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https://www.readbyqxmd.com/read/28088078/genetically-tailored-magnetosomes-used-as-mri-probe-for-molecular-imaging-of-brain-tumor
#1
M Boucher, F Geffroy, S Prévéral, L Bellanger, E Selingue, G Adryanczyk-Perrier, M Péan, C T Lefèvre, D Pignol, N Ginet, S Mériaux
We investigate here the potential of single step production of genetically engineered magnetosomes, bacterial biogenic iron-oxide nanoparticles embedded in a lipid vesicle, as a new tailorable magnetic resonance molecular imaging probe. We demonstrate in vitro the specific binding and the significant internalization into U87 cells of magnetosomes decorated with RGD peptide. After injection at the tail vein of glioblastoma-bearing mice, we evidence in the first 2 h the rapid accumulation of both unlabeled and functionalized magnetosomes inside the tumor by Enhanced Permeability and Retention effects...
December 19, 2016: Biomaterials
https://www.readbyqxmd.com/read/28087821/selection-of-first-line-therapy-in-multiple-sclerosis-using-risk-benefit-decision-analysis
#2
David Bargiela, Matthew T Bianchi, M Brandon Westover, Lori B Chibnik, Brian C Healy, Philip L De Jager, Zongqi Xia
OBJECTIVE: To integrate long-term measures of disease-modifying drug efficacy and risk to guide selection of first-line treatment of multiple sclerosis. METHODS: We created a Markov decision model to evaluate disability worsening and progressive multifocal leukoencephalopathy (PML) risk in patients receiving natalizumab (NTZ), fingolimod (FGL), or glatiramer acetate (GA) over 30 years. Leveraging publicly available data, we integrated treatment utility, disability worsening, and risk of PML into quality-adjusted life-years (QALYs)...
January 13, 2017: Neurology
https://www.readbyqxmd.com/read/28087549/engaging-stakeholders-and-target-groups-in-prioritising-a-public-health-intervention-the-creating-active-school-environments-case-online-delphi-study
#3
Katie L Morton, Andrew J Atkin, Kirsten Corder, Marc Suhrcke, David Turner, Esther M F van Sluijs
OBJECTIVES: Stakeholder engagement and public involvement are considered as integral to developing effective public health interventions and is encouraged across all phases of the research cycle. However, limited guidelines and appropriate tools exist to facilitate stakeholder engagement-especially during the intervention prioritisation phase. We present the findings of an online 'Delphi' study that engaged stakeholders (including young people) in the process of prioritising secondary school environment-focused interventions that aim to increase physical activity...
January 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28086933/self-collection-based-hpv-testing-for-cervical-cancer-screening-among-women-living-with-hiv-in-uganda-a-descriptive-analysis-of-knowledge-intentions-to-screen-and-factors-associated-with-hpv-positivity
#4
Sheona M Mitchell, Heather N Pedersen, Evelyn Eng Stime, Musa Sekikubo, Erin Moses, David Mwesigwa, Christine Biryabarema, Jan Christilaw, Josaphat K Byamugisha, Deborah M Money, Gina S Ogilvie
BACKGROUND: Women living with HIV (WHIV) are disproportionately impacted by cervical dysplasia and cancer. The burden is greatest in low-income countries where limited or no access to screening exists. The goal of this study was to describe knowledge and intentions of WHIV towards HPV self-collection for cervical cancer screening, and to report on factors related to HPV positivity among women who participated in testing. METHODS: A validated survey was administered to 87 HIV positive women attending the Kisenyi Health Unit aged 30-69 years old, and data was abstracted from chart review...
