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Titolo:
Rate of progression in Parkinson's disease: A 6-[F-18]fluoro-L-dopa PET study
Autore:
Nurmi, E; Ruottinen, HM; Bergman, J; Haaparanta, M; Solin, O; Sonninen, P; Rinne, JO;
Indirizzi:
Univ Turku, Turku PET Ctr, FIN-20520 Turku, Finland Univ Turku Turku Finland FIN-20520 rku PET Ctr, FIN-20520 Turku, Finland Univ Turku, Dept Neurol, FIN-20520 Turku, Finland Univ Turku Turku Finland FIN-20520 Dept Neurol, FIN-20520 Turku, Finland Univ Turku, Dept Radiol, FIN-20520 Turku, Finland Univ Turku Turku Finland FIN-20520 Dept Radiol, FIN-20520 Turku, Finland Turku PET Ctr, Radiochem Lab, Turku, Finland Turku PET Ctr Turku Finland urku PET Ctr, Radiochem Lab, Turku, Finland
Titolo Testata:
MOVEMENT DISORDERS
fascicolo: 4, volume: 16, anno: 2001,
pagine: 608 - 615
SICI:
0885-3185(200107)16:4<608:ROPIPD>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-EMISSION-TOMOGRAPHY; F-18 DOPA UPTAKE; IDIOPATHIC PARKINSONISM; DOPAMINERGIC FUNCTION; DURATION RESPONSE; SUBSTANTIA-NIGRA; LEVODOPA; METABOLISM; REPRODUCIBILITY; STRIATUM;
Keywords:
fluorodopa; Parkinson's disease; PET; positron emission tomography; progression;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Rinne, JO Univ Turku, Turku PET Ctr, FIN-20520 Turku, Finland Univ Turku Turku Finland FIN-20520 r, FIN-20520 Turku, Finland
Citazione:
E. Nurmi et al., "Rate of progression in Parkinson's disease: A 6-[F-18]fluoro-L-dopa PET study", MOVEMENT D, 16(4), 2001, pp. 608-615

Abstract

The aim of this study was to investigate the rate of progression in Parkinson's disease (PD) with 6-[F-18]fluoro-L-dopa (FDOPA) positron emission tomography (PET). We investigated 21 patients with PD and eight healthy controls. Ten of the patients were de novo at the time of the first PET scan and antiparkinsonian medication was started thereafter, with a favourable response. A FDOPA PET scan was carried out twice at an approximately 5-year interval. The regions of interest were drawn on individual magnetic resonance imaging (MRI) images, matched with the PET images. At the first PET scan, in PD patients the mean k(i)(occ) (x 10(-3) min(-1)) in the anterior putamen was 5.6 +/- 2.7 (mean +/- S.D.; 55% of the control mean) and in the posterior putamen 4.5 +/- 2.4 (45% of the control mean). The k(i)(occ) value for the caudate nucleus was 7.5 +/- 2.1 (x 10(-3) min(-1); 76% of the control mean). The FDOPA uptake declined by the time of thesecond PET scan and the annual rate of decline was 8.3 +/- 6.3% (P < 0.001) of the baseline mean in the anterior putamen and 10.3 +/- 4.8% (P < 0.001) in the posterior putamen. In the caudate nucleus, FDOPA uptake decreased by 5.9 +/- 5.1% (P < 0.001) of the baseline mean per year. The estimated preclinical period was longest for the posterior putamen being 6.5 years. Forthe anterior putamen the preclinical period was 4.6 years. In the caudate nucleus, the estimated FDOPA uptake was at normal level at disease onset. In healthy controls, there was no significant decline in FDOPA uptake in anystriatal subregion. Our results suggest that the disease process in PD first affects posteriorputamen, followed by the anterior putamen and the caudate nucleus, but once started, the absolute rate of decline is the same. In healthy controls, no significant decline in FDOPA was detected. (C) 2001 Movement Disorder Society.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/06/19 alle ore 17:54:52