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https://www.readbyqxmd.com/read/28711114/the-effects-of-training-contingency-awareness-during-attention-bias-modification-on-learning-and-stress-reactivity
#1
Amit Lazarov, Rany Abend, Shiran Seidner, Daniel S Pine, Yair Bar-Haim
Current attention bias modification (ABM) procedures are designed to implicitly train attention away from threatening stimuli with the hope of reducing stress reactivity and anxiety symptoms. However, the mechanisms underlying effective ABM delivery are not well understood, with awareness of the training contingency suggested as one possible factor contributing to ABM efficacy. Here, 45 high-anxious participants were trained to divert attention away from threat in two ABM sessions. They were randomly assigned to one of three training protocols: an implicit protocol, comprising two standard implicit ABM training sessions; an explicit protocol, comprising two sessions with explicit instruction as to the attention training contingency; and an implicit-explicit protocol, in which participants were not informed of the training contingency in the first ABM session and informed of it at the start of the second session...
September 2017: Behavior Therapy
https://www.readbyqxmd.com/read/28701050/validation-performance-comparison-for-finite-element-models-of-the-human-brain
#2
Logan E Miller, Jillian E Urban, Joel D Stitzel
The objective of this study was to compare the performance of six validated brain finite element (FE) models to localized brain motion validation data in five experimental configurations. Model performance was measured using the objective metric CORA (CORrelation and Analysis), where higher ratings represent better correlation. The KTH model achieved the highest average CORA rating, and the ABM received the highest average rating among models robustly validated against five cadaver impacts in three directions...
July 12, 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28690682/autologous-bone-marrow-derived-mononuclear-cells-transplantation-in-type-2-diabetes-mellitus-effect-on-%C3%AE-cell-function-and-insulin-sensitivity
#3
Shobhit Bhansali, Pinaki Dutta, Mukesh Kumar Yadav, Ashish Jain, Sunder Mudaliar, Meredith Hawkins, Anura V Kurpad, Deepak Pahwa, Ashok Kumar Yadav, Ratti Ram Sharma, Vivekanand Jha, Neelam Marwaha, Shipra Bhansali, Anil Bhansali
BACKGROUND: Insulin resistance and insulin deficiency are the cardinal defects in the pathogenesis of type 2 diabetes mellitus (T2DM). Despite the plethora of anti-diabetic medications, drugs specifically targeting the β-cells are still desired. Stem cell therapy has emerged as a novel therapeutics strategy to target β-cells; however, their mechanism of action has not been well defined. This study aims to examine the efficacy and safety of autologous bone marrow-derived mononuclear cells (ABM-MNCs) transplantation in T2DM, and explores the mechanistic insights into stem cells action through metabolic studies...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/28679174/invited-commentary-causal-inference-across-space-and-time-quixotic-quest-worthy-goal-or-both
#4
Jessie K Edwards, Catherine R Lesko, Alexander P Keil
The g-formula and agent-based models (ABMs) are 2 approaches used to estimate causal effects. In the current issue of the Journal, Murray et al. (Am J Epidemiol. 2017;000(0):000-000) compare the performance of the g-formula and ABMs to estimate causal effects in 3 target populations. In their thoughtful paper, the authors outline several reasons that a causal effect estimated using an ABM may be biased when parameterized from at least 1 source external to the target population. The authors have addressed an important issue in epidemiology: Often causal effect estimates are needed to inform public health decisions in settings without complete data...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28673036/invited-commentary-agent-based-models-bias-in-the-face-of-discovery
#5
Katherine M Keyes, Melissa Tracy, Stephen J Mooney, Aaron Shev, Magdalena Cerdá
Agent-based models (ABMs) have grown in popularity in epidemiologic applications, but the assumptions necessary for valid inference have only partially been articulated. In this issue, Murray et al. (Am J Epidemiol. 2017;000(0):000-000) provided a much-needed analysis of the consequence of some of these assumptions, comparing analysis using an ABM to a similar analysis using the parametric g-formula. In particular, their work focused on the biases that can arise in ABMs that use parameters drawn from distinct populations whose causal structures and baseline outcome risks differ...
June 30, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28645858/vascular-adaptation-pattern-formation-and-cross-validation-between-an-agent-based-model-and-a-dynamical-system
#6
Marc Garbey, Stefano Casarin, Scott A Berceli
Myocardial infarction is the global leading cause of mortality (Go et al., 2014). Coronary artery occlusion is its main etiology and it is commonly treated by Coronary Artery Bypass Graft (CABG) surgery (Wilson et al, 2007). The long-term outcome remains unsatisfactory (Benedetto, 2016) as the graft faces the phenomenon of restenosis during the post-surgery, which consists of re-occlusion of the lumen and usually requires secondary intervention even within one year after the initial surgery (Harskamp, 2013)...
