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Bias modification

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https://www.readbyqxmd.com/read/28630973/consort-statement-for-randomized-trials-of-nonpharmacologic-treatments-a-2017-update-and-a-consort-extension-for-nonpharmacologic-trial-abstracts
#1
Isabelle Boutron, Douglas G Altman, David Moher, Kenneth F Schulz, Philippe Ravaud
Incomplete and inadequate reporting is an avoidable waste that reduces the usefulness of research. The CONSORT (Consolidated Standards of Reporting Trials) Statement is an evidence-based reporting guideline that aims to improve research transparency and reduce waste. In 2008, the CONSORT Group developed an extension to the original statement that addressed methodological issues specific to trials of nonpharmacologic treatments (NPTs), such as surgery, rehabilitation, or psychotherapy. This article describes an update of that extension and presents an extension for reporting abstracts of NPT trials...
June 20, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28630808/management-of-acute-uncomplicated-diverticulitis-may-exclude-antibiotic-therapy
#2
REVIEW
Jonathan Mayl, Mikhail Marchenko, Emily Frierson
Diverticulitis is a common ailment that is prevalent in the developed world. As such, the management of diverticulitis places a substantial economic burden on healthcare. Research is ongoing to further elucidate both the pathogenesis of the disease, as well as ways to reduce associated expenditures. One of these emerging areas of research calls into question the use of antibiotics during treatment of acute uncomplicated diverticulitis. Current guidelines are largely based on expert opinion, with little evidence supporting the standard practice of antibiotic therapy...
May 15, 2017: Curēus
https://www.readbyqxmd.com/read/28625108/memory-dynamics-under-stress
#3
Conny W E M Quaedflieg, Lars Schwabe
Stressful events have a major impact on memory. They modulate memory formation in a time-dependent manner, closely linked to the temporal profile of action of major stress mediators, in particular catecholamines and glucocorticoids. Shortly after stressor onset, rapidly acting catecholamines and fast, non-genomic glucocorticoid actions direct cognitive resources to the processing and consolidation of the ongoing threat. In parallel, control of memory is biased towards rather rigid systems, promoting habitual forms of memory allowing efficient processing under stress, at the expense of "cognitive" systems supporting memory flexibility and specificity...
June 19, 2017: Memory
https://www.readbyqxmd.com/read/28615666/a-sex-specific-reconstitution-bias-in-the-competitive-cd45-1-cd45-2-congenic-bone-marrow-transplant-model
#4
Salema Jafri, Stephen D Moore, Nicholas W Morrell, Mark L Ormiston
Allelic variants of the pan-haematopoietic cell marker CD45, identified as CD45.1 and CD45.2, have been established as a marker system to track haematopoietic cells following congenic mouse bone marrow transplants. Despite the frequent use of this model for studying the impact of genetic modifications on relative differentiation potential, it is now evident that a bias exists in CD45.1 versus CD45.2 cell reconstitution. While this bias has been demonstrated by reduced reconstitution potential in B cells of CD45...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28612504/effect-of-attention-bias-modification-on-brain-function-and-anxiety-in-patients-with-irritable-bowel-syndrome-a-preliminary-electroencephalogram-and-psycho-behavioral-study
#5
J Tayama, T Saigo, S Ogawa, A Takeoka, T Hamaguchi, M Hayashida, S Fukudo, S Shirabe
BACKGROUND: Gastrointestinal symptoms of irritable bowel syndrome (IBS) show a reciprocal relationship with anxiety. In this intervention-based study, we investigated the utility of attention bias modification (ABM) therapy in patients with IBS. We hypothesized that IBS-related electroencephalographic abnormalities would be normalized after ABM therapy. METHODS: Seventeen patients with IBS and 13 healthy subjects completed five ABM intervention sessions over a 2-month period...
