is alphalinolenic acid an omega3 fatty acid

FATTY ACID COMPOSITION INCLUDING TRANS FATTY ACIDS CONTENT OF SELECTED VIETNAMESE INSTANT NOODLES

Ngày tải lên : 28/08/2013, 16:28

... 2005) RESULTS AND DISCUSSION 3.1 Fatty acid compositions of instant noodles Table shows fatty acid composition of instant noodles analyzed Palmitic acid was the most abundant fatty acid in all ... * Fatty acids less than 0.1%: C15:0, C17:0, C21:1 * SFA: saturated fatty acids * PUFA: polyunsaturated fatty acids *.MUFA: monounsaturated fatty acids * TFA: trans fatty acids * tc: traces acid ... SB3 and SB13, 0.33%, and 0.25%, respectively The trans fatty acids comprise isomers of 18:1, 18:2 and 18:3, and trans 18:2 isomers being the major group of TFA present in all the analyzed brands,...

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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

Ngày tải lên : 07/03/2014, 03:20

... CYP77A4, an 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 ... and subjected to chiral HPLC analysis with 100% heptane at a ﬂow rate of 0.5 mLÆmin)1 (B) Structures of the enantiomers CYP77A4, an epoxy fatty acid- forming enzyme Metabolism of a-linolenic acid ... ‘desaturase-like’ protein, able to transform linoleic acid into 12,13-epoxyoctadeca-cis-9enoic acid (vernolic acid) This compound can make up 50–90% of total fatty acids in seed oil of certain Euphorbiaceae,...

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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

Ngày tải lên : 07/03/2014, 05:20

... free fatty acids Whereas convincing data had been presented showing that Fat1p is impor- Fatty acid secretion in mutants of yeast tant for fatty acid import in S cerevisiae [27], the transport ... In mutants defective for Faa1p and Faa4p, we observed a transient fatty acid secretion phenotype We demonstrate fatty acid transport in the absence of any acyl-CoA synthetase activity, and data ... in whitish flakes on the surface of the culture The composition of the secreted fatty acids reflects the profile of fatty acids found in membrane lipids of yeast and consists of myristic acid (14:0),...

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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

Ngày tải lên : 08/03/2014, 22:20

... kcat (min)1) kcat/Km (min)1ÆlM Nonanoic acid Decanoic acid Undecanoic acid Dodecanoic acid Tridecanoic acid Tetradecanoic acid Pentadecanoic acid Hexadecanoic acid 170.0 8.7 14.0 9.4 9.0 2.8 8.4 ... products is shown in Fig DISCUSSION Fig Steady state kinetics of long-chain fatty acids Substrates are tridecanoic acid (j), tetradecanoic acid (d), pentadecanoic acid (s), and hexadecanoic acid ... 46 43 74 ND Kinetic constants could not be determined using octanoic, heptadecanoic and octadecanoic acids as substrates below C12 (dodecanoic acid) , and became larger than the Kd value for the...

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Tài liệu VAI TRÒ CUẢ OMEGA-3 FATTY ACIDS TRONG VIỆC ĐIỀU TRỊ VÀ PHÒNG NGỪA BỆNH doc

Ngày tải lên : 24/01/2014, 04:20

... 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 ... 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 tranh kéo ... tương tác để thực số lượng chất tiền n-3 eicosanoids mô Giữ cho tiêu thụ n-3 fatty acids không thay đổi, nồng độ LC- n-3 fatty acids Omega-3 fatty acids bệnh sa sút trí tuệ Những kiện vể dịch...

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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

Ngày tải lên : 18/02/2014, 17:20

... with kringle is sufficient for their action This finding is in agreement with an earlier report that oleic acid binds to kringle with an affinity that is an order of magnitude higher than found for ... optical changes in Fig 1A and these can be misinterpreted as an activating effect of oleic acid Therefore, in the present study we chose to work with higher plasmin concentrations (20 nm) and water-soluble ... oleic acid, at concentrations (in lM) indicated by the numbers, and the absorbance at 405 nm was measured The mean and standard deviation (dotted lines) of five measurements are shown for both panels...

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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

Ngày tải lên : 19/02/2014, 16:20

... action of EPA and DHA (Eur J Biochem 271) 4465 Statistical analysis The measured values are expressed as mean ± SEM Statistical analysis was performed by one-way analysis of variance (ANOVA) followed ... 428, 205–211 Woodman, S.E., Park, D.S., Cohen, A.W., Cheung, M.W., Chandra, M., Shirani, J., Tang, B., Jelicks, L.A., Kitsis, R.N., Christ, G.J., Factor, S.M., Tanowitz, H.B & Lisanti, M.P (2002) ... (San Luis Obispo, CA, USA) LY294002, U0126 and PD98059 were from CalBiochem (San Diego, CA, USA) The polyclonal anti-Rb and p-Rb Igs were from Cell Signaling Technology (Beverly, MA, USA) Anti-caveolin-1...

