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https://www.readbyqxmd.com/read/28340309/analytical-techniques-in-lipidomics-state-of-the-art
#1
Kamil Jurowski, Kamila Kochan, Justyna Walczak, Małgorzata Barańska, Wojciech Piekoszewski, Bogusław Buszewski
Current studies related to lipid identification and determination, or lipidomics in biological samples, are one of the most important issues in modern bioanalytical chemistry. There are many articles dedicated to specific analytical strategies used in lipidomics in various kinds of biological samples. However, in such literature, there is lack of articles dedicated to a comprehensive review of the actual analytical methodologies used in lipidomics. The aim of this article is to characterize the lipidomics methods used in modern bioanalysis according to the methodological point of view: 1) chromatography/separation methods, 2) spectroscopic methods and 3) mass spectrometry and also hyphenated methods...
March 24, 2017: Critical Reviews in Analytical Chemistry
https://www.readbyqxmd.com/read/28339969/the-quality-of-eggs-organic-and-nutraceutical-vs-conventional-and-their-technological-properties
#2
Agnieszka Filipiak-Florkiewicz, Katarzyna Deren, Adam Florkiewicz, Kinga Topolska, Leslaw Juszczak, Ewa Cieslik
The aim of the study was to compare the quality of commercially available eggs: organic (attested organic farm) - OE, nutraceutical (enriched in n-3 fatty acids) - NE, vs. conventional (cage raising system) - CE and their technological (emulsifying) properties. Their basic chemical composition (i.e., moisture, protein, fat, ash) as well as mineral (Na, K, Ca, Mg, Zn, Fe, Mn, Cu) contents were assessed, and fatty acid profiles were determined. Next, the suitability of the eggs for mayonnaise production was assessed...
February 23, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339268/entropy-evolution-in-the-magnetic-phases-of-partially-frustrated-cepdal
#3
S Lucas, K Grube, C-L Huang, A Sakai, S Wunderlich, E L Green, J Wosnitza, V Fritsch, P Gegenwart, O Stockert, H V Löhneysen
In the heavy-fermion metal CePdAl, long-range antiferromagnetic order coexists with geometric frustration of one-third of the Ce moments. At low temperatures, the Kondo effect tends to screen the frustrated moments. We use magnetic fields B to suppress the Kondo screening and study the magnetic phase diagram and the evolution of the entropy with B employing thermodynamic probes. We estimate the frustration by introducing a definition of the frustration parameter based on the enhanced entropy, a fundamental feature of frustrated systems...
March 10, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28339187/accurate-mirna-analysis-in-crude-cell-lysate-by-capillary-electrophoresis-based-hybridization-assay-in-comparison-with-quantitative-reverse-transcription-polymerase-chain-reaction
#4
Liang Hu, Alexander S Stasheuski, David W Wegman, Nan Wu, Burton B Yang, Heyam Hayder, Chun Peng, Stanley K Liu, George M Yousef, Sergey N Krylov
Accurate quantitation of microRNA (miRNA) in tissue samples is required for validation and clinical use of miRNA-based disease biomarkers. Since sample processing, such as RNA extraction, introduces undesirable biases, it is advantageous to measure miRNA in a crude cell lysate. Here we report on accurate miRNA quantitation in crude cell lysate by a CE-based hybridization assay termed direct quantitative analysis of multiple miRNAs (DQAMmiR). Accuracy and precision of miRNA quantitation were determined for miRNA samples in a crude cell lysate, RNA extract from the lysate, and a pure buffer...
March 24, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28338218/evaluation-of-targeted-exome-sequencing-for-28-protein-based-blood-group-systems-including-the-homologous-gene-systems-for-blood-group-genotyping
#5
Elizna M Schoeman, Genghis H Lopez, Eunike C McGowan, Glenda M Millard, Helen O'Brien, Eileen V Roulis, Yew-Wah Liew, Jacqueline R Martin, Kelli A McGrath, Tanya Powley, Robert L Flower, Catherine A Hyland
BACKGROUND: Blood group single nucleotide polymorphism genotyping probes for a limited range of polymorphisms. This study investigated whether massively parallel sequencing (also known as next-generation sequencing), with a targeted exome strategy, provides an extended blood group genotype and the extent to which massively parallel sequencing correctly genotypes in homologous gene systems, such as RH and MNS. STUDY DESIGN AND METHODS: Donor samples (n = 28) that were extensively phenotyped and genotyped using single nucleotide polymorphism typing, were analyzed using the TruSight One Sequencing Panel and MiSeq platform...
