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A new method of determining the rate of glucose utilization in brain regions of individual rats has been used to measure the dose dependency of the reduction of the metabolic activity of the cerebral cortex by pentobarbital. Cerebral cortical glucose utilization is depressed to a basal level of 44% of the control rate when cerebral pentobarbital levels exceed 50 microgram per g of tissue. The major portion of this effect occurs between the cerebral pentobarbital range of 10--20 microgram per g, which can be achieved by 1/5 to 1/10 the normal anesthetic intraperitoneal dosage. If a depression of brain metabolism is responsible for the previously reported protection of the brain from ischemic damage, these data suggest a substantial reduction of brain metabolic rate is achieved in the rat at a barbiturate dosage which may be therapeutically relevant in the human after acute brain ischemia.
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L D Braun, and
E M Cornford, and
J E Cremer, and
J M Glass, and
W H Oldendorf
August 1991,
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P D Crane, and
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W H Oldendorf
January 1995,
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P D Crane, and
L D Braun, and
E M Cornford, and
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W H Oldendorf
December 1980,
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P D Crane, and
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E M Cornford, and
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W H Oldendorf
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P D Crane, and
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E M Cornford, and
J E Cremer, and
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W H Oldendorf
December 1970,
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P D Crane, and
L D Braun, and
E M Cornford, and
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W H Oldendorf
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P D Crane, and
L D Braun, and
E M Cornford, and
J E Cremer, and
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W H Oldendorf
September 1951,
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P D Crane, and
L D Braun, and
E M Cornford, and
J E Cremer, and
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W H Oldendorf
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P D Crane, and
L D Braun, and
E M Cornford, and
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W H Oldendorf
September 1986,
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P D Crane, and
L D Braun, and
E M Cornford, and
J E Cremer, and
J M Glass, and
W H Oldendorf
May 1981,
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