ali acute respiratory distress syndrome ards
Báo cáo y học: "Tetra-O-methyl nordihydroguaiaretic acid (Terameprocol) inhibits the NF-B-dependent transcription of TNF-a and MCP-1/CCL2 genes by preventing RelA from binding its cognate sites on DNA" ppsx
... for various amounts of time To visualize NF-B subcellular localization at the end of each treatment period, cells were briefly washed with phosphate-buffered saline, fixed in 4% paraformaldehyde, ... the phosphorylated serine 32 residue of IB-a and total IB-a protein (Cell Signaling; Beverly, MA) Bands were visualized using the SuperSignal Chemiluminescent system (Pierce) Immunofluorescence ... inhibits the signaling pathway that results in RelA translocation into the nucleus TLR3/8 transcription was blocked more effectively than was TLR4 Since both TLR3 and are localized to endosomal...
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Tài liệu Báo cáo khoa học: Solution NMR structure of five representative glycosylated polyene macrolide antibiotics with a sterol-dependent antifungal activity doc
... results were visualized using the program MOLMOL version 2.4 [50] Starting from 30 randomized coordinates, the sampling of the conformational space was performed following a simulated annealing protocol ... solvent or polyene macrolide nature (Fig 3); and (c) methyl, ethyl or propyl resonances in the aliphatic region (d 0.95–1.25 p.p.m.) located near the lactone function D-mycosamine NMR-derived ... Fig Asterisks indicate residual signals of the solvent (d 3.31 and 4.87 p.p.m.) Fig Ethylenic-to-aliphatic region (F2, F1 axis) of the phase sensitive DQF-COSY spectrum of nystatin A1, mM in MeOH-d4...
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Tài liệu Báo cáo Y học: Ornithine decarboxylase-antizyme is rapidly degraded through a mechanism that requires functional ubiquitin-dependent proteolytic activity pot
... [24,25] In the present study we have further investigated the metabolic fate of antizyme in mammalian cells We show here that like ODC, antizyme is rapidly degraded by the proteasome However, ... restrictive temperature EXPERIMENTAL PROCEDURES Materials Proteasome inhibitors MG115 (Z-Leu-Leu-Norvalinal) and MG132 (Z-Leu-Leu-Leucinal) were from Calbiochem Tissue culture reagents and chemicals ... by M Oren) Constructs Z1 rat antizyme DNA [26] was cloned into the pSVL vector (Pharmacia) as a SalI (5¢)–ClaI (3¢) fragment FLFS wildtype rat antizyme DNA (containing the two initiation codons)...
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Báo cáo khoa học: Characterization of the bga1-encoded glycoside hydrolase family 35 b-galactosidase of Hypocrea jecorina with galacto-b-D-galactanase activity pdf
... and study its substrate profile We reasoned that this information may provide us with a hint towards the role of this enzyme in the physiology of the fungus, as well as to its potential use in ... phosphate, sulfate) Bga1 is stable over a broad range of pH values, which extends far into the alkaline pH range and inactivation occurs rapidly only below pH 3.0 (data not shown) Incubation of ... 4): maximal activity was found at pH 5.0 and 60 °C, and a substantial decrease was noted at alkaline pH and at temperatures > 60 °C The enzyme retained more activity at acidic pH Substrate specificity...
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Báo cáo khoa học: Lending a helping hand, screening chemical libraries for compounds that enhance b-hexosaminidase A activity in GM2 gangliosidosis cells pptx
... disease (i.e juvenile ⁄ subacute or adult ⁄ chronic variants) The life expectancy of patients with the adult forms (ATSD or ASD) may not be seriously lowered, but their quality of life continually ... and NGT-treated ATSD cells (C, D) Increased colocalization (merge-yellow) of mutant bR505Q-containing Hex isozymes in an ASD patient cell line, visualized with anti-b-subunit Hex (anti-Hex) IgG ... (2001) Phase I and pharmacokinetic study of LU79553, a DNA intercalating bisnaphthalimide, in patients with solid malignancies J Clin Oncol 19, 857–869 Maegawa GH, Tropak M, Butner J, Stockley T,...