June 14, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28605010/carbon-nitrogen-and-oxygen-isotope-fractionation-during-food-cooking-implications-for-the-interpretation-of-the-fossil-human-record
#6
Aurélien Royer, Valérie Daux, François Fourel, Christophe Lécuyer
OBJECTIVES: Stable isotope data provide insight into the reconstruction of ancient human diet. However, cooking may alter the original stable isotope compositions of food due to losses and modifications of biochemical and water components. METHODS: To address this issue, carbon, nitrogen and oxygen isotope ratios were measured on meat aliquots sampled from various animals such as pork, beef, duck and chicken, and also from the flesh of fishes such as salmon, European seabass, European pilchard, sole, gilt-head bream, and tuna...
June 12, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28603756/cognitive-mechanisms-and-therapeutic-targets-of-addiction
#7
Marc L Copersino
Fundamental to cognitive models of addiction is the gradual strengthening of automatic, urge-related responding that develops in tandem with the diminution of self-control-related processes aimed at inhibiting impulses. Recent conceptualizations of addiction also include a third set of cognitive processes related to self-awareness and superordinate regulation of self-control and other higher brain function. This review describes new human research evidence and theoretical developments related to the multicausal strengthening of urge-related responding and failure of self-control in addiction, and the etiology of disrupted self-awareness and rational decision-making associated with continued substance use...
February 2017: Current Opinion in Behavioral Sciences
https://www.readbyqxmd.com/read/28601693/causal-role-for-inverse-reasoning-on-obsessive-compulsive-symptoms-preliminary-evidence-from-a-cognitive-bias-modification-for-interpretation-bias-study
#8
Shiu F Wong, Jessica R Grisham
BACKGROUND AND OBJECTIVES: The inference-based approach (IBA) is a cognitive account of the genesis and maintenance of obsessive-compulsive disorder (OCD). According to the IBA, individuals with OCD are prone to using inverse reasoning, in which hypothetical causes form the basis of conclusions about reality. Several studies have provided preliminary support for an association between features of the IBA and OCD symptoms. However, there are currently no studies that have investigated the proposed causal relationship of inverse reasoning in OCD...
June 3, 2017: Journal of Behavior Therapy and Experimental Psychiatry
https://www.readbyqxmd.com/read/28586432/locus-specific-chip-combined-with-ngs-analysis-reveals-genomic-regulatory-regions-that-physically-interact-with-the-pax5-promoter-in-a-chicken-b-cell-line
#9
Toshitsugu Fujita, Fusako Kitaura, Miyuki Yuno, Yutaka Suzuki, Sumio Sugano, Hodaka Fujii
Chromosomal interactions regulate genome functions, such as transcription, via dynamic chromosomal organization in the nucleus. In this study, we attempted to identify genomic regions that physically bind to the promoter region of the Pax5 gene, which encodes a master regulator for B cell lineage commitment, in a chicken B cell line, DT40, with the goal of obtaining mechanistic insight into transcriptional regulation through chromosomal interaction. We found that the Pax5 promoter bound to multiple genomic regions using locus-specific chromatin immunoprecipitation (locus-specific ChIP), a method for locus-specific isolation of target genomic regions, in combination with next-generation sequencing (NGS)...
June 6, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28583518/cystatin-c-based-equation-for-predicting-the-glomerular-filtration-rate-in-kidney-transplant-recipients
#10
Y Yang, K Y Kim, I Hwang, T Yim, W Do, M J Kim, S Lee, H-Y Jung, J-Y Choi, S-H Park, Y-L Kim, C-D Kim, J-H Cho
BACKGROUND: Precise monitoring of the glomerular filtration rate (GFR) is needed to estimate the allograft function in kidney transplant recipients (KTRs). The GFR is widely estimated with the use of formulas based on serum cystatin C (SCys) and serum creatinine (SCr) levels. We compared the efficacy of SCys-based equations with that of SCr-based equations to predict the allograft function. METHODS: We calculated the Modification of Diet in Renal Disease (MDRD), Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI Cr), CKD-EPI creatinine-cystatin C (CKD-EPI Cr/Cys), and CKD-EPI cystatin C (CKD-EP ICys) equations in 70 KTRs...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28577308/empirical-antibiotics-targeting-gram-positive-bacteria-for-the-treatment-of-febrile-neutropenic-patients-with-cancer
#11
REVIEW
Ofrat Beyar-Katz, Yaakov Dickstein, Sara Borok, Liat Vidal, Leonard Leibovici, Mical Paul
BACKGROUND: The pattern of infections among neutropenic patients with cancer has shifted in the last decades to a predominance of gram-positive infections. Some of these gram-positive bacteria are increasingly resistant to beta-lactams and necessitate specific antibiotic treatment. OBJECTIVES: To assess the effectiveness of empirical anti-gram-positive (antiGP) antibiotic treatment for febrile neutropenic patients with cancer in terms of mortality and treatment failure...
