aberrant signaling pathways in pancreatic cancer opportunities for targeted therapeutics
Báo cáo y học: "NITRIC OXIDE (NO), CITRULLINE – NO CYCLE ENZYMES, GLUTAMINE SYNTHETASE AND OXIDATIVE STRESS IN ANOXIA (HYPOBARIC HYPOXIA) AND REPERFUSION IN RAT BRAIN"
... arginase in the study AS and AL activities increased in all the three brain regions significantly in anoxia suggesting an increased utilization of citrulline for the production of arginine in ... cycle (18) Arginine in brain is also utilized by arginase (EC 3.5.3.1) for production of ornithine Co-induction of AS, cationic amino acid transporter-2, and NOS in activated murine microglial ... observed by increase in NOx concentration in this study support the earlier findings of NO involvement in pathophysiology of hypobaric hypoxia in brain (42-43) In this study the increased activity...
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Báo cáo khoa học: Calcium, mitochondria and oxidative stress in neuronal pathology Novel aspects of an enduring theme pdf
... functions, in addition to having supporting functions for oxidative defences [79], involving the thioredoxin system [40] Aconitase acts also as an iron-responsive element binding protein, isocitrate ... buffer the incoming calcium resulting in an abrupt, sustained and irreversible increase in [Ca2+]c, probably coincides with the cleavage of the exchanger (but see [164]) Therefore, inhibition ... few minutes later leads to an irreversible and sustained increase in intracellular [Ca2+]c in apical dendrites [151] DCD is invariably demonstrated in every neuronal cell type studied, i.e spinal...
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Báo cáo khoa học: Cotton GhMPK2 is involved in multiple signaling pathways and mediates defense responses to pathogen infection and oxidative stress doc
... is involved in multiple signaling pathways a wide range of substrates, and it has been suggested to be the integrative point of multiple pathways [3] The MAPK cascade consists of three interlinked ... protein kinase and woundinduced protein kinase, two MAPKs in group A, were activated by inoculation with the tobacco mosaic virus (TMV) [10] Their orthologs in other plant species, including MPK3 ... and MPK6 in Arabidopsis (group A MAPKs), SIMK and SAMK in alfalfa, and LeMPK1 ⁄ (Lycopersicon esculentum SA-induced protein kinase) and LeMPK3 (L esculentum woundinduced protein kinase) in tomato,...
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Báo cáo khoa học: Yeast oxidative stress response Influences of cytosolic thioredoxin peroxidase I and of the mitochondrial functional state pot
... detoxifying enzymes, but the recent finding that this protein possesses chaperone activity under stressful conditions provides a very tempting explanation for the distinctive role of cTPxI in protecting ... showing that Yap1 binding activity may be affected It was shown that the accessibility of Yap1 to the GSH1 promoter could be repressed by Cbf1, a DNA-binding protein that binds to elements in ... of the strains BY4741 (WT), and mutants indicated on YPD plates containing no chemicals as a control, 0.8 mM H2O2, 0.1 lgÆmL)1 antimycin A (anti A), and 2.5 lgÆmL)1 FCCP singly or in association...
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Báo cáo khoa học: The crystal structure of annexin Gh1 from Gossypium hirsutum reveals an unusual S3 cluster Implications for cellulose synthase complex formation and oxidative stress response potx
... calcium binding sites in annexins is conserved in domain I only and is present in a modified form in the fourth domain Despite extensive efforts, we have not yet been successful in obtaining a calcium-bound ... calcium binding in the loops of domain I might be possible in Anx(Gh1), in contrast to the bell pepper annexin The protein contains a highly unusual sulfur cluster formed by two adjacent cysteine ... cotton annexin, in contrast to the bell pepper protein, provides canonical calcium binding sites in the first domain The observed conformation of the other domains does not allow binding of divalent...
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Báo cáo khoa học: Photodynamic treatment and H2O2-induced oxidative stress result in different patterns of cellular protein oxidation ppt
... (A) and (B) Silver staining is shown in (C) and (D) in blue superimposed with the spots of oxidized proteins shown in red Protein labels: 1, a-tubulin; 2, b-tubulin; 3, actin; 4, PDI; 5, BiP; 6, ... crosslinking of proteins Kinetics of the FMN- 24 25 26 27 28 29 30 31 32 33 34 35 36 and rose bengal-sensitized photooxidation and intermolecular crosslinking of model tyrosine-containing N-(2-hydroxypropyl) ... tubulin, the cells subjected to PDT were briefly incubated with propidium iodide for min, fixed with methanol at )20 °C for min, permeabilized with 0.1% (v/v) Triton X-100 in NaCl/Pi for 15 min,...
