This article, reports that patients with high uncarboxylated, dephosphorylated Matrix Gla Protein, a marker of vitamin K2 deficiency is correlated with increased mortality in patients who have an abdominal aortic aneurysm (AAA). This means that vitamin K2 may have a role for people at risk of having an AAA.
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Kristensen, Joachim, Lars Melholt, Katrine Kristensen, Marie Dahl, Jes Lindholt. “Vitamin K2 Dependent Matrix Gla Protein Relating to Abdominal Aortic Aneurysm and Overall Mortality: A Combined Case Control and Cohort Study." European Journal of Vascular and Endovascular Surgery in press, (2021). doi: https://doi.org/10.1016/j.ejvs.2021.03.016