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https://www.readbyqxmd.com/read/28110381/minimal-residual-disease-in-acute-myeloid-leukemia
#1
REVIEW
Pamela J Sung, Selina M Luger
New technology and improved understanding of the pathogenesis of acute leukemias have allowed for sensitive detection of minimal residual disease (MRD). Despite many years of research demonstrating the prognostic value of MRD, there is no standard of care for measurement of MRD in acute myeloid leukemia. The techniques for assessment are continuing to improve at a rapid pace; however, the benefit of risk-adapted approaches for MRD positive disease remains a major question. This review focuses on recent methodological advances for MRD detection, the role of MRD in prognostication, and current application of the available evidence in guiding therapy decisions...
January 2017: Current Treatment Options in Oncology
https://www.readbyqxmd.com/read/28110236/the-predictability-of-a-partner-s-actions-modulates-the-sense-of-joint-agency
#2
Nicole K Bolt, Janeen D Loehr
When people coordinate their actions with others, they experience a sense of joint agency, i.e., shared control over actions and their consequences. The current study examined whether the predictability of others' actions modulates joint agency. Each participant coordinated with two confederate partners to produce tone sequences that matched a metronome pace. The timing of the confederates' actions was manipulated so that one partner's actions were highly predictable in time and the other's less predictable...
January 19, 2017: Cognition
https://www.readbyqxmd.com/read/28109316/adenosine-induced-ventricular-fibrillation-in-a-structurally-normal-heart-a-case-report
#3
Christopher A Rajkumar, Norman Qureshi, Fu Siong Ng, Vasileios F Panoulas, Phang Boon Lim
BACKGROUND: Adenosine is the first-line pharmacotherapy for termination of supraventricular tachycardia through its action on the atrioventricular node. However, pro-arrhythmic effects of adenosine are also recognised, most notably in the presence of pre-excited atrial fibrillation. In this case report, we describe the induction of ventricular fibrillation in a patient with no demonstrable accessory pathway, nor any other structural heart disease. This rare, idiosyncratic reaction has never previously been reported and is of relevance given the widespread and routine use of adenosine in clinical practice...
January 22, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28109168/integrated-omics-analysis-of-specialized-metabolism-in-medicinal-plants
#4
Amit Rai, Kazuki Saito, Mami Yamazaki
Medicinal plants are the rich source of highly diverse specialized metabolites with important pharmacological properties. Until recently, plant biologists were limited in their approach to explore biosynthetic pathways of these metabolites, mainly due to the scarcity of plant genomics resources. Recent advancements in the high-throughput large-scale analytical methods have enabled plant biologists to discover biosynthetic pathways for important plant-based medicinal metabolites. Reduced cost to generate omics datasets, and the development of computational tools for their analysis and integration have led to the elucidation of biosynthetic pathways of several plant origin bio-active metabolites...
January 21, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28108952/transcriptional-regulators-dictate-innate-lymphoid-cell-fates
#5
REVIEW
Chao Zhong, Jinfang Zhu
Research on innate lymphoid cells (ILC) has recently been a fast paced topic of immunological research. As ILCs are able to produce signature Th cytokine, ILCs have garnered considerable attention and have been described to represent the innate counterpart of the CD4(+) T helper (Th) cells. The development and function of ILCs are precisely regulated by a network of crucial transcription factors, which are also involved in the development or differentiation of conventional natural killer (cNK) cells and T cells...
January 20, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28108548/the-effect-of-left-ventricular-pacing-on-transmural-activation-delay-in-myopathic-human-hearts
#6
Andreu Porta-Sánchez, Paul Angaran, Stéphane Massé, Krishnakumar Nair, Talha Farid, Karthikeyan Umapathy, John Asta, Sigfus Gizurarson, Kumaraswamy Nanthakumar
AIMS: Left ventricular (LV) epicardial pacing (LVEpiP) in human myopathic hearts does not decrease global epicardial activation delay compared with right ventricular (RV) endocardial pacing (RVEndoP); however, the effect on transmural activation delay has not been evaluated. To characterize the transmural electrical activation delay in human myopathic hearts during RVEndoP and LVEpiP compared with global epicardial activation delay. METHODS AND RESULTS: Explanted hearts from seven patients (5 male, 46 ± 10 years) undergoing cardiac transplantation were Langendorff-perfused and mapped using an epicardial sock electrode array (112 electrodes) and 25 transmural plunge needles (four electrodes, 2 mm spacing), for a total of 100 unipolar transmural electrodes...
