effect of phospholipid composition on haemostasis

by Melanie Scott

Publisher: De Montfort University in Leicester

Written in English
Published: Downloads: 757
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Edition Notes

Thesis (M. Phil) - De Montfort University, Leicester 2004.

  Beneficial effects of dietary phospholipids (PLs) have been mentioned since the early 's in relation to different illnesses and symptoms, e.g. coronary heart disease, inflammation or cancer. This article gives a summary of the most common therapeutic uses of dietary PLs to provide an overview of their approved and proposed benefits; and to identify further investigational needs. Dilution of a relative insensitive APTT reagent effectively increased its sensitivity to the cofactor effect of protein S, suggesting that different phospholipid content and/or composition might be responsible for the different sensitivity of APTT reagents to protein S. These results question the . biotechnology of plasma proteins haemostasis thrombosis and iron proteins international symposium florence Posted By J. R. R. TolkienMedia TEXT ID f89 Online PDF Ebook Epub Library Biotechnology Of Plasma Proteins Protein Science. A comprehensive study on the effect of processing on fatty acid and phospholipid compositions of Brachystegia eurycoma seed flour was conducted. Processing methods (boiling, fermentation and roasting) were adopted using standard analytical techniques.

Freezing of plant tissue adversely affects lipid composition. Immature soybean cotyledons (Glycine max L. Merr.) var. “Harosoy 63” were frozen with liquid N2, dry ice, or stored in a freezer (−20 C) before lipid extraction. The effects of freezing temperature, thawing rate, and cold storage on the lipid composition of frozen tissue revealed significantly higher levels of phosphatidic. Chemical composition of Escherichia coli. In: F. C. Neidhardt (ed.), Escherichia coli and Salmonella typhimurium: Cellular and molecular biology. American Society for Microbiology, Washington, D.C. AND Ballesta JP, Schaechter M. Effect of shift-down and growth inhibition on phospholipid metabolism of . In the present investigation, the effect of diet (CHO vs. Fat) and exercise intensity (low vs. high) on phospholipid FA composition was examined. The first important finding was that there was a significant and widespread effect of diet on phospholipid FA composition in skeletal muscles with diverse metabolic profiles.   Despite these impairments, the phospholipid composition of neonatal platelet membranes and the overall phospholipid surface expression upon .

We studied whether endurance training impacts insulin sensitivity by affecting the structural and storage lipids in humans. Eight male subjects participated (age 25 ± 1 years, height ± 3 cm, weight 76 ± 4 kg [mean ± SE]). Single-leg training was performed for 30 min/day for 4 weeks at ∼70% of single-leg maximal oxygen uptake. After 8, 14, and 30 days, a two-step hyperinsulinemic.   A high-fat diet is known to negatively affect the liver. It may cause nonalcoholic fatty liver disease or cirrhosis of the ing to a study, PC helped reduce lipids that can lead to. Roulet M, Frascarolo P, Pilet M et al. Effects of intravenously infused fish oil on platelet fatty acid phospholipid composition and on platelet function in postoperative trauma. JPEN J Parenter Enteral Nutr ; Ernst E, Neumann C, Saradeth T .

effect of phospholipid composition on haemostasis by Melanie Scott Download PDF EPUB FB2

The effect of phospholipid composition on haemostasis. (Thesis) Scott M. Publisher: De Montfort University [] Metadata Source: The British Library Type: Thesis.

Abstract: Highlight Terms No biological terms identified No abstract supplied. Formats. Abstract. Thesis at EThOS. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) http.

The phospholipid composition requirements for optimal prothrombin activation and factor Va inactivation by activated protein C (APC) anticoagulant were examined. Vesicles composed of phosphatidylethanolamine (PE) and phosphatidylcholine (PC) supported factor Va inactivation relatively well.

However, optimal factor Va inactivation still required relatively high concentrations of Cited by: Abstract To better understand the influence of phospholipid acyl-chain composition on the formation of pores by cytotoxic amphipathic helices in biological membranes, the leakage of aqueous contents induced by the synthetic peptide GALA (WEAALAEALAE ALAEHLAEALAEALEALAA) from large unilamellar phospholipid vesicles of various compositions has been studied.

