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. 2024 Dec;271(12):7537-7546.
doi: 10.1007/s00415-024-12669-7. Epub 2024 Sep 9.

Plasma NfL, GFAP, amyloid, and p-tau species as Prognostic biomarkers in Parkinson's disease

Affiliations

Plasma NfL, GFAP, amyloid, and p-tau species as Prognostic biomarkers in Parkinson's disease

Andrea Pilotto et al. J Neurol. 2024 Dec.

Abstract

Introduction: The prognostic role of plasma neurofilament light chain (NfL), phospho-tau, beta-amyloid, and GFAP is still debated in Parkinson's disease (PD).

Methods: Plasma p-tau181, p-tau231, Aβ1-40, Aβ1-42, GFAP, and NfL were measured by SIMOA in 136 PD with 2.9 + 1.7 years of follow-up and 76 controls. Differences in plasma levels between controls and PD and their correlation with clinical severity and progression rates were evaluated using linear regression analyses.

Results: Patients exhibited similar distribution of plasma biomarkers but higher P-tau181, P-tau231 and lower Aβ1-42 compared with controls. NfL and GFAP correlated with baseline motor and non-motor severity measures. At follow-up, NfL emerged as the best predictor of progression with marginal effect of GFAP and p-tau181 adjusting for age, sex, disease duration, and baseline motor severity.

Conclusion: The present findings confirmed plasma NfL as best predictor of progression in PD, with a marginal role of p-tau181 and GFAP.

Keywords: GFAP; Neurofilament light chain; Parkinson’s disease; Phosphorylated tau; Plasma biomarkers; Progression.

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Conflict of interest statement

Declarations. Conflicts of interest: All the authors report no disclosures related to this manuscript. Andrea Pilotto served in the advisory board of Z-cube (technology division of Zambon pharmaceuticals); he received honoraria from Z-cube s.r.l., Biomarin, Zambon, Nutricia and Chiesi Pharmaceuticals. He received research support from Vitaflo Germany and Zambon Italy. Nicholas Ashton has no financial conflicts to disclose. Alessandro Lupini has no financial conflicts to disclose. Beatrice Battaglio has no financial conflicts to disclose. Cinzia Zatti has no financial conflicts to disclose. Chiara Trasciatti has no financial conflicts to disclose. Stefano Gipponi has no financial conflicts to disclose. Elisabetta Cottini has no financial conflicts to disclose. Ilaria Grossi has no financial conflicts to disclose. Alessandro Salvi has no financial conflicts to disclose. Giuseppina De Petro has no financial conflicts to disclose. Marina Pizzi has no financial conflicts to disclose. Antonio Canale has no financial conflicts to disclose. Kaj Blennow has no financial conflicts to disclose. Henrik Zetterberg has served at scientific advisory boards and/or as a consultant for Abbvie, Acumen, Alector, Alzinova, ALZPath, Annexon, Apellis, Artery Therapeutics, AZTherapies, CogRx, Denali, Eisai, Nervgen, Novo Nordisk, Optoceutics, Passage Bio, Pinteon Therapeutics, Prothena, Red Abbey Labs, reMYND, Roche, Samumed, Siemens Healthineers, Triplet Therapeutics, and Wave, has given lectures in symposia sponsored by Cellectricon, Fujirebio, Alzecure, Biogen, and Roche, and is a co-founder of Brain Biomarker Solutions in Gothenburg AB (BBS), which is a part of the GU Ventures Incubator Program (outside submitted work). Alessandro Padovani is consultant and served on the scientific advisory board of GE Healthcare, Eli-Lilly and Actelion Ltd Pharmaceuticals, received speaker honoraria from Nutricia, PIAM, Lansgstone Technology, GE Healthcare, Lilly, UCB Pharma, and Chiesi Pharmaceuticals. He is founded by Grant of M1.

Figures

Fig. 1
Fig. 1
Correlation matrix including age at onset, disease duration, and the biomarkers analyzed in the cohort. p-tau181, phosphorylated Tau 181, p-tau231, phosphorylated Tau 231, Aβ1-40, beta-amyloid 1–40; Aβ1-42, beta-amyloid 1–42; GFAP Glial Fibrillary Acidic Protein, NfL neurofilament light chain; HC healthy controls; SP PD with slow motor progression; FP PD with fast motor progression
Fig. 2
Fig. 2
Cox regression analysis comparing development of dementia in patients with high NFL levels vs patients with normal NFL levels. NfL neurofilament light chain
Fig. 3
Fig. 3
Differences in biomarkers levels in plasma between HC, and slow and fast PD progressors. p-tau181, phosphorylated tau 181, p-tau231, phosphorylated tau 231, Aβ1-40, beta-amyloid 1–40; Aβ 1–42, beta-amyloid 1–42; GFAP glial fibrillary acidic protein, NfL neurofilament light chain

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