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https://www.readbyqxmd.com/read/27894839/relationship-of-p3b-single-trial-latencies-and-response-times-in-one-two-and-three-stimulus-oddball-tasks
#1
Matthew M Walsh, Glenn Gunzelmann, John R Anderson
The P300 is one of the most widely studied components of the human event-related potential. According to a longstanding view, the P300, and particularly its posterior subcomponent (i.e., the P3b), is driven by stimulus categorization. Whether the P3b relates to tactical processes involved in immediate responding or strategic processes that affect future behavior remains controversial, however. It is difficult to determine whether variability in P3b latencies relates to variability in response times because of limitations in the methods currently available to quantify the latency of the P3b during single trials...
November 25, 2016: Biological Psychology
https://www.readbyqxmd.com/read/27893491/role-of-low-molecular-weight-heparins-in-prevention-of-thromboembolic-complication-after-transarterial-chemoembolization-in-hepatocellular-carcinoma
#2
Osama Negm, Sabry Abou Saif, Mohamed El Gharib, Mohamed Yousef, Sherief Abd-Elsalam
BACKGROUND AND AIM: Portal vein thrombosis (PVT) is a common complication after transarterial chemoembolization (TACE) in hepatocellular carcinoma (HCC). This is the first clinical study to evaluate the role of low-molecular-weight heparins (LMWHs) with TACE in HCC for the prevention of thromboembolism complications (PVT). PATIENTS AND METHODS: This study was carried out on 40 patients with HCC requiring TACE who presented to the Tropical Medicine Department, Tanta University and Interventional Radiology Department of Ain-Shams University Hospitals starting from April 2015...
November 23, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/27890896/interventional-treatment-of-severe-portal-vein-thrombosis-after-living-donor-liver-transplantation
#3
Youichi Kawano, Satoru Murata, Nobuhiko Taniai, Masato Yoshioka, Atsushi Hirakata, Yoshiaki Mizuguchi, Tetsuya Shimizu, Tomohiro Kanda, Junji Ueda, Hideyuki Takada, Hiroshi Yoshida, Koho Akimaru, Shiro Onozawa, Shinichirou Kumita, Eiji Uchida
Portal vein thrombosis (PVT) is a rare complication of liver transplantation which can lead to graft failure and patient death. Treatment can be difficult, especially in cases of PVT from the intrahepatic portal vein to the proximal jejunal veins. A 55-year-old woman had undergone living-donor liver transplantation with splenectomy for end-stage liver cirrhosis due to hepatitis C with hepatocellular carcinoma. Ten months after transplantation, massive ascites and slight abdominal pain developed, and computed tomography revealed a PVT between the intrahepatic portal vein and the superior mesenteric vein...
2016: Journal of Nippon Medical School, Nippon Ika Daigaku Zasshi
https://www.readbyqxmd.com/read/27880998/recurrent-acute-portal-vein-thrombosis-in-liver-cirrhosis-treated-by-rivaroxaban
#4
Hyeyoung Yang, Seo Ree Kim, Myeong Jun Song
Cirrhosis can occur with the development of portal vein thrombosis (PVT). PVT may aggravate portal hypertension, and it can lead to hepatic decompensation. The international guideline recommends for anticoagulation treatment to be maintained for at least 3 months in all patients with acute PVT. Low-molecular-weight-heparin and changing to warfarin is the usual anticoagulation treatment. However, warfarin therapy is problematic due to a narrow therapeutic window and the requirement for frequent dose adjustment, which has prompted the development of novel oral anticoagulants for overcoming these problems...
November 25, 2016: Clinical and Molecular Hepatology
https://www.readbyqxmd.com/read/27880991/vascular-complications-in-living-donor-liver-transplantation-at-a-high-volume-centre-evolving-protocols-and-trends-observed-over-10-years
#5
A R Shiraz, M A Nayeem, S Agarwal, N Goyal, S Gupta
Vascular complications continue to have devastating effect; although their nature, incidence and outcome might have actually changed with increasing experience and proficiency in high volume centers. Aim was to analyze the trends observed in vascular complications with changing protocols in adult and pediatric- living donor liver transplantation (A-LDLT and P-LDLT) over 10 years in two time frames in terms of nature, incidence and outcome. It is a retrospective analysis of 391 (Group I= Jan. 2006- Dec.2010) and 741 (Group II= Jan...
