Better cardiovascular health is associated with slowed clinical progression in autosomal dominant frontotemporal lobar degeneration variant carriers

Alzheimers Dement. 2024 Oct;20(10):6820-6833. doi: 10.1002/alz.14172. Epub 2024 Sep 6.

Abstract

Introduction: Cardiovascular health is important for brain aging, yet its role in the clinical manifestation of autosomal dominant or atypical forms of dementia has not been fully elucidated. We examined relationships between Life's Simple 7 (LS7) and clinical trajectories in individuals with autosomal dominant frontotemporal lobar degeneration (FTLD).

Methods: Two hundred forty-seven adults carrying FTLD pathogenic genetic variants (53% asymptomatic) and 189 non-carrier controls completed baseline LS7, and longitudinal neuroimaging and neuropsychological testing.

Results: Among variant carriers, higher baseline LS7 is associated with slower accumulation of frontal white matter hyperintensities (WMHs), as well as slower memory and language declines. Higher baseline LS7 associated with larger baseline frontotemporal volume, but not frontotemporal volume trajectories.

Discussion: Better baseline cardiovascular health related to slower cognitive decline and accumulation of frontal WMHs in autosomal dominant FTLD. Optimizing cardiovascular health may be an important modifiable approach to bolster cognitive health and brain integrity in FTLD.

Highlights: Better cardiovascular health associates with slower cognitive decline in frontotemporal lobar degeneration (FTLD). Lifestyle relates to the accumulation of frontal white matter hyperintensities in FTLD. More optimal cardiovascular health associates with greater baseline frontotemporal lobe volume. Optimized cardiovascular health relates to more favorable outcomes in genetic dementia.

Keywords: Life's Simple 7; aging; cardiovascular health; frontotemporal dementia; genetic dementia; lifestyle behaviors; modifiable risk; neuropsychology.

MeSH terms

  • Aged
  • Brain / diagnostic imaging
  • Brain / pathology
  • Cognitive Dysfunction / genetics
  • Cognitive Dysfunction / pathology
  • Disease Progression*
  • Female
  • Frontotemporal Lobar Degeneration* / genetics
  • Frontotemporal Lobar Degeneration* / pathology
  • Heterozygote
  • Humans
  • Magnetic Resonance Imaging
  • Male
  • Middle Aged
  • Neuroimaging
  • Neuropsychological Tests* / statistics & numerical data
  • White Matter / diagnostic imaging
  • White Matter / pathology