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https://www.readbyqxmd.com/read/28106442/finding-matrix-product-state-representations-of-highly-excited-eigenstates-of-many-body-localized-hamiltonians
#1
Xiongjie Yu, David Pekker, Bryan K Clark
A key property of many-body localized Hamiltonians is the area law entanglement of even highly excited eigenstates. Matrix product states (MPS) can be used to efficiently represent low entanglement (area law) wave functions in one dimension. An important application of MPS is the widely used density matrix renormalization group (DMRG) algorithm for finding ground states of one-dimensional Hamiltonians. Here, we develop two algorithms, the shift-and-invert MPS (SIMPS) and excited state DMRG which find highly excited eigenstates of many-body localized Hamiltonians...
January 6, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28106155/secreted-mir-27a-induced-by-cyclic-stretch-modulates-the-proliferation-of-endothelial-cells-in-hypertension-via-grk6
#2
Lu Wang, Han Bao, Kai-Xuan Wang, Ping Zhang, Qing-Ping Yao, Xiao-Hu Chen, Kai Huang, Ying-Xin Qi, Zong-Lai Jiang
Abnormal proliferation of endothelial cells (ECs) is important in vascular remodeling during hypertension, but the mechanisms are still unclear. In hypertensive rats caused by abdominal aortic coarctation, the expression of G-protein-coupled receptor kinase 6 (GRK6) in ECs at common carotid artery was repressed in vivo, and EC proliferation was increased. 15% cyclic stretch in vitro, which mimics the pathologically increased stretch in hypertension, repressed EC GRK6 expression via paracrine control by vascular smooth muscle cells (VSMCs)...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28104686/maternity-units-face-challenging-workforce-gaps-mps-are-told
#3
Adrian O'Dowd
No abstract text is available yet for this article.
January 19, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28104572/progressive-heart-disease-in-mucopolysaccharidosis-type-i-mice-may-be-mediated-by-increased-cathepsin-b-activity
#4
Guilherme Baldo, Angela Maria Vicente Tavares, Esteban Gonzalez, Edina Poletto, Fabiana Quoos Mayer, Ursula da Silveira Matte, Roberto Giugliani
Mucopolysaccharidosis type I (MPS I) is a lysosomal disorder characterized by a deficiency of alpha-L-iduronidase and storage of undegraded glycosaminoglycans (GAGs). Clinical findings of the disease include heart failure, and patients often need valve replacement. It has been shown that, later in life, MPS I mice develop those abnormalities, but to date, there have not been studies on the progression and pathogenesis of the disease. Therefore, in the present study, we evaluated heart function in normal and MPS I male mice from 2 to 8 months of age...
January 6, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28102766/soluble-p-selectin-rescues-mice-from-anthrax-lethal-toxin-induced-mortality-through-psgl-1-pathway-mediated-correction-of-hemostasis
#5
Der-Shan Sun, Yao-Wen Chang, Jyh-Hwa Kau, Hsin-Hsien Huang, Pei-Hsun Ho, Yin-Jeh Tzeng, Hsin-Hou Chang
As one of the virulence factors of Bacillus anthracis, lethal toxin (LT) induces various pathogenic responses including the suppression of the coagulation system. In this study, we observed that LT markedly increased the circulating soluble P-selectin (sP-sel) levels and microparticle (MP) count in wild-type but not P-selectin (P-sel, Selp(-)(-)(-)) or P-sel ligand-1 (PSGL-1, Selplg(-)(-)(-)) knockout mice. Because sP-sel induces a hypercoagulable state through PSGL-1 pathway to generate tissue factor-positive MPs, we hypothesized that the increase in plasma sP-sel levels can be a self-rescue response in hosts against the LT-mediated suppression of the coagulation system...
January 19, 2017: Virulence
https://www.readbyqxmd.com/read/28101780/update-of-the-spectrum-of-mucopolysaccharidoses-type-iii-in-tunisia-identification-of-three-novel-mutations-and-in-silico-structural-analysis-of-the-missense-mutations
#6
Souad Ouesleti, Maria Francisca Coutinho, Isaura Ribeiro, Abdehedi Miled, Dalila Saidane Mosbahi, Sandra Alves
BACKGROUND: Mucopolysaccharidoses type III (MPS III) are a group of autosomal recessive lysosomal storage diseases, caused by mutations in genes that code for enzymes involved in the lysosomal degradation of heparan sulphate: heparan sulfate sulfamidase (SGSH), α-N-acetylglucosaminidase (NAGLU), heparan sulfate acetyl-CoA: α-glucosaminide N-acetyltransferase (HGSNAT), and N-acetylglucosamine-6-sulfatase (GNS). METHODS: In this study, we have performed the molecular analysis of the SGSH, NAGLU and HGSNAT genes in 10 patients from 6 different MPS III Tunisian families...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28101538/recent-advances-in-engineering-microparticles-and-their-nascent-utilization-in-biomedical-delivery-and-diagnostic-applications
#7
REVIEW
Andrew Choi, Kyoung Duck Seo, Do Wan Kim, Bum Chang Kim, Dong Sung Kim
Complex microparticles (MPs) bearing unique characteristics such as well-tailored sizes, various morphologies, and multi-compartments have been attempted to be produced by many researchers in the past decades. However, a conventionally used method of fabricating MPs, emulsion polymerization, has a limitation in achieving the aforementioned characteristics and several approaches such as the microfluidics-assisted (droplet-based microfluidics and flow lithography-based microfluidics), electrohydrodynamics (EHD)-based, centrifugation-based, and template-based methods have been recently suggested to overcome this limitation...
