Infections and brain health in ageing populations

Award Number
225868/Z/22/Z
Award Type
Career Development Awards
Status / Stage
Active
Dates
1 January 2023 -
31 December 2030
Duration (calculated)
07 years 11 months
Funder(s)
Wellcome Trust
Funding Amount
£2,606,632.00
Funder/Grant study page
Wellcome Trust
Contracted Centre
London School of Hygiene & Tropical Medicine
Principal Investigator
Dr Charlotte Warren-Gash
PI Contact
Charlotte.Warren-Gash1@lshtm.ac.uk
PI ORCID
0000-0003-4524-3180
WHO Catergories
High quality epidemiological data
Understanding Underlying Disease
Disease Type
Dementia (Unspecified)

CPEC Review Info
Reference ID321
ResearcherReside Team
Published12/06/2023

Data

Award Number225868/Z/22/Z
Status / StageActive
Start Date20230101
End Date20301231
Duration (calculated) 07 years 11 months
Funder/Grant study pageWellcome Trust
Contracted CentreLondon School of Hygiene & Tropical Medicine
Funding Amount£2,606,632.00

Abstract

The world’s population is ageing rapidly, especially in Asia and Latin America. Maintaining brain health into older age is a major challenge: depression and dementia affect 7% and 5% of adults aged over 60 years respectively. Infections are potentially important, under-recognised, modifiable contributors to poor brain health, whose effects vary across settings.My research aims to analyse relationships between infections and key components of brain health (mental health, cognitive health and sensorimotor function) in older age by applying robust causal inference methods to large, longitudinal datasets. Using a combination of electronic health records from the UK and US, harmonised longitudinal surveys from Mexico, India, the UK and US and multidimensional genetic, social and health data from UK Biobank, I will address three key research questions:What risks do acute infections pose to brain health in UK and US populations?Do relationships between infections and brain health differ in India or Mexico compared to the UK and US?What mediates relationships between infections and brain health? I will supplement epidemiological approaches with Mendelian randomisation and causal mediation analysis to generate fundamental insights into the infection-brain health relationship across populations, with the ultimate goal of improving brain health worldwide.

Aims

Using a combination of electronic health records from the UK and US, harmonised longitudinal surveys from Mexico, India, the UK and US and multidimensional genetic, social and health data from UK Biobank, I will address three key research questions:
– What risks do acute infections pose to brain health in UK and US populations?
– Do relationships between infections and brain health differ in India or Mexico compared to the UK and US?
– What mediates the relationships between infections and brain health?