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Melatonin in sleep disorders and jet-lag
Daniel P Cardinali1, Luis I Brusco, Santiago Pérez Lloret
1Departament of Physiology, Faculty of Medicine, University of Buenos Aires, Argentina. cardinal@mail.retina.ar
Neuro Endocrinology Letters
|May 23, 2002
Summary
Melatonin supplements improve sleep in elderly insomniacs, especially those with Alzheimer's disease (AD). It also helps regulate sleep-wake cycles disrupted by blindness, jet lag, or delayed sleep phase syndrome.
Area of Science:
- Gerontology
- Neuroscience
- Sleep Medicine
Background:
- Sleep disturbances are common in the elderly, often exacerbated by conditions like Alzheimer's disease (AD).
- Urinary 6-sulphatoxymelatonin levels, a marker of melatonin production, decline with age and in chronic diseases such as AD and coronary heart disease.
- Melatonin is a hormone crucial for regulating sleep-wake cycles.
Purpose of the Study:
- To evaluate the efficacy of melatonin in improving sleep parameters in elderly insomniacs.
- To assess the impact of melatonin on benzodiazepine use in this population.
- To explore melatonin's role in synchronizing circadian rhythms.
Main Methods:
- The study involved elderly individuals experiencing insomnia.
- Melatonin treatment was administered to assess its effects on sleep latency and efficiency.
- Benzodiazepine use and sleep-wake cycle patterns were monitored.
Main Results:
- Melatonin treatment significantly decreased sleep latency and increased sleep efficiency in elderly insomniacs.
- These improvements were particularly notable in patients with Alzheimer's disease (AD).
- Melatonin effectively reduced the need for benzodiazepine medication and synchronized sleep-wake cycles in various conditions.
Conclusions:
- Melatonin is an effective therapeutic option for elderly insomnia, including in AD patients.
- Melatonin's chronobiotic effect aids in synchronizing circadian rhythms, beneficial for conditions like blindness, jet lag, and delayed sleep phase syndrome.
- Melatonin may offer a safer alternative to benzodiazepines for managing insomnia in the elderly.
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