A METHOD TO QUANTIFY GLUCOSE-UTILIZATION INVIVO IN SKELETAL-MUSCLE AND WHITE ADIPOSE-TISSUE OF THE ANESTHETIZED RAT
A METHOD TO QUANTIFY GLUCOSE-UTILIZATION INVIVO IN SKELETAL-MUSCLE AND WHITE ADIPOSE-TISSUE OF THE ANESTHETIZED RAT
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DOI:
10.1042/bj2280103
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发表时间:
1985-01-01
影响因子:
4.1
通讯作者:
GIRARD, J
中科院分区:
文献类型:
--
作者:
FERRE, P;LETURQUE, A;GIRARD, J
A quantitative method allowing determination of glucose metabolism in vivo in muscles and white adipose tissue of the anesthetized rat is presented. A tracer dose of 2-deoxy[3H]glucose was injected i.v. in an anesthetized rat and the concentration of 2-deoxy[3H]glucose was monitored in arterial blood. After 30-80 min, 3 muscles, the soleus, the extensor digitorum longus and the epitrochlearis, periovarian white adipose tissue and brain were sampled and analyzed for their content of 2-deoxy[3H]glucose 6-phosphate. This content could be related to glucose utilization during the same time period, since the integral of the decrease of 2-deoxy[3H]glucose in arterial blood was known and correction factors for the analogue effect of 2-deoxyglucose compared with glucose in the transport and phosphorylation steps were determined from experiments in vitro. Glucose utilization was then measured by this technique in the tissues of post-absorptive rats in the basal state (0.1 munit of insulin/ml of plasma) or during euglycemic-hyperinsulinemic glucose clamp (8 munits of insulin/ml of plasma) and of 48 h-starved rats. Results corresponded qualitatively and quantitatively to the known physiological characteristics of the tissues studied.