... by the coactivators and corepressors it recruits to the promoters of target genes The interactions between cofactors and nuclear receptors are largely ligand-dependent In the absence of ligand, ... infarction and risk of death from cardiovascular events (Nissen and Wolski, 2007) Since then, the use of TZD compounds for treating diabetes has been under controversy Other than the synthetic ligands, ... side-effect of the drug is increased risk of bone fractures, endometrial cancer and thromboembolism (Singh and Kumar, 2005) Another member of the group, raloxifene that is used for the treatment and...
Ngày tải lên: 09/09/2015, 10:19
THE MECHANISM OF PPARN3 MEDIATED DOWN REGULATION OF SODIUM HYDROGEN EXCHANGER 1 (NHE1) GENE EPXRESSION AND ITS INHIBITION BY ESTROGEN RECEPTOR n1 2
... both the endogenous and synthetic PPARγ ligands .The difference in extent of NHE1 repression by 15d-PGJ2 and synthetic PPARγ ligands may be attributed to the different affinities of these ligands ... demonstrated that both synthetic and endogenous ligands of PPARγ were capable of inducing down-regulation of PPARγ NHE1 and mRNA Among them, the inhibitory effect was the most pronounced in cell ... doses of PPARγ ligands, and any ROS/RNS produced in the cells would convert the dye into a fluorescent molecule The intensity of fluorescence was then recorded by flow cytometry and live images of...
Ngày tải lên: 09/09/2015, 10:19
THE MECHANISM OF PPARN3 MEDIATED DOWN REGULATION OF SODIUM HYDROGEN EXCHANGER 1 (NHE1) GENE EPXRESSION AND ITS INHIBITION BY ESTROGEN RECEPTOR n1 4
... failed to rescue the down-regulation of NHE1 mRNA by active PPARγ in this cell line On the other hand, the same 3μM of 15d-PGJ2 only decreased the NHE1 mRNA to about 75% of the control in MDA-MB-231 ... activation PPARγ, and thus masking the effects of exogenous PPARγ ligands added Other than the above mentioned components that could potentially modulate the effect of PPARγ ligand on NHE1 expression, ... PPRE of PTEN and negatively interfere with PPARγ-driven transcriptional activation of PTEN (Bonofiglio et al., 2005).To further validate the different activity of estrogen receptor in regular and...
Ngày tải lên: 09/09/2015, 10:19
THE MECHANISM OF PPARN3 MEDIATED DOWN REGULATION OF SODIUM HYDROGEN EXCHANGER 1 (NHE1) GENE EPXRESSION AND ITS INHIBITION BY ESTROGEN RECEPTOR n1 6
... doses of synthetic ligands as well as natural ligand of PPARγ, and the protein expression and mRNA transcript level of NHE1 were assessed 15d-PGJ2 is a metabolite of eicosanoid prostaglandin J2, and ... attenuated in the presence of the PPARγ-ligand (Figure 28) These sites also displayed enhanced recruitment of PPARγ upon PPARγ-ligand exposure, however, the binding of both ERα and PPARγ to the sites ... high doses of fulvestrant, and observed the extent of NHE1 down-regulation by PPARγ ligand In both case, removal of ERα restored the ability of 15d-PGJ2 to repress the expression of NHE1 both...
Ngày tải lên: 09/09/2015, 10:19
THE MECHANISM OF PPARN3 MEDIATED DOWN REGULATION OF SODIUM HYDROGEN EXCHANGER 1 (NHE1) GENE EPXRESSION AND ITS INHIBITION BY ESTROGEN RECEPTOR n1 3
... level of PPARγ showed the least sensitivity to 15d-PGJ2, while 15d-PGJ2 resulted in the maximal reduction in the number of colonies formed by MDA-MB-231 cells expressing the highest level of PPARγ ... modifying the cysteine of PPARγ ligand binding region and it was effective in blocking the PPRE luciferase reporter activity induced by 15d-PGJ2 (Figure 6A) Capitalizing on the antagonistic property of ... reduction in the number as well as the size of the colonies in both breast cancer cell lines (Figure 14C) It is noteworthy that 15d-PGJ2 resulted in different extent of inhibition in the colony-froming...
Ngày tải lên: 09/09/2015, 10:19
THE MECHANISM OF PPARN3 MEDIATED DOWN REGULATION OF SODIUM HYDROGEN EXCHANGER 1 (NHE1) GENE EPXRESSION AND ITS INHIBITION BY ESTROGEN RECEPTOR n1 5
... with 3µg of reporter plasmid 3X ERE-luc and 0.3µg of renilla as described in Materials and Methods 48h after transfection, the activity of ERα was then determined using luciferase assay and the result ... (NHEnew) and PTEN (PTEN) PPRE (Figure 26B) This result lends futher support to the hypothesis that activated ERα blocks recruitment of PPARγ to the PTEN and NHE1 promoter We also screened the PPARγ and ... from the untreated control in the presence of 10nM fulvestrant and 100nM raloxifene respectively (Figure 30) This finding has provided the clinical relevance of the study, suggesting the use of...
