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- W2051229659 abstract "A cell suspension of substantia nigra from fetal rats was introduced into the ipsilateral caudate nucleus of rats with unilateral lesions in the nigrostriatal dopamine pathway, and effects of bovine total ganglioside (tGS) and monosialoganglioside (GM1) treatment on the morphological features of the transplanted cells and recovery from motor imbalance (rotation induced by methamphetamine) were investigated. Gangliosides (30 mg/kg) were administered intraperitoneally once a day for 2 weeks after transpantation to test animals while control animals received saline alone. tGS animals showed definite motor recovery in the 2nd week (P<0.05) while control and GM1 animals exhibited slight recovery only. At 6 weeks after transplantation, motor imbalance disappeared in all 3 groups. Trosine hydroxylase (TH) immunocytochemical staining revealed that in the 2nd week TH-positive cells in tGS animals had more primary dendrites and more large neurites (meganeurites) than did controls. TH-positive cells of all 3 groups often had spiny processes at that time. In the 20th week, TH-positive cells became more multigonal and had wider dendritic fields in all groups, and had less meganeurites and spines. Motor recovery of each animal was dependent on the number of TH-positive cells and no significant difference was observed in the number of TH-positive cells among the three groups. tGS treatment for 2 weeks without grafting induced immunohistologically no axonal sprouting in the substantia nigra, medial forebrain bundle, accumbens and caudate nucleus when the chemical lesions were complete. Data suggest that tGS induces hypertrophy but not hyperplasia of the transplanted nigral cells, and increases the morphological plasticity. This might be the basis for promotion of recovery in motor function after transplantation." @default.
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- W2051229659 date "1990-11-01" @default.
- W2051229659 modified "2023-09-25" @default.
- W2051229659 title "tGS ganglioside induces peculiar morphological features in grafted dopaminergic cells and promotes motor recovery in rats with unilateral lesions in the nigrostriatal dopamine pathway" @default.
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- W2051229659 doi "https://doi.org/10.1016/0006-8993(90)90114-q" @default.
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