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Behavioral and Histochemical Observation in Rotational Rat with Adrenal Medulla Transplantation : Comparison of Two Different Graft Sites (Striatum v.s. Lateral Ventricle) Ryuichiro Torigoe 1 , Takashi Hayashi 1 , Shigetaka Anegawa 1 , Katsuyasu Ohtsuru 2 , Masashi Yoshida 2 1Department of Neurosurgery, Institute of Neurosciences, St. Mary's Hospital 2Department of Neurosurgery, Kurume University School of Medicine Keyword: transplantation , adrenal medulla , optimal sites pp.343-349
Published Date 1991/4/1
DOI https://doi.org/10.11477/mf.1406900183

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  • Abstract
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Effect of adrenal medullary allograft to two different sites of the brain (striatum and lateral ventricle) was compared on rotation rat. Rotation rats were prepared by chemical ablation of the right nigro-striatal system by 6-hydroxy-dopamine (6-OHDA) . In this experiment, adrenal medulla was transplated to the rotation rat brain and effects of the transplantation was evaluated by behavioral change of the rats, i. e., reduction in rotation behav-ior, and by histochemical examination of the grafts sites, i. e., presence and morphology of dopaminer-gic cells.

The animals were divided in to 2 groups. The first group received the graft to the striatum (striatum group) and the second group to the lateral ventricle close to the striatum (ventricle group) . Six weeks after grafting, the rotation behavior in striatum group and ventricle group was reduced by 43 % (p<0.01) and 35 % (p<0.01) respectively as compared to that in the pretransplantation state. Twelveweeks after grafting, the comparable figures were 30 % (p<0.05) and 17 % (n.s.) respectively. Histo-chemical examination of graft site was similar in both groups : Six weeks after grafting, many trans-planted cells transformed into nerve cells which were considered to be capable of producing dopamine and, twelve weeks after grafting, honey-comb shaped fluorescence positive area withoutapparent viable cells.

From above results, it was concluded that the striatum was somewhat superior to the lateral ven-tricle as the graft site. However, the effect of the transplantation was short lasting, being most mani-fest at six weeks after transplantation, and started to wear off as the grafted cells perished.


Copyright © 1991, 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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