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Human blood metabolite timetable indicates internal body time.


ABSTRACT: A convenient way to estimate internal body time (BT) is essential for chronotherapy and time-restricted feeding, both of which use body-time information to maximize potency and minimize toxicity during drug administration and feeding, respectively. Previously, we proposed a molecular timetable based on circadian-oscillating substances in multiple mouse organs or blood to estimate internal body time from samples taken at only a few time points. Here we applied this molecular-timetable concept to estimate and evaluate internal body time in humans. We constructed a 1.5-d reference timetable of oscillating metabolites in human blood samples with 2-h sampling frequency while simultaneously controlling for the confounding effects of activity level, light, temperature, sleep, and food intake. By using this metabolite timetable as a reference, we accurately determined internal body time within 3 h from just two anti-phase blood samples. Our minimally invasive, molecular-timetable method with human blood enables highly optimized and personalized medicine.

SUBMITTER: Kasukawa T 

PROVIDER: S-EPMC3443163 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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Human blood metabolite timetable indicates internal body time.

Kasukawa Takeya T   Sugimoto Masahiro M   Hida Akiko A   Minami Yoichi Y   Mori Masayo M   Honma Sato S   Honma Ken-ichi K   Mishima Kazuo K   Soga Tomoyoshi T   Ueda Hiroki R HR  

Proceedings of the National Academy of Sciences of the United States of America 20120827 37


A convenient way to estimate internal body time (BT) is essential for chronotherapy and time-restricted feeding, both of which use body-time information to maximize potency and minimize toxicity during drug administration and feeding, respectively. Previously, we proposed a molecular timetable based on circadian-oscillating substances in multiple mouse organs or blood to estimate internal body time from samples taken at only a few time points. Here we applied this molecular-timetable concept to  ...[more]

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2020-10-12 | GSE134703 | GEO