January 13, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28086867/process-evaluation-of-an-integrated-care-pathway-in-geriatric-rehabilitation-for-people-with-complex-health-problems
#5
Irma H J Everink, Jolanda C M van Haastregt, Jose M C Maessen, Jos M G A Schols, Gertrudis I J M Kempen
BACKGROUND: An integrated care pathway in geriatric rehabilitation was developed to improve coordination and continuity of care for community-living older adults in the Netherlands, who go through the process of hospital admission, admission to a geriatric rehabilitation facility and discharge back to the home situation. This pathway is a complex intervention and is focused on improving communication, triage and transfers of patients between the hospital, geriatric rehabilitation facility and primary care organisations...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086861/managing-shades-of-grey-a-focus-group-study-exploring-community-dwellers-views-on-advance-care-planning-in-older-people
#6
Natasha Michael, Clare O'Callaghan, Emma Sayers
BACKGROUND: Community-dwelling consumers of healthcare are increasing, many aging with life-limiting conditions and deteriorating cognition. However, few have had advance care planning discussions or completed documentation to ensure future care preferences are acted upon. This study examines the awareness, attitudes, and experiences of advance care planning amongst older people and unrelated offspring/caregivers of older people residing in the community. METHODS: Qualitative descriptive research, which included focus groups with older people (55+ years) and older people's offspring/caregivers living in an Australian city and surrounding rural region...
January 13, 2017: BMC Palliative Care
https://www.readbyqxmd.com/read/28086860/nicotiana-attenuata-data-hub-nadh-an-integrative-platform-for-exploring-genomic-transcriptomic-and-metabolomic-data-in-wild-tobacco
#7
Thomas Brockmöller, Zhihao Ling, Dapeng Li, Emmanuel Gaquerel, Ian T Baldwin, Shuqing Xu
BACKGROUND: Nicotiana attenuata (coyote tobacco) is an ecological model for studying plant-environment interactions and plant gene function under real-world conditions. During the last decade, large amounts of genomic, transcriptomic and metabolomic data have been generated with this plant which has provided new insights into how native plants interact with herbivores, pollinators and microbes. However, an integrative and open access platform that allows for the efficient mining of these -omics data remained unavailable until now...
January 13, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28086821/a-transcriptome-profile-in-hepatocellular-carcinomas-based-on-integrated-analysis-of-microarray-studies
#8
Feifei Wang, Ruliang Wang, Qiuwen Li, Xueling Qu, Yixin Hao, Jingwen Yang, Huixia Zhao, Qian Wang, Guanghui Li, Fengyun Zhang, He Zhang, Xuan Zhou, Xioumei Peng, Yang Bian, Wenhua Xiao
BACKGROUND: Despite new treatment options for hepatocellular carcinomas (HCC) recently, 5-year survival remains poor, ranging from 50 to 70%, which may attribute to the lack of early diagnostic biomarkers. Thus, developing new biomarkers for early diagnosis of HCC, is extremely urgent, aiming to decrease HCC-related deaths. METHODS: In the study, we conducted a comprehensive characterization of gene expression data of HCC based on a bioinformatics method. The results were confirmed by real time polymerase chain reaction (RT-PCR) and TCGA database to prove the credibility of this integrated analysis...
January 13, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28081581/differences-in-gene-expression-and-gene-associations-in-epicardial-fat-compared-to-subcutaneous-fat
#9
J Yim, S W Rabkin
Epicardial adipose tissue (EAT) plays a role in cardiac physiology and may contribute to the development of coronary artery disease. Our objective was to determine whether there was a significant difference in gene expression in EAT compared to subcutaneous adipose tissue (SAT) and to identify potential relationships. MEDLINE and EMBASE were searched using the key terms "Epicardial Adipose Tissue" or "Epicardial Fat" in combination with "RNA", "mRNA", or "gene". The entry criteria were studies that presented primary data including expression levels of mRNA in human EAT compared with SAT and an expression of variance (SD)...
January 12, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28081561/a-novel-richardson-lucy-model-with-dictionary-basis-and-spatial-regularization-for-isolating-isotropic-signals
#10
Tiantian Xu, Yuanjing Feng, Ye Wu, Qingrun Zeng, Jun Zhang, Jianzhong He, Qichuan Zhuge
Diffusion-weighted magnetic resonance imaging is a non-invasive imaging method that has been increasingly used in neuroscience imaging over the last decade. Partial volume effects (PVEs) exist in sampling signal for many physical and actual reasons, which lead to inaccurate fiber imaging. We overcome the influence of PVEs by separating isotropic signal from diffusion-weighted signal, which can provide more accurate estimation of fiber orientations. In this work, we use a novel response function (RF) and the correspondent fiber orientation distribution function (fODF) to construct different signal models, in which case the fODF is represented using dictionary basis function...