January 20, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28107477/effects-of-ambient-environmental-factors-on-the-stereotypic-behaviors-of-giant-pandas-ailuropoda-melanoleuca
#7
He Liu, Hejun Duan, Cheng Wang
Stereotypies are commonly observed in zoo animals, and it is necessary to better understand whether ambient environmental factors contribute to stereotypy and how to affect animal welfare in zoo settings. This study investigated the relationships between stereotypic behaviors and environmental factors including ambient temperatures, humidity, light intensity, sound intensity and number of visitors. Seven giant pandas were observed in three indoor enclosures and three outdoor enclosures. Environmental factors were measured for both indoor and outdoor enclosures and the effect they had on stereotypical behaviors was investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28106965/transapical-approach-to-optimize-left-ventricular-resynchronization-in-patients-with-dilated-cardiomyopathy
#8
Imre Kassai, Alberto Pozzoli, Orsolya Friedrich, Zsuzsanna Kis, Tamas SziliTorok, Elisabetta Lapenna, Stefano Benussi, Ottavio Alfieri
An alternative to coronary sinus implantation for a left ventricular pacing lead is frequently needed for cardiac resynchronization therapy. We have developed a transapical approach to implant an endocardial pacing lead that will reach the most delayed segment of the left ventricle. This method is easily combined with other transapical heart surgeries. After some technological improvement our technique should offer easier access and better results than other currently available implantation methods.
January 16, 2017: Multimedia Manual of Cardiothoracic Surgery: MMCTS
https://www.readbyqxmd.com/read/28105997/first-successful-transcatheter-double-valve-replacement-from-a-transapical-access-and-nine-month-follow-up
#9
Robert Bauernschmitt, Stefan Bauer, Christian Liewald, Ramiz Emini, Wolfgang Oechsner, Meinrad Beer, Ralf Sodian, Andreas Liebold
AIMS: While TAVI is the treatment of choice in patients with aortic stenosis considered inoperable or at high risk, interventional replacement of the mitral valve is still in the preclinical or early clinical phase. Our aim was to report on the first transcatheter double valve replacement into native valves from a transapical access. METHODS AND RESULTS: A 67-year-old, highly symptomatic female patient considered inoperable due to severe calcification of the mitral annulus and comorbidities was scheduled for transcatheter double valve replacement by the local Heart Team...
January 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28105744/multiclass-hcv-resistance-to-direct-acting-antiviral-failure-in-real-life-patients-advocates-for-tailored-second-line-therapies
#10
Velia C Di Maio, Valeria Cento, Ilaria Lenci, Marianna Aragri, Piera Rossi, Silvia Barbaliscia, Michela Melis, Gabriella Verucchi, Carlo F Magni, Elisabetta Teti, Ada Bertoli, FrancescoPaolo Antonucci, Maria C Bellocchi, Valeria Micheli, Chiara Masetti, Simona Landonio, Simona Francioso, Francesco Santopaolo, Adriano M Pellicelli, Vincenza Calvaruso, Laura Gianserra, Massimo Siciliano, Dante Romagnoli, Raffaele Cozzolongo, Antonio Grieco, Jacopo Vecchiet, Filomena Morisco, Manuela Merli, Giuseppina Brancaccio, Antonio Di Biagio, Elisabetta Loggi, Claudio M Mastroianni, Valeria Pace Palitti, Pierluigi Tarquini, Massimo Puoti, Gloria Taliani, Loredana Sarmati, Antonino Picciotto, Vincenzo Vullo, Nicola Caporaso, Maurizio Paoloni, Caterina Pasquazzi, Giuliano Rizzardini, Giustino Parruti, Antonio Craxì, Sergio Babudieri, Massimo Andreoni, Mario Angelico, Carlo F Perno, Francesca Ceccherini-Silberstein
BACKGROUND & AIMS: Despite the excellent efficacy of direct-acting antivirals (DAA) reported in clinical trials, virological failures can occur, often associated with the development of resistance-associated substitutions (RASs). This study aimed to characterize the presence of clinically relevant RASs to all classes in real-life DAA failures. METHODS: Of the 200 virological failures that were analyzed in 197 DAA-treated patients, 89 with pegylated-interferon+ribavirin (PegIFN+RBV) and 111 without (HCV-1a/1b/1g/2/3/4=58/83/1/6/24/25; 56...
January 20, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28104644/draft-genome-sequence-of-hydrogenibacillus-schlegelii-ma48-a-deep-branching-member-of-the-bacilli-class-of-firmicutes
#11
Allison Maker, James Hemp, Laura A Pace, Lewis M Ward, Woodward W Fischer
We report here the draft genome sequence of Hydrogenibacillus schlegelii MA48, a thermophilic facultative anaerobe that can oxidize hydrogen aerobically. H. schlegelii MA48 belongs to a deep-branching clade of the Bacilli class and provides important insight into the acquisition of aerobic respiration within the Firmicutes phylum.
January 19, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28104482/device-pacing-diagnostics-overestimate-effective-crt-pacing-results-of-the-holter-for-efficacy-analysis-of-crt-study-ol%C3%A3-crt-study
#12
Antonio Hernández-Madrid, Domenico Facchin, Ruth Nicholson Klepfer, Subham Ghosh, Roberto Matía, Javier Moreno, Alessandro Locatelli
BACKGROUND: A high percentage of bi-ventricular (BiV) or left ventricular (LV) pacing in CRT devices has been associated with superior clinical outcomes. However, the percent ventricular (V) pacing reported by CRT devices simply indicates the number of paces the device has delivered, not the proportion of pacing that has captured the LV effectively. OBJECTIVE: A beat-by-beat evaluation of effective pacing would provide a more accurate evaluation of CRT delivery...
January 16, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28104253/the-effect-of-fampridine-sr-on-cognitive-fatigue-in-a-randomized-double-blind-crossover-trial-in-patients-with-ms
#13
Sarah A Morrow, Heather Rosehart, Andrew M Johnson
BACKGROUND: Cognitive fatigue (CF) is a common complaint in persons with MS (PwMS). Fampridine-SR improves ambulation, fatigue and endurance, due to enhancing action potential formation by blocking potassium channels in demyelinated axons. Thus, through this same mechanism, it is hypothesized that Fampridine-SR could improve CF. OBJECTIVE: To determine if Fampridine-SR objectively improves CF in PwMS. METHODS: Sixty PwMS of any type with CF, defined as 3 or less correct responses when comparing the last third to the first third on the Paced Auditory Serial Addition Test (PASAT), were recruited from a tertiary care MS clinic in London (ON) Canada...
January 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28103907/the-association-between-fear-of-falling-and-smoothness-of-lower-trunk-oscillation-in-gait-varies-according-to-gait-speed-in-community-dwelling-older-adults
#14
Tsuyoshi Asai, Shogo Misu, Ryuichi Sawa, Takehiko Doi, Minoru Yamada
BACKGROUND: Fear of falling (FoF) is common in community-dwelling older adults. FoF and increased walking speed are associated with lower trunk oscillation during gait in older adults. We hypothesized that older adults with FoF would struggle to walk safely when instructed to walk faster than usual. METHODS: Participants included 260 community-dwelling older adults aged over 65 years (mean age = 71.9 ± 3.9 years) who were able to walk independently without an assistive device...
