Immobilization on the day 14th does not disrupts the basic diurnal rhythm of bone resorption.

C. S. Kim*, Y. Maekawa, M. Fujita, N. Sato, M. Nishimuta, Y. Ishizaki, F. Ohta, H. Fukuoka

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Weight bearing and physical activity are important mechanical stimuli to bone growth and metabolism, and microgravity, such a space flight and/or bed rest, induces bone resorption and bone loss. An increased excretion of urinary Ca, an increased bone resorption and a decreased bone mineral density (BMD) have been observed in bed rest experiment of healthy subjects. Bone resorption markers show the specific circadian rhythms in human. Cross-linked carboxyl-terminal telopeptide of type I collagen (ICTP) and the urinary excretion of deoxypyridinoline (Dpy) are the highest in the early morning and the lowest late at night. Bed rest immobilization might influence these rhythms, due to no mechanical loading with loss of daily life activity. Bone resorption markers in healthy subjects had been compared between before and during bed rest to determine disruption of diurnal rhythms of bone resorption.

本文言語English
ジャーナルJournal of gravitational physiology : a journal of the International Society for Gravitational Physiology
7
2
出版ステータスPublished - 2000

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