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https://www.readbyqxmd.com/read/29786829/meta-analysis-examining-the-epidemiology-of-clozapine-associated-neutropenia
#1
N Myles, H Myles, S Xia, M Large, S Kisely, C Galletly, R Bird, D Siskind
BACKGROUND: Clozapine is associated with life-threatening neutropenia. There are no previous meta-analyses of the epidemiology of clozapine-associated neutropenia. OBJECTIVES: To determine the cumulative incidence of mild, moderate and severe neutropenia, incidence of death related to severe neutropenia, case fatality rate of neutropenia and the longitudinal incidence of neutropenia following exposure to clozapine. DATA SOURCES: A systematic search of Medline, EMBASE and PsycINFO using search terms [clozapine OR clopine OR zaponex OR clozaril] AND [neutropenia OR agranulocytosis]...
May 21, 2018: Acta Psychiatrica Scandinavica
https://www.readbyqxmd.com/read/29786740/shear-density-coupling-for-a-compressible-single-component-yield-stress-fluid
#2
Markus Gross, Fathollah Varnik
Flow behavior of a single-component yield stress fluid is addressed on the hydrodynamic level. A basic ingredient of the model is a coupling between fluctuations of density and velocity gradient via a Herschel-Bulkley-type constitutive model. Focusing on the limit of low shear rates and high densities, the model approximates well-but is not limited to-gently sheared hard sphere colloidal glasses, where solvent effects are negligible. A detailed analysis of the linearized hydrodynamic equations for fluctuations and the resulting cubic dispersion relation reveals the existence of a range of densities and shear rates with growing flow heterogeneity...
May 22, 2018: Soft Matter
https://www.readbyqxmd.com/read/29786443/an-experimental-study-of-the-structural-effect-on-the-nanosecond-nonlinear-optical-response-of-o-doped-polycyclic-aromatic-hydrocarbons-pahs
#3
Ioannis Papadakis, Zoi Bouza, Aristeidis Stathis, Ioannis Orfanos, Stelios Couris, Tanja Miletić, Davide Bonifazi
The nonlinear optical response of some O-doped PAHs is systematically investigated in the present work aiming to understand the influence of structural effects on their nonlinear optical response. In that view, the third-order nonlinear optical properties of these PAHs were measured under 4 ns, visible (532 nm) and infrared (1064 nm) laser excitation. The O-doped PAHs were found exhibiting large saturable absorption and negative sign nonlinear refraction under visible excitation, both increasing with the addition of naphtalene units and with the number of O-atoms...
May 22, 2018: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29786414/uncovering-the-design-principle-of-amino-acid-derived-photoluminescent-bio-dots-with-tailored-made-structure-properties-and-application-for-cellular-bioimaging
#4
Hesheng Victor Xu, Xinting Zheng, Yanli Zhao, Yen Nee Tan
Natural amino acids possess side chains with different functional groups (R groups), which make them excellent precursors for programmable synthesis of biomolecule-derived nanodots (bio-dots) with desired properties. Herein, we reported the first systematic study to uncover the material design rules of bio-dots synthesis from 20 natural α-amino acids via a green hydrothermal approach. The as-synthesized amino acids bio-dots (AA-dots) are comprehensively characterised to establish a structure-properties relationship between the amino acid precursors and the corresponding photoluminescent properties of AA-dots...
May 22, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29785613/neuroinfections-caused-by-fungi
#5
REVIEW
Katarzyna Góralska, Joanna Blaszkowska, Magdalena Dzikowiec
BACKGROUND: Fungal infections of the central nervous system (FIs-CNS) have become significantly more common over the past 2 decades. Invasion of the CNS largely depends on the immune status of the host and the virulence of the fungal strain. Infections with fungi cause a significant morbidity in immunocompromised hosts, and the involvement of the CNS may lead to fatal consequences. METHODS: One hundred and thirty-five articles on fungal neuroinfection in PubMed, Google Scholar, and Cochrane databases were selected for review using the following search words: "fungi and CNS mycoses", CNS fungal infections", "fungal brain infections", " fungal cerebritis", fungal meningitis", "diagnostics of fungal infections", and "treatment of CNS fungal infections"...
