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Georgakis MK, Ntanasi E, Ramirez A, Grenier-Boley B, Lambert JC, Sakka P, Yannakoulia M, Kosmidis MH, Dardiotis E, Hadjigeorgiou GM, Charissis S, Mourtzi N, Hatzimanolis A, Scarmeas N. Vascular burden and genetic risk in association with cognitive performance and dementia in a population-based study. Cereb Circ Cogn Behav 2022; 3:100145. [PMID: 36324400 PMCID: PMC9616333 DOI: 10.1016/j.cccb.2022.100145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 02/19/2022] [Accepted: 04/28/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND PURPOSE Vascular risk factors may influence cognitive function and thus represent possible targets for preventive approaches against dementia. Yet it remains unknown, if they associate with cognition independently of the individual genetic risk for dementia. METHODS In a population-based study of 1172 community-dwelling individuals aged ≥65 years in Greece, we constructed a vascular burden score (VBS; based on presence of hypertension, diabetes, hyperlipidemia, heart disease, and cerebrovascular disease, range 0-5) and a polygenic risk score (PRS) for clinically-diagnosed Alzheimer's disease (AD) based on 23 genetic variants. We then explored in joint models the associations of the PRS for AD and VBS with global cognitive performance, cognitive performance across multiple cognitive domains, and odds of dementia. RESULTS The mean age of study participants was 73.9 ± 5.2 years (57.1% females). Both the PRS for AD and VBS were associated with worse global cognitive performance (beta per-SD-increment in PRS: -0.06, 95%CI: -0.10 to -0.02, beta per-point-increment in VBS: -0.05, 95%CI: -0.09 to -0.02), worse performance across individual cognitive domains (memory, executive function, attention, language, visuospatial ability), and higher odds of dementia (OR per-SD increment in PRS: 1.56, 95%CI: 1.17-2.09, OR per-point increment in VBS: 1.38, 95%CI: 1.05-1.81). There was no evidence of an interaction between the two scores. Higher VBS was associated with worse cognitive performance equally across tertiles of the PRS for AD, even among individuals at the highest tertile. CONCLUSIONS Both genetic risk and vascular burden are independently and additively associated with worse cognitive performance and higher odds of dementia.
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Affiliation(s)
- Marios K. Georgakis
- Institute for Stroke and Dementia Research (ISD), University Hospital, Ludwig-Maximilians-University LMU, Feodor-Lynen-Str. 17, Munich 81377, Germany
- Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Programme in Medical and Population Genetics, Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Eva Ntanasi
- 1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Alfredo Ramirez
- Department of Psychiatry, Medical Faculty, University of Cologne, Cologne, Germany
- Department of Neurodegenerative Diseases and Geriatric Psychiatry, University of Bonn, Bonn, Germany
| | - Benjamin Grenier-Boley
- U1167-RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liés au Vieillissement, University of Lille, Inserm, CHU Lille, Institut Pasteur de Lille, Lille, France
| | - Jean-Charles Lambert
- U1167-RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liés au Vieillissement, University of Lille, Inserm, CHU Lille, Institut Pasteur de Lille, Lille, France
| | - Paraskevi Sakka
- Athens Association of Alzheimer's Disease and Related Disorders, Marousi, Greece
| | - Mary Yannakoulia
- Department of Nutrition and Dietetics, Harokopio University, Athens, Greece
| | - Mary H. Kosmidis
- Lab of Cognitive Neuroscience, School of Psychology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Efthimios Dardiotis
- Department of Neurology, Faculty of Medicine, School of Health Sciences, University Hospital of Larissa, University of Thessaly, Larissa, Greece
| | | | - Sokratis Charissis
- 1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Niki Mourtzi
- 1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
| | - Alexandros Hatzimanolis
- Department of Psychiatry, National and Kapodistrian University of Athens Medical School, Eginition Hospital, Athens, Greece
- Theodor-Theohari Cozzika Foundation, Neurobiology Research Institute, Athens, Greece
| | - Nikolaos Scarmeas
- 1st Department of Neurology, Eginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece
- Department of Neurology, The Gertrude H. Sergievsky Center, Taub Institute for Research in Alzheimer's Disease and the Aging Brain, Columbia University, New York, NY, USA
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