Chronic -DOPA treatment increases striatal cannabinoid CB1 receptor mRNA expression in 6-hydroxydopamine-lesioned rats

Carla Cannizzaro, Jenner, Tel, Cannizzaro, Dass, Zeng, Owen, Rose

Risultato della ricerca: Articlepeer review

64 Citazioni (Scopus)

Abstract

The effect of a unilateral 6-hydroxydopamine (6-OHDA) lesion of the left medial forebrain bundle and 3 weeks treatment with -DOPA of normal and 6-OHDA lesioned rats on CB1r mRNA expression was investigated by in situ hybridization. A 6-OHDA lesion of nigrostriatal pathway alone, confirmed by the loss of nigral tyrosine hydroxylase mRNA, did not alter CB1r mRNA levels in the dopamine depleted striatum. Similarly, chronic -DOPA treatment of normal rats had no effect on striatal CB1r mRNA expression. In contrast, chronic -DOPA treatment of 6-OHDA-lesioned rats significantly increased CB1r mRNA expression in the denervated striatum. These results suggest that the CB1r activity may be altered by -DOPA's action and this may be related to the treatment of Parkinson's disease.
Lingua originaleEnglish
pagine (da-a)71-74
Numero di pagine4
RivistaNeuroscience Letters
Volume276
Stato di pubblicazionePublished - 1999

All Science Journal Classification (ASJC) codes

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