March 24, 2017: Transfusion
https://www.readbyqxmd.com/read/28336853/enhanced-photocatalytic-performance-under-visible-and-near-infrared-irradiation-of-cu1-8se-cu%C3%A2-se%C3%A2-composite-via-a-phase-junction
#6
Li-Na Qiao, Huan-Chun Wang, Yang Shen, Yuan-Hua Lin, Ce-Wen Nan
A novel Cu1.8Se/Cu₃Se₂ composite photocatalyst was prepared by the simple precipitation method. This composite possesses a wide photoabsorption until the range of near-infrared light, and exhibits significantly enhanced photocatalytic activity for methyl orange degradation under visible and near-infrared light irradiation compared with bare Cu1.8Se and Cu₃Se₂. The mechanism of this outstanding photocatalytic behavior can be explained by the calculated energy band positions. The efficient charge separation via a phase junction of Cu1...
January 18, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28336270/the-natural-history-of-cystic-echinococcosis-in-untreated-and-albendazole-treated-patients
#7
N Solomon, M Kachani, E Zeyhle, C N L Macpherson
The World Health Organization (WHO) treatment protocols for cystic echinococcosis (CE) are based on the standardized ultrasound (US) classification. This study examined whether the classification reflected the natural history of CE in untreated and albendazole-treated patients. Data were collected during mass US screenings in CE endemic regions among transhumant populations, the Turkana and Berber peoples of Kenya and Morocco. Cysts were classified using the WHO classification. Patient records occurring prior to treatment, and after albendazole administration, were selected...
March 20, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28334810/bimodal-regulation-of-dishevelled-function-by-vangl2-during-morphogenesis
#8
Hwa-Seon Seo, Raymond Habas, Chenbei Chang, Jianbo Wang
Convergent extension (CE) is a fundamental morphogenetic mechanism that underlies numerous processes in vertebrate development, and its disruption can lead to human congenital disorders such as neural tube closure defects. The dynamic, oriented cell intercalation during CE is regulated by a group of core proteins identified originally in flies to coordinate epithelial planar cell polarity (PCP). The existing model explains how core PCP proteins, including Van Gogh (Vang) and Dishevelled (Dvl), segregate into distinct complexes on opposing cell cortex to coordinate polarity among static epithelial cells...
March 13, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28334659/nickel-selenide-reduced-graphene-oxide-nanocomposite-as-counter-electrode-for-high-efficient-dye-sensitized-solar-cells
#9
Jia Dong, Jihuai Wu, Jinbiao Jia, Leqing Fan, Jianming Lin
Nickel selenide/reduced graphene oxide (Ni0.85Se/rGO) nanosheet composite is synthesized by a facile hydrothermal process and used as counter electrode (CE) for dye-sensitized solar cells (DSSC). The Ni0.85Se/rGO film spin-coated on FTO show prominent electrocatalytic activity toward I3(-)/I(-). The electrocatalytic ability of Ni0.85Se/rGO film is verified by photocurrent-voltage curves, cyclic voltammetry, electrochemical impedance spectroscopy and Tafel polarization curves. On account of its decent electrical conductivity and superior electrocatalytic activity, the DSSC using optimal Ni0...
March 6, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28334634/e3-ubiquitin-ligase-cbl-b-prevents-tumor-metastasis-by-maintaining-the-epithelial-phenotype-in-multiple-drug-resistant-gastric-and-breast-cancer-cells
#10
Ling Xu, Ye Zhang, Xiujuan Qu, Xiaofang Che, Tianshu Guo, Ying Cai, Aodi Li, Danni Li, Ce Li, Ti Wen, Yibo Fan, Kezuo Hou, Yanju Ma, Xuejun Hu, Yunpeng Liu
Multiple drug resistance (MDR) and metastasis are two major factors that contribute to the failure of cancer treatment. However, the relationship between MDR and metastasis has not been characterized. Additionally, the role of the E3 ubiquitin ligase Cbl-b in metastasis of MDR gastric and breast cancer is not well known. In the present study, we found that MDR gastric and breast cancer cells possess a typical mesenchymal phenotype and enhanced cell migration capacity. Additionally, Cbl-b is poorly expressed in MDR gastric and breast cancer cells...
