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https://www.readbyqxmd.com/read/28441481/best-practices-of-computer-aided-drug-discovery-cadd-lessons-learned-from-the-development-of-a-preclinical-candidate-for-prostate-cancer-with-a-new-mechanism-of-action
#1
Fuqiang Ban, Kush Dalal, Huifang Li, Eric LeBlanc, Paul S Rennie, Artem Cherkasov
Small-molecule drug design is a complex and iterative decision-making process relying on pre-existing knowledge and driven by experimental data. Low molecular weight chemicals represent an attractive therapeutic option as they are readily accessible to organic synthesis and can easily be characterized.1 Their potency, as well as pharmacokinetic and pharmacodynamic properties can be systematically and rationally investigated, and ultimately optimized via expert science behind medicinal chemistry and methods of computer-aided drug design (CADD)...
April 25, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28440276/next-generation-probiotics-the-spectrum-from-probiotics-to-live-biotherapeutics
#2
Paul W O'Toole, Julian R Marchesi, Colin Hill
The leading probiotics currently available to consumers are generally drawn from a narrow range of organisms. Knowledge of the gut microbiota and its constituent actors is changing this paradigm, particularly given the phylogenetic range and relatively unknown characteristics of the organisms under investigation as novel therapeutics. For this reason, and because their development is likely to be more amenable to a pharmaceutical than a food delivery route, these organisms are often operationally referred to as next-generation probiotics, a concept that overlaps with the emerging concept of live biotherapeutic products...
April 25, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28440094/small-group-activities-within-academic-communities-improve-the-connectedness-of-students-and-faculty
#3
Katharina Brandl, Stephen D Schneid, Sunny Smith, Babbi Winegarden, Jess Mandel, Carolyn J Kelly
BACKGROUND: The University of California, San Diego, School of Medicine implemented a curriculum change that included reduction of lectures, incorporation of problem-based learning and other small group activities. Six academic communities were introduced for teaching longitudinal curricular content and organizing extracurricular activities. METHODS: Surveys were collected from 904 first- and second-year medical students over 6 years. Student satisfaction data with their sense of connectedness and community support were collected before and after the implementation of the new curriculum...
April 25, 2017: Medical Teacher
https://www.readbyqxmd.com/read/28439010/cyclops-reveals-human-transcriptional-rhythms-in-health-and-disease
#4
Ron C Anafi, Lauren J Francey, John B Hogenesch, Junhyong Kim
Circadian rhythms modulate many aspects of physiology. Knowledge of the molecular basis of these rhythms has exploded in the last 20 years. However, most of these data are from model organisms, and translation to clinical practice has been limited. Here, we present an approach to identify molecular rhythms in humans from thousands of unordered expression measurements. Our algorithm, cyclic ordering by periodic structure (CYCLOPS), uses evolutionary conservation and machine learning to identify elliptical structure in high-dimensional data...
April 24, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28437663/microbial-communities-associated-with-plants-learning-from-nature-to-apply-it-in-agriculture
#5
REVIEW
Fernando Dini Andreote, Michele de Cássia Pereira E Silva
It is a new consensus that any living organism depends on its partners to strive under environmental conditions along their living period. Plants are also highly dependent on their associated microbes, which can support its development and proper protection under stressors. Along their evolution, plants learned to interact to soil microbiota, extracting their utmost capacity to provide resources for plant development and successful colonization of terrestrial systems, where the great soil biodiversity is keen on properly exert this role...
April 21, 2017: Current Opinion in Microbiology
https://www.readbyqxmd.com/read/28436914/a-time-variant-log-linear-learning-approach-to-the-set-k-cover-problem-in-wireless-sensor-networks
#6
Changhao Sun
Toward the global optimality of the SET K-COVER problem in wireless sensor networks, we view each sensor node as a rational player and propose a time variant log-linear learning algorithm (TVLLA) that relies on local information only. By defining the local utility as the normalized area covered by one node alone, we formulate the problem as a spatial potential game. The resulting optimal Nash equilibria correspond to the optimal partition. Such equilibria are obtained by designing a time varying parameter β that approaches infinity with time...
April 19, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28435745/a-consult-service-to-support-and-promote-community-based-research-tracking-and-evaluating-a-community-based-research-consult-service
#7
Clara M Pelfrey, Katrice D Cain, Mary Ellen Lawless, Earl Pike, Ashwini R Sehgal
PURPOSE: This study describes the design, operation and evaluation of a community-based research (CBR) consult service within the setting of a Clinical and Translational Science Award (CTSA) institution. To our knowledge, there are no published evaluations of a CBR consult service at a CTSA hub. METHODS: A community-based research Consult Service was created to support faculty, health care providers/research coordinators, trainees, community-based organizations and community members...
