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https://www.readbyqxmd.com/read/29342398/adaptive-structure-concept-factorization-for-multiview-clustering
#1
Kun Zhan, Jinhui Shi, Jing Wang, Haibo Wang, Yuange Xie
Most existing multiview clustering methods require that graph matrices in different views are computed beforehand and that each graph is obtained independently. However, this requirement ignores the correlation between multiple views. In this letter, we tackle the problem of multiview clustering by jointly optimizing the graph matrix to make full use of the data correlation between views. With the interview correlation, a concept factorization-based multiview clustering method is developed for data integration, and the adaptive method correlates the affinity weights of all views...
January 17, 2018: Neural Computation
https://www.readbyqxmd.com/read/29342192/white-matter-tract-specific-quantitative-analysis-in-multiple-sclerosis-comparison-of-optic-radiation-reconstruction-techniques
#2
Chenyu Wang, Alexander Klistorner, Linda Ly, Michael H Barnett
The posterior visual pathway is commonly affected by multiple sclerosis (MS) pathology that results in measurable clinical and electrophysiological impairment. Due to its highly structured retinotopic mapping, the visual pathway represents an ideal substrate for investigating patho-mechanisms in MS. Therefore, a reliable and robust imaging segmentation method for in-vivo delineation of the optic radiations (OR) is needed. However, diffusion-based tractography approaches, which are typically used for OR segmentation are confounded by the presence of focal white matter lesions...
2018: PloS One
https://www.readbyqxmd.com/read/29340889/quantification-of-myocardial-perfusion-defect-size-in-rats-comparison-between-quantitative-perfusion-spect-and-autoradiography
#3
Hiroshi Wakabayashi, Junichi Taki, Anri Inaki, Tomo Hiromasa, Koichi Okuda, Takayuki Shibutani, Kazuhiro Shiba, Seigo Kinuya
PURPOSE: Ultra-high resolution single-photon emission computed tomography (SPECT) system, using multiple pinhole collimators, has been applied to the imaging of small rodents. We aimed to compare the myocardial infarction (MI) area on quantitative perfusion single-photon emission computed tomography (QPS; Cedars-Sinai Medical Center, USA) with that on high-resolution autoradiography in rat model to determine the accuracy of perfusion defect measurement by QPS. PROCEDURES: After thoracotomy, rats (n = 9) had their left coronary arteries occluded and reperfused before injection with 185 MBq [99mTc] methoxyisobutylisonitrile ([99mTc]MIBI) for SPECT and autoradiography...
January 16, 2018: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/29340679/effect-of-laparoscopic-sleeve-gastrectomy-vs-laparoscopic-roux-en-y-gastric-bypass-on-weight-loss-in-patients-with-morbid-obesity-the-sm-boss-randomized-clinical-trial
#4
Ralph Peterli, Bettina Karin Wölnerhanssen, Thomas Peters, Diana Vetter, Dino Kröll, Yves Borbély, Bernd Schultes, Christoph Beglinger, Jürgen Drewe, Marc Schiesser, Philipp Nett, Marco Bueter
Importance: Sleeve gastrectomy is increasingly used in the treatment of morbid obesity, but its long-term outcome vs the standard Roux-en-Y gastric bypass procedure is unknown. Objective: To determine whether there are differences between sleeve gastrectomy and Roux-en-Y gastric bypass in terms of weight loss, changes in comorbidities, increase in quality of life, and adverse events. Design, Setting, and Participants: The Swiss Multicenter Bypass or Sleeve Study (SM-BOSS), a 2-group randomized trial, was conducted from January 2007 until November 2011 (last follow-up in March 2017)...
January 16, 2018: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29340246/stat-tracks-and-mediotypes-powerful-tools-for-modern-ichnology-based-on-3d-models
#5
Matteo Belvedere, Matthew R Bennett, Daniel Marty, Marcin Budka, Sally C Reynolds, Rashid Bakirov
Vertebrate tracks are subject to a wide distribution of morphological types. A single trackmaker may be associated with a range of tracks reflecting individual pedal anatomy and behavioural kinematics mediated through substrate properties which may vary both in space and time. Accordingly, the same trackmaker can leave substantially different morphotypes something which must be considered in creating ichnotaxa. In modern practice this is often captured by the collection of a series of 3D track models. We introduce two concepts to help integrate these 3D models into ichnological analysis procedures...
