Sex and Cardiovascular Function in Relation to Vascular Brain Injury in Patients with Cognitive Complaints

S. Kuipers*, G.J. Biessels, J.P. Greving, R.P. Amier, J. de Bresser, E.E. Bron, W.M. van der Flier, R.J. van der Geest, A.M. Hooghiemstra, R.J. van Oostenbrugge, M.J.P. van Osch, L.J. Kappelle, L.G. Exalto, Heart-Brain Connection Consortium

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background: Emerging evidence shows sex differences in manifestations of vascular brain injury in memory clinic patients. We hypothesize that this is explained by sex differences in cardiovascular function.Objective: To assess the relation between sex and manifestations of vascular brain injury in patients with cognitive complaints, in interaction with cardiovascular function.Methods: 160 outpatient clinic patients (68.8 +/- 8.5 years, 38% female) with cognitive complaints and vascular brain injury from the Heart-Brain Connection study underwent a standardized work-up, including heart-brain MRI. We calculated sex differences in vascular brain injury (lacunar infarcts, non-lacunar infarcts, white matter hyperintensities [WMHs], and microbleeds) and cardiovascular function (arterial stiffness, cardiac index, left ventricular [LV] mass index, LV mass-to-volume ratio and cerebral blood flow). In separate regression models, we analyzed the interaction effect between sex and cardiovascular function markers on manifestations of vascular brain injury with interaction terms (sex*cardiovascular function marker).Results: Males had more infarcts, whereas females tended to have larger WMH-volumes. Males had higher LV mass indexes and LV mass-to-volume ratios and lower CBF values compared to females. Yet, we found no interaction effect between sex and individual cardiovascular function markers in relation to the different manifestations of vascular brain injury (p-values interaction terms > 0.05).Conclusion: Manifestations of vascular brain injury in patients with cognitive complaints differed by sex. There was no interaction between sex and cardiovascular function, warranting further studies to explain the observed sex differences in injury patterns.
Original languageEnglish
Pages (from-to)261-271
Number of pages11
JournalJournal of Alzheimer's Disease
Volume84
Issue number1
DOIs
Publication statusPublished - 2021

Keywords

  • Cardiovascular function
  • cerebrovascular disorders
  • cognitive dysfunction
  • female
  • male
  • sex
  • vascular brain injury
  • SMALL VESSEL DISEASE
  • IMPAIRMENT
  • MRI
  • AGE
  • DISORDERS
  • PRESSURE
  • MARKERS
  • STROKE
  • WOMEN
  • SCALE

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