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https://www.readbyqxmd.com/read/29149784/anti-inflammatory-property-of-%C3%AE-d-mannuronic-acid-m2000-on-expression-and-activity-of-matrix-metalloproteinase-2-and-9-through-cd147-molecule-in-phorbol-myristate-acetate-differentiated-thp-1-cells
#1
Mohadese M Farahani, Elahe Motevaseli, Faezeh Maghsood, Maryam Heidari-Kharaji, Abbas Mirshafiey
The aim of this study was to evaluate the effects of M2000, a novel non-steroidal anti-inflammatory drug (NSAID) with immunosuppressive property and without gastro-nephrotoxicitic effects on matrix metalloproteinases (MMP)-2 and (MMP)-9 in phorbol myristate acetate (PMA)-differentiated THP-1 cells. Gene expression and activity of MMP-2 and MMP-9 are inhibited respectively by the tissue inhibitor of matrix metalloproteinase (TIMP)-2 and (TIMP)-1 and are induced by extracellular matrix metalloproteinase inducer (CD147/EMMPRIN)...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29149778/the-changes-of-th17-treg-and-related-cytokines-il-17-il-23-il-10-and-tgf-%C3%AE-in-respiratory-syncytial-virus-bronchiolitis-rat-model
#2
Meng Gao, Liang-Xiao Liu, Fu-Ling Wu, Xuejing Zhang, Ying-Ying Li, Tao Shi, De-Zhi Li, Ting-Ting Han
Respiratory syncytial virus (RSV) is the leading cause of bronchiolitis and hospitalization that lead to high morbidity and mortality among young infants. T helper 17 (Th17) cells and regulatory T cells (Tregs) play essential roles in the pathogenesis of autoimmune, cancer, and inflammatory diseases. However, whether changes in T-cell subsets are related to the systemic immune responses in RSV-caused bronchiolitis merit further investigation. Three-week-old Sprague Dawley (SD) rats were randomly divided into the normal control (NC) and RSV bronchiolitis (RSV-B) groups...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29149703/quercetin-attenuates-collagen-induced-arthritis-by-restoration-of-th17-treg-balance-and-activation-of-heme-oxygenase-1-mediated-anti-inflammatory-effect
#3
Yan Yang, Xu Zhang, Min Xu, Xin Wu, Feipeng Zhao, Chengzhi Zhao
Quercetin (QU) has been shown obvious anti-arthritic property in pre-clinical studies or clinical studies. Howbeit, the underlying mechanism of it is still not revealed distinctly and should be gotten further insight into. QU at a dosage of 150 mg/kg was administered orally in collagen-induced arthritis rats and then the clinical symptoms were monitored. The protein levels of Th17/Treg-related cytokines were determined by ELISA, and the mRNA levels of cytokines and transcription factors associated with the Th17 and Treg phenotypes were evaluated by real-time PCR, the proportions of Th17 and Treg cells were assessed by flow cytometry...
November 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29149690/a-modified-montpellier-protocol-for-intubating-intensive-care-unit-patients-is-associated-with-an-increase-in-first-pass-intubation-success-and-fewer-complications
#4
Keith A Corl, Christopher Dado, Ankita Agarwal, Nader Azab, Tim Amass, Sarah J Marks, Mitchell M Levy, Roland C Merchant, Jason Aliotta
BACKGROUND: The Montpellier protocol for intubating patients in the intensive care unit (ICU) is associated with a decrease in intubation-related complications. We sought to determine if implementation of a simplified version of the Montpellier protocol that removed selected components and allowed for a variety of pre-oxygenation modalities increased first-pass intubation success and reduced intubation-related complications. METHODS: A prospective pre/post-comparison of a modified Montpellier protocol in two medical and one medical/surgical/cardiac ICU within a hospital system...
