Rapid suppression of S-PTH by oral calcitriol and calcium in healthy premenopausal women

REFERENCES

• Avioli LV, McDonald JE, Lee SW. The influence of age on the intestinal absorption of 47-Ca absorp-tion in post-menopausal osteoporosis. J Clin Invest 1965; 44: 1960–7.
   Google Scholar
• Ebeling PR, Sandgren ME, DiMagno EP, Lane AW, DeLuca HF, Riggs BL. Evidence of an age-related decrease in intestinal responsiveness to vitamin D: relationship between serum 1,25-dihydroxyvitamin D3 and intestinal vitamin D receptor concentrations in normal women. J Clin Endocrinol Metab 1992; 75: 176–82.
   PubMed Web of Science ®Google Scholar
• Kinyamu HK, Gallagher JC, Rafferty KA, Balhom KE. Dietary calcium and vitamin D intake in elderly women: effect on serum parathyroid hor-mone and vitamin D metabolites. Am J Clin Nutr 1998; 67: 342–8.
   PubMed Web of Science ®Google Scholar
• Gallagher JC, Riggs BL, Eisman J, Hamstra A, Arnaud SB, DeLuca HF. Intestinal calcium absorption and serum vitamin D metabolites in normal subjects and osteoporotic patients: effect of age and dietary calcium. J Clin Invest 1979; 64: 729–6.
   PubMed Web of Science ®Google Scholar
• Riggs BL, Melton U. Involutional osteoporosis. N Engl J Med 1986; 314: 1676–86.
   PubMed Web of Science ®Google Scholar
• Brazier M, Kamel S, Maamer M, Agbomson F, Elesper I, Garabedian M, et al. Markers of bone remodeling in the elderly subject: effects of vitamin D insufficiency and its correction. J Bone Miner Res 1995; 10: 1753–61.
   PubMed Web of Science ®Google Scholar
• Riggs BL, O'Fallon WM, Muhs J, O'Connor MK, Kumar R, Melton U. Long-term effects of calcium supplementation on serum parathyroid hormone level, bone turnover, and bone loss in elderly women. J Bone Miner Res 1998; 13: 168–74.
   PubMed Web of Science ®Google Scholar
• Toning 0, Bucht E, Sjoberg HE. Plasma calcitonin response to a calcium clamp. Influence of sex and age. Horm Metab Res 1985; 17: 536–9.
   Google Scholar
• Schwarz P, Sorensen HA, McNair P, Transbol I. Cica-clamp technique: a method for quantifying parathyroid hormone secretion: a sequential citrate and calcium clamp study. Eur J Clin Invest 1993; 23: 546–53.
   PubMed Web of Science ®Google Scholar
• Herfarth K, Schmidt GH, Graf S, Maier A. Circadian rhythm and pulsatility of parathyroid hormone secretion in man. Clin Endocrinol Oxf 1992; 37: 511–9.
   PubMed Web of Science ®Google Scholar
• Calvo MS, Eastell R, Offord KP, Bergstrahl EJ, Burritt MF. Circadian variation in ionized calcium and intact parathyroid hormone: evidence for sex differences in calcium homeostasis. J Clin Endocrinol Metab 1991; 72: 69–76.
   Google Scholar
• Schmitt CP, Schaefer F, Bruch A, Veldhuis JD, Schmidt-Gyak H, Stein G, et al. Control of pulsa-tile and tonic parathyroid hormone secretion by ionized calcium. J Clin Endocrinol Metab 1996; 81: 4236–43.
   Google Scholar
• Dempster DW, Cosman F, Parisien M, Shen V, Lindsay R. Anabolic actions of parathyroid hormone on bone. Endocr Rev 1993; 14: 690–9.
   Google Scholar
• Mosekilde Li, Sogárd CH, Danielsen CC, Toning 0, Nilsson MHL. The anabolic effects of human parathyroid hormone (hPTH) on rat ver-tebral body mass is also reflected in the quality of bone, assessed by biomechanical testing. A com-parison study between hPTH 1-34 and hPTH 1-84. Endocrinology 1991; 129: 421–8.
