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https://www.readbyqxmd.com/read/27909399/a-subset-of-autism-associated-genes-regulate-the-structural-stability-of-neurons
#1
REVIEW
Yu-Chih Lin, Jeannine A Frei, Michaela B C Kilander, Wenjuan Shen, Gene J Blatt
Autism spectrum disorder (ASD) comprises a range of neurological conditions that affect individuals' ability to communicate and interact with others. People with ASD often exhibit marked qualitative difficulties in social interaction, communication, and behavior. Alterations in neurite arborization and dendritic spine morphology, including size, shape, and number, are hallmarks of almost all neurological conditions, including ASD. As experimental evidence emerges in recent years, it becomes clear that although there is broad heterogeneity of identified autism risk genes, many of them converge into similar cellular pathways, including those regulating neurite outgrowth, synapse formation and spine stability, and synaptic plasticity...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27909276/-closure-of-ascending-aortic-entry-by-debranching-endovascular-management-in-an-elderly-patient-with-acute-stanford-type-a-dissection
#2
Munehiro Saiki, Keiji Yunoki, Naoya Sakoda, Shigeru Hattori, Gaku Uchino, Takuya Kawabata, Yasufumi Fujita, Kunikazu Hisamochi, Hideo Yoshida
An 85-year-old woman was hospitalized by emergency for an acute Stanford type A aortic dissection. Computed tomography showed a primary entry on the ascending aorta and pericardial effusion. Although her hemodynamics was unstable due to cardiac shock, her family wished no open surgery considering her age and frailty. A couple of days later, her condition became stabilized with antihypertensive therapy. Since the dissection was limited within the ascending aorta, closure of the entry with the stentgraft was considered appropriate and much less invasive as compared with an open surgery...
December 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27908332/prehospital-sepsis-care
#3
REVIEW
Jerrilyn Jones, Benjamin J Lawner
Prehospital care providers are tasked with the delivery of time-sensitive care, and emergency medical services (EMS) systems must match patients to appropriate clinical resources. Modern systems are uniquely positioned to recognize and treat patients with sepsis. Interventions such as administration of intravenous fluid and transporting patients to the appropriate level of definitive care are linked to improved patient outcomes. As EMS systems refine their protocols for the recognition and stabilization of patients with suspected or presumed sepsis, EMS providers need to be educated about the spectrum of sepsis-related presentations and treatment strategies need to be standardized...
February 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/27906411/mental-health-emergencies-in-paediatric-services-characteristics-diagnostic-stability-and-gender-differences
#4
Montserrat Porter, Rebeca Gracia, Joan-Carles Oliva, Montserrat Pàmias, Gemma Garcia-Parés, Jesús Cobo
INTRODUCTION: Child and adolescent psychiatric emergencies have increased in recent years. The main objective of our study is to analyze sociodemographic and clinical characteristics of psychiatric emergencies under 18 years old that came to our hospital. Secondary objectives were to study diagnostic stability made in the emergency department and undertake a gender analysis. METHODS: Descriptive cross-sectional study of patients attending the pediatric emergency department who required consultation to psychiatry service during 2010 and 2011, comparing data with two previous cross-sectional cuts (2002-2003 and 2006-2007)...
November 2016: Actas Españolas de Psiquiatría
https://www.readbyqxmd.com/read/27906396/gadolinium-oxysulfide-coated-gold-nanorods-with-improved-stability-and-dual-modal-magnetic-resonance-photoacoustic-imaging-contrast-enhancement-for-cancer-theranostics
#5
Tao Guo, Yan Lin, Zhi Li, Shan Chen, Guoming Huang, Huirong Lin, Jun Wang, Gang Liu, Huang-Hao Yang
Gold nanorods (GNRs) are emerging as a promising nanoplatform for cancer theranostics because of their unique optical properties. However, they still suffer from many limitations, such as high cytotoxicity, low thermodynamic and biological stability, and a tedious process for integrating other imaging modalities, for further practical biomedical applications. In this work, a strategy by one-step coating of Gd2O2S around GNRs is reported to address these limitations of GNRs. After the coating of the Gd2O2S shell, the as-fabricated Gd2O2S coated GNRs (GNRs@Gd2O2S) show enhanced biocompatibility and photostability, and tunable localized surface plasmon resonance...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27906389/emulation-of-synaptic-metaplasticity-in-memristors
#6
Xiaojian Zhu, Chao Du, YeonJoo Jeong, Wei D Lu
Recent studies have shown that nanoionic-based memristors can offer rich internal dynamics during ion movement that enables these solid-state devices to emulate various synaptic functions in biological systems naturally. The experimental observations can be explained within the 2nd-order memristor theoretical framework, which states that the device conductance (weight) can be determined by multiple internal state variables that can be modulated at different time scales and lead to different activity-dependent synaptic behaviors...
