Common infections and neuroimaging markers of dementia in three UK cohort studies.
Alzheimers Dement
; 20(3): 2128-2142, 2024 03.
Article
en En
| MEDLINE
| ID: mdl-38248636
ABSTRACT
INTRODUCTION:
We aimed to investigate associations between common infections and neuroimaging markers of dementia risk (brain volume, hippocampal volume, white matter lesions) across three population-based studies.METHODS:
We tested associations between serology measures (pathogen serostatus, cumulative burden, continuous antibody responses) and outcomes using linear regression, including adjustments for total intracranial volume and scanner/clinic information (basic model), age, sex, ethnicity, education, socioeconomic position, alcohol, body mass index, and smoking (fully adjusted model). Interactions between serology measures and apolipoprotein E (APOE) genotype were tested. Findings were meta-analyzed across cohorts (Nmain = 2632; NAPOE-interaction = 1810).RESULTS:
Seropositivity to John Cunningham virus associated with smaller brain volumes in basic models (ß = -3.89 mL [-5.81, -1.97], Padjusted < 0.05); these were largely attenuated in fully adjusted models (ß = -1.59 mL [-3.55, 0.36], P = 0.11). No other relationships were robust to multiple testing corrections and sensitivity analyses, but several suggestive associations were observed.DISCUSSION:
We did not find clear evidence for relationships between common infections and markers of dementia risk. Some suggestive findings warrant testing for replication.Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Demencia
/
Neuroimagen
Tipo de estudio:
Etiology_studies
/
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Límite:
Humans
País como asunto:
Europa
Idioma:
En
Año:
2024
Tipo del documento:
Article