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Published in: European Journal of Nutrition 1/2013

01-02-2013 | Original Contribution

Serum level of under-carboxylated osteocalcin and bone mineral density in early menopausal Norwegian women

Authors: Nina Emaus, Nguyen D. Nguyen, Bjørg Almaas, Gro K. Berntsen, Jacqueline R. Center, Monika Christensen, Clara G. Gjesdal, Anne S. Grimsgaard, Tuan V. Nguyen, Laila Salomonsen, John A. Eisman, Vinjar M. Fønnebø

Published in: European Journal of Nutrition | Issue 1/2013

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Abstract

Purpose

Serum level of under-carboxylated osteocalcin (ucOC) is considered a sensitive measure of vitamin K status, and ucOC levels are associated with bone mineral density (BMD) and fracture risk in elderly persons. The aim of this study was to assess the relationship between ucOC and BMD in early menopausal women.

Methods

The data reported here come from the enrolment in a double-blinded placebo-controlled randomized trial comprising 334 healthy Norwegian women between 50 and 60 years, 1–5 years after menopause, not using warfarin or medication known to affect bone metabolism. Total hip, femoral neck, lumbar spine, and total body BMD and serum level of ucOC and total osteocalcin were measured, and information of lifestyle was collected through questionnaires. The association between ucOC and BMD at all measurement sites was assessed by multiple regression analyses adjusting for possible confounding variables.

Results

The absolute serum level of ucOC was significantly and negatively associated with BMD at all measurements sites, both in univariate analyses (p < 0.01) and in multivariate analyses adjusting for years since menopause, smoking status and weight (p < 0.01). However, serum ucOC, expressed as percentage of the total osteocalcin level, was not associated with BMD at any site.

