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https://www.readbyqxmd.com/read/28214998/optimal-visual-haptic-integration-with-articulated-tools
#1
Chie Takahashi, Simon J Watt
When we feel and see an object, the nervous system integrates visual and haptic information optimally, exploiting the redundancy in multiple signals to estimate properties more precisely than is possible from either signal alone. We examined whether optimal integration is similarly achieved when using articulated tools. Such tools (tongs, pliers, etc) are a defining characteristic of human hand function, but complicate the classical sensory 'correspondence problem' underlying multisensory integration. Optimal integration requires establishing the relationship between signals acquired by different sensors (hand and eye) and, therefore, in fundamentally unrelated units...
February 18, 2017: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
https://www.readbyqxmd.com/read/28214989/exposure-response-analyses-of-blood-pressure-and-heart-rate-changes-for-methylphenidate-in-healthy-adults
#2
Liang Li, Yaning Wang, Ramana S Uppoor, Mehul U Mehta, Tiffany Farchione, Mitchell V Mathis, Hao Zhu
The aim of the study was to evaluate the exposure-response (E-R) relationships of blood pressure (BP) and heart rate (HR) changes in healthy adults taking methylphenidate (MPH). Intensive time profiles of BP and HR from healthy adults in placebo and MPH treatment arms of seven clinical trials from the FDA internal database were utilized for this analysis. The analysis model contains a circadian component for placebo effect and an E-R component to describe drug effect. Internal validation was performed using goodness-of-fit plots and visual predictive check...
February 18, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28214974/interaction-of-scots-pine-defensin-with-model-membrane-by-coarse-grained-molecular-dynamics
#3
Elena Ermakova, Yuriy Zuev
Plant defensins are a part of the innate immune system of plants that acts against a broad range of pathogens. Many plant defensins, including pine defensins, show strong antifungal activity that is associated with their ability to penetrate into the fungal cell membrane. However, the exact molecular mechanism of their action remains poorly defined. To obtain insight into the mechanism of protein-membrane interaction, we applied a coarse-grained molecular dynamics simulation to study the interaction of pine defensin with two model membranes: the first consisted of zwitterion-neutral POPC molecules and the second was composed of combined anionic POPG and POPC...
February 18, 2017: Journal of Membrane Biology
https://www.readbyqxmd.com/read/28214908/-integrated-patient-centered-care-in-community-health-centers-in-italy-performance-evaluation
#4
Piero Salvadori
In Italy, a "Casa della Salute" (or "House of Health"), translated for the purposes of this article as Community Health Center (CHC), is a public center (of the national public healthcare system), where one can find allocated all primary community healthcare services centered on prevention, treatment and rehabilitation of the citizen in the same physical space, including general practitioner offices, outpatient specialist clinics, and social services. CHCs assure patient-centered primary care services and are the ideal place for applying the Chronic Care Model...
November 2016: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28214906/-evaluating-the-quality-of-care-in-nursing-homes-comparison-of-three-international-models
#5
Alessandro Rubino, Fabrizio Leigheb, Carmela Rinaldi, Angelo Di Dio, Sanita Knesse, Chiara Donnarumma, Massimiliano Panella
The aim of this observational descriptive study was to identify the main international models evaluating the quality of nursing homes for non self-sufficient elderly persons, and to apply them in the Italian health system. Firstly, a bibliographic search of institutional websites and Pubmed-Medline was performed to identify the main international models. Secondly, three variables were chosen to evaluate the level of implementability of the models: (1) frequency of use of quality indicators in the international models; (2) degree of constructability of the models in two Italian nursing homes; (3) perceived relevance of the indicators used by the chosen models, by nursing home workers...