December 1, 2016: Nanoscale
https://www.readbyqxmd.com/read/27904783/circulating-mirna-profile-in-esophageal-adenocarcinoma
#7
Keqiang Zhang, Xiwei Wu, Jinhui Wang, Joshua Lopez, Weiying Zhou, Lu Yang, Shizhen Emily Wang, Dan J Raz, Jae Y Kim
Esophageal cancer is one of the deadliest cancers worldwide. It typically has a poor overall prognosis because of diagnosis in advanced stages. Sensitive biomarkers for the early detection of esophageal cancer are urgently needed to reduce the high mortality of this disease. Circulating microRNAs (miRNAs) are emerging as a novel non-invasive biomarker for cancer diagnosis due to its high stability and specificity. In this study, we profiled circulating miRNAs in serum of patients with esophageal adenocarcinoma (EAC) using the Solexa sequencing analysis...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27904766/the-role-of-pim1-in-the-ibrutinib-resistant-abc-subtype-of-diffuse-large-b-cell-lymphoma
#8
Hsu-Ping Kuo, Scott A Ezell, Sidney Hsieh, Karl J Schweighofer, Leo Wk Cheung, Shiquan Wu, Mutiah Apatira, Mint Sirisawad, Karl Eckert, Yu Liang, Jeff Hsu, Chun-Te Chen, Darrin Beaupre, Betty Y Chang
Diffuse large B cell lymphoma (DLBCL) is a heterogeneous lymphoma and the most common subtype of non-Hodgkin lymphoma, accounting for roughly 30% of newly diagnosed cases in the United States. DLBCL can be separated into the activated B cell-like (ABC) and germinal center B cell-like (GCB) subtypes, with distinct gene expression profiles, oncogenic aberrations, and clinical outcomes. ABC-DLBCL is characterized by chronically active B-cell receptor (BCR) signaling that can be modulated by Bruton's tyrosine kinase (BTK) activity...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27903893/identification-of-a-novel-k311-ubiquitination-site-critical-for-androgen-receptor-transcriptional-activity
#9
Urszula L McClurg, David M W Cork, Steven Darby, Claudia A Ryan-Munden, Sirintra Nakjang, Leticia Mendes Côrtes, Achim Treumann, Luke Gaughan, Craig N Robson
The androgen receptor (AR) is the main driver of prostate cancer (PC) development and progression, and the primary therapeutic target in PC. To date, two functional ubiquitination sites have been identified on AR, both located in its C-terminal ligand binding domain (LBD). Recent reports highlight the emergence of AR splice variants lacking the LBD that can arise during disease progression and contribute to castrate resistance. Here, we report a novel N-terminal ubiquitination site at lysine 311. Ubiquitination of this site plays a role in AR stability and is critical for its transcriptional activity...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27903783/uncovering-the-mechanisms-of-caenorhabditis-elegans-ageing-from-global-quantification-of-the-underlying-landscape
#10
Lei Zhao, Jin Wang
Recent studies on Caenorhabditis elegans reveal that gene manipulations can extend its lifespan several fold. However, how the genes work together to determine longevity is still an open question. Here we construct a gene regulatory network for worm ageing and quantify its underlying potential and flux landscape. We found ageing and rejuvenation states can emerge as basins of attraction at certain gene expression levels. The system state can switch from one attractor to another driven by the intrinsic or external perturbations through genetics or the environment...
