special topic fatty acids
FATTY ACID COMPOSITION INCLUDING TRANS FATTY ACIDS CONTENT OF SELECTED VIETNAMESE INSTANT NOODLES
... monounsaturated fatty acids * TFA: trans fatty acids * tc: traceal 818 Fatty acid composition including trans fatty acids content of selected Vietnamese instant noodles Trans fatty acids were also ... total fatty acid methyl ester Values are means ± SD for three samples of triplicates * Fatty acids less than 0.1%: C15:0, C17:0, C21:1 * SFA: saturated fatty acids * PUFA: polyunsaturated fatty acids ... fatty acids * TFA: trans fatty acid* MUFA: monounsaturated fatty acids negligible proportions of trans fatty acids, bothwith monounsaturated and polyunsaturated fatty acids These results also...
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Tài liệu VAI TRÒ CUẢ OMEGA-3 FATTY ACIDS TRONG VIỆC ĐIỀU TRỊ VÀ PHÒNG NGỪA BỆNH doc
... n-3 fatty acids đưa tới kết trái ngược, phần lớn cách nghiên cứu không rõ rệt (nhận xét thay can thiệp) Sự thay đổi mẫu số, tổng số khác biệt kéo dài cung cấp n-3 fatty acids Omega-3 fatty acids ... biển) EPA DHA, so sánh n-6 vớI n-3 fatty acids Trong tương lai nhiều nghiên cứu cần thiết để đánh giá tác dụng Omega-3 fatty acids sức khỏe tâm thần LC n-3 fatty acids chứng minh làm giảm nguy dùng ... bổ túc n-3 fatty acids không đủ, 750mg/mgày đủ 1000mg/ngày LC n-3 fatty acids đủ để giảm nguy bệnh tâm trí Hillben nói tới tầm quan trọng cuả quân bình tỷ lệ n-6/n-3 hai nhóm fatty acids cạnh...
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Tài liệu Báo cáo khoa học: Suppressed catalytic efficiency of plasmin in the presence of long-chain fatty acids Identification of kinetic parameters from continuous enzymatic assay with Monte Carlo simulation ppt
... three fatty acids, expanding on our recent report [3] in which oleic acid was used to model the modulatory effects on the fibrinolytic system Fatty acids as plasmin inhibitors of the fatty acids, ... respective fatty acid name indicate its concentration (in lM) The ‘0 ’ indicates the set of parameters in the absence of fatty acids Shaded ellipses combine parameters belonging to the same type of fatty ... 2008 The Authors Journal compilation ª 2008 FEBS A Tanka-Salamon et al Fatty acids as plasmin inhibitors All three fatty acids examined caused a 10–20-fold increase in the Km of plasmin: oleate...
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Tài liệu Báo cáo khoa học: Modulation of cyclin D1 and early growth response factor-1 gene expression in interleukin-1b-treated rat smooth muscle cells by n-6 and n-3 polyunsaturated fatty acids pdf
... Biol Chem 278, 9986–9992 Nunez, E.A (1997) Fatty acids involved in signal cross-talk between cell membrane and nucleus Prostaglandins Leukot Essent Fatty Acids 57, 429–434 Brash, A.R (2001) Arachidonic ... retinoblastoma protein (Rb) phosphorylation after supplementation with n-3 and n-6 polyunsaturated fatty acids (PUFAs) (A,B) Effects of n-3 and n-6 PUFAs in cells stimulated by interleukin-b (IL-1b) ... Modulation of cyclin D1 promoter activity by supplementation with n-3 and n-6 polyunsaturated fatty acids (PUFAs) (A) Serum-starved smooth muscle cells (SMC) were transiently transfected with the...
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Báo cáo khoa học: Arabidopsis thaliana CYP77A4 is the first cytochrome P450 able to catalyze the epoxidation of free fatty acids in plants potx
... epoxy fatty acid-forming enzyme by peroxisome proliferator-activated receptors points to a role in fatty acid catabolism [8] After x-hydroxylation, fatty acids can be further oxidized to diacids, ... 11 of physiological C18 fatty acids, closely located near the double bonds of oleic, linoleic and a-linolenic acids We therefore tested these different unsaturated fatty acids as potential substrates ... metabolizes free fatty acids, whereas CYP726A1 metabolizes fatty acids incorporated into phosphatidylcholine [32,45] The physiological role of CYP77A4 is unlikely to be the production of fatty acid...
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Báo cáo khoa học: Mutants of Saccharomyces cerevisiae deficient in acyl-CoA synthetases secrete fatty acids due to interrupted fatty acid recycling docx
... extracellular fatty acids In addition, we determined the amount of lipid-bound fatty acids to cover all major pools of fatty acids (Fig 1B,D) The amount of cellular free fatty acids could be ... (square)] (D) Concentration of fatty acids in the pools of free fatty acids in the media (diamonds), of free fatty acids in the cells (square) and of esterified fatty acids (triangle) The error bars ... extracellular fatty acids Therefore, besides the import of exogenous fatty acids, additional release of internal fatty acids had to contribute to the increase of intracellular fatty acids However,...
