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[Effect of L-alanyl-L-glutamine on expression of insulin-like growth factor-1 in intestinal tissues of low-birth-weight newborn rats with hypoxia/reoxygenation-induced intestinal injury].

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OBJECTIVE To study the effect of L-alanyl-L-glutamine (Ala-Gln) on the levels of insulin-like growth factor-1 (IGF-1) and IGF-1 receptor (IGF-1R) in the intestinal tissues of low-birth-weight (LBW) newborn rats with hypoxia/reoxygenation-induced intestinal injury. METHODS Pregnant rats were fed with

Influence of Serum and Hypoxia on Incorporation of [(14)C]-D-Glucose or [(14)C]-L-Glutamine into Lipids and Lactate in Murine Glioblastoma Cells.

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Glucose and glutamine are essential energy metabolites for brain tumor growth and survival under both normoxic and hypoxic conditions. Both metabolites can contribute their carbons to lipid biosynthesis. We used uniformly labeled [(14)C]-U-D-glucose and [(14)C]-U-L-glutamine to examine the profile

The role of dietary supplementation with L-glutamine in inflammatory mediator release and intestinal injury in hypoxia/reoxygenation-induced experimental necrotizing enterocolitis.

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OBJECTIVE Necrotizing enterocolitis (NEC) is a multifactorial syndrome in the neonate. Enteral feeding practices are an important component of gastrointestinal injury in neonatal NEC. In the present study, we examined the protective effect of oral supplementation with L-glutamine, an important

Glutamine and glutamate limit the shortening of action potential duration in anoxia-challenged rabbit hearts.

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In clinical conditions, amino acid supplementation is applied to improve contractile function, minimize ischemia/reperfusion injury, and facilitate postoperative recovery. It has been shown that glutamine enhances myocardial ATP/APD (action potential duration) and glutathione/oxidized glutathione

Effect of hypoxia upon the growth and sprouting activity of cultured aortic endothelium from the rat.

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Endothelial cells were obtained from the aortas of Wistar rats by collagenase digestion. Cells were grown to confluence in medium 199 enriched with L-glutamine but without specific growth factors. Cells were subcultured into 35 mm dishes or 25 cm2 flasks coated with fibronectin. For cell growth

Effects of L-glutamine supplementation on maternal and fetal hemodynamics in gestating ewes exposed to alcohol.

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Not much is known about effects of gestational alcohol exposure on maternal and fetal cardiovascular adaptations. This study determined whether maternal binge alcohol exposure and L-glutamine supplementation could affect maternal-fetal hemodynamics and fetal regional brain blood flow during the

Evitar (l-Alanyl-l-Glutamine) Regulates Key Signaling Molecules in the Pathogenesis of Postoperative Tissue Fibrosis.

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OBJECTIVE Hypoxia and the resulting oxidative stress play a major role in postoperative tissue fibrosis. The objective of this study was to determine the effect of l-alanyl-l-glutamine (Ala-Gln) on key markers of postoperative tissue fibrosis: hypoxia-inducible factor (HIF) 1α and type I

[The correction with nooglutil and L-pyroglutamyl-D-alanine amide of cognitive disorders in rats due to intrauterine hypoxia].

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Novel nootropic compounds, nooglutyl (N-5-hydroxy(nicotinoyl)-L-glutamine acid, 25 mg/kg/day) and L-pyroglutamyl-D-alanine amide (1 mg/kg/day) administered intracutaneously from the 8th to 20th day of life prevent from movement hyperactivity in "open field", disturbances in ability to training and

Beta-endorphin-induced cardiorespiratory depression is inhibited by glycyl-L-glutamine, a dipeptide derived from beta-endorphin processing.

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Glycyl-L-glutamine (Gly-L-Gln), or beta-endorphin-(30-31) [beta-End-(30-31)], is synthesized through the post-translational processing of beta-End-(1-31). Evidence that gly-L-gln is a prominent end product of beta-End-(1-31) processing in cardioregulatory regions of rat brain prompted us to

Acute L-glutamine deprivation compromises VEGF-a upregulation in A549/8 human carcinoma cells.

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Tumor ischemia participates in angiogenesis and cancer progression through cellular responses to hypoxia and nutrient deprivation. However, the contribution of amino acids limitation to this process remains poorly understood. Using serum-free cell culture conditions, we tested the impact of

[Influences of early enteral feeding enriched with glutamine on the gut blood flow and oxygen consumption in severely burned mini-swines].

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In order to investigate the effects of L-glutamine on the gut blood flow and oxygen consumption after burn, 14 mini-swines were randomly and equally divided into Non-Gln group and Gln group (which was supplied with L-glutamine, 0.64 g/kg day). Gut blood flow and oxygen consumption were continuously

The conserved hypothetical protein Rv0574c is required for cell wall integrity, stress tolerance, and virulence of Mycobacterium tuberculosis.

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The virulence of Mycobacterium tuberculosis is intimately related to its distinctive cell wall. The biological significance of poly-α-L-glutamine (PLG), a component in the cell wall of virulent mycobacteria, has not been explored adequately. The focus of this study is to investigate the role of a

Challenges in the Management of Sickle Cell Disease During SARS-CoV-2 Pandemic

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The management of sickle cell disease (SCD) and its complications in the COVID-19 era is very challenging. The recurrent sickling process in SCD causes tissue hypoxemia and micro-infarcts, resulting in end organ damage. Since the outbreak of SARS-CoV-2 pandemic, little data has been published about

Na+-dependent neutral amino acid transporter ASCT2 is downregulated in seriously traumatized human intestinal epithelial cells.

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OBJECTIVE Serious trauma to the body often is associated with changes in protein metabolism in multiple organs and tissues. Clinically, the catabolic response results in a generalized negative nitrogen balance. Nutrition support has been an important component of the care of seriously traumatized

Adaptative metabolic response of human colonic epithelial cells to the adverse effects of the luminal compound sulfide.

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Hydrogen sulfide (H(2)S), a bacterial metabolite present in the lumen of the large intestine, is able to exert deleterious effects on the colonic epithelium. The mechanisms involved are still poorly understood, the reported effect of sulfide being its capacity to reduce n-butyrate beta-oxidation in

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