keyword
MENU ▼
Read by QxMD icon Read
search

aggregation

keyword
https://www.readbyqxmd.com/read/29346587/are-root-cause-analyses-recommendations-effective-and-sustainable-an-observational-study
#1
Peter D Hibbert, Matthew J W Thomas, Anita Deakin, William B Runciman, Jeffrey Braithwaite, Stephanie Lomax, Jonathan Prescott, Glenda Gorrie, Amy Szczygielski, Tanja Surwald, Catherine Fraser
Objective: To assess the strength of root cause analysis (RCA) recommendations and their perceived levels of effectiveness and sustainability. Design: All RCAs related to sentinel events (SEs) undertaken between the years 2010 and 2015 in the public health system in Victoria, Australia were analysed. The type and strength of each recommendation in the RCA reports were coded by an expert patient safety classifier using the US Department of Veteran Affairs type and strength criteria...
January 16, 2018: International Journal for Quality in Health Care
https://www.readbyqxmd.com/read/29346560/aggregation-and-travelling-wave-dynamics-in-a-two-population-model-of-cancer-cell-growth-and-invasion
#2
Vasiliki Bitsouni, Dumitru Trucu, Mark A J Chaplain, Raluca Eftimie
Cells adhere to each other and to the extracellular matrix (ECM) through protein molecules on the surface of the cells. The breaking and forming of adhesive bonds, a process critical in cancer invasion and metastasis, can be influenced by the mutation of cancer cells. In this paper, we develop a nonlocal mathematical model describing cancer cell invasion and movement as a result of integrin-controlled cell-cell adhesion and cell-matrix adhesion, for two cancer cell populations with different levels of mutation...
January 15, 2018: Mathematical Medicine and Biology: a Journal of the IMA
https://www.readbyqxmd.com/read/29346421/the-absence-of-specific-yeast-heat-shock-proteins-leads-to-abnormal-aggregation-and-compromised-autophagic-clearance-of-mutant-huntingtin-proteins
#3
Ryan Higgins, Marie-Helene Kabbaj, Alexa Hatcher, Yanchang Wang
The functionality of a protein depends on its correct folding, but newly synthesized proteins are susceptible to aberrant folding and aggregation. Heat shock proteins (HSPs) function as molecular chaperones that aid in protein folding and the degradation of misfolded proteins. Trinucleotide (CAG) repeat expansion in the Huntingtin gene (HTT) results in the expression of misfolded Huntingtin protein (Htt), which contributes to the development of Huntington's disease. We previously found that the degradation of mutated Htt with polyQ expansion (Htt103QP) depends on both ubiquitin proteasome system and autophagy...
2018: PloS One
https://www.readbyqxmd.com/read/29346147/hypoperfusion-and-wound-healing-another-dimension-of-wound-assessment
#4
Wendy Smollock, Paul Montenegro, Amy Czenis, Yuan He
OBJECTIVE: To examine the correlation between mean arterial pressure (MAP) and wound healing indices and describe an analytical process that can be used accurately and prospectively when evaluating all types of skin ulcerations. METHODS: A correlational study in a long-term-care facility.Participants (N = 230) were adults residing in a long-term-care facility with an average age of 77.8 years (range, 35-105). MAIN OUTCOME MEASURES: Assessment through both an index of wound healing and wound surface area...
