keyword
MENU ▼
Read by QxMD icon Read
search

massed

keyword
https://www.readbyqxmd.com/read/28545269/-risk-factors-of-endometriosis-associated-ovarian-carcinoma-in-women-aged-45-years-and-older
#1
Z X He, S Wang, Z F Li, L Zhu, J H Leng, J H Lang
Obiective: To explore the risk factors of endometriosis-associated ovarian cancer (EAOC) in women with ovarian endometriosis aged 45 years and older in China. Methods: The medical records of total 1 038 women aged 45 years and older with a surgicopathological diagnosis of ovarian endometriosis treated at Peking Union Medical College Hospital from December 1994 to December 2014 were reviewed. Histology evaluation determined ovarian endometriosis with (n=30) or without (n=1 008) ovarian cancer. Results: (1) There were 30 (2...
May 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/28545259/identification-of-diacetonamine-from-soybean-curd-residue-as-a-sporulation-inducing-factor-toward-bacillus-spp
#2
Aki Ikeda, Dongyeop Kim, Yasuyuki Hashidoko
Under bioassay-guided investigation, a sporulation-inducing factor (SIF) toward Bacillus spp. was searched for in methanol (MeOH) extracts of soybean curd residues, and diacetonamine (1) was identified as the active compound. SIF was first isolated as a monoacetylated derivative (2, 4.1 mg from 655 g soybean curd residues), and its chemical structure was elucidated by field desorption mass spectrometry, electron ionization mass spectrometry, and nuclear magnetic resonance (NMR) analyses. After 48-h incubation, 40 µM diacetonamine hydrochloride (1b) exhibited sporulation-inducing activity with 35% sporulation frequency toward a Bacillus amyloliquefaciens wild-type strain (AHU 2170), whereas 40 µM diacetone acrylamide (3) showed 99% sporulation induction, which was much higher than that of 1b...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28545231/atmospheric-sampling-on-ascension-island-using-multirotor-uavs
#3
Colin Greatwood, Thomas S Richardson, Jim Freer, Rick M Thomas, A Rob MacKenzie, Rebecca Brownlow, David Lowry, Rebecca E Fisher, Euan G Nisbet
As part of an NERC-funded project investigating the southern methane anomaly, a team drawn from the Universities of Bristol, Birmingham and Royal Holloway flew small unmanned multirotors from Ascension Island for the purposes of atmospheric sampling. The objective of these flights was to collect air samples from below, within and above a persistent atmospheric feature, the Trade Wind Inversion, in order to characterise methane concentrations and their isotopic composition. These parameters allow the methane in the different air masses to be tied to different source locations, which can be further analysed using back trajectory atmospheric computer modelling...
May 23, 2017: Sensors
https://www.readbyqxmd.com/read/28545207/quality-and-reactivity-of-dissolved-organic-matter-in-a-mediterranean-river-across-hydrological-and-spatial-gradients
#4
Elisabet Ejarque, Anna Freixa, Eusebi Vazquez, Alba Guarch, Stefano Amalfitano, Stefano Fazi, Anna M Romaní, Andrea Butturini
Understanding DOM transport and reactivity in rivers is essential to having a complete picture of the global carbon cycle. In this study, we explore the effects of hydrological variability and downstream transport on dissolved organic matter (DOM) dynamics in a Mediterranean river. We sampled the main stem of the river Tordera from the source to the sea, over a range of fifteen hydrological conditions including extreme events (flood and drought). By exploring spatial and temporal gradients of DOM fluorescence properties, river hydrology was found to be a significant predictor of DOM spatial heterogeneity...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545166/childhood-predictors-of-cardiovascular-disease-in-adulthood-a-systematic-review-and-meta-analysis
#5
REVIEW
O Ajala, F Mold, C Boughton, D Cooke, M Whyte
Childhood obesity predicts the risk of adult adiposity, which is associated with the earlier onset of cardiovascular disease [adult atherosclerotic cardiovascular disease, ACVD: hypertension, increased carotid intima media thickness (CIMT) stroke, ischemic heart disease (IHD)] and dysglycaemia. Because it is not known whether childhood obesity contributes to these diseases, we conducted a systematic review of studies that examine the ability of measures of obesity in childhood to predict dysglycaemia and ACVD...