Conclusions

Achievement of adequate vitamin K nutritional intake is important, but ucOC expressed as percentage of total osteocalcin levels as reflection of vitamin K status does not seem to play a central role in determining BMD levels in early menopausal women.
Literature
1.
go back to reference Vermeer C, Braam L (2001) Role of K vitamins in the regulation of tissue calcification. J Bone Miner Metab 19:201–206CrossRef Vermeer C, Braam L (2001) Role of K vitamins in the regulation of tissue calcification. J Bone Miner Metab 19:201–206CrossRef
2.
go back to reference Cockayne S, Adamson J, Lanham-New S, Shearer MJ, Gilbody S, Torgerson DJ (2006) Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials. Arch Intern Med 166:1256–1261CrossRef Cockayne S, Adamson J, Lanham-New S, Shearer MJ, Gilbody S, Torgerson DJ (2006) Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials. Arch Intern Med 166:1256–1261CrossRef
3.
go back to reference Katsuyama H, Otsuki T, Tomita M, Fukunaga M, Fukunaga T, Suzuki N, Saijoh K, Fushimi S, Sunami S (2005) Menaquinone-7 regulates the expressions of osteocalcin, OPG, RANKL and RANK in osteoblastic MC3T3E1 cells. Int J Mol Med 15:231–236 Katsuyama H, Otsuki T, Tomita M, Fukunaga M, Fukunaga T, Suzuki N, Saijoh K, Fushimi S, Sunami S (2005) Menaquinone-7 regulates the expressions of osteocalcin, OPG, RANKL and RANK in osteoblastic MC3T3E1 cells. Int J Mol Med 15:231–236
4.
go back to reference Katsuyama H, Saijoh K, Otsuki T, Tomita M, Fukunaga M, Sunami S (2007) Menaquinone-7 regulates gene expression in osteoblastic MC3T3E1 cells. Int J Mol Med 19:279–284 Katsuyama H, Saijoh K, Otsuki T, Tomita M, Fukunaga M, Sunami S (2007) Menaquinone-7 regulates gene expression in osteoblastic MC3T3E1 cells. Int J Mol Med 19:279–284
5.
go back to reference Schurgers LJ, Vermeer C (2000) Determination of phylloquinone and menaquinones in food. Effect of food matrix on circulating vitamin K concentrations. Haemostasis 30:298–307 Schurgers LJ, Vermeer C (2000) Determination of phylloquinone and menaquinones in food. Effect of food matrix on circulating vitamin K concentrations. Haemostasis 30:298–307
6.
go back to reference Shea MK, Booth SL (2008) Update on the role of vitamin K in skeletal health. Nutr Rev 66:549–557CrossRef Shea MK, Booth SL (2008) Update on the role of vitamin K in skeletal health. Nutr Rev 66:549–557CrossRef
7.
go back to reference Kaneki M, Hedges SJ, Hosoi T, Fujiwara S, Lyons A, Crean SJ, Ishida N, Nakagawa M, Takechi M, Sano Y, Mizuno Y, Hoshino S, Miyao M, Inoue S, Horiki K, Shiraki M, Ouchi Y, Orimo H (2001) Japanese fermented soybean food as the major determinant of the large geographic difference in circulating levels of vitamin K2: possible implications for hip-fracture risk. Nutrition 17:315–321CrossRef Kaneki M, Hedges SJ, Hosoi T, Fujiwara S, Lyons A, Crean SJ, Ishida N, Nakagawa M, Takechi M, Sano Y, Mizuno Y, Hoshino S, Miyao M, Inoue S, Horiki K, Shiraki M, Ouchi Y, Orimo H (2001) Japanese fermented soybean food as the major determinant of the large geographic difference in circulating levels of vitamin K2: possible implications for hip-fracture risk. Nutrition 17:315–321CrossRef
8.
go back to reference Zittermann A (2001) Effects of vitamin K on calcium and bone metabolism. Curr Opin Clin Nutr Metab Care 4:483–487CrossRef Zittermann A (2001) Effects of vitamin K on calcium and bone metabolism. Curr Opin Clin Nutr Metab Care 4:483–487CrossRef
10.
go back to reference Nimptsch K, Hailer S, Rohrmann S, Gedrich K, Wolfram G, Linseisen J (2007) Determinants and correlates of serum undercarboxylated osteocalcin. Ann Nutr Metab 51:563–570CrossRef Nimptsch K, Hailer S, Rohrmann S, Gedrich K, Wolfram G, Linseisen J (2007) Determinants and correlates of serum undercarboxylated osteocalcin. Ann Nutr Metab 51:563–570CrossRef
11.
