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- Title
Disturbance of oxidative metabolism of glucose in recent human cerebral infarcts.
- Authors
Wise, Richard J. S.; Rhodes, Christopher G.; Gibbs, Jeremy M.; Hatazawa, Jun; Palmer, Tony; Frackowiak, Richard S. J.; Jones, Terry; Wise, R J; Rhodes, C G; Gibbs, J M; Hatazawa, J; Palmer, T; Frackowiak, R S; Jones, T
- Abstract
Eight patients with recent cerebral hemispheric infarction were studied with positron emission tomography and the oxygen-15 steady-state inhalation and [18F]deoxyglucose techniques to obtain values of regional cerebral blood flow, oxygen consumption, and glucose metabolism. The Sokoloff equation, used to calculate glucose metabolism, was simplified to exclude the exponential terms containing the rate constants. A value of the lumped constant quoted for normal brain (0.42) was used for infarcted regions and contralateral hemisphere. Mean regional cerebral blood flow, oxygen consumption, and glucose metabolism were all significantly depressed within the infarcts compared with the mirror regions in the contralateral cerebral hemisphere. The mean fractional extraction of oxygen was low, indicating an adequate supply of oxygen for residual oxidative metabolism. Regional oxygen consumption and glucose metabolism were significantly correlated within the infarcts, but with a relationship of 2 moles of oxygen per mole of glucose--one-third that in the contralateral hemisphere and in normal brain. Although these results suggest that the metabolizing tissue of a recent cerebral infarct utilizes aerobic glycolysis, caution about the validity of this pathophysiological observation is dictated by limitations in current positron emission tomographic tracer methodology.
- Subjects
BRAIN metabolism; GLUCOSE metabolism; OXYGEN metabolism; CEREBRAL circulation; COMPARATIVE studies; DEOXY sugars; ENERGY metabolism; INFARCTION; RESEARCH methodology; MEDICAL cooperation; RADIOISOTOPES; RADIOPHARMACEUTICALS; RESEARCH; POSITRON emission tomography; EVALUATION research; OXYGEN consumption
- Publication
Annals of Neurology, 1983, Vol 14, Issue 6, p627
- ISSN
0364-5134
- Publication type
journal article
- DOI
10.1002/ana.410140605