Association of Initial Side of Brain Atrophy With Clinical Features and Disease Progression in Patients With GRN Frontotemporal Dementia

作者：Sergi Borrego‐Écija, Jordi Juncà‐Parella, Marijne Vandebergh, Agnès Pérez‐Millan, Mircea Balasa, Albert Lladó, Arabella Bouzigues, Lucy L. Russell, Phoebe H. Foster, Eve Ferry‐Bolder, John C. van Swieten, Lize C. Jiskoot, Harro Seelaar, Robert Laforce, Caroline Graff, Daniela Galimberti, Rik Vandenberghe, Alexandre de Mendonça, Pietro Tiraboschi, Isabel Santana, Alexander Gerhard, Johannes Levin, Sandro Sorbi, Markus Otto, Florence Pasquier, Simon Ducharme, Christopher Butler, Isabelle Le Ber, Elizabeth Finger, Maria Carmela Tartaglia, Mario Masellis, James B. Rowe, Matthis Synofzik, Fermín Moreno, Barbara Borroni, Rosa Rademakers, Jonathan D. Rohrer, Raquel Sánchez‐Valle, for the Genetic Frontotemporal Initiative (GENFI) · 发表于：Neurology · 年份：2024 · DOI：10.1212/wnl.0000000000209944 · 被引用次数：11 · 研究领域：Amyotrophic Lateral Sclerosis Research、Dementia and Cognitive Impairment Research、Alzheimer's disease research and treatments

Background and Objectives Pathogenic variants in the GRN gene cause frontotemporal dementia (FTD- GRN ) with marked brain asymmetry. This study aims to assess whether the disease progression of FTD- GRN depends on the initial side of the atrophy. We also investigated the potential use of brain asymmetry as a biomarker of the disease. Methods Retrospective examination of data from the prospective Genetic Frontotemporal Initiative (GENFI) cohort study that recruits individuals who carry or were at risk of carrying a pathogenic variant causing FTD. GENFI participants underwent a standardized clinical and neuropsychological assessment, MRI, and a blood sample test yearly. We generated an asymmetry index for brain MRI to characterize brain asymmetry in participants with or at risk of FTD- GRN . Depending on the side of the asymmetry, we classified symptomatic GRN patients as right- GRN or left- GRN and compared their clinical features and disease progression. We generated generalized additive models to study how the asymmetry index evolves in carriers and noncarriers and compare its models with others created with volumetric values and plasma neurofilament light chain. Results A total of 399 participants (mean age 49.7 years, 59% female) were included (63 symptomatic carriers, 177 presymptomatic carriers, and 159 noncarriers). Symptomatic carriers showed higher brain asymmetry (11.6) than noncarriers (1.0, p < 0.001) and presymptomatic carriers (1.0, p < 0.001), making it possible...