November 10, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/29149347/signal-recognition-particle-binds-to-translating-ribosomes-before-emergence-of-a-signal-anchor-sequence
#5
Evan Mercier, Wolf Holtkamp, Marina V Rodnina, Wolfgang Wintermeyer
The bacterial signal recognition particle (SRP) is part of the machinery that targets ribosomes synthesizing membrane proteins to membrane-embedded translocons co-translationally. Recognition of nascent membrane proteins occurs by virtue of a hydrophobic signal-anchor sequence (SAS) contained in the nascent chain, usually at the N terminus. Here we use fluorescence-based stopped-flow to monitor SRP-ribosome interactions with actively translating ribosomes while an SRP substrate is synthesized and emerges from the peptide exit tunnel...
November 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29149202/intraspecific-evolutionary-relationships-among-peregrine-falcons-in-western-north-american-high-latitudes
#6
Sandra L Talbot, George K Sage, Sarah A Sonsthagen, Meg C Gravley, Ted Swem, Jeffrey C Williams, Jonathan L Longmire, Skip Ambrose, Melanie J Flamme, Stephen B Lewis, Laura Phillips, Clifford Anderson, Clayton M White
Subspecies relationships within the peregrine falcon (Falco peregrinus) have been long debated because of the polytypic nature of melanin-based plumage characteristics used in subspecies designations and potential differentiation of local subpopulations due to philopatry. In North America, understanding the evolutionary relationships among subspecies may have been further complicated by the introduction of captive bred peregrines originating from non-native stock, as part of recovery efforts associated with mid 20th century population declines resulting from organochloride pollution...
2017: PloS One
https://www.readbyqxmd.com/read/29149201/the-influence-of-filtering-and-downsampling-on-the-estimation-of-transfer-entropy
#7
Immo Weber, Esther Florin, Michael von Papen, Lars Timmermann
Transfer entropy (TE) provides a generalized and model-free framework to study Wiener-Granger causality between brain regions. Because of its nonparametric character, TE can infer directed information flow also from nonlinear systems. Despite its increasing number of applications in neuroscience, not much is known regarding the influence of common electrophysiological preprocessing on its estimation. We test the influence of filtering and downsampling on a recently proposed nearest neighborhood based TE estimator...
2017: PloS One
https://www.readbyqxmd.com/read/29148988/humidified-high-flow-nasal-cannula-oxygen-more-than-just-supplemental-oxygen
#8
Neil R MacIntyre
No abstract text is available yet for this article.
December 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/29148722/acoustic-wave-driven-functionalized-particles-for-aptamer-based-target-biomolecule-separation
#9
Raheel Ahmad, Ghulam Destgeer, Muhammad Afzal, Jinsoo Park, Husnain Ahmed, Jin Ho Jung, Kwangseok Park, Tae-Sung Yoon, Hyung Jin Sung
We developed a hybrid microfluidic device that utilized acoustic waves to drive functionalized microparticles inside a continuous flow microchannel and to separate particle-conjugated target proteins from a complex fluid. The acoustofluidic device comprised of an interdigitated transducer (IDT) that produced high-frequency surface acoustic waves (SAW) in a polydimethylsiloxane (PDMS) microfluidic channel. The SAW interacted with the sample fluid flow inside the microchannel and deflected particles from their original streamlines to achieve separation...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148720/a-dual-signal-readout-nanosphere-for-rapid-point-of-care-detection-of-ebola-virus-glycoprotein
#10
Jiao Hu, Yong-Zhong Jiang, Ling-Ling Wu, Zhen Wu, Yuhai Bi, Gary Wong, Xiang-Guo Qiu, Jian-Jun Chen, Dai-Wen Pang, Zhi-Ling Zhang
Rapid detection of highly contagious pathogens is the key to increasing the probability of survival and reducing infection rates. We developed a sensitive and quantitative lateral flow assay for detection of EBOV glycoprotein with a novel multifunctional nanosphere (RNs@Au) as a reporter. Each RNs@Au contains hundreds of quantum dots and dozens of Au nanoparticles and can achieve enhanced dual-signal readout (fluorescence signal for quantitative detection and colorimetric signal for visual detection). Antibody (Ab) and streptavidin (SA) were simultaneously modified onto the RNs@Au to label the target as well as to act as the signal enhancer...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148707/versatile-supermolecular-inclusion-complex-based-on-host-guest-interaction-for-targeted-gene-delivery
