نتایج جستجو برای: polyol process
تعداد نتایج: 1313712 فیلتر نتایج به سال:
We tested the hypothesis that the apoptosis of inner retina neurons and increased expression of glial fibrillary acidic protein (GFAP) observed in the rat after a short duration of diabetes are mediated by polyol pathway activity. Rats with 10 weeks of streptozotocin-induced diabetes and GHb levels of 16 +/- 2% (mean +/- SD) showed increased retinal levels of sorbitol and fructose, attenuation ...
Sugar alcohols (polyols) are used in food manufacturing and in medical tests and examinations. d-Glucitol (sorbitol) and d-mannitol were previously the most common alditols used for these purposes. After the 1960s, xylitol became a common ingredient in noncariogenic confectioneries, oral hygiene products, and diabetic food. Erythritol, a polyol of the tetritol type, can be regarded as the sweet...
Six genes of the Arabidopsis thaliana monosaccharide transporter-like (MST-like) superfamily share significant homology with polyol transporter genes previously identified in plants translocating polyols (mannitol or sorbitol) in their phloem (celery [Apium graveolens], common plantain [Plantago major], or sour cherry [Prunus cerasus]). The physiological role and the functional properties of th...
Although enhanced activity of the polyol pathway has been implicated in the pathogenesis of certain complications of diabetes, evidence that aldose reductase activity and sorbitol content are increased in the characteristic tissue site of the diabetic renal lesion has been lacking. We therefore measured polyols in glomeruli isolated from control and streptozotocin-diabetic rats, and assessed wh...
The epidemic of chronic kidney disease in Nicaragua (Mesoamerican nephropathy) has been linked with recurrent dehydration. Here we tested whether recurrent dehydration may cause renal injury by activation of the polyol pathway, resulting in the generation of endogenous fructose in the kidney that might subsequently induce renal injury via metabolism by fructokinase. Wild-type and fructokinase-d...
PURPOSE Increased flux of glucose via the polyol pathway, oxidative stress and ischaemia lead to the upregulation of the aldose reductase (AR), the key enzyme of the polyol pathway. This adversely affects the organism and can in part be reduced by inhibition of the enzyme. METHODS In this study, we examined the effect of the HMG-CoA-reductase inhibitor atorvastatin on the expression of aldose...
In order to confirm the link between nonenzymatic glycation and the polyol pathway, we observed the effect of treatment with epalrestat (Ep), an aldose reductase inhibitor, on the concentration of advanced glycation end-products (AGEs) in erythrocytes from diabetic patients. We also examined the effect of the drug on erythrocyte fructose 3-phosphate (F3P), a novel metabolite that has been repor...
Previously, we reported that transgenic mice overexpressing endothelin-1 in astrocytes showed more severe neurological deficits and increased infarct after transient focal ischemia. In those studies, we also observed increased level of aldose reductase (AR), the first and rate-limiting enzyme of the polyol pathway, which has been implicated in osmotic and oxidative stress. To further understand...
A quaternary indium- and gallium-free kesterite (KS)-based compound, copper zinc tin sulfide (Cu2ZnSnS4, CZTS), has received significant attention for its potential applications in low cost and sustainable solar cells. It is well known that the reaction time, reactivity of the precursors, and types of capping ligands used during the synthesis of colloidal nanocrystals (NCs) strongly influence t...
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