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Báo cáo khoa học: Covalent activation of heart AMP-activated protein kinase in response to physiological concentrations of long-chain fatty acids docx
... activation of AMPK by fatty acids and one that is common to the ÔclassicalÕ activation pathway However at this time we cannot discount the possibility that exposure to fatty acids may promote other ... perfusion we tested the effects of 0.25 and 0.5 mM fatty acids against two control conditions (Table 1) Control was where the initial perfusate fatty acid concentration was zero This is technically ... following exposure to fatty acid and allosteric activation by AMP were mutually exclusive effects for a-1 AMPK whereas for Table The effect of perfusion with long-chain fatty acids on the activity...
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Báo cáo khoa học: Alpha-oxidation of 3-methyl-substituted fatty acids and its thiamine dependence pptx
... Stereochemistry of the a-oxidation of 3-methyl-branched fatty acids in rat liver J Lipid Res 40, 601–609 Foulon, V (2001) a-Oxidation of 3-Methyl-Branched Fatty Acids: Study of the Enzymes Involved in the ... 3-methyl-branched fatty acid is activated to the corresponding CoA-ester by an acyl-CoA synthetase which is most probably present in the peroxisomal Fig a-Oxidation of 3-methyl-branched fatty acids The ... 3-methyl-branched fatty acids FEBS Lett 407, 197–200 29 Croes, K., Casteels, M., Asselberghs, S., Herdewijn, P., Mannaerts, G.P & Van Veldhoven, P.P (1997) Formation of a 2-methylbranched fatty aldehyde...
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Báo cáo Y học: In vivo activation of plasma membrane H+-ATPase hydrolytic activity by complex lipid-bound unsaturated fatty acids in Ustilago maydis docx
... altered the fatty acid profile, but that abnormal sterols per se were probably not directly responsible for the changes observed in H+-ATPase activity We tested the hypothesis that CLB -fatty acids could ... that, although the particular fatty acid may be different for each species, activation of the plasma membrane H+-ATPase by increases in the unsaturation of the CLB -fatty acids is a physiological and ... Stress activation of H+-ATPase by fatty acids (Eur J Biochem 269) 1007 Ó FEBS 2002 Table Relevant biological characteristics of U maydis...
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Báo cáo Y học: Kinetic analysis of hydroxylation of saturated fatty acids by recombinant P450foxy produced by an Escherichia coli expression system docx
... specificity of rP450foxy for saturated fatty acids Enzymatic activity was assayed at a fixed concentration (125 lM) of fatty acid (C9-C18) C means control reaction without fatty acid Data are mean values ... determined the substrate specificity of rP450foxy against saturated fatty acids Figure shows that rP450foxy was active against fatty acids with a chain length of C9 (nine carbon atoms, nonanoic acid) ... Interaction of the resting rP450foxy with the substrate fatty acids Spectral changes were observed upon mixing the resting rP450foxy with saturated fatty acids with chain length from C8 to C18 They were...
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Báo cáo khoa học: Activation of Stat5 and induction of a pregnancy-like mammary gland differentiation by eicosapentaenoic and docosapentaenoic omega-3 fatty acids docx
... 3.1 0.2 ratio includes a wider range of n-6 and n-3 fatty acids and ratio only reflects the polyunsaturated (more than four double bonds) fatty acids It is noteworthy that since we exclude C18:2 ... result in an abundance of n-3 and a reduction in n-6 fatty acids in the organs and tissues of these mice, in the absence of dietary n-3 fatty acids When transgenic and wild-type mice were maintained ... analyzed fatty acids to that of a fixed concentration of external standard when added Fat-1 transgenic mice We recently developed a fat-1 transgenic mouse model capable of converting n-6 fatty acids...
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Báo cáo khoa học: Hidden stereospecificity in the biosynthesis of divinyl ether fatty acids ppt
... ether synthases M Hamberg Table Isotope composition of deuterated fatty acid hydroperoxides and divinyl ether fatty acids Isotopic analysis was carried out with selected ion monitoring mass spectrometry ... stereospecifically deuterated at the appropriate carbon atoms Results Stereospecifically deuterated fatty acids and hydroperoxides Stereospecifically deuterated stearates were synthesized starting with ... (reduced[14–2H]13(S)-HPOD), m ⁄ z 311 and 312 (reduced[8-2H]9(S)-HPOD), and m ⁄ z 308 and 309 (divinyl ether fatty acids) Compound Monodeuterated molecules (%) Retention of deuterium (%) [14(R)-2H]13(S)-HPOD...