November 2016: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28214862/differential-clonal-expansion-in-an-invading-cell-population-clonal-advantage-or-dumb-luck
#6
Donald F Newgreen, Dongcheng Zhang, Bevan L Cheeseman, Benjamin J Binder, Kerry A Landman
In neoplastic cell growth, clones and subclones are variable both in size and mutational spectrum. The largest of these clones are believed to represent those cells with mutations that make them the most "fit," in a Darwinian sense, for expansion in their microenvironment. Thus, the degree of quantitative clonal expansion is regarded as being determined by innate qualitative differences between the cells that originate each clone. Here, using a combination of mathematical modelling and clonal labelling experiments applied to the developmental model system of the forming enteric nervous system, we describe how cells which are qualitatively identical may consistently produce clones of dramatically different sizes: most clones are very small while a few clones we term "superstars" contribute most of the cells to the final population...
2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28214854/microrna-183-suppresses-neuropathic-pain-and-expression-of-ampa-receptors-by-targeting-mtor-vegf-signaling-pathway
#7
Xiaojuan Xie, Ligang Ma, Kai Xi, Wei Zhang, Dongmei Fan
BACKGROUND: Neuropathic pain is a type of chronic pain that results from dysfunctions of the somatosensory nerve system. This study was aimed to investigate the effect of mTOR/VEGF signaling pathway on neuropathic pain and the regulation mechanisms of miR-183 on AMPA Receptors through mTOR/VEGF signaling pathway. METHODS: Chronic compress injury (CCI) model was constructed in the current study, we used paw withdrawal mechanic threshold (PWMT) and paw withdrawal thermal latency (PWTL) to observe mTOR and VEGF receptors...
January 18, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214826/emodin-increases-expression-of-insulin-like-growth-factor-binding-protein-1-through-activation-of-mek-erk-ampk%C3%AE-and-interaction-of-ppar%C3%AE-and-sp1-in-lung-cancer
#8
Qing Tang, JingJing Wu, Fang Zheng, Swei Sunny Hann, YuQing Chen
BACKGROUND: Emodin has anti-neoplastic activities on multiple tumors. However, the molecular mechanisms underlying this effect still remain to be fully understood. METHODS: Cell viability and cell cycle distribution were measured using 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assays and flow cytometry, respectively. Cell invasion and migration were examined by transwell invasion and wound healing assays. Western blot analysis was performed to examine the phosphorylation and protein expression of AMP-activated protein kinase alpha (AMPKα), extracellular signaling-regulated kinase 1/2 (ERK1/2), peroxisome proliferators-activated receptor gamma (PPARγ), insulin-like growth factor (IGF) binding protein 1 (IGFBP1) and the transcription factor Sp1...
January 26, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214776/the-metabolic-impact-of-extracellular-nitrite-on-aerobic-metabolism-of-paracoccus-denitrificans
#9
K R Hartop, M J Sullivan, G Giannopoulos, A J Gates, P L Bond, Z Yuan, T A Clarke, G Rowley, D J Richardson
Nitrite, in equilibrium with free nitrous acid (FNA), can inhibit both aerobic and anaerobic growth of microbial communities through bactericidal activities that have considerable potential for control of microbial growth in a range of water systems. There has been much focus on the effect of nitrite/FNA on anaerobic metabolism and so, to enhance understanding of the metabolic impact of nitrite/FNA on aerobic metabolism, a study was undertaken with a model denitrifying bacterium Paracoccus denitrificans PD1222...
February 7, 2017: Water Research
https://www.readbyqxmd.com/read/28214722/when-high-pressure-system-constraints-and-a-social-justice-mission-collide-a-socio-structural-analysis-of-emergency-department-social-work-services
#10
Megan Moore, Margaret Cristofalo, Danae Dotolo, Nicole Torres, Alexandra Lahdya, Leyna Ho, Mia Vogel, Mollie Forrester, Bonnie Conley, Susan Fouts
The emergency department (ED) can be a critical intervention point for many patients with multifaceted needs. Social workers have long been part of interdisciplinary ED teams. This study aimed to contribute to the limited understanding of social worker-patient interactions and factors influencing social work services in this setting. This paper reports a qualitative content analysis of social work medical record notes (N = 1509) of services provided to trauma patients in an urban, public, level 1 trauma center and an in-depth analysis of semi-structured interviews with ED social workers (N = 10)...
