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https://www.readbyqxmd.com/read/27914171/clinical-feasibility-of-brain-computer-interface-based-on-steady-state-visual-evoked-potential-in-patients-with-locked-in-syndrome-case-studies
#1
Han-Jeong Hwang, Chang-Hee Han, Jeong-Hwan Lim, Yong-Wook Kim, Soo-In Choi, Kwang-Ok An, Jun-Hak Lee, Ho-Seung Cha, Seung Hyun Kim, Chang-Hwan Im
Although the feasibility of brain-computer interface (BCI) systems based on steady-state visual evoked potential (SSVEP) has been extensively investigated, only a few studies have evaluated its clinical feasibility in patients with locked-in syndrome (LIS), who are the main targets of BCI technology. The main objective of this case report was to share our experiences of SSVEP-based BCI experiments involving five patients with LIS, thereby providing researchers with useful information that can potentially help them to design BCI experiments for patients with LIS...
December 3, 2016: Psychophysiology
https://www.readbyqxmd.com/read/27914003/n-terminal-pro-b-type-natriuretic-peptide-levels-are-linked-with-modified-child-pugh-classification-in-patients-with-nonalcoholic-cirrhosis-nt-probnp-and-liver-cirrhosis
#2
Abdulbaki Kumbasar, Mehtap Navdar, Esra Ataoglu, Isil Uzunhasan, Kadir Ergen, Sule Poturoglu, Filiz Basinoglu, Fatih Yilmaz, Mustafa Yenigun, Fuat Sar, Ozgur Tanriverdi
Excess N-terminal pro-brain natriuretic peptide secretion has been linked to cirrhosis in previously studies. The relationship of plasma N-terminal pro-brain natriuretic peptide levels and cardiac dysfunction determined by echocardiography were investigated in patients with nonalcoholic cirrhosis and a control group of chronic hepatitis. This study was designed as a cross-sectional study. Thirty-two men and thirty-three women who gave informed consent who were followed-up for chronic liver failure were enrolled...
December 2, 2016: Cell Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27913986/establishing-clinical-meaning-and-defining-important-differences-for-patient-reported-outcomes-measurement-information-system-promis-%C3%A2-measures-in-juvenile-idiopathic-arthritis-using-standard-setting-with-patients-parents-and-providers
#3
Esi M Morgan, Constance A Mara, Bin Huang, Kimberly Barnett, Adam C Carle, Jennifer E Farrell, Karon F Cook
BACKGROUND: Patient-Reported Outcomes Measurement Information System (PROMIS) measures are used increasingly in clinical care. However, for juvenile idiopathic arthritis (JIA), scores lack a framework for interpretation of clinical severity, and minimally important differences (MID) have not been established, which are necessary to evaluate the importance of change. METHODS: We identified clinical severity thresholds for pediatric PROMIS measures of mobility, upper extremity function (UE), fatigue, and pain interference working with adolescents with JIA, parents of JIA patients, and clinicians, using a standard setting methodology modified from educational testing...
December 2, 2016: Quality of Life Research
https://www.readbyqxmd.com/read/27913849/targeted-next-generation-sequencing-reveals-mody-in-up-to-6-5-of-antibody-negative-diabetes-cases-listed-in-the-norwegian-childhood-diabetes-registry
#4
Bente B Johansson, Henrik U Irgens, Janne Molnes, Paweł Sztromwasser, Ingvild Aukrust, Petur B Juliusson, Oddmund Søvik, Shawn Levy, Torild Skrivarhaug, Geir Joner, Anders Molven, Stefan Johansson, Pål R Njølstad
AIMS/HYPOTHESIS: MODY can be wrongly diagnosed as type 1 diabetes in children. We aimed to find the prevalence of MODY in a nationwide population-based registry of childhood diabetes. METHODS: Using next-generation sequencing, we screened the HNF1A, HNF4A, HNF1B, GCK and INS genes in all 469 children (12.1%) negative for both GAD and IA-2 autoantibodies and 469 antibody-positive matched controls selected from the Norwegian Childhood Diabetes Registry (3882 children)...