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báo cáo hóa học: " Brain inflammation and oxidative stress in a transgenic mouse model of Alzheimer-like brain amyloidosis" pptx
... Placebo Indomethacin Vit E 150 100 50 * Placebo Indomethacin Vit E Figure of markers indomethacin plus vitamin Effect of1 brain oxidative stress E supplementation on Effect of indomethacin plus ... that a full dose of indomethacin alone despite a significant reduction in brain inflammation had only a marginal effect on brain oxidative stress in the Tg2576 mice [16] This finding suggests that ... pH 7.0) containing protease inhibitor mixture (pepstatin A, leupeptin, N-tosyl-L-phenylalanine chloromethyl ketone, http://www.jneuroinflammation.com/content/1/1/21 soybean trypsin inhibitor, each...
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Báo cáo y học: "Nifedipine decreases sVCAM-1 concentrations and oxidative stress in systemic sclerosis but does not affect the concentrations of vascular endothelial growth factor or its soluble receptor" potx
... production, including hypoxic conditions and stimulation by transforming growth factor, CD40 ligand, interleukin 1, or interleukin [10] Oxidative stress also promotes angiogenesis [13] The link between ... monoxide diffusion in the lung; Hb, hemoglobin in ml of M guanidine in 20 mM potassium phosphate, adjusted to pH 2.3 with trifluoracetic acid; the resulting solution was incubated at 37°C for 15 Carbonyl ... transforming growth factor Inter- and intra-assay variances for VEGF, sVEGFR-1, and sVCAM-1 were lower than 10% The minimum detectable concentration was less than pg/ml for VEGF, less than pg/ml for...
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Báo cáo y học: " Impaired glucose transporter-1 degradation and increased glucose transport and oxidative stress in response to high glucose in chondrocytes from osteoarthritic versus normal human cartilag" pps
... reflects that in the plasma, both under normal conditions and in noninflammatory and inflammatory types of arthritis, excluding those associated with infections [12] To our knowledge, no information ... Nonproliferating monolayer cultures were established from each cartilage sample, allowed to recover in medium containing 5% fetal bovine serum for 24 hours, serum-starved overnight and maintained thereafter ... chondrocytes that had been incubated in high glucose medium for hour increased similarly when compared with their respective control cells maintained in RGM (Figure 7b) This indicates that exposure...
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Báo cáo khoa hoc:" Lack of association between mutations of gene-encoding mitochondrial D310 (displacement loop) mononucleotide repeat and oxidative stress in chronic dialysis patients in Taiwan" ppsx
... containing μmol (final concentration 0.4 μM) of forward and reverse primers in a final volume of 20 μl PCR reactions were conducted as follows: initially at 50°C for min, 95°C for min, 40 cycles for ... receiving CAPD and hemodialysis (HD) for more than months; showed no evidence of chronic or acute infections, inflammatory disorders, and malignancy; and were not using anti-inflammatory drugs for ... 95°C for 15 s, annealing at 60°C for 20 s, and primer extension at 72°C for 15 s, and finally at 25°C The threshold cycle number (Ct) values of the Chr1 gene and ND2 gene were determined for each...
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Báo cáo y học: "Differential expression of copper-associated and oxidative stress related proteins in a new variant of copper toxicosis in Doberman pinscher" potx
... Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward Reversed Forward ... with copper incorporated during biosynthesis Metallothionein 1A (MT1A) is a small intracellular protein capable of chelating several metal ions, including copper It contains many cysteine residues, ... responsible for converting oxidized glutathione (GSSG) into its reduced form (GSH) is induced slightly in mRNA expression in the N-CASH group, and is doubled in the Page of 13 (page number not for citation...
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Báo cáo y học: "Boswellic acids extract attenuates pulmonary fibrosis induced by bleomycin and oxidative stress from gamma irradiation in rats" doc
... [35], or inhibiting TGF-ß pathways, through a negative regulator of TGF-ß1 signaling [36] Therefore, therapeutic strategies to inhibit TGF-ß1 by interfering with the receptor signaling process ... important role in the development of pulmonary fibrosis [18,19] The gum resin of Boswellia serrata, a kind of deciduous tree found in parts of China and India has long been used for treating inflammatory ... determined according to Sinha [58] Histological examination The lungs were removed, inflated at 25 cm pressure with PBS then fixed, embedded in paraffin, sectioned and stained with hematoxylin and...
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Báo cáo y học: "Effects of hydrogen sulfide on hemodynamics, inflammatory response and oxidative stress during resuscitated hemorrhagic shock in rats" potx
... hydrogen sulfide in a murine model of acute lung injury induced by combined burn and smoke inhalation Clin Sci (Lond) 2008, 115:91-97 31 Maines MD, Mayer RD, Ewing JF, McCoubrey WK Jr: Induction of ... (baseline) and every 10 minutes during the observation period In vitro measurements Determination by electron paramagnetic resonance (EPR) NO spin trapping Aorta and heart samples were incubated for ... induced by withdrawing approximately ml of blood collected in a heparinized syringe (200 UI) within 10 minutes until MAP decreased to 40 ± mmHg This state of controlled hemorrhage was maintained...