go back to reference Gundberg CM, Nieman SD, Abrams S, Rosen H (1998) Vitamin K status and bone health: an analysis of methods for determination of undercarboxylated osteocalcin. J Clin Endocrinol Metab 83:3258–3266CrossRef Gundberg CM, Nieman SD, Abrams S, Rosen H (1998) Vitamin K status and bone health: an analysis of methods for determination of undercarboxylated osteocalcin. J Clin Endocrinol Metab 83:3258–3266CrossRef
12.
go back to reference McKeown NM, Jacques PF, Gundberg CM, Peterson JW, Tucker KL, Kiel DP, Wilson PW, Booth SL (2002) Dietary and nondietary determinants of vitamin K biochemical measures in men and women. J Nutr 132:1329–1334 McKeown NM, Jacques PF, Gundberg CM, Peterson JW, Tucker KL, Kiel DP, Wilson PW, Booth SL (2002) Dietary and nondietary determinants of vitamin K biochemical measures in men and women. J Nutr 132:1329–1334
13.
go back to reference Szulc P, Arlot M, Chapuy MC, Duboeuf F, Meunier PJ, Delmas PD (1994) Serum undercarboxylated osteocalcin correlates with hip bone mineral density in elderly women. J Bone Miner Res 9:1591–1595CrossRef Szulc P, Arlot M, Chapuy MC, Duboeuf F, Meunier PJ, Delmas PD (1994) Serum undercarboxylated osteocalcin correlates with hip bone mineral density in elderly women. J Bone Miner Res 9:1591–1595CrossRef
14.
go back to reference Szulc P, Chapuy MC, Meunier PJ, Delmas PD (1993) Serum undercarboxylated osteocalcin is a marker of the risk of hip fracture in elderly women. J Clin Invest 91:1769–1774CrossRef Szulc P, Chapuy MC, Meunier PJ, Delmas PD (1993) Serum undercarboxylated osteocalcin is a marker of the risk of hip fracture in elderly women. J Clin Invest 91:1769–1774CrossRef
15.
go back to reference Vergnaud P, Garnero P, Meunier PJ, Breart G, Kamihagi K, Delmas PD (1997) Undercarboxylated osteocalcin measured with a specific immunoassay predicts hip fracture in elderly women: the EPIDOS Study. J Clin Endocrinol Metab 82:719–724CrossRef Vergnaud P, Garnero P, Meunier PJ, Breart G, Kamihagi K, Delmas PD (1997) Undercarboxylated osteocalcin measured with a specific immunoassay predicts hip fracture in elderly women: the EPIDOS Study. J Clin Endocrinol Metab 82:719–724CrossRef
16.
go back to reference Binkley N, Harke J, Krueger D, Engelke J, Vallarta-Ast N, Gemar D, Checovich M, Chappell R, Suttie J (2009) Vitamin K treatment reduces undercarboxylated osteocalcin but does not alter bone turnover, density, or geometry in healthy postmenopausal North American women. J Bone Miner Res 24:983–991CrossRef Binkley N, Harke J, Krueger D, Engelke J, Vallarta-Ast N, Gemar D, Checovich M, Chappell R, Suttie J (2009) Vitamin K treatment reduces undercarboxylated osteocalcin but does not alter bone turnover, density, or geometry in healthy postmenopausal North American women. J Bone Miner Res 24:983–991CrossRef
17.
go back to reference Booth SL, Dallal G, Shea MK, Gundberg C, Peterson JW, Dawson-Hughes B (2008) Effect of vitamin K supplementation on bone loss in elderly men and women. J Clin Endocrinol Metab 93:1217–1223CrossRef Booth SL, Dallal G, Shea MK, Gundberg C, Peterson JW, Dawson-Hughes B (2008) Effect of vitamin K supplementation on bone loss in elderly men and women. J Clin Endocrinol Metab 93:1217–1223CrossRef
18.
go back to reference Emaus N, Gjesdal CG, Almas B, Christensen M, Grimsgaard AS, Berntsen GK, Salomonsen L, Fonnebo V (2010) Vitamin K2 supplementation does not influence bone loss in early menopausal women: a randomised double-blind placebo-controlled trial. Osteoporos Int 21:1731–1740CrossRef Emaus N, Gjesdal CG, Almas B, Christensen M, Grimsgaard AS, Berntsen GK, Salomonsen L, Fonnebo V (2010) Vitamin K2 supplementation does not influence bone loss in early menopausal women: a randomised double-blind placebo-controlled trial. Osteoporos Int 21:1731–1740CrossRef
19.
go back to reference Gundberg CM (2009) Vitamin K and bone: past, present, and future. J Bone Miner Res 24:980–982CrossRef Gundberg CM (2009) Vitamin K and bone: past, present, and future. J Bone Miner Res 24:980–982CrossRef
20.