Employing a multidisciplinary approach to phospholipid research, this work catalogues the current knowledge of this class of molecules and details the general, chemical, physical and structural properties of phospholipid monolayers and bilayers.

Phospholipid applications are also covered. Lipid and phospholipid fatty acid composition of plasma, red blood cells, and platelets and how they are affected by dietary lipids: A study of normal subjects from Italy, Finland, and the USA.

Plasma phospholipid fatty acid composition reflects, to a moderate degree, the fatty acid composition of the diet. To determine whether plasma phospholipid fatty acid composition might influence factor VII coagulant activity (factor VII c, we examined middle-aged adults free of diabetes and cardiovascular VII c was associated positively with the percentage of fatty acids.

phospholipid content of beef kidney is about 7 times that of the round muscle, as shown by the work of Bloor (,s). Influence of Diet on Composition of Phospholipids.-The data in the last three columns of Table I prove beyond a doubt that the.

A phospholipid is an amphipathic molecule which means it has both a hydrophobic and a hydrophilic component. A single phospholipid molecule has a phosphate group on one end, called the “head,” and two side-by-side chains of fatty acids that make up the lipid “tails.

” The phosphate group is negatively charged, making the head polar and. Structure of Phospholipids. Your body is a complicated machine, so you may be surprised to learn that important biological molecules that make up living things fall into only four main classes.

Because of this pleiotropic requirement for normal cell function, it has often been difficult to assign a specific role to a particular phospholipid or group of phospholipids. In most cell types it is difficult to effect systematic and extensive alteration of the normal phospholipid composition by alterations of the growth conditions.

Effect of phospholipid fatty acid composition of endothelial cells on cholesterol efflux rates. [E P Kilsdonk, A N Dorsman, T van Gent, A van Tol] PMID Abstract Human endothelial cells ( line) were loaded with cationized low density lipoprotein (LDL) and subsequently incubated with fatty acid/bovine serum albumin complexes.

Effects of apoptosis and lipid peroxidation on T-lymphoblastoid phospholipid-dependent procoagulant activity. Journal of Thrombosis and Haemostasis6 (7), of phospholipid hydrolysis. In the present work, a highly pu- rified preparation of phospholipase C from Bacillus cereus (20) was used to investigate the effect of phospholipid hydrolysis on several membranous enzymes of E.

coli. The use of membrane preparations from 32P-labeled cells provided a convenient method. Tests of EPs in human alcoholics are in their early stages, but the results are encouraging. In one study from Slovakia, 12 29 men and women diagnosed with alcoholic fatty liver took two capsules of an EP formulation (2 x mg) 3 times a day over 3 months.

EP therapy subjectively improved well-being in 76% of the patients. The proportion of each component phospholipid was calculated as a % of the total phospholipid. These data are shown in 4Table IV and also in Fig 3 (PC, PS, PE, PI, DPG and SM). The phospholipid and neutral lipid composition varied markedly between reagents.

For example, the total phospholipid concentration included a fold range (16– μg. The Lancet EFFECTS OF WEEK INCREASE IN DIETARY EICOSAPENTAENOIC ACID ON BLEEDING TIME, LIPIDS, AND PLATELET AGGREGATION Margareta Thorngren Anders Gustafson Medical Department, University Hospital, S 85 Lund, Sweden The effect of a diet rich in eicosapentaenoic acid (EPA) on platelet phospholipid fatty acid composition, platelet aggregation.

Considering diagnostic pathways and prolongations in both aPTT and PT assays 17 and ruling out inhibitor-like effects on specific coagulation factors, as well as thrombin inhibition, we decided to perform a second series of experiments searching for a phospholipid-binding effect of Sugammadex similar to that observed in patients with.