March 20, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28334489/ce-iv-gd-iii-mixed-oxides-as-hosts-for-er-iii-based-upconversion-phosphors
#11
Cecilia Sorbello, Petra Gross, Cristian A Strassert, Matías Jobbágy, Beatriz C Barja
A family of Er(III) and Er(III) -Yb(III) based nanophosphors, hosted in monophasic oxidic Ce(IV) -Gd(III) binary solid solutions, was prepared. The samples were formulated with a constant Er(III) content as the activator, with the eventual addition of Yb(III) as a sensitizer. The amorphous Ce0.94-x Gdx Er0.06 (OH)CO3 ⋅H2 O and Ce0.94-x Gdx Er0.05 Yb0.01 (OH)CO3 ⋅H2 O precursors were prepared by following the urea method to obtain monodispersed spheres of tunable size ranging from 30 to 450 nm. After being decomposed at 1273 K under an atmosphere of air, the precursors of 200 nm in diameter evolved into monophasic polycrystalline particles preserving the parent shape and size...
March 23, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28334446/molecular-glycopathology-by-capillary-electrophoresis-analysis-of-the-n-glycome-of-formalin-fixed-paraffin-embedded-mouse-tissue-samples
#12
Boglarka Donczo, Mate Szarka, Jozsef Tovari, Gyorgyi Ostoros, Eszter Csanky, Andras Guttman
Capillary electrophoresis with laser-induced fluorescence (CE-LIF) detection was used to analyze endoglycosidase released and fluorophore-labeled N-glycans from formalin-fixed paraffin-embedded (FFPE) mouse tissue samples of lung, brain, heart, spleen, liver, kidney and intestine. The FFPE samples were first deparaffinized followed by solubilization and glycoprotein retrieval. PNGase F mediated release of the N-linked oligosaccharides was followed by labeling with aminopyrene trisulfonate. After CE-LIF glycoprofiling of the FFPE mouse tissues, the N-glycan pool of the lung specimen was subject to further investigation by exoglycosidase array based carbohydrate sequencing...
March 23, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28333742/1-5-ce-test-hours-overactive-bladder-in-women
#13
Emily Contrada
No abstract text is available yet for this article.
April 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28333741/1-5-ce-test-hours-original-research-identifying-hospitalized-patients-at-risk-for-harm-a-comparison-of-nurse-perceptions-vs-electronic-risk-assessment-tool-scores
#14
https://www.readbyqxmd.com/read/28332377/hb-heathrow-%C3%AE-103-g5-phe%C3%A2-leu-a-first-report-in-an-asian-patient-with-erythrocytosis
#15
Sang Yong Shin, Hyun Young Kim, Hee Jin Kim, Hoon Gu Kim
Congenital erythrocytosis (CE) is a rare and heterogeneous disease. The high oxygen affinity hemoglobin (Hb) variants are the most common cause of CE. Herein, we report a Korean patient with isolated erythrocytosis. A 25-year-old man was referred to our hospital for evaluation of high Hb level (Hb 20.4 g/dL, hematocrit 58%, reticulocyte count 2.90%, white blood cell count 6.83×10⁹/L, and platelet count 195×10⁹/L). Bone marrow biopsy revealed normocellular marrow without myeloproliferative features. JAK2 (V617F, exon 12), CALR (exon 9), and MPL W515K/L mutations were not detected...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28332176/a-naphthoquinone-from-sinningia-canescens-inhibits-inflammation-and-fever-in-mice
#16
Luís A Lomba, Paulo H Vogt, Victor E P Souza, Mariane C G Leite-Avalca, Maria H Verdan, Maria Elida A Stefanello, Aleksander R Zampronio
We previously showed that plants from the genus Sinningia are a source of antiinflammatory and analgesic compounds with different mechanisms of action. The present study evaluated the antiinflammatory, antinociceptive, and antipyretic effects of a crude extract (CE) from Sinningia canescens, its fractions, and 6-methoxy-7-hydroxy-α-dunnione (MHD) in mice. These effects were evaluated using carrageenan (Cg)-induced paw edema, acetic acid- and formalin-induced nociception, mechanical hyperalgesia, lipopolysaccharide (LPS)-induced fever, and plasma cytokine levels...
