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The Circadian Rhythm of Osteoprotegerin and Its Association with Parathyroid Hormone Secretion
Author(s) -
Franklin Joseph,
Belinda Chan,
Benjamin H. Durham,
Aftab Ahmad,
Sobhan Vinjamuri,
J.A. Gallagher,
Jiten Vora,
William D. Fraser
Publication year - 2007
Publication title -
the journal of clinical endocrinology and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.206
H-Index - 353
eISSN - 1945-7197
pISSN - 0021-972X
DOI - 10.1210/jc.2006-1832
Subject(s) - medicine , endocrinology , circadian rhythm , osteoprotegerin , parathyroid hormone , bone remodeling , menopause , n terminal telopeptide , hormone , calcium , chemistry , receptor , osteocalcin , alkaline phosphatase , biochemistry , enzyme , activator (genetics)
Osteoclast resorptive activity, which is known to demonstrate circadian rhythmicity, is regulated by various endocrine hormones and cytokines. PTH suppresses osteoprotegerin (OPG), a regulator of osteoclast activity that has recently been shown to have a circadian rhythm in healthy controls. We studied the differences in the relationship between PTH, OPG, and type I collagen C-telopeptide (betaCTX) over a 24-h period in premenopausal women, elderly postmenopausal women, and elderly men.

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