November 23, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27868260/an-experimental-study-of-adolescent-sleep-restriction-during-a-simulated-school-week-changes-in-phase-sleep-staging-performance-and-sleepiness
#6
Alex Agostini, Mary A Carskadon, Jillian Dorrian, Scott Coussens, Michelle A Short
This laboratory study investigated the impact of restricted sleep during a simulated school week on circadian phase, sleep stages and daytime functioning. Changes were examined across and within days and during a simulated weekend recovery. Participants were 12 healthy secondary school students (six male) aged 15-17 years [mean = 16.1 years, standard deviation (SD) = 0.9]. After 2 nights with 10 h (21:30-07:30 hours), time in bed was restricted to 5 h for 5 nights (02:30-07:30 hours), then returned to 10 h time in bed for 2 nights (21:30-07:30 hours)...
November 21, 2016: Journal of Sleep Research
https://www.readbyqxmd.com/read/27865775/epidemiology-and-outcomes-from-out-of-hospital-cardiac-arrests-in-england
#7
Claire Hawkes, Scott Booth, Chen Ji, Samantha J Brace-McDonnell, Andrew Whittington, James Mapstone, Matthew W Cooke, Charles D Deakin, Chris P Gale, Rachael Fothergill, Jerry P Nolan, Nigel Rees, Jasmeet Soar, A Niroshan Siriwardena, Terry P Brown, Gavin D Perkins
INTRODUCTION: This study reports the epidemiology and outcomes from out-of-hospital cardiac arrest (OHCA) in England during 2014. METHODS: Prospective observational study from the national OHCA registry. The incidence, demographic and outcomes of patients who were treated for an OHCA between 1st January 2014 and 31st December 2014 in 10 English ambulance service (EMS) regions, serving a population of almost 54 million, are reported in accordance with Utstein recommendations...
November 17, 2016: Resuscitation
https://www.readbyqxmd.com/read/27837375/amsterdam-positional-osa-classification-the-aasm-2012-recommended-hypopnoea-criteria-increases-the-number-of-positional-therapy-candidates
#8
Brett Duce, Antti Kulkas, Christian Langton, Juha Töyräs, Craig Hukins
PURPOSE: This study examined the effect of hypopnoea criteria on the prevalence of positional obstructive sleep apnoea (pOSA) identified under the Amsterdam Positional OSA Classification (APOC) system. METHODS: Three hundred three consecutive patients undertaking polysomnography (PSG) for the suspicion of OSA were included in this retrospective investigation. PSGs were scored using both the 2007 American Academy of Sleep Medicine (AASM) recommended hypopnoea criteria (AASM2007Rec) and the 2012 AASM recommended hypopnoea criteria (AASM2012Rec)...
November 11, 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27822883/lipoprotein-a-in-patients-with-hepatocellular-carcinoma-and-portal-vein-thrombosis
#9
Giulia Malaguarnera, Vito Emanuele Catania, Antonio Francaviglia, Michele Malaguarnera, Filippo Drago, Massimo Motta, Saverio Latteri
BACKGROUND: The mechanism for hypercoagulability in malignancy is not entirely understood. Although several studies report contrasting finding about the link between elevated plasma levels of the lipoprotein(a) [Lp(a)] and the possible recurrence of venous thromboembolism, we perform a study to evaluate the impact of the Lp(a) in the development of portal vein thromboembolism (PVT) in patients with HCC. METHODS: We compared 44 PVT patients with 50 healthy subjects and 50 HCC patients...
November 7, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27799294/structure-activity-relationships-of-substituted-cathinones-with-transporter-binding-uptake-and-release
#10
Amy J Eshleman, Katherine M Wolfrum, John F Reed, Sunyoung O Kim, Tracy Swanson, Robert A Johnson, Aaron J Janowsky
Synthetic cathinones are components of "bath salts" and have physical and psychological side effects including hypertension, paranoia, and hallucinations. Herein we report interactions of 20 "bath salt" components with human dopamine, serotonin, and norepinephrine transporters (hDAT, hSERT, and hNET, respectively) heterologously expressed in HEK 293 cells. Transporter inhibitors had nanomolar to micromolar affinities (Ki values) at radioligand binding sites, with relative affinities of hDAT>hNET>hSERT for α-PPP, α-PBP, α-PHP, PV-8, 3,4-MDPPP, 3,4-MDPBP, 4-MePPP, α-PVP, 4-MeO- α-PVP, α-PVT and pentedrone, and hDAT>hSERT>hNET for pentylone...
October 31, 2016: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/27797091/preliminary-validation-study-of-the-3-min-wrist-worn-psychomotor-vigilance-test
#11
Panagiotis Matsangas, Nita Lewis Shattuck, Stephanie Brown
The 10-min psychomotor vigilance test (PVT) is a widely used tool to assess behavioral alertness. In operational environments, however, the 3-min version of the PVT is more practicable. Under controlled laboratory conditions, we compared performance on the 3-min PVT on a wrist-worn device with the 3-min PVT on a laptop computer. We conducted two repeated measures experiments (72 participants) to assess the effects of PVT device type (laptop or wrist-worn), backlight on the wrist-worn device (on or off), ambient light (low or normal levels), and interstimulus interval (ISI)...
October 28, 2016: Behavior Research Methods
https://www.readbyqxmd.com/read/27793779/a-food-predictive-cue-attributed-with-incentive-salience-engages-subcortical-afferents-and-efferents-of-the-paraventricular-nucleus-of-the-thalamus
#12
Joshua L Haight, Zachary L Fuller, Kurt M Fraser, Shelly B Flagel
The paraventricular nucleus of the thalamus (PVT) has been implicated in behavioral responses to reward-associated cues. However, the precise role of the PVT in these behaviors has been difficult to ascertain since Pavlovian-conditioned cues can act as both predictive and incentive stimuli. The "sign-tracker/goal-tracker" rat model has allowed us to further elucidate the role of the PVT in cue-motivated behaviors, identifying this structure as a critical component of the neural circuitry underlying individual variation in the propensity to attribute incentive salience to reward cues...
October 25, 2016: Neuroscience
https://www.readbyqxmd.com/read/27784429/-clinical-features-of-liver-cirrhosis-complicated-by-portal-vein-thrombosis-and-related-risk-factors
#13
G S Lin, Q Xu, S Y Zhao, Y X Zhang
Objective: To investigate the clinical features of patients with liver cirrhosis complicated by portal vein thrombosis (PVT) and related risk factors. Methods: A total of 65 patients with liver cirrhosis complicated by PVT who were diagnosed and treated from June 2013 to June 2015 were enrolled as PVT group, and 70 cirrhotic patients without PVT were enrolled as controls (non-PVT group). The data collected included general information, results of laboratory examination, imaging findings, clinical manifestations, and complications...
July 20, 2016: Zhonghua Gan Zang Bing za Zhi, Zhonghua Ganzangbing Zazhi, Chinese Journal of Hepatology
https://www.readbyqxmd.com/read/27770082/endovascular-reconstruction-of-extrahepatic-portal-vein-in-noncirrhotic-and-nonmalignant-chronic-portal-vein-thrombosis-secondary-to-an-iatrogenic-stenotic-lesion
#14
Manuel Guerrero-Hernandez, Carlos A Hinojosa, Javier E Anaya-Ayala, Erika Elenes, Aldo Torre
Portal vein (PV) thrombosis (PVT) in the absence of liver disease or thrombophilia is rare. We report a 57-year-old male with a history of stage 3 chronic kidney disease who presented at the emergency department 18 months after abdominal surgery with progressive abdominal pain and distention. Computed tomography revealed PVT with multiple collaterals and moderate ascites. He had undergone partial gastrectomy and gastrojejunal anastomosis at an outside facility for gastrointestinal stromal tumors that caused an iatrogenic stenotic lesion in the PV...
October 20, 2016: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27756145/prevalence-and-outcome-of-portal-thrombosis-in-a-cohort-of-cirrhotic-patients-undergoing-liver-transplantation
#15
Marta Hernández Conde, Elba Llop Herrera, Juan de la Revilla Negro, Fernando Pons Renedo, Natalia Fernández Puga, José Luis Martínez Porras, María Trapero Marugan, Valentín Cuervas-Mons, Víctor Sánchez Turrión, José Luis Calleja Panero
INTRODUCTION: The prevalence of portal vein thrombosis (PVT) in patients that have undergone liver transplantation (LT) is 9.7% (SD 4.5). The aim of our study was to determine the prevalence, assess the factors that are associated with PVT and clarify their association with prognosis in patients with liver cirrhosis (LC) and LT. AIMS AND METHODS: From 2005 to 2014, laboratory, radiological and surgical data were collected from patients with LC in our center who had undergone LT for the first time...