go back to reference Fang Y, Hu C, Tao X, Wan Y, Tao F (2011) Effect of vitamin K on bone mineral density: a meta-analyses of randomized controlled trials. J Bone Miner Metab (E-pub ahead of print) Fang Y, Hu C, Tao X, Wan Y, Tao F (2011) Effect of vitamin K on bone mineral density: a meta-analyses of randomized controlled trials. J Bone Miner Metab (E-pub ahead of print)
21.
go back to reference Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, Dawson-Hughes B (2005) Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials. JAMA 293:2257–2264CrossRef Bischoff-Ferrari HA, Willett WC, Wong JB, Giovannucci E, Dietrich T, Dawson-Hughes B (2005) Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials. JAMA 293:2257–2264CrossRef
22.
go back to reference Booth SL, Broe KE, Peterson JW, Cheng DM, Dawson-Hughes B, Gundberg CM, Cupples LA, Wilson PW, Kiel DP (2004) Associations between vitamin K biochemical measures and bone mineral density in men and women. J Clin Endocrinol Metab 89:4904–4909CrossRef Booth SL, Broe KE, Peterson JW, Cheng DM, Dawson-Hughes B, Gundberg CM, Cupples LA, Wilson PW, Kiel DP (2004) Associations between vitamin K biochemical measures and bone mineral density in men and women. J Clin Endocrinol Metab 89:4904–4909CrossRef
23.
go back to reference Booth SL, Al RA (2008) Determinants of vitamin K status in humans. Vitam Horm 78:1–22CrossRef Booth SL, Al RA (2008) Determinants of vitamin K status in humans. Vitam Horm 78:1–22CrossRef
24.
go back to reference De Laet C, Kanis JA, Oden A, Johanson H, Johnell O, Delmas P, Eisman JA, Kroger H, Fujiwara S, Garnero P, McCloskey EV, Mellstrom D, Melton LJ III, Meunier PJ, Pols HA, Reeve J, Silman A, Tenenhouse A (2005) Body mass index as a predictor of fracture risk: a meta-analysis. Osteoporos Int 16:1330–1338CrossRef De Laet C, Kanis JA, Oden A, Johanson H, Johnell O, Delmas P, Eisman JA, Kroger H, Fujiwara S, Garnero P, McCloskey EV, Mellstrom D, Melton LJ III, Meunier PJ, Pols HA, Reeve J, Silman A, Tenenhouse A (2005) Body mass index as a predictor of fracture risk: a meta-analysis. Osteoporos Int 16:1330–1338CrossRef
25.
go back to reference Kanis JA, Borgstrom F, De Laet C, Johansson H, Johnell O, Jonsson B, Oden A, Zethraeus N, Pfleger B, Khaltaev N (2005) Assessment of fracture risk. Osteoporos Int 16:581–589CrossRef Kanis JA, Borgstrom F, De Laet C, Johansson H, Johnell O, Jonsson B, Oden A, Zethraeus N, Pfleger B, Khaltaev N (2005) Assessment of fracture risk. Osteoporos Int 16:581–589CrossRef
26.
go back to reference Law MR, Hackshaw AK (1997) A meta-analysis of cigarette smoking, bone mineral density and risk of hip fracture: recognition of a major effect. BMJ 315:841–846CrossRef Law MR, Hackshaw AK (1997) A meta-analysis of cigarette smoking, bone mineral density and risk of hip fracture: recognition of a major effect. BMJ 315:841–846CrossRef
27.
go back to reference Wallace BA, Cumming RG (2000) Systematic review of randomized trials of the effect of exercise on bone mass in pre- and postmenopausal women. Calcif Tissue Int 67:10–18CrossRef Wallace BA, Cumming RG (2000) Systematic review of randomized trials of the effect of exercise on bone mass in pre- and postmenopausal women. Calcif Tissue Int 67:10–18CrossRef
28.
go back to reference Szulc P, Chapuy MC, Meunier PJ, Delmas PD (1996) Serum undercarboxylated osteocalcin is a marker of the risk of hip fracture: a three year follow-up study. Bone 18:487–488CrossRef Szulc P, Chapuy MC, Meunier PJ, Delmas PD (1996) Serum undercarboxylated osteocalcin is a marker of the risk of hip fracture: a three year follow-up study. Bone 18:487–488CrossRef
29.
go back to reference Liu G, Peacock M (1998) Age-related changes in serum undercarboxylated osteocalcin and its relationships with bone density, bone quality, and hip fracture. Calcif Tissue Int 62:286–289CrossRef Liu G, Peacock M (1998) Age-related changes in serum undercarboxylated osteocalcin and its relationships with bone density, bone quality, and hip fracture. Calcif Tissue Int 62:286–289CrossRef
30.