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Tài liệu Phytohormones and Abiotic Stress Tolerance in Plants ppt
... was indicated that the functions of the cytokinin-regulated genes reflect processes known to be targets of cytokinin signaling, including genes involved in cell expansion, other phytohormone pathways ... Yoshida et al 2002) were determined as positive regulators in ABA signaling Gene encoding ABA-induced protein kinase (PKABA1), which is a serine– threonine type protein kinase, was isolated from wheat ... Different components in the signaling network involving transcription, protein–protein interactions, and targeted protein destruction are nodes in crosstalk One of the key players in a complex network...
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Báo cáo khoa học: The molecular chaperone a-crystallin incorporated into red cell ghosts protects membrane Na/K-ATPase against glycation and oxidative stress ppt
... then incubated for h at 37 °C Samples from the ghost cells and the supernatants were taken for scintillation counting Creatine kinase determination Creatine kinase activity was assayed following ... cells are in their open form, allowing various proteins to be incorporated before resealing SDS/PAGE analyses of ghost cells alone showed the usual pattern for red cell membrane proteins (Fig ... centrifuged (5 min, 10 000 g) The supernatant was transferred into scintillation vials for Cerenkov counting in a b-scintillation spectrometer Flux was expressed as percentage control (mean of a minimum...
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báo cáo khoa học: " Characterization of singlet oxygen-accumulating mutants isolated in a screen for altered oxidative stress response in Chlamydomonas reinhardtii" ppsx
... found in strains 35H11 and 18F6 (Figure 2), indicating that mutations in a single nuclear gene is responsible for the increased GPXH expression in each case The same was true for 21B4 except for ... been found to be involved in NPQ in Chlamydomonas reinhardtii indicating that other unidentified components might function in photoprotection and prevention of 1O2 formation in photosynthetic ... strongly induced by the increased production of 1O2 in the chloroplast To identify components affecting 1O2-induced gene expression in C reinhardtii, a mutant screen was performed using the GPXH-arylsulfatase...
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Báo cáo y học: " Diametrically opposed effects of hypoxia and oxidative stress on two viral transactivators" pdf
... and binds 20 sites in the EBV FR through its DNA binding domain (DBD) EBNA1's UR1 domain, essential for transactivation, contains a redox-regulated cys-x-x-cys motif Tat is 87 a.a long and binds ... proteins to transactivate [18,24] Oxidation modifies cysteines in two distinct ways: 1) by oxidizing adjacent sulfhydryl groups to form inter- or intra-molecular disulfide bods, and 2) by oxidizing ... luciferase reporter in multiple cell-lines including epithelial lines such as 293 and the Hela derivative TZM-bl Therefore, after confirming that Tat transactivated an HIV-LTR reporter in C33a cells...
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Báo cáo khoa học: " Expression of cell surface receptors and oxidative metabolism modulation in the clinical continuum of sepsis" ppt
... Gram-negative bacteria, CD66b, a selectin with signaling functions [29], and CD11b and CD11c, integrins involved in adhesion with endothelial cells, as well as on signaling for LPS [30] Neutrophil activity ... 0.04) Accordingly, a positive correlation was found between fMLP-induced ROS generation and SOFA score, with increasing values being obtained in patients with SOFA scores ≥ (Figure 5) In this study ... adhesion involves the interaction of leukocyte integrins of the beta subfamily (CD11a, CD11b and CD11c) with endothelial ligand receptors [19] An increase in the expression of those integrins on...
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Báo cáo y học: "Road traffic accidents and posttraumatic stress disorder in an orthopedic setting in south-eastern Nigeria: a controlled study" doc
... is more important in the environment of Sub-Saharan Africa where patronage for insurance is very limited Conclusions The findings of this study point to the need for promoting development of ... (NOHE), Nigeria for follow up treatment from September to December 2008 Consecutive injured RTA victims who gave informed consent were interviewed Patients with history of head injury during the RTAs ... since the road traffic accidents occurred among the study subjects Mini International Neuropsychiatric Interview (M.I.N.I)[10] This is a short structured interviewer administered diagnostic instrument,...
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spatial variability and terminal density implications in soil behavior
... Cyclic loading – Small-to-intermediate strain – Numerical 94 4.2.3 Cyclic loading – Small-to-intermediate strain – Experimental Drained 97 4.2.4 Cyclic loading – Small-to-intermediate strain – Experimental ... in the inversion 76 xi 3.13 Inversion results for single drainage (at T=0.136) a) Single layer b) Summary of the results using RLSS methodology for two layers with different Cv 78 3.14 Inversion ... published by Wiedman in 1859 and by Neumann and E Hagenbach in 1860 (Rouse and Ince 1957; Sutera 1993) These formulations form the basis for Darcy’s findings (Brown 2002) In 1856, Henry Darcy...
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Tìm thêm: xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn xác định thời lượng học về mặt lí thuyết và thực tế điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng 9 tr 25