Use this URL to cite or link to this record in EThOS:
Title: A study of cytomegalovirus infection, cognitive ability and immunosenescence in older adults
Author: Firth, Charlotte Miriam
ISNI:       0000 0004 5361 2094
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2015
Availability of Full Text:
Access from EThOS:
Access from Institution:
Cytomegalovirus (CMV) is ubiquitous and the incidence of human infection increases with age. CMV exacerbates immunosenescence and is associated with increased mortality and morbidity in older adults. Cognitive decline in older generations causes great personal and financial burden. Here, examination of the Lothian Birth Cohort (1936) establishes an association between higher CMV IgG tires and a decline in general cognitive ability. This work also further defines the influence of CMV and Epstein-Barr virus (EBV) infection upon immune repertoire. Analysis of the 1000 Elders cohort in Birmingham demonstrates that CMV-and EBV-specific T cell responses remain stable over a period of ten years. However, CMV seronegative older adults display higher EBV viral loads compared to CMV seropositive individuals despite a similar frequency of EBV-specific T cell responses in both groups. In addition, CMV serostatus does not appear to influence the phenotype of EBV-specific T cell responses. Collectively, this study defines an association between high CMV IgG titres and decreased cognitive ability in older adults and demonstrates differential control of EBV by CMV seropositive and negative adults. High EBV viral loads may impact negatively upon the health of older adults; this should be studied further in future work.
Supervisor: Not available Sponsor: Age UK
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: RC0254 Neoplasms. Tumors. Oncology (including Cancer) ; RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry