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https://www.readbyqxmd.com/read/28340197/the-evolution-and-benefit-of-device-therapy-in-patients-listed-for-heart-transplant
#1
Bert Vandenberk, Mark Hinderks, Gabor Voros, Christophe Garweg, Johan Vanhaecke, Rik Willems
Aims: The latest 2015 ESC Guidelines on the prevention of sudden cardiac death make a Class IIa recommendation for ICD implantation in patients listed for heart transplantation. This recommendation was based on expert consensus in view of the sparsity of data. Methods and results: All patients listed for heart transplantation at the University Hospitals of Leuven from 2002 until 2014 were studied retrospectively. Exclusion criteria were age <16 years, cardiac disease other than ischaemic or dilated cardiomyopathy and re-transplantation...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340152/sarcopenia-and-relationships-between-muscle-mass-measured-glomerular-filtration-rate-and-physical-function-in-patients-with-chronic-kidney-disease-stages-3-5
#2
Yunan Zhou, Matthias Hellberg, Philippa Svensson, Peter Höglund, Naomi Clyne
Background.: Sarcopenia and poor physical function are common in patients with chronic kidney disease (CKD). Our aim was to investigate the relationships between muscle mass and measured glomerular filtration rate (GFR) and between muscle mass and strength and balance, respectively, in patients with CKD stages 3-5. Methods.: This is a baseline data analysis of a randomized controlled clinical trial. A total of 148 adult patients with an estimated GFR <30 mL/min/1...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28340063/conventional-simplicity-iii-and-cooled-sinergy-radiofrequency-for-sacroiliac-joint-denervation-one-year-retrospective-study-comparing-two-devices
#3
Andrea Tinnirello, Sandra Barbieri, Manuel Todeschini, Maurizio Marchesini
Objective. : To compare two radiofrequency (RF) devices, Simplicity III (conventional RF), and SInergy (cooled RF), which are specifically designed to denervate the sacroiliac joint (SIJ). Design. : Retrospective observational study. Setting. : Italian National Health Service Public Hospital. Subjects.:  Forty-three patients with SIJ-derived pain refractory to conservative treatment; 21 and 22 patients, respectively, received Simplicity III or SInergy to denervate the SIJ...
March 15, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28340040/impaired-ability-to-grow-colonies-of-endothelial-stem-cells-could-be-the-mechanism-explaining-the-high-cardiovascular-morbidity-mortality-of-patients-with-depression
#4
Blum Arnon, Pastukh Nina, Zaroura Imad, Jonathan Rotem, Farhat Kamal
Background: Subjects with depression are more prone to develop cardiovascular complications. Severity of depression is associated with higher rates of cardiovascular mortality and morbidity. Several mechanisms were suggested including accelerated atherosclerosis, alteration of the cardiac autonomic response with a decrease in heart rate variability. There is evidence that circulating endothelial progenitor cells (EPCs) are decreased in patients with major depression. Our hypothesis was that patients with depression would have an impaired ability to build colonies of endothelial progenitor cells...
March 9, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28339688/an-activity-staining-method-on-filtration-paper-enables-high-throughput-screening-of-temperature-sensitive-and-inactive-mutations-of-rice-%C3%AE-amylase-for-improvement-of-rice-grain-quality
#5
Hiromoto Yamakawa, Rieko Hirai-Kimura, Yuriko Nakata, Masaru Nakata, Masaharu Kuroda, Takeshi Yamaguchi
α-Amylase is a starch-hydrolyzing enzyme (EC 3.2.1.1) indispensable for germination of cereal seeds, but it is also expressed during the ripening stage. Previous studies demonstrated that the enzyme is activated in developing rice seeds under extremely hot weather and triggers a loss of grain quality by hindering the accumulation of storage starch in the endosperm. Since inactive or, preferably, heat-labile α-amylases are preferable for breeding premium rice, we developed a method for rapid screening of inactive and temperature-sensitive mutants of the enzyme by combining the random mutagenesis by error-prone PCR and an on-filter activity test of the recombinant enzyme expressed by Escherichia coli...
February 21, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/28339060/chronological-changes-in-the-expression-of-phosphorylated-tau-and-5%C3%A2-amp%C3%A2-activated-protein-kinase-in-the-brain-of-senescence%C3%A2-accelerated-p8-mice
#6
Hak-Su Kim, Sohee Moon, Sujin Kim, Min-Jae Lee, Min Hwa Suk, Dong-Ho Park, Dong Wun Shin, Chang-Shin Park, Ju-Hee Kang
Senescence-accelerated mouse prone 8 (SAMP8), a non‑transgenic animal model used for researching sporadic Alzheimer's disease (AD), presents AD pathologies and overall dysregulation in brain energy metabolism, which is one of the early pathogenic characteristics of AD. In the present study, the authors examined chronological changes in the expression patterns of phosphorylated tau and of proteins related to energy metabolism to evaluate the association of tau phosphorylation and metabolism, using young‑ (2‑months‑old), middle‑ (5‑months‑old) and old‑aged (10‑months‑old) SAMP8...
March 23, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338785/elevated-nucleus-accumbens-structural-connectivity-associated-with-proneness-to-hypomania-a-reward-hypersensitivity-perspective
#7
Katherine S Damme, Christina B Young, Robin Nusslock
The Reward Hypersensitivity Model of bipolar disorder argues that hypersensitivity to reward-relevant cues characterizes risk for hypo/mania. This hypersensitivity leads to increased goal-directed motivation during reward-relevant life events that, in the extreme, is reflected in hypo/manic symptoms. In line with this perspective, individuals with bipolar disorder display elevated activation in a cortico-striatal reward circuit including the nucleus accumbens (NAcc) and medial orbitofrontal cortex (mOFC). To date, however, research on reward-related neural circuitry underlying bipolar symptoms focuses on syndromal bipolar disorder (bipolar I, bipolar II), and typically examines neural regions in isolation of each other...
February 17, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28338504/ventilation-with-high-or-low-tidal-volume-with-peep-does-not-influence-lung-function-after-spinal-surgery-in-prone-position-a-randomized-controlled-trial
#8
Sarah Soh, Jae-Kwang Shim, Yoon Ha, Young-Sam Kim, Hyelin Lee, Young-Lan Kwak
BACKGROUND: Spinal surgery in the prone position is accompanied by increased intrathoracic pressure and decreased respiratory compliance. This study investigated whether intraoperative lung protective mechanical ventilation improved lung function evaluated with pulmonary function tests in patients at risk of postoperative pulmonary complications (PPCs) after major spinal surgery in the prone position. METHODS: Seventy-eight patients at potential risk of PPCs were randomly assigned to the protective group (tidal volume; 6 mL/kg predicted body weight, 6 cm H2O positive end-expiratory pressure with recruitment maneuvers) or the conventional group (10 mL/kg predicted body weight, no positive end-expiratory pressure)...
March 23, 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28338205/association-between-hepatitis-b-and-hearing-status
#9
S-P Bao
OBJECTIVE: This study was performed to investigate the correlation between the chronic hepatitis B virus infection and hearing status. This study was performed to investigate the correlation between the chronic hepatitis B virus infection and hearing status. PATIENTS AND METHODS: This research was based on 76 hepatitis-B infections as the case group (including 35 HBV carriers and 41 chronic hepatitis B (CHB) patients) and 54 normal cases as the control group. They were selected sequentially and audiologic tests were performed on the participants...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28337953/influence-of-chronic-exposure-to-simulated-shift-work-on-disease-and-longevity-in-disease-prone-inbred-mice
#10
Linda A Toth Rita A Trammell Teresa Liberati Steve Verhulst Marcia L Hart Jacob E Moskowitz And Craig Franklin
Shift work (SW) is viewed as a risk factor for the development of many serious health conditions, yet prospective studies thatdocument such risks are rare. The current study addressed this void by testing the hypothesis that long-term exposure to repeated diurnal phase shifts, mimicking SW, will accelerate disease onset or death in inbred mice with genetic risk of developing cancer,diabetes, or autoimmune disease. The data indicate that 1) life-long exposure to simulated SW accelerates death in female cancerprone AKR/J mice; 2) a significant proportion of male NON/ShiLtJ mice, which have impaired glucose tolerance but do not normally progress to type 2 diabetes, develop hyperglycemia, consistent with diabetes (that is, blood glucose 250 mg/dL or greater) after exposure to simulated SW for 8 wk; and 3) MRL/MpJ mice, which are prone to develop autoimmune disease, showed sex-related acceleration of disease development when exposed to SW as compared with mice maintained on a stable photocycle...
March 23, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28337673/progression-free-survival-as-a-surrogate-for-overall-survival-in-clinical-trials-of-targeted-therapy-in-advanced-solid-tumors
#11
Stefan Michiels, Everardo D Saad, Marc Buyse
Over the past 15 years, targeted therapy has revolutionized the systemic treatment of cancer. In parallel, there has been a growing debate on the choice of end points in clinical trials in oncology. This debate basically hinges on the choice between overall survival (OS) and progression-free survival (PFS). PFS is advantageous because it is measured earlier than OS, requires a smaller sample size than OS to achieve the desired power, and is not influenced by cross-over. On the other hand, PFS is prone to measurement error and bias, and may not capture the entire treatment effect on the outcomes of most interest to patients with an incurable disease: a prolonged survival and improved quality of life...
March 23, 2017: Drugs
https://www.readbyqxmd.com/read/28337404/revising-reach-guidance-on-information-requirements-and-chemical-safety-assessment-for-engineered-nanomaterials-for-aquatic-ecotoxicity-endpoints-recommendations-from-the-envnano-project
#12
Steffen Foss Hansen, Sara Nørgaard Sørensen, Lars Michael Skjolding, Nanna B Hartmann, Anders Baun
The European Chemical Agency (ECHA) is in the process of revising its guidance documents on how to address the challenges of ecotoxicological testing of nanomaterials. In these revisions, outset is taken in the hypothesis that ecotoxicological test methods, developed for soluble chemicals, can be made applicable to nanomaterials. European Research Council project EnvNano-Environmental Effects and Risk Evaluation of Engineered, which ran from 2011 to 2016, took another outset by assuming that: "The behaviour of nanoparticles in suspension is fundamentally different from that of chemicals in solution"...
2017: Environmental Sciences Europe
https://www.readbyqxmd.com/read/28336820/an-advanced-glycation-endproduct-age-rich-diet-promotes-accumulation-of-ages-in-achilles-tendon
#13
Dorthe Skovgaard, Rene B Svensson, Jean Scheijen, Pernilla Eliasson, Pernille Mogensen, Anne Mette F Hag, Michael Kjær, Casper G Schalkwijk, Peter Schjerling, Stig P Magnusson, Christian Couppé
Advanced Glycation Endproducts (AGEs) accumulate in long-lived tissue proteins like collagen in bone and tendon causing modification of the biomechanical properties. This has been hypothesized to raise the risk of orthopedic injury such as bone fractures and tendon ruptures. We evaluated the relationship between AGE content in the diet and accumulation of AGEs in weight-bearing animal Achilles tendon. Two groups of mice (C57BL/6Ntac) were fed with either high-fat diet low in AGEs high-fat diet (HFD) (n = 14) or normal diet high in AGEs (ND) (n = 11)...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28336539/the-influence-of-gravity-on-regional-lung-blood-flow-in-humans-spect-in-the-upright-and-head-down-posture
#14
Malin Ax, Alejandro Sanchez-Crespo, Sten G E Lindahl, Margareta Mure, Johan Petersson
Previous studies in humans have shown that gravity has little influence on the distribution of lung blood flow while changing posture from supine to prone. This study aimed to evaluate the maximal influence of posture by comparison of regional lung blood flow in the upright and head-down posture in 8 healthy volunteers, using a tilt table. Regional lung blood flow was marked by i.v. injection of macroaggregates of human albumin labeled with (99m)Tc or (113m)In, in the upright and head-down posture respectively, during tidal breathing...
March 23, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28336179/control-of-dna-end-resection-by-yeast-hmo1p-affects-efficiency-of-dna-end-joining
#15
Arvind Panday, LiJuan Xiao, Ashish Gupta, Anne Grove
The primary pathways for DNA double strand break (DSB) repair are homologous recombination (HR) and non-homologous end-joining (NHEJ). The choice between HR and NHEJ is influenced by the extent of DNA end resection, as extensive resection is required for HR but repressive to NHEJ. Conversely, association of the DNA end-binding protein Ku, which is integral to classical NHEJ, inhibits resection. In absence of key NHEJ components, a third repair pathway is exposed; this alternative-end joining (A-EJ) is a highly error-prone process that uses micro-homologies at the breakpoints and is initiated by DNA end resection...
