The effect of the calcium antagonist nimodipine upon local cerebral glucose utilization in the rat brain |
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| Authors: | D d'Avella R Cicciarello F La Torre P Princi R P Greenberg S d'Aquino A P Caputi |
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| Institution: | 1. Division of Neurosurgery, Reggio Calabria, Institute of Oncology, Faculty of Medicine, University of Messina, Italy;2. Division of Neurosurgery, Reggio Calabria, Institute of Pharmacology Faculty of Medicine, University of Messina, Italy;3. Section of Neurosurgery, Health Sciences Ctr., University of Arizona, Tucson, USA |
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| Abstract: | The new calcium antagonist Nimodipine has been shown to have more powerful dilator action on cerebral than peripheral vessels. The effect of the drug on cerebral metabolism was studied in conscious rats using the /14C/-2-deoxyglucose quantitative autoradiographic technique. Intravenous injection of Nimodipine, 2 mcg/Kg, determined significant increases in local cerebral glucose utilization that appeared to be homogeneous in magnitude and anatomic distribution throughout the brain. This study raises the question whether Nimodipine affects brain functions by other mechanisms than an increase in cerebral blood flow. |
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