February 2018: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29345900/high-performance-ga2o3-anode-for-lithium-ion-batteries
#5
Xun Tang, Xin Huang, Yongmin Huang, Yong Gou, James Pastore, Yao Yang, Yin Xiong, Jiangfeng Qian, Joel D Brock, Juntao Lu, Li Xiao, Héctor D Abruña, Lin Zhuang
There is a great deal of interest in developing battery systems that can exhibit self-healing behavior, thus enhancing cycleability. Given that gallium (Ga) is a metal that melts near room temperature, we wanted to test if it could be employed as a self-healing anode material for lithium ion batteries (LIBs). However, Ga nanoparticles (NPs), when directly applied, tended to aggregate upon charge/discharge cycling. To address this issue, we employed carbon-coated Ga2O3 NPs as an alternative. By controlling the pH of the precursor solution, highly dispersed and ultra-fine Ga2O3 NPs, embedded in carbon shells, could be synthesized through a hydrothermal carbonization (HTC) method...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29345897/design-synthesis-and-biological-evaluation-of-1-benzylamino-2-hydroxyalkyl-derivatives-as-new-potential-disease-modifying-multifunctional-anti-alzheimer-s-agents
#6
Dawid Panek, Anna Więckowska, Jakub Jończyk, Justyna Godyń, Marek W Bajda, Tomasz Wichur, Anna Pasieka, Damijan Knez, Anja Pislar, Jan Korabecny, Ondrej Soukup, Vendula Sepsova, Raimon Sabaté, Janko Kos, Stanislav Gobec, Barbara Malawska
The multitarget approach is a promising paradigm in drug discovery, potentially leading to new treatment options for complex disorders, such as Alzheimer's disease. Herein, we present the discovery of a unique series of 1-benzylamino-2-hydroxyalkyl derivatives combining inhibitory activity against butyrylcholinesterase, β-secretase, β-amyloid and tau protein aggregation, all related to mechanisms which underpin Alzheimer's disease. Notably, diphenylpropylamine derivative 10 showed balanced activity against both disease-modifying targets - inhibition of β-secretase (IC50 hBACE-1 = 41...
January 18, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29345701/effects-of-particle-size-and-annealing-on-plasmon-induced-charge-separation-at-self-assembled-gold-nanoparticle-arrays
#7
Kun-Che Kao, Hiroyasu Nishi, Tetsu Tatsuma
Two-dimensional periodic Au nanoparticle arrays were constructed on TiO2 thin films by a micelle lithography method and seed-mediated photoelectrochemical growth. Their adjustable interparticle distance allows investigation of a particle size effect on plasmon-induced charge separation (PICS) efficiencies without interference from particle aggregation or plasmon coupling. External or internal PICS efficiencies were found to increase and decrease, respectively, with an increase in particle diameter from 25 to 38 nm...
January 18, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29345489/seymour-sy-epstein-1924-2016
#8
Edward O'Brien, Jean O'Brien, Everett Waters
Presents an obituary for Seymour (Sy) Epstein, who passed away in Amherst on May 20, 2016. Epstein was a significant voice in personality psychology for more than six decades. His wide-ranging, programmatic research addressed cognitive mediation of classical conditioning, stress and coping, the self-concept, drive, conflict, and psychopathology. His research on aggregation strongly influenced the person-situation debate. His most important contribution was his decades-long development of an integrated personality theory, culminating in his magnum opus, Cognitive-Experiential Theory (Oxford University Press, 2014)...
January 2018: American Psychologist
https://www.readbyqxmd.com/read/29345424/a-fluorescence-based-sensor-assay-that-monitors-general-protein-aggregation-in-human-cells
#9
Marisa Pereira, Diogo Tomé, Ana S Domingues, Ana S Varanda, Cristiana Paulo, Manuel A S Santos, Ana R Soares
Protein conformational disorders are characterized by disruption of protein folding and toxic accumulation of protein aggregates. Here we describe a sensitive and simple method to follow and monitor general protein aggregation in human cells. Heat shock protein 27 (HSP27) is an oligomeric small heat shock protein that binds and keeps unfolded proteins in a folding competent state. This high specificity of HSP27 for aggregated proteins can be explored to monitor aggregation in living cells by fusing it to a fluorescent protein as Green Fluorescent Protein (GFP)...
January 18, 2018: Biotechnology Journal
https://www.readbyqxmd.com/read/29345378/self-calibrating-mechanochromic-fluorescent-polymers-based-on-encapsulated-excimer-forming-dyes
#10
Céline Calvino, Anirvan Guha, Christoph Weder, Stephen Schrettl
While mechanochemical transduction principles are omnipresent in nature, mimicking these in artificial materials is challenging. The ability to reliably detect the exposure of man-made objects to mechanical forces is, however, of great interest for many applications, including structural health monitoring and tamper-proof packaging. A useful concept to achieve mechanochromic responses in polymers is the integration of microcapsules, which rupture upon deformation and release a payload causing a visually detectable response...
