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https://www.readbyqxmd.com/read/28227982/analysis-of-the-sleep-eeg-in-the-complexity-domain
#1
Sara Mariani, Ana F T Borges, Teresa Henriques, Robert J Thomas, Samuel J Leistedt, Paul Linkowski, Jean-Pol Lanquart, Ary L Goldberger, Madalena D Costa, Sara Mariani, Ana F T Borges, Teresa Henriques, Robert J Thomas, Samuel J Leistedt, Paul Linkowski, Jean-Pol Lanquart, Ary L Goldberger, Madalena D Costa, Teresa Henriques, Robert J Thomas, Madalena D Costa, Samuel J Leistedt, Paul Linkowski, Ary L Goldberger, Jean-Pol Lanquart, Sara Mariani, Ana F T Borges
Conventional sleep analysis relies primarily on electroencephalogram (EEG) waveform features assessed in concert with eye movements, respiration and muscle tone. We explore a complementary "complexity domain" approach based on multiscale entropy (MSE) analysis of EEG signals and discuss its relationships to standard sleep analysis and to that based on electrocardiogram (ECG)-derived cardiopulmonary coupling (CPC). We observe a progressive decrease in complexity associated with decreased arousability, as measured by both conventional sleep scoring and CPC analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227754/brain-heart-linear-and-nonlinear-dynamics-during-visual-emotional-elicitation-in-healthy-subjects
#2
G Valenza, A Greco, C Gentili, A Lanata, N Toschi, R Barbieri, L Sebastiani, D Menicucci, A Gemignani, E P Scilingo, G Valenza, A Greco, C Gentili, A Lanata, N Toschi, R Barbieri, L Sebastiani, D Menicucci, A Gemignani, E P Scilingo, A Lanata, A Gemignani, E P Scilingo, A Greco, D Menicucci, L Sebastiani, C Gentili, N Toschi, R Barbieri, G Valenza
This study investigates brain-heart dynamics during visual emotional elicitation in healthy subjects through linear and nonlinear coupling measures of EEG spectrogram and instantaneous heart rate estimates. To this extent, affective pictures including different combinations of arousal and valence levels, gathered from the International Affective Picture System, were administered to twenty-two healthy subjects. Time-varying maps of cortical activation were obtained through EEG spectral analysis, whereas the associated instantaneous heartbeat dynamics was estimated using inhomogeneous point-process linear models...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227516/identification-of-emotion-associated-brain-functional-network-with-phase-locking-value
#3
V Gonuguntla, R Mallipeddi, K C Veluvolu, V Gonuguntla, R Mallipeddi, K C Veluvolu, V Gonuguntla, K C Veluvolu, R Mallipeddi
Recognition of discriminative brain functional network pattern and regions corresponding to emotions are important in understanding the neuron functional network underlying the human emotion process. Emotion models mapping onto brain is possible with the help of emotion-specific network patterns and its corresponding brain regions. This paper presents a method to identify emotion related functional connectivity pattern and their distinctive associated regions using EEG phase synchrony (phase locking value (PLV)) connectivity analysis...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227423/dynamic-mapping-of-ventricular-function-from-cardiovascular-magnetic-resonance-imaging
#4
Maria Panayiotou, Peter Mountney, Alexander Brost, Daniel Toth, Tom Jackson, Jonathan M Behar, Christopher A Rinaldi, R James Housden, Kawal S Rhode, Maria Panayiotou, Peter Mountney, Alexander Brost, Daniel Toth, Tom Jackson, Jonathan M Behar, Christopher A Rinaldi, R James Housden, Kawal S Rhode, Alexander Brost, Tom Jackson, Maria Panayiotou, Christopher A Rinaldi, Jonathan M Behar, R James Housden, Kawal S Rhode, Daniel Toth, Peter Mountney
Heart failure is associated with substantial mortality and morbidity and remains the most common diagnosis in older patients. Based on experimental electrophysiologic studies, cardiac resynchronization therapy (CRT) for heart failure results in a maximum resynchronization effect when applied to the most delayed left ventricular (LV) site. Current clinical practice is to identify the optimal site using separate visualisation of scar and activation information. These must be mentally mapped into 3D, which is challenging and time-consuming for the electrophysiologist...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227395/impaired-episodic-memory-network-in-subjects-at-high-risk-for-alzheimer-s-disease
#5
Yafeng Zhan, Jianhua Ma, Kaibin Xu, Yanhui Ding, Yue Cui, Zhengyi Yang, Yong Liu, Yafeng Zhan, Jianhua Ma, Kaibin Xu, Yanhui Ding, Yue Cui, Zhengyi Yang, Yong Liu, Yanhui Ding, Kaibin Xu, Yue Cui, Yafeng Zhan, Jianhua Ma, Zhengyi Yang, Yong Liu
