oxidation of ldl cholesterol
HDL Cholesterol, Very Low Levels of LDL Cholesterol, and Cardiovascular Events docx
Ngày tải lên :
27/06/2014, 00:20
... Furthermore, the magnitude of the reduction in events is a function of the extent of LDL cholesterol lowering, with each decrease of 40 mg per deciliter (1.0 mmol per liter) in LDL cholesterol corresponding ... a n d j o u r na l LDL Cholesterol Level 5-Yr Risk of Major Cardiovascular Events (%) 12 70–100 mg/dl >100 mg/dl 10 Ratios of LDL Cholesterol and Total Cholesterol to HDL Cholesterol Q1 (
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Tài liệu Báo cáo khoa học: Separation of a cholesterol-enriched microdomain involved in T-cell signal transduction doc
Ngày tải lên :
20/02/2014, 03:20
... per cent of the cholesterol in the raft fractions was retrieved in the BCh-bound membrane fraction (bead-bound fraction), which corresponds to 24% of total cellular cholesterol The cholesterol ... ratios of 10 : and : 2, respectively Lipid rafts are defined as lateral clusters of cholesterol and sphingolipids; however, the biochemical definition of lipid rafts remains obscure Regardless of detergent ... any of the following origins: PM-derived cholesterol- poor membranes, intracellular cholesterol- poor membranes or intracellular cholesterol- rich membranes Because the BCh-unbound membranes are cholesterol- poor...
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Tài liệu Báo cáo Y học: Oxidation of phenols by laccase and laccase-mediator systems doc
Ngày tải lên :
21/02/2014, 01:21
... the oxidation reaction Substrate consumption Table summarizes the results of our laccase oxidations of substrates 1–5, and the effect of the cosolvent and of the mediators on the amount of substrate ... in view of its phenolic nature With phenols and 3, however, the extent of substrate oxidation is much lower; the use of the cosolvent makes the consumption of quantitative, whereas that of remains ... the selective oxidation of the hydroxymethyl groups of the substrate to aldehydes Both with laccase alone and with the laccase/HPI system, a limited enhancement of the extent of oxidation was...
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Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx
Ngày tải lên :
05/03/2014, 11:21
... Figure of PS-1 (1% Pt/ SBA-15) sample displays typical peaks of Si and Pt and the result from the quantitative estimation of peak areas gives 0,98% weight content of platinum This means that most of ... in the oxidation reaction of glucose The conversion of the reaction reached 87.67% when using HNO3 as oxidizing agent, but the selectivity of D-gluconic product is quite low The high oxidation ... channels of SBA-15 mesoporous material when the content of platinum increase to 3% in weight Figure EDX diagram of PS-1 d N2 adsorption-desorption method Figure Transmission electron micrographs of...
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Báo cáo khoa học: Radical-induced oxidation of metformin pptx
Ngày tải lên :
07/03/2014, 16:20
... detectable effect of H2O2 as an initiator of metformin oxidation in the absence of irradiation However, under irradiation, there was a noticeable effect of the concentration of H2O2 (0.05, 0.5 ... the quantification of the oxidation products The observed progressive inhibition of metformin oxidation, in the presence of added hydrogen peroxide, would come from the reaction of ÆOH radicals ... LÆmol)1Æs)1 at pH [23]) Action of ÆOH radicals In order to study the action of ÆOH radicals on the initiation of metformin oxidation in nonaerated medium, different solutions of metformin (4–500 lmolÆL)1)...
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Báo cáo khoa học: Alpha-oxidation of 3-methyl-substituted fatty acids and its thiamine dependence pptx
Ngày tải lên :
08/03/2014, 02:20
... is a mixture of these two Table Properties of the enzymatic steps/enzymes of the a -oxidation pathway The table gives an overview of the present knowledge of some of the properties of the enzymes ... stereochemistry of the a -oxidation pathway is presented in Fig The lack of stereospecificity of the a -oxidation pathway is in contrast with the stereospecificity of both the peroxisomal and mitochondrial b -oxidation ... configuration of the 3-methyl-branch does not influence the rate of a -oxidation, but determines the orientation of the 2-hydroxylation This explains the formation of only the (2S,3R) and (2R,3S) isomers of...
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Báo cáo khoa học: Protective effect of dietary curcumin and capsaicin on induced oxidation of low-density lipoprotein, iron-induced hepatotoxicity and carrageenan-induced inflammation in experimental rats ppt
Ngày tải lên :
08/03/2014, 08:20
... formation at and 12 h of LDL oxidation, respectively, was seen in this case The extent of copper-induced oxidation of LDL in vitro was also significantly less in the case of LDL FEBS Journal 273 ... and 21% at and 12 h of LDL oxidation, respectively, in this case A decrease in TBARS formation of 37 and 24% was seen at and 12 h of copper-induced LDL oxidation in the case of LDL isolated from ... expressed as nanomoles of melondialdehyde ⁄ mg protein of LDL In vivo induction of LDL oxidation Agarose gel electrophoresis For the in vivo LDL oxidation study, at the end of feeding period, rats...
