Noninvasive NMR spectroscopy of 1H, 31P, and 23Na is performed simultaneously to study brain metabolism during grand mal seizures. Decreases in PCr and increases in lactate associated with seizure as well as an intracellular shift of the Na+ ion pool are demonstrated. A close correlation between the phosphate potential and the intensity of the seizure, as well as the intra/extracellular ionic gradient, is shown.
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Schnall et al. (1988) studied this question.
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