biochemical and biological mechanism of action
Báo cáo y học: "Anti-inflammatory effects and possible mechanism of action of lupeol acetate isolated from Himatanthus drasticus (Mart.) Plumel." ppt
... neutrophils, and is a biomarker for inflammation Furthermore, to clarify the LA mechanism of action, we studied the participation of pentoxifylline, a PDE5 and TNF-alpha inhibitor, and morphine, a mu and ... pre-treatment of mice with LA (12.5 and 25 mg/kg, i.p) significantly reduced the volume (μL) of the edema in the 2nd (31 and 41%), rd (30 and 50%) and 4th (23 and 27%) hours after administration of dextran, ... light/dark cycle and food and water supplied ad libitum The experiments were carried out according to the Guide for the Care and Use of Laboratory Animals of the U.S Department of Health and Human Services...
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Báo cáo y học: "Ultra-low microcurrent in the management of diabetes mellitus, hypertension and chronic wounds: Report of twelve cases and discussion of mechanism of action"
... mellitus High levels of free radicals and the decline of antioxidant defense mechanisms lead to damage of cellular organelles and enzymes, increased lipid peroxidation, and development of insulin resistance ... effects on diabetes, hypertension and wound healing Presumably, one of mechanisms of action is its antioxidant activity The action of EPRT is to produce electrical pressure rather than an electrical ... continued to improve and heal, and her remaining gangrenous toes eventually fell off Her blood pressure at admission was 166/53 with use of Lisinopril, which was dropped and eventually ceased...
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Tài liệu Báo cáo khoa học: Antifungal effects and mechanism of action of viscotoxin A3 docx
... generation of H2O2 in spores [9,15–18] In this work we have gained more information on the cellular targets and the mechanism of action of vis- cotoxins, by examining the interaction of VtA3 with ... [3,16] To further explore the interaction of the most cytotoxic viscotoxin isoform, VtA3, with biological membranes and obtain information on its mechanism of action, we have applied different ... monochromator, and Glan-Thompson polarizers using quartz cuvettes with continuous stirring of the suspension, bandwidths of nm for excitation and nm for emission, and excitation and emission wavelengths of...
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Báo cáo y học: "The triple combination of tenofovir, emtricitabine and efavirenz shows synergistic anti-HIV-1 activity in vitro: a mechanism of action study" pdf
... study furthers our understanding of the mechanism of action for anti-HIV drug interactions and the efficacy observed for the TDF+FTC+EFV triple combination for the treatment of HIV infection Methods ... Where and represent the individual action of drug or drug 2, while 1,2 represents the combined action of the drug combination The CI values of < 1, = 1, and > indicate synergy, additive effect, and ... and FTC-TP [30]; and (2) DEC or DEC-like complex formation by TFV-terminated DNA and HIV-1 RT in the presence of the FTC-TP or EFV, and by FTC-MP-terminated DNA and HIV-1 RT in the presence of...
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Discovery and mechanism of action study of anti viral compounds for dengue virus
... need to determine its mode of mechanism During the studies to determine the mode of mechanism of NITD770, host lipid rafts (as suggested by chemogenomic profiling data) and cholesterol were confirmed ... 68 3.2.4 Anti-viral activity of compound NITD448 73 3.3 DISCUSSION 75 A STUDY OF THE MODE OF ACTION OF NITD770, A SMALL MOLECULE INHIBITOR OF DENGUE VIRUS 79 4.1 INTRODUCTION ... activity profile of NITD770 in several assays 81 Table 4-2: Sequencing results of the genome of the NITD770 resistant viruses 91 Table 5-1: Effect of sterol inhibitors on DENV and HCV replicon...
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Mechanism of action and binding mode revealed by the crystal structures of key enzymes in plants sugar metalbolic pathway
... filtration profile of FRK Crystal of SeMet FRK 3.4 Sample diffraction pattern of SeMet FRK crystal 81 3.5 Crystal structure of HoFRK 85 3.6 Structure based sequence alignment of HoFRK 90 3.7 Stereo ... and the actual UDP ligand Superimposition of one docked-ADP ligand and the actual ADP ligand Superimposition of the catalytic regions of the open SPS-F6P complex (cyan) and the closed SPS-S6PUDP ... (magenta) Schematic diagram of the reaction between F6P and UDP-Glc in the binding cleft of SPS A schematic diagram of the reaction involving FRK and Fructose Top a) SDS-GEL image of purified FRK Bottom...