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Báo cáo khoa học: Cytochrome P450 metabolizing fatty acids in plants: characterization and physiological roles pptx
... Cytochrome P450-dependent fatty acids hydroxylases in plants Phytochem Rev 5, 359– 372 33 Soliday C & Kolattukudy P (1977) Biosynthesis of cutin omega-hydroxylation of fatty acids by a microsomal ... Cytochrome P450 metabolizing fatty acids in plants Salaun J, Weissbart D, Durst F, Pflieger P & Mioskow¨ ski C (1989) Epoxidation of cis and trans delta-9-unsaturated lauric acids by a cytochrome P450-dependent ... and suberin studies [1,2] These protective biopolymers are made mostly of hydroxyfatty acids and a,x-dicarboxylic acids esterified to each other and to glycerol The hydroxyl groups of the FAs can...
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Báo cáo khoa học: Metabolic pathway that produces essential fatty acids from polymethylene-interrupted polyunsaturated fatty acids in animal cells pot
... Polymethylene-interrupted fatty acid metabolism T Tanaka et al Fig Schematic representation of metabolic pathway for synthesis of essential fatty acids from C20 polymethylene-interrupted polyunsaturated fatty acids ... total fatty acid), are eaten as a snack food in Japan The metabolism of PMI-PUFAs shown here is thought to be the process by which unsuitable fatty acids are converted into the essential fatty acids ... synthesis and recycling of polyunsatu- Polymethylene-interrupted fatty acid metabolism rated fatty acids Prostaglandins Leukot Essent Fatty Acids 67, 79–83 35 Tanaka T, Shibata K, Hino H, Murashita...
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Báo cáo khoa học: Characterization of surface n -alkanes and fatty acids of the epiphytic lichen Xanthoria parietina, its photobiont a green alga Trebouxia sp., and its mycobiont, from the Jerusalem hills pot
... hydrocarbons and fatty acids of X parietina, its photobiont and mycobiont collected from four different locations indicated the presence of 27 n-alkanes and six major fatty acids Quantitative ... [42] Ten major fatty acids were identified in the lichen, photobiont and mycobiont (Table 1) The mycobiont and lichen not contain the (Z,Z,Z)-9,12,15-18 : fatty acid, but this fatty acid is found ... the Botanical Institute, St Petersburg, Russia) not contain the 18 : and 18 : fatty acids, and produce only two fatty acids: 16 : (30% and 51%, respectively) and 18 : (69% and 42%, respectively)...
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Trans fatty acids
... suppressed by all cis–trans fatty acids used • Cycloxygenase/thromboxane synthase activity is significantly inhibited by polyunsaturated fattyacids • Trans fatty acids may modify the activity ... conformation-resembles saturated – Free beer What’s the deal with these fatty acids? • Hydrogenation- a process to transform saturated fatty acids in the form of oils to a more viscous unsaturated form ... combination of cis and trans unsaturated fatty acids • Free Tibet The chemistry? Cis The chemistry-trans The chemistry-saturated So what’s the big deal? • Trans fatty acids occur in nature (Jirovitz et...
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Effects of dietary n-3 and n-6 fatty acids levels on egg and larval quality of Eurasian perch pdf
... FARNDALE B.M., BRUCE M.P., NAVAS J.M & M CARILLO, 1997 - Effects of broodstock dietary lipid on fatty acid compositions of eggs from sea bass (Dicentrarchus labrax) Aquaculture, 149: 107-119 LANDS,...
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Special Topic: Pesticide Residues in Food potx
... • • • • • Insecticides Herbicides Fungicides Rodenticides Bactericides Biopesticides Special application Special Application Chemicals • Acaracides, Algicides, Avicides, Bactericides, Piscicides, ... Aquatic and terrestrial • Human Health – Acute and chronic – Populations and sub-populations – Special protection for children 30 EPA •5 Principles of Environmental Toxicology Principles of Environmental...
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Omega Fatty Acids - Omega-3 và Omega-6 doc
... JAMA Nov 2002 - Maggie B Covington MD Omega-3 fatty acids American Family Physician Jul 2004 - CatherineH MacLean, MD, PhD Effects of Omega-3 Fatty Acids on Cancer risk, a Systemic Rewiew, JAMA ... chất béo bão hòa (saturated) Vấn đề Omega-3 Omega-6 phức tạp Cho tới ngày nay, tìm tòi Omega-3 fatty acids cho thấy kết trái ngược nhau, phần lớn cách nghiên cứu không rõ rệt (nhận xét thay can ... oxide xuất xứ từ nội mạc, giảm kết tụ tiểu cầu giảm eicosanoids gây viêm Ngoài có chứng Omega-3 fatty acids ngừa chứng tim đập sai nhịp làm cho tim quân bình (Trịnh Cường & Giang Nguyễn Trịnh) Tóm...
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