May 21, 2018: Infection
https://www.readbyqxmd.com/read/29785233/therapeutic-outcome-of-intralesional-immunotherapy-in-cutaneous-warts-using-the-mumps-measles-and-rubella-vaccine-a-randomized-placebo-controlled-trial
#6
Guneet Awal, Simplepreet Kaur
Background: Various treatment modalities have been described in the literature for treating warts, but none thus far have demonstrated optimal results. Recently, the mumps, measles, and rubella (MMR) antigen has gained popularity because of its proven efficacy in the treatment of warts. Aim: The goal was to evaluate the efficacy and safety of intralesional MMR antigen in the treatment of cutaneous warts. Methods: Patients were divided into an MMR (study) group and a normal saline (control) group. Injections were administered into the single largest wart on each patient every two weeks...
May 2018: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29785220/physicochemical-and-microbiological-qualities-assessment-of-popular-bangladeshi-mango-fruit-juice
#7
Ruhul Amin, Shafkat S Rahman, Mahboob Hossain, Naiyyum Choudhury
Introduction: Mango juice has always been considered as a delicious, nutritious popular drink, but processed juice may not always be safe due to chemical and microbial risks. Determination of physicochemical and microbiological qualities of some packed mango juices of Bangladesh will help consumers to know the present scenario. Material and Methods: Six commercially available different juice samples were collected from the market. Carbohydrate profiles were determined using HPLC, crude protein content was calculated using the Kjeldahl method and other parameters were determined by standard AOAC methods...
2018: Open Microbiology Journal
https://www.readbyqxmd.com/read/29785128/methacholine-challenge-testing-comparative-pharmacology
#8
REVIEW
Beth E Davis, Christianne M Blais, Donald W Cockcroft
Standardization of the methacholine inhalation challenge, the most common direct bronchoprovocation test, is important. One aspect of standardization is the appropriate washout period for pharmacologic agents which affect the response. This review summarizes the available data on pharmacologic inhibition of the methacholine response. Specific (anti-muscarinic) agents demonstrate marked bronchoprotection (up to 7 days for the long-acting drugs) which lasts longer than the duration of bronchodilation. The functional antagonist (beta 2 agonist class of medications) shows marked, but less, bronchoprotection which is relatively short lived and is similar to the duration of bronchodilator efficacy...
2018: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/29784964/high-speed-photothermal-off-resonance-atomic-force-microscopy-reveals-assembly-routes-of-centriolar-scaffold-protein-sas-6
#9
Adrian P Nievergelt, Niccolò Banterle, Santiago H Andany, Pierre Gönczy, Georg E Fantner
The self-assembly of protein complexes is at the core of many fundamental biological processes 1 , ranging from the polymerization of cytoskeletal elements, such as microtubules 2 , to viral capsid formation and organelle assembly 3 . To reach a comprehensive understanding of the underlying mechanisms of self-assembly, high spatial and temporal resolutions must be attained. This is complicated by the need to not interfere with the reaction during the measurement. As self-assemblies are often governed by weak interactions, they are especially difficult to monitor with high-speed atomic force microscopy (HS-AFM) due to the non-negligible tip-sample interaction forces involved in current methods...
May 21, 2018: Nature Nanotechnology
https://www.readbyqxmd.com/read/29784528/-is-the-current-treatment-of-idiopathic-environmental-intolerance-negligent
#10
EDITORIAL
R J Regal Ramos
No abstract text is available yet for this article.
