University of Cambridge - Core Metabolomics and Lipidomics Laboratory, University of Cambridge - UK Dementia Research Institute, NHS Foundation Trust - Core Metabolomics and Lipidomics Laboratory, University of Cambridge - UK Dementia Research Institute, University of Cambridge - UK Dementia Research Institute, University of Cambridge - UK Dementia Research Institute, University of Cambridge - UK Dementia Research Institute and NHS Foundation Trust - Metabolic Research Laboratories