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Báo cáo khoa học: Selection of peptides inhibiting a b-lactamase-like activity docx
... were reprecipitated in PEG/NaCl for h at °C The library was finally recovered in mL Tris-buffered saline (TBS), pH 7.5, containing 50 mM Tris/HCl and 150 mM NaCl The library was stored at )20 °C ... adjusted at pH 2.2 by the addition of solid glycine The pH of the collected phage solution was neutralized by 11% of M Tris (v/v) The enrichment of the starting library in phage specific for the IgG ... precycle at 94 °C for 10 and 35 cycles of denaturation at 94 °C for min, AB 348 and AB 349 primers annealing at 54 °C for and elongation at 72 °C for 1.5 Taq DNA polymerase was purchased from New England...
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Báo cáo y học: "Increased interleukin-17 production via a phosphoinositide 3-kinase/Akt and nuclear factor κB-dependent pathway in patients with rheumatoid arthritis" ppt
... investigate IL-17 production in PBMC of patients with RA and its signaling transduction pathway We found that the intracellular signaling pathway involving phosphoinositide 3-kinase (PI3K)/Akt and ... phosphate-buffered saline/Tween 20, and then incubated with 500 ng/ml biotinylated mouse monoclonal antibodies against IL-17 (R & D Systems) for hours at room temperature After washing, streptavidin–alkaline ... buffer (0.1% Tween 20 in Tris-buffered saline) at room temperature for hours, then primary antibodies against Akt, phosphorylated Akt and IκB-α (Cell Signaling Technology Inc., Beverly, MA, USA),...
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Báo cáo y học: "Tumor necrosis factor-alpha promotes survival in methotrexate-exposed macrophages by an NF-B-dependent pathwa" pptx
... (Sydney, NSW, Australia) Methotrexate was provided by Mayne Pharma Pty Ltd (Adelaide, South Australia, Australia) Etanercept came from Wyeth Australia Pty Ltd (Sydney, NSW, Australia) Recombinant ... R&D Systems (Sydney, NSW, Australia) Annexin V conjugated to phycoerythrin (Annexin V-PE) and 7-amino-actinomycin (7-AAD) were from BD Biosciences (Sydney, NSW, Australia) Parthenolide was purchased ... Centre for Orthopaedic Research, University of Western Australia [18] All other reagents were sourced from Sigma-Aldrich (Sydney, NSW, Australia), unless otherwise indicated Cell culture RAW264.7...
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Tài liệu Báo cáo khoa học: Functional characterization of an orphan cupin protein from Burkholderia xenovorans reveals a mononuclear nonheme Fe2+-dependent oxygenase that cleaves b-diketones ppt
... for Bxe_2876 (A) Multiple sequence alignment of Bxe_A2876 with Acinetobacter johnsonii Dke1 (AjDKE) and RgCarb (RgCAR) The sequence alignment was performed with ALIGNX as a component of VECTOR NTI ... was used for sequence analysis The alignx module, which uses a modified clustalw algorithm, was employed for multiple sequence alignments Results of the automated alignment were adjusted manually ... optical emission spectrometer (Spectro Ciros Vision EOP, Kleve, Germany) calibrated with Fe, Zn, Cu, Ni and Mn standards in the range £ 500 lgÆL)1 The wavelengths used were 238.204 nm (Fe), 213.856...