go back to reference Zofkova I, Hill M, Palicka V (2003) Association between serum undercarboxylated osteocalcin and bone density and/or quality in early postmenopausal women. Nutrition 19:1001–1003CrossRef Zofkova I, Hill M, Palicka V (2003) Association between serum undercarboxylated osteocalcin and bone density and/or quality in early postmenopausal women. Nutrition 19:1001–1003CrossRef
31.
go back to reference Feskanich D, Weber P, Willett WC, Rockett H, Booth SL, Colditz GA (1999) Vitamin K intake and hip fractures in women: a prospective study. Am J Clin Nutr 69:74–79 Feskanich D, Weber P, Willett WC, Rockett H, Booth SL, Colditz GA (1999) Vitamin K intake and hip fractures in women: a prospective study. Am J Clin Nutr 69:74–79
32.
go back to reference Booth SL, Broe KE, Gagnon DR, Tucker KL, Hannan MT, McLean RR, Dawson-Hughes B, Wilson PW, Cupples LA, Kiel DP (2003) Vitamin K intake and bone mineral density in women and men. Am J Clin Nutr 77:512–516 Booth SL, Broe KE, Gagnon DR, Tucker KL, Hannan MT, McLean RR, Dawson-Hughes B, Wilson PW, Cupples LA, Kiel DP (2003) Vitamin K intake and bone mineral density in women and men. Am J Clin Nutr 77:512–516
33.
go back to reference Sato Y, Honda Y, Kuno H, Oizumi K (1998) Menatetrenone ameliorates osteopenia in disuse-affected limbs of vitamin D- and K-deficient stroke patients. Bone 23:291–296CrossRef Sato Y, Honda Y, Kuno H, Oizumi K (1998) Menatetrenone ameliorates osteopenia in disuse-affected limbs of vitamin D- and K-deficient stroke patients. Bone 23:291–296CrossRef
34.
go back to reference Sato Y, Honda Y, Kaji M, Asoh T, Hosokawa K, Kondo I, Satoh K (2002) Amelioration of osteoporosis by menatetrenone in elderly female Parkinson’s disease patients with vitamin D deficiency. Bone 31:114–118CrossRef Sato Y, Honda Y, Kaji M, Asoh T, Hosokawa K, Kondo I, Satoh K (2002) Amelioration of osteoporosis by menatetrenone in elderly female Parkinson’s disease patients with vitamin D deficiency. Bone 31:114–118CrossRef
35.
go back to reference Sato Y, Kanoko T, Satoh K, Iwamoto J (2005) Menatetrenone and vitamin D2 with calcium supplements prevent nonvertebral fracture in elderly women with Alzheimer’s disease. Bone 36:61–68CrossRef Sato Y, Kanoko T, Satoh K, Iwamoto J (2005) Menatetrenone and vitamin D2 with calcium supplements prevent nonvertebral fracture in elderly women with Alzheimer’s disease. Bone 36:61–68CrossRef
36.
go back to reference Shiomi S, Nishiguchi S, Kubo S, Tamori A, Habu D, Takeda T, Ochi H (2002) Vitamin K2 (menatetrenone) for bone loss in patients with cirrhosis of the liver. Am J Gastroenterol 97:978–981CrossRef Shiomi S, Nishiguchi S, Kubo S, Tamori A, Habu D, Takeda T, Ochi H (2002) Vitamin K2 (menatetrenone) for bone loss in patients with cirrhosis of the liver. Am J Gastroenterol 97:978–981CrossRef
37.
go back to reference Yonemura K, Kimura M, Miyaji T, Hishida A (2000) Short-term effect of vitamin K administration on prednisolone-induced loss of bone mineral density in patients with chronic glomerulonephritis. Calcif Tissue Int 66:123–128CrossRef Yonemura K, Kimura M, Miyaji T, Hishida A (2000) Short-term effect of vitamin K administration on prednisolone-induced loss of bone mineral density in patients with chronic glomerulonephritis. Calcif Tissue Int 66:123–128CrossRef
38.
go back to reference Yonemura K, Fukasawa H, Fujigaki Y, Hishida A (2004) Protective effect of vitamins K2 and D3 on prednisolone-induced loss of bone mineral density in the lumbar spine. Am J Kidney Dis 43:53–60CrossRef Yonemura K, Fukasawa H, Fujigaki Y, Hishida A (2004) Protective effect of vitamins K2 and D3 on prednisolone-induced loss of bone mineral density in the lumbar spine. Am J Kidney Dis 43:53–60CrossRef
39.
