The effects of vitamin D supplementation on lipid profiles and oxidative indices among diabetic nephropathy patients with marginal vitamin D status

Diabetes Metab Syndr. Jan-Feb 2019;13(1):542-547. doi: 10.1016/j.dsx.2018.11.008. Epub 2018 Nov 3.

Abstract

Aims: Diabetic nephropathy is one of the major microvascular complications of type 2 diabetes which insufficient vitamin D might -have a role in it's incidence. This study evaluated the effects of vitamin D supplementation on lipid profiles and oxidative/anti-oxidative indices in marginal vitamin D status patients with diabetic nephropathy.

Methods: For the current paralleled, randomized, double-blinded, placebo-controlled clinical trial, 50 diabetic nephropathy patients with marginal serum vitamin D were selected. Intervention group received 1,25-dihydroxycholecalciferol (50000 IU/week, n = 25), and placebo group (n = 25) received an identical placebo, for 8 weeks. Lipid profiles (LDL, HDL, TG and TC) and oxidative/anti-oxidative markers (TAC, SOD, CAT, GPX and MDA) were measured.

Results: Vitamin D supplementation significantly increased vitamin D status in the intervention group, compared to the control group (P = 0.001). The reductions in the serum levels of TG, LDL and TC were significant (P = 0.04, P = 0.006 and P = 0.02, respectively) in the intervention group. The changes in oxidative/anti-oxidative markers and HDL levels were not significant after intervention.

Conclusion: In conclusion, vitamin D supplementation for 8 weeks among diabetic nephropathy patients has beneficial effects on serum vitamin D status and dyslipidemia.

Keywords: Diabetes; Nephropathy; Vitamin D.

Publication types

  • Randomized Controlled Trial

MeSH terms

  • Adult
  • Biomarkers / blood
  • Blood Glucose / drug effects
  • Blood Glucose / metabolism
  • Cholesterol / blood
  • Diabetic Nephropathies / blood
  • Diabetic Nephropathies / diagnosis
  • Diabetic Nephropathies / drug therapy*
  • Dietary Supplements*
  • Double-Blind Method
  • Dyslipidemias / blood
  • Dyslipidemias / diagnosis
  • Dyslipidemias / drug therapy*
  • Female
  • Humans
  • Lipids / blood
  • Male
  • Middle Aged
  • Oxidative Stress / drug effects*
  • Oxidative Stress / physiology
  • Treatment Outcome
  • Triglycerides / blood
  • Vitamin D / administration & dosage*
  • Vitamin D / blood
  • Vitamin D Deficiency / blood
  • Vitamin D Deficiency / drug therapy*

Substances

  • Biomarkers
  • Blood Glucose
  • Lipids
  • Triglycerides
  • Vitamin D
  • Cholesterol