February 11, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28214710/a-preliminary-investigation-of-the-relationships-between-historical-crash-and-naturalistic-driving
#11
Anurag Pande, Sai Chand, Neeraj Saxena, Vinayak Dixit, James Loy, Brian Wolshon, Joshua D Kent
This paper describes a project that was undertaken using naturalistic driving data collected via Global Positioning System (GPS) devices to demonstrate a proof-of-concept for proactive safety assessments of crash-prone locations. The main hypothesis for the study is that the segments where drivers have to apply hard braking (higher jerks) more frequently might be the "unsafe" segments with more crashes over a long-term. The linear referencing methodology in ArcMap was used to link the GPS data with roadway characteristic data of US Highway 101 northbound (NB) and southbound (SB) in San Luis Obispo, California...
February 16, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28214687/gastroprotective-effect-and-mechanism-of-action-of-croton-rhamnifolioides-essential-oil-in-mice
#12
Cinara Soares Vidal, Anita Oliveira Brito Pereira Bezerra Martins, Andressa de Alencar Silva, Maria Rayane Correia de Oliveira, Jaime Ribeiro-Filho, Thaís Rodrigues de Albuquerque, Henrique Douglas Melo Coutinho, Jackson Roberto Guedes da Silva Almeida, Lucindo Jose Quintans, Irwin Rose Alencar de Menezes
BACKGROUND: Croton rhamnifolioides Pax is a plant species that have been used in the folk medicine to treat ulcers, inflammations and hypertension. However, despite the relevant data obtained from ethnopharmacological studies, the pharmacological properties endorsing the efficacy of this plant to treat ulcer remain to be elucidated. HYPOTHESIS/PURPOSE: The present study aimed to characterize the chemical profile and evaluate the gastroprotective activity of the essential oil obtained from C...
February 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28214607/real-time-liver-uptake-and-biodistribution-of-magnetic-nanoparticles-determined-by-ac-biosusceptometry
#13
Caio C Quini, André G Próspero, Marcos F F Calabresi, Gustavo M Moretto, Nicholas Zufelato, Sunil Krishnan, Diana R Pina, Ricardo B Oliveira, Oswaldo Baffa, Andris F Bakuzis, Jose R A Miranda
We describe the development of a joint in vivo/ex vivo protocol to monitor magnetic nanoparticles in animal models. Alternating current biosusceptometry (ACB) enables the assessment of magnetic nanoparticle accumulation, followed by quantitative analysis of concentrations in organs of interest. We present a study of real-time liver accumulation, followed by the assessment of sequential biodistribution using the same technique. For quantification, we validated our results by comparing all of the data with electron spin resonance (ESR)...
February 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28214593/jak-stat-pathway-directed-therapy-of-t-cell-leukemia-lymphoma-inspired-by-functional-and-structural-genomics
#14
REVIEW
Thomas A Waldmann
Abnormal activation of the γc cytokine JAK/STAT signaling pathway assessed by STAT3 or STAT5b phosphorylation was present in a proportion of many T-cell malignancies. Activating mutations of STAT3/STAT5b and JAK1/3 were present in some but not in all cases with constitutive signaling pathway activation. Using shRNA analysis pSTAT malignant T-cell lines were addicted to JAKs/STATs whether they were mutated or not. Activating JAK/STAT mutations were not sufficient to support leukemic cell proliferation but only augmented upstream pathway signals...
February 15, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28214562/leveraging-health-informatics-to-a-foster-smart-systems-response-to-health-disparities-and-health-equity-challenges
#15
Timothy Jay Carney, Amanda Y Kong
Informaticians are challenged to design health IT solutions for complex problems like health disparities but are only achieving mixed results in demonstrating a direct impact on health outcomes. This presentation of collective intelligence and the corresponding terms of smart health, knowledge ecosystem, enhanced health disparities informatics capacities, knowledge exchange, big-data, and situational awareness are means of demonstrating the complex challenges informatics professional face in trying to model, measure, and manage an intelligence and a smart systems response to health disparities...
