clinical applications of kinase inhibitors in solid tumors
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"
... Ca2+ influx (41) The increased activity of NOS and the increased formation of NO in brain in anoxia as observed by increase in NOx concentration in this study support the earlier findings of NO involvement ... brain regions significantly in anoxia suggesting an increased utilization of citrulline for the production of arginine in anoxia In reperfusion group the activities of these enzymes were increased ... continuous supply of arginine at the site of synthesis Arginine is a semi essential amino acid and in CNS, its availability depends upon: (a) uptake from the circulating arginine and (b) recycling...
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Báo cáo khoa học: Calcium, mitochondria and oxidative stress in neuronal pathology Novel aspects of an enduring theme pdf
... increase in the amount of ROS [21]; (b) loss of cytochrome c impairs the flow of electrons in the respiratory chain inducing overreduction of the complexes, favouring the generation of ROS [16,17,22]; ... element binding protein, isocitrate dehydrogenase is an RNA-binding protein, while kgd2p is a mitochondrial DNA binding protein [81–84] Mitochondria from different brain regions contain different ... 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 of the,...
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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
... 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, ... containing 40 lg of protein were electrophoresed on 12% SDS ⁄ polyacrylamide gels with 0.25 mgÆmL)1 myelin basic protein embedded in the separating gel as a kinase substrate evaluated by DAB staining...
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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
... a DNA-binding protein that binds to elements in the vicinity of Yap1 binding site [52] Alternatively, the increased reducing power of tsa1 mutant, achieved by the expression elevation of GSH1, ... cells in all of the conditions tested (Fig 6) In spite of the increased basal expression levels of a variety of genes in tsa1 cells, we did not observe GFP-Yap1 accumulation in the nucleus of these ... to alteration in Yap1 cellular distribution Probably other factors, such as ability of Yap1 to bind DNA [51], are also involved in the activation of genes involved in the response of yeast to oxidative...
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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
... therein) While zinc binding occurs in the reduced state of monomeric CesA protein, oxidation leads to homo- or heterodimerization of CesA by formation of intermolecular disulfide bonds (involving ... annexin Fig The three-dimensional structure of Anx(Gh1) (A) The fold of Anx(Gh1) as seen in a side view Domain I is coloured in dark blue, domain II in light blue, domain III in aquamarine, and ... 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...
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Báo cáo khoa học: Photodynamic treatment and H2O2-induced oxidative stress result in different patterns of cellular protein oxidation ppt
... fingerprints of trypsin digests of the spots of interest obtained with MALDI-TOF, followed by a database search with the Mascot software for peptide mapping result) and matching of our protein maps ... 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) ... Matching the blot with the protein map shows that PDT caused labeling of a-tubulin and b-tubulin (spots and 2) The minor spot probably reflects labeling of a small fraction of actin The rest of...
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báo cáo hóa học: " Brain inflammation and oxidative stress in a transgenic mouse model of Alzheimer-like brain amyloidosis" pptx
... chronic treatment with a subset of NSAIDs (e.g ibuprofen, flurbiprofen, indomethacin) reduced brain inflammation and Aβ levels in addition to the deposition of Aβ in brain [13,14] Despite this evidence, ... burden in the hippocampus of these mice [16] However, recent studies indicate that a subset of NSAIDs, including indomethacin, also possesses a direct, COXindependent Aβ-lowering capacity in cell ... http://www.jneuroinflammation.com/content/1/1/21 Indomethacin Vitamin E Figure Representative pictures of brain sections from mice on placebo or receiving indomethacin plus vitamin E Representative pictures of brain sections from...
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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
... described, using dinitrophenylhydrazine [19] Briefly, samples were normalized to a concentration of mg protein/ml We then treated 0.5 ml of serum with 0.5 ml of 10 mM dinitrophenylhydrazine in M HCl, ... 14 (7.4 ± 2) Ongoing angiotensin-converting enzyme inhibitors (no patients) Ongoing low-dose aspirin therapy (no patients) 25 Values are number (%) of patients unless otherwise indicated DLCO, ... carbon 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...
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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
... freely into cells, being hydrolyzed by intracellular esterases to 2',7'-dichlorodihydrofluorescein, which is cell membrane impermeable In the presence of ROS, 2',7'-dichlorodihydrofluorescein is ... activation of AMP-activated protein kinase in DU145 prostate carcinoma J Biol Chem 2005, 280:9963-9972 Natsuizaka M, Ozasa M, Darmanin S, Miyamoto M, Kondo S, Kamada S, Shindoh M, Higashino F, Suhara ... at 37°C for 30 minutes, in the presence or absence of cytochalasin B 10 μM (Calbiochem), a specific inhibitor of the majority of the facilitative glucose transporters, to determine the nonspecific...
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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
... shown to induce mutations in the D310 region; this finding may explain the high frequency of homoplasmic D310 somatic mutations in many types of tumors [13] The number of cytosines in the first ... Mix 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 ... measurement of mtDNA copy number L-CL collected clinical data of subjects C-WL performed measurement of oxidative stress biomarkers P-WW assisted in the design of the study M-MT assisted in the drafting...
