Cited by 169Circadian rhythm and melatoninSleep and Work-Related FatigueImpact of Light on Environment and Health

Light-induced melatonin suppression: age-related reduction in response to short wavelength light

HERLJEVIC, M, MIDDLETON, B, THAPAN, K, SKENE, D·2005·Experimental Gerontology

Abstract

One of the possible causes of disturbed circadian rhythms and sleep in the elderly may be impaired photic input to the circadian clock. Age-related changes in lens density are known to reduce the transmission of short wavelength light, which has been shown to be most effective in suppressing nocturnal melatonin. The aim of the study therefore was to investigate age-related changes in melatonin suppression in response to short and medium wavelength light. Young premenopausal (n=13) and postmenopausal (n=21) women were exposed to 30 min of monochromatic light at two different wavelengths and irradiances (lambda(max) 456 nm: 3.8 and 9.8 microW/cm(2); lambda(max) 548 nm: 28 and 62 microW/cm(2)). Melatonin suppression was compared across light treatments and between age groups. Significantly reduced melatonin suppression was noted in the elderly subjects following exposure to short wavelength (456 nm) light compared to the young subjects. These results are likely to reflect age-related changes in lens density.

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Crossref · 10.1016/j.exger.2004.12.001

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  • Significantly reduced melatonin suppression was measured in elderly subjects in response to exposure to blue (456 nm) light as compared to the young group.

    “Significantly reduced melatonin suppression was measured in the elderly subjects in response to exposure to blue (456 nm) light as compared to the young group.”

    From The inner clock-Blue light sets the human rhythm (2019) · cites this paper as [48]

  • The finding of reduced melatonin suppression in the elderly is suggested to reflect the age-related changes in lens density.

    “This finding is suggested to reflect the age‐related changes in lens density.”

    From The inner clock-Blue light sets the human rhythm (2019) · cites this paper as [48]

  • Environmental light can adversely impact sleep.

    “There is substantial literature showing that environmental noise228,229 and light230–233 can adversely impact sleep and that neighborhoods that are active at night may directly impact sleep through these.”

    From Sleep, Health, and Society (2017) · cites this paper as [233]

  • Neighborhoods that are active at night may directly impact sleep through environmental noise and light.

    “There is substantial literature showing that environmental noise228,229 and light230–233 can adversely impact sleep and that neighborhoods that are active at night may directly impact sleep through these.”

    From Sleep, Health, and Society (2017) · cites this paper as [233]

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Authors
HERLJEVIC, M., MIDDLETON, B., THAPAN, K., & SKENE, D.
Affiliations
University of Surrey (GB)
Corresponding author
SKENE, D
Venue
Experimental Gerontology
Publisher
Elsevier BV
Published
2005-03
Volume
40
Issue
3
Pages
237-242
ISSN
0531-5565 (ISSN-L)
OpenAlex
W2050381923
Cited by
169
References
32
Citations by year
2026: 8 · 2025: 7 · 2024: 8 · 2023: 5 · 2022: 8 · 2021: 12 · 2020: 5 · 2019: 8 · 2018: 7 · 2017: 11 · 2016: 10 · 2015: 5 · 2014: 9 · 2013: 6 · 2012: 8
FWCI
2.08
Type
journal article
Language
en
Open access
closed
Locations
  • Experimental Gerontology (publishedVersion)
  • PubMed (publishedVersion)
  • Surrey Research Insight Open Access (The University of Surrey) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Physical Sciences › Environmental Science › Global and Planetary Change › Impact of Light on Environment and Health
Keywords
melatonin suppression, short-wavelength light, circadian rhythm, aging, lens density, postmenopausal women, sleep disorders, light irradiance, nocturnal melatonin
MeSH terms
Adult, Female, Humans, Melatonin, Middle Aged, Radiation, Postmenopause, Area Under Curve

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