go back to reference Ishida Y, Kawai S (2004) Comparative efficacy of hormone replacement therapy, etidronate, calcitonin, alfacalcidol, and vitamin K in postmenopausal women with osteoporosis: the yamaguchi osteoporosis prevention study. Am J Med 117:549–555CrossRef Ishida Y, Kawai S (2004) Comparative efficacy of hormone replacement therapy, etidronate, calcitonin, alfacalcidol, and vitamin K in postmenopausal women with osteoporosis: the yamaguchi osteoporosis prevention study. Am J Med 117:549–555CrossRef
40.
go back to reference Iwamoto J, Takeda T, Ichimura S (2000) Effect of combined administration of vitamin D3 and vitamin K2 on bone mineral density of the lumbar spine in postmenopausal women with osteoporosis. J Orthop Sci 5:546–551CrossRef Iwamoto J, Takeda T, Ichimura S (2000) Effect of combined administration of vitamin D3 and vitamin K2 on bone mineral density of the lumbar spine in postmenopausal women with osteoporosis. J Orthop Sci 5:546–551CrossRef
41.
go back to reference Iwamoto J, Takeda T, Ichimura S (2001) Effect of menatetrenone on bone mineral density and incidence of vertebral fractures in postmenopausal women with osteoporosis: a comparison with the effect of etidronate. J Orthop Sci 6:487–492CrossRef Iwamoto J, Takeda T, Ichimura S (2001) Effect of menatetrenone on bone mineral density and incidence of vertebral fractures in postmenopausal women with osteoporosis: a comparison with the effect of etidronate. J Orthop Sci 6:487–492CrossRef
42.
go back to reference Orimo H, Shiraki M, Tomita A, Morii H, Fujita T, Ohata M (1998) Effects of menatetrenone on the bone and calcium metabolism in osteporosis: a double blind placebo controlled study. J Bone Miner Metab 16:106–112CrossRef Orimo H, Shiraki M, Tomita A, Morii H, Fujita T, Ohata M (1998) Effects of menatetrenone on the bone and calcium metabolism in osteporosis: a double blind placebo controlled study. J Bone Miner Metab 16:106–112CrossRef
43.
go back to reference Purwosunu Y, Muharram G, Rachman IA, Reksoprodjo S, Sekizawa A (2006) Vitamin K2 treatment for postmenopausal osteoporosis in Indonesia. J Obstet Gynaecol Res 32:230–234 Purwosunu Y, Muharram G, Rachman IA, Reksoprodjo S, Sekizawa A (2006) Vitamin K2 treatment for postmenopausal osteoporosis in Indonesia. J Obstet Gynaecol Res 32:230–234
44.
go back to reference Shiraki M, Shiraki Y, Aoki C, Miura M (2000) Vitamin K2 (menatetrenone) effectively prevents fractures and sustains lumbar bone mineral density in osteoporosis. J Bone Miner Res 15:515–521CrossRef Shiraki M, Shiraki Y, Aoki C, Miura M (2000) Vitamin K2 (menatetrenone) effectively prevents fractures and sustains lumbar bone mineral density in osteoporosis. J Bone Miner Res 15:515–521CrossRef
45.
go back to reference Katsuyama H, Ideguchi S, Fukunaga M, Fukunaga T, Saijoh K, Sunami S (2004) Promotion of bone formation by fermented soybean (Natto) intake in premenopausal women. J Nutr Sci Vitaminol (Tokyo) 50:114–120CrossRef Katsuyama H, Ideguchi S, Fukunaga M, Fukunaga T, Saijoh K, Sunami S (2004) Promotion of bone formation by fermented soybean (Natto) intake in premenopausal women. J Nutr Sci Vitaminol (Tokyo) 50:114–120CrossRef
46.
go back to reference Iwamoto I, Kosha S, Noguchi S, Murakami M, Fujino T, Douchi T, Nagata Y (1999) A longitudinal study of the effect of vitamin K2 on bone mineral density in postmenopausal women a comparative study with vitamin D3 and estrogen–progestin therapy. Maturitas 31:161–164CrossRef Iwamoto I, Kosha S, Noguchi S, Murakami M, Fujino T, Douchi T, Nagata Y (1999) A longitudinal study of the effect of vitamin K2 on bone mineral density in postmenopausal women a comparative study with vitamin D3 and estrogen–progestin therapy. Maturitas 31:161–164CrossRef
47.
go back to reference Ozuru R, Sugimoto T, Yamaguchi T, Chihara K (2002) Time-dependent effects of vitamin K2 (menatetrenone) on bone metabolism in postmenopausal women. Endocr J 49:363–370CrossRef Ozuru R, Sugimoto T, Yamaguchi T, Chihara K (2002) Time-dependent effects of vitamin K2 (menatetrenone) on bone metabolism in postmenopausal women. Endocr J 49:363–370CrossRef
48.