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Báo cáo khoa học: Enzymatic oxidation of NADP+ to its 4-oxo derivative is a side-reaction displayed only by the adrenodoxin reductase type of ferredoxin-NADP+ reductases potx
Ngày tải lên :
16/03/2014, 11:20
... spectroscopic properties of the product of NADP+ oxidation Fig Hypothetical mechanism of the reductive half-reaction of the catalytic cycle of FprA in the oxidation of NADP+ to yield NADPO The ... evidence of the ability of FprA to catalyze the production of NADPO In the present article, we provide the first quantitative description of this reaction, along with a detailed analysis of the ... the formation of the species modified in position of the nicotinamide ring because of the poor reactivity of this position towards nucleophilic attack Indeed, the positive charge of the pyridinium...
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Báo cáo khoa học: Microperoxidase 8 catalysed nitrogen oxides formation from oxidation of N-hydroxyguanidines by hydrogen peroxide ppt
Ngày tải lên :
17/03/2014, 09:20
... that MP8 selectively catalyses the oxidation of to the corresponding cyanamide with formation of only minor amounts of urea Reaction of and NOHA in the presence of MP8 and H2O2 leads to NO formation ... degradation of MP8 had occured under those oxidative conditions (data not shown) The effect of changing the pH of the reaction medium on the efciency and selectivity of the reaction of in the presence of ... formation of the CPTI spectrum This disappearance of the EPR signal of CPTI could result from further oxidation of CPTI to EPR-silent products under those conditions or from the coupling of CPTI(O)...
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Báo cáo Y học: Oxidation of propionate to pyruvate in Escherichia coli Involvement of methylcitrate dehydratase and aconitase pot
Ngày tải lên :
17/03/2014, 10:20
... in vitro reconstitution of the oxidation of propionyl-CoA to pyruvate by the use of purified PrpC, PrpD, AcnB and PrpB from E coli PrpD and AcnB involved in the conversion of methylcitrate into ... lanes and 7) with an apparent molecular mass of 94 kDa and a turnover number of s)1 Comparison of the forward reaction (hydration of Determination of 2-methyl-cis-aconitate by anhydride formation ... used for comparison of the specificity of transcription during growth on acetate and propionate, respectively Furthermore, this gene was of interest because of the ability of the Acs to activate...
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Electrochemical Oxidation of Cysteine at a Film Gold Modified Carbon Fiber Microelectrode Its Application in a Flow—Through Voltammetric Sensor
Ngày tải lên :
21/03/2014, 12:18
... (A) Magnitude of the peak current, Ip, for cysteine oxidation as a function of square root of scan rate and (B) peak potentials Ep of cysteine oxidation as a function of logarithm of scan rates ... a bundle of carbon fiber is composed of single fiber; (b) a bundle of carbon fiber is composed of 16 single fiber; (c) a bundle of carbon fiber is composed of 32 single fiber Sensors 2012, 12 ... had diameters of 3.9 μm, 2.5 μm, 0.71 μm and 2.7 μm, respectively The concentration 4.0 mM of HAuCl4 and 480 s of deposition time were used for coating, because the peak height of cysteine was...
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Báo cáo khoa học: Reductive nitrosylation and peroxynitrite-mediated oxidation of heme–hemopexin doc
Ngày tải lên :
23/03/2014, 10:20
... mechanism of the peroxynitrite-mediated oxidation of myoglobin in the absence and presence of carbon dioxide Chem Res Toxicol 16, 390–402 Boccini F & Herold S (2004) Mechanistic studies of the oxidation ... Hb(III) [31] (i.e k > h, Scheme 1) 554 Effect of CO2 on peroxynitrite-mediated oxidation of HPX–heme(II)–NO In the absence and presence of CO2, mixing of the HPX–heme(II)–NO and peroxynitrite solutions ... Ascenzi et al Pseudo-enzymatic properties of heme–hemopexin Fig Kinetics of peroxynitrite-mediated oxidation of HPX–heme(II)–NO in the absence and presence of CO2, at pH 7.0 and 10.0 °C (A) Steady-state...
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Báo cáo khoa học: First evidence of catalytic mediation by phenolic compounds in the laccase-induced oxidation of lignin models ppt
Ngày tải lên :
23/03/2014, 21:20
... kinetics of oxidation of phenol red by Poliporus pinsitus laccase in the absence of any mediator, and then evaluated the ability of phenol red to act as a laccase mediator in the oxidation of a hindered ... were used as Fig Degree of conversion of phenol red (thick line) and 2,4,6-trichlorophenol (thin line) as a function of time The kinetics of laccasecatalyzed oxidation of phenol red and 2,4,6-dichlorophenol ... The radical mechanism of oxidation of a nonphenolic substrate by a laccase->N–OH mediator system [22], it has time to follow an analogous H-abstraction route of oxidation of the nonphenolic substrate...
