TY - JOUR
T1 - Active vitamin D (1,25-dihydroxyvitamin D) and bone health in middle-aged and elderly men: The European Male Aging Study (EMAS)
AU - Vanderschueren, Dirk
AU - Pye, Stephen R.
AU - O'Neill, Terence W.
AU - Lee, David M.
AU - Jans, Ivo
AU - Billen, Jaak
AU - Gielen, Evelien
AU - Laurent, Michaël
AU - Claessens, Frank
AU - Adams, Judith E.
AU - Ward, Kate A.
AU - Bartfai, Gyorgy
AU - Casanueva, Felipe F.
AU - Finn, Joseph D.
AU - Forti, Gianni
AU - Giwercman, Aleksander
AU - Han, Thang S.
AU - Huhtaniemi, Ilpo T.
AU - Kula, Krzysztof
AU - Lean, Michael E J
AU - Pendleton, Neil
AU - Punab, Margus
AU - Wu, Frederick C W
AU - Boonen, Steven
N1 - U105960371, Medical Research Council, United Kingdom, Arthritis Research UK, United Kingdom
PY - 2013/3
Y1 - 2013/3
N2 - Context: There is little information on the potential impact of serum 1,25-dihydroxyvitamin D [1,25(OH)2D] on bone health including turnover. Objective: The objective of the study was to determine the influence of 1,25(OH)2D and 25-hydroxyvitamin D [25(OH)D] on bone health in middle-aged and older European men. Design, Setting, and Participants: Men aged 40-79 years were recruited from population registers in 8 European centers. Subjects completed questionnaires that included questions concerning lifestyle and were invited to attend for quantitative ultrasound (QUS) of the heel, assessment of height and weight, and a fasting blood sample from which 1,25(OH)2D, 25(OH)D, and PTH were measured. 1,25(OH)2D was measured using liquid chromatography tandem mass spectrometry. Bone markers serum N-terminal propeptide of type 1 procollagen (P1NP) and crosslinks (β-cTX) were also measured. Dual-energy x-ray absorptiometry (DXA) of the hip and lumbar spine was performed in 2 centers. Main Outcome Measure(s):QUSof the heel, bone markers P1NP and β-cTX, and DXA of the hip and lumbar spine were measured. Results: A total of 2783 men, mean age 60.0 years (SD 11.0) were included in the analysis. After adjustment for age and center, 1,25(OH) 2D was positively associated with 25(OH)D but not with PTH. 25(OH)D was negatively associated with PTH. After adjustment for age, center, height, weight, lifestyle factors, and season, 1,25(OH)2D was associated negatively with QUS and DXA parameters and associated positively with β-cTX. 1,25(OH)2D was not correlated with P1NP. 25(OH)D was positively associated with the QUS and DXA parameters but not related to eitherbone turnover marker. Subjects with both high 1,25(OH)2D (upper tertile) and low 25(OH)D (lower tertile) had the lowest QUS and DXA parameters and the highest β-cTX levels. Conclusions: Serum 1,25(OH)2D is associated with higher bone turnover and poorer bone health despite being positively related to 25(OH)D. A combination of high 1,25(OH)2D and low 25(OH)D is associated with the poorest bone health. Copyright © 2013 by The Endocrine Society.
AB - Context: There is little information on the potential impact of serum 1,25-dihydroxyvitamin D [1,25(OH)2D] on bone health including turnover. Objective: The objective of the study was to determine the influence of 1,25(OH)2D and 25-hydroxyvitamin D [25(OH)D] on bone health in middle-aged and older European men. Design, Setting, and Participants: Men aged 40-79 years were recruited from population registers in 8 European centers. Subjects completed questionnaires that included questions concerning lifestyle and were invited to attend for quantitative ultrasound (QUS) of the heel, assessment of height and weight, and a fasting blood sample from which 1,25(OH)2D, 25(OH)D, and PTH were measured. 1,25(OH)2D was measured using liquid chromatography tandem mass spectrometry. Bone markers serum N-terminal propeptide of type 1 procollagen (P1NP) and crosslinks (β-cTX) were also measured. Dual-energy x-ray absorptiometry (DXA) of the hip and lumbar spine was performed in 2 centers. Main Outcome Measure(s):QUSof the heel, bone markers P1NP and β-cTX, and DXA of the hip and lumbar spine were measured. Results: A total of 2783 men, mean age 60.0 years (SD 11.0) were included in the analysis. After adjustment for age and center, 1,25(OH) 2D was positively associated with 25(OH)D but not with PTH. 25(OH)D was negatively associated with PTH. After adjustment for age, center, height, weight, lifestyle factors, and season, 1,25(OH)2D was associated negatively with QUS and DXA parameters and associated positively with β-cTX. 1,25(OH)2D was not correlated with P1NP. 25(OH)D was positively associated with the QUS and DXA parameters but not related to eitherbone turnover marker. Subjects with both high 1,25(OH)2D (upper tertile) and low 25(OH)D (lower tertile) had the lowest QUS and DXA parameters and the highest β-cTX levels. Conclusions: Serum 1,25(OH)2D is associated with higher bone turnover and poorer bone health despite being positively related to 25(OH)D. A combination of high 1,25(OH)2D and low 25(OH)D is associated with the poorest bone health. Copyright © 2013 by The Endocrine Society.
KW - serum 25-hydroxyvitamin d
KW - parathyroid-hormone
KW - mineral density
KW - fracture risk
KW - older-adults
KW - population
KW - association
KW - calcium
KW - markers
KW - season
U2 - 10.1210/jc.2012-2772
DO - 10.1210/jc.2012-2772
M3 - Article
C2 - 23386642
SN - 1945-7197
VL - 98
SP - 995
EP - 1005
JO - Journal of Clinical Endocrinology and Metabolism
JF - Journal of Clinical Endocrinology and Metabolism
IS - 3
ER -