January 17, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28101126/characterisation-of-microbial-communities-within-aggressive-prostate-cancer-tissues
#8
Melissa A Yow, Sepehr N Tabrizi, Gianluca Severi, Damien M Bolton, John Pedersen, Graham G Giles, Melissa C Southey
BACKGROUND: An infectious aetiology for prostate cancer has been conjectured for decades but the evidence gained from questionnaire-based and sero-epidemiological studies is weak and inconsistent, and a causal association with any infectious agent is not established. We describe and evaluate the application of new technology to detect bacterial and viral agents in high-grade prostate cancer tissues. The potential of targeted 16S rRNA gene sequencing and total RNA sequencing was evaluated in terms of its utility to characterise microbial communities within high-grade prostate tumours...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28099120/the-clinical-significance-of-platelet-microparticle-associated-micrornas
#9
Patrick Provost
Circulating blood platelets play a central role in the maintenance of hemostasis. They adhere to subendothelial extracellular matrix proteins that become exposed upon vessel wall damage, which is followed by platelet activation, further platelet recruitment, platelet aggregation and formation of an occlusive, or non-occlusive, platelet thrombus. Platelets host a surprisingly diverse transcriptome, which is comprised of ~9500 messenger RNAs (mRNAs) and different classes of non-coding RNAs, including microRNAs, as well as a significant repertoire of proteins that contribute to their primary (adhesion, aggregation, granule secretion) and alternative (RNA transfer, mRNA translation, immune regulation) functions...
January 18, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28098417/delivery-of-anesthesia-for-children-with-mucopolysaccharidosis-type-iii-sanfilippo-syndrome-a-review-of-86-anesthetics
#10
Marc A Cohen, Grant M Stuart
BACKGROUND: Sanfilippo syndrome (MPS III) is rare, with 97 cases in the United Kingdom between 1988 and 1998. Mucopolysaccharide infiltration of tissues in mucopolysaccharidosis (MPS) causes multi-systemic pathology including difficult airways and cardiac disease. Published anesthesia case reviews of Sanfilippo syndrome have included limited numbers of patients to date. AIM: To identify the perioperative management and complications of anesthesia in children with mucopolysaccharidosis Type III at Great Ormond Street Hospital...
January 18, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28096000/effects-of-oral-care-with-glutamine-in-preventing-ventilator-associated-pneumonia-in-neurosurgical-intensive-care-unit-patients
#11
Hatice Kaya, Yüksel Turan, Yusuf Tunalı, Gülsün Özdemir Aydın, Neslihan Yüce, Şengül Gürbüz, Keziban Tosun
PURPOSE: The study was designed as a randomized, controlled, experimental study aiming to determine the effects of oral care with glutamine in preventing ventilator-associated pneumonia in patients admitted to neurosurgical intensive care unit. METHODS: The universe consisted of patients who are admitted to neurosurgical intensive care unit between January 2014 and August 2015, while the sample consisted of 88 patients who fulfilled the inclusion criteria and were randomly selected...
February 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28094653/associate-move-is-about-years-of-poor-decisions-not-improving-care
#12
Jane Bates
Physician associates, nursing associates - before long everyone will be associated with their job without being fully qualified to do it. Will we have associate managers? Associate MPs? The whole thing is quite odd.
January 4, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28092382/a-vascularized-and-perfused-organ-on-a-chip-platform-for-large-scale-drug-screening-applications
#13
Duc T T Phan, Xiaolin Wang, Brianna M Craver, Agua Sobrino, Da Zhao, Jerry C Chen, Lilian Y N Lee, Steven C George, Abraham P Lee, Christopher C W Hughes
There is a growing awareness that complex 3-dimensional (3D) organs are not well represented by monolayers of a single cell type - the standard format for many drug screens. To address this deficiency, and with the goal of improving screens so that drugs with good efficacy and low toxicity can be identified, microphysiological systems (MPS) are being developed that better capture the complexity of in vivo physiology. We have previously described an organ-on-a-chip platform that incorporates perfused microvessels, such that survival of the surrounding tissue is entirely dependent on delivery of nutrients through the vessels...
January 16, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28092090/prevalence-of-mucopolysaccharidosis-types-i-ii-and-vi-in-the-pediatric-and-adult-population-with-carpal-tunnel-syndrome-cts-retrospective-and-prospective-analysis-of-patients-treated-for-cts
#14
Mette Borch Nørmark, Nanna Kjaer, Allan Meldgaard Lund
BACKGROUND: We wanted to investigate whether the prevalence of mucopolysaccharidoses (MPS) I, II, and VI was higher than expected in a selected cohort of patients with carpal tunnel syndrome (CTS). CTS is a common finding in patients with MPS, and therefore we screened patients who had undergone surgery for CTS for undiagnosed MPS. PATIENTS AND METHODS: Patients who had been operated for CTS were found in databases from two hospitals. Furthermore, patients who had undergone surgery for CTS when under the age of 18 were retrieved from the National Patient Registry...
