keyword
MENU ▼
Read by QxMD icon Read
search

a fib

keyword
https://www.readbyqxmd.com/read/28721455/volume-electron-microscopy-of-the-distribution-of-synapses-in-the-neuropil-of-the-juvenile-rat-somatosensory-cortex
#1
A Santuy, J R Rodriguez, J DeFelipe, A Merchan-Perez
Knowing the proportions of asymmetric (excitatory) and symmetric (inhibitory) synapses in the neuropil is critical for understanding the design of cortical circuits. We used focused ion beam milling and scanning electron microscopy (FIB/SEM) to obtain stacks of serial sections from the six layers of the juvenile rat (postnatal day 14) somatosensory cortex (hindlimb representation). We segmented in three-dimensions 6184 synaptic junctions and determined whether they were established on dendritic spines or dendritic shafts...
July 18, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28710435/evaluation-of-elift-for-non-invasive-assessment-of-liver-fibrosis-and-cirrhosis-in-patients-with-chronic-hepatitis-b-virus-infection
#2
Qiang Li, Chuan Lu, Weixia Li, Yuxian Huang, Liang Chen
Recently, the easy Liver Fibrosis Test (eLIFT), a sum of points attributed to age, gender, gamma-glutamyl transpeptidase, aspartate transaminase, platelets, and prothrombin time, was developed for diagnosing advanced fibrosis and cirrhosis in chronic liver disease. We aimed to evaluate the performance of eLIFT to predict liver fibrosis and cirrhosis in patients with chronic hepatitis B (CHB). Histologic and laboratory data of 747 CHB patients were analyzed. The performance of eLIFT for diagnosing liver fibrosis and cirrhosis was compared with that of aspartate transaminase to platelet ratio index (APRI) and fibrosis index based on the 4 factors (FIB-4)...
July 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28708426/phenotypic-characteristics-and-genetic-diversity-of-salmonella-enterica-serotype-derby-isolated-from-human-patients-and-foods-of-animal-origin
#3
Chenggang Xu, Xingxing Ren, Zhou Feng, Ying Fu, Yanfen Hong, Zujie Shen, Lina Zhang, Ming Liao, Xuebin Xu, Jianmin Zhang
Salmonella enterica serotype Derby is among the three most common serotypes of nontyphoidal Salmonella isolated from patients with diarrhea in China. In this study, 133 Salmonella Derby isolates from human patients (n = 74) and foods of animal origin (n = 59) in Shanghai, China, between September 2013 and December 2014, were selected to study its phenotypic characteristics and genetic diversity. The isolates were subjected to antimicrobial susceptibility testing, plasmid replicon typing, virulence profile determination, and molecular subtyping by pulsed-field gel electrophoresis (PFGE)...
July 14, 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28696351/nanoporous-structure-formation-in-gasb-insb-and-ge-by-ion-beam-irradiation-under-controlled-point-defect-creation-conditions
#4
Yusuke Yanagida, Tomoya Oishi, Takashi Miyaji, Chiaki Watanabe, Noriko Nitta
Ion beam irradiation-induced nanoporous structure formation was investigated on GaSb, InSb, and Ge surfaces via controlled point defect creation using a focused ion beam (FIB). ‎This paper compares the nanoporous structure formation under the same extent of point defect creation while changing the accelerating voltage and ion dose. Although the same number of point defects were created in each case, different structures were formed on the different surfaces. The depth direction density of the point defects was an important factor in this trend...
July 11, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28693326/multiscale-morphology-of-nanoporous-copper-made-from-intermetallic-phases
#5
Tobias Egle, Cédric Barroo, Nare Janvelyan, Andreas C Baumgaertel, Austin J Akey, Monika M Biener, Cynthia M Friend, David C Bell, Juergen Biener
Many application-relevant properties of nanoporous metals critically depend on their multiscale architecture. For example, the intrinsically high step-edge density of curved surfaces at the nanoscale provides highly reactive sites for catalysis, whereas the macroscale pore and grain morphology determines the macroscopic properties, such as mass transport, electrical conductivity, or mechanical properties. In this work, we systematically study the effects of alloy composition and dealloying conditions on the multiscale morphology of nanoporous copper (np-Cu) made from various commercial Zn-Cu precursor alloys...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28692443/a-single-test-combining-blood-markers-and-elastography-is-more-accurate-than-other-fibrosis-tests-in-the-main-causes-of-chronic-liver-diseases
#6
Alexandra Ducancelle, Vincent Leroy, Julien Vergniol, Nathalie Sturm, Brigitte Le Bail, Jean Pierre Zarski, Eric Nguyen Khac, Dominique Salmon, Victor de Ledinghen, Paul Calès
BACKGROUND AND GOAL: International guidelines suggest combining a blood test and liver stiffness measurement (LSM) to stage liver fibrosis in chronic hepatitis C (CHC) and non-alcoholic fatty liver disease (NAFLD). Therefore, we compared the accuracies of these tests between the main etiologies of chronic liver diseases. STUDY: Overall, 1968 patients were included in 5 etiologies: CHC: 698, chronic hepatitis B: 152, human immunodeficiency virus/CHC: 628, NAFLD: 225, and alcoholic liver disease (ALD): 265...
