Does cellular aging relate to patterns of allostasis?. An examination of basal and stress reactive HPA axis activity and telomere length.

A. Janet Tomiyama, Aoife O'Donovan, Jue Lin, Eli Puterman, Alanie Lazaro, Jessica Chan, Firdaus Dhabhar, Owen Wolkowitz, Clemens Kirschbaum, Elizabeth Blackburn, Elissa Epel

Research output: Contribution to journalArticle

116 Citations (Scopus)

Abstract

Long-term exposure to stress and its physiological mediators, in particular cortisol, may lead to impaired telomere maintenance. In this study, we examine if greater cortisol responses to an acute stressor and/or dysregulated patterns of daily cortisol secretion are associated with shorter telomere length. Twenty-three postmenopausal women comprising caregivers for dementia partners (n = 14) and age- and BMI-matched non-caregivers provided home sampling of cortisol-saliva samples at waking, 30. min after waking, and bedtime, and a 12-hour overnight urine collection. They were also exposed to an acute laboratory stressor throughout which they provided saliva samples. Peripheral blood mononuclear cells were isolated from a fasting blood sample and assayed for telomere length. As hypothesized, greater cortisol responses to the acute stressor were associated with shorter telomeres, as were higher overnight urinary free cortisol levels and flatter daytime cortisol slopes. While robust physiological responses to acute stress serve important functions, the long-term consequences of frequent high stress reactivity may include accelerated telomere shortening.

Original languageEnglish (US)
Pages (from-to)40-45
Number of pages6
JournalPhysiology and Behavior
Volume106
Issue number1
DOIs
StatePublished - Apr 12 2012
Externally publishedYes

Fingerprint

Allostasis
Cell Aging
Telomere
Hydrocortisone
Saliva
Telomere Shortening
Urine Specimen Collection
Caregivers
Dementia
Fasting
Blood Cells
Maintenance

Keywords

  • Allostasis
  • Allostatic load
  • Cellular aging
  • Cortisol
  • HPA axis
  • Stress
  • Telomere

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Behavioral Neuroscience

Cite this

Does cellular aging relate to patterns of allostasis?. An examination of basal and stress reactive HPA axis activity and telomere length. / Tomiyama, A. Janet; O'Donovan, Aoife; Lin, Jue; Puterman, Eli; Lazaro, Alanie; Chan, Jessica; Dhabhar, Firdaus; Wolkowitz, Owen; Kirschbaum, Clemens; Blackburn, Elizabeth; Epel, Elissa.

In: Physiology and Behavior, Vol. 106, No. 1, 12.04.2012, p. 40-45.

Research output: Contribution to journalArticle

Tomiyama, AJ, O'Donovan, A, Lin, J, Puterman, E, Lazaro, A, Chan, J, Dhabhar, F, Wolkowitz, O, Kirschbaum, C, Blackburn, E & Epel, E 2012, 'Does cellular aging relate to patterns of allostasis?. An examination of basal and stress reactive HPA axis activity and telomere length.', Physiology and Behavior, vol. 106, no. 1, pp. 40-45. https://doi.org/10.1016/j.physbeh.2011.11.016
Tomiyama, A. Janet ; O'Donovan, Aoife ; Lin, Jue ; Puterman, Eli ; Lazaro, Alanie ; Chan, Jessica ; Dhabhar, Firdaus ; Wolkowitz, Owen ; Kirschbaum, Clemens ; Blackburn, Elizabeth ; Epel, Elissa. / Does cellular aging relate to patterns of allostasis?. An examination of basal and stress reactive HPA axis activity and telomere length. In: Physiology and Behavior. 2012 ; Vol. 106, No. 1. pp. 40-45.
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