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Is Chronic Radiation an Effective Prophylaxis Against Cancer? pptx

Ngày tải lên : 06/03/2014, 02:21

... exposures to any amount of radiation are potentially harmful Because this hypothesis is very well established and because many strong radiation protection organizations are in place, scientists and government ... AEC; and former Head, Health Physics Division of INER Y.C Luan is Senior Scientist and Manager of Radiation Protection, NUSTA; consultant to NBC Society; former Manager, Radioactive Waste Management ... Manager, NUSTA, and former Manager, Nuclear Fuel Fabrication Plant of INER, AEC K.L Soong is Senior Scientist, NUSTA, and former Senior Scientist and Leading Scientist, Geology and Mineralogy...

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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

Ngày tải lên : 07/03/2014, 15:20

... dominance of the fatty acid- driven pathway for activation of AMPK over at least some aspects of insulin signalling This dominance of the fatty acid effect on AMPK activity provides an explanation ... glucose fatty acid cycle Its role in insulin sensitivity and the metabolic disturbances of diabetes mellitus Lancet i, 785–789 Caterson, I.D., Fuller, S.J & Randle, P.J (1982) Eﬀect of the fatty acid ... signiﬁcantly increased P-T172 abundance in the combined AMPK a-1 and a-2 subunits by 2.5-fold without causing any change in the abundance of AMPK a-subunit protein Activation of AMPK by fatty acids...

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Báo cáo khoa học: Neuroserpin Portland (Ser52Arg) is trapped as an inactive intermediate that rapidly forms polymers Implications for the epilepsy seen in the dementia FENIB ppt

Ngày tải lên : 07/03/2014, 16:20

... ratios and times Lane 1, lg Ser52Arg neuroserpin; lane 2, lg tPA; lanes 3–5 correspond to an incubation of at a Ser52Arg neuroserpin to tPA ratio of 1, and 10; lanes 6–8 correspond to an incubation ... However, this is unlikely as the latent conformer of the serpins is unable to form polymers [17,18] Other characteristics of the latent conformer are a failure to unfold in denaturants and enhanced ... melting temperature (Tm) This gave a Tm of 55 °C This Tm was surprising as it is close to the value for wild-type neuroserpin (56.6 °C) and signiﬁcantly higher than that for Ser49Pro neuroserpin...

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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

... Stereochemistry and synthesis of phytol, geraniol, and nerol Proceedings of the Chem Soc 263–264 Ackman, R.G & Hansen, R.P (1967) The occurrence of diastereoisomers of phytanic and pristanic acids and their ... to a 2-methyl-branched fatty acid (pristanic acid in the case of pristanal), which can be activated to the corresponding acyl-CoA ester This CoA-ester can then enter the peroxisomal b-oxidation ... Metabolism of phytanic acid and 3-methyl-adipic acids in patients with Adult Refsum’s disease In Peroxisomal Disorders and Regulation of Genes, 25–28 September 2002, Belgian Society for Cell and...

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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

Ngày tải lên : 08/03/2014, 22:20

... unsaturation of the CLB -fatty acids is a physiological and relevant effect in stress adaptation in plants and fungi ACKNOWLEDGEMENTS We wish to thank M Lewis for the preliminary lipid analysis A.H was ´ ... for this discrepancy is unknown but maybe due to species variation It is noteworthy that U maydis H+-ATPase is a slightly larger enzyme than that of Saccaromyces cerevisiae [18] In our hands, ... for enzyme activation is shown in Fig This mechanism is identical to a general mechanism for inhibition except that, in this case, the enzyme is inhibited by the absence and not by the presence...

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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

Ngày tải lên : 16/03/2014, 10:20

... pregnancy Y E Liu et al 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 ... Brunswick, NJ, USA), the transgenic animals are characterized by an abundance of n-3 fatty acid and a balanced n-6 ⁄ n-3 fatty acid ratio of : in their tissues and organs, whereas wild-type mice ... pregnancy Table Analyses of fatty acid ratio and relative contents of n-3 PUFAs EPA, DPA, and DHA in mammary glands Whole inguinal mammary fat pads were isolated and contents of fatty acids were analyzed...

