Turner, James Edward (2011)
Ph.D. thesis, University of Birmingham.
This thesis investigated markers of oxidative stress and immunosenescence in healthy adults. The results presented represent several novel findings which support the notion that oxidative stress and infection with micro-organisms shape our biology and can accelerate aspects of ageing. Acute exercise of high intensity was shown to cause alterations in the cellular composition of blood, which was most pronounced in lymphocyte sub-populations important for immunosurveillance. This exercise also resulted in increased markers of oxidative stress in lymphocytes, and resulted in a whole body oxidative stress, which was more pronounced and prolonged, following ultra-endurance exercise. Studies also showed that infection with a highly prevalent and asymptomatic herpes virus, Cytomegalovirus (CMV), shapes our immune biology in two significant ways. First, CMV amplified the magnitude and kinetics of lymphocyte responses to exercise, which could potentially facilitate immune surveillance, or aggravate inflammatory processes. Second, CMV was seen to drive the development of an ‘Immune Risk Profile’ in young adults, characterised by increased inflammatory activity and smaller responses to vaccination. These outcomes are associated with frailty, cognitive decline, and mortality in the elderly.
This unpublished thesis/dissertation is copyright of the author and/or third parties. The intellectual property rights of the author or third parties in respect of this work are as defined by The Copyright Designs and Patents Act 1988 or as modified by any successor legislation. Any use made of information contained in this thesis/dissertation must be in accordance with that legislation and must be properly acknowledged. Further distribution or reproduction in any format is prohibited without the permission of the copyright holder.
Repository Staff Only: item control page