January 19, 2017: Journal of Neuroengineering and Rehabilitation
https://www.readbyqxmd.com/read/28103825/factors-behind-the-success-story-of-under-five-stunting-in-peru-a-district-ecological-multilevel-analysis
#15
Luis Huicho, Carlos A Huayanay-Espinoza, Eder Herrera-Perez, Eddy R Segura, Jessica Niño de Guzman, María Rivera-Ch, Aluisio J D Barros
BACKGROUND: Stunting prevalence in children less than 5 years has remained stagnated in Peru from 1992 to 2007, with a rapid reduction thereafter. We aimed to assess the role of different predictors on stunting reduction over time and across departments, from 2000 to 2012. METHODS: We used various secondary data sources to describe time trends of stunting and of possible predictors that included distal to proximal determinants. We determined a ranking of departments by annual change of stunting and of different predictors...
January 19, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28103739/newer-medical-therapies-for-metastatic-soft-tissue-sarcoma
#16
Akash Tiwari, Vineet Govinda Gupta, Sameer Bakhshi
Metastatic/advanced soft tissue sarcoma has a poor prognosis and conventionally, treatment options have been limited. In recent years, this area has been a rich ground for research with many new drugs being approved and several more in the pipeline. With multiple new treatment options available, it is vital to keep up pace with this rapidly changing field. Areas covered: Recent data regarding use of novel agents in advanced soft tissue sarcoma is reviewed with a focus on clinical applicability. The goal is to guide the clinician into choosing appropriate lines of therapy for the individual patient in light of recent availability of multiple new treatment options...
January 20, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28103477/a-brief-history-of-long-term-potentiation
#17
REVIEW
Roger A Nicoll
Since the discovery of long-term potentiation (LTP) in 1973, thousands of papers have been published on this intriguing phenomenon, which provides a compelling cellular model for learning and memory. Although LTP has suffered considerable growing pains over the years, LTP has finally come of age. Here the rich history of LTP is reviewed. These are exciting times and the pace of discovery is remarkable.
January 18, 2017: Neuron
https://www.readbyqxmd.com/read/28103423/adipose-derived-perivascular-mesenchymal-stromal-stem-cells-promote-functional-vascular-tissue-engineering-for-cardiac-regenerative-purposes
#18
Justin Morrissette-McAlmon, Adriana Blazeski, Sarah Somers, Geran Kostecki, Leslie Tung, Warren L Grayson
Cardiac tissue engineering approaches have the potential to regenerate functional myocardium with intrinsic vascular networks. In this study, we compared the relative effects of human adipose-derived stem/stromal cells (hASCs) and human dermal fibroblasts (hDFs) in co-cultures with neonatal rat ventricular cardiomyocytes (NRVCMs) and human umbilical vein endothelial cells (HUVECs). We found that at the same ratios of NRVCM:hASC and NRVCM:hDF, the hASC co-cultures displayed shorter action potentials and maintained capture at faster pacing rates...
January 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28102232/aetiology-and-management-of-hereditary-aortopathy
#19
REVIEW
Aline Verstraeten, Ilse Luyckx, Bart Loeys
Aortic aneurysms are a major health problem because they account for 1-2% of all deaths in the Western population. Although abdominal aortic aneurysms (AAAs) are more prevalent than thoracic aortic aneurysms (TAAs), TAAs have been more exhaustively studied over the past 2 decades because they have a higher heritability and affect younger individuals. Gene identification in both syndromic and nonsyndromic TAA is proceeding at a rapid pace and has already pinpointed >20 genes associated with familial TAA risk...
January 19, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/28102001/evaluation-of-the-hybrid-resolution-pace-model-for-the-study-of-folding-insertion-and-pore-formation-of-membrane-associated-peptides
#20
Michael D Ward, Shivangi Nangia, Eric R May
The PACE force field presents an attractive model for conducting molecular dynamics simulations of membrane-protein systems. PACE is a hybrid model, in which lipids and solvents are coarse-grained consistent with the MARTINI mapping, while proteins are described by a united atom model. However, given PACE is linked to MARTINI, which is widely used to study membranes, the behavior of proteins interacting with membranes has only been limitedly examined in PACE. In this study, PACE is used to examine the behavior of several peptides in membrane environments, namely WALP peptides, melittin and influenza hemagglutinin fusion peptide (HAfp)...
January 19, 2017: Journal of Computational Chemistry
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