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Your search keyword '"Jean-Francois, Mangin"' showing total 4 results
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4 results on '"Jean-Francois, Mangin"'

1. Association of APOE ε4 with cerebral gray matter volumes in non-demented older adults: The MEMENTO cohort study

Author

Mélina Régy, Aline Dugravot, Séverine Sabia, Aurore Fayosse, Jean-Francois Mangin, Marie Chupin, Clara Fischer, Vincent Bouteloup, Carole Dufouil, Geneviève Chêne, Claire Paquet, Bernard Hanseeuw, Archana Singh-Manoux, and Julien Dumurgier

Subjects
APOE genotype, MRI, Longitudinal analysis, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571
Abstract

Data on 2,045 non-demented individuals with memory complaints were drawn from the Memento cohort study to examine the association between Apolipoprotein E ε4 allele (APOE4) and regional brain gray matter volumes. Linear regression was used to examine the association of APOE4 and measures of regional gray matter volumes in cross-sectional analysis and change therein using longitudinal analyses based on two brain MRI performed at baseline and at two-year follow-up. Overall, in analyses adjusted for age, sex, and intracranial volume, the presence of APOE4 was associated with lower total gray matter volume at baseline and with a higher atrophy rate over the follow-up. The hippocampus and entorhinal cortex were the two gray matter regions most associated with APOE4. Further adjustment for cardiovascular risk factors had little impact on these associations. There was an interaction between age, APOE4 status and total brain volume atrophy rate, with evidence of an earlier age at onset of atrophy in hippocampal volume in APOE4 carriers compared to non-carriers. Those results are in accordance with the role of medial temporal structures in the greater risk of dementia observed in people carrying the APOE4 allele.

Published
2022
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2. Genetic determinants of individual variation in the superior temporal sulcus of chimpanzees (Pan troglodytes)

Author

William D Hopkins, Oliver Coulon, Adrien Meguerditchian, Nicky Staes, Chet C Sherwood, Steven J Schapiro, Jean-Francois Mangin, Brenda Bradley, Institut de Neurosciences de la Timone (INT), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Station de primatologie (SP), Centre National de la Recherche Scientifique (CNRS), Laboratoire de psychologie cognitive (LPC), Institute of Language, Communication and the Brain (ILCB), ANR-16-CONV-0002,ILCB,ILCB: Institute of Language Communication and the Brain(2016), and European Project: 716931,GESTIMAGE

Subjects
Cellular and Molecular Neuroscience, [SCCO.NEUR]Cognitive science/Neuroscience, Cognitive Neuroscience, Original Article
Abstract

International audience; Abstract The superior temporal sulcus (STS) is a conserved fold that divides the middle and superior temporal gyri. In humans, there is considerable variation in the shape, folding pattern, lateralization, and depth of the STS that have been reported to be associated with social cognition and linguistic functions. We examined the role that genetic factors play on individual variation in STS morphology in chimpanzees. The surface area and depth of the STS were quantified in sample of 292 captive chimpanzees comprised of two genetically isolated population of individuals. The chimpanzees had been previously genotyped for AVPR1A and KIAA0319, two genes that play a role in social cognition and communication in humans. Single nucleotide polymorphisms in the KIAA0319 and AVPR1A genes were associated with average depth as well as asymmetries in the STS. By contrast, we found no significant effects of these KIA0319 and AVPR1A polymorphism on surface area and depth measures for the central sulcus. The overall findings indicate that genetic factors account for a small to moderate amount of variation in STS morphology in chimpanzees. These findings are discussed in the context of the role of the STS in social cognition and language in humans and their potential evolutionary origins.