August 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28692287/quantifying-the-structure-and-composition-of-flocculated-suspended-particulate-matter-using-focused-ion-beam-nanotomography
#7
Jonathan A T Wheatland, Andrew J Bushby, Kate L Spencer
Suspended particulate matter (SPM) is present in the natural aquatic environment as loosely bound aggregates or 'flocs' and is responsible for the transport and fate of sediment, carbon, nutrients, pollutants, pathogens and manufactured nanoparticles from catchment to coast. Accurate prediction of SPM hydrodynamics requires the quantification of 3D floc properties (size, shape, density and porosity) that span several spatial scales. Yet, current techniques (video camera systems, optical microscopy and transmission electron microscopy, TEM) can only provide 2D simplifications of size and shape with a spatial resolution gap between the 'gross' (>100s µm) and nano-scale (<1 µm)...
July 10, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28691926/low-temperature-solid-state-wetting-and-formation-of-nanowelds-in-silver-nanowires
#8
Vuk V Radmilovic, Manuela Göbelt, Colin Ophus, Silke H Christiansen, Erdmann Spiecker, Velimir R Radmilovic
This article focuses on the microscopic mechanism of thermally induced nanoweld formation between silver nanowires (AgNWs) which is a key process for improving electrical conductivity in NW networks employed for transparent electrodes. Focused ion beam (FIB) sectioning and transmission electron microscopy (TEM) were applied in order to elucidate the atomic structure of welded NW including measurement of the wetting contact angle and characterization of defect structure with atomic accuracy, which provides fundamental information on the welding mechanism...
July 10, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28688902/serum-s100-calcium-binding-protein-a4-improves-the-diagnostic-accuracy-of-transient-elastography-for-assessing-liver-fibrosis-in-hepatitis-b
#9
Li-Bo Yan, Qing-Bo Zhang, Xia Zhu, Min He, Hong Tang
AIM: The diagnostic performance of Fibroscan might be improved when combined with other serum fibrosis related markers. Previous study has demonstrated that S100A4 expression is associated with liver fibrosis in humans with hepatitis. This study aimed to clarify diagnostic accuracy of serum S100A4 levels for significant liver fibrosis in patients with chronic hepatitis B (CHB), and develop a combined algorithm of liver stiffness measurement (LSM) and S100A4 to predict significant liver fibrosis in CHB...
July 5, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28685907/the-gamma-glutamyl-transpeptidase-to-albumin-ratio-predicts-significant-fibrosis-and-cirrhosis-in-chronic-hepatitis-b-patients
#10
Qiang Li, Chuan Lu, Weixia Li, Yuxian Huang, Liang Chen
Simple, inexpensive, and clinically available non-invasive liver fibrosis tests are highly needed. We aimed to develop a novel non-invasive index for predicting significant fibrosis and cirrhosis in chronic hepatitis B (CHB) patients METHODS: Using liver histology as gold standard, we developed a novel index to predict significant fibrosis and cirrhosis in CHB patients, and then compared the diagnostic accuracy of the novel index, aspartate transaminase-to-platelet ratio index (APRI), and fibrosis index based on four factors (FIB-4) in a training set (606 patients) and a validation set (216 patients) from the same patient catchment area RESULTS: Of 606 CHB patients in the training set, 33...
