keyword
MENU ▼
Read by QxMD icon Read
search

Predictive processing

keyword
https://www.readbyqxmd.com/read/29046004/-coronary-computed-tomography-angiography-in-patients-with-stable-coronary-artery-disease
#1
Helen Ullrich, Tommaso Gori
The guidelines on the management of stable coronary artery disease (SCAD) recommend the use of coronary computed tomography angiography (CTA) in the process of diagnosing coronary artery disease in patients with low intermediate pre-test probability for SCAD. Particularly in cases where stress electrocardiogram or stress imaging provides unclear results, a computed tomographic examination can be considered as a reliable alternative to invasive coronary angiography. Due to its high negative predictive value, coronary CTA can provide accurate information on the presence of coronary artery stenosis and thus coronary artery disease can be reliably excluded without the risks associated with invasive procedures...
October 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29045940/mir-124-attenuates-osteoclastogenic-differentiation-of-bone-marrow-monocytes-via-targeting-rab27a
#2
Lian Tang, Yiran Yin, Juncai Liu, Zhong Li, Xiaobo Lu
BACKGROUND/AIMS: With the aging population increases, senile osteoporosis has become a global public health problem. Previous evidence has shown that miR-124 has important effects on the occurrence and development of osteoporosis. However, the role of miR-124 in the process of osteoclastogenesis is still obscure. METHODS: First of all, we measured the expression level of miR-124 in bone marrow monocytes (BMMs) of osteoporotic mice (ovariectomized mice: OVX). Next, we evaluated the alteration of miR-124 during osteoclast differentiation of BMMs...
October 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29045882/untangling-the-hairball-fitness-based-asymptotic-reduction-of-biological-networks
#3
Félix Proulx-Giraldeau, Thomas J Rademaker, Paul François
Complex mathematical models of interaction networks are routinely used for prediction in systems biology. However, it is difficult to reconcile network complexities with a formal understanding of their behavior. Here, we propose a simple procedure (called ϕ¯) to reduce biological models to functional submodules, using statistical mechanics of complex systems combined with a fitness-based approach inspired by in silico evolution. The ϕ¯ algorithm works by putting parameters or combination of parameters to some asymptotic limit, while keeping (or slightly improving) the model performance, and requires parameter symmetry breaking for more complex models...
October 17, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/29045732/life-history-adaptations-to-seasonality
#4
Øystein Varpe
Seasonality creates a template for many natural processes and evolutionary adaptations. Organisms are often faced with an annual cycle consisting of a productive (favorable) and unproductive period. This yearly cycle along with other seasonal variations in abiotic factors and associated biotic interactions form strong selection pressures shaping the scheduling of annual activities and the developmental stages and modes of life through the year. Annual decisions impact trade-offs that involve both current and future reproductive value (RV), and life history theory provides the foundation to understand these linkages between phenology and an organism's full life...
October 16, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/29045685/micrornas-and-complex-diseases-from-experimental-results-to-computational-models
#5
Xing Chen, Di Xie, Qi Zhao, Zhu-Hong You
Plenty of microRNAs (miRNAs) were discovered at a rapid pace in plants, green algae, viruses and animals. As one of the most important components in the cell, miRNAs play a growing important role in various essential and important biological processes. For the recent few decades, amounts of experimental methods and computational models have been designed and implemented to identify novel miRNA-disease associations. In this review, the functions of miRNAs, miRNA-target interactions, miRNA-disease associations and some important publicly available miRNA-related databases were discussed in detail...
October 17, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/29045548/bold-activity-during-correct-answer-feedback-in-cued-recall-predicts-subsequent-retrieval-performance-an-fmri-investigation-using-a-partial-trial-design
#6
Adrian W Gilmore, Steven M Nelson, Farah Naaz, Ruth A Shaffer, Kathleen B McDermott
Receiving correct answer feedback following a retrieval attempt has proven to be a highly effective means of learning new information, yet the mechanisms behind its efficacy remain poorly understood. Here, fMRI was used to examine how BOLD activity measured during a period of feedback could predict subsequent memory (SM) performance on a final test. Twenty-five human subjects studied pairs of associated words, and were then asked to covertly recall target words in response to provided cues. Correct answer feedback was provided immediately after covert retrieval attempts...