Published
2022
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4. Associations among hypertension, dementia biomarkers, and cognition: The MEMENTO cohort

Author

Jérémie, Lespinasse, Geneviève, Chêne, Jean-Francois, Mangin, Bruno, Dubois, Frederic, Blanc, Claire, Paquet, Olivier, Hanon, Vincent, Planche, Audrey, Gabelle, Mathieu, Ceccaldi, Cedric, Annweiler, Pierre, Krolak-Salmon, Olivier, Godefroy, David, Wallon, Mathilde, Sauvée, Sébastien, Bergeret, Marie, Chupin, Cécile, Proust-Lima, Carole, Dufouil, Groupe de Recherche en Economie Théorique et Appliquée (GREThA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière (CRICM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire des sciences de l'ingénieur, de l'informatique et de l'imagerie (ICube), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Université de Strasbourg (UNISTRA)-Institut National des Sciences Appliquées - Strasbourg (INSA Strasbourg), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Les Hôpitaux Universitaires de Strasbourg (HUS)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Biomarqueurs CArdioNeuroVASCulaires (BioCANVAS), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Lariboisière-François Widal, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), AP-HP - Hôpital Cochin Broca Hôtel Dieu [Paris], Université de Bordeaux (UB), Centre Mémoire de Ressources et de Recherches [Bordeaux], CHU Bordeaux [Bordeaux], Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Neuropsychiatrie : recherche épidémiologique et clinique (PSNREC), Université Montpellier 1 (UM1)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Université de Montpellier (UM), Laboratoire de Psychologie des Pays de la Loire (LPPL), Université d'Angers (UA)-Université de Nantes - UFR Lettres et Langages (UFRLL), Université de Nantes (UN)-Université de Nantes (UN), Centre Hospitalier Lyon Sud [CHU - HCL] (CHLS), Hospices Civils de Lyon (HCL), Service de neurologie [Amiens], CHU Amiens-Picardie, Laboratoire de Neurosciences Fonctionnelles et Pathologies - UR UPJV 4559 (LNFP), Université de Picardie Jules Verne (UPJV), Service de neurologie [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU), Génétique du cancer et des maladies neuropsychiatriques (GMFC), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM), Pôle Psychiatrie et Neurologie [Grenoble], Centre Hospitalier Universitaire [Grenoble] (CHU), Université des Antilles - UFR des sciences médicales Hyacinthe Bastaraud (UA UFR SM), Université des Antilles (UA), Equipe NEMESIS - Centre de Recherches de l'Institut du Cerveau et de la Moelle épinière (NEMESIS-CRICM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Epidémiologie et Biostatistique [Bordeaux], Université Bordeaux Segalen - Bordeaux 2-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), and Institut National de la Santé et de la Recherche Médicale (INSERM), U708, Neuroepidemiology, Paris, France

Subjects
cognition, hypertension, Epidemiology, Health Policy, structural equation model, amyloid beta 42, hippocampal volume, cortical thickness, white matter hyperintensities, fluorodeoxyglucose positron emission tomography, Psychiatry and Mental health, Cellular and Molecular Neuroscience, Developmental Neuroscience, mediation, tau, Neurology (clinical), Geriatrics and Gerontology, positron emission tomography amyloid, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience; Introduction: Approximately 40% of dementia cases could be delayed or prevented acting on modifiable risk factors including hypertension. However, the mechanisms underlying the hypertension-dementia association are still poorly understood.Methods: We conducted a cross-sectional analysis in 2048 patients from the MEMENTO cohort, a French multicenter clinic-based study of outpatients with either isolated cognitive complaints or mild cognitive impairment. Exposure to hypertension was defined as a combination of high blood pressure (BP) status and antihypertensive treatment intake. Pathway associations were examined through structural equation modeling integrating extensive collection of neuroimaging biomarkers and clinical data.Results: Participants treated with high BP had significantly lower cognition compared to the others. This association was mediated by higher neurodegeneration and higher white matter hyperintensities load but not by Alzheimer's disease (AD) biomarkers.Discussion: These results highlight the importance of controlling hypertension for prevention of cognitive decline and offer new insights on mechanisms underlying the hypertension-dementia association.Highlights: Paths of hypertension-cognition association were assessed by structural equation models. The hypertension-cognition association is not mediated by Alzheimer's disease biomarkers. The hypertension-cognition association is mediated by neurodegeneration and leukoaraiosis. Lower cognition was limited to participants treated with uncontrolled blood pressure. Blood pressure control could contribute to promote healthier brain aging.

Published
2022
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