two modulators in fight for the regulation of gnrh activity
Báo cáo y học: "γ A novel mechanism for the regulation of IFN-γ inducible protein-10 expression in rheumatoid arthritis" ppsx
... expressed in the inflamed synovium of RA, and appears to play an important role in the recruitment of Th1-type cells into the joint Thus, the aim of the present study was to examine the regulatory ... FLSs, indicating that the major cellular sources of IP-10 are probably either monocytes or PMNs during coculture Involvement of integrin–ICAM-1 ligand interactions in the upregulation of IP-10 ... FLSs from the leukocytes, but was permeable to soluble factors The pathway governing IP-10 expression was further examined by determining the role of adhesion molecules in the regulation of IP-10...
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Báo cáo Y học: Identification of mammalian-type transglutaminase in Physarum polycephalum Evidence from the cDNA sequence and involvement of GTP in the regulation of transamidating activity potx
... form Initially, determination of the amino-terminal amino acid sequence of purified protein was attempted, but no information was obtained, probably due to the protein modification Therefore, the ... terminus that is required for binding to the plasma membrane, thereby being involved in the formation of the corneum [47] Additional amino-terminal residues of TGase include the sequences that are ... with the PLC-interacting region has been found Whether the hydrolysing activity of GTP of PpTGase is related to certain cellular signalling in the slime mold remains to be determined As the production...
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Báo cáo hóa học: " ICP0 antagonizes Stat 1-dependent repression of herpes simplex virus: implications for the regulation of viral latency" potx
... repression of HSV-1 [5,6] ICP34.5 antagonizes protein kinase R (PKR)-induced shutoff of viral protein translation by inducing the dephosphorylation of the translation initiation factor, eIF-2α [7,8] The ... to induce the shutoff of viral L protein synthesis [11,18] The proposed Checkpoint Model represents an attempt to explain how the genes in the HSV-1 latency-associated locus may influence the ... driving the expression of the green-fluorescent protein (GFP) b The ICP0- null mutant n212 contains a 14 bp insertion, ctagactagtctag, in codon 212 of the ICP0 gene of HSV-1 strain KOS, which inserts...
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Báo cáo khoa học: " Comparison of two sap flow methods for the estimation of tree transpiration" ppt
... in figure Respective functioning of each method was not deteriorated by the other The relationship obtained with the comparison of the two methods over the whole period (n 589) is presented in ... transpiration in the morning This study confirmed the possibility of experiment one or the other method in accordance with the objectives, and the equipment The major problem is still the choice of samples ... required for an accurate estimation of transpiration The combination of the two methods seems possible in the same experiment The heat balance for the small trunks, and transpiration calculation for...
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Báo cáo y học: "Validation of a microwave radar system for the monitoring of locomotor activity in mic pptx
... time of the recordings of each device, we considered the recordings as consisting of three 30- minute parts For the analysis of variance of the data, we considered the three parts of the recording ... and we determined if the radar recorded them when the mouse performed them: • locomotion (walking, running, jumping); • climbing (hanging or climbing on the bars of the cage, with two or four ... Screening of the metronome and position of the apparatus and acquisition window • stretching; • scratching the fur with the front paws LED was connected to the radar and placed in the field of the...
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báo cáo khoa học: "The grapevine guard cell-related VvMYB60 transcription factor is involved in the regulation of stomatal activity and is differentially expressed in response to ABA and osmotic stress" ppt
... primordia in (A), showing staining at the base of trichomes (C) Detail of an emerging later root (D) 15-day-old pVvMYB60:GUS seedling (E) Magnification of leaf primordia in (D), showing staining of ... conditions, the lines expressing the VvMYB60 gene displayed a rate of water loss indistinguishable from the one observed in the wildtype, thus demonstrating complete rescue of the stomatal defects of the ... 2C) Interestingly, at this stage, the onset of ripening and the accumulation of sugars are correlated to increasing levels of ABA in the berry [30], suggesting a possible negative effect of the...
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Báo cáo y học: " Combined forced oscillation and forced expiration measurements in mice for the assessment of airway hyperresponsiveness" pot
... that the animals undergo anaesthesia, tracheotomy or intubation, and mechanical ventilation The combination of the two techniques in a single set-up allowed us to study the performance of both ... specifically the constant-phase model [13], can provide valuable information pertaining to the heterogeneity of the respiratory response and whether it is dominated by resistance of the conducting airways, ... fitting the equation of motion of the linear single compartment model of lung mechanics to the SFOT data using multiple linear regressions Respiratory system input impedance was calculated from the...