December 2, 2016: Diabetologia
https://www.readbyqxmd.com/read/27913833/tight-repulsion-linkage-between-sr36-and-sr39-was-revealed-by-genetic-cytogenetic-and-molecular-analyses
#5
Bosco Chemayek, Urmil K Bansal, Naeela Qureshi, Peng Zhang, William W Wagoire, Harbans S Bariana
The shortening of Aegilops speltoides segment did not facilitate recombination between stem rust resistance genes Sr36 and Sr39 . Robustness of marker rwgs28 for marker-assisted selection of Sr39 was demonstrated. Stem rust resistance genes Sr39 and Sr36 were transferred from Aegilops speltoides and Triticum timopheevii, respectively, to chromosome 2B of wheat. Genetic stocks RL6082 and RWG1 carrying Sr39 on a large and a shortened Ae. speltoides segments, respectively, and the Sr36-carrying Australian wheat cultivar Cook were used in this study...
December 2, 2016: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/27913780/multifocal-polymorphous-hemangioendothelioma-of-the-liver-case-report-and-review-of-literature
#6
Siba El Hussein, Yumna Omarzai
We report a case of polymorphous hemangioendothelioma, a rare vascular neoplasm, arising in the liver of a 51-year-old woman. Microscopically, this neoplasm is characterized by a polymorphous blend of solid, primitive vascular and angiomatous areas in variable proportions. Polymorphous hemangioendothelioma is considered to be an intermediate-grade vascular neoplasm. In most of the reported cases, its occurrence has been in lymph nodes, but a few cases have been found in extranodal sites such as the mediastinum, spinal cord, and liver...
December 2, 2016: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27913719/surgical-site-infections-in-major-head-and-neck-surgeries-involving-pedicled-flap-reconstruction
#7
Neerav Goyal, Bharat B Yarlagadda, Daniel G Deschler, Kevin S Emerick, Derrick T Lin, Debbie L Rich, James W Rocco, Marlene L Durand
OBJECTIVE: To evaluate surgical site infections (SSI) after pedicled reconstruction in head and neck surgery. METHODS: Records of patients with pedicled flap reconstructions between 2009 and 2014 at Massachusetts Eye and Ear were reviewed. Onset of SSI or fistula ≤30 days postoperatively was noted. A free flap cohort was reviewed for comparison. RESULTS: Two hundred and eight pedicled reconstructions were performed for cancer (83%), osteoradionecrosis (7%), and other reasons (10%)...
January 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/27913598/describing-visible-acute-injuries-development-of-a-comprehensive-taxonomy-for-research-and-practice
#8
Tony Rosen, Christopher Reisig, Veronica M LoFaso, Elizabeth M Bloemen, Sunday Clark, Thomas J McCarthy, Estomih P Mtui, Neal E Flomenbaum, Mark S Lachs
BACKGROUND: Little literature exists classifying and comprehensively describing intentional and unintentional acute injuries, which would be valuable for research and practice. In preparation for a study of injury patterns in elder abuse, our goal was to develop a comprehensive taxonomy of relevant types and characteristics of visible acute injuries and evaluate it in geriatric patients. METHODS: We conducted an exhaustive review of the medical and forensic literature focusing on injury types, descriptions, patterns and analyses...
December 2, 2016: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/27913526/update-from-the-latest-who-classification-of-mpns-a-user-s-manual
#9
Francesco Passamonti, Margherita Maffioli
The 2016 multiparameter World Health Organization (WHO) classification for Philadelphia-negative myeloproliferative neoplasms (MPNs) integrates clinical features, morphology, and genetic data to diagnose polycythemia vera (PV), essential thrombocythemia (ET), and primary myelofibrosis (PMF). The main novelties are: (1) the reduction of the hemoglobin (Hb) level threshold to diagnose PV, now established at 16.5 g/dL for men and 16 g/dL for women (based on the identification of MPN patients with PV-consistent bone marrow [BM] features and a Hb level lower than that established in the 2008 WHO classification for PV); (2) the recognition of prefibrotic/early PMF, distinguishable from ET on the basis of BM morphology, an entity having a higher tendency to develop overt myelofibrosis or acute leukemia, and characterized by inferior survival; (3) the central role of BM morphology in the diagnosis of ET, prefibrotic/early PMF, PMF, and PV with borderline Hb values; megakaryocyte number and morphology (typical in ET, atypical in both PMF forms) accompanied by a new distinction of reticulin fibrosis grade in PMF (grade 1 in prefibrotic/early PMF and grade 2-3 in PMF) constitute diagnostic criteria; and (4) the inclusion of all mutually exclusive MPN driver mutations (JAK2, CALR, and MPL) as major diagnostic criteria in ET and PMF; 10% to 15% of these patients are triple negative, and in these cases the search for an additional clonal marker (eg, mutations in ASXL1, EZH2, TET2, IDH1/IDH2, SRSF2, and SF3B1) is warranted...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913502/mrd-in-aml-does-it-already-guide-therapy-decision-making
#10
Gert Ossenkoppele, Gerrit Jan Schuurhuis