2017: PloS One
https://www.readbyqxmd.com/read/28081277/comparative-genomic-hybridization-analysis-of-rice-dwarf-mutants-induced-by-gamma-irradiation
#11
J E Hwang, S-H Kim, I J Jung, S M Han, J-W Ahn, S-J Kwon, S H Kim, S-Y Kang, D S Kim, J-B Kim
Comparative genomic hybridization (CGH) is a powerful tool used to analyze changes in copy number, polymorphisms, and structural variations in the genome. Gene copy number variation (CNV) is a common form of natural diversity in the genome, which can create new genes and alter gene structure. Thus, CNVs may influence phenotypic variation and gene expression. In this study, to detect CNVs, we irradiated rice seeds with gamma rays (300 Gy) and selected two dwarf mutagenized plants, GA-III-189 and -1052, in the M3 generation...
December 23, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28081159/osmoregulation-in-the-halophilic-bacterium-halomonas-elongata-a-case-study-for-integrative-systems-biology
#12
Viktoria Kindzierski, Silvia Raschke, Nicole Knabe, Frank Siedler, Beatrix Scheffer, Katharina Pflüger-Grau, Friedhelm Pfeiffer, Dieter Oesterhelt, Alberto Marin-Sanguino, Hans-Jörg Kunte
Halophilic bacteria use a variety of osmoregulatory methods, such as the accumulation of one or more compatible solutes. The wide diversity of compounds that can act as compatible solute complicates the task of understanding the different strategies that halophilic bacteria use to cope with salt. This is specially challenging when attempting to go beyond the pathway that produces a certain compatible solute towards an understanding of how the metabolic network as a whole addresses the problem. Metabolic reconstruction based on genomic data together with Flux Balance Analysis (FBA) is a promising tool to gain insight into this problem...
2017: PloS One
https://www.readbyqxmd.com/read/28080961/interoception-beyond-homeostasis-affect-cognition-and-mental-health
#13
Manos Tsakiris, Hugo Critchley
Interoception refers to the sensing of the internal state of one's body. Interoception is distinct from the processing of sensory information concerning external (non-self) stimuli (e.g. vision, hearing, touch and smell) and is the afferent axis to internal (autonomic and hormonal) physiological control. However, the impact of interoception extends beyond homeostatic/allostatic reflexes: it is proposed to be fundamental to motivation, emotion (affective feelings and behaviours), social cognition and self-awareness...
November 19, 2016: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28079621/effects-of-education-and-information-on-vaccination-behavior-in-patients-with-inflammatory-bowel-disease
#14
Sofie Coenen, Ellen Weyts, Cedric Jorissen, Paul De Munter, Maja Noman, Vera Ballet, Séverine Vermeire, Gert Van Assche, Marc Ferrante
BACKGROUND: Despite the existence of international guidelines, vaccination in patients with inflammatory bowel disease (IBD) has not been integrated optimally. We developed a thorough education program, and compared its influence on vaccination rates with routine clinical practice in a tertiary IBD center. METHODS: Between December 2014 and March 2015, we included 505 consecutive patients with IBD visiting our outpatient clinic (53% men, 72% Crohn's disease, median age 44 years)...
January 10, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28079398/feasibility-evaluation-of-diffusion-weighted-imaging-using-an-integrated-mri-radiotherapy-system-for-response-assessment-to-neoadjuvant-therapy-in-rectal-cancer
#15
Narek Shaverdian, Yingli Yang, Peng Hu, Steven Hart, Ke Sheng, James Lamb, Minsong Cao, Nzhde Agazaryan, David Thomas, Michael Steinberg, Daniel A Low, Percy Lee
OBJECTIVES: To evaluate the feasibility of on-board DWI with an integrated low-field MRI-radiotherapy system to assess responses to neoadjuvant chemoradiation (NAC) in rectal cancer. METHODS: A spin echo-based planar imaging diffusion sequence on a 0.35 T MRI-radiotherapy system was acquired over the course of NAC. The apparent diffusion coefficients (ADC) from the tumor region of interest (ROIs) were calculated. A functional diffusion map (fDM) was created showing a pixel-wise ADC analysis of the ROI over the course of treatment...
