Risk Factors for Vascular Calcifications in Hemodialysis Patients: to What Extent is Vitamin K2 Deficiency Involved?

Summary

Vitamin K2 deficiency has been shown to be profound in hemodialysis patients. It is reflected by high plasma levels of dephosphorylated-undercarboxylated Matrix Gla protein (dp-ucMGP) and seems to be correlated with vascular calcifications. Vascular calcifications can be assessed using the AC24 score on a lateral abdominal X-ray. The aim of this study is to assess first the rate of decrease of dp-ucMGP in a hemodialysis cohort after supplementation with vitamin K2 and the correlation between this rate of decrease and the Aortic Calcification Severity (AC24) score. The factors associated with high levels of dp-ucMGP will be analyzed as well.

Timeline

Start

2016-08

Primary completion

2016-09

Completion

2016-09

Publications

• Aoun M, Makki M, Azar H, Matta H, Chelala DN. High Dephosphorylated-Uncarboxylated MGP in Hemodialysis patients: risk factors and response to vitamin K2, A pre-post intervention clinical trial. BMC Nephrol. 2017 Jun 7;18(1):191. doi: 10.1186/s12882-017-0609-3.

Drugs

Indications