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KMID : 0360419790150010007
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Korean Journal of Pharmacology
1979 Volume.15 No. 1 p.7 ~ p.12
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Sympathetic Activity in the Pressor Response in Raised Intracranial Pressure
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Abstract
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Employing clonidine, phenoxybenzamine, and phentolamine, the author attempted to clarify the mechanism of the pressor response in raised intracranial pressure (ICP) in urethaneanesthetized rabbits. Intravenous clonidine inhibited the pressor response in raised ICP as intraventricular (I.V.T ) clcnidine did. Intravenous phenoxybenzamine and phentolamine weakened markedly the pressor response in raised ICP I.V.T. phenoxybenzamine did not affect the pressor response as I.V.T. phentolamine. I.V.T. phenoxybenzamine antagonized the inhibitory effect of I.V.T. clonidine on the pressor response as I.V.T. phentolamine. It is concluded that the central and peripheral sympathetic activity plays an important role in producing the pressor response in raised ICP.
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