Episodic memory dysfunction is one of the hallmark symptoms of Alzheimer's disease (AD) and mild cognitive impairment (MCI). This cognitive impairment may be related to abnormal brain structure and activity. Functional connectivity mapping (FCM) analysis provides a powerful tool for exploring the topology of human brain function using magnetic resonance imaging (MRI). Thus, it would be advantageous to investigate the changes in functional connectivity within the episodic memory network in a longitudinal MCI dataset, as it may be helpful in identifying a potential marker of disease progress...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226695/creation-of-a-whole-brain-short-association-bundle-atlas-using-a-hybrid-approach
#6
M Guevara, C Roman, J Houenou, D Duclap, C Poupon, J-F Mangin, P Guevara, M Guevara, C Roman, J Houenou, D Duclap, C Poupon, J-F Mangin, P Guevara, J-F Mangin, C Roman, D Duclap, C Poupon, J Houenou, P Guevara, M Guevara
The Human brain connection map is far from being complete. In particular the study of the superficial white matter (SWM) is an unachieved task. Its description is essential for the understanding of human brain function and the study of pathogenesis triggered by abnormal connectivity. In this work we expanded a previously developed method for the automatic creation of a whole brain SWM bundle atlas. The method is based on a hybrid approach. First a cortical parcellation is used to extract fibers connecting two regions...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226630/gaussian-process-dynamical-models-for-multimodal-affect-recognition
#7
Hernan F Garcia, Mauricio A Alvarez, Alvaro A Orozco, Hernan F Garcia, Mauricio A Alvarez, Alvaro A Orozco, Mauricio A Alvarez, Alvaro A Orozco, Hernan F Garcia
Affective computing systems has a great potential in applications for biofeedback systems and cognitive conductual therapies. Here, by analyzing the physiological behavior of a given subject, we can infer the affective state of an emotional process. Since, emotions can be modeled as dynamic manifestations of these signals, a continuous analysis in the valence/arousal space, brings more information of the affective state related to an emotional process. In this paper we propose a method for dynamic affect recognition from multimodal physiological signals...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226460/pro-arrhythmic-effect-of-heart-rate-variability-during-periodic-pacing
#8
Kanchan Kulkarni, Steven W Lee, Elena G Tolkacheva, Kanchan Kulkarni, Steven W Lee, Elena G Tolkacheva, Elena G Tolkacheva, Steven W Lee, Kanchan Kulkarni
Clinically, healthy hearts have been associated with a high ventricular heart rate variability (HRV) while diseased hearts have been known to exhibit low ventricular HRV. Hence, low HRV is suggested to be a marker of cardiac ventricular arrhythmias. Over the past few years, there has been considerable amount of interest in incorporating HRV in pacing to emulate healthy heart conditions and re-stabilize the electrical activity in diseased hearts. Recently, we used single cell numerical simulations to demonstrate that HRV incorporated into periodic pacing promotes alternans formation and thus, can be pro-arrhythmic...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226415/topographical-pressure-pain-sensitivity-maps-of-the-temporalis-muscle-in-people-with-frequent-episodic-and-chronic-tension-type-headache
#9
María Palacios Ceña, Matteo Castaldo, Kelun Wang, Pascal Madeleine, Ángel L Guerrero, Lars Arendt-Nielsen, César Fernández de Las Peñas
BACKGROUND: Previous pilot studies suggest the presence of heterogeneous sensitivity to pressure in primary headaches without considering the frequency of headache episodes. OBJECTIVE: To investigate the differences in topographical pressure pain sensitivity maps in the temporalis muscle between individuals with frequent episodic (FETTH) and chronic (CTTH) tension-type headache by controlling the presence of anxiety and depression. METHODS: Pressure pain thresholds (PPTs) were assessed bilaterally from 9 points distributed over the temporalis muscle (3 points in the anterior portion, 3 in the middle portion, and the remaining 3 in the posterior portion of the muscle belly) in 113 patients with FETTH and 91 with CTTH in a blinded design...
February 22, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28226236/new-strategies-and-tools-in-quantitative-genetics-how-to-go-from-the-phenotype-to-the-genotype
#10
C Bazakos, M Hanemian, C Trontin, J M Jiménez-Gómez, O Loudet
Quantitative genetics has a long history in plants: It has been used to study specific biological processes, identify the factors important for trait evolution, and breed new crop varieties. These classical approaches to quantitative trait locus mapping have naturally improved with technology. In this review, we show how quantitative genetics has evolved recently in plants and how new developments in phenotyping, population generation, sequencing, gene manipulation, and statistics are rejuvenating both the classical linkage mapping approaches (for example, through nested association mapping) as well as the more recently developed genome-wide association studies...
