glucose 6 phosphatase/hypoxia

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Enhanced trimethylation of histone h3 mediates impaired expression of hepatic glucose 6-phosphatase expression in offspring from rat dams exposed to hypoxia during pregnancy.

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Given that hepatic glucose 6-phosphatase (G6Pase, involved in gluconeogenesis) has been demonstrated to be altered long term in animal models of intrauterine growth restriction (IUGR), we hypothesized that hypoxia in utero may regulate G6Pase expression via epigenetic mechanisms. To address this

Effect of hypoxia and ischemia on the activity of glucose 6-phosphatase in the guinea-pig brain.

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Effect of hypoxia and ischemia on the distribution of protein in brain cellular fractions.

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The effect of postdecapitative ischemia (5 min at 37 degrees) and hypoxia (5% O2, 95% N2, 30 min) on the distribution of protein radioactivity in the cellular fractions of guinea pig cerebral cortex was studied. Ischemic conditions resulted in the increase of total radioactivity level and protein

Effect of hypoxemia on tissue glycogen content and glycolytic enzyme activities in fetal sheep.

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We have tested the hypothesis that prolonged fetal hypoxemia causes a reduction in glycogenolytic enzyme activities and/or a depletion of fetal glycogen stores. We compared the effects of short (4 h) and prolonged (24 h) periods of reduced maternal uterine blood flow (RUBF) on glycogen content and

Plasma concentrations of glucose, corticosterone, glucagon and insulin and liver content of metabolic substrates and enzymes during starvation and additional hypoxia in the rat.

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The plasma levels of corticosterone, insulin and glucagon, and the concomitant changes in the levels of several liver enzymes and metabolites were measured in intact rats in the basal state during 24 hours and under conditions of food deprivation and hypoxia. The levels of the following enzymes and

von Hippel Lindau tumor suppressor regulates hepatic glucose metabolism by controlling expression of glucose transporter 2 and glucose 6-phosphatase.

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von Hippel Lindau (VHL) disease is a hereditary cancer syndrome caused by biallelic inactivation of the VHL tumor suppressor gene. The most widely known function of VHL is to limit normoxic protein expression of hypoxia-inducible factor-alpha (HIF-alpha). Loss of the functional VHL gene causes

Maternal hypoxia increases the susceptibility of adult rat male offspring to high-fat diet-induced nonalcoholic fatty liver disease.

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Exposure to an adverse intrauterine environment increases the risk for adult metabolic syndrome. However, the influence of prenatal hypoxia on the risk of fatty liver disease in offspring is unclear. The purpose of the present study was to evaluate the role of reduced fetal oxygen on the development

Correlation of metabolism/hypoxia markers and fluorodeoxyglucose uptake in oral squamous cell carcinomas.

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OBJECTIVE The objective of this study was to analyze the relationship between the uptake of (18)F-2-fluoro-2-deoxy-d-glucose (FDG) by positron emission tomography-computerized tomography (PET-CT) and glucose metabolism/hypoxia markers in oral squamous cell carcinoma (OSCC). METHODS Thirty-six

Glucotoxicity induces glucose-6-phosphatase catalytic unit expression by acting on the interaction of HIF-1α with CREB-binding protein.

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The activation of glucose-6-phosphatase (G6Pase), a key enzyme of endogenous glucose production, is correlated with type 2 diabetes. Type 2 diabetes is characterized by sustained hyperglycemia leading to glucotoxicity. We investigated whether glucotoxicity mechanisms control the expression of the

[Activity of gluconeogenetic enzymes of rat kidney cortex during acute hypoxia].

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The activities of gluconeogenic enzymes of the rat kidney cortex was studied after exposure to lowered atmospheric pressure (200 mm Hg) for 3 hours. The hypoxic stress was found to cause an increase in the activities of phosphoenolpyruvate carboxykinase and alanine aminotransferase, but failed to

Evidence for transcriptional regulation of the glucose-6-phosphate transporter by HIF-1alpha: Targeting G6PT with mumbaistatin analogs in hypoxic mesenchymal stromal cells.

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Mesenchymal stromal cell (MSC) markers are expressed on brain tumor-initiating cells involved in the development of hypoxic glioblastoma. Given that MSCs can survive hypoxia and that the glucose-6-phosphate transporter (G6PT) provides metabolic control that contributes to MSC mobilization and

Effects on intermediary metabolism in mouse tissues by Ro-03-8799.

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Glucose and lipid metabolism in the brain, liver and in a transplanted tumour were found to be variously altered within 2 to 3 h of administering single doses of the radiosensitizer Ro-03-8799 to normal and tumour-bearing mice. Hepatic lactate and glycerol-3-phosphate (G3P) levels were decreased but

PCBP2 regulates hepatic insulin sensitivity via HIF-1α and STAT3 pathway in HepG2 cells.

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Elevated free fatty acids (FFAs) are fundamental to the pathogenesis of hepatic insulin resistance. However, the molecular mechanisms of insulin resistance remain not completely understood. Transcriptional dysregulation, post-transcriptional modifications and protein degradation contribute to the

Disruption of the Arnt gene in endothelial cells causes hepatic vascular defects and partial embryonic lethality in mice.

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Vascular endothelial cells (ECs) play a critical role in angiogenesis and organogenesis, especially in embryonic liver development. Hypoxia-inducible transcription factors (Hifs) are a key trigger of hypoxic signals, a primary stimulus of angiogenesis. The aryl hydrocarbon receptor nuclear

The antiglycogenolytic action of 1-deoxynojirimycin results from a specific inhibition of the alpha-1,6-glucosidase activity of the debranching enzyme.

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The glucose analogue 1-deoxynojirimycin (dNOJ) and some of its N-substituted derivatives have recently been described as potent inhibitors of the hepatic glycogenolysis induced by glucagon, Ca2+ ionophores or anoxia. The inhibition increased with time, in spite of a persistently high level of

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