May 25, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28545164/loss-of-appendicular-muscle-mass-in-haemodialysis-patients-is-associated-with-increased-self-reported-depression-anxiety-and-lower-general-health-scores
#6
Helen Alston, Aine Burns, Andrew Davenport
AIMS: Depressive symptoms are commonly reported by haemodialysis (HD) patients. Previous reports have suggested an association between depression and nutritional status. To investigate this, we measured muscle mass in HD patients screened for depression. METHODS: The Beck Depression Inventory-II (BDI-II), Hospital Anxiety and Depression Scale (HADS) were used to screen for depression, and quality of life assessed by the short form 36 (SF36), and measured appendicular lean mass (ALM) post-dialysis with segmental bioimpedance...
May 25, 2017: Nephrology
https://www.readbyqxmd.com/read/28545163/coccygeal-body-revisited-an-immunohistochemical-study-using-donated-elderly-cadavers
#7
Zhe Wu Jin, Kwang Ho Cho, Hyung Suk Jang, Gen Murakami, Jose Francisco Rodríguez-Vázquez, Masahito Yamamoto, Shin-Ichi Abe
To describe the normal anatomy and histology of the adult coccygeal body (CB) and to discuss about the origin and function. Using immunohistochemistry, we examined 29 CBs found in 32 elderly donated cadavers without macroscopic pathology in the pelvis. The CB was usually located in or near the anococcygeal ligaments. It was almost always composed of multiple masses or nodules of round glomus cells (smooth muscle actin, or SMA++). However, the CB sometimes contained abundant dilated veins with scattered glomus cells...
May 25, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28545134/structures-of-the-inactive-and-active-states-of-rip2-kinase-inform-on-the-mechanism-of-activation
#8
Erika Pellegrini, Luca Signor, Saurabh Singh, Elisabetta Boeri Erba, Stephen Cusack
Innate immune receptors NOD1 and NOD2 are activated by bacterial peptidoglycans leading to recruitment of adaptor kinase RIP2, which, upon phosphorylation and ubiquitination, becomes a scaffold for downstream effectors. The kinase domain (RIP2K) is a pharmaceutical target for inflammatory diseases caused by aberrant NOD2-RIP2 signalling. Although structures of active RIP2K in complex with inhibitors have been reported, the mechanism of RIP2K activation remains to be elucidated. Here we analyse RIP2K activation by combining crystal structures of the active and inactive states with mass spectrometric characterization of their phosphorylation profiles...
2017: PloS One
https://www.readbyqxmd.com/read/28545103/combined-effects-of-cotyledon-excision-and-nursery-fertilization-on-root-growth-nutrient-status-and-outplanting-performance-of-quercus-variabilis-container-seedlings
#9
Wenhui Shi, Mark Bloomberg, Guolei Li, Shuchai Su, Liming Jia
Artificial excision of the distal part of acorns in order to promote germination is well researched in oak seedling cultivation studies. However, studies of combined effects of cotyledon excision and nursery fertilization on container seedlings are lacking, especially for seedling root growth and outplanting performance. This study aimed to explore the main effects of cotyledon excision on Quercus variabilis seedling emergence characteristics and demonstrated the combined effects of cotyledon excision and nursery fertilization on seedling quality to improve Quercus variabilis seedling outplanting performance...
2017: PloS One
https://www.readbyqxmd.com/read/28545081/perturbed-adipose-tissue-hydrogen-peroxide-metabolism-in-centrally-obese-men-association-with-insulin-resistance
#10
May G Akl, Eman Fawzy, Maha Deif, Ayman Farouk, Amany K Elshorbagy
OBJECTIVE: Although adipose tissue hydrogen peroxide (H2O2) and its metabolizing enzymes have been linked to obesity and insulin resistance in animal studies, this relation remains to be evaluated in humans. METHODS: Non-diabetic men (N = 43, median age, 49 (37, 54 y)) undergoing abdominal surgeries were studied. Participants were classified by body mass index (BMI) into normal-weight (N = 19), or overweight/obese (Ow/Ob; BMI ≥25; N = 24). Centrally obese men were identified by waist-height ratio ≥0...
