the role of oxidative stress and inflammation
báo cáo hóa học: " Biomarkers of oxidative stress and its association with the urinary reducing capacity in bus maintenance workers" pptx
... level and the urinary excretion of 8OHdG can be considered as a measure of the whole-body oxidative stress [20-22] The presence of 8OHdG in urine seems to originate mostly from the oxidation of the ... with the concentrations of the particle-related variables OC, NO x , and possibly the particulate copper content The increase of the oxidative stress marker was accompanied by an increase of urinary ... (Institute for Work and Health) for their help in the metal/creatinine analysis, and comments on the manuscript The medical team of the Institute for Work and Health (Prof Marcel-André Boillat, Dr...
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Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx
... position 13 of the other subunit [25,26], yielding a covalently bridged dimer The 4170 oxidized and reduced forms of the Y74C mutant had very different thermal stabilities While the stability of the ... and in the presence of denaturants [27] Extending these studies, we examine here the effect of increasing the bulk of the residue at position 74 Surprisingly, the Y74W mutant exhibited loss of ... across the dimer interface, while T75 interacts with N10 and E97 of the second subunit The backbone NH group of R98 forms a hydrogen bond with the backbone CO of F102 Furthermore, the orientation of...
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The effects of oxidative stress on female reproduction: a review ppt
... NO and the SO anion [21] In the absence of L-arginine [19] and in sustained settings of low antioxidant status [20], the intracellular production of the SO anion increases The elevation of the ... levels of NO [22] Within a cell, the actions of NO are dependent on its levels, the redox status of the cell, and the amount of metals, proteins, and thiols, amongst other factors [19] Since the ... sperm capacitation, and fusion of the sperm membrane and the oolemma are especially dependent on the presence of ROS [4,60] On the other hand, inappropriately high levels of ROS produced by spermatozoa...
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Báo cáo khoa học: The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B1 and B2 bradykinin receptors potx
... patterns of B2wt and of B1 ⁄ B2 chimeras reflect their agonist-inducible internalization The segment between the NPXXY motif and the conserved cysteine represents one of the regions with the highest ... influences the formation of a helical structure These authors proposed that activation of the receptor, and subsequently of the G protein, leads to a change in the environment of helix resulting in the ... to enhance their adherence Expression vectors The sequence of the human B2wt starting with the third encoded methionine [9], the sequence of the human B1wt, truncations and chimeras of both were...
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The role of sentence stress in enhancing english speaking competence of HPU english majors
... rhythm The stressed syllables are like the beats of the metronome: regular, loud, and clear The unstressed syllables between the beats are shortened, obscured, and joined together 26 The pattern of ... sweater Notice that the pitch of your voice rises at the major sentence stress, the first syllable of the word ―sweater‖, and falls over the second syllable of this word The pitch of the entire sentence ... important word in the sentence by giving it emphatic stress - Sentence stress marks the end of the sentence by giving the strongest stress to the last stressed syllable with the help of falling or...
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Báo cáo khoa học: Effect of oxidative stress and involvement of poly(ADP-ribose) polymerase (PARP) in Dictyostelium discoideum development doc
... 4A,B), and its role during oxidative stress is further confirmed by the use of low concentrations of benzamide Preincubation of cells with benzamide prevented the peak activity observed during oxidative ... known to play an important role under oxidative stress [21]; however, there is no report on the role of PARP in D discoideum development We have investigated the role of PARP in D discoideum development ... death in response to oxidative stress and hence are used as therapeutic molecules to control oxidative stress- related diseases [12] However, the consequences of the blockade of cell death by PARP...
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Báo cáo khoa học: The role of residues R97 and Y331 in modulating the pH optimum of an insect b-glycosidase of family 1 pdf
... As the pKa values of the catalytic residues determine the pH optima, the ionization constants (pKa) of the catalytic glutamates (E187 and E399) in the ES complex and in the free enzyme (E) of ... the expression of the recombinant b-glycosidases Lysis of induced bacteria Fig Schematic representation of the Sfbgly50 active site E399 is the nucleophile and E187 is the proton donor Y331 and ... b-glucosidase affected the rate constant of the glycosylation step and also changed the enzyme pH optimum [14] Despite that, the effect of the tyrosine on the pKa values of the b-glycosidase catalytic glutamates...
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Báo cáo khoa học: Dissecting the role of protein–protein and protein–nucleic acid interactions in MS2 bacteriophage stability potx
... urea-induced and GdnHCl-induced changes in the secondary structure of the proteins, we analyzed the UV CD spectra of MS2 and VLPs in the absence and presence of 5.0 m and 9.0 m urea and 3.5 m and 5.0 ... determined the effects on stability of genetic fusion of the two subunits of the dlFG dimer using the variant named 2CTdlFG, which takes advantage of the physical proximity of the N-terminus and C-termius ... Effect of pressure on the coat protein in the presence of bis-ANS for (n) dlFG and (e) sc-dlFG and in the absence of the probe for (m) dlFG and (r) sc-dlFG, was analyzed at room temperature The...