July 7, 2017: Journal of Viral Hepatitis
https://www.readbyqxmd.com/read/28682889/femoral-nerve-block-versus-fascia-iliaca-block-for-pain-control-in-total-knee-and-hip-arthroplasty-a-meta-analysis-from-randomized-controlled-trials
#11
REVIEW
Xin Wang, Yuan Sun, Li Wang, Xuelian Hao
BACKGROUND: This meta-analysis aimed to perform a meta-analysis to compare the efficiency and safety between femoral nerve block (FNB) and fascia iliaca block (FIB) for postoperative pain control in patients undergoing total knee and hip arthroplasties. METHODS: A systematic search was performed in Medline (1966-2017.05), PubMed (1966-2017.05), Embase (1980-2017.05), ScienceDirect (1985-2017.05) and the Cochrane Library. Inclusion criteria (1) Participants: Only published articles enrolling adult participants that with a diagnosis of end-stage of osteoarthritis and prepared for unilateral TKA or THA; (2) Interventions: The intervention group received FIB for postoperative pain management; (3) Comparisons: The control group was received FNB for postoperative pain control; (4) Outcomes: Visual analogue scale (VAS) scores in different periods, opioids consumption, length of stay and postoperative complications; (5) Study design: clinical randomized control trials (RCTs) were regarded as eligible in our study...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28682058/revealing-the-cell-material-interface-with-nanometer-resolution-by-focused-ion-beam-scanning-electron-microscopy
#12
Francesca Santoro, Wenting Zhao, Lydia-Marie Joubert, Liting Duan, Jan Schnitker, Yoeri van de Burgt, Hsin-Ya Lou, Bofei Liu, Alberto Salleo, Lifeng Cui, Yi Cui, Bianxiao Cui
The interface between cells and non-biological surfaces regulates cell attachment, chronic tissue responses, and ultimately the success of medical implants or biosensors. Clinical and laboratory studies show that topological features of the surface profoundly influences cellular responses, e.g. titanium surfaces with nano- and microtopographical structures enhance osteoblast attachment and host-implant integration as compare to smooth surface. To understand how cells and tissues respond to different topological features, it is of critical importance to directly visualize the cell-materials interface at the relevant nanometer length scale...
July 6, 2017: ACS Nano
https://www.readbyqxmd.com/read/28675756/fabrication-of-a-single-ga-doped-zns-nanowire-as-high-gain-photosensors-by-focused-ion-beam-deposition
#13
Shih-Hsiang Yen, Yu-Chen Hung, Yawen Su, Ping-Hung Yeh, Chiu-Yen Wang
ZnS nanowires were synthesized via vapor-liquid-solid (VLS) mechanism then fabricated into a single-nanowire field-effect transistor through the focused ion beam (FIB) deposition. The field effect electrical properties of FIB-fabricated ZnS nanowire device, such as conductivity, mobility and hole concentration were 9.13 Ω<sup>-1</sup>cm<sup>-1</sup>, 13.14 cm<sup>2</sup>V<sup>-1</sup>s<sup>-1</sup>and 4.27×10<sup>18</sup> cm<sup>-3</sup>, respectively...
July 4, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28672011/prognostic-role-of-noninvasive-liver-reserve-markers-in-patients-with-hepatocellular-carcinoma-undergoing-transarterial-chemoembolization
#14
Shu-Yein Ho, Po-Hong Liu, Chia-Yang Hsu, Cheng-Yuan Hsia, Yun-Hsuan Lee, Rheun-Chuan Lee, Yi-Hsiang Huang, Fa-Yauh Lee, Ming-Chih Hou, Ya-Ju Tsai, Teh-Ia Huo
BACKGROUND: Various noninvasive liver reserve markers were proposed to indicate the severity of liver damage. However, the role and feasibility of these markers to predict the prognosis of patients with hepatocellular carcinoma (HCC) are unknown. We aimed to identify the prognostic role of the 8 currently used hepatic reserve markers in patients with HCC undergoing transarterial chemoembolization (TACE). METHODS: Between 2002 and 2013, a total of 881 patients with HCC undergoing TACE were prospectively identified and retrospectively analyzed...