Ngày tải lên: 09/09/2015, 10:19
Regulation of navigation and vessel-source pollution in the Northern Sea Route - Article 234 and state practice
... accompaniment of the CCGS John A 40 41 42 43 See Arts and 10 of the NSR Regulations; Arts 14 and 15 of the Economic Zone Edict; Arts and 15 of the Environmental Edict; and Art 11 of the Decree of the Council ... Arts 1(4), and 7(4) of the NSR Regulations; Art 14 of the Economic Zone Edict; and Art of the Environmental Edict Art 236 of the LOS Convention See Churchill and Lowe, The Law of the Sea, p 260 ... Navigation and pollution in the Northern Sea Route 233 might well open the way for full application of the OPA in the EEZ of the USA The USA claims that the environmental provisions of the LOS Convention...
Ngày tải lên: 01/11/2013, 09:20
Tài liệu Báo cáo khoa học: Roles of AP-2 transcription factors in the regulation of cartilage and skeletal development doc
... increase in apoptosis [73] The authors of this study ascribe the regulation of outgrowth of limb buds and patterning of the digits to the chicken AP-2 The role of AP-2a was further studied in zebrafish ... tumorigenesis and genetic diseases [47] Most analyses of the regulation of AP-2 and the interactions of the transcription factor with binding partners, as well as of the regulation of target gene ... because of the severe skeletal defects in growth and the development of face and limbs [17–19] Donner et al tried to link the expression of AP-2a in these tissues to upstream signaling pathways They...
Ngày tải lên: 16/02/2014, 09:20
Báo cáo khoa học: Nuclear actin and actin-binding proteins in the regulation of transcription and gene expression docx
... absence of ligand, AR is localized predominantly in the cytoplasm, and its hinge domain and the LBD are tethered to the C-terminal end of FLNa [86] FLNa(16–24) colocalizes with liganded AR to the ... RPABC-2 and -3, are present in all three RNA polymerases, and the solution of the crystal structure of Pol II shows that these two subunits are located close to each other at the surface of the polymerase ... transport of the AR, interacts with the AR DBD–LBD in a ligand-independent manner [77,86,87] The absence of filamin hampers androgeninduced AR transactivation In the absence of filamin, the receptor–Hsp90...
Ngày tải lên: 07/03/2014, 01:20
Báo cáo khoa học: Huntington’s disease: roles of huntingtin-interacting protein 1 (HIP-1) and its molecular partner HIPPI in the regulation of apoptosis and transcription pptx
... HD These processes may not be independent of each other Detailed descriptions of these processes are beyond the scope of this review In the present review, we specifically focus on the role of ... (45 kDa) and the activated caspase-1 (20 kDa) are shown by the arrows on the left The bar diagram (right panel) shows the average (n = 3) of integrated optical density (IOD) of the bands obtained ... elegans model of HD [45] The increased functional role of NMDAR in HD and the involvement of HIP-1 in NMDAR-mediated phosphorylation of Htt [18] further indicate the possible participation of HIP-1...
Ngày tải lên: 23/03/2014, 07:20
Báo cáo Y học: Molecular characterization of MRG19 of Saccharomyces cerevisiae Implication in the regulation of galactose and nonfermentable carbon source utilization pdf
... (Fig 10, lane and 2) and wild-type (Fig 10, lane and 4) strains bearing multiple copies of MRG19 and grown in the presence of glucose (Fig 10, lane and 3) and glycerol (Fig 10, lane and 4) It is ... disruptant at low and high cell density Both of these promoters are under the control of the Adr1p transcriptional activator [44] b-galactosidase activity was the same in wild-type and the MRG19 disruptant ... that the energy status of the cell is an important determinant of GAL gene induction [15,25–27] This suggests that the availability of metabolic energy is a rate-limiting step in the synthesis of...
Ngày tải lên: 31/03/2014, 08:20
Báo cáo khoa học: "Studies on sodium and potassium metabolism and subsequent influence on electrocardiogram in unilaterally adrenalectomized black Bengal goat (Capra hircus)" pptx
... esivda pu wollof dna ymotcelanerda gnimrofrep rof atakloK ,SFAUBW ,ygoloidaR & yregruS yranireteV fo tnemtrapeD fo idnaN S rD dna hsohG ikabeD rD ot dna seitilicaf yrassecen gnidivorp rof ,atakloK ... eht ,emulov doolb gnitamitse roF euqinhcet lacigrus dradnats gnisu arbetrev rebmul tsrif eht fo ssecorp esrevsnart eht otpu yllasrod gnidnetxe aera latsocarap ni demrofrep saw dnalg lanerda tfel ... doolB noitarepo ot detcejbus neht dna syad evitucesnoc rof detcelloc erew selpmas doolb dna sretemarap eht fo seulav lamron fo noitamitse rof desu yllaitini erew staog latnemirepxE esod eludehcs...