February 2017: J Clin Transl Sci
https://www.readbyqxmd.com/read/28435104/drosophila-pink1-and-parkin-loss-of-function-mutants-display-a-range-of-non-motor-parkinson-s-disease-phenotypes
#8
Hannah Julienne, Edgar Buhl, David S Leslie, James J L Hodge
Parkinson's disease (PD) is more commonly associated with its motor symptoms and the related degeneration of dopamine (DA) neurons. However, it is becoming increasingly clear that PD patients also display a wide range of non-motor symptoms, including memory deficits and disruptions of their sleep-wake cycles. These have a large impact on their quality of life, and often precede the onset of motor symptoms, but their etiology is poorly understood. The fruit fly Drosophila has already been successfully used to model PD, and has been used extensively to study relevant non-motor behaviours in other contexts, but little attention has yet been paid to modelling non-motor symptoms of PD in this genetically tractable organism...
April 20, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28434591/oxytocin-and-vasopressin-neural-networks-implications-for-social-behavioral-diversity-and-translational-neuroscience
#9
REVIEW
Zachary V Johnson, Larry J Young
Oxytocin- and vasopressin-related systems are present in invertebrate and vertebrate bilaterian animals, including humans, and exhibit conserved neuroanatomical and functional properties. In vertebrates, these systems innervate conserved neural networks that regulate social learning and behavior, including conspecific recognition, social attachment, and parental behavior. Individual and species-level variation in central organization of oxytocin and vasopressin systems has been linked to individual and species variation in social learning and behavior...
May 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28432767/categorical-learning-revealed-in-activity-pattern-of-left-fusiform-cortex
#10
Jessica E Goold, Ming Meng
The brain is organized such that it encodes and maintains category information about thousands of objects. However, how learning shapes these neural representations of object categories is unknown. The present study focuses on faces, examining whether: (1) Enhanced categorical discrimination or (2) Feature analysis enhances face/non-face categorization in the brain. Stimuli ranged from non-faces to faces with two-toned Mooney images used for testing and gray-scale images used for training. The stimulus set was specifically chosen because it has a true categorical boundary between faces and non-faces but the stimuli surrounding that boundary have very similar features, making the boundary harder to learn...
April 22, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28432592/perceptual-learning-with-tactile-stimuli-in-rodents-shaping-the-somatosensory-system
#11
REVIEW
Nicole Pacchiarini, Kevin Fox, R C Honey
The animal kingdom contains species with a wide variety of sensory systems that have been selected to function in different environmental niches, but that are also subject to modification by experience during an organism's lifetime. The modification of such systems by experience is often called perceptual learning. In rodents, the classic example of perceptual learning is the observation that simple preexposure to two visual stimuli facilitates a subsequent (reinforced) discrimination between them. However, until recently very little behavioral research had investigated perceptual learning with tactile stimuli in rodents, in marked contrast to the wealth of information about plasticity in the rodent somatosensory system...
April 21, 2017: Learning & Behavior
https://www.readbyqxmd.com/read/28431204/factors-that-affect-outcomes-of-prolapse-repair-using-single-incision-vaginal-mesh-procedures
#12
Hsiao-Yun Hsieh, Ching-Pei Tsai, Chih-Ku Liu, Pao-Sheng Shen, Yao-Ching Hung, Man-Jung Hung
AIMS: Single-incision vaginal mesh (SIVM) procedures for pelvic organ prolapse (POP) differed in mesh fabrication and implantation that may affect treatment outcomes. We aim to evaluate and compare the safety and effectiveness of two SIVM procedures, and explore factors that may have associations with surgical effectiveness. METHODS: Our data of using two SIVM procedures for a total (anterior and posterior) vaginal mesh repair were studied. Patients who had ≧stage 2 POP and underwent either Elevate (n = 85) using anchored, lightweight meshes or Prosima procedures (n = 95) using non-anchored, original meshes were assessed...
April 21, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28430628/critical-role-of-matrix-metallopeptidase-9-in-postoperative-cognitive-dysfunction-and-age-dependent-cognitive-decline
#13
Jiangjiang Bi, Weiran Shan, Ailin Luo, Zhiyi Zuo
BACKGROUND: Postoperative cognitive dysfunction (POCD) is a significant clinical syndrome. Neuroinflammation is an important pathological process for POCD. However, it is not clear how systemic inflammation induced by surgery on peripheral tissues or organs is transmitted into the brain. We determined whether matrix metallopeptidase 9 (MMP9), a protein that can increase blood-brain barrier permeability, is critical in this transmission. The role of MMP9 in age-dependent cognitive decline was also determined...
