Disturbance of oxidative metabolism of glucose in recent human cerebral infarcts.

Détails

ID Serval
serval:BIB_BDFAD47D5459
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Disturbance of oxidative metabolism of glucose in recent human cerebral infarcts.
Périodique
Annals of Neurology
Auteur(s)
Wise R.J., Rhodes C.G., Gibbs J.M., Hatazawa J., Palmer T., Frackowiak R.S., Jones T.
ISSN
0364-5134 (Print)
ISSN-L
0364-5134
Statut éditorial
Publié
Date de publication
1983
Volume
14
Numéro
6
Pages
627-637
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't Publication Status: ppublish
Résumé
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.
Mots-clé
Adult, Aged, Brain/metabolism, Cerebral Infarction/metabolism, Cerebral Infarction/physiopathology, Cerebrovascular Circulation, Deoxyglucose/analogs & derivatives, Deoxyglucose/diagnostic use, Energy Metabolism, Female, Fluorodeoxyglucose F18, Glucose/metabolism, Humans, Male, Middle Aged, Oxygen/metabolism, Oxygen Consumption, Oxygen Radioisotopes/diagnostic use, Tomography, Emission-Computed
Pubmed
Web of science
Création de la notice
09/10/2011 18:44
Dernière modification de la notice
03/03/2018 20:59
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