October 17, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/29045546/characterization-of-adipose-tissue-product-quality-using-measurements-of-oxygen-consumption-rate
#7
Thomas M Suszynski, David A Sieber, Kathryn Mueller, Allen L Van Beek, Bruce L Cunningham, Jeffrey M Kenkel
Background: Fat grafting is a common procedure in plastic surgery but associated with unpredictable graft retention. Adipose tissue (AT) "product" quality is affected by the methods used for harvest, processing and transfer, which vary widely amongst surgeons. Currently, there is no method available to accurately assess the quality of AT. Objectives: In this study, we present a novel method for the assessment of AT product quality through direct measurements of oxygen consumption rate (OCR)...
October 13, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29045469/incident-experience-predicts-freezing-like-responses-in-firefighters
#8
Verena Ly, Linsey Roijendijk, Hans Hazebroek, Clemon Tonnaer, Muriel A Hagenaars
Freezing is a defensive response to acute stress that is associated with coping and alterations in attentional processing. However, it remains unclear whether individuals in high risk professions, who are skilled at making rapid decisions in emergency situations, show altered threat-induced freezing. Here we investigated the effect of incident experience in a high risk profession on freezing. Additionally, we explored whether any effect of incident experience on freezing would be different for profession-related and -unrelated threat...
2017: PloS One
https://www.readbyqxmd.com/read/29045451/getting-to-the-heart-of-the-matter-does-aberrant-interoceptive-processing-contribute-towards-emotional-eating
#9
Hayley A Young, Claire Williams, Aimee E Pink, Gary Freegard, Amy Owens, David Benton
According to estimates from Public Health England, by 2034 70% of adults are expected to be overweight or obese, therefore understanding the underpinning aetiology is a priority. Eating in response to negative affect contributes towards obesity, however, little is known about the underlying mechanisms. Evidence that visceral afferent signals contribute towards the experience of emotion is accumulating rapidly, with the emergence of new influential models of 'active inference'. No longer viewed as a 'bottom up' process, new interoceptive facets based on 'top down' predictions have been proposed, although at present it is unclear which aspects of interoception contribute to aberrant eating behaviour and obesity...
2017: PloS One
https://www.readbyqxmd.com/read/29045410/patterns-and-rates-of-viral-evolution-in-hiv-1-subtype-b-infected-females-and-males
#10
Michael J Dapp, Kord M Kober, Lennie Chen, Dylan H Westfall, Kim Wong, Hong Zhao, Breana M Hall, Wenjie Deng, Thomas Sibley, Suvankar Ghorai, Katie Kim, Natalie Chen, Sarah McHugh, Lily Au, Mardge Cohen, Kathryn Anastos, James I Mullins
Biological sex differences affect the course of HIV infection, with untreated women having lower viral loads compared to their male counterparts but, for a given viral load, women have a higher rate of progression to AIDS. However, the vast majority of data on viral evolution, a process that is clearly impacted by host immunity and could be impacted by sex differences, has been derived from men. We conducted an intensive analysis of HIV-1 gag and env-gp120 evolution taken over the first 6-11 years of infection from 8 Women's Interagency HIV Study (WIHS) participants who had not received combination antiretroviral therapy (ART)...
