Circadian rhythm in recognition threshold of salt taste in healthy subjects
Abstract
The circadian rhythm in recognition threshold of salt taste was examined in six healthy young subjects. Plasma aldosterone (PA) and cortisol concentrations, plasma renin activity (PRA), salivary sodium concentration, and salt recognition thresholds were measured every 3 h for a 24-h period. The salt recognition threshold and salivary sodium concentration exhibited similar circadian rhythms, with the lowest values recorded in the afternoon. Positive correlations were observed between the recognition threshold and salivary sodium (P less than 0.001) and between cortisol and PA (P less than 0.001). There was no correlation between PRA and PA. A negative correlation was observed between PA and salivary sodium concentration (P less than 0.01). These data indicate that the recognition threshold for salt taste has a circadian rhythm in young healthy subjects. This rhythm appears to be related to daily variations in the plasma aldosterone concentration and its subsequent effects on salivary sodium concentration.
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The salt recognition threshold exhibits a circadian variation with the lowest values recorded in the afternoon.
“For example, the salt recognition threshold was found to exhibit a circadian variation with the lowest values recorded in the afternoon [88].”
From Human thermal perception and time of day: A review (2021) · cites this paper as [88]
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“One study indicated that recognition thresholds for salt taste and salivary sodium concentration exhibited similar circadian variations (16).”
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- Authors
- Fujimura, A., Kajiyama, H., Tateishi, T., & Ebihara, A.
- Affiliations
- Jichi Medical University (JP)
- Venue
- American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
- Publisher
- American Physiological Society
- Published
- 1990-11-01
- Volume
- 259
- Issue
- 5
- Pages
- R931-R935
- ISSN
- 0363-6119 (ISSN-L)
- 1522-1490
- OpenAlex
- W1887776393
- Cited by
- 27
- References
- 0
- Citations by year
- 2025: 1 · 2023: 1 · 2022: 1 · 2021: 5 · 2020: 1 · 2019: 2 · 2018: 3 · 2017: 1 · 2016: 2 · 2015: 1 · 2013: 1 · 2012: 1
- FWCI
- 0.97
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- American Journal of Physiology-Regulatory, Integrative and Comparative Physiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Nursing › Nutrition and Dietetics › Biochemical Analysis and Sensing Techniques
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
- Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
- Keywords
- circadian rhythm, salty taste, taste recognition threshold, plasma aldosterone, cortisol, plasma renin activity, salivary sodium, sodium ion detection, taste sensitivity
- MeSH terms
- Adult, Aldosterone, Circadian Rhythm, Humans, Hydrocortisone, Male, Osmolar Concentration, Reference Values, Renin, Saliva, Sensory Thresholds, Sodium, Sodium Chloride, Taste
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