#11
Yunxia Sun, Jingyi Zhu, Wen-Xiu Qiu, Qi Lei, Si Chen, Xian-Zheng Zhang
A facile and targeted gene delivery system was prepared by conjugating β-cyclodextrin modified polyethylenimine (PEI-CD) and adamantyl peptide (AdGRGDS) based on host-guest interaction. With the rational design between PEI-CD and AdGRGDS, PEI-CD/AdGRGDS gene delivery system showed excellent DNA binding capability, and exhibited good ability to compact DNA into uniform spherical nanoparticles. In vitro luciferase assay showed that gene expression transfected by PEI-CD/AdGRGDS was stronger than that by PEI-CD in HeLa cells, whereas, gene expression transfected by PEI-CD/AdGRGDS and PEI-CD was similar to each other in COS7 cells...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148700/selective-ph-responsive-core-sheath-nanofiber-membranes-for-chem-bio-med-applications-targeted-delivery-of-functional-molecules
#12
Daewoo Han, Andrew J Steckl
Core-sheath fibers using different Eudragit materials were successfully produced and their controlled multi-pH responses have been demonstrated. Coaxial fibers made of Eudragit L 100 (EL100) core and Eudragit S 100 (ES100) sheath provide protection and/or controlled release of core material at pH 6 by adjusting the sheath thickness (controlled by the flow rate of source polymer solution). Thickest sheath (~ 250 nm) provides the least core release ~ 1.25 %/hr, while the thinnest sheath (~ 140 nm) provides much quicker release ~ 16...
November 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29148595/determination-of-cefoperazone-and-sulbactam-in-serum-by-hplc-ms-ms-an-adapted-method-for-therapeutic-drug-monitoring-in-children
#13
Xiu-Jun Wu, Xin Huang, Hai-Yan Shi, Xing-Kai Chen, Qian Dong, Guo-Xiang Hao, Yan Li, Yi Zheng, Wei Zhao
A rapid, accurate and specific high-performance liquid chromatographic -tandem mass spectrometry method has been validated for the simultaneous determination of cefoperazone and sulbactam in a small volume sample for children. A Shim-pack XR-ODS C18 column with gradient elution of water (0.1% formic acid) and acetonitrile (0.1% formic acid) solution was used for separation at a flow rate of 0.3 mL/min. The calibration curves of two analytes in serum showed excellent linearity over the concentration ranges of 0...
November 17, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29148433/a-flow-bioreactor-system-compatible-with-real-time-two-photon-fluorescence-lifetime-imaging-microscopy
#14
Nian Shen, Julia A Riedl, Daniel A Carvajal-Berrio, Zackary Davis, Michael G Monaghan, Shannon Lee Layland, Svenja Hinderer, Katja Schenke-Layland
Bioreactors are essential cell and tissue culture tools that allow the introduction of biophysical signals into in vitro cultures. One major limitation is the need to interrupt experiments and sacrifice samples at certain time points for analyses. To address this issue, we designed a bioreactor that combines high-resolution contact-free imaging and continuous flow in a closed system that is compatible with various types of microscopes. The high-throughput fluid flow bioreactor was combined with two-photon fluorescence lifetime imaging microscopy (2P-FLIM) and validated...
November 17, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29148254/connecting-color-with-assembly-in-the-fluorescent-b-phycoerythrin-protein-complex
#15
Aneika C Leney, Aline Tschanz, Albert J R Heck
Phycoerythrin is the major light-harvesting pigment protein in red algae and is nowadays widely used as a fluorescent probe in biotechnological applications such as flow cytometry and immunofluorescence microscopy. In addition, it has had substantial economic impact due to its potential as a natural food colorant. However, knowledge on the precise molecular composition of phycoerythrin is limited. Here, we use a combination of high resolution native mass spectrometry (MS) and fluorescence spectroscopy to characterize the assembly properties of the B-phycoerythrin protein complex from Porphyridium cruentum...
