Retinal layer thickness in preclinical Alzheimer's disease

PURPOSE: There is urgent need for non-invasive diagnostic biomarkers in the preclinical phase of Alzheimer's Disease (AD). Several studies suggest that retinal thickness is reduced in AD. Here, we aim to test the diagnostic value of retinal thickness in preclinical AD, as defined by cognitively normal individuals with amyloid pathology on PET. METHODS: One hundred and sixty five cognitively healthy monozygotic twins aged ≥ 60 were included from the Netherlands Twin Register taking part in the European Medical Information Framework for Alzheimer's Disease PreclinAD study. Participants underwent... Mehr ...

Verfasser: van de Kreeke, Jacoba A
Nguyen, Hoang-Ton
den Haan, Jurre
Konijnenberg, Elles
Tomassen, Jori
den Braber, Anouk
Ten Kate, Mara
Collij, Lyduine
Yaqub, Maqsood
van Berckel, Bart
Lammertsma, Adriaan A
Boomsma, Dorret I
Tan, Hendra Stevie
Verbraak, Frank D
Visser, Pieter Jelle
Dokumenttyp: Artikel
Erscheinungsdatum: 2019
Reihe/Periodikum: van de Kreeke , J A , Nguyen , H-T , den Haan , J , Konijnenberg , E , Tomassen , J , den Braber , A , Ten Kate , M , Collij , L , Yaqub , M , van Berckel , B , Lammertsma , A A , Boomsma , D I , Tan , H S , Verbraak , F D & Visser , P J 2019 , ' Retinal layer thickness in preclinical Alzheimer's disease ' , Acta Ophthalmologica , vol. 97 , no. 8 , pp. 798-804 . https://doi.org/10.1111/aos.14121
Schlagwörter: /dk/atira/pure/keywords/cohort_studies/netherlands_twin_register_ntr_ / name=Netherlands Twin Register (NTR) / /dk/atira/pure/sustainabledevelopmentgoals/peace_justice_and_strong_institutions / name=SDG 16 - Peace / Justice and Strong Institutions
Sprache: Englisch
Permalink: https://search.fid-benelux.de/Record/base-26845368
Datenquelle: BASE; Originalkatalog
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Link(s) : https://research.vu.nl/en/publications/e8465bbc-d02a-4fb6-8d37-b9f2c76460a3

PURPOSE: There is urgent need for non-invasive diagnostic biomarkers in the preclinical phase of Alzheimer's Disease (AD). Several studies suggest that retinal thickness is reduced in AD. Here, we aim to test the diagnostic value of retinal thickness in preclinical AD, as defined by cognitively normal individuals with amyloid pathology on PET. METHODS: One hundred and sixty five cognitively healthy monozygotic twins aged ≥ 60 were included from the Netherlands Twin Register taking part in the European Medical Information Framework for Alzheimer's Disease PreclinAD study. Participants underwent [18 F] flutemetamol PET that was visually rated for presence or absence of cortical amyloid beta (Aβ). Binding potential (BPND ) was calculated as continuous measure for Aβ. Spectral Domain OCT was used to asses total and individual inner retinal layer thickness in the macular region (ETDRS circles) as well as peripapillary retinal nerve fibre layer (pRNFL) thickness. Differences between Aβ+ and Aβ- individuals and associations between BPND and retinal thickness were analyzed. RESULTS: No differences were found in retinal layer thickness in the macula or pRNFL between Aβ+ and Aβ- individuals. A positive associations between BPND and macular total retinal thickness was observed in the inner ring (p = 0.018), but this was not statistically significant after correction for multiple testing (p = 0.144). Brain/eye parameters had moderate to high intra-twin correlations (p < 0.001) except visual rating score of Aβ, which did not correlate (r = 0.21, p = 0.068). CONCLUSION: Variation in retinal thickness likely reflects genetic differences between individuals, but cannot discriminate between healthy and preclinical AD cases, making its use as biomarker in these early stages limited.