Diurnal rhythms of urine volume and electrolyte excretion in healthy young men under differing intensities of daytime light exposure

In humans, most renal functions, including urine volume and electrolyte excretions, have a circadian rhythm. Light is a strong circadian entrainment factor and daytime-light exposure is known to affect the circadian rhythm of rectal temperature (RT). The effects of daytime-light exposure on the diur...

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Bibliographic Details
Published in:Scientific reports 2021-06, Vol.11 (1), p.13097-13097, Article 13097
Main Authors: Nakamoto, Isuzu, Uiji, Sayaka, Okata, Rin, Endo, Hisayoshi, Tohyama, Sena, Nitta, Rina, Hashimoto, Saya, Matsushima, Yoshiko, Wakimoto, Junko, Hashimoto, Seiji, Nishiyama, Yukiko, Kanikowska, Dominika, Negoro, Hiromitsu, Wakamura, Tomoko
Format: Article
Language:English
Subjects:
631/443
631/443/319
Circadian rhythm
Circadian rhythms
Daytime
Diurnal
Electrolytes
Entrainment
Excretion
Exposure
Humanities and Social Sciences
Light
Light effects
multidisciplinary
Science
Science (multidisciplinary)
Sodium
Uric acid
Urine
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Summary:In humans, most renal functions, including urine volume and electrolyte excretions, have a circadian rhythm. Light is a strong circadian entrainment factor and daytime-light exposure is known to affect the circadian rhythm of rectal temperature (RT). The effects of daytime-light exposure on the diurnal rhythm of urinary excretion have yet to be clarified. The aim of this study was to clarify whether and how daytime exposure to bright-light affects urinary excretions. Twenty-one healthy men (21–27 years old) participated in a 4-day study involving daytime (08:00–18:00 h) exposure to two light conditions, Dim (
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-92595-0