M T Hegemann

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Norepinephrine (NE) was assayed in rat brains 72 h after the creation of an experimental subarachnoid hemorrhage (SAH). NE in the cerebral hemispheres was found to increase by 64% when compared to controls. NE in the brainstem and cerebellum was unchanged. The kinetics of hemispheric NE metabolism were then studied in control and SAH rats. SAH caused a(More)
Regional brain tissue catecholamine concentrations were measured in 5 control rats and in 10 rats 72 hours after experimental subarachnoid hemorrhage (SAH). Catecholamine levels were determined in the cerebral hemispheres, brain stem, and cerebellum of each animal using a radioenzymatic assay. Three days after SAH, the tissue concentration of norepinephrine(More)
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