2018: PeerJ
https://www.readbyqxmd.com/read/29340235/evidence-based-design-and-evaluation-of-a-whole-genome-sequencing-clinical-report-for-the-reference-microbiology-laboratory
#6
Anamaria Crisan, Geoffrey McKee, Tamara Munzner, Jennifer L Gardy
Background: Microbial genome sequencing is now being routinely used in many clinical and public health laboratories. Understanding how to report complex genomic test results to stakeholders who may have varying familiarity with genomics-including clinicians, laboratorians, epidemiologists, and researchers-is critical to the successful and sustainable implementation of this new technology; however, there are no evidence-based guidelines for designing such a report in the pathogen genomics domain...
2018: PeerJ
https://www.readbyqxmd.com/read/29339653/adherence-to-the-european-association-of-urology-guidelines-a-national-survey-among-italian-urologists
#7
Giovanni Cacciamani, Walter Artibani, Alberto Briganti, James N'Dow
OBJECTIVE: The study aimed to explore adherence to the European Urological Association (EAU) Guidelines (GLs) grade A recommendation among Italian urologists. MATERIALS AND METHODS: A 13-item multiple-choice questionnaire covering oncological and non-oncological urological diseases was e-mailed to all Italian Urologist Society (Società Italiana di Urologia or SIU) members. We asked members to provide an explanation for their answer choice where needed. The quantitative data were tested using the Pearson's chi-square test...
January 16, 2018: Urologia Internationalis
https://www.readbyqxmd.com/read/29339490/structural-basis-of-sterol-recognition-and-nonvesicular-transport-by-lipid-transfer-proteins-anchored-at-membrane-contact-sites
#8
Junsen Tong, Mohammad Kawsar Manik, Young Jun Im
Membrane contact sites (MCSs) in eukaryotic cells are hotspots for lipid exchange, which is essential for many biological functions, including regulation of membrane properties and protein trafficking. Lipid transfer proteins anchored at membrane contact sites (LAMs) contain sterol-specific lipid transfer domains [StARkin domain (SD)] and multiple targeting modules to specific membrane organelles. Elucidating the structural mechanisms of targeting and ligand recognition by LAMs is important for understanding the interorganelle communication and exchange at MCSs...
January 16, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29339459/a-novel-two-component-system-of-streptococcus-sanguinis-affecting-functions-associated-with-viability-in-saliva-and-biofilm-formation
#9
Tarsila M Camargo, Rafael N Stipp, Lívia A Alves, Erika N Harth-Chu, José F Höfling, Renata O Mattos-Graner
Streptococcus sanguinis is a pioneer species of teeth and a common opportunistic pathogen of infective endocarditis. In this study, we identified a two-component system, SptRS Ss , affecting S. sanguinis survival in saliva and biofilm formation. Isogenic mutants of sptRSs (SKsptR) and sptSSs (SKsptS) showed reduced cell counts in ex vivo assays of viability in saliva, compared to parent strain SK36 and complemented mutants. Reduced counts of the mutants in saliva were associated with reduced growth rates in poor nutrient medium (RPMI) and increased susceptibility to deposition of C3b and MAC of the complement system, a defense component of saliva and serum...
January 16, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29339303/estrogenic-activity-of-cylindrospermopsin-and-anatoxin-a-and-their-oxidative-products-by-feiii-b-h2o2
#10
Jishan Liu, Sandra E Hernández, Simon Swift, Naresh Singhal
The cyanotoxins released into waters during cyanobacterial blooms can pose serious hazards to humans and animals. Apart from their toxicological mechanisms, cyanotoxins have been shown to be involved in estrogenic activity by in vivo and in vitro assays; however, there is limited information on the change in estrogenicity of cyanotoxins following chemical oxidation. In this study, the estrogenic activity of cylindrospermopsin (CYL) and anatoxin-a (ANA) at concentrations ranging from 2.4 × 10-7 M to 2...