   Google Scholar
• Ejerstedt C, Andreassen TT, Oxlund H, Jorgensen PH, Bak B, Torring 0, Nilsson MHL. Parathyroid hormone (1-34) and (1-84) increase the mechanical strength and thickness also of corti-cal bone. J Bone Miner Res 1993; 8: 1097–101.
   Google Scholar
• Chapuy MC, Preziosi P, Maamer M, Arnaud S, Galan P, Hercberg S, et al. Prevalence of vitamin D insufficiency in an adult normal population. Osteoporos Int 1997; 7: 439–43.
   PubMed Web of Science ®Google Scholar
• Melin AL, Wilske J, Ringertz H, Saaf M. Vitamin D status, parathyroid function and femoral bone density in an elderly Swedish living at home. Aging (Milano) 1999; 11:200–7.
   PubMedGoogle Scholar
• Lips P, Graafmans WC, Ooms ME, Bezemer PD, Bouter LM. Vitamin D supplementation and fracture incidence in elderly persons. A randomized, placebo-controlled clinical trial. Ann Intern Med 1996; 124: 400–6.
   Google Scholar
• Ooms ME, Lips P, Roos JC, van der Vijgh WJ, Popp-Snijders C, Bezemer PD, et al. Prevention of bone loss by vitamin D supplementation in elderly women: a randomized double-blind trial. J Clin Endocrinol Metab 1995; 80: 1052–8.
   Google Scholar
• Francis RM, Boyle IT, Moniz C, Sutcliffe AM, Davis BS, Beastall GH, et al. A comparison of the effects of alfacalcidol treatment and vitamin D2 supplementation on calcium absorption in elderly women with vertebral fractures. Osteoporos Int 1996; 6: 284–90.
   PubMedGoogle Scholar
• Chapuy MC, Arlot ME, Duboeuf F, Brun J, Crouzet B, Arnaud S, et al. Vitamin D3 and calcium to prevent hip fractures in the elderly women. N Engl J Med 1992; 327: 1637–42.
   PubMed Web of Science ®Google Scholar
• Tilyard MW, Spears GF, Thomson J, Dovey S. Treatment of postmenopausal osteoporosis with calcitriol or calcium. N Engl J Med 1992; 326: 357–62.
   PubMed Web of Science ®Google Scholar
• Sairanen S, Karkkainen M, Tahtela R, Laitinen K, Makela P, Lamberg-Allardt C, et al. Bone mass and markers of bone and calcium metabolism in postmenopausal women treated with 1,25-dihydroxyvitamin D (Calcitriol) for four years. Calcif Tissue Int 2000; 67: 122–7.
   Google Scholar
• Johnson JA, Kumar R. Renal and intestinal cal-cium transport: roles of vitamin D and vitamin D-dependent calcium binding proteins. Semin Nephrol 1994; 14: 119–28.
   PubMedGoogle Scholar
• Zerwekh JE, Sakhaee K, Pak CY. Utility and limitation of calciuric response to oral calcium load as a measure of intestinal calcium absorption: comparison with isotopic fractional calcium absorption. Invest Urol 1981; 19: 161–4.
   Google Scholar
• Silver J, Naveh MT, Mayer H, Schmelzer HJ, Popovtzer MM. Regulation by vitamin D metab-olites of parathyroid hormone gene transcription in vivo in the rat. J Clin Invest 1986; 78: 1296–01.
   Google Scholar
• Russell J, Bar A, Sherwood LM, Hurwitz S. Interaction between calcium and 1,25-dihydroxy-vitamin D3 in the regulation of preproparathyroid hormone and vitamin D receptor messenger ribo-nucleic acid in avian parathyroids. Endocrinology 1993; 132:2639–44.
   PubMed Web of Science ®Google Scholar
• Heaney RP, Barger LM, Dowell MS, Chen TC, Holick MF. Calcium absorptive effects of vitamin D and its major metabolites. J Clin Endocrinol Metab 1997; 82: 4111–6.
   Google Scholar
• Copenhagen water supply. Yearly status 1998; report 1: 1–27. Copenhagen, Denmark.
   Google Scholar