Administration of L-dopa (L-3,4-dihydroxyphenylalanine) (200 mg/kg p.o.) to rats produced elevated plasma and muscle concentrations of both L-dopa and 3-O-methyldopa (3-OMD). This effect was potentiated by simultaneous administration of carbidopa (25 mg/kg p.o.). Both L-dopa and 3-OMD accumulated in
The effects of 6-hydroxydopamine pretreatment on the accumulation of dopa and dopamine in brain and peripheral organs following l-dopa administration
β Scribed by L. D. Lytle; O. Hurko; J. A. Romero; K. Cottman; D. Leehey; R. J. Wurtman
- Publisher
- Springer
- Year
- 1972
- Tongue
- English
- Weight
- 517 KB
- Volume
- 33
- Category
- Article
- ISSN
- 1435-1463
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Normal rats and those pretreated with reserpine or cr were given L-DOPA alone or with extracerebral decarboxylase inhibitor (Ro 4-4602). l~otility was measured at two different time intervals and the brain levels of noradrenaline (NA) and dopamine (DA) were subsequently determined. No simple correl
L-DOPA provides the most potent medication to treat Parkinson's disease, and such systemic treatment is usually combined with a peripheral amino acid decarboxylase inhibitor to amplify its central effectiveness. Since L-DOPA can lose its efficacy or can lead to adverse effects with prolonged applica
## Abstract Ever since the introduction of levoβ3, 4βdihydroxyphenylalanine (Lβdopa) for the treatment of Parkinson's disease, there has been concern that it might accelerate the degeneration of dopamine neurones. Using rats with a unilateral 6βhydroxydopamine (6βOHDA) lesion of the medial forebrai