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High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster

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Aging and sleep: physiology and pathophysiology.

Bradley A Edwards¹, Denise M O'Driscoll, Asad Ali

¹Division of Sleep Medicine, Brigham and Women's Hospital and Harvard Medical School, 221 Longwood Ave., Boston, MA 02115, USA. baedwards@partners.org

Seminars in Respiratory and Critical Care Medicine

|October 14, 2010

Summary

As people age, sleep patterns change, leading to increased risks of sleep disorders like obstructive sleep apnea (OSA) and central sleep apnea (CSA). These conditions are linked to serious health issues, impacting the elderly population.

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Area of Science:

Gerontology
Sleep Medicine
Pulmonology

Background:

Aging significantly alters sleep architecture, characterized by reduced slow-wave sleep and increased stage 1 and 2 non-rapid eye movement sleep.
Circadian rhythm shifts in the elderly, such as phase advance, lead to earlier sleep onset and wake times.
Sleep-related respiratory disorders, including obstructive sleep apnea (OSA) and central sleep apnea/Cheyne-Stokes respiration (CSA-CSR), increase with age, particularly in those with congestive heart failure (CHF).

Purpose of the Study:

To review the physiological changes in sleep patterns and needs associated with normal aging.
To examine how aging influences the susceptibility to and outcomes of OSA and CSA-CSR in the elderly, especially those with CHF.

Main Methods:

This review synthesizes current research on age-related sleep changes.
It examines the pathophysiology and clinical implications of sleep-disordered breathing in older adults.

Main Results:

Aging is associated with decreased slow-wave sleep and increased lighter sleep stages due to more frequent arousals.
Elderly individuals often experience a phase advance in their circadian rhythm, resulting in earlier sleep-wake times.
The prevalence of OSA and CHF-associated CSA-CSR rises with age, posing significant health risks.

Conclusions:

Understanding age-related sleep alterations is crucial for pulmonologists managing respiratory disorders in the elderly.
Sleep-disordered breathing in aging populations is linked to hypertension, cardiovascular disease, metabolic disorders, and cognitive impairment.
This review highlights the importance of addressing sleep disturbances in older adults to mitigate associated comorbidities.