November 2016: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/27902947/what-factors-affect-implementation-of-early-rehabilitation-into-intensive-care-unit-practice-a-qualitative-study-with-clinicians
#11
Selina M Parry, Louisa Remedios, Linda Denehy, Laura D Knight, Lisa Beach, Thomas C Rollinson, Sue Berney, Zudin A Puthucheary, Peter Morris, Catherine L Granger
PURPOSE: To identify the barriers and enablers that influence clinicians' implementation of early rehabilitation in critical care. MATERIALS AND METHODS: Qualitative study involving 26 multidisciplinary participants who were recruited using purposive sampling. Four focus groups were conducted using semistructured questions to explore attitudes, beliefs, and experiences. Data were transcribed verbatim and thematic analysis was performed. RESULTS: Six themes emerged, as follows: (1) the clinicians' expectations and knowledge (including rationale for rehabilitation, perceived benefits, and experience), (2) the evidence for and application of rehabilitation (including beliefs regarding when to intervene), (3) patient factors (including prognosis, sedation, delirium, cooperation, motivation, goals, and family), (4) safety considerations (including physiological stability and presence of devices or lines), (5) environmental influences (staffing, resources, equipment, time, and competing priorities), and (6) culture and teamwork...
November 12, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27901083/resveratrol-serves-as-a-protein-substrate-interaction-stabilizer-in-human-sirt1-activation
#12
Xuben Hou, David Rooklin, Hao Fang, Yingkai Zhang
Resveratrol is a natural compound found in red wine that has been suggested to exert its potential health benefit through the activation of SIRT1, a crucial member of the mammalian NAD(+)-dependent deacetylases. SIRT1 has emerged as an attractive therapeutic target for many aging related diseases, however, how its activity can only be activated toward some specific substrates by resveratrol has been poorly understood. Herein, by employing extensive molecular dynamics simulations as well as fragment-centric topographical mapping of binding interfaces, we have clarified current controversies in the literature and elucidated that resveratrol plays an important activation role by stabilizing SIRT1/peptide interactions in a substrate-specific manner...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900822/stimulus-responsive-nanoparticles-and-associated-reversible-polymorphism-via-polymerization-induced-self-assembly-pisa
#13
Yiwen Pei, Andrew B Lowe, Peter J Roth
Polymerization-induced self-assembly (PISA) is an extremely versatile method for the in situ preparation of soft-matter nanoparticles of defined size and morphologies at high concentrations, suitable for large-scale production. Recently, certain PISA-prepared nanoparticles have been shown to exhibit reversible polymorphism ("shape-shifting"), typically between micellar, worm-like, and vesicular phases (order-order transitions), in response to external stimuli including temperature, pH, electrolytes, and chemical modification...
November 30, 2016: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/27900417/definition-of-hemodynamic-stability-in-blunt-trauma-patients-a-systematic-review-and-assessment-amongst-dutch-trauma-team-members
#14
S A I Loggers, T W A Koedam, G F Giannakopoulos, E Vandewalle, M Erwteman, W P Zuidema
INTRODUCTION: Trauma is a great contributor to mortality worldwide. One of the challenges in trauma care is early identification and management of bleeding. The circulatory status of blunt trauma patients in the emergency room is evaluated using hemodynamic (HD) parameters. However, there is no consensus on which parameters to use. In this study, we evaluate the used terms and definitions in the literature for HD stability and compare those to the opinion of Dutch trauma team members...
November 30, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/27899918/mechanistic-basis-of-antimicrobial-actions-of-silver-nanoparticles
#15
REVIEW
Tikam Chand Dakal, Anu Kumar, Rita S Majumdar, Vinod Yadav
Multidrug resistance of the pathogenic microorganisms to the antimicrobial drugs has become a major impediment toward successful diagnosis and management of infectious diseases. Recent advancements in nanotechnology-based medicines have opened new horizons for combating multidrug resistance in microorganisms. In particular, the use of silver nanoparticles (AgNPs) as a potent antibacterial agent has received much attention. The most critical physico-chemical parameters that affect the antimicrobial potential of AgNPs include size, shape, surface charge, concentration and colloidal state...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27899303/gambogic-acid-counteracts-mutant-p53-stability-by-inducing-autophagy
#16
Giorgia Foggetti, Laura Ottaggio, Debora Russo, Paola Monti, Paolo Degan, Gilberto Fronza, Paola Menichini
Mutant p53 (mutp53) proteins are frequently present at higher levels than the wild-type (wt) protein in tumors, and some of them can acquire oncogenic properties. Consistently, knockdown of mutp53 protein in human cancer cell lines leads to reduced cell proliferation and invasion as well as to an increased sensitivity to some anticancer drugs. Therefore, the exploitation of cellular pathways and/or molecules that promote mutp53 degradation may have a therapeutic interest. Recently, autophagy is emerging as an important pathway involved in the stability of mutp53...
