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https://www.readbyqxmd.com/read/28398479/clinical-significance-of-mirna-host-gene-promoter-methylation-in-prostate-cancer
#1
Kristina Daniunaite, Monika Dubikaityte, Povilas Gibas, Arnas Bakavicius, Juozas Rimantas Lazutka, Albertas Ulys, Feliksas Jankevicius, Sonata Jarmalaite
Only a part of prostate cancer (PCa) patients has aggressive malignancy requiring adjuvant treatment after radical prostatectomy (RP). Biomarkers capable to predict biochemical PCa recurrence (BCR) after RP would significantly improve preoperative risk stratification and treatment decisions. MicroRNA (miRNA) deregulation has recently emerged as an important phenomenon in tumor development and progression, however, the mechanisms remain largely unstudied. In the present study, based on microarray profiling of DNA methylation in 9 pairs of PCa and noncancerous prostate tissues (NPT), host genes of miR-155-5p, miR-152-3p, miR-137, miR-31-5p, and miR-642a, -b were analyzed for promoter methylation in 129 PCa, 35 NPT, and 17 benign prostatic hyperplasia samples (BPH) and compared to the expression of mature miRNAs and their selected targets (DNMT1, KDM1A, and KDM5B)...
April 7, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28397440/diagnostic-usefulness-of-scd163-procalcitonin-and-neopterin-for-sepsis-risk-assessment-in-critically-ill-patients
#2
Agnieszka Sapa, Alina Rak, Magdalena Wybieralska, Jakub Machoń, Anna Krzywonos-Zawadzka, Kamil Zawadzki, Marek Wełna, Mieczysław Woźniak
BACKGROUND: Sepsis is one of the most common causes of hospitalization and it is characterized by a high mortality rate in spite of the great progress in diagnosis and treatment achieved in recent years. Early diagnosis of sepsis is one of the most important elements of effective treatment. The clinical symptoms are not specific and biomarkers are considered to be useful tools in sepsis diagnostics. OBJECTIVES: The aim of our study was to evaluate the diagnostic value of sCD163 as a marker of sepsis and a comparison of it with procalcitonin and neopterin in ICU patients...
January 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28388310/exploring-barriers-to-primary-care-for-migrants-in-greece-in-times-of-austerity-perspectives-of-service-providers
#3
Maria Papadakaki, Christos Lionis, Aristoula Saridaki, Christopher Dowrick, Tomas de Brún, Mary O'Reilly-de Brún, Catherine A O'Donnell, Nicola Burns, Evelyn van Weel-Baumgarten, Maria van den Muijsenbergh, Wolfgang Spiegel, Anne MacFarlane
BACKGROUND: Migration in Europe is increasing at an unprecedented rate. There is an urgent need to develop 'migrant-sensitive healthcare systems'. However, there are many barriers to healthcare for migrants. Despite Greece's recent, significant experiences of inward migration during a period of economic austerity, little is known about Greek primary care service providers' experiences of delivering care to migrants. OBJECTIVES: To identify service providers' views on the barriers to migrant healthcare...
December 2017: European Journal of General Practice
https://www.readbyqxmd.com/read/28373795/comparison-of-cognitive-parameters-between-bilateral-and-unilateral-hippocampal-sclerosis
#4
Ebru Nur Vanli Yavuz, Başar Bilgiç, Zeliha Matur, Nerses Bebek, Candan Gürses, Ayşen Gökyiğit, Öget Öktem, Betül Baykan
INTRODUCTION: Recent studies showed that hippocampal sclerosis (HS) patients with unilateral involvement had more diffuse cognitive impairment than expected. Therefore, we aimed to compare the cognitive profiles of bilateral HS (BHS) patients with unilateral HS (UHS) patients. METHODS: Consecutive patients, diagnosed with epilepsy, who fulfilled two major magnetic resonance imaging (MRI) criteria (T1 atrophy and T2-FLAIR hyperintensity) for HS were included. Standard neuro-psychological test (NPT) battery consisted of the Turkish version of 15-word verbal memory processes test, Wechsler memory scale visual reproduction subtest, forward and backward digit span, phonemic and semantic fluency, and Stroop test were applied; and the groups with right HS, left HS, and bilateral HS were compared statistically...
