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Experimental Physiology 78.5 pp 707-710
© The Physiological Society 1993
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Experimental Physiology, Vol 78, Issue 5, 707-710
Copyright © 1993 by The Physiological Society

Article

Sound stimulation increases the cerebral glucose:oxygen quotient in the fetal sheep

CR Chao, PG Glenford, EJ Karibo, and SD Salha

We sought to determine the cerebral metabolic fate of glucose during sound stimulation in near-term fetal sheep. Blood oxygen content was significantly decreased by 6-7% during sound stimulation. The cerebral glucose:oxygen quotient increased from 0.88 +/- 0.08 to 1.13 +/- 0.12 (mean +/- S.E.M., P < 0.01). This is consistent with the phenomenon of stimulated glycolysis which has been shown to increase brain lactate concentration in other models.




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Copyright © 1993 by the The Physiological Society.