May 18, 2018: Semergen
https://www.readbyqxmd.com/read/29783926/neural-networks-for-link-prediction-in-realistic-biomedical-graphs-a-multi-dimensional-evaluation-of-graph-embedding-based-approaches
#11
Gamal Crichton, Yufan Guo, Sampo Pyysalo, Anna Korhonen
BACKGROUND: Link prediction in biomedical graphs has several important applications including predicting Drug-Target Interactions (DTI), Protein-Protein Interaction (PPI) prediction and Literature-Based Discovery (LBD). It can be done using a classifier to output the probability of link formation between nodes. Recently several works have used neural networks to create node representations which allow rich inputs to neural classifiers. Preliminary works were done on this and report promising results...
May 21, 2018: BMC Bioinformatics
https://www.readbyqxmd.com/read/29783923/the-doctor-negligence-and-causation-a-lawyer-s-exposition-to-doctors-scientists-and-lawyers
#12
Alec Samuels
The brief history of causation in medicine and science. The law. Setting the scene. Negligence but no causation. Duty to warn. PROGNOSIS: Loss of opportunity. Consecutive negligence. Indivisible injury. Unknown culprits. Obstetrics. The European Court of Justice. The future.
January 1, 2018: Medicine, Science, and the Law
https://www.readbyqxmd.com/read/29783778/anti-tumorigenic-and-anti-metastatic-activity-of-the-sponge-derived-marine-drugs-aeroplysinin-1-and-isofistularin-3-against-pheochromocytoma-in-vitro
#13
Nicole Bechmann, Hermann Ehrlich, Graeme Eisenhofer, Andre Ehrlich, Stephan Meschke, Christian G Ziegler, Stefan R Bornstein
Over 10% of pheochromocytoma and paraganglioma (PPGL) patients have malignant disease at their first presentation in the clinic. Development of malignancy and the underlying molecular pathways in PPGLs are poorly understood and efficient treatment strategies are missing. Marine sponges provide a natural source of promising anti-tumorigenic and anti-metastatic agents. We evaluate the anti-tumorigenic and anti-metastatic potential of Aeroplysinin-1 and Isofistularin-3, two secondary metabolites isolated from the marine sponge Aplysina aerophoba , on pheochromocytoma cells...
May 20, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29783776/layer-by-layer-heparinization-of-the-cell-surface-by-using-heparin-binding-peptide-functionalized-human-serum-albumin
#14
Guowei Song, Yaning Hu, Yusheng Liu, Rui Jiang
Layer-by-layer heparinization of therapeutic cells prior to transplantation is an effective way to inhibit the instant blood-mediated inflammatory reactions (IBMIRs), which are the major cause of early cell graft loss during post-transplantation. Here, a conjugate of heparin-binding peptide (HBP) and human serum albumin (HSA), HBP-HSA, was synthesized by using heterobifunctional crosslinker. After the first heparin layer was coated on human umbilical vein endothelial cells (HUVECs) by means of the HBP-polyethylene glycol-phospholipid conjugate, HBP-HSA and heparin were then applied to the cell surface sequentially to form multiple layers...
May 20, 2018: Materials
https://www.readbyqxmd.com/read/29783625/a-simple-alternative-method-for-preservation-of-2-methylisoborneol-in-water-samples
#15
Chun-Cheng Fan, Yi-Ting Chiu, Tsair-Fuh Lin
2-Methylisoborneol (2-MIB) is one of the most commonly observed taste and odor (T&O) compounds present in drinking water sources. As it is biodegradable, a preservation agent, typically mercury chloride, is needed if the water is not analyzed right after sampling. Since mercury is a toxic metal, an alternative chemical that is cheaper and less toxic is desirable. In this study, two chemicals commonly used in water treatment processes, chlorine (as sodium hypochlorite) and KMnO₄ (potassium permanganate), are studied to determine their feasibility as preservation agents for 2-MIB in water...