September 2016: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/28303536/cadmium-adsorption-chelation-and-compartmentalization-limit-root-to-shoot-translocation-of-cadmium-in-rice-oryza-sativa-l
#5
Qiang Xu, Changquan Wang, Shigui Li, Bing Li, Qiquan Li, Guangdeng Chen, Weilan Chen, Feng Wang
Strategies to reduce cadmium (Cd) in rice grain, below concentrations that represent serious human health concerns, require that the mechanisms of Cd distribution and accumulation within rice plants be established. Here, a comprehensive hydroponic experiment was performed to investigate the differences in the Cd uptake, chelation and compartmentalization between high (D83B) and low (D62B) Cd-accumulation cultivars contrasting in Cd accumulation in order to establish the roles of these processes in limiting Cd translocation from root to shoot...
March 16, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28303289/-relevance-of-nasal-provocation-testing-in-house-dust-mite-allergy
#6
B R Haxel
Patients with house dust mite allergies frequently exhibit very different symptoms to those allergic to other inhalant allergens. The frequency of comorbid allergic asthma in these patients is increased. Therefore, diagnosing patients with suspected house dust mite allergies can be difficult. It is important to distinguish between sensitization to an allergen and a clinically relevant allergy. Nasal provocation testing (NPT) is a reliable method to identify patients suitable for a causal treatment (specific immunotherapy)...
March 16, 2017: HNO
https://www.readbyqxmd.com/read/28225134/phase-behaviour-and-gravity-directed-self-assembly-of-hard-convex-spherical-caps
#7
John M McBride, Carlos Avendaño
We investigate the phase behaviour and self-assembly of convex spherical caps using Monte Carlo simulations. This model is used to represent the main features observed in experimental colloidal particles with mushroom-cap shape [Riley et al., Langmuir, 2010, 26, 1648]. The geometry of this non-centrosymmetric convex model is fully characterized by the aspect ratio χ* defined as the spherical cap height to diameter ratio. We use NPT Monte Carlo simulations combined with free energy calculations to determine the most stable crystal structures and the phase behaviour of convex spherical caps with different aspect ratios...
February 22, 2017: Soft Matter
https://www.readbyqxmd.com/read/28222736/implementing-guidelines-and-training-initiatives-to-improve-cross-cultural-communication-in-primary-care-consultations-a-qualitative-participatory-european-study
#8
E Teunissen, K Gravenhorst, C Dowrick, E Van Weel-Baumgarten, F Van den Driessen Mareeuw, T de Brún, N Burns, C Lionis, F S Mair, C O'Donnell, M O'Reilly-de Brún, M Papadakaki, A Saridaki, W Spiegel, C Van Weel, M Van den Muijsenbergh, A MacFarlane
BACKGROUND: Cross-cultural communication in primary care is often difficult, leading to unsatisfactory, substandard care. Supportive evidence-based guidelines and training initiatives (G/TIs) exist to enhance cross cultural communication but their use in practice is sporadic. The objective of this paper is to elucidate how migrants and other stakeholders can adapt, introduce and evaluate such G/TIs in daily clinical practice. METHODS: We undertook linked qualitative case studies to implement G/TIs focused on enhancing cross cultural communication in primary care, in five European countries...
February 10, 2017: International Journal for Equity in Health
https://www.readbyqxmd.com/read/28209558/readiness-for-delivering-digital-health-at-scale-lessons-from-a-longitudinal-qualitative-evaluation-of-a-national-digital-health-innovation-program-in-the-united-kingdom
#9
Marilyn R Lennon, Matt-Mouley Bouamrane, Alison M Devlin, Siobhan O'Connor, Catherine O'Donnell, Ula Chetty, Ruth Agbakoba, Annemieke Bikker, Eleanor Grieve, Tracy Finch, Nicholas Watson, Sally Wyke, Frances S Mair
BACKGROUND: Digital health has the potential to support care delivery for chronic illness. Despite positive evidence from localized implementations, new technologies have proven slow to become accepted, integrated, and routinized at scale. OBJECTIVE: The aim of our study was to examine barriers and facilitators to implementation of digital health at scale through the evaluation of a £37m national digital health program: ‟Delivering Assisted Living Lifestyles at Scale" (dallas) from 2012-2015...