June 3, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28575378/long-term-outcomes-of-different-ablation-strategies-for-ventricular-tachycardia-in-patients-with-structural-heart-disease-systematic-review-and-meta-analysis
#12
David F Briceño, Jorge Romero, Pedro A Villablanca, Alejandra Londoño, Juan C Diaz, Ilir Maraj, Syeda Atiqa Batul, Nidhi Madan, Jignesh Patel, Anand Jagannath, Sanghamitra Mohanty, Prasant Mohanty, Carola Gianni, Domenico Della Rocca, Ahlam Sabri, Soo G Kim, Andrea Natale, Luigi Di Biase
Aims: To compare the long-term outcomes of standard ablation of stable ventricular tachycardia (VT) vs. substrate modification, and of complete vs. incomplete substrate modification in patients with structural heart disease (SHD) presenting with VT. Methods and results: An electronic search was performed using major databases. The main outcomes were a composite of long-term ventricular arrhythmia (VA) recurrence and all-cause mortality of standard ablation of stable VT vs...
May 26, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28557331/understanding-the-effect-of-surface-chemistry-of-mesoporous-silica-nanorods-on-their-vaccine-adjuvant-potency
#13
Yannan Yang, Manasi Jambhrunkar, Prasanna Lakshmi Abbaraju, Meihua Yu, Min Zhang, Chengzhong Yu
Mesoporous silica nanoparticles are reported as adjuvants in nanovaccines in generating robust antigen-specific immunity. However, the effect of surface chemistry in initiating and modulating the immune response remains largely unexplored. In this study, mesoporous silica nanorods (MSNRs) are modified with NH2 and C18 groups to investigate the influence of surface functional groups (OH, NH2 , and C18 ) on their adjuvant efficacy. It is found that compared to OH and NH2 groups, the hydrophobic C18 modification significantly enhances antigen uptake by antigen presenting cells and endosomal-lysosomal escape in vitro, dendritic cells, and macrophages maturation ex vivo, and elicits secretion of interferon-γ level and antibody response in immunized mice...
May 29, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28554851/executive-function-in-childhood-obesity-promising-intervention-strategies-to-optimize-treatment-outcomes
#14
REVIEW
Jacqueline F Hayes, Dawn M Eichen, Deanna M Barch, Denise E Wilfley
Executive functions (EFs) are hypothesized to play a role in the development and maintenance of obesity due to their role in self-regulatory processes that manage energy-balance behaviors. Children with obesity have well-documented deficits in EF, which may impede effectiveness of current, evidence-based treatments. This review examines top-down EF processes (e.g., inhibitory control, working memory, cognitive flexibility), as well as bottom-up automatic processes that interact with EFs (e.g., attentional bias, delay discounting) and their relation to weight-loss treatment success in children...
May 26, 2017: Appetite
https://www.readbyqxmd.com/read/28549560/sensorimotor-adaptation-of-whole-body-postural-control
#15
Douglas M Shiller, Louis-Nicolas Veilleux, Mikaël Marois, Laurent Ballaz, Martin Lemay
The aim of the present study was to examine the modification of postural symmetry during quiet standing using a sensorimotor adaptation paradigm. A group of neurologically typical adult participants performed a visually guided mediolateral (left-right) weight shifting task requiring precise adjustments in body orientation. During one phase of the task, the visual feedback of center of pressure (COP) was systematically biased toward the left or the right, requiring an adjustment in posture to compensate. COP during quiet standing without visual feedback was examined prior to and immediately following the sensorimotor adaptation procedure, in order to observe whether compensatory adjustments in postural control resulting from the visual-feedback manipulation would transfer to the control of whole-body COP during quiet standing...
