l leucine/debelost

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Global Metabolic Profiling of Plasma Shows that Three-Year Mild-Caloric Restriction Lessens an Age-Related Increase in Sphingomyelin and Reduces L-leucine and L-phenylalanine in Overweight and Obese Subjects.

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The effect of weight loss from long-term, mild-calorie diets (MCD) on plasma metabolites is unknown. This study was to examine whether MCD-induced weight reduction caused changes in the extended plasma metabolites. Overweight and obese subjects aged 40-59 years consumed a MCD (approximately 100

L-leucine supplementation worsens the adiposity of already obese rats by promoting a hypothalamic pattern of gene expression that favors fat accumulation.

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Several studies showed that l-leucine supplementation reduces adiposity when provided before the onset of obesity. We studied rats that were exposed to a high-fat diet (HFD) for 10 weeks before they started to receive l-leucine supplementation. Fat mass was increased in l-leucine-supplemented rats

Effect of L-Tryptophan and L-Leucine on Gut Hormone Secretion, Appetite Feelings and Gastric Emptying Rates in Lean and Non-Diabetic Obese Participants: A Randomized, Double-Blind, Parallel-Group Trial.

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OBJECTIVE Gut hormones such as cholecystokinin (CCK) and glucagon-like peptide-1 (GLP-1) play a role as satiation factors. Strategies to enhance satiation peptide secretion could provide a therapeutic approach for obesity. Carbohydrates and lipids have been extensively investigated in relation to

Dietary L-leucine and L-alanine supplementation have similar acute effects in the prevention of high-fat diet-induced obesity.

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High-protein diets have been shown to alleviate detrimental effects of high-fat diets and this effect can be partially mimicked by dietary L-leucine supplementation. Here, we aimed to elucidate the early mechanisms and the specificity of leucine effects. We performed a 1-week trial with male C57BL/6

Hypersecretion of insulin after the administration of L-leucine to obese children.

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Interactions between the metabolism of L-leucine and D-glucose in the pancreatic beta-cells.

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Beta-Cell-rich pancreatic islets microdissected from obese-hyperglycemic mice were used to study interactions between the metabolism of L-leucine and D-glucose. L-leucine reduced the islet content of aspartic acid whereas D-glucose, when added to L-leucine-incubated islets, increased the contents of

L-alanine transport in small intestine brush-border membrane vesicles of obese rats.

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Membrane vesicles from the small intestine brush border were obtained and used to determine the possible effects of genetic or nutritional obesity on L-alanine uptake. Membrane vesicles from Zucker fa/fa obese rats and cafeteria diet-fed Zucker Fa/? rats showed the same characteristics as those of

Evaluation of an Amino Acid Mix on the Secretion of Gastrointestinal Peptides, Glucometabolic Homeostasis, and Appetite in Obese Adolescents Administered with a Fixed-Dose or ad Libitum Meal

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Proteins have been demonstrated to reduce food intake in animals and humans via peripheral and central mechanisms. Supplementation of a dietetic regimen with single or mixed amino acids might represent an approach to improve the effectiveness of any body weight reduction program in obese subjects.

Insulin secretion by perfused islets from the obese Zucker rat.

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The dynamics of insulin secretion from pancreatic islets of the Zucker-obese rat were studied by in vitro perfusion of individual islets. Glucose and L-leucine were used as insulinogenic stimuli. Control pancreatic islets were obtained from both normal weight Zucker-thin littermates and equivalent

[In vivo study of mitochondrial oxidation in obese patients treated by means of calorie restriction].

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The energy restriction is the most common nutritional approach to treat obesity, whose efficiency depends on oxidative response against changes in body weight. In that context, the aim of the present work was to in vivo examine the mitochondrial oxidation of obese volunteers by the

Anomeric specificity of the insulin and glucagon secretory responses to D-glucose in lean and obese Zucker rats.

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The perfused pancreas of lean and obese Zucker rats was exposed, in the presence of L-leucine, to the anomers of D-glucose, which were administered on four successive occasions in the alpha/beta/alpha/beta or beta/alpha/beta/alpha sequence. In 5 lean and 6 obese rats, alpha-D-glucose was more

Coordinate induction of Na(+)-dependent transport systems and Na+,K(+)-ATPase in the liver of obese Zucker rats.

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Solute uptake into liver plasma membrane vesicles from either lean or obese Zucker rats was monitored. D-Glucose and L-leucine uptakes at physiological concentrations of the substrate were not different in lean and obese Zucker rats. In agreement with a previous report (Ruiz et al. (1991) Biochem.

Effect of diet-induced obesity on kinetic parameters of amino acid uptake by rat erythrocytes.

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The effects of cafeteria diet-induced obesity upon in vitro uptake of L-Alanine, Glycine, L-Lysine, L-Glutamine, L-Glutamic acid, L-Phenylalanine and L-Leucine by isolated rat erythrocytes have been studied. The total Phe and Leu uptakes followed Michaelis-Menten kinetics. The Glu uptake was fitted

Pharmaconutrition for the obese, critically ill patient.

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Obesity is an epidemic that affects approximately 30% of the adult population in the United States. The prevalence of obesity in the critically ill seems to correlate with the rise in obesity in the general population. Delivery of standard enteral nutrition (EN) to patients in the intensive care

Upstream molecular signaling pathways of p27(Kip1) expression in human breast cancer cells in vitro: differential effects of 4-hydroxytamoxifen and deficiency of either D-(+)-glucose or L-leucine.

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BACKGROUND The objective of this study was to investigate whether the levels of glucose or certain amino acids could regulate the expression of a cell cycle repressor protein p27(Kip1), thereby dictating the risk of cancer in either obesity or caloric/dietary restriction. Previously, we identified

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