2017: PloS One
https://www.readbyqxmd.com/read/29045401/genome-wide-snps-reveal-the-drivers-of-gene-flow-in-an-urban-population-of-the-asian-tiger-mosquito-aedes-albopictus
#11
Thomas L Schmidt, Gordana Rašić, Dongjing Zhang, Xiaoying Zheng, Zhiyong Xi, Ary A Hoffmann
Aedes albopictus is a highly invasive disease vector with an expanding worldwide distribution. Genetic assays using low to medium resolution markers have found little evidence of spatial genetic structure even at broad geographic scales, suggesting frequent passive movement along human transportation networks. Here we analysed genetic structure of Aedes albopictus collected from 12 sample sites in Guangzhou, China, using thousands of genome-wide single nucleotide polymorphisms (SNPs). We found evidence for passive gene flow, with distance from shipping terminals being the strongest predictor of genetic distance among mosquitoes...
October 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29045400/analysis-of-temporal-transcription-expression-profiles-reveal-links-between-protein-function-and-developmental-stages-of-drosophila-melanogaster
#12
Cen Wan, Jonathan G Lees, Federico Minneci, Christine A Orengo, David T Jones
Accurate gene or protein function prediction is a key challenge in the post-genome era. Most current methods perform well on molecular function prediction, but struggle to provide useful annotations relating to biological process functions due to the limited power of sequence-based features in that functional domain. In this work, we systematically evaluate the predictive power of temporal transcription expression profiles for protein function prediction in Drosophila melanogaster. Our results show significantly better performance on predicting protein function when transcription expression profile-based features are integrated with sequence-derived features, compared with the sequence-derived features alone...
October 18, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/29044988/age-associated-microrna-expression-in-human-peripheral-blood-is-associated-with-all-cause-mortality-and-age-related-traits
#13
Tianxiao Huan, George Chen, Chunyu Liu, Anindya Bhattacharya, Jian Rong, Brian H Chen, Sudha Seshadri, Kahraman Tanriverdi, Jane E Freedman, Martin G Larson, Joanne M Murabito, Daniel Levy
Recent studies provide evidence of correlations of DNA methylation and expression of protein-coding genes with human aging. The relations of microRNA expression with age and age-related clinical outcomes have not been characterized thoroughly. We explored associations of age with whole-blood microRNA expression in 5221 adults and identified 127 microRNAs that were differentially expressed by age at P < 3.3 × 10(-4) (Bonferroni-corrected). Most microRNAs were underexpressed in older individuals. Integrative analysis of microRNA and mRNA expression revealed changes in age-associated mRNA expression possibly driven by age-associated microRNAs in pathways that involve RNA processing, translation, and immune function...
October 17, 2017: Aging Cell
https://www.readbyqxmd.com/read/29044823/the-many-characters-of-visual-alpha-oscillations
#14
Michael S Clayton, Nick Yeung, Roi Cohen Kadosh
A central feature of human brain activity is the alpha rhythm: a 7 - 13 Hz oscillation observed most notably over occipitoparietal brain regions during periods of eyes-closed rest. Alpha oscillations covary with changes in visual processing, and have been associated with a broad range of neurocognitive functions. In this article, we review these associations and suggest that alpha oscillations can be thought to exhibit at least five distinct 'characters': those of the inhibitor, perceiver, predictor, communicator, and stabiliser...
October 17, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29044800/anatomical-variations-of-the-frontal-sinus-and-its-relationship-with-the-orbital-cavity
#15
Nikola Štoković, Vladimir Trkulja, Ivana Čuković-Bagić, Tomislav Lauc, Lovorka Grgurević
INTRODUCTION: The anatomy of the frontal sinus is highly variable and its variations affect the occurrence/course of pathological processes. We investigated its size and relationship to the orbit, searching for patterns that would allow it to be classified anatomically. MATERIAL AND METHODS: Cone beam computed tomography was applied to 91 skulls (age range 21-86 years) to determine sinus height, width, length, and length of contact with the orbit in the coronal and sagittal planes...