November 26, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27897237/bilayered-graphene-h-bn-with-folded-holes-as-new-nanoelectronic-materials-modeling-of-structures-and-electronic-properties
#17
Leonid A Chernozatonskii, Viсtor A Demin, Stefano Bellucci
The latest achievements in 2-dimensional (2D) material research have shown the perspective use of sandwich structures in nanodevices. We demonstrate the following generation of bilayer materials for electronics and optoelectronics. The atomic structures, the stability and electronic properties of Moiré graphene (G)/h-BN bilayers with folded nanoholes have been investigated theoretically by ab-initio DFT method. These perforated bilayers with folded hole edges may present electronic properties different from the properties of both graphene and monolayer nanomesh structures...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27895256/a-sr2-metal-organic-framework-with-high-chemical-stability-synthesis-crystal-structure-and-photoluminescence-property
#18
Yan-Yuan Jia, Xiao-Ting Liu, Wen-He Wang, Li-Zhu Zhang, Ying-Hui Zhang, Xian-He Bu
Metal-organic frameworks (MOFs) are typically built by assembly of metal centres and organic linkers, and have emerged as promising crystalline materials in a variety of fields. However, the stability of MOFs is a key limitation for their practical applications. Herein, we report a novel Sr 2+: -MOF [Sr4(Tdada)2(H2O)3(DMF)2] (denoted as NKU- 105: , NKU = Nankai University; H4Tdada = 5,5'-((thiophene-2,5-dicar bonyl)bis(azanediyl))diisophthalic acid; DMF = N,N-dimethylformamide) featuring an open square channel of about 6 Å along the c-axis...
January 13, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/27895035/microrna-210-enhances-fibrous-cap-stability-in-advanced-atherosclerotic-lesions
#19
Suzanne M Eken, Hong Jin, Ekaterina Chernogubova, Yuhuang Li, Nancy Simon, Changyan Sun, Greg Korzunowicz, Albert Busch, Alexandra Bäcklund, Cecilia Österholm, Anton Razuvaev, Thomas Renné, Hans-Henning Eckstein, Jaroslav Pelisek, Per Eriksson, Maria Gonzalez Diez, Ljubica P Matic Perisic, Isabel N Schellinger, Uwe Raaz, Nicholas J Leeper, Göran K Hansson, Gabrielle Paulsson-Berne, Ulf Hedin, Lars Maegdefessel
RATIONALE: In the search for markers and modulators of vascular disease, miRNAs have emerged as potent therapeutic targets. OBJECTIVE: To investigate miRNAs of clinical interest in patients with unstable carotid stenosis at risk of stroke. METHODS AND RESULTS: Utilizing patient material from the Biobank of Karolinska Endarterectomies (BiKE), we profiled miRNA expression in patients with stable vs unstable carotid plaque. A PCR-based miRNA array of plasma, sampled at the carotid lesion site, identified eight deregulated miRNAs (miR-15b, -29c, -30c/d, -150, -191, -210 and -500)...
November 28, 2016: Circulation Research
https://www.readbyqxmd.com/read/27893960/eukaryotic-dna-polymerases-in-homologous-recombination
#20
Mitch McVey, Varandt Y Khodaverdian, Damon Meyer, Paula Gonçalves Cerqueira, Wolf-Dietrich Heyer
Homologous recombination (HR) is a central process to ensure genomic stability in somatic cells and during meiosis. HR-associated DNA synthesis determines in large part the fidelity of the process. A number of recent studies have demonstrated that DNA synthesis during HR is conservative, less processive, and more mutagenic than replicative DNA synthesis. In this review, we describe mechanistic features of DNA synthesis during different types of HR-mediated DNA repair, including synthesis-dependent strand annealing, break-induced replication, and meiotic recombination...
November 23, 2016: Annual Review of Genetics
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