Blood vitamins status in patients with stages 2-5 chronic kidney disease

  • I. Dudar SI «Institute of Nephrology NAMS of Ukraine»
  • Y. Gonchar SI «Institute of Nephrology NAMS of Ukraine»
  • V. Savchuk SI “Institute of Nephrology NAMS of Ukraine”
  • O. Loboda SI «Institute of Nephrology NAMS of Ukraine»
Keywords: chronic kidney disease, vitamins A, Е, ff, K, B12, folic acid.


Patients with chronic kidney disease (CKD) are prone to development hypovitaminosis due to dietary constraints, diseases of the gastrointestinal tract, comorbid conditions, etc. Determination of vitamins level in patients with CKD will allow timely correction of their deficiency, prevent the development of hypervitaminosis and reduce oxidative stress. The purpose of the study was to examine the level of vitamins depending on the stage of CKD.

Methods. Vitamin D levels (level 25-hydroxyvitamin D), A, E, B12, K, folic acid were determined in 44patients with CKD stages II-V(mean age 54,63 ± 2,63 years, 24 men 55%). According to the study, patients should not have received any drugs or biologically active additives containing vitamins for 3 months.

Results. There was no significant difference in the level of studied vitamins in CKD st. II-III. There was a significant decrease in the levels of vitamin K, folic acid, and vitamin D levels with the progression of CKD. Vitamin A levels in CKD st. IV, V compared to CKD st. II were significantly higher. Considering large number drugs containing vitamins and trace elements and wide uncontrolled use in the population, in particular in patients with CKD, it is important to continue to study the levels of vitamins and trace elements in patients at different stages of the CKD, depending on the CKD nosology. Study of efficiency and safety applying vitamins in patients with CKD, particularly in the late stages of CKD, are appropriate.

Conclusions. For patients with CKD characteristic of vitamins deficiency (in our study vitamin K, folic acid), but also an increase in their levels (vitamins A and E). Progression of CKD is accompanied by a change in the levels of vitamins. A significant decrease in the level of vitamin K, folic acid, vitamin D was notedfor patients with GFR <30 ml/min/1.73 m2.


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How to Cite
Dudar, I., Gonchar, Y., Savchuk, V., & Loboda, O. (2018). Blood vitamins status in patients with stages 2-5 chronic kidney disease. Ukrainian Journal of Nephrology and Dialysis, (2(58), 29-33.

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