Author(s): Paul J; Jäger ATP; Huck J; Tardif CL; Villringer A; Gauthier CJ; Bazin PL; Steele CJ;

Ultra-high field magnetic resonance imaging at sub-millimeter resolution opens the possibility to assess subtle longitudinal changes in brain structure and function. Identifying the regions and putative mechanisms involved in learning specific motor sequences is a key step towards understanding neuroplasticity. To disambiguate sequence-specific learning f ...

Article GUID: 42237744

Author(s): Rezaei A; Potvin-Jutras Z; Tremblay SA; Sanami S; Sabra D; Huck J; Gagnon C; Wright L; Leppert IR; Tardif CL; Iglesies-Grau J; Nigam A; Bherer L; Gauthier CJ;

Coronary artery disease is associated with white matter alterations. However, the biological basis of these changes remains unclear, specifically in normal-appearing white matter. Myelin and iron content are crucial measures of white matter health and can be measured with quantitative MRI. This s ...

Article GUID: 42149094

Author(s): 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;

This study investigated whether higher cardiorespiratory fitness (VO2peak) is associated with better cerebral vascular and metabolic health-specifically cerebral blood flow (CBF), cerebrovascular reactivity (CVR), cerebral metabolic rate of oxygen (CMRO2), and oxygen extraction fraction (OEF) acr ...

Article GUID: 41680492

Author(s): 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;

Aerobic exercise training promotes cardiovascular, brain and cognitive health. Regular exercise is associated with higher cardiorespiratory fitness, commonly assessed by peak oxygen uptake (VO2peak) during maximal effort testing. Higher cardiorespiratory fitness has been linked to preserved brain ...

Article GUID: 41543005

Author(s): Zhou J; Wearn A; Huck J; Hughes CS; Baracchini G; Sylvain E; Tremblay-Mercier J; Poirier J; Breitner JCSCS; Villeneuve S; Chakravarty MM; Tardif CL; Gauthier CJ; Daugherty AM; Turner GR; Spreng RN;

Background: Elevated brain iron deposition is recognized as a characteristic of normal aging and neurodegenerative diseases, particularly Alzheimer's disease (AD), where it correlated with amyloid-ß plaques and neurofibrillary tangles. Our study aimed to investigate the relationship between l ...

Article GUID: 41499788

Author(s): 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;

Coronary artery disease (CAD), the leading cause of mortality worldwide, is increasingly recognized for its impact on brain health and cognition, yet the mechanisms linking CAD to vascular and metabolic alterations in the brain remain poorly understood. Prior work has identified regional deficits ...

Article GUID: 41452711

Author(s): Intzandt B; Potvin-Jutras Z; Whittingstall K; Gauthier CJ;

Background: Circulating sex hormones decrease in aging, influencing cerebrovascular health, a key factor in dementia risk. Early menopause is a risk factor for dementia comparable to smoking2. Estradiol consistently supports female vasculature1 and brain health, though its effects on cerebrovascular health is understudied. Testosterone's effects in ma ...

Article GUID: 41433411

Author(s): Intzandt B; Potvin-Jutras Z; Whittingstall K; Gauthier CJ;

Background: Circulating sex hormones decrease in aging, influencing cerebrovascular health, a key factor in dementia risk. Early menopause is a risk factor for dementia comparable to smoking2. Estradiol consistently supports female vasculature1 and brain health, though its effects on cerebrovascular health is understudied. Testosterone's effects in ma ...

Article GUID: 41435069

Author(s): Potvin-Jutras Z; Tremblay PL; Mohammadi H; Villeneuve S; Spreng RN; Gauthier CJ;

The apolipoprotein E4 (APOE4) allele is the strongest genetic risk factor for Alzheimer's disease (AD) and is linked to poorer cerebrovascular health. Cerebrovascular reactivity (CVR), an indicator of vascular reserve, and cerebral pulsatility (CP), a marker of vascular stiffness, are sensitive biomarkers of early vascular dysfunction associated with ...

Article GUID: 41353310

Author(s): Villeneuve S; Poirier J; Breitner JCS; Tremblay-Mercier J; Remz J; Raoult JM; Yakoub Y; Gallego-Rudolf J; Qiu T; Fajardo Valdez A; Mohammediyan B; Javanray M; Metz A; Sanami S; Ourry V; Wearn A; Pastor-Bernier A; Edde M; Gonneaud J; Stri ...

The PResymptomatic EValuation of Experimental or Novel Treatments for Alzheimer's Disease (PREVENT-AD) is an investigator-driven study that was created in 2011 and enrolled cognitively normal older adults with a family history of sporadic AD. Participants are deeply phenotyped and have now be ...

Article GUID: 41020412

Author(s): 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;

Patients with coronary artery disease (CAD) face an increased risk of cognitive impairment, dementia, and stroke. While white matter (WM) lesions are frequently reported in patients with CAD, the effects on WM microstructure alterations remain largely unknown. We aimed to identify WM microstructu ...

Article GUID: 40829939