January 10, 2018: Water Research
https://www.readbyqxmd.com/read/29339143/gene-silencing-reveals-multiple-functions-of-na-k-atpase-in-the-salmon-louse-lepeophtheirus-salmonis
#11
Anna Z Komisarczuk, Heidi Kongshaug, Frank Nilsen
Na+/K+-ATPase has a key function in a variety of physiological processes including membrane excitability, osmoregulation, regulation of cell volume, and transport of nutrients. While knowledge about Na+/K+-ATPase function in osmoregulation in crustaceans is extensive, the role of this enzyme in other physiological and developmental processes is scarce. Here, we report characterization, transcriptional distribution and likely functions of the newly identified L. salmonis Na+/K+-ATPase (LsalNa+/K+-ATPase) α subunit in various developmental stages...
January 12, 2018: Experimental Parasitology
https://www.readbyqxmd.com/read/29338886/overweight-and-obesity-status-in-pregnant-women-are-related-to-intestinal-microbiota-and-serum-metabolic-and-inflammatory-profiles
#12
Noora Houttu, Kati Mokkala, Kirsi Laitinen
BACKGROUND: Overweight and obesity may predispose women to clinical complications during their pregnancy. We hypothesize that a higher degree of overweight status is related to a range of aberrations in biomarkers already in early pregnancy. Our objective was to investigate whether intestinal microbiota, serum metabolic and inflammatory profiles differ in relation to the degree of overweight status in pregnant women. METHODS: This study investigated 52 overweight and 47 obese pregnant women in early pregnancy...
December 27, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29338732/transcriptional-profile-and-epstein-barr-virus-infection-status-of-laser-cut-immune-infiltrates-from-the-brain-of-patients-with-progressive-multiple-sclerosis
#13
Caterina Veroni, Barbara Serafini, Barbara Rosicarelli, Corrado Fagnani, Francesca Aloisi
BACKGROUND: It is debated whether multiple sclerosis (MS) might result from an immunopathological response toward an active Epstein-Barr virus (EBV) infection brought into the central nervous system (CNS) by immigrating B cells. Based on this model, a relationship should exist between the local immune milieu and EBV infection status in the MS brain. To test this hypothesis, we analyzed expression of viral and cellular genes in brain-infiltrating immune cells. METHODS: Twenty-three postmortem snap-frozen brain tissue blocks from 11 patients with progressive MS were selected based on good RNA quality and prominent immune cell infiltration...
January 16, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29338592/whole-genome-sequencing-characterization-of-bloodstream-infection-causing-hypervirulent-klebsiella-pneumoniae-of-capsular-serotype-k2-and-st374
#14
Xiaoli Wang, Yingzhou Xie, Gang Li, Jialin Liu, Xiaobin Li, Lijun Tian, Jingyong Sun, Hong-Yu Ou, Hongping Qu
Hypervirulent K. pneumoniae variants (hvKP) have been increasingly reported worldwide, causing metastasis of severe infections such as liver abscesses and bacteremia. The capsular serotype K2 hvKP strains show diverse multi-locus sequence types (MLSTs), but with limited genetics and virulence information. In this study, we report a hypermucoviscous K. pneumoniae strain, RJF293, isolated from a human bloodstream sample in a Chinese hospital. It caused a metastatic infection and fatal septic shock in a critical patient...
January 17, 2018: Virulence
https://www.readbyqxmd.com/read/29338105/multiple-sclerosis-long-term-outcomes-in-ethnic-minorities-with-ms-analysis-of-a-uk-population-based-registry
#15
Meshari O Alsaeed, Katharine E Harding, Owain H Williams, Mark D Willis, James Hrastelj, Emma C Tallantyre, Fady G Joseph, Mark Wardle, Trevor P Pickersgill, Neil P Robertson
BACKGROUND: Multiple sclerosis (MS) is most frequent in Caucasian populations. However, studies of MS in other ethnic groups may offer unique insights into genetic and environmental influences on disease, and data on long-term outcomes in these patients is limited. We have investigated clinical features and time to disability milestones in ethnic minority (EM) patients with MS in a UK population and made comparisons to a Caucasian cohort from the same region. METHODS: 1949 MS patients (1866 Caucasian, 83 EM) were identified from a regional disease registry...