Prognostic factors determined at diagnosis are predictive for outcome whereas achievement of morphological complete remission (CR) is still an important end point during treatment. Residual disease after therapy may reflect the sum of all diagnosis and postdiagnosis resistance mechanisms/factors; its measurement could hypothetically be very instrumental for guiding treatment. The possibility of defining residual disease (minimal residual disease [MRD]) far below the level of 5% blast cells is changing the landscape of risk classification...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913501/mutations-in-aml-prognostic-and-therapeutic-implications
#11
Courtney D DiNardo, Jorge E Cortes
Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy characterized by the proliferation and aberrant differentiation of immature clonal myeloid cells. The prognosis of AML is variable, based on clinical features such as patient age, performance status, and comorbidities, as well as leukemia-specific genetic features including cytogenetics and molecular classification. The modern application of next-generation sequencing technology has uncovered marked heterogeneity and genomic complexity within AML, based on the presence or absence of cooperating mutations within functional categories such as epigenetic regulators, cell signaling and proliferation pathways, and master hematopoietic transcription factors...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913441/size-and-vitreomacular-attachment-of-primary-full-thickness-macular-holes
#12
Elise Philippakis, Franck Amouyal, Aude Couturier, Elise Boulanger-Scemama, Alain Gaudric, Ramin Tadayoni
PURPOSE: To study the relationship between the size of primary full-thickness macular hole (MH) and the vitreomacular attachment status. DESIGN: Single-centre retrospective observational case series. METHODS: The records of 100 consecutive eyes operated for primary full-thickness MH were retrospectively reviewed. The vitreous status and MH diameter were assessed on the preoperative optical coherence tomography scans. MH were classified depending on the presence or absence of vitreomacular traction (VMT) and their size as small (<250 µm), medium (250-400 µm) and large (>400 µm), as suggested in the International VMT Study Group Classification...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913407/whole-brain-analysis-reveals-increased-neuroanatomical-asymmetries-in-dementia-for-hippocampus-and-amygdala
#13
Christian Wachinger, David H Salat, Michael Weiner, Martin Reuter
Structural magnetic resonance imaging data are frequently analysed to reveal morphological changes of the human brain in dementia. Most contemporary imaging biomarkers are scalar values, such as the volume of a structure, and may miss the localized morphological variation of early presymptomatic disease progression. Neuroanatomical shape descriptors, however, can represent complex geometric information of individual anatomical regions and may demonstrate increased sensitivity in association studies. Yet, they remain largely unexplored...
December 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27913395/metabolomic-characterization-of-hepatocellular-carcinoma-in-patients-with-liver-cirrhosis-for-biomarker-discovery
#14
Cristina Di Poto, Alessia Ferrarini, Yi Zhao, Rency S Varghese, Chao Tu, Yiming Zuo, Minkun Wang, Mohammad R Nezami Ranjbar, Yue Luo, Chi Zhang, Chirag S Desai, Kirti Shetty, Mahlet G Tadesse, Habtom W Ressom
BACKGROUND: Metabolomics plays an important role in providing insight into the etiology and mechanisms of hepatocellular carcinoma (HCC). This is accomplished by a comprehensive analysis of patterns involved in metabolic alterations in human specimens. This study compares the levels of plasma metabolites in HCC cases versus cirrhotic patients and evaluates the ability of candidate metabolites in distinguishing the two groups. Also, it investigates the combined use of metabolites and clinical covariates for detection of HCC in patients with liver cirrhosis...
December 2, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27913376/axial-disease-in-psoriatic-arthritis-study-defining-the-clinical-and-radiographic-phenotype-of-psoriatic-spondyloarthritis
#15
Deepak R Jadon, Raj Sengupta, Alison Nightingale, Mark Lindsay, Eleanor Korendowych, Graham Robinson, Amelia Jobling, Gavin Shaddick, Jing Bi, Robert Winchester, Jon T Giles, Neil J McHugh
OBJECTIVES: To compare the prevalence, clinical and radiographic characteristics of psoriatic spondyloarthritis (PsSpA) in psoriatic arthritis (PsA), with ankylosing spondylitis (AS). METHODS: A prospective single-centre cross-sectional observational study recruited consecutive PsA and AS cases. Participants completed outcome measures, and underwent clinical examination, axial radiographic scoring and HLA-sequencing. Multivariable analyses are presented. RESULTS: The 402 enrolled cases (201 PsA, 201 AS; fulfilling classification criteria for respective conditions) were reclassified based upon radiographic axial disease and psoriasis, as: 118 PsSpA, 127 peripheral-only PsA (pPsA), and 157 AS without psoriasis (AS) cases...