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the role of labour mobility and informal networks for knowledge transfer
... for explaining the determinants of economic growth The focus on labor and capital as the primary factors of production, and the general exclusion or trivialization of the role of knowledge, was ... skilled labor, and technology The neo-technology theories focused on the role of R&D and the creation of new economic knowledge in shaping the comparative advantage and flows of foreign direct ... function of the number and concentration of permanent links 199 Dispersion as a function of the number and concentration of permanent links 200 Expertise as a function of the number and concentration...
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Báo cáo hóa học: " The role of feed-forward and feedback processes for closed-loop prosthesis control" doc
... (ADC) on the the microcontroller, streamed to PC software Position sensors were attached to the thumb and forefinger, the wrist and the base of the object, to enable accurate Saunders and Vijayakumar ... random unpredictable delays to the hand controller In contrast to experiments and 2, where the control of the hand was repeatable and predictable, this experiment was designed to examine the role ... briefly before the start of the first trial, with full feedback sensibility, so that they could get used to the control mechanism of the hand Subjects performed the four blocks of the experiment...
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báo cáo hóa học:" The role of FGF-2 and BMP-2 in regulation of gene induction, cell proliferation and mineralization" pptx
... mineralizing RNA profile of igf-1, alp, and bmp-2 and significantly increased expression of other genes associated with mineralization like col1a1, fn, ilgf-1, noggin and oc Fgf-2, on the other hand, significantly ... matrix and promote healing [24] In this study, we have documented the relative efficiency of bone growth factors FGF-2, TGFb, and PGE2 markedly enhanced the synthesis of the total protein content of ... proliferation and mineralization [2,26-29] These two stages are the result of a specific sequential regulation of gene expression from the early phase of osteoblast proliferation to the final steps of mineralization...
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báo cáo hóa học:" The role of FGF-2 and BMP-2 in regulation of gene induction, cell proliferation and mineralization" pdf
... mineralizing RNA profile of igf-1, alp, and bmp-2 and significantly increased expression of other genes associated with mineralization like col1a1, fn, ilgf-1, noggin and oc Fgf-2, on the other hand, significantly ... matrix and promote healing [24] In this study, we have documented the relative efficiency of bone growth factors FGF-2, TGFb, and PGE2 markedly enhanced the synthesis of the total protein content of ... proliferation and mineralization [2,26-29] These two stages are the result of a specific sequential regulation of gene expression from the early phase of osteoblast proliferation to the final steps of mineralization...
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From Conflict to Peacebuilding The Role of Natural Resources and the Environment pdf
... equality, the rule of law and respect for and protection of human rights […] Recognizing the need to strengthen the important role of the United Nations in the prevention of violent conflicts, and ... emerged from the growing realization of the need to put the poor and all aspects of their lives and means of living at the centre of development and humanitarian work, while maintaining the sustainability ... and development activities, and requests the Secretary-General to submit a detailed review of the capacity of the United Nations system in the context of the report on the implementation of the...
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Báo cáo khoa học: "The role of Bcl-xL and nuclear factor-kB in the effect of taxol on the viability of dendritic cells" ppsx
... increased the expression of the anti-apoptotic protein Bcl-xL, and increased the mobilization of p65 subunit molecules into the DC nucleus Furthermore, we found that the inhibition of NF-κB by ... (A) The optical density of each band was divided by that of the β-actin band, and the ratio at h was set at 100% (B) Fig NF-κB involvement in the taxol-induced effects on dendritic cells (DCs) The ... future study, the knockdown study of Bcl-xL using siRNA may further confirm their role of taxol-treated DCs Although the expression of Bax was increased in TaxolDCs, the expression of Bax occurred...
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Báo cáo khoa học: " Induction of oxidative stress and lipid peroxidation in rats chronically exposed to cypermethrin through dermal application" pps
... to either the inhibition of GSH synthesis or increased utilization of GSH for detoxification of toxicant induced free radicals [33] The decrease in SOD, blood GSH and GSH-Px suggests that the ... 15 16 17 18 19 20 21 22 Exacerbated responses to oxidative stress by an Na+ load in isolated nerve terminals: the role of ATP depletion and rise of [Ca2+]i J Neurosci 2000, 20, 2094-2103 Chow CK, ... [24] Similarly, GST catalyzes the conjugation of the reduced glutathione to electrophiles and protects cellular components from oxidative damage [16] Increased activity of GST was reported in Drosophila...
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Báo cáo khoa học: " The role of marine salt and surfactants in the decline of Tyrrhenian coastal vegetation in Italy" ppt
... Finally, the comparison between the different behaviour of the species tested suggests that resistance to the action of aerosols is the result of the strength of the structures protecting the leaf, and ... illustrate the results of a number of experiments the aim of which was to measure the toxic- ity of the various components of polluted sea spray, both in isolation and in synergy MATERIALS AND METHODS ... collected both near the coast and 2-3 km inland Samples of bulk deposits were taken from pine trees (Pinus pinea L) from the section of the crown exposed to the sea and also from the opposite side...
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