February 15, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28214547/cerebral-small-vessel-disease-predisposes-to-temporal-lobe-epilepsy-in-spontaneously-hypertensive-rats
#16
Emilio Russo, Antonio Leo, Francesca Scicchitano, Annalidia Donato, Edoardo Ferlazzo, Sara Gasparini, Vittoria Cianci, Chiara Mignogna, Giuseppe Donato, Rita Citraro, Umberto Aguglia, Giovambattista De Sarro
The link between cerebral small vessel disease (CSVD) and epilepsy has been poorly investigated. Some reports suggest that CSVD may predispose to temporal lobe epilepsy (TLE). Aim of this study was to evaluate whether spontaneously hypertensive rats (SHRs), an established model of systemic hypertension and CSVD, have a propensity to develop TLE more than generalized seizures. To this aim, amygdala kindling, as a model of TLE, and pentylenetetrazole (PTZ)-induced kindling, as a model of generalized seizures, have been used to ascertain whether SHRs are more prone to TLE as compared to Wistar Kyoto control rats...
February 15, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28214535/multilevel-ensemble-model-for-prediction-of-iga-and-igg-antibodies
#17
Divya Khanna, Prashant Singh Rana
Identification of antigen for inducing specific class of antibody is prime objective in peptide based vaccine designs, immunodiagnosis, and antibody productions. It's urge to introduce a reliable system with high accuracy and efficiency for prediction. In the present study, a novel multilevel ensemble model is developed for prediction of antibodies IgG and IgA. Epitope length is important in training the model and it is efficient to use variable length of epitopes. In this ensemble approach, seven different machine learning models are combined to predict variable length of epitopes (4 to 50)...
February 15, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28214530/automaton-model-of-protein-dynamics-of-conformational-and-functional-states
#18
REVIEW
Andrei Khrennikov, Ekaterina Yurova
In this conceptual paper we propose to explore the analogy between ontic/epistemic description of quantum phenomena and interrelation between dynamics of conformational and functional states of proteins. Another new idea is to apply theory of automata to model the latter dynamics. In our model protein's behavior is modeled with the aid of two dynamical systems, ontic and epistemic, which describe evolution of conformational and functional states of proteins, respectively. The epistemic automaton is constructed from the ontic automaton on the basis of functional (observational) equivalence relation on the space of ontic states...
February 15, 2017: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/28214516/saturation-of-long-term-potentiation-in-the-dorsal-cochlear-nucleus-and-its-pharmacological-reversal-in-an-experimental-model-of-tinnitus
#19
Thomas Tagoe, Daniel Deeping, Martine Hamann
Animal models have demonstrated that tinnitus is a pathology of dysfunctional excitability in the central auditory system, in particular in the dorsal cochlear nucleus (DCN) of the brainstem. We used a murine model and studied whether acoustic over-exposure leading to hearing loss and tinnitus, affects long-term potentiation (LTP) at DCN multisensory synapses. Whole cell and field potential recordings were used to study the effects on release probability and synaptic plasticity, respectively in brainstem slices...
February 15, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28214475/hunter-and-new-england-healthpathways-a-4-year-journey-of-integrated-care
#20
Jane S Gray, Judith R Swan, Margaret A Lynch, Tracey M Tay, Marika-Jane Mackenzie, John H Wiggers, Karen A Harrison, Robert C McDonald, Ian P O'Dea, Louise M Harrigan, Sandra M Fitzgerald
Objective This paper describes the 4-year journey of Hunter and New England HealthPathways - a password-protected web-based portal designed to provide localised evidence-informed clinical and referral information to support general practice at the point of care.Methods A process evaluation was conducted in 2013, with a case study comparison performed in 2014 to assess impact of HealthPathways on patient referral and access to specialist care, followed by a review in 2016 of utilisation of the online portal to assess whether healthcare providers continued to access HealthPathways...
February 20, 2017: Australian Health Review: a Publication of the Australian Hospital Association
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