2017: PloS One
https://www.readbyqxmd.com/read/28545069/behavioral-alterations-are-associated-with-vitamin-b12-deficiency-in-the-transcobalamin-receptor-cd320-ko-mouse
#11
Kaveri Arora, Jeffrey M Sequeira, Alejandro I Hernández, Juan M Alarcon, Edward V Quadros
Vitamin B12 (cobalamin) deficiency is prevalent worldwide and causes megaloblastic anemia and neurologic deficits. While the anemia can be treated, the neurologic deficits can become refractive to treatment as the disease progresses. Therefore, timely intervention is critical for a favorable outcome. Moreover, the metabolic basis for the neuro-pathologic changes and the role of cobalamin deficiency in the pathology still remains unexplained. Using a transcobalamin receptor / CD320 knockout mouse that lacks the receptor for cellular uptake of transcobalamin bound cobalamin, we aimed to determine whether cobalamin deficiency in the central nervous system produced functional neurologic deficits in the mouse that would parallel those observed in humans...
2017: PloS One
https://www.readbyqxmd.com/read/28544997/exposure-to-ultrafine-particles-in-different-transport-modes-in-the-city-of-rome
#12
Mario Grana, Nicola Toschi, Laura Vicentini, Antonio Pietroiusti, Andrea Magrini
There is evidence of adverse health impacts from human exposure to particulate air pollution, including increased rates of respiratory and cardiovascular illness, hospitalizations, and pre-mature mortality. Most recent hypotheses assign an important role to ultrafine particles (UFP) (<0.1 μm) and to associated transition metals (in particular Fe). In a large city like Rome, where many active people spend more than one hour per day in private or public transportation, it may be important to evaluate the level of exposure to harmful pollutants which occurs during urban travelling...
May 22, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28544980/what-we-authors-reviewers-and-editors-of-scientific-work-can-learn-from-the-analytical-history-of-biological-3-nitrotyrosine
#13
REVIEW
Dimitrios Tsikas
Tyrosine and tyrosine residues in proteins are attacked by the reactive oxygen and nitrogen species peroxynitrite (O=N-OO(-)) to generate 3-nitrotyrosine (3-NT) and 3-nitrotyrosine-proteins (3-NTProt), respectively. 3-NT and 3-NTProt are widely accepted as biomarkers of nitr(os)ative stress. Over the years many different analytical methods have been reported for 3-NT and 3-NTProt. Reported concentrations often differ by more than three orders of magnitude, indicative of serious analytical problems. Strategies to overcome pre-analytical and analytical shortcomings and pitfalls have been proposed...
May 13, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28544976/long-range-transport-of-xe-133-emissions-under-convective-and-non-convective-conditions
#14
J Kuśmierczyk-Michulec, M Krysta, M Kalinowski, E Hoffmann, J Baré
To investigate the transport of xenon emissions, the Provisional Technical Secretariat (PTS) operates an Atmospheric Transport Modelling (ATM) system based on the Lagrangian Particle Dispersion Model FLEXPART. The air mass trajectory ideally provides a "link" between a radionuclide release and a detection confirmed by radionuclide measurements. This paper investigates the long-range transport of Xe-133 emissions under convective and non-convective conditions, with special emphasis on evaluating the changes in the simulated activity concentration values due to the inclusion of the convective transport in the ATM simulations...
May 22, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28544937/recycling-metals-from-lithium-ion-battery-by-mechanical-separation-and-vacuum-metallurgy
#15
Jiefeng Xiao, Jia Li, Zhengming Xu
The large-batch application of lithium ion batteries leads to the mass production of spent batteries. So the enhancement of disposal ability of spent lithium ion batteries is becoming very urgent. This study proposes an integrated process to handle bulk spent lithium manganese (LiMn2O4) batteries to in situ recycle high value-added products without any additives. By mechanical separation, the mixed electrode materials mainly including binder, graphite and LiMn2O4 are firstly obtained from spent batteries. Then, the reaction characteristics for the oxygen-free roasting of mixed electrode materials are analyzed...
May 17, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28544921/in-situ-formed-copper-nanoparticles-templated-by-tdt-mediated-dna-for-enhanced-spr-sensor-based-dna-assay
#16
Pei-Xin Yuan, Sheng-Yuan Deng, Chen-Yu Zheng, Serge Cosnier, Dan Shan
For the efficient surface plasmon resonance (SPR)-based DNA assay researching, signal amplification tactics were absolutely necessary. In this work, a sensitive SPR-DNA sensor was developed by employing in situ synthesis of copper nanoparticles (CuNPs) templated by poly-T sequences DNA from terminal deoxynucleotidyl transferase (TdT)-mediated extension, and synergistically with nano-effect deposition as the mass relay. The objective of this strategy was manifold: firstly, tDNA hybridized with the optimal designed probes to active the TdT-mediated DNA extension onto the surface of SPR chip, resulted a long poly-T sequences ssDNA chain in dsDNA terminal onto surface of gold chip and characterized by SPR signal amplitudes...
