Aldose Reductase
Mostrando 1-12 de 71 artigos, teses e dissertações.
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1. Discovery of Thiopyrimidinone Derivatives as a New Class of Human Aldose Reductase Inhibitors
Diabetes is a chronic metabolic disorder characterized by insufficient insulin production, the cells’ inability to use this insulin, or a combination of both, leading to secondary complications such as diabetic neuropathy and retinopathy. One way to prevent or control such complications is the use of aldose reductase (AR) inhibitors. In this work, we synth
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. NFAT5 is differentially expressed in Sprague-Dawley rat tissues in response to high salt and high fructose diets
Abstract Current diets contain an increasing amount of salt and high fructose corn syrup, but it remains unclear as to how dietary salt and fructose affect organ function at the molecular level. This study aimed to test the hypothesis that consumption of high salt and fructose diets would increase tissue-specific expression of two critical osmotically-regula
Genet. Mol. Biol.. Publicado em: 28/02/2019
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3. Self-organizing maps and VolSurf approach to predict aldose reductase inhibition by flavonoid compounds
Aldose Reductase (AR) is the polyol pathway key enzyme which converts glucose to sorbitol. High glucose availability in insulin resistant tissues in diabetes leads into an accumulation of sorbitol, which has been associated with typical chronic complications of this disease, such as neuropathy, nephropathy and retinopathy. In this study, 71 flavonoids AR inh
Revista Brasileira de Farmacognosia. Publicado em: 04/03/2011
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4. Caracterização do gene que codifica a enzima sorbitol desidrogenase em milho / Characterization of maize sorbitol dehydrogenase
A análise do banco de ESTs de endosperma de milho (MAIZEST) revelou que o gene da sorbitol desidrogenase (SDH) é o transcrito mais abundante no início do desenvolvimento da semente (aos 10 dias após a polinização - DAP). A SDH cataliza a redução NADH-dependente da frutose em sorbitol ou a oxidação do sorbitol em frutose. Em Rosaceae esta enzima tem
Publicado em: 2006
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5. Obtenção da enzima xilose redutase de Candida mogii e sua purificação em sistemas de duas fases aquosas
The obtainment, extraction and partial characterization of the enzyme xylose reductase (XR) present in cell extract of the yeast Candida mogii NRRL Y-17032 cultivated in rice straw hemicellulosic hydrolysate were studied in this work. The XR production was evaluated by varying the concentration of hydrolysate in the growth medium, and the highest values of p
Publicado em: 2002
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6. Maturation of aldose reductase expression in the neonatal rat inner medulla.
Newborns are less able to concentrate urine than adults are. With development of the concentrating system and a hypertonic medullary interstitium, there is a need to generate intracellular osmolytes such as sorbitol, which is produced in a reaction catalyzed by the enzyme aldose reductase. We sought to discriminate between two possible mechanisms of aldose r
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7. In vitro expression of rat lens aldose reductase in Escherichia coli.
Aldose reductase (alditol:NADP+ oxidoreductase, EC 1.1.1.21), an enzyme that converts glucose to sorbitol, the first step of the polyol pathway, has been implicated in secondary complications of diabetes, such as cataracts, retinopathy, neuropathy, and nephropathy. Aldose reductase inhibitors have been observed to prevent or delay the onset of these complica
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8. The linked roles of nitric oxide, aldose reductase and, (Na+,K+)-ATPase in the slowing of nerve conduction in the streptozotocin diabetic rat.
Metabolic and vascular factors have been invoked in the pathogenesis of diabetic neuropathy but their interrelationships are poorly understood. Both aldose reductase inhibitors and vasodilators improve nerve conduction velocity, blood flow, and (Na+,K+)-ATPase activity in the streptozotocin diabetic rat, implying a metabolic-vascular interaction. NADPH is an
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9. Activated and unactivated forms of human erythrocyte aldose reductase.
Aldose reductase (alditol:NADP+ 1-oxidoreductase, EC 1.1.1.21) has been partially purified from human erythrocytes by DEAE-cellulose (DE-52) column chromatography. This enzyme is activated severalfold upon incubation with 10 microM each glucose 6-phosphate, NADPH, and glucose. The activation of the enzyme was confirmed by following the oxidation of NADPH as
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10. Induction of aldose reductase and sorbitol in renal inner medullary cells by elevated extracellular NaCl.
Aldose reductase [aldehyde reductase 2; alditol:NAD(P)+ 1-oxidoreductase, EC 1.1.1.21] catalyzes conversion of glucose to sorbitol. Although its activity is implicated in the progression of ocular and neurological complications of diabetes, the normal function of the enzyme in most cells is unknown. Both aldose reductase activity and substantial levels of so
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11. NADPH-oxidising activity in lens and erythrocytes in diabetic and nondiabetic patients with cataract.
Levels of lens aldose reductase, aldehyde dehydrogenase activity, and erythrocyte NADPH-oxidising (or glyceraldehyde reductase) activity were determined in 17 diabetic and 16 nondiabetic patients undergoing cataract extraction. Lens aldose reductase and aldehyde dehydrogenase activities were significantly lower in diabetics than in nondiabetics. Both enzymes
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12. Affinity Purifications of Aldose Reductase and Xylitol Dehydrogenase from the Xylose-Fermenting Yeast Pachysolen tannophilus
Although xylose is a major product of hydrolysis of lignocellulosic materials, few yeasts are able to convert it to ethanol. In Pachysolen tannophilus, one of the few xylose-fermenting yeasts found, aldose reductase and xylitol dehydrogenase were found to be key enzymes in the metabolic pathway for xylose fermentation. This paper presents a method for the ra