The phospholipid composition and cholesterol content of MPs and membrane fractions were analyzed by high performance thin layer chromatography. Results: The phospholipid composition of MPs was intermediate compared with that of platelet plasma‐ and granule membranes, and differed significantly from that of intracellular membranes.

There were. The phospholipid bilayer is composed of two layers of lipids. Each lipid contains a hydrophobic (water repelling) tail and a hydrophilic (water attracting) head. The lipids form into a bilayer with the hydrophobic tails facing the interior of the bilayer forming a hydrophobic region held together, in part, by intermolecular forces between the.

Journal of Thrombosis and Haemostasis. J Thromb Haemost. Jul; 17(7): – Published online Apr Effect of phospholipid vesicle composition and concentration on FVIII ‐equivalence of SI ‐Emi and BS ‐ in FXI a‐triggered TGA.

Human milk (HM) provides infants with macro- and micronutrients needed for growth and development. Milk phospholipids are important sources of bioactive components, such as long-chain polyunsaturated fatty acids (LC-PUFA) and choline, crucial for neural and visual development. Milk from mothers who have delivered prematurely.

The complex of phosphatidylinositol 4,5-bisphosphate and calcium ions is not responsible for Ca 2+-induced loss of phospholipid asymmetry in the human erythrocyte.

A study in Scott Syndrome, a disorder of calcium-induced phospholipid scrambling. Blood ; The effect of fixed charges on membrane permeability has been addressed by an electrochemical approach using a phospholipid monolayer absorbed on an electrode.

Tl transport across dioleoyl phosphatidylcholine (DOPC)–gramicidin and phosphatidylserine (PS)–gramicidin monolayers was investigated using cyclic voltammet. Wild post-larvae lipid was almost entirely phospholipid (%) and cholesterol (%) whilst hatchery stock showed lower phospholipid levels and significant amounts of triglyceride (–%).

Cellular membranes have a complex phospholipid composition that varies greatly depending on the organism, cell type and function. In spite of this complexity, most structural data available for phospholipid bilayers concern model systems containing only one or two different phospholipids.

Here, we examine the effect of cholesterol on the structure of a complex membrane reflecting the lipid. Abstract. The quality of the coagulation-related blood-derived products is markedly affected by the manner in which blood is collected.

Standard anticoagulation solutions contain citrate which efficiently prevents blood clotting by chelation of calcium and other metal ions.

Thus, if saturated fatty acids, with their straight tails, are compressed by decreasing temperatures, they press in on each other, making a dense and fairly rigid membrane. If unsaturated fatty acids are compressed, the “kinks” in their tails elbow adjacent phospholipid molecules away, maintaining some space between the phospholipid molecules.

Effects of phospholipid vesicles of varying composition. Biochemistry ; Biochemistry ; 42 Krishnaswamy S. Prothrombinase complex assembly contribution of protein-protein and protein-membrane interactions toward complex formation. Effect of dietary phospholipid level and phospholipid:neutral lipid value on the development of sea bass (Dicentrarchus labrax) larvae fed a compound diet - Volume 90 Issue 1 - Chantal L.

Cahu, José L. Zambonino Infante, Valérie Barbosa. Phospholipid composition of human and porcine arterial tissues Oxysterols stimulated sphingomyelin synthesis and inhibited sphingomyelin metabolism [ 34, 23, 24 ].

When radioactive Ca 2+ (45 Ca 2+) influx was measured, significantly higher influx of 45 Ca 2+ was noted in the endothelial cells cultured with added oxysterols indicating that.Hornstra G, Hemker HC.

Clot-promoting effect of platelet-vessel wall interaction: influence of dietary fats and relation to arterial thrombus formation in rats.

Haemostasis. ; 8 ()– Hornstra G, Chait A, Karvonen MJ, Lewis B, Turpeinen O, Vergroesen AJ. Influence of dietary fat on platelet function in. The phospholipid composition of biological membranes is dynamic and can vary widely. The table below shows the differences in the ratios of major phospholipid species phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylserine (PS), and sphingomyelin (SM) in plasma membranes from two different cell types.