Circulating uncarboxylated matrix Gla protein in patients with atrial fibrillation or heart failure with preserved ejection fraction
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Published on: June 14, 2016
Neshe Ferahova Nazifova-Tasinova1, Atanas Angelov Atanasov2, Milena Gincheva Pasheva1
1Department of Biochemistry, Molecular Medicine and Nutrigenomics, Medical university of Varna, Varna, Bulgaria.
Insights
Circulating uncarboxylated matrix Gla protein (ucMGP) may indicate stages of cardiovascular disease (CVD) and coronary arterial calcification (CAC). Further research is needed to confirm ucMGP as a potential biomarker for these conditions.
Area of Science:
- Cardiovascular Medicine
- Biomarker Discovery
- Medical Diagnostics
Background:
- Circulating uncarboxylated matrix Gla protein (ucMGP) is a potential indicator linked to coronary arterial calcification (CAC) in cardiovascular disease (CVD).
- Understanding the relationship between ucMGP, CVD pathology, and CAC is crucial for patient management.
Purpose of the Study:
- To investigate the associations between circulating ucMGP levels and CVD pathology.
- To evaluate the relationship between ucMGP and CAC.
- To explore the interplay between ucMGP, CVD risk factors, and vitamin K status.
Main Methods:
- Measurement of ucMGP in 99 CVD patients.
- Determination of CAC score using multislice computed tomography.
- Assay of ucMGP, ucOC, and cOC using ELISA kits.
- Evaluation of vitamin K status via the ucOC/cOC ratio.
Main Results:
- A trend towards decreased ucMGP was observed in patients with higher CAC scores (≥100 AU) compared to those with lower scores (1-99 AU), after excluding patients on vitamin K antagonists.
- Significant inverse correlations were found between ucMGP and vitamin K status across the entire cohort and by CAC score.
- Associations were identified between ucMGP and established CVD risk factors.
Conclusions:
- Circulating ucMGP may serve as a reflection of specific stages of CVD and CAC.
- Further studies are warranted to elucidate the precise role of ucMGP as a potential diagnostic biomarker.
Context:
Circulating uncarboxylated matrix Gla protein (ucMGP) is possibly related to coronary arterial calcification (CAC) in cardiovascular disease (CVD) patients.
Objective:
We aimed to evaluate the relationships between circulating ucMGP, CVD pathology and CAC and its interplay with CVD risk factors.
Materials And Methods:
ucMGP was measured in 99 CVD-patients. CAC score was determined by multislice computed tomography. Circulating ucMGP, uncarboxylated (ucOC) and carboxylated osteocalcin (cOC) were assayed by ELISA kits. Vitamin-K status was evaluated by ucOC/cOC ratio.
Results:
A tendency for decreased ucMGP was observed for CAC ≥ 100 AU vs. CAC = 1-99 AU after exclusion of the patients on vitamin K-antagonist anticoagulants. Significant inverse correlations between ucMGP and vitamin-K status were indicated for the entire cohort and according to CAC score. Significant associations were found between ucMGP and risk factors for CVD.
Conclusion:
Circulating ucMGP may reflect certain stages of CVD and CAC. Future studies are needed to clarify its role as potential biomarker.
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