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Bone. 2011 Mar 1;48(3):622-6. doi: 10.1016/j.bone.2010.11.005. Epub 2010 Nov 13.

Markers of bone metabolism in premature myocardial infarction (≤ 40 years of age).

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Department of Cardiology, Vienna General Hospital/Medical University of Vienna, Austria.



Acute myocardial infarction (AMI) at young age is a rare disease with a poor prognosis. Bone metabolism parameters such as 1,25 (OH)₂ vitamin D₃, 25 (OH) vitamin D₃ and osteocalcin have been recently implicated in the development of coronary heart disease (CHD). We evaluated the role of these serum markers in a study population of very young AMI survivors (≤ 40 years).


We prospectively enrolled 302 subjects into our multi-center case control study, including 102 young myocardial infarction patients (≤ 40 years) and 200 control subjects who were frequency-matched on gender and age in an approximate 2:1 ratio per case patient. In the adjusted logistic regression analysis, we used baseline laboratory measurements for the first analysis (acute phase analysis) and measurements from one-year follow-up visits (stable phase analysis). In both, elevated levels of 25 (OH) vitamin D₃ (acute phase: OR per IQR 2.02, 95% CI 1.13-3.58, p = 0.017; stable phase: OR 4.07, 95% CI 1.8-9.21, p = 0.001) and 1,25 (OH)₂ vitamin D₃ (acute phase: OR 2.82, 95% CI 1.7-4.7, p < 0.001; stable phase: OR 4.57, 95% CI 2.31-9.05, p < 0.001) were associated with premature AMI. Conversely, osteocalcin was inversely associated with premature myocardial infarction (acute phase: OR 0.53, 95% CI 0.28-1.03, p = 0.059; stable phase: OR 0.26, 95% CI 0.12-0.6, p < 0.001). The observed associations were independent of the acute phase of myocardial infarction.


In our study, elevated levels of 25 (OH) vitamin D₃ and 1,25 (OH)₂ vitamin D₃, as well as decreased levels of osteocalcin were associated with myocardial infarction in very young patients. The precise mechanism and implications of these findings will have to be elucidated in future studies.

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