June 21, 2017: Journal of Theoretical Biology
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
#7
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/28595895/understanding-the-dissemination-of-appointment-based-synchronization-models-using-the-cfir-framework
#8
Julie Patterson, David Holdford
BACKGROUND: The appointment based model (ABM) is a innovative model of pharmacy practice that combines medication synchronization with scheduled monthly appointments to improve patient medication adherence and convenience. It is being implemented in many pharmacies across the United States. OBJECTIVE: The purpose of this article is to use the Consolidated Framework for Implementation Research (CFIR) to discuss the barriers and facilitators of ABM implementation in community pharmacies while identifying priorities for additional implementation research...
June 1, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28593562/assessing-the-impacts-of-the-changes-in-farming-systems-on-food-security-and-environmental-sustainability-of-a-chinese-rural-region-under-different-policy-scenarios-an-agent-based-model
#9
Chengcheng Yuan, Liming Liu, Xiaoxing Qi, Yonghu Fu, Jinwei Ye
Since China has undergone a series of economic reforms and implemented opening up policies, its farming systems have significantly changed and have dramatically influenced the society, economy, and environment of China. To assess the comprehensive impacts of these changes on food security and environmental sustainability, and establish effective and environment-friendly subsidy policies, this research constructed an agent-based model (ABM). Daligang Town, which is located in the two-season rice region of Southern China, was selected as the case study site...
July 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28585809/bsim-2-0-an-advanced-agent-based-cell-simulator
#10
Antoni Matyjaszkiewicz, Gianfranco Fiore, Fabio Annunziata, Claire S Grierson, Nigel J Savery, Lucia Marucci, Mario di Bernardo
Agent-based models (ABMs) provide a number of advantages relative to traditional continuum modeling approaches, permitting incorporation of great detail and realism into simulations, allowing in silico tracking of single-cell behaviors and correlation of these with emergent effects at the macroscopic level. In this study we present BSim 2.0, a radically new version of BSim, a computational ABM framework for modeling dynamics of bacteria in typical experimental environments including microfluidic chemostats...
June 23, 2017: ACS Synthetic Biology
https://www.readbyqxmd.com/read/28577533/an-agent-based-model-simulation-of-influenza-interactions-at-the-host-level-insight-into-the-influenza-related-burden-of-pneumococcal-infections
#11
Hélène Arduin, Matthieu Domenech de Cellès, Didier Guillemot, Laurence Watier, Lulla Opatowski
BACKGROUND: Host-level influenza virus-respiratory pathogen interactions are often reported. Although the exact biological mechanisms involved remain unelucidated, secondary bacterial infections are known to account for a large part of the influenza-associated burden, during seasonal and pandemic outbreaks. Those interactions probably impact the microorganisms' transmission dynamics and the influenza public health toll. Mathematical models have been widely used to examine influenza epidemics and the public health impact of control measures...
June 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28542193/an-agent-based-model-of-leukocyte-transendothelial-migration-during-atherogenesis
#12
Rita Bhui, Heather N Hayenga
A vast amount of work has been dedicated to the effects of hemodynamics and cytokines on leukocyte adhesion and trans-endothelial migration (TEM) and subsequent accumulation of leukocyte-derived foam cells in the artery wall. However, a comprehensive mechanobiological model to capture these spatiotemporal events and predict the growth and remodeling of an atherosclerotic artery is still lacking. Here, we present a multiscale model of leukocyte TEM and plaque evolution in the left anterior descending (LAD) coronary artery...
May 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28542182/modelling-the-transmission-and-control-strategies-of-varicella-among-school-children-in-shenzhen-china
#13
Xiujuan Tang, Shi Zhao, Alice P Y Chiu, Hanwu Ma, Xu Xie, Shujiang Mei, Dongfeng Kong, Yanmin Qin, Zhigao Chen, Xin Wang, Daihai He
OBJECTIVES: Varicella (chickenpox) is a highly transmissible childhood disease. Between 2010 and 2015, it displayed two epidemic waves annually among school populations in Shenzhen, China. However, their transmission dynamics remain unclear and there is no school-based vaccination programme in Shenzhen to-date. In this study, we developed a mathematical model to compare a school-based vaccination intervention scenario with a baseline (i.e. no intervention) scenario. METHODS: Data on varicella reported cases were downloaded from the Infectious Disease Reporting Information Management System...