November 17, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29148240/what-can-intracoronary-pressure-measurements-tell-us-about-cfr-now-comes-pb-cfr
#16
EDITORIAL
Kenta Nakamura, Larry S Dean
Pressure-bound (pb) coronary flow reserve (CFR) is a novel estimation of CFR, calculated from easily obtained baseline and hyperemic pressure assessment Validation of pb-CFR in previously reported lesions showed accuracy of 84% to CFR with sensitivity of 96% and specificity of 60% FFR >0.75 and low pb-CFR in DEFER was associated with increased angina and complications compared to high pb-CFR and this risk was not modified by elective revascularization.
November 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29148163/development-and-validation-of-a-high-performance-liquid-chromatography-method-for-determination-of-lisinopril-in-human-plasma-by-magnetic-solid-phase-extraction-and-pre-column-derivatization
#17
Noushin Rastkari, Reza Ahmadkhaniha
A sensitive, reliable and simple HPLC method was developed for the determination of lisinopril in human plasma. The method consists of extraction and clean-up steps based on magnetic solid-phase extraction and pre-column derivatization with a fluorescent reagent. The mobile phase consisted of a mixture of methanol-sodium dihydrogen phosphate (pH 3.0; 0.005 m; 75:25, v/v). The flow rate was set at 0.7 mL/min. Fluorescence detection was performed at 470nm excitation and 530nm emission wavelengths. Total chromatography run time was 5 min...
November 16, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/29148142/outcomes-of-primary-percutaneous-coronary-intervention-in-acute-myocardial-infarction-due-to-unprotected-left-main-thrombosis-the-asia-pacific-left-main-st-elevation-registry-aster
#18
Jonathan Yap, Gagan D Singh, Jung-Sun Kim, Krishan Soni, Kelvin Chua, Alvin Neo, Choong Hou Koh, Ehrin J Armstrong, Stephen W Waldo, Kendrick A Shunk, Reginald I Low, Myeong-Ki Hong, Yangsoo Jang, Khung Keong Yeo
INTRODUCTION: Prior studies of ULM STEMI have been confined to small cohorts. Recent registry data with larger patient cohorts have shown contrasting results. We aim to study the outcomes of patients with unprotected left main (ULM) ST-elevation myocardial infarction (STEMI) who underwent primary percutaneous coronary intervention (PCI). METHODS: The Asia-pacific left main ST-Elevation Registry (ASTER) is a multicenter retrospective registry involving 4 sites in Singapore, South Korea, and the United States...
November 16, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29148102/adaptive-integrated-parallel-reception-excitation-and-shimming-ipres-a-with-microelectromechanical-systems-switches
#19
Dean Darnell, Yixin Ma, Hongyuan Wang, Fraser Robb, Allen W Song, Trong-Kha Truong
PURPOSE: Integrated parallel reception, excitation, and shimming coil arrays with N shim loops per radio-frequency (RF) coil element (iPRES(N)) allow an RF current and N direct currents (DC) to flow in each coil element, enabling simultaneous reception/excitation and shimming of highly localized B0 inhomogeneities. The purpose of this work was to reduce the cost and complexity of this design by reducing the number of DC power supplies required by a factor N, while maintaining a high RF and shimming performance...
November 16, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29148024/blue-planet-dialysis-novel-water-sparing-strategies-for-reducing-dialysate-flow
#20
Alejandra Molano-Triviño, Benjamin Wancjer, Mauro M Neri, Akash N Karopadi, Mitchell Rosner, Claudio Ronco
INTRODUCTION: Hemodialysis (HD) is an expensive therapy in economic and in ecological terms, owing to a high carbon footprint and significant consumption of natural sources, especially water. Our aim was to review strategies to diminish waste of water in maintenance dialysis, exploring previously described water reuse trends and less known strategies for reducing the dialysate flow. METHODS: We conducted a systematic review of water-sparing strategies, including the reuse of reverse osmosis rejected water and the reduction of dialysate flux...
November 8, 2017: International Journal of Artificial Organs
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