February 6, 2017: Annual Review of Plant Biology
https://www.readbyqxmd.com/read/28225909/tuberculosis-as-a-marker-of-inequities-in-the-context-of-socio-spatial-transformation
#11
Alexandre San Pedro, Gerusa Gibson, Jefferson Pereira Caldas Dos Santos, Luciano Medeiros de Toledo, Paulo Chagastelles Sabroza, Rosely Magalhães de Oliveira
OBJECTIVE: This study aims to analyze the association between the incidence of tuberculosis and different socioeconomic indicators in a territory of intense transformation of the urban space. METHODS: This is an ecological study, whose analysis units were the neighborhoods of the city of Itaboraí, state of Rio de Janeiro, Brazil. The data have been analyzed by generalized linear models. The response variable was incidence of tuberculosis from 2006 to 2011. The independent variables were the socio-demographic indicators...
February 16, 2017: Revista de Saúde Pública
https://www.readbyqxmd.com/read/28225156/presurgical-language-localization-with-visual-naming-associated-ecog-high-gamma-modulation-in-pediatric-drug-resistant-epilepsy
#12
Ravindra Arya, J Adam Wilson, Hisako Fujiwara, Leonid Rozhkov, James L Leach, Anna W Byars, Hansel M Greiner, Jennifer Vannest, Jason Buroker, Griffin Milsap, Brian Ervin, Ali Minai, Paul S Horn, Katherine D Holland, Francesco T Mangano, Nathan E Crone, Douglas F Rose
OBJECTIVE: This prospective study compared presurgical language localization with visual naming-associated high-γ modulation (HGM) and conventional electrical cortical stimulation (ECS) in children with intracranial electrodes. METHODS: Patients with drug-resistant epilepsy who were undergoing intracranial monitoring were included if able to name pictures. Electrocorticography (ECoG) signals were recorded during picture naming (overt and covert) and quiet baseline...
February 22, 2017: Epilepsia
https://www.readbyqxmd.com/read/28224024/topological-and-functional-analysis-of-nonalcoholic-steatohepatitis-through-protein-interaction-mapping
#13
Hamid Asadzadeh-Aghdaee, Vahid Mansouri, Ali Asghar Peyvandi, Fathollah Moztarzadeh, Farshad Okhovatian, Farhad Lahmi, Reza Vafaee, Mohammad Reza Zali
AIM: The corresponding proteins are important for network mapping since the interaction analysis can provide a new interpretation about disease underlying mechanisms as the aim of this study. BACKGROUD: Nonalcoholic steatohepatitis (NASH) is one of the main causes of liver disease in the world. It has been known with many susceptible proteins that play essential role in its pathogenesis. METHODS: In this paper, protein-protein interaction (PPI) network analysis of fatty liver disease retrieved from STRING db by the application of Cytoscape Software...
December 2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28223989/ufgt-the-key-enzyme-associated-with-the-petals-variegation-in-japanese-apricot
#14
Xinxin Wu, Qinghua Gong, Xiaopeng Ni, Yong Zhou, Zhihong Gao
Japanese apricot (Prunus mume Sieb.et Zucc.) is an important ornamental plant in China. One of the traits of petals color variegation is attractive, but its formation mechanism is unclear. In our study, RNA-seq technology was employed to characterize the transcriptome response to the mutation of "Fuban Tiaozhi" associated with petals variegation in Japanese apricot. As a result, 4,579,040 (white-flowered, WF) and 7,269,883 (red-flowered, RF) reads were mapped to P. persica genes, while 5,006,676 (WF) and 7,907,436 (RF) were mapped to P...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28223984/plasmodium-vivax-cell-traversal-protein-for-ookinetes-and-sporozoites-naturally-acquired-humoral-immune-response-and-b-cell-epitope-mapping-in-brazilian-amazon-inhabitants
#15
Rodrigo Nunes Rodrigues-da-Silva, Isabela Ferreira Soares, Cesar Lopez-Camacho, João Hermínio Martins da Silva, Daiana de Souza Perce-da-Silva, Antônio Têva, Antônia Maria Ramos Franco, Francimeire Gomes Pinheiro, Lana Bitencourt Chaves, Lilian Rose Pratt-Riccio, Arturo Reyes-Sandoval, Dalma Maria Banic, Josué da Costa Lima-Junior
The cell-traversal protein for ookinetes and sporozoites (CelTOS), a highly conserved antigen involved in sporozoite motility, plays an important role in the traversal of host cells during the preerythrocytic stage of Plasmodium species. Recently, it has been considered an alternative target when designing novel antimalarial vaccines against Plasmodium falciparum. However, the potential of Plasmodium vivax CelTOS as a vaccine target is yet to be explored. This study evaluated the naturally acquired immune response against a recombinant P...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28223811/risk-assessment-of-aggressive-behavior-in-chinese-patients-with-schizophrenia-by-fmri-and-comt-gene