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Characterisation of the effects and mechanism of action of rapamycin and genistein on acute myeloid leukemia using high throughput techniques
... comparison of transcriptome profiles of MV411 and THP-1 75 Figure 4.3 Hierarchical clustering of transcriptomic profiles of microarray data 78 Figure 4.4 Linear regression analysis of fold-changes of ... understanding the mechanism of action of drugs (Li, et al., 2007; Frolov, et al., 2003) (Nunoda, et al., 2007) Transcriptomic techniques can survey the expression levels of thousands of genes and ... transcriptomic and proteomic modulations caused by the drug Such a study would go a long way in illustrating the mechanism of action of rapa in AML in its totality and in expanding our cognizance of the...
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The mechanism of action of sprouty2 characterization of the interaction between sprouty2 and PKCdelta
... the point of receptor-ligand binding, upstream of Ras, upstream of Raf, and at the level of or downstream of Raf (Guy et al., 2003; Kim and Bar-sagi, 2004) The study conducted by Casci and colleagues ... representation of the Ras-ERK pathway induced by RTKs 1.3.1.3 The primary structure of Ras isoforms 12 1.3.1.4 Schematic representation of the primary structure of Raf 15 1.6.2 The structure and isoforms of ... Inhibition of the Ras-ERK signaling pathway by Spry 29 1.6.6 Points of action of Spry 30 1.6.6.1 Upstream of Ras 30 1.6.6.2 Upstream of Raf 32 1.6.7 Regulation of receptor ubiquitination and endocytosis...
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Tài liệu Báo cáo khoa học: Design, structure and biological activity of b-turn peptides of CD2 protein for inhibition of T-cell adhesion ppt
... bonds between NH of Thr5 and CO of Arg2, as well as NH of Arg2 and CO of Thr5 Structure of cyclic hexapeptides – cYT peptide The NMR data of the cYT peptide were indicative of its flexible nature ... intensity of ROE cross-peaks, and were assigned as strong, medium and weak ˚ represent the family Based on ROE violation > 0.2 A and allowed values of /, w in the Ramachandran map, only one family of ... due to CD2 and CD58 interaction results in the formation of E-rosettes The ability of each of the designed CD2 peptides to inhibit CD2–CD58 interaction was evaluated by inhibition of E-rosette...
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Tài liệu Báo cáo khoa học: On the mechanism of action of the antifungal agent propionate Propionyl-CoA inhibits glucose metabolism in Aspergillus nidulans doc
... by the action of cycloheximide Cycloheximide binds to the 80S-subunit of eukaryotic ribosomes and prevents the initiation and elongation reaction of protein biosynthesis The mycelium of pregrown ... cell-free extract and water to a final volume of 980 lL The reaction was started by the addition of 20 lL of a 100 mM ATP solution (final concentration mM) and the reduction of NAD was monitored ... propionyl- Ó FEBS 2004 CoA and acetyl-CoA In the presence of both thioesters one might expect an accumulation of succinyl-CoA in the cell and a deadlock of further reactions of the citric acid cycle...
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Tài liệu Báo cáo khoa học: The structure and biological characteristics of the Spirochaeta aurantia outer membrane glycolipid LGLB pdf
... Fragments of HSQC and HMBC spectra of compound Labels illustrate assignment of the amide linkage between the amino group of Asp and the carboxyl group of GalA residue E Scheme The structures of oligosaccharides ... Amide linkage between C-6 of residue E and an amino group of the aspartic acid was identified on the basis of the HMBC correlation between H-2 of aspartic acid and C-6 of the GalA E, thus showing ... 30 min), dried and analyzed by GC-MS with the standards prepared from D-GalN and (R)- and (S)-2-BuOH The absolute configuration of L-aspartic acid was determined by chiral HPLC of the oligosaccharide...
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Tài liệu Báo cáo khoa học: Physicochemical characterization and biological activity of a glycoglycerolipid from Mycoplasma fermentans ppt
... based on the property of lysates of amebocytes of the horseshoe crab Limulus polyphemus, to form a solid gel in the presence of minute amounts of endotoxins The comparison of LPS and MfGl-II in the ... respectively [23,30], and the bands at Fig Infrared spectrum in the spectral range 1800–900 cm)1 (A) and – in the range of the negatively charged phosphate band mas (PO2 ) 1300– )1 1190 cm (B) of hydrated ... water-binding capacity of lecithin headgroups [30] Finally, MfGl-II exhibits a main band at 1245 cm)1 and further weak bands at 1220 and 1260 cm)1 Thus, the phosphate groups of this glycolipid are...
