Author:
Mencarelli Lucia,Torso Mario,Borghi Ilaria,Assogna Martina,Pezzopane Valentina,Bonnì Sonia,Di Lorenzo Francesco,Santarnecchi Emiliano,Giove Federico,Martorana Alessandro,Bozzali Marco,Ridgway Gerard R.,Chance Steven A.,Koch Giacomo
Abstract
AbstractAlzheimer’s Disease (AD) is characterized by structural and functional dysfunction involving the Default Mode Network (DMN), for which the Precuneus (PC) is a key node. We proposed a randomized double-blind pilot study to determine neurobiological changes after 24 weeks of PC-rTMS in patients with mild-to-moderate AD. Sixteen patients were randomly assigned to SHAM or PC-rTMS, and received an intensive 2-weeks course with daily rTMS sessions, followed by a maintenance phase in which rTMS has been applied once a week. Before and after the treatment structural and functional MRIs were collected. Our results showed macro- and micro-structural preservation in PC-rTMS compared to SHAM-rTMS group after 24 weeks of treatment, correlated to an increase of functional connectivity (FC) within the PC in the PC-rTMS group. Even if preliminary, these results trigger the possibility of using PC-rTMS to arrest atrophy progression by manipulating distributed network connectivity patterns.
Publisher
Springer Science and Business Media LLC