The parathyroid hormone circadian rhythm is truly endogenous--a general clinical research center study.

Abstract

While circulating levels of PTH follow a diurnal pattern, it has been unclear whether these changes are truly endogenous or are dictated by external factors that themselves follow a diurnal pattern, such as sleep-wake cycles, light-dark cycles, meals, or posture. We evaluated the diurnal rhythm of PTH in 11 normal healthy male volunteers in our Intensive… (More)

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Cite this paper

@article{Fuleihan1997ThePH, title={The parathyroid hormone circadian rhythm is truly endogenous--a general clinical research center study.}, author={Ghada El-Hajj Fuleihan and Elizabeth B. Klerman and E. N. Brown and Y Choe and Edward Brown and Charles A. Czeisler}, journal={The Journal of clinical endocrinology and metabolism}, year={1997}, volume={82 1}, pages={281-6} }