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Báo cáo khoa học: Hidden stereospeciﬁcity in the biosynthesis of divinyl ether fatty acids ppt

Ngày tải lên : 16/03/2014, 18:20

... and trimethylsilylated), and m ⁄ z 308 and 309 (methyl esters of divinyl ether fatty acids) Acknowledgements Mrs Gunvor Hamberg is thanked for expert technical assistance and for collection and ... chloroform); earlier published for 3(R)hydroxyhexanoic acid, [a]D ¼ )28° [24] and for 3(R)hydroxyoctanoic acid, [a]D ¼ )21° [25] An aliquot was esteriﬁed with diazomethane and converted to its 2(S)phenylpropionyl ... 2(S)phenylpropionyl derivative [26] Analysis by GLC showed an enantiomeric composition of > 98% 3(R)- and < 2% 3(S)-hydroxyheptanoic acid Methyl 14(R)-hydroxystearate 3(R)-Hydroxyheptanoic acid (438 mg, mmol)...

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Báo cáo khoa học: Cytochrome P450 metabolizing fatty acids in plants: characterization and physiological roles pptx

Ngày tải lên : 22/03/2014, 16:21

... sativa Nicitiana tabacum Arabidopsis thaliana Arabidopsis thaliana Arabidopsis thaliana Arabidopsis thaliana Arabidopsis thaliana Petunia hybrida Solanum tuberosum Arabidopsis thaliana Helianthus tuberosus ... synthesis is now well established Plants are sessile organisms and rely on a battery of chemicals for survival Lipid metabolism is a major player in the defence network of plants and it is tempting ... (1992) Fatty acid degradation in plants Prog Lipid Res 31, 417–446 Koiwai A & Matsuzaki T (1988) Hydroxy and normal fatty acid distribution in stigmas of Nicotiana and other plants Phytochemistry...

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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

Ngày tải lên : 23/03/2014, 09:20

... lipids of sciadonic acid- supplemented cells was the appearance of an unknown fatty acid This fatty acid, identiﬁed as 16:2 D-7,10 by the following experimental results, is an important metabolite ... with 15 lg 20:0 as an internal standard and subjected to methanolysis for GC analysis The amounts of fatty acids were determined from the peak area and expressed as lg ⁄ dish ( · 106 cells) ... Polymethylene-interrupted fatty acid metabolism T Tanaka et al Sugano M, Ikeda I, Wakamatsu K & Oka T (1994) Inﬂuence of Korean pine (Pinus koraiensis)-seed oil containing cis-5,cis-9,cis-12-octadecatrienoic acid...

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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

Ngày tải lên : 23/03/2014, 17:21

... produce saturated fatty acids such as tetradecanoic acid (5–9%), hexadecanoic acid (34–37%) and octadecanoic acid (23–30%) (Table 1) Three isomers, cis9-18 : 1, cis-10-18 : and cis-12-18 : 1, have ... series of anteiso-alkanes Anteiso-C26 was the most prevalent, with smaller amounts of anteiso-C24, anteiso-C23 and anteiso-C22 Twenty-one hydrocarbons were identiﬁed in Cetraria islandica [56] ... contain the 18 : and 18 : fatty acids, and produce only two fatty acids: 16 : (30% and 51%, respectively) and 18 : (69% and 42%, respectively) It is probably an artefact of the GC analysis Mycobionts...

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Trans fatty acids

Ngày tải lên : 28/03/2014, 12:43

... in a 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 ... Moderation is key • Give us an A References • Special Thanks to Johnny Mack, and Jewels, for the “Renegades”, and the the hair care! • Roach et al Comparison of cis and trans fatty acid containing ... the cancer connection • Strong correlations between accumulation of trans fatty acids in butt fat, and breast cancer rates • Comparisons were done with women who had low, vs high trans fatty acid...

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Báo cáo khoa học: Transglutaminase from Streptomyces mobaraensis is activated by an endogenous metalloprotease pot

Ngày tải lên : 31/03/2014, 07:20

... R., Tanaka, H & Motoki, M (1989) Puriﬁcation and characteristics of a novel transglutaminase derived from microorganisms Agric Biol Chem 53, 2613–2617 10 Aeschlimann, D & Paulsson, M (1994) Transglutaminases: ... separated again by SDS gel electrophoresis and blotted, and the protein at 39 kDa was excised and analysed by N-terminal sequencing A sequence of 18 amino acids was obtained which shared 61% sequence ... Materials and methods (A) 2.5 lM pro-TGase, 0.1 lM TAMEP and 0.01–0.20 lM P14 (B) Lane 1, P14 (0.6 lg); lane 2, TAMEP (% 0.2 lg); lanes 3–5, 0.5 lg of proTGase, 21 ng of TAMEP and 8, 2.6 and 0.8...

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