January 16, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29338057/rna-sequencing-analysis-of-fungi-induced-transcripts-from-the-bamboo-wireworm-melanotus-cribricollis-coleoptera-elateridae-larvae
#16
Bi-Huan Ye, Ya-Bo Zhang, Jin-Ping Shu, Hong Wu, Hao-Jie Wang
Larvae of Melanotus cribricollis, feed on bamboo shoots and roots, causing serious damage to bamboo in Southern China. However, there is currently no effective control measure to limit the population of this underground pest. Previously, a new entomopathogenic fungal strain isolated from M. cribricollis larvae cadavers named Metarhizium pingshaense WP08 showed high pathogenic efficacy indoors, indicated that the fungus could be used as a bio-control measure. So far, the genetic backgrounds of both M. cribricollis and M...
2018: PloS One
https://www.readbyqxmd.com/read/29337279/suprathreshold-fiber-cluster-statistics-leveraging-white-matter-geometry-to-enhance-tractography-statistical-analysis
#17
Fan Zhang, Weining Wu, Lipeng Ning, Gloria McAnulty, Deborah Waber, Borjan Gagoski, Kiera Sarill, Hesham M Hamoda, Yang Song, Weidong Cai, Yogesh Rathi, Lauren J O'Donnell
This work presents a suprathreshold fiber cluster (STFC) method that leverages the whole brain fiber geometry to enhance statistical group difference analyses. The proposed method consists of 1) a well-established study-specific data-driven tractography parcellation to obtain white matter tract parcels and 2) a newly proposed nonparametric, permutation-test-based STFC method to identify significant differences between study populations. The basic idea of our method is that a white matter parcel's neighborhood (nearby parcels with similar white matter anatomy) can support the parcel's statistical significance when correcting for multiple comparisons...
January 11, 2018: NeuroImage
https://www.readbyqxmd.com/read/29336311/comparison-of-the-effects-of-p2y12-receptor-antagonists-on-platelet-function-and-clinical-outcomes-in-patients-undergoing-primary-pci-a-substudy-of-the-heat-ppci-trial
#18
Adeel Shahzad, Vikram Khanna, Ian Kemp, Matthew Shaw, Christine Mars, Robert Cooper, Keith Wilson, Nick Curzen, Rod H Stables
AIMS: The HEAT-PPCI trial compared bivalirudin and unfractionated heparin in patients undergoing Primary PCI. We report pre-specified, secondary analyses comparing the effects of P2Y12 inhibiting agents on platelet reactivity and clinical events. METHODS AND RESULTS: All patients received pre-procedural oral anti-platelet therapy. During the early stages of the trial, the P2Y12 inhibitor of choice was prasugrel with some use of clopidogrel. Later, routine therapy switched to ticagrelor...
January 16, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29336216/sulfamethoxazole-removal-in-membrane-photocatalytic-reactor-system-experimentation-and-modelling
#19
Raju C Asha, M S Priyanka Yadav, Mathava Kumar
In this study, the efficacy of membrane-photocatalytic reactor (MPR) in sulfamethoxazole (SMX) removal was explored at a fixed initial SMX concentration, i.e. 100 mg/L. A supported catalyst, i.e. TiO2 on granular activated carbon (GAC-TiO2), was used for MPR experiments. The SMX removal efficiency of the MPR was investigated under a range of hydraulic retention time (i.e. HRT from 51 ∼ 152.5 min) and TiO2 catalyst dosage (55 ∼ 550 mg/L). A maximum SMX removal efficiency of 83.6% was observed under 220 mg/L catalyst dosage and 80 min HRT...
January 16, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29336199/the-rust-fungus-melampsora-larici-populina-expresses-a-conserved-genetic-program-and-distinct-sets-of-secreted-protein-genes-during-infection-of-its-two-host-plants-larch-and-poplar
#20
Cécile Lorrain, Clémence Marchal, Stéphane Hacquard, Christine Delaruelle, Jérémy Pétrowski, Benjamin Petre, Arnaud Hecker, Pascal Frey, Sebastien Duplessis
Mechanisms required for broad spectrum or specific host colonization of plant parasites are poorly understood. As a perfect illustration, heteroecious rust fungi require two alternate host plants to complete their life cycles. Melampsora larici populina infects two taxonomically unrelated plants, larch on which sexual reproduction is achieved and poplar on which clonal multiplication occurs leading to severe epidemics in plantations. We applied deep RNA sequencing to three key developmental stages of M. larici-populina infection on larch: basidia, pycnia and aecia; and we performed comparative transcriptomics of infection on poplar and larch hosts using available expression data...
January 16, 2018: Molecular Plant-microbe Interactions: MPMI
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