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Progression trajectories from prodromal to overt synucleinopathies: a longitudinal, multicentric brain [18F]FDG-PET study
npj Parkinson's Disease ( IF 6.7 ) Pub Date : 2024-10-25 , DOI: 10.1038/s41531-024-00813-z
Beatrice Orso, Pietro Mattioli, Eun-Jin Yoon, Yu Kyeong Kim, Heejung Kim, Jung Hwan Shin, Ryul Kim, Francesco Famà, Andrea Brugnolo, Federico Massa, Agostino Chiaravalloti, Mariana Fernandes, Matteo Spanetta, Fabio Placidi, Matteo Pardini, Matteo Bauckneht, Silvia Morbelli, Jee-Young Lee, Claudio Liguori, Dario Arnaldi

The phenoconversion trajectory from idiopathic/isolated Rapid eye movement (REM) sleep behavior disorder (iRBD) towards either Parkinson’s Disease (PD) or Dementia with Lewy Bodies (DLB) is currently uncertain. We investigated the capability of baseline brain [18F]FDG-PET in differentiating between iRBD patients eventually phenoconverting to PD or DLB, by deriving the denovoPDRBD-related pattern (denovoPDRBD-RP) from 32 de novo PD patients; and the denovoDLBRBD-RP from 30 de novo DLB patients, both with evidence of RBD at diagnosis. To explore [18F]FDG-PET phenoconversion trajectories prediction power, we applied these two patterns on a group of 115 iRBD patients followed longitudinally. At follow-up (25.6 ± 17.2 months), 42 iRBD patients progressed through overt alpha-synucleinopathy (21 iRBD-PD and 21 iRBD-DLB converters), while 73 patients remained stable at the last follow-up visit (43.2 ± 27.6 months). At survival analysis, both patterns were significantly associated with the phenoconversion trajectories. Brain [18F]FDG-PET is a promising biomarker to study progression trajectories in the alpha-synucleinopathy continuum.



中文翻译:


从前驱型到显性突触核蛋白病的进展轨迹:纵向、多中心脑 [18F]FDG-PET 研究



从特发性/孤立性快速眼动 (REM) 睡眠行为障碍 (iRBD) 到帕金森病 (PD) 或路易体痴呆症 (DLB) 的表型转换轨迹目前尚不确定。我们通过从 32 名新发 PD 患者推导出 denovoPDRBD 相关模式 (denovoPDRBD-RP),研究了基线大脑 [18F]FDG-PET 区分最终表型转化为 PD 或 DLB 的 iRBD 患者的能力;和 30 名新发 DLB 患者的 denovoDLBRBD-RP,两者在诊断时均有 RBD 的证据。为了探索 [18F]FDG-PET 表型转换轨迹预测能力,我们将这两种模式应用于一组纵向随访的 115 名 iRBD 患者。在随访时 (25.6 ± 17.2 个月),42 名 iRBD 患者进展为明显的 α-突触核蛋白病 (21 名 iRBD-PD 和 21 名 iRBD-DLB 转换者),而 73 名患者在最后一次随访时保持稳定 (43.2 ± 27.6 个月)。在生存分析中,两种模式都与表型转换轨迹显著相关。脑 [18F]FDG-PET 是一种很有前途的生物标志物,可用于研究 α-突触核蛋白病连续体中的进展轨迹。

更新日期:2024-10-25
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