May 18, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28544898/aerosol-and-snow-transfer-processes-an-investigation-on-the-behavior-of-water-soluble-organic-compounds-and-ionic-species
#17
Elena Barbaro, Roberta Zangrando, Sara Padoan, Ornela Karroca, Giuseppa Toscano, Warren R L Cairns, Carlo Barbante, Andrea Gambaro
The concentrations of water-soluble compounds (ions, carboxylic acids, amino acids, sugars, phenolic compounds) in aerosol and snow have been determined at the coastal Italian base "Mario Zucchelli" (Antarctica) during the 2014-2015 austral summer. The main aim of this research was to investigate the air-snow transfer processes of a number of classes of chemical compounds and investigate their potential as tracers for specific sources. The composition and particle size distribution of Antarctic aerosol was measured, and water-soluble compounds accounted for 66% of the PM10 total mass concentration...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28544897/size-resolved-aerosol-water-soluble-ions-during-the-summer-and-winter-seasons-in-beijing-formation-mechanisms-of-secondary-inorganic-aerosols
#18
Zirui Liu, Yuzhu Xie, Bo Hu, Tianxue Wen, Jinyuan Xin, Xingru Li, Yuesi Wang
Size-segregated water-soluble ionic species (WSIs) were measured using an Anderson cascade impactor from Jul. to Aug. 2008 and from Dec. 2009 to Feb. 2010 in urban Beijing. The results showed that fine particles (PM2.1, Dp < 2.1 μm) accounted for ∼49% (summer) and ∼34% (winter) of the total particulate mass, and WSIs accounted for 23-82% of the mass concentration of PM2.1. Secondary inorganic aerosols (SIAs, the sum of SO4(2-), NO3(-) and NH4(+)) accounted for more than 30% of the fine particles, which were greatly elevated during particle pollution events (PM events), thereby leading to an alteration of the size distributions of SO4(2-) and NO3(-) to nearly single fine-mode distributions peaking at 0...
May 17, 2017: Chemosphere
https://www.readbyqxmd.com/read/28544895/vibrational-spectroscopy-of-the-mass-selected-tetrahydrofurfuryl-alcohol-monomers-and-its-dimers-in-gas-phase-using-ir-depletion-and-vuv-single-photon-ionization
#19
Pengchao Wang, Yongjun Hu, Huaqi Zhan, Jiaxin Chen, Shan Jin, Wentao Song, Yujian Li
Tetrahydrofurfuryl alcohol (THFA, C5H10O2) is a close chemical analog of the sugar rings present in the phosphate-deoxyribose backbone structure of the nucleic acids. In present report, the infrared (IR) spectra of the size-selected THFA monomer and its dimer have been investigated in a pulsed supersonic jet using infrared-vacuum ultraviolet (VUV) ionization. Herein, the laser light at 118nm wavelength served as the source of "soft" ionization in a time-of-flight mass spectrometer. The IR features for the monomers located at 3622cm(-1) can be assigned to the intramolecular hydrogen bonding stretch vibrations mainly referring to A and C conformers...
May 1, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28544887/silver-nanoparticles-in-seawater-a-dynamic-mass-balance-at-part-per-trillion-silver-concentrations
#20
Claudio Toncelli, Kyriaki Mylona, Ioanna Kalantzi, Anastasia Tsiola, Paraskevi Pitta, Manolis Tsapakis, Spiros A Pergantis
This study investigates the dynamic processes affecting silver (Ag) nanoparticles that have been spiked into seawater at environmentally relevant concentrations (200 and 2000ngAgL(-1)). Seawater samples were taken at regular time intervals from multiple microcosm tanks and analysed rapidly, without any sample preparation, using a recently developed flow injection on-line dilution single particle inductively coupled plasma mass spectrometry method. Dissolution was found to be the predominant process of Ag nanoparticle transformation, with its rate being influenced by the type and thickness of the nanoparticle organic coating...
May 22, 2017: Science of the Total Environment
keyword
keyword
105738
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"