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Tài liệu Báo cáo khoa học: Regulation of cathepsin B activity by 2A2 monoclonal antibody docx
... cathepsin B neutralizing 2A2 mAb and its Fab fragment (A) SDS ⁄ PAGE of the Fab fragment (lane 2); low molecular weight standards (lane 1) (B) IEF of 2A2 mAb (lane 2); IEF standards (lane 1) Friguet ... molecular weights were calculated from the calibration curve: elution volume = )5.76 · logMW + 42.07 (R2 = 0.9778), which was obtained with the calibration standards: aldolase (160 kDa), BSA (67 kDa), ... approach is to use monoclonal antibodies (mAbs) that bind specifically to the protease and neutralize its biological activity In the last decade, mAbs have become an important part of the modern...
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Tài liệu Báo cáo khoa học: Dual P2Y12 receptor signaling in thrombin-stimulated platelets – involvement of phosphoinositide 3-kinase b but not c isoform in Ca2+ mobilization and procoagulant activity pdf
... 2007 FEBS Dual P2Y12 signaling in thrombin-stimulated platelets P E J van der Meijden et al A B Fig P2Y12 prolongs thrombin-induced Ca2+ responses partly via PI3-K signaling Fura-2-loaded platelets ... Journal compilation ª 2007 FEBS 373 Dual P2Y12 signaling in thrombin-stimulated platelets P E J van der Meijden et al Table Contribution of P2Y12 signaling to thrombin- and ADP-induced Ca2+ responses ... Ca2+-dependent response, which in turn Dual P2Y12 signaling in thrombin-stimulated platelets mediates thrombin generation, this indicates that P2Y12 signaling via PI3-Kb plays a regulating role in the...
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Tài liệu Báo cáo khoa học: Glycation of low-density lipoprotein results in the time-dependent accumulation of cholesteryl esters and apolipoprotein B-100 protein in primary human monocyte-derived macrophages docx
... Kilsyth, VIC, Australia): glucose Bio-Rad (Regents Park, NSW, Australia): Chelex-100 resin ICN (Seven Hills, NSW, Australia): CuSO4 Amersham Biosciences (Castle Hill, NSW, Australia): PD10 columns ... grants from the Diabetes Australia Research Trust and the Australian Research Council B E Brown and I Rashid gratefully acknowledge receipt of Australian Postgraduate Awards administered through ... CiÆmg)1 iodide) JRH Biosciences (CSL, North Ryde, NSW, Australia): RPMI-1640 medium Trace Scientific (Melbourne, VC, Australia): glutamine Australian Red Cross, Clarence St Blood Bank: human serum Axis-Shield...
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Tài liệu Báo cáo khoa học: Design, structure and biological activity of b-turn peptides of CD2 protein for inhibition of T-cell adhesion ppt
... solution was prepared in phosphate buffered saline (NaCl/Pi) and 0.25% (v/v) dimethylsulfoxide Cell suspensions and peptide solutions (80, 200 and 500 lM) were aliquoted into a 48-well cell culture ... for T-cell adhesion inhibition (Eur J Biochem 271) 2875 Fig Sequence alignment of rat CD2 and human CD2 (hCD 2; CLUSTALW alignment) Residues of domain and are shown #, Interface contact residues ... the time of exposure of Caco-2/Jurkat cells during the adherence assay The cell viabilities were validated by incubating with mgÆmL)1 MTT at 37 °C for h The MTT-labeled cells were lysed by dimethylsulfoxide...
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Tài liệu Báo cáo khoa học: The Alzheimer b-peptide shows temperature-dependent transitions between left-handed 31-helix, b-strand and random coil secondary structures doc
... after which they return towards a random coil average The two phenylalanines in the central hydrophobic cluster, Phe19 and Phe20, have / dihedral angles much shifted towards a b-strand conformation ... than the native type peptide Also the shift towards random coil appeared at lower temperature These observations indicate that the transition towards b-strand occurs at lower temperatures in the ... that residues 28 begin in a PII-rich average conformation at C, move towards a b-strand conformation at 2030 C, and nally towards random coil at 60 C Residues 1724 display a more complex temperature...
