Atherosclerosis · 2009
The association of uncarboxylated matrix Gla protein with mitral annular calcification differs by diabetes status: The Heart and Soul study.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАПоддержка правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Parker Benjamin D, Schurgers Leon J, Vermeer Cees, Schiller Nelson B, Whooley Mary A, Ix Joachim H
Аннотация
OBJECTIVE: Mitral annular calcification (MAC) and aortic stenosis (AS) are associated with systemic calcification and cardiovascular disease (CVD) events. Matrix Gla protein (MGP) is an inhibitor of vascular calcification and lower levels of its precursor - uncarboxylated MGP (ucMGP) - are associated with vascular calcification in pilot studies.
METHODS AND RESULTS: In this cross-sectional study of 839 outpatients with stable CVD, we measured serum ucMGP, and evaluated MAC and AS by echocardiography. The association of ucMGP with MAC differed by diabetes status (interaction P<0.001). Among participants without diabetes (n=615), higher ucMGP (per standard deviation [1178nM] increase) was associated with lower odds of MAC (odds ratio [OR] 0.73; 95% confidence interval [CI] 0.55-0.97) in models adjusted for traditional CVD risk factors, C-reactive protein, and kidney function. Among persons with diabetes (n=221), higher ucMGP was associated with higher odds of MAC (OR 1.89; 95% CI 1.29-2.78). Results were qualitatively similar for the association of ucMGP with AS although not statistically significant.
CONCLUSIONS: Among outpatients with stable CVD, higher ucMGP is associated with lower odds of MAC in persons without diabetes, and higher odds of MAC in persons with diabetes. Future studies should determine whether ucMGP levels are associated with CVD events, and whether such associations differ by diabetes status.
METHODS AND RESULTS: In this cross-sectional study of 839 outpatients with stable CVD, we measured serum ucMGP, and evaluated MAC and AS by echocardiography. The association of ucMGP with MAC differed by diabetes status (interaction P<0.001). Among participants without diabetes (n=615), higher ucMGP (per standard deviation [1178nM] increase) was associated with lower odds of MAC (odds ratio [OR] 0.73; 95% confidence interval [CI] 0.55-0.97) in models adjusted for traditional CVD risk factors, C-reactive protein, and kidney function. Among persons with diabetes (n=221), higher ucMGP was associated with higher odds of MAC (OR 1.89; 95% CI 1.29-2.78). Results were qualitatively similar for the association of ucMGP with AS although not statistically significant.
CONCLUSIONS: Among outpatients with stable CVD, higher ucMGP is associated with lower odds of MAC in persons without diabetes, and higher odds of MAC in persons with diabetes. Future studies should determine whether ucMGP levels are associated with CVD events, and whether such associations differ by diabetes status.