go back to reference Knapen MH, Schurgers LJ, Vermeer C (2007) Vitamin K2 supplementation improves hip bone geometry and bone strength indices in postmenopausal women. Osteoporos Int 18:963–972CrossRef Knapen MH, Schurgers LJ, Vermeer C (2007) Vitamin K2 supplementation improves hip bone geometry and bone strength indices in postmenopausal women. Osteoporos Int 18:963–972CrossRef
49.
go back to reference Yamauchi M, Yamaguchi T, Nawata K, Takaoka S, Sugimoto T (2010) Relationships between undercarboxylated osteocalcin and vitamin K intakes, bone turnover, and bone mineral density in healthy women. Clin Nutr 29:761–765CrossRef Yamauchi M, Yamaguchi T, Nawata K, Takaoka S, Sugimoto T (2010) Relationships between undercarboxylated osteocalcin and vitamin K intakes, bone turnover, and bone mineral density in healthy women. Clin Nutr 29:761–765CrossRef
50.
go back to reference Koshihara Y, Hoshi K, Ishibashi H, Shiraki M (1996) Vitamin K2 promotes 1alpha, 25(OH)2 vitamin D3-induced mineralization in human periosteal osteoblasts. Calcif Tissue Int 59:466–473 Koshihara Y, Hoshi K, Ishibashi H, Shiraki M (1996) Vitamin K2 promotes 1alpha, 25(OH)2 vitamin D3-induced mineralization in human periosteal osteoblasts. Calcif Tissue Int 59:466–473
51.
go back to reference Miyake N, Hoshi K, Sano Y, Kikuchi K, Tadano K, Koshihara Y (2001) 1, 25-Dihydroxyvitamin D3 promotes vitamin K2 metabolism in human osteoblasts. Osteoporos Int 12:680–687CrossRef Miyake N, Hoshi K, Sano Y, Kikuchi K, Tadano K, Koshihara Y (2001) 1, 25-Dihydroxyvitamin D3 promotes vitamin K2 metabolism in human osteoblasts. Osteoporos Int 12:680–687CrossRef
52.
go back to reference Ushiroyama T, Ikeda A, Ueki M (2002) Effect of continuous combined therapy with vitamin K(2) and vitamin D(3) on bone mineral density and coagulofibrinolysis function in postmenopausal women. Maturitas 41:211–221CrossRef Ushiroyama T, Ikeda A, Ueki M (2002) Effect of continuous combined therapy with vitamin K(2) and vitamin D(3) on bone mineral density and coagulofibrinolysis function in postmenopausal women. Maturitas 41:211–221CrossRef
53.
go back to reference Yasui T, Miyatani Y, Tomita J, Yamada M, Uemura H, Miura M, Irahara M (2006) Effect of vitamin K2 treatment on carboxylation of osteocalcin in early postmenopausal women. Gynecol Endocrinol 22:455–459CrossRef Yasui T, Miyatani Y, Tomita J, Yamada M, Uemura H, Miura M, Irahara M (2006) Effect of vitamin K2 treatment on carboxylation of osteocalcin in early postmenopausal women. Gynecol Endocrinol 22:455–459CrossRef
54.
go back to reference Lee NK, Sowa H, Hinoi E, Ferron M, Ahn JD, Confavreux C, Dacquin R, Mee PJ, McKee MC, Jung DY, Zhang Z, Kim JK, Mauvais-Jarvis F, Ducy P, Karsenty G (2007) Endocrine regulation of energy metabolism by the skeleton. Cell 130:456–469CrossRef Lee NK, Sowa H, Hinoi E, Ferron M, Ahn JD, Confavreux C, Dacquin R, Mee PJ, McKee MC, Jung DY, Zhang Z, Kim JK, Mauvais-Jarvis F, Ducy P, Karsenty G (2007) Endocrine regulation of energy metabolism by the skeleton. Cell 130:456–469CrossRef
55.
go back to reference Ferron M, Wei J, Yoshizawa T, Fattore AD, DePinho RA, Teti A, Ducy P, Karsenty G (2010) Insulin signaling in osteoblasts integrates bone remodeling and energy metabolism. Cell 142:296–308CrossRef Ferron M, Wei J, Yoshizawa T, Fattore AD, DePinho RA, Teti A, Ducy P, Karsenty G (2010) Insulin signaling in osteoblasts integrates bone remodeling and energy metabolism. Cell 142:296–308CrossRef
Metadata
Title
Serum level of under-carboxylated osteocalcin and bone mineral density in early menopausal Norwegian women
Authors
Nina Emaus
Nguyen D. Nguyen
Bjørg Almaas
Gro K. Berntsen
Jacqueline R. Center
Monika Christensen
Clara G. Gjesdal
Anne S. Grimsgaard
Tuan V. Nguyen
Laila Salomonsen
John A. Eisman
Vinjar M. Fønnebø
Publication date
01-02-2013
Publisher
Springer-Verlag
Published in
European Journal of Nutrition / Issue 1/2013
Print ISSN: 1436-6207
Electronic ISSN: 1436-6215
DOI
https://doi.org/10.1007/s00394-011-0285-1

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