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IDENTIFICATION OF A MINIMAL CIS-ELEMENT AND COGNATE TRANS-FACTORS REQUIRED FOR THE REGULATION OF RAC2 GENE EXPRESSION DURING K562 CELL DIFFERENTIATION
... kinase and helicase activity The kinase activity of this factor is required for the phosphorylation of the C-terminus domain (CTD) of Pol II that consists of repeats of the amino acid sequence ... by the presence of one invariant protein motif, the SET domain, which has the potential to methylate lysine in the N-terminal tail of histones There are about ten different SET-domain containing ... compaction of chromatin by binding to the linker DNA Thus a nucleosome without the linker histone H1 resembles beads on a string of DNA The tight interaction of DNA with histone proteins protects them...
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Study of the associated proteins of STAT3 and characterization of their functions roles of GRIM 19 and PIN1 in the regulation of STAT3 activity
... diagram of the Stat3β homodimer–DNA complex The N-terminal 4-helix bundle is shown in blue, the β-barrel domain in red, the connector domain in green, and the SH2 domain and phosphotyrosine-containing ... JAK-STAT pathway in cytokine signaling The initial step of cytokine signaling involves the engagement of cytokines to their specific receptors Currently two classes of cytokine receptors have ... family cytokines, growth hormone and 23 Chapter 1: Introduction interferons, basically through binding to the tyrosine kinase domain of JAK and therefore reducing the JAK kinase activity However,...
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Tài liệu Báo cáo khoa học: Characterization of human deoxyribonuclease I gene (DNASE1) promoters reveals the utilization of two transcription-starting exons and the involvement of Sp1 in its transcriptional regulation ppt
... alternative promoters in DNASE1 results in no generation of protein isoforms The 5¢-UTR of eukaryotic mRNA in uences the initiation step of protein synthesis and thereby in part determines the translational ... expression, a mutated binding site was introduced into the )197H construct, resulting in the loss of 80% of luciferase activity (Fig 4B) The data show that the Sp1 site is important for the DNASE1 distal ... on the regulation of vertebrate DNASE1 expression in vivo or in vitro, including characterization of the promoter region of the gene and the associated transcriptional factors Therefore, delineation...
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THE ATTRACTIONS OF RISK-BASED REGULATION: ACCOUNTING FOR THE EMERGENCE OF RISK IDEAS IN REGULATION docx
... pressures they put on regulators in terms of how they conducted their own operations, and second for the pressures they put on the regulators in their dealings with business In terms of their own ... both of which gained currency in Europe and the US during the late 1980s/ 1990s These techniques are part of the changes associated with the NPM and they form the basis of much risk-based regulation ... (part of HSE) in the 1990s This was reinforced by management consultants hired by the industry, in the wake of accidents and the privatisation of British Railways, the nationalised industry then...
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AN INCREASING ROLE FOR COMPETITION IN THE REGULATION OF BANKS doc
... 1980s In the case of S&Ls the insurance premium was set by statute in 1950 at 1/12 of 1% of the assessable deposits and was the same for all insured institutions regardless of the riskiness of their ... be influenced by the specific interests of the industry they regulate That is, it becomes increasingly harder for the regulatory body to distinguish the public interest from the interest of the ... as the development of offshore financial centers and off-balance-sheet methods of financing); • the diminishing effectiveness of traditional controls due to financial innovation (including the...
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Báo cáo hóa học: " Research Article New Trace Bounds for the Product of Two Matrices and Their Applications in the Algebraic Riccati Equation" potx
... estimate of the trace bounds when any matrix in the product is nonsymmetric in theory and practice There are some results in 13–15 In this paper, we propose new trace bounds for the product of two ... Journal of Inequalities and Applications Therefore, considering the application of the trace bounds, many scholars pay much attention to estimate the trace bounds for the product of two matrices ... 3.1 In this section, we obtain the application in the algebraic Riccati equation of our results including 3.1 Some of our results and 3.1 cannot contain each other Theorem 3.1 If 1/p and K is the...
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Báo cáo toán học: "A LOWER BOUND FOR THE NUMBER OF EDGES IN A GRAPH CONTAINING NO TWO CYCLES OF THE SAME LENGTH" pptx
... (G) denote the number of edges In this paper, we construct a graph G having no two cycles with the same length which leads to the following result Theorem Let t = 27720r + 169 (r ≥ 1), then f (n) ... 32t − 17t+1 Then f (n) ≥ n + 32t − 1, for n ≥ nt This completes the proof of the theorem From the above theorem, we have f (n) − n 2562 √ ≥ 2+ , n 6911 √ 487 which is better than the previous ... [5] Chunhui Lai, On the size of graphs with all cycle having distinct length, Discrete Math 122(1993) 363-364 [6] Chunhui Lai, The edges in a graph in which no two cycles have the same length, J...
