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L-leucine, beta-hydroxy-beta-methylbutyric acid (HMB) and creatine monohydrate prevent myostatin-induced Akirin-1/Mighty mRNA down-regulation and myotube atrophy.
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BACKGROUND
The purpose of this study was to examine if L-leucine (Leu), β-hydroxy-β-methylbutyrate (HMB), or creatine monohydrate (Crea) prevented potential atrophic effects of myostatin (MSTN) on differentiated C2C12 myotubes.
METHODS
After four days of differentiation, myotubes were treated with
Investigation of L-leucine in reducing the moisture-induced deterioration of spray-dried salbutamol sulfate power for inhalation.
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The aim of this study was to investigate the ability of L-leucine (LL) in preventing moisture-induced deterioration in the in vitro aerosolization performance of spray-dried (SD) salbutamol sulfate (SS). Increasing mass fraction of LL (5-80%) were co-spray dried with SS, and the physicochemical
Effect of prolonged administration of L-leucine-4-anti-pyrineamide dihydrochloride on certain organs and blood formation system in rat.
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Newly synthesized L-leucine-4-antipyrineamide shows the biological effect of aminopyrine. In contrast, it does not cause any adverse effect on the growth of rat, and induces neither degeneration of the parenchymal organs nor agranulocytosis.
Jejunal microvilli atrophy and reduced nutrient transport in rats with advanced liver cirrhosis: improvement by Insulin-like Growth Factor I.
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BACKGROUND
Previous results have shown that in rats with non-ascitic cirrhosis there is an altered transport of sugars and amino acids associated with elongated microvilli. These alterations returned to normal with the administration of Insulin-Like Growth Factor-I (IGF-I). The aims of this study
[Pharmacological studies on degeneration and regeneration of the peripheral nerves. (2) Effects of methylcobalamin on mitosis of Schwann cells and incorporation of labeled amino acid into protein fractions of crushed sciatic nerve in rats].
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Male Wistar rats (140 to 150 g) in which the unilateral sciatic nerve had been crushed were treated consecutively with methylcobalamin (5, 50 and 500 mug/kg/day i.p.) or saline immediately after the nerve-crush. Thereafter, they were periodically sacrificed for biochemical and histological
NLRP3 inflammasome activation in retinal pigment epithelial cells by lysosomal destabilization: implications for age-related macular degeneration.
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OBJECTIVE
To evaluate the effect of lysosomal destabilization on NLRP3 inflammasome activation in RPE cells and to investigate the mechanisms by which inflammasome activation may contribute to the pathogenesis of age-related macular degeneration (AMD).
METHODS
Human ocular tissue sections from
Branched-chain amino acids reduce hindlimb suspension-induced muscle atrophy and protein levels of atrogin-1 and MuRF1 in rats.
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Atrogin-1 and MuRF1, muscle-specific ubiquitin ligases, and autophagy play a role in protein degradation in muscles. We hypothesized that branched-chain amino acids (BCAAs) may decrease atrogin-1, MuRF1, and autophagy, and may have a protective effect on disuse muscle atrophy. To test this
L-Leucine as an excipient against moisture on in vitro aerosolization performances of highly hygroscopic spray-dried powders.
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L-Leucine (LL) has been widely used to enhance the dispersion performance of powders for inhalation. LL can also protect powders against moisture, but this effect is much less studied. The aim of this study was to investigate whether LL could prevent moisture-induced deterioration in in vitro
Trehalose induces autophagy via lysosomal-mediated TFEB activation in models of motoneuron degeneration.
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Macroautophagy/autophagy, a defense mechanism against aberrant stresses, in neurons counteracts aggregate-prone misfolded protein toxicity. Autophagy induction might be beneficial in neurodegenerative diseases (NDs). The natural compound trehalose promotes autophagy via TFEB (transcription factor
Potential antiproteolytic effects of L-leucine: observations of in vitro and in vivo studies.
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The purpose of present review is to describe the effect of leucine supplementation on skeletal muscle proteolysis suppression in both in vivo and in vitro studies. Most studies, using in vitro methodology, incubated skeletal muscles with leucine with different doses and the results suggests that
Adsorption characteristics of an immobilized metal affinity membrane.
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An immobilized metal affinity (IMA) hollow-fiber membrane was prepared by radiation-induced graft polymerization of glycidyl methacrylate (GMA) onto a porous polyethylene hollow fiber, followed by chemical conversion of the produced epoxide group into an iminodiacetate (IDA) group and its chelation
Demonstration and characterization of a transport system capable of lysine and leucine absorption that is encoded for in porcine jejunal epithelium by expression of mRNA in Xenopus laevis oocytes.
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Defolliculated Xenopus laevis oocytes were injected with size-fractionated poly(A)+ RNA (RNA) isolated from the jejunal epithelium of growing pigs (average BW 33.8 kg) to identify proteins capable of Na+ -independent amino acid transport. The ability of oocytes to absorb L-lysine (lysine) or
Protoporphyrin-induced photodynamic effects on transport processes across the membrane of human erythrocytes.
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Previous studies have shown that illumination of erythrocytes with visible light in the presence of protoporphyrin results in cross-linking of membrane proteins and deterioration of several membrane functions, e.g. active transport of K+ and Na+. In the present study it is shown that
Functional and morphological changes of the exocrine pancreas in ciclosporin-treated rats.
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We have examined whether or not ciclosporin A (CsA) affects structure and function of the exocrine pancreas. Male Wistar rats were treated once a day for 7 days with intraperitoneal injections of vehicle or 5, 15, 30, or 50 mg/kg of CsA. Following the CsA treatment, incorporations of [3H]thymidine
Peptidases from two strains of Pseudomonas fluorescens: partial purification, properties and action on milk.
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Pseudomonas fluorescens strains 240 and 32A expressed cell-associated peptidase activity which was shown by subcellular fractionation to be primarily intracellular. Two peptidases were partly purified from strain 32A. One specifically hydrolysed N-alpha-benzoyl-DL-arginine-4-nitroanilide and was
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