Document Detail


Diurnal profiles of salivary cortisol and alpha-amylase change across the adult lifespan: Evidence from repeated daily life assessments.
MedLine Citation:
PMID:  24099860     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Salivary cortisol and alpha-amylase are known to have distinctive diurnal profiles. However, little is known about systematic changes in these biomarkers across the adult lifespan. In a study of 185 participants (aged 20-81 years), time-stamped salivary cortisol and alpha-amylase were collected 7 times/day over 10 days. Samples were taken upon waking, 30min later, and then approximately every 3h until 9pm. Multilevel models showed that older age was associated with increased daily cortisol secretion as indicated by greater area under the curve, attenuated wake-evening slopes, and more pronounced cortisol awakening responses. Further, older age was related to greater daily alpha-amylase output and attenuated wake-evening slopes. No age differences were observed regarding the alpha-amylase awakening response. Our findings may contribute to a better understanding of age-related differences in functioning of stress-related systems.
Authors:
Urs M Nater; Christiane A Hoppmann; Stacey B Scott
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-9-17
Journal Detail:
Title:  Psychoneuroendocrinology     Volume:  -     ISSN:  1873-3360     ISO Abbreviation:  Psychoneuroendocrinology     Publication Date:  2013 Sep 
Date Detail:
Created Date:  2013-10-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7612148     Medline TA:  Psychoneuroendocrinology     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
University of Marburg, Department of Psychology, Marburg 35032, Germany. Electronic address: nater@uni-marburg.de.
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