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Circulating Inflammatory Markers Are Associated with Magnetic Resonance Imaging-visible Perivascular Spaces but Not Directly with White Matter Hyperintensities

Overview
Journal Stroke
Specialties Cardiology & Vascular Diseases
Neurology
Date 2014 Jan 9
PMID 24399375
Citations 74
Authors
Benjamin S Aribisala
Stewart Wiseman
Zoe Morris
Maria C Valdes-Hernandez
Natalie A Royle
Susana M Maniega
Alan J Gow
Janie Corley
Mark E Bastin
John Starr
Ian J Deary
Joanna M Wardlaw
Affiliations
Soon will be listed here.
Abstract

Background And Purpose: White matter hyperintensities (WMH) and perivascular spaces (PVS) are features of small vessel disease, found jointly on MRI of older people. Inflammation is a prominent pathological feature of small vessel disease. We examined the association between inflammation, PVS, and WMH in the Lothian Birth Cohort 1936 (N=634).

Methods: We measured plasma fibrinogen, C-reactive protein, and interleukin-6 and rated PVS in 3 brain regions. We measured WMH volumetrically and visually using the Fazekas scale. We derived latent variables for PVS, WMH, and Inflammation from measured PVS, WMH, and inflammation markers and modelled associations using structural equation modelling.

Results: After accounting for age, sex, stroke, and vascular risk factors, PVS were significantly associated with WMH (β=0.47; P<0.0001); Inflammation was weakly but significantly associated with PVS (β=0.12; P=0.048), but not with WMH (β=0.02; P=NS).

Conclusions: Circulating inflammatory markers are weakly associated with MR-visible PVS, but not directly with WMH. Longitudinal studies should examine whether visible PVS predate WMH progression and whether inflammation modulators can prevent small vessel disease.

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