January 17, 2017: JIMD Reports
https://www.readbyqxmd.com/read/28091969/quality-of-life-as-predictor-for-the-development-of-cardiac-ischemia-in-high-risk-asymptomatic-diabetic-patients
#15
Philip Haaf, Myriam Ritter, Leticia Grize, Matthias E Pfisterer, Michael J Zellweger
BACKGROUND: Ischemia induced by psychological stress and depression is a common phenomenon in stable coronary artery disease (CAD). We evaluated the quality of life (QoL) of diabetic patients screened for CAD and assessed the prognostic value of mental and physical QoL scores to predict the development of new cardiac ischemia. METHODS: Prospective multicentre outcome study. The study comprised 400 asymptomatic diabetic patients without history or symptoms of CAD...
January 13, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28090484/mesenchymal-stromal-cells-in-myeloid-malignancies
#16
REVIEW
Thomas Schroeder, Stefanie Geyh, Ulrich Germing, Rainer Haas
Myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) are clonal myeloid disorders characterized by hematopoietic insufficiency. As MDS and AML are considered to originate from genetic and molecular defects of hematopoietic stem and progenitor cells (HSPC), the main focus of research in this field has focused on the characterization of these cells. Recently, the contribution of BM microenvironment to the pathogenesis of myeloid malignancies, in particular MDS and AML has gained more interest. This is based on a better understanding of its physiological role in the regulation of hematopoiesis...
December 2016: Blood Research
https://www.readbyqxmd.com/read/28089783/characterization-of-rat-or-human-hepatocytes-cultured-in-microphysiological-systems-mps-to-identify-hepatotoxicity
#17
Shih-Yu Chang, Jenna L Voellinger, Kirk P Van Ness, Brian Chapron, Rachel M Shaffer, Thomas Neumann, Collin C White, Terrance J Kavanagh, Edward J Kelly, David L Eaton
The liver is the main site for drug and xenobiotics metabolism, including inactivation or bioactivation. In order to improve the predictability of drug safety and efficacy in clinical development, and to facilitate the evaluation of the potential human health effects from exposure to environmental contaminants, there is a critical need to accurately model human organ systems such as the liver in vitro. We are developing a microphysiological system (MPS) based on a new commercial microfluidic platform (Nortis, Inc...
January 12, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28089550/assessment-of-microplastic-sorbed-contaminant-bioavailability-through-analysis-of-biomarker-gene-expression-in-larval-zebrafish
#18
Victoria A Sleight, Adil Bakir, Richard C Thompson, Theodore B Henry
Microplastics (MPs) are prevalent in marine ecosystems. Because toxicants (termed here "co-contaminants") can sorb to MPs, there is potential for MPs to alter co-contaminant bioavailability. Our objective was to demonstrate sorption of two co-contaminants with different physicochemistries [phenanthrene (Phe), log10Kow=4.57; and 17α-ethinylestradiol (EE2), log10Kow=3.67] to MPs; and assess whether co-contaminant bioavailability was increased after MP settlement. Bioavailability was indicated by gene expression in larval zebrafish...
January 12, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28088464/microparticles-inflammatory-and-haemostaticbiomarkers-in-polycystic-ovary-syndrome
#19
L M L Carvalho, C N Ferreira, M O Sóter, M F Sales, K F Rodrigues, S R Martins, A L Candido, F M Reis, I O Silva, F M F Campos, K B Gomes
Polycystic Ovary Syndrome (PCOS) is associated with a chronic low-grade inflammation and predisposition to hemostatic and atherosclerotic complications. This case-control study evaluated the microparticles (MPs) profile in patients with the PCOS and related these MPs to clinical and biochemical parameters. MPs derived from platelets (PMPs), leuckocytes (LMPs) and endothelial cells (EMPs) were evaluated, as well as MPs expressing tissue factor (TFMPs), by flow cytometry, comparing women with PCOS (n = 50) and a healthy control group (n = 50)...
January 11, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28088454/alpha-l-iduronidase-and-arylsulfatase-b-in-dried-blood-spots-on-filter-paper-biochemical-parameters-and-time-stability
#20
Ana Carolina Breier, Jaqueline Cé, Jamila Mezzalira, Vanessa V Daitx, Vitoria C Moraes, Mariana P S Goldim, Janice C Coelho
BACKGROUND: The goal of this study was to assess the biochemical parameters of the enzymes α-l-iduronidase (IDUA) and arylsulfatase B (ASB), which are deficient in mucopolysaccharidosis (MPS) I and VI, respectively, in dried blood spot (DBS) samples impregnated on filter paper. METHODS AND RESULTS: The optimal pH, Km, and Vmax of IDUA and ASB in DBS are hereby presented. After these analyses, the reference values for the activities of these enzymes in DBS with cutoff of 3...
January 11, 2017: Clinical Biochemistry
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