October 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29044779/exocrine-pancreas-function-decreases-during-the-progression-of-the-beta-cell-damaging-process-in-young-prediabetic-children
#16
Anita Kondrashova, Noora Nurminen, Jussi Lehtonen, Marja Hyöty, Jorma Toppari, Jorma Ilonen, Riitta Veijola, Mikael Knip, Heikki Hyöty
OBJECTIVE: The function of the exocrine pancreas is decreased in patients with type 1 diabetes but it is not known when this defect develops. The current study set out to determine whether the reduced exocrine function becomes manifest after the initiation of islet autoimmunity. METHODS: The study was nested in the prospective Type 1 Diabetes Prediction and Prevention study where children with human leukocyte antigen (HLA)-conferred susceptibility are observed from birth...
October 17, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/29044773/integrated-analysis-of-microrna-and-mrna-expression-profiles-in-the-rat-spinal-cord-under-inflammatory-pain-conditions
#17
Chien Cheng Liu, Jiin Tsuey Cheng, Tien Yui Li, Ping Heng Tan
Recent studies using microarray-based approaches have demonstrated that microRNAs (miRNAs) are involved in pain processing pathways. However, a significant proportion of computational predictions of miRNA targets are false-positive interactions. To increase the chance of identifying biologically relevant targets, we performed an integrated analysis of both miRNA and mRNA expression profiles in the rat spinal cord during complete Freund's adjuvant (CFA)-induced inflammatory pain. We generated miRNA and mRNA arrays from the same corresponding samples on Days 5 and 14 after CFA injection...
October 17, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29044607/compassion-focused-therapy-exploring-the-effectiveness-with-a-transdiagnostic-group-and-potential-processes-of-change
#18
Jennifer Cuppage, Katie Baird, Jennifer Gibson, Richard Booth, David Hevey
OBJECTIVES: This study aimed to examine the effectiveness of a compassion focused therapy (CFT) group with a transdiagnostic population, as compared to treatment as usual (TAU). A secondary aim was to explore the potential processes of change within the treatment. DESIGN: A non-randomized control trial was used. METHOD: Fifty-eight participants who engaged in group CFT were compared to 29 participants receiving TAU. Group CFT consisted of 14 sessions twice weekly for 5 weeks and once weekly for 4 weeks...
October 17, 2017: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/29044559/discovery-and-characterization-of-novel-trans-spliced-products-of-human-polyoma-jc-virus-late-transcripts-from-pml-patients
#19
A Sami Saribas, Julia DeVoto, Akhil Golla, Hassen S Wollebo, Martyn K White, Mahmut Safak
Although the human neurotropic polyomavirus, JC virus (JCV), was isolated almost a half century ago, understanding the molecular mechanisms governing its biology remains highly elusive. JCV infects oligodendrocytes and astrocytes in the central nervous system (CNS) and causes a fatal brain disease known as progressive multifocal leukoencephalopathy (PML) in immunocompromised individuals including AIDS. It has a small circular DNA genome (∼ 5 kb) and generates two primary transcripts from its early and late coding regions, producing several predicted alternatively spliced products mainly by cis-splicing...
October 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29044213/prediction-of-deterministic-all-optical-switching-of-ferromagnetic-thin-film-by-ultrafast-optothermal-and-optomagnetic-couplings
#20
Zhidong Du, Chen Chen, Feng Cheng, Yongmin Liu, Liang Pan
All-optical switching (AOS) of magnetization induced by ultrafast laser pulses is fundamentally interesting and promises unprecedented speed for magnetic data storage that is three orders of magnitudes faster than the current techniques. For ferrimagnetic material, the AOS is attributed to magnetic circular dichroism and angular momentum transfer between sublattices. Recently, ferromagnetic material is demonstrated in AOS under multiple pulses. Since the magnetic field needed to flip the ferromagnetic magnetization within femtosecond timescale is unphysically high, some theories hypothesized that there exists a prolonged magnetic field beyond the pulse duration in the switching process...
October 18, 2017: Scientific Reports
keyword
keyword
81182
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"