February 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430140/-eat-as-if-you-could-save-the-planet-and-win-sustainability-integration-into-nutrition-for-exercise-and-sport
#14
Nanna Meyer, Alba Reguant-Closa
Today's industrial food production contributes significantly to environmental degradation. Meat production accounts for the largest impact, including greenhouse gas emissions, land and water use. While food production and consumption are important aspects when addressing climate change, this article focuses predominantly on dietary change that promotes both health for planet and people with focus on athletes. Healthy, sustainable eating recommendations begin to appear in various governmental guidelines. However, there remains resistance to the suggested reductions in meat consumption...
April 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28430027/a-comparison-of-the-performance-of-2-5-to-3-5-year-old-children-without-disabilities-using-animated-and-cursor-based-scanning-in-a-contextual-scene
#15
John W McCarthy, Jamie B Boster
Although recent evidence suggests learning demands for children can be reduced by organizing augmentative and alternative communication (AAC) displays in contextual scenes, there is little evidence on how such scenes could be made accessible for children who cannot use direct selection. Using a line drawn scene of a living room, a traditional traveling cursor (a green outline of objects within the scene) was compared with sequential animation-logically matching the function of items in the scene (e.g., hands of a clock moving, a lamp turning on and off, etc...
April 21, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28428766/episodic-specificity-in-acquiring-thematic-knowledge-of-novel-words-from-descriptive-episodes
#16
Meichao Zhang, Shuang Chen, Lin Wang, Xiaohong Yang, Yufang Yang
The current study examined whether thematic relations of the novel words could be acquired via descriptive episodes, and if yes, whether it could be generalized to thematically related words in a different scenario. In Experiment 1, a lexical decision task was used where the novel words served as primes for target words in four conditions: (1) corresponding concepts of the novel words, (2) thematically related words in the same episodes as that in learning condition, (3) thematically related words in different episodes, or (4) unrelated words served as targets...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28427405/ceiling-effect-in-emr-system-assimilation-a-multiple-case-study-in-primary-care-family-practices
#17
Marie-Claude Trudel, Josianne Marsan, Guy Paré, Louis Raymond, Ana Ortiz de Guinea, Éric Maillet, Thomas Micheneau
BACKGROUND: There has been indisputable growth in adoption of electronic medical record (EMR) systems in the recent years. However, physicians' progress in using these systems has stagnated when measured with maturity scales. While this so-called ceiling effect has been observed and its consequences described in previous studies, there is a paucity of research on the elements that could explain such an outcome. We first suggest that in the context of EMR systems we are in presence of a "tiered ceiling effect" and then we show why such phenomenon occurs...
April 20, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28427402/fluorescence-cholangiography-during-laparoscopic-cholecystectomy-in-a-patient-with-situs-inversus-totalis-a-case-report-and-literature-review
#18
Narongsak Rungsakulkij, Pongsatorn Tangtawee
BACKGROUND: Situs inversus totalis is a rare autosomal disorder in which the patient's affected visceral organs are a perfect mirror image of their normal positions. Surgery in these patients is technically challenging. Minimally invasive surgery such as laparoscopic cholecystectomy is the standard treatment for symptomatic cholelithiasis, but it can be difficult to perform. Laparoscopic cholecystectomy in patients with situs inversus totalis may be even more technically challenging. Fluorescence cholangiography is a new innovation in the field of navigation surgery...
April 20, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28426520/nursing-practice-research-and-education-in-the-west-the-best-is-yet-to-come
#19
Heather M Young, Susan Bakewell-Sachs, Linda Sarna
PURPOSE: This paper celebrates the 60th anniversary of the Western Institute of Nursing, the nursing organization representing 13 states in the Western United States, and envisions a preferred future for nursing practice, research, and education. BACKGROUND: Three landmark calls to action contribute to transforming nursing and healthcare: the Patient Protection and Affordable Care Act of 2010; the Institute of Medicine report Future of Nursing: Leading Change, Advancing Health; and the report Advancing Healthcare Transformation: A New Era for Academic Nursing...
April 20, 2017: Nursing Research
https://www.readbyqxmd.com/read/28426354/-it-goes-on-everywhere-injection-drug-use-in-canadian-federal-prisons
#20
Emily van der Meulen
BACKGROUND: International and Canadian research on in-prison injection drug use has documented the frequency of its occurrence as well as some of the resulting consequences such as increased prevalence of HIV and hepatitis C virus. Access to prison-based harm reduction programing is thus important. OBJECTIVES: The aim of this study was to learn from former prisoner experiences and insights on in-prison injection drug use in order to advance and improve access to harm reduction options, in particular prison-based needle and syringe programs (PNSPs)...
June 7, 2017: Substance Use & Misuse
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