Psychosocial and behavioral determinants of immune aging
This thesis explored the hypothesis that cytomegalovirus (CMV) infection and its reactivation may be a shared mechanism linking psychosocial and behavioral factors with the age-associated decline in immunity, known as immunosenescence. The first empirical chapter (Chapter 3) showed that psychologica...
Main Author: | |
---|---|
Published: |
University of Birmingham
2015
|
Subjects: | |
Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636838 |
id |
ndltd-bl.uk-oai-ethos.bl.uk-636838 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-bl.uk-oai-ethos.bl.uk-6368382019-04-03T06:42:14ZPsychosocial and behavioral determinants of immune agingRector, Jerrald L.2015This thesis explored the hypothesis that cytomegalovirus (CMV) infection and its reactivation may be a shared mechanism linking psychosocial and behavioral factors with the age-associated decline in immunity, known as immunosenescence. The first empirical chapter (Chapter 3) showed that psychological stress factors were positively associated with CMV reactivation, as measured by increased CMV-specific IgG antibodies (CMV-IgG) among those infected, while socioeconomic and lifestyle factors were associated with CMV infection rates. Chapter 4 investigated personality traits and revealed that increased neuroticism predicted elevated odds of CMV infection and higher conscientiousness was associated with lower CMV-IgG levels. Chapter 5 demonstrated that more frequent physical activity was associated with lower levels of highly-differentiated T-cells, but this association was reduced to non-significance by adjustment for CMV infection. Chapter 6 showed that dysregulated glucose metabolism, measured as higher glycated hemoglobin levels, was associated with increased highly-differentiated T-cells in CMV-infected individuals. Furthermore, hyperglycemia interacted with CMV infection for a further increased accumulation of these cells. In sum, these results suggest that CMV and psychosocial and behavioral factors co-determine the progression of immunosenescence, and that CMV reactivation may reflect imbalance among these factors. Thus, CMV reactivation is proposed as a common pathway in psychobiological relationships with immunosenescence.616.07QR180 ImmunologyUniversity of Birminghamhttps://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636838http://etheses.bham.ac.uk//id/eprint/5654/Electronic Thesis or Dissertation |
collection |
NDLTD |
sources |
NDLTD |
topic |
616.07 QR180 Immunology |
spellingShingle |
616.07 QR180 Immunology Rector, Jerrald L. Psychosocial and behavioral determinants of immune aging |
description |
This thesis explored the hypothesis that cytomegalovirus (CMV) infection and its reactivation may be a shared mechanism linking psychosocial and behavioral factors with the age-associated decline in immunity, known as immunosenescence. The first empirical chapter (Chapter 3) showed that psychological stress factors were positively associated with CMV reactivation, as measured by increased CMV-specific IgG antibodies (CMV-IgG) among those infected, while socioeconomic and lifestyle factors were associated with CMV infection rates. Chapter 4 investigated personality traits and revealed that increased neuroticism predicted elevated odds of CMV infection and higher conscientiousness was associated with lower CMV-IgG levels. Chapter 5 demonstrated that more frequent physical activity was associated with lower levels of highly-differentiated T-cells, but this association was reduced to non-significance by adjustment for CMV infection. Chapter 6 showed that dysregulated glucose metabolism, measured as higher glycated hemoglobin levels, was associated with increased highly-differentiated T-cells in CMV-infected individuals. Furthermore, hyperglycemia interacted with CMV infection for a further increased accumulation of these cells. In sum, these results suggest that CMV and psychosocial and behavioral factors co-determine the progression of immunosenescence, and that CMV reactivation may reflect imbalance among these factors. Thus, CMV reactivation is proposed as a common pathway in psychobiological relationships with immunosenescence. |
author |
Rector, Jerrald L. |
author_facet |
Rector, Jerrald L. |
author_sort |
Rector, Jerrald L. |
title |
Psychosocial and behavioral determinants of immune aging |
title_short |
Psychosocial and behavioral determinants of immune aging |
title_full |
Psychosocial and behavioral determinants of immune aging |
title_fullStr |
Psychosocial and behavioral determinants of immune aging |
title_full_unstemmed |
Psychosocial and behavioral determinants of immune aging |
title_sort |
psychosocial and behavioral determinants of immune aging |
publisher |
University of Birmingham |
publishDate |
2015 |
url |
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636838 |
work_keys_str_mv |
AT rectorjerraldl psychosocialandbehavioraldeterminantsofimmuneaging |
_version_ |
1719014175796101120 |