March 9, 2017: DNA Repair
https://www.readbyqxmd.com/read/28335658/dopamine-antagonists-for-treatment-resistance-in-autism-spectrum-disorders-review-and-focus-on-bdnf-stimulators-loxapine-and-amitriptyline
#16
Jessica A Hellings, L Eugene Arnold, Joan Han
Drug development is urgently needed for individuals with autism spectrum disorders (ASD) and psychiatric comorbidity, which often presents as aggression and self-injury. At the same time, most psychiatric medications are drugs that have been repurposed following clinical observations of efficacy for a new treatment purpose. Areas Covered: This review aims to provide an overview of dopamine antagonists, including classical and atypical, as well as unconventional antipsychotics in ASD, since they are a mainstay of treatment for such problems...
March 24, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28334952/dnmt1-mutations-found-in-hsanie-patients-affect-interaction-with-uhrf1-and-neuronal-differentiation
#17
Martha Smets, Stephanie Link, Patricia Wolf, Katrin Schneider, Veronica Solis, Joel Ryan, Daniela Meilinger, Weihua Qin, Heinrich Leonhardt
DNMT1 is recruited to substrate sites by PCNA and UHRF1 to maintain DNA methylation after replication. The cell cycle dependent recruitment of DNMT1 is mediated by the PCNA-binding domain (PBD) and the targeting sequence (TS) within the N-terminal regulatory domain. The TS domain was found to be mutated in patients suffering from hereditary sensory and autonomic neuropathies with dementia and hearing loss (HSANIE) and autosomal dominant cerebellar ataxia deafness and narcolepsy (ADCA-DN) and is associated with global hypomethylation and site specific hypermethylation...
March 3, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334922/scn2a-deletion-improves-survival-and-brain-heart-dynamics-in-the-kcna1-null-mouse-model-of-sudden-unexpected-death-in-epilepsy-sudep
#18
Vikas Mishra, Bharat K Karumuri, Nicole M Gautier, Rui Liu, Timothy N Hutson, Stephanie L Vanhoof-Villalba, Ioannis Vlachos, Leonidas Iasemidis, Edward Glasscock
People with epilepsy have greatly increased probability of premature mortality due to sudden unexpected death in epilepsy (SUDEP). Identifying which patients are most at risk of SUDEP is hindered by a complex genetic etiology, incomplete understanding of the underlying pathophysiology, and lack of prognostic biomarkers. Here we evaluated heterozygous Scn2a gene deletion (Scn2a+/-) as a protective genetic modifier in the Kcna1 knockout mouse (Kcna1-/-) model of SUDEP, while searching for biomarkers of SUDEP risk embedded in electroencephalography (EEG) and electrocardiography (ECG) recordings...
March 15, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28333696/a-universal-freeze-all-strategy-why-it-is-not-warranted
#19
Baris Ata, Emre Seli
PURPOSE OF REVIEW: There's some preclinical evidence of an adverse effect of multifollicular growth on endometrial function in assisted reproductive technology cycles. Universal elective frozen embryo transfer (eFET) in an unstimulated cycle is being promoted as a panacea, regardless of patient, and cycle characteristics. We review the clinical evidence on the effectiveness and safety of eFETs. RECENT FINDINGS: Randomized controlled trials (RCTs) comparing fresh and eFET yield contradictory results in terms of live birth rates...
March 22, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28333623/a-comparison-of-fem-based-inversion-algorithms-local-frequency-estimation-and-direct-inversion-approach-used-in-mr-elastography
#20
Mohammad Honarvar, Ramin Sahebjavaher, Robert Rohling, Septimiu Salcudean
In quantitative elastography, maps of the mechanical properties of soft tissue, or elastograms, are calculated from the measured displacement data by solving an inverse problem. The model assumptions have a significant effect on elastograms. Motivated by the high sensitivity of imaging results to the model assumptions for in-vivo Magnetic Resonance Elastography (MRE) of the prostate, we compared elastograms obtained with four different methods. Two FEM-based methods developed by our group were compared with two other commonly used methods, Local Frequency Estimator (LFE) and curl-based Direct Inversion (c-DI)...
March 22, 2017: IEEE Transactions on Medical Imaging
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