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Báo cáo y học: "Transcriptional regulation of collagenase (MMP-1, MMP-13) genes in arthritis: integration of complex signaling pathways for the recruitment of gene-specific transcription factor" ppt
... number of these sites and their location within a given promoter vary among the MMP family members, and these variations influence the regulation of these genes [37] The interaction of AP-1 with other ... transcriptional induction of MMPs One group of proteins that mediate some of these phosphorylation events is the mitogen-activated protein kinase (MAPK) group [19] The MAPK family of serine/threonine kinases ... and OA, making them prime targets for arthritis therapies Since the genes for both of these enzymes are transcriptionally activated by inflammatory cytokines, an understanding of the molecular...
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Báo cáo y học: " Tumour necrosis factor-α stimulates dehydroepiandrosterone metabolism in human fibroblast-like synoviocytes: a role for nuclear factor-κB and activator protein-1 in the regulation of expression of cytochrome p450 enzyme 7b" doc
... Cyp7b activity We further investigated a putative role for MAPKs in the TNFα-induced increase in Cyp7b activity by using the MEK1 inhibitor PD98059 and the p38 inhibitor SB203580 The p38 inhibitor ... To investigate whether the effect of SN50 interfered at the level of Cyp7b activity or expression, we also analyzed the influence of SN50 on the TNF-α-induced increase in Cyp7b Available online ... previously [10] Therefore, it is unlikely that STAT1 is involved in Cyp7b activity regulation There is evidence that the dose of SN50 determines the specificity of the inhibitor [16] Therefore, it is...
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Báo cáo y học: "Regulation of catabolic gene expression in normal and degenerate human intervertebral disc cells: implications for the pathogenesis of intervertebral disc degeneration" ppt
... that the lack of TNF-R1 does not affect the incidence or severity of collagen-induced arthritis in the joints [27] Repeated injections of TNF-α into the joints of TNF-R1 knockout mice enhanced the ... the changes identified in the degeneration of the IVD, which include an upregulation in type I collagen protein in the NP region [20] The results of this study show that TNF-α downregulates the ... Stimulation of NP cells by the addition of TNF-α resulted in the upregulation of TNF-α and TNF-R2 in both normal and degenerate cells, although the levels of TNF-R1 remained unchanged This finding is in...
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báo cáo khoa học: "Structure and expression of the maize (Zea mays L.) SUN-domain protein gene family: evidence for the existence of two divergent classes of SUN proteins in plants" pot
... ancient divergence of these two classes These data also suggest that the PM3 proteins originated early in the life of the plant kingdom, predating the origin of flowering plants The second, four ... proteins reside or function in the NE remains to be determined In addition to their difference in size and SUN domain locations, these protein subfamilies are distinct in other interesting ways ... domains, a single SUNdomain that is not at the C-terminus but rather in the middle of the protein, and a highly-conserved domain of unknown function that we refer to as the PM3associated domain...
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Báo cáo y học: "Science review: Redox and oxygen-sensitive transcription factors in the regulation of oxidant-mediated lung injury: κ role for nuclear factor-κ" pdf
... to increasing intracellular stores of GSSG, a potent inhibitor of NF-κB transcription factor DNA binding The pathway leading to the formation of GSH by the action of γ-glutamylcysteine synthetase ... is interesting to observe that IL-11 did not affect the BALF content of the CXC chemokines, of the macrophage inflammatory protein-2 and of the cytokine-inducible neutrophil chemoattractant The ... activation of NF-κB may contribute to the increased expression of multiple cytokines in the lung in the setting of established ARDS [10] Antioxidant treatment in oxidant-induced lung injury has...
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Báo cáo y học: "Science review: Redox and oxygen-sensitive transcription factors in the regulation of oxidant-mediated lung injury: α role for hypoxia-inducible factor-1α" pptx
... therefore be a promising therapy to reduce injury and to improve lung function play a central role in initiating the innate immune system and in activating NF-κB Anti-inflammatory cytokines have the ... Hellwig-Bürgel et al investigated the effects of these cytokines on the activation of the HIF-1 DNA-binding complex and the amount of HIF-1α protein in human hepatoma cells in culture [47] Under normoxic ... potential mediator of increased pulmonary vascular permeability in this model of acute lung injury Further elaborating on the mechanisms involving HIF-1 in regulating the inflammatory response,...
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