Keyword search (4,163 papers available)

"Sabra D" Authored Publications:

Title Authors PubMed ID
1 Cardiorespiratory fitness in relation to cerebral vascular and metabolic health in older adults with coronary artery disease Sanami S; Tremblay SA; Potvin-Jutras Z; Rezaei A; Sabra D; Gagnon C; Intzandt B; Mainville-Berthiaume A; Wright L; Gayda M; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ; 41680492
SOH
2 Greater cardiorespiratory fitness is associated with higher cerebral blood flow and lower oxygen extraction fraction in healthy older adults Sanami S; Rezaei A; Tremblay SA; Potvin-Jutras Z; Sabra D; Intzandt B; Gagnon C; Mainville-Berthiaume A; Wright L; Gayda M; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ; 41543005
SOH
3 The Impact of Coronary Artery Disease on Brain Vascular and Metabolic Health: Links to Cognitive Function Sanami S; Tremblay SA; Rezaei A; Potvin-Jutras Z; Sabra D; Intzandt B; Gagnon C; Mainville-Berthiaume A; Wright L; Gayda M; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ; 41452711
SOH
4 Multivariate white matter microstructure alterations in older adults with coronary artery disease Tremblay SA; Potvin-Jutras Z; Sabra D; Rezaei A; Sanami S; Gagnon C; Intzandt B; Mainville-Berthiaume A; Wright L; Leppert IR; Tardif CL; Steele CJ; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ; 40829939
SOH
5 Sex moderations in the relationship between aortic stiffness, cognition, and cerebrovascular reactivity in healthy older adults Sabra D; Intzandt B; Desjardins-Crepeau L; Langeard A; Steele CJ; Frouin F; Hoge RD; Bherer L; Gauthier CJ; 34582484
PERFORM
6 A Cross-Sectional Study on the Impact of Arterial Stiffness on the Corpus Callosum, a Key White Matter Tract Implicated in Alzheimer's Disease Badji A; de la Colina AN; Boshkovski T; Sabra D; Karakuzu A; Robitaille-Grou MC; Gros C; Joubert S; Bherer L; Lamarre-Cliche M; Stikov N; Gauthier CJ; Cohen-Adad J; Girouard H; 32741837
PERFORM
7 Higher cardiovascular fitness level is associated with lower cerebrovascular reactivity and perfusion in healthy older adults. Intzandt B, Sabra D, Foster C, Desjardins-Crépeau L, Hoge RD, Steele CJ, Bherer L, Gauthier CJ 31342831
PERFORM
8 Arterial stiffness and brain integrity: A review of MRI findings. Badji A, Sabra D, Bherer L, Cohen-Adad J, Girouard H, Gauthier CJ 31063866
PERFORM

 

Title:Higher cardiovascular fitness level is associated with lower cerebrovascular reactivity and perfusion in healthy older adults.
Authors:Intzandt BSabra DFoster CDesjardins-Crépeau LHoge RDSteele CJBherer LGauthier CJ
Link:https://www.ncbi.nlm.nih.gov/pubmed/31342831?dopt=Abstract
DOI:10.1177/0271678X19862873
Publication:Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism
Keywords:AgingMRIcerebrovascular reactivityfitnessperfusion-weighted imaging
PMID:31342831 Category:J Cereb Blood Flow Metab Date Added:2019-08-07
Dept Affiliation: PERFORM
1 INDI Department, Concordia University, Montreal, Canada.
2 PERFORM Centre, Concordia University, Montreal, Canada.
3 Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, Canada.
4 Départment de Médecine, Université de Montréal, Canada.
5 Physics Department, Concordia University, Montreal, Canada.
6 Centre de Recherche de l'Institut de Cardiologie de Montréal, Montréal, Canada.
7 Department of Neurology and Neurosurgery, McGill University, Canada.
8 Department of Psychology, Concordia University, Montreal, Canada.
9 Department of Neurology, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany.

Description:

Higher cardiovascular fitness level is associated with lower cerebrovascular reactivity and perfusion in healthy older adults.

J Cereb Blood Flow Metab. 2019 Jul 25;:271678X19862873

Authors: Intzandt B, Sabra D, Foster C, Desjardins-Crépeau L, Hoge RD, Steele CJ, Bherer L, Gauthier CJ

Abstract

Aging is accompanied by vascular and structural changes in the brain, which include decreased grey matter volume (GMV), cerebral blood flow (CBF), and cerebrovascular reactivity (CVR). Enhanced fitness in aging has been related to preservation of GMV and CBF, and in some cases CVR, although there are contradictory relationships reported between CVR and fitness. To gain a better understanding of the complex interplay between fitness and GMV, CBF and CVR, the present study assessed these factors concurrently. Data from 50 participants, aged 55 to 72, were used to derive GMV, CBF, CVR and VO2peak. Results revealed that lower CVR was associated with higher VO2peak throughout large areas of the cerebral cortex. Within these regions lower fitness was associated with higher CBF and a faster hemodynamic response to hypercapnia. Overall, our results indicate that the relationships between age, fitness, cerebral health and cerebral hemodynamics are complex, likely involving changes in chemosensitivity and autoregulation in addition to changes in arterial stiffness. Future studies should collect other physiological outcomes in parallel with quantitative imaging, such as measures of chemosensitivity and autoregulation, to further understand the intricate effects of fitness on the aging brain, and how this may bias quantitative measures of cerebral health.

PMID: 31342831 [PubMed - as supplied by publisher]





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