Artigo Acesso aberto Revisado por pares

Striatal kinetics of [11C]-(+)-nomifensine and 6-[18F]fluoro-L-dopa in Parkinson's disease measured with positron emission tomography

2009; Wiley; Volume: 81; Issue: 1 Linguagem: Inglês

10.1111/j.1600-0404.1990.tb00926.x

ISSN

1600-0404

Autores

Joakim Tedroff, Sten‐Magnus Aquilonius, A. Laihinen, U. K. Rinne, Per Hartvig, Jesper Andersson, Hans Lundqvist, Merja Haaparanta‐Solin, Olof Solin, Gunnar Antoni, Antony D. Gee, Johan Ulin, Bengt Långström,

Tópico(s)

Neuroscience and Neuropharmacology Research

Resumo

Acta Neurologica ScandinavicaVolume 81, Issue 1 p. 24-30 Striatal kinetics of [11C]-(+)-nomifensine and 6-[18F]fluoro-L-dopa in Parkinson's disease measured with positron emission tomography J. Tedroff, Corresponding Author J. Tedroff Department of Neurology, Uppsala University, SwedenJ. Tedroff, Department of Neurology, University Hospital, Uppsala, SwedenSearch for more papers by this authorS.-M. Aquilonius, S.-M. Aquilonius Department of Neurology, Uppsala University, SwedenSearch for more papers by this authorA. Laihinen, A. Laihinen Department of Neurology, University of Turku, FinlandSearch for more papers by this authorU. Rinne, U. Rinne Department of Neurology, University of Turku, FinlandSearch for more papers by this authorP. Hartvig, P. Hartvig Department of Hospital Pharmacy, University Hospital, Uppsala University, SwedenSearch for more papers by this authorJ. Andersson, J. Andersson Department of Radiation Sciences, Uppsala University, SwedenSearch for more papers by this authorH. Lundqvist, H. Lundqvist Department of Svedberg Laboratory, Uppsala University, SwedenSearch for more papers by this authorM. Haaparanta, M. Haaparanta Department of Medical Cyclotron Laboratory, University of Turku, FinlandSearch for more papers by this authorO. Solin, O. Solin Department of Medical Cyclotron Laboratory, University of Turku, FinlandSearch for more papers by this authorG. Antoni, G. Antoni Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorA. D. Gee, A. D. Gee Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorJ. Ulin, J. Ulin Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorB. Långström, B. Långström Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this author J. Tedroff, Corresponding Author J. Tedroff Department of Neurology, Uppsala University, SwedenJ. Tedroff, Department of Neurology, University Hospital, Uppsala, SwedenSearch for more papers by this authorS.-M. Aquilonius, S.-M. Aquilonius Department of Neurology, Uppsala University, SwedenSearch for more papers by this authorA. Laihinen, A. Laihinen Department of Neurology, University of Turku, FinlandSearch for more papers by this authorU. Rinne, U. Rinne Department of Neurology, University of Turku, FinlandSearch for more papers by this authorP. Hartvig, P. Hartvig Department of Hospital Pharmacy, University Hospital, Uppsala University, SwedenSearch for more papers by this authorJ. Andersson, J. Andersson Department of Radiation Sciences, Uppsala University, SwedenSearch for more papers by this authorH. Lundqvist, H. Lundqvist Department of Svedberg Laboratory, Uppsala University, SwedenSearch for more papers by this authorM. Haaparanta, M. Haaparanta Department of Medical Cyclotron Laboratory, University of Turku, FinlandSearch for more papers by this authorO. Solin, O. Solin Department of Medical Cyclotron Laboratory, University of Turku, FinlandSearch for more papers by this authorG. Antoni, G. Antoni Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorA. D. Gee, A. D. Gee Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorJ. Ulin, J. Ulin Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this authorB. Långström, B. Långström Department of Organic Chemistry, Uppsala University, SwedenSearch for more papers by this author First published: January 1990 https://doi.org/10.1111/j.1600-0404.1990.tb00926.xCitations: 61AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The kinetics in brain of the dopamine reuptake blocking agent [11C]-(+)-nomifensine and the L-dopa analogue 6-[18F]fluoro-L-dopa were compared in 3 patients with idiopathic Parkinson's disease and age-matched healthy volunteers using positron emission tomography. Regional uptake was analyzed and quantified according to a 3-compartment model. Retention of both tracers in striatal regions of the parkinsonian patients were reduced compared with the healthy volunteers mainly in the putamen, while the caudate nucleus was only mildly affected. The reductions were considerably less than the decrease previously reported postmortem for striatal dopamine content in the basal ganglia of patients with Parkinson's disease. A fairly constant ratio between 6-[18F]fluoro-L-dopa utilization and [11C]-(+)-nomifensine binding in the caudate nucleus and the putamen were found in both groups unrelated to the size of the estimated parameters. This indicates that a limiting factor for the utilization of exogenous levodopa in Parkinson's disease may be a reduced transport capacity for the amino acid into the dopaminergic terminals. References 1 Nahmias C, Garnett SE, Firnau G, Lang A. Striatal dopamine distribution in parkinsonian patients during life. 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