February 16, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28205520/cationic-amino-acid-transporters-play-key-roles-in-the-survival-and-transmission-of-apicomplexan-parasites
#10
Esther Rajendran, Sanduni V Hapuarachchi, Catherine M Miller, Stephen J Fairweather, Yeping Cai, Nicholas C Smith, Ian A Cockburn, Stefan Bröer, Kiaran Kirk, Giel G van Dooren
Apicomplexans are obligate intracellular parasites that scavenge essential nutrients from their hosts via transporter proteins on their plasma membrane. The identities of the transporters that mediate amino acid uptake into apicomplexans are unknown. Here we demonstrate that members of an apicomplexan-specific protein family-the Novel Putative Transporters (NPTs)-play key roles in the uptake of cationic amino acids. We show that an NPT from Toxoplasma gondii (TgNPT1) is a selective arginine transporter that is essential for parasite survival and virulence...
February 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28199103/using-the-k-d-tree-data-structure-to-accelerate-monte-carlo-simulations
#11
Qile P Chen, Bai Xue, J Ilja Siepmann
The k-d tree data structure is implemented in a Monte Carlo (MC) molecular simulation program to accelerate the range search for particles or interaction sites within the cutoff distance when Lennard-Jones and Coulomb interactions are computed. MC simulations are performed for different molecules in various ensembles to assess the efficiency enhancements due to the k-d tree data structure. It is found that the use of k-d trees accelerates significantly simulations for Lennard-Jones particles in the NVT and NVT-Gibbs ensembles and for n-butane and 2,4,6,8,10,12,14,16,18,20,22-undecamethylpentacosane represented by the TraPPE-UA force field in the NpT ensemble...
March 6, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28174514/associations-among-cognitive-functions-plasma-dna-and-white-matter-integrity-in-patients-with-early-onset-parkinson-s-disease
#12
Yueh-Sheng Chen, Meng-Hsiang Chen, Cheng-Hsien Lu, Pei-Chin Chen, Hsiu-Ling Chen, I-Hsiao Yang, Nai-Wen Tsai, Wei-Che Lin
Early-onset Parkinson's disease (EOPD) patients are symptomatic at a relatively young age, and the impacts of the disease on both the patients and their caregivers are dramatic. Few studies have reported on the cognitive impairments seen in EOPD, and the results of these studies have been diverse. Furthermore, it is still unclear what microstructural white matter (WM) changes are present in EOPD patients. As such, we conducted this study to investigate the microstructural WM changes experienced by EOPD patients and their association with cognitive function and plasma DNA levels...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28170260/efficient-conformational-search-based-on-structural-dissimilarity-sampling-applications-for-reproducing-structural-transitions-of-proteins
#13
Ryuhei Harada, Yasuteru Shigeta
Structural Dissimilarity Sampling (SDS) is proposed as an efficient conformational search method to promote structural transitions essential for the biological functions of proteins. In SDS, initial structures are selected based on structural dissimilarity, and conformational resampling is repeated. Conformational resampling is performed as follows: (I) arrangement of initial structures for a diverse distribution at the edge of a conformational subspace and (II) promotion of the structural transitions with multiple short-time molecular dynamics (MD) simulations restarting from the diversely distributed initial structures...
March 14, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28163595/identification-of-a-low-tiller-gene-from-a-new-plant-type-cultivar-in-rice-oryza-sativa-l
#14
Md Nashir Uddin, Asami Tomita, Mitsuhiro Obara, Seiji Yanagihara, Yoshimichi Fukuta
We characterized a rice introgression line, YTH34, harboring a chromosome segment from a New Plant Type (NPT) cultivar, IR65600-87-2-2-3, in the genetic background of an Indica Group elite rice cultivar, IR 64, under upland and irrigated lowland conditions in Japan. The number of panicles (as an indicator of tiller number) and number of spikelets per panicle of YTH34 were lower than those of IR 64 under irrigated lowland conditions, but both of those as well as culm length, panicle length, seed fertility, panicle weight, whole plant weight, and harvest index were dramatically reduced under upland conditions...
December 2016: Breeding Science
https://www.readbyqxmd.com/read/28122331/integrative-mirna-and-mrna-analysis-in-penile-carcinomas-reveals-markers-and-pathways-with-potential-clinical-impact
#15
Hellen Kuasne, Mateus C Barros-Filho, Ariane Busso-Lopes, Fábio A Marchi, Maisa Pinheiro, Juan J M Muñoz, Cristovam Scapulatempo-Neto, Eliney F Faria, Gustavo C Guimarães, Ademar Lopes, José C S Trindade-Filho, Maria Aparecida C Domingues, Sandra A Drigo, Silvia R Rogatto
Penile carcinoma (PeCa) is an important public health issue in poor and developing countries, and has only recently been explored in terms of genetic and epigenetic studies. Integrative data analysis is a powerful method for the identification of molecular drivers involved in cancer development and progression. miRNA and mRNA expression profiles followed by integrative analysis were investigated in 23 PeCa and 12 non-neoplastic penile tissues (NPT). Expression levels of eight miRNAs and 10 mRNAs were evaluated in the same set of samples used for microarray and in a validation set of cases (PeCa = 36; NPT = 27)...