March 22, 2017: Inflammation
https://www.readbyqxmd.com/read/28329247/coronary-endarterectomy-with-coronary-artery-bypass-graft-decreases-graft-patency-compared-with-isolated-coronary-artery-bypass-graft-a-meta-analysis
#17
Yangwu Song, Fei Xu, Junzhe Du, Jiqiang Zhang, Wei Feng
OBJECTIVES: This meta-analysis aims to assess the graft patency quantitatively and statistically. METHODS: Eleven observational studies were identified by systematic literature search, incorporating 3311 patients undergoing coronary endarterectomy (CE) + coronary artery bypass graft (CABG) and 3990 undergoing isolated CABG, which were analysed using random-effects modelling. Heterogeneity, quality of scoring and risk of bias were assessed and reangiographic outcomes were documented...
March 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28328068/separation-of-enilconazole-enantiomers-in-capillary-electrophoresis-with-cyclodextrin-type-chiral-selectors-and-investigation-of-structure-of-selector-selectand-complexes-by-using-nuclear-magnetic-resonance-spectroscopy
#18
Ann Gogolashvili, Elene Tatunashvili, Lali Chankvetadze, Tamas Sohajda, Julianna Szeman, Antonio Salgado, Bezhan Chankvetadze
In the present study the enantiomer migration order (EMO) of enilconazole in the presence of various cyclodextrins (CDs) was investigated by capillary electrophoresis (CE). Opposite EMO of enilconazole were observed when β-CD or the sulfated heptakis(2-O-methyl-3,6-di-O-sulfo)-β-CD (HMDS-β-CD) was used as the chiral selectors. Nuclear Magnetic Resonance (NMR) spectroscopy was used to study the mechanism of chiral recognition between enilconazole enantiomers and those two cyclodextrins. On the basis of rotating frame nuclear Overhauser (ROESY) experiments, the structure of an inclusion complex between enilconazole and β-CD was derived, in which (+)-enilconazole seemed to form a tighter complex than the (-)-enantiomer...
March 22, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28327723/luminescence-and-white-light-emitting-luminescent-sensor-of-tetrafluoroterephthalate-lanthanide-metal-organic-frameworks
#19
Yongqiang Han, Pengfei Yan, Jingwen Sun, Guanghui An, Xu Yao, Yuxin Li, Guangming Li
Two types of sixteen complexes 1-16, namely, {[Ln(TFBDC)1.5(H2O)]·2H2O}n [Ln = Pr (1) and Nd (2)] and {[Ln(TFBDC)1.5(H2O)2]·H2O}n [Ln = Ce (3), Pr (4), Nd (5), Sm (6), Eu (7), Gd (8), Tb (9), Dy (10), Ho (11), Er (12), Yb (13) and Lu (14)], {[Dy0.281Eu0.719(TFBDC)1.5(H2O)2]·H2O}n (15) and {[Gd0.871Eu0.103Tb0.026(TFBDC)1.5(H2O)2]·H2O}n (16), were isolated by the reaction of LnCl3·6H2O with 2,3,5,6-tetrafluoroterephthalic acid (H2TFBDC). X-ray crystallographic analysis revealed that 1 and 2 exhibit 3D network structures and complexes 3-14 feature 2D network structures formed via three different coordination modes of the ligand...
March 22, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28327464/monte-carlo-simulations-of-time-of-flight-pet-with-double-ended-readout-calibration-coincidence-resolving-times-and-statistical-lower-bounds
#20
Stephen E Derenzo
This paper demonstrates through Monte Carlo simulations that a practical positron emission tomograph with (1) deep scintillators for efficient detection, (2) double-ended readout for depth-of-interaction information, (3) fixed-level analog triggering, and (4) accurate calibration and timing data corrections can achieve a coincidence resolving time (CRT) that is not far above the statistical lower bound. One Monte Carlo algorithm simulates a calibration procedure that uses data from a positron point source. Annihilation events with an interaction near the entrance surface of one scintillator are selected, and data from the two photodetectors on the other scintillator provide depth-dependent timing corrections...
March 22, 2017: Physics in Medicine and Biology
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