Movatterモバイル変換


[0]ホーム

URL:


Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
Thehttps:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

NIH NLM Logo
Log inShow account info
Access keysNCBI HomepageMyNCBI HomepageMain ContentMain Navigation
pubmed logo
Advanced Clipboard
User Guide

Full text links

Silverchair Information Systems full text link Silverchair Information Systems
Full text links

Actions

Share

.2008 Feb;63(2):190-5.
doi: 10.1093/gerona/63.2.190.

Higher levels and blunted diurnal variation of cortisol in frail older women

Affiliations

Higher levels and blunted diurnal variation of cortisol in frail older women

Ravi Varadhan et al. J Gerontol A Biol Sci Med Sci.2008 Feb.

Abstract

Background: Frailty is an important geriatric condition with increased vulnerability to stressors (e.g., infection and injury) and for developing functional dependence and mortality. Impairments in signaling pathways, including neuroendocrine alterations, are thought to be involved in the etiology of frailty, but have not been well characterized to date. We evaluated whether higher levels and blunted diurnal variation of salivary cortisol are cross-sectionally associated with frailty burden.

Methods: Two hundred fourteen community-dwelling women, 80-90 years old, from the Women's Health and Aging Study participated in this study between 2004 and 2005. Seven saliva samples were collected for cortisol measurement over a 24-hour period. Main outcomes were awakening, evening, and overall mean cortisol; diurnal amplitude; and rate of decline of cortisol level during morning hours. All cortisol concentrations were log-transformed. Frailty burden was calculated, based on a previously validated tool, as the number (0-5) of the following criteria present: weakness, exhaustion, weight loss, slowness, and inactivity.

Results: Significant positive associations were found between frailty burden and evening cortisol (beta = 0.11, p =.04), and between frailty burden and 24-hour mean cortisol (beta = 0.07, p =.03). Increasing frailty burden was significantly associated with smaller declines in cortisol during morning hours (beta = 0.04, p =.02). Frailty burden of > or =2 was associated with a smaller diurnal amplitude (beta = -0.34, p =.03). Awakening cortisol was not significantly associated with frailty burden (beta = 0.01, p =.8). All analyses included adjustments for several important confounders.

Conclusions: Our findings provide the first epidemiological evidence that higher levels and blunted diurnal variation of cortisol may be involved in the vulnerability and clinical presentation observed in frail older women.

PubMed Disclaimer

Similar articles

See all similar articles

Cited by

See all "Cited by" articles

Publication types

MeSH terms

Substances

Related information

Grants and funding

LinkOut - more resources

Full text links
Silverchair Information Systems full text link Silverchair Information Systems
Cite
Send To

NCBI Literature Resources

MeSHPMCBookshelfDisclaimer

The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.


[8]ページ先頭

©2009-2025 Movatter.jp