211 GLUCOSE UPTAKE AND GLUCOSE TRANSPORTER-1 EXPRESSION IN HUMAN CHONDROCYTES ARE DIFFERENTIALLY REGULATED BY HIGH AND LOW GLUCOSE CONCENTRATIONS
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چکیده
منابع مشابه
Resistin modulates glucose uptake and glucose transporter-1 (GLUT-1) expression in trophoblast cells
The adipocytokine resistin impairs glucose tolerance and insulin sensitivity. Here, we examine the effect of resistin on glucose uptake in human trophoblast cells and we demonstrate that transplacental glucose transport is mediated by glucose transporter (GLUT)-1. Furthermore, we evaluate the type of signal transduction induced by resistin in GLUT-1 regulation. BeWo choriocarcinoma cells and pr...
متن کاملExpression of glucose transporter and glucose uptake in human oocytes and preimplantation embryos.
The expression of glucose transporters 1, 2, 3 and 4 was evaluated in human oocytes and polyploid preimplantation embryos. Only glucose transporter 1 (GLUT-1) isoform was detected in oocytes and in 2-12-cell stage embryos. Glucose uptake was markedly increased in embryos as compared to oocytes (19.7 +/- 3.4 pmol/min/embryo and 2.3 +/- 0.3 pmol/min/oocyte), and GLUT-1 was inhibited by cytochalas...
متن کاملGlucose transport and glucose transporter GLUT4 are regulated by product(s) of intermediary metabolism in cardiomyocytes.
Alternative substrates of energy metabolism are thought to contribute to the impairment of heart and muscle glucose utilization in insulin-resistant states. We have investigated the acute effects of substrates in isolated rat cardiomyocytes. Exposure to lactate, pyruvate, propionate, acetate, palmitate, beta-hydroxybutyrate or alpha-oxoglutarate led to the depression of glucose transport by up ...
متن کاملPlacental Glucose Transporter Expression Is Regulated
Although glucocorticoids play important roles in development and fetal programming, they are widely used for treatment of a variety of diseases during pregnancy. In various tissues, glucocorticoids downregulate glucose transport systems; however, their effects on glucose transporters in the placenta are unknown. In the present study, the glucose carrier proteins GLUT1 and GLUT3 were localized i...
متن کاملImpaired glucose transporter-1 degradation and increased glucose transport and oxidative stress in response to high glucose in chondrocytes from osteoarthritic versus normal human cartilage
INTRODUCTION Disorders that affect glucose metabolism, namely diabetes mellitus (DM), may favor the development and/or progression of osteoarthritis (OA). Thus far, little is known regarding the ability of chondrocytes to adjust to variations in the extracellular glucose concentration, resulting from hypoglycemia and hyperglycemia episodes, and so, to avoid deleterious effects resulting from de...
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ژورنال
عنوان ژورنال: Osteoarthritis and Cartilage
سال: 2007
ISSN: 1063-4584
DOI: 10.1016/s1063-4584(07)61844-5