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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
... 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, ... Discussion In the present study, the expression of a total of 15 gene products involved in copper metabolism of Doberman pinschers was measured This provided insight into the molecular pathways of a ... Protein precision marker 10 kDa Figure Western blot analysis of the metallothionein proteins Western blot analysis of the metallothionein proteins Immunoreactive bands of total metallothionein of...
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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
... 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 ... rupture of alveolar septa However, by staining with hematoxylin and eosin stain, we found patches of fibrosis, which was in agreement with previous investigations [68,69]; the increase in hydroxyproline ... attenuated by BA administration An increased eosinophil number in BALF was reported following intratracheal BL administration, suggesting an immunological component of BL-induced pulmonary toxicity...
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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
... Hawkins H, Szabo C, Traber DL: Protective effect of 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 ... effects of the hydrogen sulfide donor Moreover, we did not assess the effects of NaHS on inflammation and oxidative stress in non hemorrhagic rats since the injection of a single dose of 0.2 mg/kg of ... = 10) in the aorta (a) and heart (c) of the two groups of rats (b, d) Western blots revealing iNOS expression in the in the whole lysate of aortas (n = 6) (b) and in hearts (n = 6) (d) of two...
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Tài liệu Phytohormones and Abiotic Stress Tolerance in Plants ppt
... harpin-induced 1) was increased in tobacco leaves On the other hand, spermine induces mitochondrial dysfunction and activation of SA-induced protein kinase (SIPK) and wound-induced protein kinase ... domain of receptor kinase, BRI1 activates the receptor Kinase activity of BRI1 releases the inhibitory BRI1 kinase inhibitor (BKI1) protein from the plasma membrane and increases the affinity of ... Furthermore, minimal binding domain of BRI1 was determined using binding assays and recombinant BRI1 fragments (Kinoshita et al 2005) In other plant species, it was also shown that mutations in BRI1...
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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
... for scintillation counting Creatine kinase determination Creatine kinase activity was assayed following the method of Bernt and Bergmeyer [24], in the presence of fructose (50 mM) to determine ... aggregation of lens proteins and enzymes These protective capabilities have been demonstrated with other, in vitro systems, including prevention of aggregation of insulin B chain following reduction of ... a-crystallin provided against Na/K-ATPase inactivation was not due to the removal of fructose by binding to a-crystallin, BSA was resealed (in the same manner and concentration as that of a-crystallin)...
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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
... quenching (qE) of excess light involves a ΔpH-induced activation of the xanthophyll cycle in which a violaxanthin de-epoxidase converts violaxanthin (V) into antheraxanthin (A) and zeaxanthin (Z) ... resulting in higher expression of the GPXH gene Increased oxidative stress resistance of many of these mutants confirms the importance of the O2-induced genetic response in the defense against ROSinduced ... changes (Figure 5C) A general increase in antioxidant levels including zeaxanthin, antheraxanthin, lutein and a-tocopherol and a significant rise in NPQ was detected in strain 14H8, where no stimulated...
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Báo cáo y học: " Diametrically opposed effects of hypoxia and oxidative stress on two viral transactivators" pdf
... RD, Howley PM: Conserved cysteine residue in the DNA-binding domain of the bovine papillomavirus type E2 protein confers redox regulation of the DNA-binding activity in vitro Proc Natl Acad Sci ... and the domains that are redox-responsive EBNA1's DNA-binding domain (DBD) (a.a 451-641) is used to bind the 20 EBNA1-binding sites in FR [39] The UR1 domain of EBNA1 (a.a 65-89) contains a redox-regulated ... prematurely terminated Our results, and those of others, indicate that oxidizing conditions increase the expression of a TAR-dependent reporter in Page 10 of 12 the presence of Tat [24] In addition,...
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Báo cáo khoa học: " Expression of cell surface receptors and oxidative metabolism modulation in the clinical continuum of sepsis" ppt
... 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 ... 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 ... groups of patients and controls The expression of these integrins on neutrophils is clearly induced ex vivo upon LPS stimulation [38] In a clinical setting, Russwurm et al [20] found increased...
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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
... occurrence of these road traffic accidents (RTAs) [5] Frequent injuries sustained in most of the reported RTAs included bone fractures, which are often treated in specialized orthopedic hospitals in ... practices in various orthopedic hospitals and trauma units of other hospitals in Nigeria This study therefore assessed the prevalence of PTSD among injured victims of RTAs in an orthopedic setting in ... were fluent in English language, they were interviewed with the English version of PTSD module of the Mini International Neuropsychiatric Interview (M.I.N.I) [10] to make a diagnosis of PTSD The...
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spatial variability and terminal density implications in soil behavior
... Environmental Engineering Georgia Institute of Technology Dr J David Frost Professor, School of Civil and Environmental Engineering Director, Regional Engineering Program Georgia Institute of Technology ... Glenn J Rix Professor, School of Civil and Environmental Engineering Georgia Institute of Technology Dr Guillermo H Goldsztein Professor, School of Mathematics Georgia Institute of Technology ... 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...
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