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Tài liệu Báo cáo khoa học: Molecular characterization and allergenic activity of Lyc e 2 (b-fructofuranosidase), a glycosylated allergen of tomato pdf
... Uppsala, Sweden) according to the manufacturer’s instructions In addition, a covalink-ELISA was performed in 96 well Covalink-plates (Nunc GmbH & Co KG, Wiesbaden, Germany) as previously described ... reactivity, streptavidin conjugated with horseradish peroxidase instead of alkaline phosphatase was used After visualization of the enzymatic activity with tetramethylbenzidine as substrate at ... antibodies was performed with an alkaline phosphatase conjugated anti-(human IgE) Ig (Pharmingen, Hamburg, Germany, : 750 dilution, h) and the Bio-Rad alkaline phosphatase conjugate substrate...
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Tài liệu Báo cáo Y học: Characterization and regulation of yeast Ca2+-dependent phosphatidylethanolamine-phospholipase D activity docx
... Localization and possible functions of phospholipase D isozymes Biochim Biophys Acta 1439, 245–263 Rose, K., Rudge, S.A., Frohman, M.A., Morris, A.J & Engebrecht, J (1995) Phospholipase D signaling ... Spring Harbor, NY 23 Danin, M., Chalifa, V., Mohn, H., Schmidt, U.S & Liscovitch, M ¨ (1993) Rat brain membrane-bound phospholipase D In Lipid Metabolism in Signaling Systems (Fain, J.N., ed.), ... upon yeast entry into the cell cycle Different lines of evidence support a biological role for mammalian PLDs during vesicle formation, budding, transport, docking and fusion to target membranes...
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Báo cáo khoa học: The N-terminal hybrid binding domain of RNase HI from Thermotoga maritima is important for substrate binding and Mg2+-dependent activity pot
... Garner A, Parmar R, Griffith E, Ali M, Semple C, Aicardi J, Babul-Hirji R et al (2006) Mutations in genes encoding ribonuclease H2 subunits cause Aicardi-Goutieres syndrome and mimic congenital ... Journal compilation ª 2010 FEBS 4475 Role of HBD from T maritima RNase HI N Jongruja et al Fig Alignment of the amino acid sequences The amino acid sequence of Tma-RNase HI (Tma) is compared ... Grinberg A, Love PE & Crouch RJ (2003) Failure to produce mitochondrial DNA results in embryonic lethality in Rnaseh1 null mice Mol Cell 11, 807–815 Dean NM & Bennett CF (2003) Antisense oligonucleotide-based...
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Báo cáo khoa học: Autocatalytic processing of procathepsin B is triggered by proenzyme activity doc
... active form This appears to be a dynamic equilibrium, which is shifted towards the inactive form at neutral pH and towards the active form at acidic pH, consistent with the inability of procathepsin ... procathepsin B in the presence of (s), 1.7 (d), 8.5 (h), 17 ( ) and 34 (D) nM E-64 at pH 4.5 and 37 °C Aliquots were taken from the reaction mixtures and added to 10 lM Z-Arg-Arg-NH-MEC substrate solution ... processing After demonstrating that the zymogen can exhibit catalytic activity, we next aimed to validate the zymogen activity on other substrates Therefore, we performed a mutation analysis of...
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Báo cáo khoa học: Analysis of the NADH-dependent retinaldehyde reductase activity of amphioxus retinol dehydrogenase enzymes enhances our understanding of the evolution of the retinol dehydrogenase family pot
... proteins, with no nuclear staining or plasma membrane localization observed (Fig 2B,C) GFP fusion was used to visualize the intracellular localization in living cells, thereby avoiding any artefacts ... subcellular localization of the RDH2 enzyme (RDH21)335) fused to the b-galactosidase protein was also consistent with a typical pattern of ER-associated proteins (Fig 2M) Fig ER subcellular localization ... and GFP (L) ER-tracker Blue White DPX marker was used to specifically visualize the ER in living cells (F, J) (M–R) Localization of RDH2-b-galactosidase chimeric proteins COS-7 cells were transfected...
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