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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 254 for “"phenylalanine"”.
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Assessing The Impact of Camp Phever On Blood Phenylalanine Levels
… that results in accumulation of the amino acid, phenylalanine, throughout the body. This can result in neurocognitive complications if individuals with this disease do not follow a low-protein diet. Camp PHEver is a weeklong summer camp that gives children with PKU an opportunity to obtain skills …
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Mechanistic evaluation and substrate specificity analysis of a phenylalanine aminomutase
Thesis (Ph. D.)--Michigan State University. Department of Chemistry, 2010
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"Substitution of ""universal"" Uridine-33 in yeast phenylalanine transfer ribonucleic (Rna)"
Embargo set by: Seth Robbins for item 70706 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Mathematical approaches to food nutrient content estimation with a focus on phenylalanine
… (PKU), for which patients must follow a low-phenylalanine diet for life. Some food databases provide the phenylalanine (Phe) content for a large number of unprocessed foods, and a limited number of composite foods; however, they are not exhaustive. As an attempt to complete this list, we …
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A Study of Diets Low in Phenylalanine and Tyrosine for Collagen Disease
… and one scleroderma case were treated with a low phenylalanine and tyrosine diet.</p> <p>The diets supplied approximately 1500 calories and 36 grams of protein. No more than 1500 mg. combined phenylalanine and tyrosine were given in any one day. Lofenalac was used as the principle source of …
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A Study of the Effect of Varying Serum Phenylalanine Levels on Changes in Intelligence Quotient
… were investigated to determine at which serum phenylalanine level (0-3.9 mg. %, 4-7.9 mg %, 8-11.9 mg. %, greater than 12 mg. %) there would be the greatest increase in intelligence. The children involved in the study were divided into the following groups according to the age dietary treatment …
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Methionine, lysine, and phenylalanine infusion and the effect on plasma amino acid concentrations and mammary uptake
… + lysine (ML), and methionine + lysine + phenylalanine (MLP) in a balance with glutamic acid (C) were infused at 25% of the amino acid content of pretreatment milk via the jugular vein. Rations were formulated at 16, 15, and 14% crude protein and 15, 18, and 21% crude fiber for 30, 120, …
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KINETICS, REGULATION AND PURIFICATION OF L-PHENYLALANINE AMMONIA-LYASE FROM GERMINATING LETTUCE SEEDS (PHENYLPROPANOIDS, ENZYME, ALPHA-AMINOXY - BETA-PHENYLPROPIONIC ACID)
<p>The kinetics of L-phenylalanine ammonia-lyase (PAL; EC 4.3.1.5) in germinating lettuce (Lactuca sativa cv. Grand Rapids) seeds was investigated. The Km of the enzyme was determined to be 4.2 x 10('-5) M. PAL in lettuce seeds did not show tyrosine ammonia-lyase activity. The nature of inhibition …
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Cataract formation in young rats as a consequence of maternal diets containing excess phenylalanine and low in tryptophan and/or vitamin E
Diets containing 5.0% excess phenylalanine; 6.0% excess protein (gelatin), and limited in tryptophan (75mg/lOOg) and/or vitamin E (O.lmg/IOOg) were fed to male rats during gestation and lactation. Addition of 5.0% phenylalanine result in a greater incidence of cataract than studies previously …
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The dietary management of phenylketonuria
… of each of the dietary components on blood phenylalanine concentrations in PKU may lead to improvements in management. Knowledge of the effects of such rigorous diet therapy on feeding behaviour is also important. In a series of studies, the effect of a number of dietary factors on plasma …
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Factors affecting metabolism and metabolic control in phenylketonuria
… is an inherited metabolic disorder treated by a phenylalanine restricted diet in order to avoid neurocognitive impairment. Blood phenylalanine is the main outcome marker which is modulated by many dietary factors. Traditionally, L-amino acid-based protein substitutes are the main nitrogen source …
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The Effect of Organic Resins on Ice Recrystallization
… counterparts. Among the amino acids tested, L-phenylalanine exhibited the highest IRI active, with an IC₅₀ = 14.0 mM [12.3, 15.6], while L-glycine showed the lowest IRI active, with an IC₅₀ = 287.1 mM [242.3, 316.2]. Moreover, all the tested β-amino acids had less IRI activity compared to their …
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The role of arylphorin, an insect storage hexamer, in tobacco hornworm, Manduca sexta.
… by in vivo and in vitro biosynthesis from ¹⁴C-phenylalanine. The latter procedure proved to be optimal for obtaining high specific activity. Then turnover of amino acid during adult development was analyzed for phenylalanine and alanine, which represent general patterns of amino acid …
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Non-electrolyte transport in brush border membrane vesicles from bovine small intestine
… of L-proline, L-lysine, L-methionine, and L-phenylalanine were sodium stimulated. Data indicated sodium independent transport accounted for more influx of L-lysine, L-methionine, and L-phenylalanine than sodium dependent transport. Sodium dependent and sodium independent fluxes were equal for …
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Development and characterization of cell-free amino acid incorporation systems from <u>Cellvibrio gilvus</u>
… magnesium ion, ammonium ion, and GTP. ¹⁴C-phenylalanine incorporation was stimulated by poly U in the presence of t-RNA which has been derived from this bacterium. The t-RNA had some activation effect on poly U-directed ¹⁴C-phenylalanine incorporation, whereas no effect on natural m-RNA …
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The biosynthesis of virginiamycin S₁
… acid components in the antibiotic. N-Methyl-L-phenylalanine was shown to arise from L-(U-14C)-phenylalanine and L-(methyl-14C)-methionine. L-(U-14C)-Phenylalanine was also efficiently incorporated into L-phenylglycine. The origin of the remaining three components was less clear. A small amount …
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