Neurotoxine und Neuroprotektion: Bedeutung radikalischer Mechanismen und der Atmungsketteninhibition fuer die Aetiologie des Parkinsonsyndroms, der Neurodegeneration und des Alterungsprozesses Schlussbericht

Abstract

There are no animal models for the investigation of the causes and progression of neurodegenerative diseases - such as Parkinson's Disease -suitable for searching out the pathological mechanisms which may elicit and maintain a progressive disease process. Up till now only a few of the factors that might contribute to the multiactorial pathogenesis of Parkinson's Disease have been established. A large-scale depolyment of non-human primates could not be considered. Rats, subjected to oxidative stress, exhibit a gradually developing assortment of pathological symptoms which strikingly involve the mediation of the dopaminergic system. The pathological symptoms are susceptible to therapeutic interventions. The animals undergo various stages of a set of pathological symptoms which manifests itself among others in a reluctance to undertake changes of rapid motor strategies. They exhibit a diminished ability to learn and to pay attention. Brain regions where such lesions may be elicited are highly specific. At an advanced age, the consequency of oxidative stress show a loss of the D1 mRNA in the dorsal statum without concomitant cell loss. (orig.)Available from TIB Hannover: F99B1195 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEBundesministerium fuer Bildung und Forschung (BMBF), Bonn (Germany)DEGerman