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2007•Annals of the New York Academy of SciencesOpen access

Neuroprotective Effects of Thymosin β4 in Experimental Models of Excitotoxicity

Patrizia Popoli, Rita Pepponi, Alberto Martire, Monica Armida, Antonella Pèzzola, Mariangela Galluzzo, Maria Rosaria Domenici, Rosa Luisa Potenza, Maria Teresa Tebano, Cristiana Mollinari, Daniela Merlo, Enrico Garaci

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Abstract

The aim of this study was to evaluate the possible neuroprotective effects of thymosin beta(4) in different models of excitotoxicity. The application of thymosin beta(4) significantly attenuated glutamate-induced toxicity both in primary cultures of cortical neurons and in rat hippocampal slices. In in vivo experiments, the intracerebroventricular administration of thymosin beta(4) significantly reduced hippocampal neuronal loss induced by kainic acid. These results show that thymosin beta(4) induced a protective effect in models of excitotoxicity. The mechanisms underlying such an effect, as well as the real neuroprotective potential of thymosin beta(4), are worthy of further investigations.

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What this paper is about

The aim of this study was to evaluate the possible neuroprotective effects of thymosin beta(4) in different models of excitotoxicity. The application of thymosin beta(4) significantly attenuated glutamate-induced toxicity both in primary cultures of cortical neurons and in rat hippocampal slices. In in vivo experiments, the intracerebroventricular administration of thymosin beta(4) significantly reduced hippocampal neuronal loss induced by kainic acid. These results show that thymosin beta(4) induced a protective effect in models of excitotoxicity. The mechanisms underlying such an effect, as well as the real neuroprotective potential of thymosin beta(4), are worthy of further investigations.

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Available abstract

The aim of this study was to evaluate the possible neuroprotective effects of thymosin beta(4) in different models of excitotoxicity. The application of thymosin beta(4) significantly attenuated glutamate-induced toxicity both in primary cultures of cortical neurons and in rat hippocampal slices. In in vivo experiments, the intracerebroventricular administration of thymosin beta(4) significantly reduced hippocampal neuronal loss induced by kainic acid. These results show that thymosin beta(4) induced a protective effect in models of excitotoxicity. The mechanisms underlying such an effect, as well as the real neuroprotective potential of thymosin beta(4), are worthy of further investigations.

Key concepts: Excitotoxicity, Neuroprotection, Thymosin, Kainic acid, Hippocampal formation, Glutamate receptor, Pharmacology, Chemistry

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