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Báo cáo khoa học: Expression and purification of orphan cytochrome P450 4X1 and oxidation of anandamide pdf
Ngày tải lên :
30/03/2014, 04:20
... reactions were terminated by addition of two volumes of ethyl acetate and analyzed as described above Assay of cholesterol oxidation Assays of cholesterol oxidation were performed using a general ... liver products, at rates of and 17 pmolÆmin)1Æmg)1 protein None of the products were identified In the study of Snider et al [11], the rates of production of anandamide oxidation products by human ... Arachidonic acid formed trace amounts of 14,15- and 8,9-EETs but only in the presence of cytochrome b5 as an auxiliary factor The rates of oxidation of a number of other arachidonic acid derivatives,...
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Báo cáo khoa học: Effects of sphingomyelin, cholesterol and zinc ions on the binding, insertion and aggregation of the amyloid Ab1)40 peptide in solid-supported lipid bilayers ppt
Ngày tải lên :
30/03/2014, 11:20
... association with bilayers composed of single lipids, of binary lipid mixtures, or of a ternary mixture composed of dioleoylphosphatidylcholine (DOPC) ⁄ sphingomyelin (SM) ⁄ cholesterol (1 : : mole ratio), ... that during microdomain formation a small amount of SM and cholesterol is mixed into the DOPC portion of the bilayer, and a small amount of DOPC and cholesterol is mixed into the SM-enriched microdomain ... accomplished by evaluation of the optical parameters for the lipid layer before and after binding of peptide and subsequent aggregation, and of the layer composed of peptide (or a portion of the peptide)...
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anaerobic oxidation of methane 2002 science
Ngày tải lên :
12/06/2014, 11:18
... structure of about m height The surface of the structure consists of grayblack microbial mat; the interior of the massive mat is pink The greenish-gray inner part of the structure consists of porous ... formation of carbonate structures Epifluorescence microscopy of sections of microbial mat revealed dense aggregations of archaea and bacteria (Fig 2) (see SOM) The mats are penetrated by systems of ... occurrence of microfossils (3.5 Ga ago) (22) and the first isotopic traces of bioorganic carbon cycling (3.8 Ga ago) (23) Hence, AOM may have represented an important link in the biological cycling of...
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Báo cáo hóa học: " Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst" pdf
Ngày tải lên :
20/06/2014, 23:20
... investigate the effect of Mn precursors on the catalytic ozone oxidation of benzene Experimental details Synthesis of MnOx/Al-SBA-16 catalysts The detailed procedure for the synthesis of mesoporous silica ... activity of Al-SBA-16-MA15% was higher than that of Al-SBA-16-MN15% It was shown that the type of precursors used for Mn impregnation influenced the dispersion, oxidation state, and oxygen mobility of ... mobility, leading to higher activity for the oxidation reaction In addition, as mentioned above, the order of catalytic activity for the VOC oxidation of Mn oxides is Mn O > Mn O > MnO [13] In this...
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Báo cáo hóa học: " Effective surface oxidation of polymer replica molds for nanoimprint lithography" ppt
Ngày tải lên :
20/06/2014, 23:20
... two different oxidation methods, photooxidation and basic oxidative treatment, for comparison Photooxidation was performed using UV radiation at a peak wavelength of 254 nm and power of 15 mW/cm ... 3c), and after 30 of treatment (Figure 3d), the nanostructures completely disappeared, as was observed after of photooxidation treatment (Figure 2d) The extent of the surface oxidation and hydroxyl ... hydrogen peroxide for the generation of hydroxyl groups on NOA63 polymer surfaces and compared the effectiveness of this method with that of previously reported photooxidation approaches Experimental...
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Báo cáo hóa học: " Facile template-free synthesis of pine needle-like Pd micro/nano-leaves and their associated electro-catalytic activities toward oxidation of formic acid" pot
Ngày tải lên :
21/06/2014, 03:20
... performance of as-prepared catalysts for the formic acid electro -oxidation The inset of Figure shows the CV of formic acid oxidation on the Pd electrode, which was deposited for Figure XRD patterns of ... current density of formic acid oxidation This demonstrates that the electrocatalytic stability of the Pd micro/nano-leaves for formic acid oxidation is much higher than that of the Pd nanoparticles, ... People’s Republic of China 2Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi, 830011, People’s Republic of China 3Jiangxi Key Laboratory of Organic Chemistry,...
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Báo cáo hóa học: " Properties of silicon dioxide layers with embedded metal nanocrystals produced by oxidation of Si:Me mixture" doc
Ngày tải lên :
21/06/2014, 05:20
... during the oxidation of the Si:Me layer After the oxidation is completed, the sample is still kept at elevated temperature facilitating the coalescence of Me NCs The effect of the oxidation temperature ... http://www.nanoscalereslett.com/content/6/1/148 20 Page of SiPt SiAu 0 oxidation h, 640 oxidation h, 640 18 28 26 16 CSiO , pF oxidation h, 640 C oxidation h, 640 C 30 24 22 14 20 18 12 16 10 14 12 ... evaporation nor diffusion of Au or Pt in SiO2 layer takes place during thermal oxidation in dry O On the contrary, oxidation at higher temperatures results in a strong loss (about 30%) of Me from the SiO2...
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