December 2, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27913363/detecting-breathing-and-snoring-episodes-using-a-wireless-tracheal-sensor-a-feasibility-study
#16
Marcel Mlynczak, Ewa Migacz, Maciej Migacz, Wojciech Kukwa
OBJECTIVE: Sleep-disordered breathing is both a clinical and a social problem. This implies the need for convenient solutions to simplify screening and diagnosis. The aim of the study was to investigate the sensitivity and specificity of a novel wireless system in detecting breathing and snoring episodes during sleep. METHODS: A wireless acoustic sensor was elaborated and implemented. Segmentation (based on spectral thresholding and heuristics) and classification of all breathing episodes during recording were implemented through a mobile application...
November 29, 2016: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/27913357/introducing-a-stable-bootstrap-validation-framework-for-reliable-genomic-signature-extraction
#17
Nikolaos-Kosmas Chlis, Ekaterini S Bei, Michael Zervakis
The application of machine learning methods for the identification of candidate genes responsible for phenotypes of interest, such as cancer, is a major challenge in the field of bioinformatics. These lists of genes are often called genomic signatures and their linkage to phenotype associations may form a significant step in discovering the causation between genotypes and phenotypes. Traditional methods that produce genomic signatures from DNA Microarray data tend to extract significantly different lists under relatively small variations of the training data...
November 29, 2016: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/27913337/melanoma-classification-on-dermoscopy-images-using-a-neural-network-ensemble-model
#18
Feng-Ying Xie, Haidi Fan, Li Yang, Zhi-Guo Jiang, Ru-Song Meng, Alan Bovik
We develop a novel method for classifying melanocytic tumors as benign or malignant by the analysis of digital dermoscopy images. The algorithm follows three steps: first, lesions are extracted using a self-generating neural network (SGNN); second, features descriptive of tumor color, texture and border are extracted; and third, lesion objects are classified using a classifier based on a neural network ensemble model. In clinical situations, lesions occur that are too large to be entirely contained within the dermoscopy image...
December 1, 2016: IEEE Transactions on Medical Imaging
https://www.readbyqxmd.com/read/27913322/automatic-detection-and-classification-of-high-frequency-oscillations-in-depth-eeg-signals
#19
Nisrine Jrad, Amar Kachenoura, Isabelle Merlet, Fabrice Bartolomei, Anca Nica, Arnaud Biraben, Fabrice Wendling
GOAL: Interictal High Frequency Oscillations (HFOs [30-600 Hz]) have proven to be relevant biomarkers in epilepsy. In this paper, four categories of HFOs are considered: Gamma ([30- 80 Hz]), High-Gamma ([80-120 Hz]), Ripples ([120-250 Hz]) and Fast-Ripples ([250-600 Hz]). A universal detector of the four types of HFOs is proposed. It has the advantages of i) classifying HFOs, and thus being robust to inter- and intra-subject variability; ii) rejecting artefacts, thus being specific. METHODS: Gabor atoms are tuned to cover the physiological bands...
November 29, 2016: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/27913228/pd-l1-immunohistochemistry-assays-for-lung-cancer-results-from-phase-1-of-the-blueprint-pd-l1-ihc-assay-comparison-project
#20
Fred R Hirsch, Abigail McElhinny, Dave Stanforth, James Ranger-Moore, Malinka Jansson, Karina Kulangara, William Richardson, Penny Towne, Debra Hanks, Bharathi Vennapusa, Amita Mistry, Rasika Kalamegham, Steve Averbuch, James Novotny, Eric Rubin, Kenneth Emancipator, Ian McCaffery, J Andrew Williams, Jill Walker, John Longshore, Ming S Tsao, Keith M Kerr
BACKGROUND: The "Blueprint PD-L1 IHC Assay Comparison Project" is an industrial-academic collaborative partnership to provide information on the analytical and clinical comparability of four PD-L1 IHC assays used in clinical trials. METHODS: 39 NSCLC tumors were stained with four PD-L1 IHC assays (22C3, 28-8, SP 142 and SP 263) as used in the clinical trials. Three experts in interpreting their respective assays independently evaluated the percentages of tumor and immune cells staining positive at any intensity...
November 29, 2016: Journal of Thoracic Oncology
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