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Tài liệu Báo cáo khoa học: Biochemical and molecular characterization of hazelnut (Corylus avellana) seed lipoxygenases pdf
... reaction products of the hazelnut LOX were compared with the reaction products of soybean LOX type I and authentic standards of 9- and 13-HODE As shown in Fig 4, 9-HODE is the main product of the hazelnut ... part of the world production adsorbed by the pastry industry Hazelnut seeds contain reasonable levels of linoleic and linolenic acid (about 10 and 0.2%, respectively, of the total fatty acids) and ... role of these LOXs is largely unclear Because of their role in the generation of pleasant or unpleasant flavours and their involvement in co-oxidation reactions leading to the bleaching of carotenoids...
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Tài liệu Báo cáo Y học: Tissue factor pathway inhibitor A possible mechanism of action doc
... Scheme shows the reactions of the two-step mechanism of action of TFPI It is shown in the Appendix that Scheme is equivalent to Scheme I of [8] within the area of the applicability of the latter In ... values d and found the values of the hypothetical reactions separately The model of the inhibitory action of the Xa–TFPI complex on the enzyme–substrate complex (model 3) The reaction of X–VIIa–TF ... significant amount of the Xa–VIIa–TF complex The mathematical model has shown that the analysis of the inhibition curves of the Scheme A development of Scheme by addition of the reaction of the enzyme–substrate...
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Báo cáo khoa học: Assembly and molecular mode of action of the Helicobacter pylori Cag type IV secretion apparatus doc
... in the molecular mechanisms of effector protein secretion This minireview describes the composition of the cagPAI and the properties of both conserved and unique components of the Cag-T4SS, together ... potential implications for the current understanding of its mode of action The cagPAI and the Cag type IV secretion apparatus Gene arrangement and variants of the cagPAI The cagPAI, which was originally ... an inversion of cagQ, a duplication of cagA and cagB associated with cagA degeneration, and a more complex rearrangement comprising all cag genes except cagA and a second inversion of several flanking...
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Báo cáo khóa học: Biochemical and molecular characterization of a laccase from the edible straw mushroom, Volvariella volvacea docx
... in a volume of 25 lL consisting of PCR buffer, 0.2 mM each dNTP, 2.5 mM MgCl2, 0.2 lM each primer, and 0.5 U of Taq polymerase One microlitre of RT reaction was used in each PCR reaction As a ... of 3.0 corresponding to a specific activity of 13.5 UÆmg protein)1 Corresponding pH optima and specific activities for syringaldazine and 2,6-DMP were pH 5.6 and 3.4 UÆmg protein)1 and pH 4.6 and ... apparent Km value of 0.03 mM and a Vmax of 16.4ÆU mg protein)1 Corresponding values for syringaldazine and 2,6-DMP under optimal conditions were 0.01 mM and 4.9 UÆmg protein)1, and 0.57 mM and 5.6 UÆmg...
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Báo cáo khoa học: Structural and biological effects of a b2- or b3-amino acid insertion in a peptide Application to molecular recognition of substance P by the neurokinin-1 receptor ppt
... methyl of Aib, on the opposite side of the pyrrolidine ring of Pro A parallel can be drawn regarding the differences in biological activities between [Ala9]SP and [Gly9]SP on the one hand, and [b2-HAla9]SP ... grid searches of b-amino acids were initially carried out at intervals of 30° for each torsion angle /, h, and w and were subsequently refined by varying /, w angles in intervals of 10° and setting ... shifts and random coil values, are commonly used to detect secondary structures in peptides and proteins [38] They are reported in Fig Stronger upfield shifts of Ha (Fig 3A) and downfield shifts of...
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The Situation of Elderly People in Turkey and National Plan of Action on Ageing potx
... Situation of Elderly People in Turkey and National Plan of Action on Ageing The Situation of Elderly People in Turkey and National Plan of Action on Ageing CONTENTS … I INDEX OF TABLES ... analysis and the plan of action The first part of the report includes Turkey’s profile and demographic structure, analyses on the status and development of the elderly population, services offered ... control, meeting of their needs, assistance in the prevention and resolving of their problems and improvement and elevation of their life standards.” Paragraph (f) of Article of the Law includes...
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Báo cáo khoa học: Construction and biological activity of a full-length molecular clone of human Torque teno virus (TTV) genotype 6 pptx
... [19], bone marrow [10] and several other organs [20] However, the main host cells and the target organs of this virus are still undefined The study of the biological functions of TTV is particularly ... in virus–cell interactions, and to find permissive cell lines for further molecular and cell biological studies of this peculiar human virus For this purpose, we have cloned and sequenced the full-length ... were the same regardless of the DNA isolation method (total cellular; Hirt extraction) and of the detection probes (DIG- and 32P-labelled probe) (data shown for 293 and 293T cells in Fig 3A,C)...
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