[Immunohistochemical study of CART-peptide in striato-nigral projections at dopamine loss]

Autor: I V, Romanova, A Iu, Chesnokova, A L, Mikhrina
Rok vydání: 2012
Předmět:
Zdroj: Rossiiskii fiziologicheskii zhurnal imeni I.M. Sechenova. 98(8)
ISSN: 0869-8139
Popis: The increase of CART-peptide optical density was found immunohistochemically in nucleus accumbens neurons and in their terminals in substantia nigra in Wistar rats after 28% reduction of dopaminergic neurons in a substantia nigra (in the model of lactacystin induced proteo some disfunction). At the same time after in vitro incubation of nigro-accumbal brain slice with AMPT (alpha-methyl-paratirosine--dopamine inhibitor) for 4 h the reduction of tyrosine hydroxylase optical density (the enzyme limiting dopamine synthesis) in substantia nigr neurons was found and optical density of CART-peptide in nucleus accumbens and substantia nigra was also revealed. In both experiments data about activation of CARTergic neurons in stria to-nigral projections testifies on participation of CART-peptide in compensatory brain mechanisms at dopamine loss and its role as modulator of dopaminergic brain neurons functional activity.
Databáze: OpenAIRE