January 18, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29345346/galectin-3-type-c-self-association-on-neutrophil-surfaces-the-carbohydrate-recognition-domain-regulates-cell-function
#11
Martina Sundqvist, Amanda Welin, Jonas Elmwall, Veronica Osla, Ulf J Nilsson, Hakon Leffler, Johan Bylund, Anna Karlsson
Galectin-3 is an endogenous β-galactoside-binding lectin comprising a carbohydrate recognition domain (CRD) linked to a collagen-like N-domain. Both domains are required for galectin-3 to induce cellular effects; a C-terminal fragment of galectin-3, galectin-3C, containing the CRD but lacking the N-domain, binds cell surface glycoconjugates but does not induce cellular effects since cross-linking promoted by the N-domain is thought to be required. Instead, galectin-3C is proposed to antagonize the effects of galectin-3 by competing for binding sites...
January 10, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345272/preparation-of-eu-iii-acetylacetonate-doped-well-defined-titania-particles-with-efficient-photoluminescence-properties
#12
Kota Shiba, Takuya Kataoka, Motohiro Tagaya
The aggregation/dispersion of luminescent species is a critical factor that determines their luminescence properties. In this study, europium(iii) acetylacetonate (Eu(acac)3) was doped into a titania matrix to form Eu(acac)3-doped titania particles with well-defined size and shape through a microreactor-based sol-gel approach. The morphology and structure of the as-synthesized products were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy and X-ray diffraction measurements...
January 18, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29344893/profiling-tumor-infiltrating-immune-cells-with-cibersort
#13
Binbin Chen, Michael S Khodadoust, Chih Long Liu, Aaron M Newman, Ash A Alizadeh
Tumor infiltrating leukocytes (TILs) are an integral component of the tumor microenvironment and have been found to correlate with prognosis and response to therapy. Methods to enumerate immune subsets such as immunohistochemistry or flow cytometry suffer from limitations in phenotypic markers and can be challenging to practically implement and standardize. An alternative approach is to acquire aggregative high dimensional data from cellular mixtures and to subsequently infer the cellular components computationally...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29344838/association-between-human-brucellosis-and-adverse-pregnancy-outcome-a-cross-sectional-population-based-study
#14
Nesrin Ghanem-Zoubi, Silvia Pessah Eljay, Emilia Anis, Mical Paul
To investigate the association between the incidence of human brucellosis (HB) and adverse pregnancy outcomes (APOs), a population-based, cross-sectional aggregate data study was conducted in Israel between 2010 and 2014. HB-endemic localities were matched by ethnicity, population size and socioeconomic status to localities with a low incidence of HB. We compared APO rates in high-incidence vs low-incidence localities. The primary outcome was intrauterine fetal demise (IUFD). Secondary outcomes were premature birth (less than 37 weeks), early or threatened labour and poor fetal growth...
January 17, 2018: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29344733/linking-intraspecific-trait-variability-and-spatial-patterns-of-subtropical-trees
#15
En-Rong Yan, Liu-Li Zhou, Han Y H Chen, Xi-Hua Wang, Xiang-Yu Liu
The importance of intraspecific trait variability (ITV) to the spatial distribution of individual species is unclear. We hypothesized that intraspecific trait dispersions underlying niche processes deviate more from null model expectations, by reducing their spread (range and variance), kurtosis, and standard deviation of near-neighbor distance, for species with aggregated than those with random distributions. The link between species' spatial distributions and ITV patterns was examined using an individual tree-based trait data set, in which specific leaf area, mean leaf area, leaf dry matter content, and diameter at breast height were measured for 18,773 stems of 45 species in a 4...
January 17, 2018: Oecologia
https://www.readbyqxmd.com/read/29344622/barriers-to-and-facilitators-of-implementing-enhanced-recovery-pathways-using-an-implementation-framework-a-systematic-review
#16
Alexander B Stone, Christina T Yuan, Michael A Rosen, Michael C Grant, Lauren E Benishek, Elizabeth Hanahan, Lisa H Lubomski, Clifford Ko, Elizabeth C Wick
Importance: Enhanced recovery pathways (ERPs) have the potential to reduce length of hospital stay, costs, and complications following surgery but can be challenging to implement. Objective: To examine the body of literature on ERPs to assess how authors describe barriers and facilitators of ERP implementation and identify, in aggregate, the best practices that should be considered utilizing the Consolidated Framework for Implementation Research (CFIR) to extract these elements and summarize common barriers and facilitators according to its 5 major domains: (1) intervention characteristics, (2) inner setting, (3) outer setting, (4) characteristics of the individuals, and (5) the process of implementation...