February 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28120533/comparative-binding-to-dr4-and-dr5-receptors-of-trail-and-bnnts-pahe-mpeg-dspe-trail-nanoparticles
#16
Yves Claude Guillaume, Claire André
TRAIL is a member of the tumor necrosis factor family of cytokines, which induces apoptosis of cancer cells, thanks to its binding to its cognate receptors DR5 and DR4. We have recently demonstrated that nanovectorization of TRAIL with single-walled carbon nanotubes enhanced TRAIL affinity to DR5. In this paper, 1-pyrenebutyric acid N-hydroxysuccinimide ester functionalized boron nitride nanotubes (BNNTs) were used to anchor the TRAIL protein. The resulting BNNT/1-pyrenebutyric acid N-hydroxysuccinimide ester nanotubes were mixed with methoxy-poly(ethylene glycol)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-conjugates so as to allow a good dispersion of these nanoparticle TRAIL (NPT) in aqueous solution...
January 25, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28116227/the-effectiveness-of-negative-pressure-therapy-in-diabetic-foot-ulcers-with-elevated-protease-activity-a-case-series
#17
Valentina Izzo, Marco Meloni, Laura Giurato, Valeria Ruotolo, Luigi Uccioli
Objective: Despite several works have described the usefulness of negative pressure therapy (NPT) in the treatment of diabetic foot ulcers (DFUs), no studies have reported its ability in the proteases modulation in DFUs. The aim of this work was to evaluate the role of NPT as a protease-modulating treatment in DFUs. Approach: We conducted a prospective study of a series of diabetic patients affected by chronic DFUs. Each ulcer was assessed for matrix metalloproteinases (MMPs) activity with a protease status diagnostic test at the baseline and after 2 weeks of NPT...
January 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/28113447/implementing-kernel-methods-incrementally-by-incremental-nonlinear-projection-trick
#18
Nojun Kwak
Recently, the nonlinear projection trick (NPT) was introduced enabling direct computation of coordinates of samples in a reproducing kernel Hilbert space. With NPT, any machine learning algorithm can be extended to a kernel version without relying on the so called kernel trick. However, NPT is inherently difficult to be implemented incrementally because an ever increasing kernel matrix should be treated as additional training samples are introduced. In this paper, an incremental version of the NPT (INPT) is proposed based on the observation that the centerization step in NPT is unnecessary...
May 20, 2016: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28106256/evaluation-of-atomic-pressure-in-the-multiple-time-step-integration-algorithm
#19
Yoshimichi Andoh, Noriyuki Yoshii, Atsushi Yamada, Susumu Okazaki
In molecular dynamics (MD) calculations, reduction in calculation time per MD loop is essential. A multiple time-step (MTS) integration algorithm, the RESPA (Tuckerman and Berne, J. Chem. Phys. 1992, 97, 1990-2001), enables reductions in calculation time by decreasing the frequency of time-consuming long-range interaction calculations. However, the RESPA MTS algorithm involves uncertainties in evaluating the atomic interaction-based pressure (i.e., atomic pressure) of systems with and without holonomic constraints...
January 20, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28103848/the-crisp-colorectal-cancer-risk-prediction-tool-an-exploratory-study-using-simulated-consultations-in-australian-primary-care
#20
Jennifer G Walker, Adrian Bickerstaffe, Nadira Hewabandu, Sanjay Maddumarachchi, James G Dowty, Mark Jenkins, Marie Pirotta, Fiona M Walter, Jon D Emery
BACKGROUND: In Australia, screening for colorectal cancer (CRC) with colonoscopy is meant to be reserved for people at increased risk, however, currently there is a mismatch between individuals' risk of CRC and the type of CRC screening they receive. This paper describes the development and optimisation of a Colorectal cancer RISk Prediction tool ('CRISP') for use in primary care. The aim of the CRISP tool is to increase risk-appropriate CRC screening. METHODS: CRISP development was informed by previous experience with developing risk tools for use in primary care and a systematic review of the evidence...
January 19, 2017: BMC Medical Informatics and Decision Making
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