May 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/28545477/optimizing-complex-phenotypes-through-model-guided-multiplex-genome-engineering
#16
Gleb Kuznetsov, Daniel B Goodman, Gabriel T Filsinger, Matthieu Landon, Nadin Rohland, John Aach, Marc J Lajoie, George M Church
We present a method for identifying genomic modifications that optimize a complex phenotype through multiplex genome engineering and predictive modeling. We apply our method to identify six single nucleotide mutations that recover 59% of the fitness defect exhibited by the 63-codon E. coli strain C321.∆A. By introducing targeted combinations of changes in multiplex we generate rich genotypic and phenotypic diversity and characterize clones using whole-genome sequencing and doubling time measurements. Regularized multivariate linear regression accurately quantifies individual allelic effects and overcomes bias from hitchhiking mutations and context-dependence of genome editing efficiency that would confound other strategies...
May 25, 2017: Genome Biology
https://www.readbyqxmd.com/read/28543809/practice-patterns-of-dermatologists-in-the-pediatric-contact-dermatitis-registry
#17
Sharon E Jacob, Michael B Lipp, Eric Suh, Alina Goldenberg
BACKGROUND/OBJECTIVES: U.S. adults and children are equally likely to have allergic contact dermatitis. Historically the narrow geographic location of data-reporting providers has quantitatively and qualitatively limited the pediatric contact dermatitis data. The Pediatric Contact Dermatitis Registry was used to evaluate self-identified pediatric patch test providers within the United States with regard to demographic characteristics, geographic location, and practice patterns. METHODS: A wide range of U...
May 23, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28541490/glanet-genomic-loci-annotation-and-enrichment-tool
#18
Burçak Otlu, Can Firtina, Sündüz Keles, Oznur Tastan
Motivation: Genomic studies identify genomic loci representing genetic variations, transcription factor (TF) occupancy, or histone modification through next generation sequencing (NGS) technologies. Interpreting these loci requires evaluating them with known genomic and epigenomic annotations. Results: We present GLANET as a comprehensive annotation and enrichment analysis tool which implements a sampling-based enrichment test that accounts for GC content and/or mappability biases, jointly or separately...
May 24, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28535815/internet-based-attentional-bias-modification-training-as-add-on-to-regular-treatment-in-alcohol-and-cannabis-dependent-outpatients-a-study-protocol-of-a-randomized-control-trial
#19
Janika Heitmann, Madelon E van Hemel-Ruiter, Karin M Vermeulen, Brian D Ostafin, Colin MacLeod, Reinout W Wiers, Laura DeFuentes-Merillas, Martine Fledderus, Wiebren Markus, Peter J de Jong
BACKGROUND: The automatic tendency to attend to and focus on substance-related cues in the environment (attentional bias), has been found to contribute to the persistence of addiction. Attentional bias modification (ABM) interventions might, therefore, contribute to treatment outcome and the reduction of relapse rates. Based on some promising research findings, we designed a study to test the clinical relevance of ABM as an add-on component of regular intervention for alcohol and cannabis patients...
May 23, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28533032/design-and-synthesis-of-an-immobilized-metal-affinity-chromatography-and-metal-oxide-affinity-chromatography-hybrid-material-for-improved-phosphopeptide-enrichment
#20
Da-Song Yang, Xi-Ying Ding, Hong-Ping Min, Bo Li, Meng-Xiang Su, Miao-Miao Niu, Bin Di, Fang Yan
Reversible phosphorylation of proteins is one of the most important post-translational modifications, while the detection of phosphopeptides is difficult due to their low abundance and the signal suppression of nonphosphorylated peptides. Therefore, selective enrichment of phosphopeptides from highly complicated mixtures is vital for MS-based phosphoproteome analysis. Despite various strategies have been developed, there is no single method that is capable of providing full coverage of the whole phosphoproteome...
May 10, 2017: Journal of Chromatography. A
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