January 17, 2018: JAMA Surgery
https://www.readbyqxmd.com/read/29344564/endoscopic-ultrasound-guided-needle-based-confocal-laser-endomicroscopy-in-solid-pancreatic-masses-a-prospective-validation-study
#17
John Gásdal Karstensen, Tatiana Cârţână, Codruţa Constantinescu, Silviu Dumitrașcu, Bojan Kovacevic, Pia Klausen, Hazem Hassan, Tobias Wirenfeldt Klausen, Helga Bertani, Manoop S Bhutani, Adrian Săftoiu, Peter Vilmann
Background and study aims:  Endoscopic ultrasound fine-needle aspiration (EUS-FNA) is a keystone in diagnosing and staging of pancreatic masses. Recently, a microfiber that can pass through a 19-gauge needle has been introduced for confocal laser endomicroscopy (nCLE). The aims of this study were to evaluate the diagnostic value and the reproducibility of nCLE criteria for solid malignant lesions. Patients and methods:  This prospective dual-center study included patients with pancreatic masses suspicious of malignancy referred for EUS-FNA...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29344483/retinoinvasive-uveal-melanoma-report-of-2-cases-and-review-of-the-literature
#18
John P Gorham, Eszter Szalai, Jill R Wells, Hans E Grossniklaus
Purpose: To describe the clinical history and histopathologic findings of 2 cases of retinoinvasive uveal melanoma. Methods: The medical records and pathology specimens of 2 patients with retinoinvasive uveal melanoma were reviewed. Results: The first patient had an iris/ciliary body melanoma that was treated and the second patient had suspected iridocorneal endothelial syndrome. Both patients developed a blind, painful eye; the first patient's right eye was enucleated and the left eye of the second patient underwent evisceration...
November 2017: Ocular Oncology and Pathology
https://www.readbyqxmd.com/read/29344278/potent-peptide-conjugated-silicon-phthalocyanines-for-tumor-photodynamic-therapy
#19
Qian Liu, Mingpei Pang, Sihai Tan, Jin Wang, Qingle Chen, Kai Wang, Wenjie Wu, Zhangyong Hong
Phthalocyanines (Pcs) are a group of promising photosensitizers for use in photodynamic therapy (PDT). However, their extremely low solubility and their strong tendency to aggregate in aqueous solution greatly restrict their application. Conjugation of Pc macrocycles with peptide ligands could be a very useful strategy to optimize the physical properties of Pcs not only by increasing their water solubility and reducing their aggregation but also by endowing the conjugates with a tumor-targeting capability. To develop highly potent photosensitizers for tumor PDT, we prepared new peptide-conjugated photosensitizers using silicon Pc (SiPc), which has much higher photodynamic activity than zinc Pcs, as the light activation moiety and the cRGDfK peptide (or simply cRGD) as the peptide moiety...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29343957/codelivery-of-doxorubicin-and-mdr1-sirna-by-mesoporous-silica-nanoparticles-polymerpolyethylenimine-to-improve-oral-squamous-carcinoma-treatment
#20
Dandan Wang, Xiaowei Xu, Kai Zhang, Bin Sun, Lu Wang, Lin Meng, Qilin Liu, Changyu Zheng, Bai Yang, Hongchen Sun
Oral cancer is a type of head and neck cancer that is the seventh most frequent cancer and the ninth most frequent cause of death globally. About 90% of oral cancer is of squamous cell carcinoma type. Surgery and radiation with and without chemotherapy are the major treatments for oral cancer. Better advanced treatment is still needed. Multidrug resistance plays an important role in failure of oral cancer chemotherapy. In this study, we tried to fabricate a novel nanoparticle that could carry both MDR1-siRNA to block MDR1 expression and doxorubicin (DOX), a chemotherapy drug, into cancer cells in order to directly kill the cells with little or no effect of multidrug resistance...
2018: International Journal of Nanomedicine
keyword
keyword
18556
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"