May 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29783262/-analysis-of-final-judgements-in-cases-of-medical-negligence-occurred-in-ukraine
#16
Valentyn V Franchuk, Svitlana V Trach Rosolovska, Petro R Selskyy, Anna Z Mykolenko, Petro Ya Bodnar
OBJECTIVE: Introduction: The peculiarities of the disadvantages of providing medical care in Ukraine are not well-known abroad. The aim: To study the peculiarities of court decisions in cases of unfavorable consequences of medical activity. PATIENTS AND METHODS: Materials and methods: The article analyzes the official data of the General Prosecutor's Office of Ukraine and the website of court decisions regarding criminal cases against medical practitioners. RESULTS: Review: Approximately 600 cases of alleged medical malpractice cases are registered annually in Ukraine...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783051/occurrence-and-potential-human-health-risks-of-semi-volatile-organic-compounds-in-drinking-water-from-cities-along-the-chinese-coastland-of-the-yellow-sea
#17
Zekai Li, Fangyu Chang, Peng Shi, Xun Chen, Feng Yang, Qing Zhou, Yang Pan, Aimin Li
Semi-volatile organic compounds (SVOCs) in drinking water have been considered a severe threat to public health worldwide. However, SVOC contamination and the associated human health risks of the drinking water from cities along tributaries of the Yangtze River and Huaihe River in China have been seldom reported. Here, we focused on the occurrence and distribution of a series of SVOCs, mainly including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and phthalate esters (PAEs), in drinking water of this region...
May 12, 2018: Chemosphere
https://www.readbyqxmd.com/read/29783023/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-infections-in-haematopoietic-stem-cell-transplant-recipients-epidemiology-and-molecular-characterization
#18
Molka Kharrat, Yosra Chebbi, Farah Ben Tanfous, Amel Lakhal, Saloua Ladeb, Tarek Ben Othmen, Wafa Achour
BACKGROUND: Extended spectrum β-lactamase producing Enterobacteriaceae (ESBL-E) are feared because they generate therapeutic difficulties and have high potential for dissemination. The purpose of our study was to investigate the epidemiology of these infections in hematopoietic stem cell transplant (HSCT) recipients and to determine the genes encoding ESBL. MATERIAL/METHODS: Our retrospective study concerned adult patients hospitalized at the National Bone Marrow Transplant Center and infected with ESBL-E post HSCT between january 2006 and december 2016...
May 18, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29782675/hierarchical-micro-nanostructures-from-human-hair-for-biomedical-applications
#19
Di-Wei Zheng, Sheng Hong, Lu Xu, Chu-Xin Li, Ke Li, Si-Xue Cheng, Xian-Zheng Zhang
With the prominent progress of biomedical engineering, materials with high biocompatibility and versatile functions are urgently needed. So far, hierarchical structures in nature have shed some light on the design of high performance materials both in concept and implementation. Inspired by these, the hierarchical micro-/nanostructures of human hair are explored and human hair is further broken into hierarchical microparticles (HMP) and hierarchical nanoparticles (HNP) with top-down procedures. Compared with commercialized carriers, such as liposomes or albumin nanoparticles, the obtained particles exhibit high hemocompatibility and negligible immunogenicity...
May 21, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29782545/rosmarinic-acid-is-a-novel-inhibitor-for-hepatitis-b-virus-replication-targeting-viral-epsilon-rna-polymerase-interaction
#20
Yuta Tsukamoto, Sotaro Ikeda, Koji Uwai, Riho Taguchi, Kazuaki Chayama, Takemasa Sakaguchi, Ryo Narita, Wan-Ling Yao, Fumihiko Takeuchi, Yukie Otakaki, Koichi Watashi, Takaji Wakita, Hiroki Kato, Takashi Fujita
Current therapeutics for hepatitis B virus (HBV) patients such as nucleoside analogs (NAs) are effective; however, new antiviral drugs against HBV are still desired. Since the interaction between the epsilon (ε) sequence of HBV pregenomic RNA and viral polymerase (Pol) is a key step in the HBV replication cycle, we aimed to identify small compounds for its inhibition, and established a pull-down assay system for the detection of ε-RNA-binding-Pol. Screening showed that 5 out of 3,965 compounds inhibited ε-Pol binding, and we identified rosmarinic acid, which exhibited specificity, as a potential antiviral agent...
2018: PloS One
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