2017: PloS One
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
#14
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/28528206/feasibility-of-atlas-based-active-bone-marrow-sparing-intensity-modulated-radiation-therapy-for-cervical-cancer
#15
Nan Li, Sonal S Noticewala, Casey W Williamson, Hanjie Shen, Igor Sirak, Rafal Tarnawski, Umesh Mahantshetty, Carl K Hoh, Kevin L Moore, Loren K Mell
BACKGROUND: To test the hypothesis that atlas-based active bone marrow (ABM)-sparing intensity modulated radiation therapy (IMRT) yields similar dosimetric results compared to custom ABM-sparing IMRT for cervical cancer patients. METHODS: We sampled 62 cervical cancer patients with pre-treatment FDG-PET/CT in training (n=32) or test (n=30) sets. ABM was defined as the subvolume of the pelvic bone marrow (PBM) with standardized uptake value (SUV) above the mean on the average FDG-PET image (ABMAtlas) vs...
May 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28523054/acute-bacterial-meningitis-in-children-presenting-to-the-children-s-hospital-lahore-before-and-after-pneumococcal-vaccine-in-pakistan-national-immunization-program-a-comparison
#16
Attia Bari, Fatima Zeeshan, Aizza Zafar, Hasan Ejaz, Uzma Jabeen, Ahsan Waheed Rathore
OBJECTIVE: To describe bacteriological profile, morbidity and mortality of acute bacterial meningitis (ABM) in children and to compare these parameters before and after the introduction of Pneumococcal vaccine in Pakistan National Immunization Program. METHODS: The present descriptive study was conducted at the Department of Paediatric Medicine of The Children's Hospital Lahore from January 2012 to December 2015. A total of 503 children one month to five years of age admitted with diagnosis of meningitis were included...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28488805/breastfeeding-considerations-for-mothers-of-infants-with-neonatal-abstinence-syndrome
#17
REVIEW
Amy P Holmes, Holly N Schmidlin, Eliana N Kurzum
Breastfeeding offers many benefits to both mother and baby. Breastfeeding is generally recommended for mothers of infants with neonatal abstinence syndrome (NAS) unless some associated risk outweighs the benefits. Evidence indicates that infants with NAS who receive human milk require less pharmacologic treatment and have shorter hospital lengths of stay. Perhaps the greatest barrier to breastfeeding for women with opioid dependence is the inaccurate and inconsistent information they receive from different sources, including health care professionals...
May 10, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28485006/the-impact-of-appointment-based-medication-synchronization-on-medication-taking-behaviour-and-health-outcomes-a-systematic-review
#18
REVIEW
E Nguyen, D M Sobieraj
WHAT IS KNOWN AND OBJECTIVE: Proactive synchronization of medication refills through an appointment-based model (ABM) is a community pharmacy-based intervention targeting adherence to medications. We aimed to systematically review evidence on the impact of the ABM on medication taking behaviour, health resource utilization, clinical outcomes and the preferences of patients and providers. METHODS: We conducted a systematic literature search of MEDLINE and Scopus from database inception through 6 February 2017...
May 8, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28453890/less-is-more-patient-level-meta-analysis-reveals-paradoxical-dose-response-effects-of-a-computer-based-social-anxiety-intervention-targeting-attentional-bias
#19
REVIEW
Rebecca B Price, Jennie M Kuckertz, Nader Amir, Yair Bar-Haim, Per Carlbring, Meredith L Wallace
BACKGROUND: The past decade of research has seen considerable interest in computer-based approaches designed to directly target cognitive mechanisms of anxiety, such as attention bias modification (ABM). METHODS: By pooling patient-level datasets from randomized controlled trials of ABM that utilized a dot-probe training procedure, we assessed the impact of training "dose" on relevant outcomes among a pooled sample of 693 socially anxious adults. RESULTS: A paradoxical effect of the number of training trials administered was observed for both posttraining social anxiety symptoms and behavioral attentional bias (AB) toward threat (the target mechanism of ABM)...
April 28, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28421127/using-agent-based-models-to-develop-public-policy-about-food-behaviours-future-directions-and-recommendations
#20
REVIEW
Philippe J Giabbanelli, Rik Crutzen
Most adults are overweight or obese in many western countries. Several population-level interventions on the physical, economical, political, or sociocultural environment have thus attempted to achieve a healthier weight. These interventions have involved different weight-related behaviours, such as food behaviours. Agent-based models (ABMs) have the potential to help policymakers evaluate food behaviour interventions from a systems perspective. However, fully realizing this potential involves a complex procedure starting with obtaining and analyzing data to populate the model and eventually identifying more efficient cross-sectoral policies...
2017: Computational and Mathematical Methods in Medicine
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