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Título: | Insulin-like growth factor I restores motor coordination in a rat model of cerebellar ataxia |
Autor: | Fernández, A. M.; González de la Vega, Alberto CSIC; Torres Alemán, Ignacio CSIC ORCID | Palabras clave: | Cerebellar ataxia Motor Rats | Fecha de publicación: | 1998 | Editor: | National Academy of Sciences (U.S.) | Citación: | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 95: 1253- 1258 (1998) | Resumen: | We tested the potential of insulin-like growth factor I (IGF-I) to induce functional recovery in an animal model of cerebellar ataxia because this motor impairment is accompanied in humans and rodents by distinct changes in several components of the IGF-I trophic system. Rats rendered ataxic by deafferentation of the cerebellar cortex with 3-acetylpyridine recovered motor function after IGF-I was administered, as determined by behavioral and electrophysiological tests. When treated with IGF-I, inferior olive neurons, the targets of the neurotoxin, were rescued to various degrees (from 92 to 27% of surviving neurons), depending on the time that treatment with IGF-I was initiated. Furthermore, full recovery was obtained regardless of the route by which the trophic factor was administered (intraventricular or subcutaneous) even in motor with severe neuronal loss. These results suggest that human ataxia could be treated with IGF-I by a simple procedure. | URI: | http://hdl.handle.net/10261/153997 | DOI: | 10.1073/pnas.95.3.1253 | Identificadores: | doi: 10.1073/pnas.95.3.1253 issn: 0027-8424 |
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