#16
Xiaoli Tang, Jun Jin, Yi Tang, Jinbo Cao, Junjie Huang
BACKGROUND: Blood-oxygen-level dependent functional magnetic resonance imaging (BOLD-fMRI) maps cerebral activity by the hemodynamic response. Catechol-O-methyltransferase (COMT) gene is involved in the metabolism of dopamine. It is reported that both of these can be used to assess the aggression risk in patients with schizophrenia. However, these methods to assess the aggression risk patients with schizophrenia have not been established in China. Therefore, we deliver here a systematic review and meta-analysis based on the studies dealing with Chinese patients...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28223457/the-source-and-evolutionary-history-of-a-microbial-contaminant-identified-through-soil-metagenomic-analysis
#17
Matthew R Olm, Cristina N Butterfield, Alex Copeland, T Christian Boles, Brian C Thomas, Jillian F Banfield
In this study, strain-resolved metagenomics was used to solve a mystery. A 6.4-Mbp complete closed genome was recovered from a soil metagenome and found to be astonishingly similar to that of Delftia acidovorans SPH-1, which was isolated in Germany a decade ago. It was suspected that this organism was not native to the soil sample because it lacked the diversity that is characteristic of other soil organisms; this suspicion was confirmed when PCR testing failed to detect the bacterium in the original soil samples...
February 21, 2017: MBio
https://www.readbyqxmd.com/read/28223350/mapping-atheroprotective-functions-and-related-proteins-lipoproteins-in-size-fractionated-human-plasma
#18
Debi K Swertfeger, Hailong Li, Sandra Rebholz, Xiaoting Zhu, Amy S Shah, W Sean Davidson, L Jason Lu
HDL has been shown to possess a variety of cardio-protective functions, including removal of excess cholesterol from the periphery, and inhibition of lipoprotein oxidation. It has been proposed that various HDL subparticles exist, each with distinct protein and lipid compositions, which may be responsible for HDL's many functions. We hypothesized that HDL functions will co-migrate with the operational lipoprotein subspecies when separated by gel filtration chromatography. Plasma from 10 healthy male donors was fractionated and the protein composition of the phospholipid containing fractions was analyzed by mass spectrometry (MS)...
February 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28223262/factors-associated-with-dropout-during-recruitment-and-follow-up-periods-of-a-mhealth-based-randomized-controlled-trial-for-mobile-net-to-encourage-treatment-adherence-for-people-with-serious-mental-health-problems
#19
Kati Anneli Kannisto, Joonas Korhonen, Clive E Adams, Marita Hannele Koivunen, Tero Vahlberg, Maritta Anneli Välimäki
BACKGROUND: Clinical trials are the gold standard of evidence-based practice. Still many papers inadequately report methodology in randomized controlled trials (RCTs), particularly for mHealth interventions for people with serious mental health problems. To ensure robust enough evidence, it is important to understand which study phases are the most vulnerable in the field of mental health care. OBJECTIVE: We mapped the recruitment and the trial follow-up periods of participants to provide a picture of the dropout predictors from a mHealth-based trial...
February 21, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28222992/a-geometric-reappraisal-of-proximal-landing-zones-for-thoracic-endovascular-aortic-repair-according-to-aortic-arch-types
#20
Massimiliano M Marrocco-Trischitta, Hector W de Beaufort, Francesco Secchi, Theodorus M van Bakel, Marco Ranucci, Joost A van Herwaarden, Frans L Moll, Santi Trimarchi
OBJECTIVE: This study assessed whether the additional use of the aortic arch classification in type I, II, and III may complement Ishimaru's aortic arch map and provide valuable information on the geometry and suitability of proximal landing zones for thoracic endovascular aortic repair. METHODS: Anonymized thoracic computed tomography scans of healthy aortas were reviewed and stratified according to the aortic arch classification, and 20 of each type of arch were selected...
February 17, 2017: Journal of Vascular Surgery
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