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STUDIES ON INTRATEIECAI, PHARMACOTHERAPY:CDP-CHOLINE Motohide Ogashiwa 1 , Kazuo Takeuchi 1 , Mitsuhiro Hara 1 , Yasuakira Tanaka 1 , Junichiro Okada 1 1Department of Neurosurgery, Kyorin University School of Medicine pp.1181-1187
Published Date 1974/12/1
DOI https://doi.org/10.11477/mf.1406203632

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  • Abstract
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Seven cases showing disturbance of consciousnessdue to primary cerebral lesion were treated byintrathecal injection of CDP-choline. They included3 cases of severe head injury, 3 of ruptured intra-cranial aneurysm with vasospasm and one of sub-acute encephalitis. A dose of 125 or 250 mg ofCDP-choline was injected by lumbar puncture andthe EEG was recorded continuously.

The effect of intrathecal application of CDP-choline can be divided into two types, an immediateeffect appearing within two hours after injectionof CDP-choline, and a late effect which manifestsafter a day or more. Appearance of manifestations,such as yawning, opening the eyes and reactionto noxious stimuli, and improvement in EEG wereobserved as the immediate effect.

The late effect was composed of improvement ofneurological findings and the grade of EEG. Ina case with nearly flat EEG, appearence of theelectrical activity was denoted 2 days after theintrathecal injection of CDP-choline.

An experimental study using the technique ofwhole body autoradiography was carried out in therat. Absence of 14C-CDP-choline in the centralnervous system with intravenous application ofCDP-choline was found, and this fact indicates thatno CDP-choline was taken up by the central nerv-ous system via the blood-brain-barrier. On theother hand, a marked increase in radioactivity wasfound in the brain and the spinal cord one hourafter the intrathecal injection of 14C-CDP-choline.

In conclusion, it can be said that when CDP-choline is injected into the intrathecal space, it istaken up the brain tissue via the liquor-brain-barrierand produces a direct stimulating effect on thecentral nervous system.


Copyright © 1974, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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