http://www.cnr.it/ontology/cnr/individuo/prodotto/ID38799
Behavioral, Neurochemical, and Electrophysiological Changes in an Early Spontaneous Mouse Model of Nigrostriatal Degeneration (Articolo in rivista)
- Type
- Label
- Behavioral, Neurochemical, and Electrophysiological Changes in an Early Spontaneous Mouse Model of Nigrostriatal Degeneration (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1007/s12640-010-9232-9 (literal)
- Alternative label
Sgado, Paola; Viaggi, Cristina; Pinna, Annalisa; Marrone, Cristina; Vaglini, Francesca; Pontis, Silvia; Mercuri, Nicola Biagio; Morelli, Micaela; Corsini, Giovanni Umberto (2011)
Behavioral, Neurochemical, and Electrophysiological Changes in an Early Spontaneous Mouse Model of Nigrostriatal Degeneration
in Neurotoxicity resarch
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Sgado, Paola; Viaggi, Cristina; Pinna, Annalisa; Marrone, Cristina; Vaglini, Francesca; Pontis, Silvia; Mercuri, Nicola Biagio; Morelli, Micaela; Corsini, Giovanni Umberto (literal)
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- ISI Web of Science (WoS) (literal)
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- University of Trento; University of Pisa; CNR Inst Neurosci; University of Cagliari; Fdn Santa Lucia IRCCS (literal)
- Titolo
- Behavioral, Neurochemical, and Electrophysiological Changes in an Early Spontaneous Mouse Model of Nigrostriatal Degeneration (literal)
- Abstract
- In idiopathic Parkinson's disease, clinical symptoms do not emerge until consistent neurodegeneration has occurred. The late appearance of symptoms implies the existence of a relatively long preclinical period during which several disease-induced neurochemical changes take place to mask the existence of the disease and delay its clinical manifestations. The aim of this study was to examine the neurochemical, neurophysiological, and behavioral changes induced by the loss of nigrostriatal innervation in the En1+/-;En2-/- mouse, in the 10 months following degeneration, compared to En2 null mutant mice. Behavioral analysis (Pole-test, Beam-walking test, and Inverted grid test) and field potential recordings in the striatum indicated that loss of similar to 70% of nigrostriatal neurons produced no significant functional effects until 8 months of age, when En1+/-;En2-/- animals started to show frank motor deficits and electrophysiological alterations in corticostriatal plasticity. Similarly, alterations in dopamine homeostasis, dopamine turnover, and dopamine innervation were observed in aged animals compared to young En1+/-;En2-/- mice. These data suggests that in En1+/-;En2-/- mice nigrostriatal degeneration in the substantia nigra is functionally compensated. (literal)
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