Correction of diabetic alterations by glucokinase.
نویسندگان
چکیده
منابع مشابه
Correction of diabetic alterations by glucokinase.
Hyperglycemia is a common feature of diabetes mellitus. It results from a decrease in glucose utilization by the liver and peripheral tissues and an increase in hepatic glucose production. Glucose phosphorylation by glucokinase is an initial event in glucose metabolism by the liver. However, glucokinase gene expression is very low in diabetic animals. Transgenic mice expressing the P-enolpyruva...
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Hyperglycemia of diabetes is caused in part by perturbation of hepatic glucose metabolism. Hepatic glucokinase (GK) is an important regulator of glucose storage and disposal in the liver. GK levels are lowered in patients with maturity-onset diabetes of the young and in some diabetic animal models. Here, we explored the adenoviral vector-mediated overexpression of GK in a diet-induced murine mo...
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Hepatic glucose fluxes and intracellular movement of glucokinase (GK) in response to increased plasma glucose and insulin were examined in 10-wk-old, 6-h-fasted, conscious Zucker diabetic fatty (ZDF) rats and lean littermates. Under basal conditions, plasma glucose (mmol/l) and glucose turnover rate (GTR; micromol.kg(-1).min(-1)) were slightly higher in ZDF (8.4 +/- 0.3 and 53 +/- 7, respective...
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Although impairment of glucose utilization by the liver is a characteristic feature of the alloxan-diabetic rat (l-3), the metabolic site of this block is not certain. Tracer studies with C14labeled glucose, carried out in liver slices, suggest that glucose phosphorylation is the affected step (1, 3); however, there is a dearth of information concerning the enzyme system responsible for glucose...
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The monomeric enzyme GK (glucokinase) has a low affinity for glucose and, quantitatively, is largely expressed in the liver and pancreatic beta-cells, playing a key 'glucose sensing' role to regulate hepatic glucose balance and insulin secretion. Mutations of GK in man can be inactivating, to cause a form of diabetes mellitus, or activating, to lower blood glucose levels. Recently, models of GK...
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ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 1996
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.93.14.7225