2017: PloS One
https://www.readbyqxmd.com/read/28669222/comparison-of-serological-assessments-in-the-diagnosis-of-liver-fibrosis-in-bile-duct-ligation-mice
#15
Chengxia Xie, Bo Ma, Ning Wang, Lin Wan
Liver fibrosis assessment is essential to make a prognosis and to determine the appropriate anti-fibrosis treatment. Non-invasive serum markers are widely studied in patients to assess liver fibrosis due to the limitations of liver biopsy. When using animal models to study the mechanism and intervention of hepatic fibrosis, serum markers might be useful for the continuous assessment of liver fibrosis in individual animals, which could avoid the influence of biological differences between individuals. However, it is unclear whether serum markers can assess hepatic fibrosis in the animal model...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28667312/fabrication-of-fresnel-plates-on-optical-fibres-by-fib-milling-for-optical-trapping-manipulation-and-detection-of-single-cells
#16
Rita S Rodrigues Ribeiro, Pabitra Dahal, Ariel Guerreiro, Pedro A S Jorge, Jaime Viegas
The development of economical optical devices with a reduced footprint foreseeing manipulation, sorting and detection of single cells and other micro particles have been encouraged by cellular biology requirements. Nonetheless, researchers are still ambitious for advances in this field. This paper presents Fresnel zone and phase plates fabricated on mode expanded optical fibres for optical trapping. The diffractive structures were fabricated using focused ion beam milling. The zone plates presented in this work have focal distance of ~5 µm, while the focal distance of the phase plates is ~10 µm...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28665771/increased-antimicrobial-resistance-in-a-novel-cmy-54-ampc-type-enzyme-with-a-gluleu-217-218-insertion-in-the-%C3%AE-loop
#17
Francisco José Pérez-Llarena, Juan Carlos Vázquez-Ucha, Frédéric Kerff, Laura Zamorano, Elisenda Miró, María Póvoa Cabral, Ana Fleites, Marta Lantero, Luis Martínez-Martínez, Antonio Oliver, Moreno Galleni, Ferrán Navarro, Alejandro Beceiro, Germán Bou
During a Spanish surveillance study, a natural variant of a CMY-type β-lactamase related to CMY-2 with a GluLeu(217-218) insertion in the Ω-loop (designated CMY-54) was found to increase the minimum inhibitory concentractions to β-lactams in a clinical strain of Escherichia coli. The aim of this study was to characterize CMY-54 by genetic, microbiological, and biochemical analysis. The blaCMY-54 gene is encoded by a plasmid of around 100 kb that hybridizes with K and FIB probes. The genetic context of blaCMY-54 and blaCMY-2 genes was found to be very similar...
June 30, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28659892/a-complex-endomembrane-system-in-the-archaeon-ignicoccus-hospitalis-tapped-by-nanoarchaeum-equitans
#18
Thomas Heimerl, Jennifer Flechsler, Carolin Pickl, Veronika Heinz, Benjamin Salecker, Josef Zweck, Gerhard Wanner, Stefan Geimer, Rachel Y Samson, Stephen D Bell, Harald Huber, Reinhard Wirth, Louie Wurch, Mircea Podar, Reinhard Rachel
Based on serial sectioning, focused ion beam scanning electron microscopy (FIB/SEM), and electron tomography, we depict in detail the highly unusual anatomy of the marine hyperthermophilic crenarchaeon, Ignicoccus hospitalis. Our data support a complex and dynamic endomembrane system consisting of cytoplasmic protrusions, and with secretory function. Moreover, we reveal that the cytoplasm of the putative archaeal ectoparasite Nanoarchaeum equitans can get in direct contact with this endomembrane system, complementing and explaining recent proteomic, transcriptomic and metabolomic data on this inter-archaeal relationship...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28658094/multimorbidity-and-polypharmacy-in-diabetic-patients-with-nafld-implications-for-disease-severity-and-management
#19
Preya Janubhai Patel, Kelly Lee Hayward, Rathiga Rudra, Leigh Ula Horsfall, Fabrina Hossain, Suzanne Williams, Tracey Johnson, Nigel Neil Brown, Nivene Saad, Andrew Donald Clouston, Katherine Anne Stuart, Patricia Casarolli Valery, Katharine Margaret Irvine, Anthony William Russell, Elizabeth Ellen Powell
An observational study describing the number and type of chronic conditions and medications taken by diabetic patients with NAFLD and identifying characteristics that may impact liver disease severity or clinical management.Adults with type 2 diabetes have a high prevalence of nonalcoholic fatty liver disease (NAFLD) and increased risk of developing advanced liver disease. Appropriate management should consider the characteristics of the diabetic NAFLD population, as comorbid conditions and medications may increase the complexity of treatment strategies...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28650402/hiv-hbv-co-infection-is-a-significant-risk-factor-for-liver-fibrosis-in-tanzanian-hiv-infected-adults
#20
Claudia Hawkins, Beatrice Christian, Emanuel Fabian, Irene Macha, Cecilia Gawile, Shida Mpangala, Nzovu Ulenga, Chloe L Thio, Lauren Rose Ammerman, Ferdinand Mugusi, Wafaie Fawzi, Richard Green, Robert Murphy
BACKGROUND: In sub-Saharan Africa, the burden of liver disease associated with chronic hepatitis B (HBV) and HIV is unknown. We characterized liver disease using aspartate aminotransferase-to-platelet ratio index (APRI) and FIB-4 in patients with HIV, HBV, and HIV/HBV co-infection in Tanzania. METHODS: Using a cross sectional design, we compared the prevalence of liver fibrosis in treatment-naive HIV mono-infected, HBV mono-infected, and HIV/HBV co-infected adults enrolled at Management and Development for Health (MDH)-supported HIV treatment clinics in Dar es Salaam, Tanzania...
June 22, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
keyword
keyword
39334
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"