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- W2023347036 abstract "In order to evaluate the efficacy of glial cell line-derived neurotrophic factor (GDNF) in a model of advanced Parkinson's disease, we studied rats with extensive bilateral lesions of the nigrostriatal pathway. Adult male F344 rats were injected bilaterally into the medial forebrain bundle with the neurotoxin 6-hydroxydopamine. Locomotor ability as measured by total distance traveled in an open field over 20 min, as well as von Frey hair testing of sensorimotor neglect, was monitored weekly. Rats demonstrating severe motor impairment and sensorimotor neglect were used for this study and were sorted to achieve similar average behavioral scores between the two treatment groups. After 2 weeks of pretesting, the rats received 250 μg GDNF or vehicle injected into the right lateral cerebral ventricle. Three weeks later, an additional 500 μg GDNF or vehicle was injected into the contralateral ventricle. The rats were monitored for another 2 weeks prior to sacrifice. Behavioral results indicated that von Frey hair scores were inconsistent between tests for each rat and were unchanged following GDNF treatment. However, GDNF recipients demonstrated significant improvement in locomotor ability compared to vehicle recipients. High-pressure liquid chromatography-electrochemical detection analysis of neurotransmitter levels revealed a significant increase in dopamine content within the substantia nigra and ventral tegmenta, but not the striata, of GDNF-treated rats. Further, immunohistochemical staining of tissues from matched pairs of rats revealed increased numbers of tyrosine hydroxylase-positive ventral mesencephalic neurons in one of the two pairs of rats examined. These results suggest that intracerebroventricular GDNF administration improves motor ability and supports nigrostriatal dopaminergic neurons in a model of severe Parkinson's disease." @default.
- W2023347036 created "2016-06-24" @default.
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- W2023347036 date "1997-05-01" @default.
- W2023347036 modified "2023-09-25" @default.
- W2023347036 title "Intracerebroventricular Glial Cell Line-Derived Neurotrophic Factor Improves Motor Function and Supports Nigrostriatal Dopamine Neurons in Bilaterally 6-Hydroxydopamine Lesioned Rats" @default.
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- W2023347036 doi "https://doi.org/10.1006/exnr.1997.6436" @default.
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