1. Voxel-based assessments of treatment effects on longitudinal brain changes in the Multidomain Alzheimer Preventive Trial cohort
- Author
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Xavier Pennec, Nicolas Capet, Hervé Delingette, Philippe Robert, Raphaël Sivera, Nicholas Ayache, Valeria Manera, Mapt, Marco Lorenzi, Roxane Fabre, E-Patient : Images, données & mOdèles pour la médeciNe numériquE (EPIONE), Inria Sophia Antipolis - Méditerranée (CRISAM), Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Université Côte d'Azur (UCA), Centre Hospitalier Universitaire de Nice (CHU Nice), Cognition Behaviour Technology (CobTek), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice), This project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant G-Statistics agreement No 786854).The MAPT study was supported by grants from the Gérontopôle of Toulouse, the French Ministry of Health (PHRC 2008, 2009), Pierre Fabre Research Institute (manufacturer of the omega-3 supplement), Exhonit Therapeutics SA, and Avid Radiopharmaceuticals Inc. The promotion of this study was supported by the University Hospital Center of Toulouse. The data sharing activity was supported by the 'Association Monegasque pour la recherche sur la maladie d’Alzheimer'(AMPA) and the INSERM – University of Toulouse III UMR 1027 Unit, This work, part of the MNC3 (Medicine Numérique, Cerveau Cognition Comportement) has been supportedby the French government, through the UCAJEDI Investments in the Future project managed by the NationalResearch Agency (ANR) with the reference number ANR-15-IDEX-01.This project has received funding from the European Research Council (ERC) under the European Union’sHorizon 2020 research and innovation program (grant G-Statistics agreement No 786854).The MAPT study was supported by grants from the Gérontopôle of Toulouse, the French Ministry ofHealth (PHRC 2008, 2009), Pierre Fabre Research Institute (manufacturer of the omega-3 supplement),Exhonit Therapeutics SA, and Avid Radiopharmaceuticals Inc. The promotion of this study was supportedby the University Hospital Center of Toulouse. The data sharing activity was supported by the 'AssociationMonegasque pour la recherche sur la maladie d’Alzheimer'(AMPA) and the INSERM – University of Toulouse III UMR 1027 Unit., ANR-15-IDEX-0001,UCA JEDI,Idex UCA JEDI(2015), ANR-19-P3IA-0002,3IA@cote d'azur,3IA Côte d'Azur(2019), European Project: 786854,H2020 Pilier ERC,ERC AdG(2018), Université Nice Sophia Antipolis (1965 - 2019) (UNS), and COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre Hospitalier Universitaire de Nice (CHU Nice)-Institut Claude Pompidou [Nice] (ICP - Nice)-Université Côte d'Azur (UCA)
- Subjects
Male ,0301 basic medicine ,Aging ,medicine.medical_specialty ,Multidomain intervention ,Temporoparietal junction ,Context (language use) ,Psychosocial Intervention ,Cohort Studies ,03 medical and health sciences ,Cognition ,0302 clinical medicine ,Physical medicine and rehabilitation ,Alzheimer Disease ,Memory ,Fatty Acids, Omega-3 ,medicine ,Humans ,Dementia ,Cognitive Dysfunction ,Cognitive decline ,Aged ,Behavior ,Subjective memory complaint ,business.industry ,General Neuroscience ,[SCCO.NEUR]Cognitive science/Neuroscience ,Brain ,Organ Size ,medicine.disease ,Cognitive training ,Deformation-based morphometry ,Cognitive test ,Clinical trial ,Affect ,Treatment Outcome ,030104 developmental biology ,medicine.anatomical_structure ,Dietary Supplements ,Cohort ,Female ,Neurology (clinical) ,Geriatrics and Gerontology ,business ,030217 neurology & neurosurgery ,Developmental Biology - Abstract
International audience; Objective: The Multidomain Alzheimer Preventive Trial (MAPT) was designed to assess the effect of omega-3 supplementation and a multidomain intervention (physical activity, cognitive training and nutritional advice) on cognitive decline of people with subjective memory complaint. In term of cognitive testing, no significant effect on cognitive decline was found over the 3-year follow-up. Yet, in the context of dementia-related conditions, brain morphological changes can be used to foretell the cognitive evolution. In this paper, we evaluate the effect of the interventions on the evolution of the brain morphology using the MR images acquired during MAPT. Methods: Subjects in the MAPT cohort with two MRI acquisitions, at baseline and at 36 months, were included , resulting in a subset of 376 subjects distributed in the 4 intervention groups: multidomain intervention plus omega-3, multidomain intervention plus placebo, omega-3 alone, and placebo alone. The morphological changes were assessed from volume measurements of regions of interest and a voxel-wise deformation-based approach. The primary outcome is the longitudinal deformation observed between the baseline image and the 3-year follow-up. Results: The multi-domain intervention is associated with a significant effect on the 3-year morphological evolution. The effect is similar within the two groups undergoing the intervention regardless of the omega-3 or placebo treatment. The voxel-wise deformation-based approach shows that the differences are mainly located in the left peri-ventricular area next to the temporoparietal junction (TPJ). These morphological changes correspond to a slower morphological evolution and are correlated with a better performance in cognitive assessments. These results could not be observed using the volumetric morphometry approach. No effect of omega-3 was observed.Discussion: In this study, we found that the multidomain intervention has a significant effect on morphological changes that are usually associated with the cognitive decline. This result suggests that effects at the level of cognitive decline may be visible in the long term, and that the cognitive scores may not be powerful enough to detect changes after 3 years. We argue that the use of neuroimaging could help define whether early intervention strategies are effective to delay cognitive decline and dementia.
- Published
- 2020
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