October 19, 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27754674/confinement-induced-supercriticality-and-phase-equilibria-of-hydrocarbons-in-nanopores
#16
Sheng Luo, Jodie L Lutkenhaus, Hadi Nasrabadi
For over a century, the phase behavior of bulk fluids has been described as PVT (pressure-volume-temperature) three-dimensional properties, but it has become increasingly clear that the liquid-vapor phase behavior in confined geometries is significantly altered from the bulk. Efforts have been devoted to accessing confined phase transitions using sorption, molecular simulations and theoretical methods. However, a comprehensive picture of PVT relationships for confined hydrocarbons remains uncertain. Herein, we introduce d (confining pore diameter) as a fourth dimension, and we present PVT-d behavior of confined fluids in nanopores...
October 18, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/27740524/portal-vein-thrombosis-in-patients-with-cirrhosis-just-a-common-finding-or-a-predictor-of-poor-outcome
#17
Omar D Borjas-Almaguer, Carlos A Cortez-Hernández, Emmanuel I González-Moreno, Francisco J Bosques-Padilla, José A González-González, Aldo A Garza, Juan A Martínez-Segura, Diego García-Compean, Juan V Alejandre-Loya, Jesús García-García, Guillermo Delgado-García, Héctor J Maldonado-Garza
:  Background & Aims. It is unclear whether portal vein thrombosis (PVT) unrelated to malignancy is associated with reduced survival or it is an epiphenomenon of advanced cirrhosis. The objective of this study was to assess clinical outcome in cirrhotic patients with PVT not associated with malignancy and determine its prevalence. MATERIAL AND METHODS: Retrospective search in one center from June 2011 to December 2014. RESULTS: 169 patients, 55 women and 114 men, median age 54 (19-90) years...
November 2016: Annals of Hepatology
https://www.readbyqxmd.com/read/27736177/it-s-not-just-what-you-eat-but-when-the-impact-of-eating-a-meal-during-simulated-shift-work-on-driving-performance
#18
Charlotte C Gupta, Jill Dorrian, Crystal L Grant, Maja Pajcin, Alison M Coates, David J Kennaway, Gary A Wittert, Leonie K Heilbronn, Chris B Della Vedova, Siobhan Banks
Shiftworkers have impaired performance when driving at night and they also alter their eating patterns during nightshifts. However, it is unknown whether driving at night is influenced by the timing of eating. This study aims to explore the effects of timing of eating on simulated driving performance across four simulated nightshifts. Healthy, non-shiftworking males aged 18-35 years (n = 10) were allocated to either an eating at night (n = 5) or no eating at night (n = 5) condition. During the simulated nightshifts at 1730, 2030 and 0300 h, participants performed a 40-min driving simulation, 3-min Psychomotor Vigilance Task (PVT-B), and recorded their ratings of sleepiness on a subjective scale...
October 13, 2016: Chronobiology International
https://www.readbyqxmd.com/read/27733319/incidence-and-clinical-presentation-of-portal-vein-thrombosis-in-cirrhotic-patients
#19
Yasir Furkan Cagin, Yahya Atayan, Mehmet Ali Erdogan, Firat Dagtekin, Cemil Colak
BACKGROUND: Portal vein thrombosis (PVT) is due to many risk factors, but its pathogenesis is still not clearly understood. To identify the risk factors for PVT, we analyzed the clinical characteristics and complications associated with PVT in cirrhotic patients. METHODS: We studied patients with liver cirrhosis who were admitted to our unit from April 2009 to December 2014. The patients were divided into the PVT and non-PVT groups, and were compared by variables including gender, age, the etiology of cirrhosis, stage of cirrhosis, complications, imaging, and treatment...
October 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/27731531/toward-a-high-efficient-utilization-of-solar-radiation-by-quad-band-solar-spectral-splitting
#20
Feng Cao, Yi Huang, Lu Tang, Tianyi Sun, Svetlana V Boriskina, Gang Chen, Zhifeng Ren
The promising quad-band solar spectral splitter incorporates the properties of the optical filter and the spectrally selective solar thermal absorber can direct PV band to PV modules and absorb thermal band energy for thermal process with low thermal losses. It provides a new strategy for spectral splitting and offers potential ways for hybrid PVT system design.
October 12, 2016: Advanced Materials
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