Skip to main content
main-content

26.10.2017 | Original Article | Ausgabe 3/2018

European Journal of Nuclear Medicine and Molecular Imaging 3/2018

Presynaptic dopamine depletion determines the timing of levodopa-induced dyskinesia onset in Parkinson’s disease

Zeitschrift:
European Journal of Nuclear Medicine and Molecular Imaging > Ausgabe 3/2018
Autoren:
Han Soo Yoo, Seok Jong Chung, Su Jin Chung, Hyojeong Moon, Jung Su Oh, Jae Seung Kim, Jin Yong Hong, Byoung Seok Ye, Young Ho Sohn, Phil Hyu Lee
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s00259-017-3844-8) contains supplementary material, which is available to authorized users.

Abstract

Purpose

Reduced presynaptic dopaminergic activity plays an important role in the development of levodopa-induced dyskinesia (LID) in Parkinson’s disease (PD). In this study, we investigated whether dopaminergic function in the nigrostriatal system is associated with the timing of LID onset.

Methods

From among 412 drug-naive PD patients who underwent a dopamine transporter (DAT) PET scan during their baseline evaluation, we enrolled 65 patients who developed LID during a follow-up period of >2 years. Based on the time from PD onset, LID was classified as early, intermediate or late onset. We then compared DAT availability in the striatal subregions of the patients in the three groups.

Results

The demographic characteristics did not differ among the three patient groups except for earlier intervention of levodopa therapy in the early LID onset group (p = 0.001). After adjusting for age at PD onset, gender, timing of levodopa therapy from PD onset, and the severity of PD motor symptoms, DAT activity in the posterior putamen was found to be significantly lower in the early LID onset group than in the late LID onset group (p = 0.017). Multivariate linear regression analysis showed that low DAT activity in the posterior putamen was significantly associated with the early appearance of LID in the early LID onset group (β = 16.039, p = 0.033).

Conclusion

This study demonstrated that low DAT activity in the posterior putamen at baseline is a major risk factor for the early onset of LID in patients with PD, suggesting that the degree of presynaptic dopaminergic denervation plays an important role in determining the timing of LID onset.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

★ PREMIUM-INHALT
e.Med Interdisziplinär

Mit e.Med Interdisziplinär erhalten Sie Zugang zu allen CME-Fortbildungen und Fachzeitschriften auf SpringerMedizin.de.

Weitere Produktempfehlungen anzeigen
Zusatzmaterial
Nur für berechtigte Nutzer zugänglich
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 3/2018

European Journal of Nuclear Medicine and Molecular Imaging 3/2018 Zur Ausgabe
  1. Sie können e.Med Radiologie 14 Tage kostenlos testen (keine Print-Zeitschrift enthalten). Der Test läuft automatisch und formlos aus. Es kann nur einmal getestet werden.

  2. Das kostenlose Testabonnement läuft nach 14 Tagen automatisch und formlos aus. Dieses Abonnement kann nur einmal getestet werden.