shan Zhang
Visibility graph has established itself as a powerful tool for analyzing time series. We in this paper develop a novel multiscale limited penetrable horizontal visibility graph (MLPHVG). We use nonlinear time series from two typical complex systems, i.e., EEG signals and two-phase flow signals, to demonstrate the effectiveness of our method. Combining MLPHVG and support vector machine, we detect epileptic seizures from the EEG signals recorded from healthy subjects and epilepsy patients and the classification accuracy is 100%...
October 19, 2016: Scientific Reports
Alsacia L Sepulveda-Pacsi, Grenny Hiraldo, Keville Frederickson
BACKGROUND: Two thirds of respondents of a recent survey, primarily self-identified urban immigrant Dominican females, indicated that cancer was the health problem they worried about the most. PURPOSE: The purpose of this qualitative study was to gain a greater understanding of the cancer worry experienced by Dominican women. DESIGN: Giorgi's descriptive existential phenomenological framework and methodology guided the study. SETTING: Washington Heights/Inwood community, New York City, New York...
October 6, 2016: Journal of Transcultural Nursing: Official Journal of the Transcultural Nursing Society
Bernard Omolo, Mingli Yang, Fang Yin Lo, Michael J Schell, Sharon Austin, Kellie Howard, Anup Madan, Timothy J Yeatman
BACKGROUND: The KRAS gene is mutated in about 40 % of colorectal cancer (CRC) cases, which has been clinically validated as a predictive mutational marker of intrinsic resistance to anti-EGFR inhibitor (EGFRi) therapy. Since nearly 60 % of patients with a wild type KRAS fail to respond to EGFRi combination therapies, there is a need to develop more reliable molecular signatures to better predict response. Here we address the challenge of adapting a gene expression signature predictive of RAS pathway activation, created using fresh frozen (FF) tissues, for use with more widely available formalin fixed paraffin-embedded (FFPE) tissues...
October 19, 2016: BMC Medical Genomics
Gary M Lovett, Marissa Weiss, Andrew M Liebhold, Thomas P Holmes, Brian Leung, Kathy Fallon Lambert, David A Orwig, Faith T Campbell, Jonathan Rosenthal, Deborah G McCullough, Radka Wildova, Matthew P Ayres, Charles D Canham, David R Foster, Shannon L LaDeau, Troy Weldy
We review and synthesize information on invasions of nonnative forest insects and diseases in the United States, including their ecological and economic impacts, pathways of arrival, distribution within the United States, and policy options for reducing future invasions. Nonnative insects have accumulated in United States forests at a rate of ~2.5 per yr over the last 150 yr. Currently the two major pathways of introduction are importation of live plants and wood packing material such as pallets and crates...
July 2016: Ecological Applications: a Publication of the Ecological Society of America
J Martins, F Almada, A Gonçalves, P Duarte-Coelho, P E Jorge
The ability to be faithful to a particular area or site was analysed in the shanny Lipophrys pholis. Using passive integrated transponders, adults from a population of L. pholis at Cabo Raso, Portugal, were followed over a period of 3 years. The findings showed that site fidelity is a consistent behaviour during the breeding season with specific breeding males being found only in particular sectors within the area, and in specific nests throughout the years. The fact that, in general, L. pholis individuals were absent from the study area during the non-breeding season and breeding males were recorded returning to the same nests and sectors for consecutive breeding seasons suggests that they have developed excellent homing abilities...
October 16, 2016: Journal of Fish Biology
Brigham J Hartley, Kristen J Brennand
Human induced pluripotent stem cells (hiPSCs) can theoretically yield limitless supplies of cells fated to any cell type that comprise the human organism, making them a new tool by which to potentially overcome caveats in current biomedical research. In vitro derivation of central nervous system (CNS) cell types has the potential to provide material for drug discovery and validation, safety and toxicity assays, cell replacement therapy and the elucidation of previously unknown disease mechanisms. However, current two-dimensional (2D) CNS differentiation protocols do not faithfully recapitulate the spatial organization of heterogeneous tissue, nor the cell-cell interactions, cell-extracellular matrix interactions, or specific physiological functions generated within complex tissue such as the brain...
October 12, 2016: Neurochemistry International
Gozde Eskici, Paul H Axelsen
Reverse micelles (RMs) made from water and sodium bis(2-ethylhexyl) sulfosuccinate (AOT) are commonly studied experimentally as models of aqueous microenvironments. They are small enough for individual RMs to also be studied by molecular dynamics (MD) simulation, which yields detailed insight into their structure and properties. Although RM size is determined by the water loading ratio (i.e. the molar ratio of water to AOT), experimental measurements of RM size are imprecise and inconsistent, which is problematic when designing models for study by MD simulation...
October 14, 2016: Journal of Physical Chemistry. B
James M Shultz, Janice L Cooper, Florence Baingana, Maria A Oquendo, Zelde Espinel, Benjamin M Althouse, Louis Herns Marcelin, Sherry Towers, Maria Espinola, Clyde B McCoy, Laurie Mazurik, Milton L Wainberg, Yuval Neria, Andreas Rechkemmer
The 2013-2016 West Africa Ebola virus disease pandemic was the largest, longest, deadliest, and most geographically expansive outbreak in the 40-year interval since Ebola was first identified. Fear-related behaviors played an important role in shaping the outbreak. Fear-related behaviors are defined as "individual or collective behaviors and actions initiated in response to fear reactions that are triggered by a perceived threat or actual exposure to a potentially traumatizing event. FRBs modify the future risk of harm...
November 2016: Current Psychiatry Reports
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