January 12, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28079128/parallel-meta-3-comprehensive-taxonomical-and-functional-analysis-platform-for-efficient-comparison-of-microbial-communities
#16
Gongchao Jing, Zheng Sun, Honglei Wang, Yanhai Gong, Shi Huang, Kang Ning, Jian Xu, Xiaoquan Su
The number of metagenomes is increasing rapidly. However, current methods for metagenomic analysis are limited by their capability for in-depth data mining among a large number of microbiome each of which carries a complex community structure. Moreover, the complexity of configuring and operating computational pipeline also hinders efficient data processing for the end users. In this work we introduce Parallel-META 3, a comprehensive and fully automatic computational toolkit for rapid data mining among metagenomic datasets, with advanced features including 16S rRNA extraction for shotgun sequences, 16S rRNA copy number calibration, 16S rRNA based functional prediction, diversity statistics, bio-marker selection, interaction network construction, vector-graph-based visualization and parallel computing...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28079125/establishment-of-a-integrative-multi-omics-expression-database-ckddb-in-the-context-of-chronic-kidney-disease-ckd
#17
Marco Fernandes, Holger Husi
Complex human traits such as chronic kidney disease (CKD) are a major health and financial burden in modern societies. Currently, the description of the CKD onset and progression at the molecular level is still not fully understood. Meanwhile, the prolific use of high-throughput omic technologies in disease biomarker discovery studies yielded a vast amount of disjointed data that cannot be easily collated. Therefore, we aimed to develop a molecule-centric database featuring CKD-related experiments from available literature publications...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28078966/visual-and-cross-modal-cues-increase-the-identification-of-overlapping-visual-stimuli-in-balint-s-syndrome
#18
Daniela D'Imperio, Michele Scandola, Valeria Gobbetto, Cristina Bulgarelli, Matteo Salgarello, Renato Avesani, Valentina Moro
INTRODUCTION: Cross-modal interactions improve the processing of external stimuli, particularly when an isolated sensory modality is impaired. When information from different modalities is integrated, object recognition is facilitated probably as a result of bottom-up and top-down processes. The aim of this study was to investigate the potential effects of cross-modal stimulation in a case of simultanagnosia. METHOD: We report a detailed analysis of clinical symptoms and an (18)F-fluorodeoxyglucose (FDG) brain positron emission tomography/computed tomography (PET/CT) study of a patient affected by Balint's syndrome, a rare and invasive visual-spatial disorder following bilateral parieto-occipital lesions...
January 12, 2017: Journal of Clinical and Experimental Neuropsychology
https://www.readbyqxmd.com/read/28078800/ghrelin-ameliorates-blood-brain-barrier-disruption-in-the-systemic-hypoxia
#19
Gisou Mohaddes, Jalal Abdolalizadeh, Shirin Babri, Fezzeh Hossienzadeh
The blood brain barrier (BBB), which serves to protect homeostasis of the central nervous system, is formed by tight junction proteins. Several studies have indicated that systemic hypoxia leads to cerebral edema through disruption of the tight junction proteins such as occludin and zonula occludens-1 (ZO-1). According to our previous studies ghrelin attenuates cerebral edema in the hypoxic brain. However, its mechanisms are not completely understood. The present study was aimed to determine the effect of ghrelin on occludin and Zo-1 in the hypoxic brain...
January 11, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28078731/rapid-automated-landmarking-for-morphometric-analysis-of-three-dimensional-facial-scans
#20
Mao Li, Joanne B Cole, Mange Manyama, Jacinda R Larson, Denise K Liberton, Sheri L Riccardi, Tracey M Ferrara, Stephanie A Santorico, Jordan J Bannister, Nils D Forkert, Richard A Spritz, Washington Mio, Benedikt Hallgrimsson
Automated phenotyping is essential for the creation of large, highly standardized datasets from anatomical imaging data. Such datasets can support large-scale studies of complex traits or clinical studies related to precision medicine or clinical trials. We have developed a method that generates three-dimensional landmark data that meet the requirements of standard geometric morphometric analyses. The method is robust and can be implemented without high-performance computing resources. We validated the method using both direct comparison to manual landmarking on the same individuals and also analyses of the variation patterns and outlier patterns in a large dataset of automated and manual landmark data...
January 12, 2017: Journal of Anatomy
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