Ngày tải lên: 07/08/2014, 18:21
Báo cáo y học: "α Impact of VIP and cAMP on the regulation of TNF-α and IL-10 production: implications for rheumatoid arthritis" pps
... reader at 450 nm and analysed with the Deltasoft II programme (BioMetallics) The minimal sensitivity of the ELISAs were pg/ml for human TNF-α and 13–40 pg/ml for the human IL-10 and IFN-γ ELISAs ... in the presence of rolipram, an inhibitor of PDE IV activity Our results demonstrate both stimulus- and cell-type-specific responses to VIP in the presence of rolipram The addition of VIP and ... type but also to the stimulus Comparing these data with those found in the mouse, the augmentation of IL-10 and downregulation of TNF-α and IFN-γ results in a Th2 cytokine profile that is dependent...
Ngày tải lên: 09/08/2014, 01:23
Báo cáo y học: "T-cell contact-dependent regulation of CC and CXC chemokine production in monocytes through differential involvement of NFκB: implications for rheumatoid arthritis" docx
... suggesting that there is differential utilization of NFκB for the expression of CC and CXC chemokines in this system We also examined the role of NFκB in the Tck-cell contactdependent production of chemokines ... analysis, assembly and creation of the figures, and manuscript writing EA contributed to the study design, experimentation, data analysis, assembly and creation of the figures, and manuscript writing ... although the TNF gene contains at least five NFκB sites [46] Furthermore, variable factors such as the site sequence and its distance from the transcription start site, as well as the nature of the...
Ngày tải lên: 09/08/2014, 08:23
Báo cáo y học: "Composition and regulation of maternal and zygotic transcriptomes reflects species-specific reproductive mode" doc
... the results and drafted the manuscript YP participated in the study design, analysis of the results and drafting of the manuscript CPH conceived and designed the study, analyzed the results and ... on the estimated nutritional contribution provided by the mother This was estimated from the ratio of the size of an oocyte to the size of an embryo at gastrulation For each animal the extent of ... gallus and H sapiens) Thus, the only significant difference in gene architecture between mammals and the other animals examined here is in the length of the 5' IGRs of maternal and zygotic genes The...
Ngày tải lên: 09/08/2014, 20:22
Ceftriaxone-induced up-regulation of cortical and striatal GLT1 in the R6/2 model of Huntington’s disease pps
... to food and water ad libitum Both the housing and experimental use of animals followed the National Institutes of Health guidelines and were approved by the Institutional Animal Care and Use ... http://www.jbiomedsci.com/content/17/1/62 Page of Figure Effects of ceftriaxone on GLT1 expression in cerebral cortex and striatum at weeks of age Immunoblots (A, C) and quantitative analysis (B, D) of the percentage ratio of GLT1/b-tubulin ... on the last day of treatment No significant differences were found between genotype (WT and R6/2) or treatment group (ceftriaxone and saline) at weeks of age Regardless of treatment, however, there...
Ngày tải lên: 10/08/2014, 05:21
Báo cáo y học: "Regulation of apoptosis and priming of neutrophil oxidative burst by diisopropyl fluorophosphate" pps
... species Of note, DFP did not suppress oxidative burst significantly in the absence of fMLP The demonstration of the modulation of events in the evolution of apoptosis by DFP underscores the potential ... lifespan in vivo and in vitro as a consequence of the activation of a constitutive apoptotic program following their release from the bone marrow [31] Because of their intracellular stores of potent ... most of the experiments, analyzed and interpreted all the data, prepared and revised the manuscript JCP performed some of the experiments JCM obtained funding, participated in analysis and interpretation...
Ngày tải lên: 11/08/2014, 03:20
Báo cáo y học: "Regulation of apoptosis and priming of neutrophil oxidative burst by diisopropyl fluorophosphate" pptx
... species Of note, DFP did not suppress oxidative burst significantly in the absence of fMLP The demonstration of the modulation of events in the evolution of apoptosis by DFP underscores the potential ... lifespan in vivo and in vitro as a consequence of the activation of a constitutive apoptotic program following their release from the bone marrow [31] Because of their intracellular stores of potent ... most of the experiments, analyzed and interpreted all the data, prepared and revised the manuscript JCP performed some of the experiments JCM obtained funding, participated in analysis and interpretation...
Ngày tải lên: 11/08/2014, 06:22
Báo cáo y học: "Advances in understanding the regulation of apoptosis and mitosis by peroxisome-proliferator activated receptors in pre-clinical models: relevance for human health and disease" potx
... proliferation The activation of both p38 and ERK has been shown to lead to the release of TNFα and IL-6 by macrophages and other cell types [99,100] Therefore, one of the functions of MAP kinase ... Figure The different PPAR isoforms have different functions and activation profiles but share the ability to be activated by natural or synthetic ligands In addition, the activity of PPARα and PPARγ ... endogenous, most of them being fatty acids or their derivatives Among the group of synthetic ligands, fibrates are hypolipidaemic drugs used in the treatment of hyperlipidemia Most of them preferentially...
Ngày tải lên: 13/08/2014, 13:20