Vitamin D and diabetic nephropathy: A systematic review and meta-analysis

Hoda Derakhshanian, Sakineh Shab-Bidar, John R Speakman, Hoda Nadimi, Kurosh Djafarian

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

OBJECTIVE: There has been a long history documenting the use of different vitamin D derivatives as therapy for renal diseases. However, to our knowledge, there is no comprehensive assessment of the relation between vitamin D deficiency and risk for diabetic nephropathy (DN). Additionally, the effect of vitamin D supplementation on DN is still unclear. The aim of this meta-analysis was to assess these issues by pooling together the results from cross-sectional studies and clinical trials.

METHODS: A systematic literature search of PubMed, Scopus, and Google Scholar was conducted, ending in September 2014. For cross-sectional studies, odds ratio was used as a measure of the association between vitamin D status and risk for DN; for clinical trials, mean and SD of the main outcome (urine albumin-to-creatinine ratio [UACR]) in intervention and placebo groups were considered for analysis.

RESULTS: The final selected articles were published between 2009 and 2014. In all, 3700 and 219 patients were enrolled in observational and interventional studies, respectively. The pooled odds ratio from six cross-sectional studies was 1.80 (95% confidence interval [CI], 1.25-2.59; P = 0.002), indicating a significant inverse association between serum vitamin D status and risk for nephropathy in patients with diabetes. However, the pooled data of UACR levels in clinical trials suggested no significant change following vitamin D supplementation (17.98; 95% CI, -35.35 to 71.32; P = 0.51).

CONCLUSION: This meta-analysis showed the higher risk for nephropathy in vitamin D-deficient patients with diabetes. Pooling the results of available clinical trials after vitamin D supplementation did not support causality in this association.

Original languageEnglish
Pages (from-to)1189-1194
Number of pages6
JournalNutrition
Volume31
Issue number10
Early online date9 May 2015
DOIs
Publication statusPublished - Oct 2015

Fingerprint

Diabetic Nephropathies
Vitamin D
Meta-Analysis
Clinical Trials
Cross-Sectional Studies
Albumins
Creatinine
Odds Ratio
Urine
Confidence Intervals
Vitamin D Deficiency
PubMed
Causality
Observational Studies
History
Placebos
Kidney
Serum

Keywords

  • Clinical Trials as Topic
  • Cross-Sectional Studies
  • Diabetes Mellitus
  • Diabetic Nephropathies
  • Dietary Supplements
  • Humans
  • Middle Aged
  • Vitamin D
  • Vitamin D Deficiency
  • Vitamins
  • Choleacalciferol
  • nephropathy

Cite this

Derakhshanian, H., Shab-Bidar, S., Speakman, J. R., Nadimi, H., & Djafarian, K. (2015). Vitamin D and diabetic nephropathy: A systematic review and meta-analysis. Nutrition, 31(10), 1189-1194. https://doi.org/10.1016/j.nut.2015.04.009

Vitamin D and diabetic nephropathy : A systematic review and meta-analysis. / Derakhshanian, Hoda; Shab-Bidar, Sakineh; Speakman, John R; Nadimi, Hoda; Djafarian, Kurosh.

In: Nutrition, Vol. 31, No. 10, 10.2015, p. 1189-1194.

Research output: Contribution to journalArticle

Derakhshanian, H, Shab-Bidar, S, Speakman, JR, Nadimi, H & Djafarian, K 2015, 'Vitamin D and diabetic nephropathy: A systematic review and meta-analysis', Nutrition, vol. 31, no. 10, pp. 1189-1194. https://doi.org/10.1016/j.nut.2015.04.009
Derakhshanian, Hoda ; Shab-Bidar, Sakineh ; Speakman, John R ; Nadimi, Hoda ; Djafarian, Kurosh. / Vitamin D and diabetic nephropathy : A systematic review and meta-analysis. In: Nutrition. 2015 ; Vol. 31, No. 10. pp. 1189-1194.
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abstract = "OBJECTIVE: There has been a long history documenting the use of different vitamin D derivatives as therapy for renal diseases. However, to our knowledge, there is no comprehensive assessment of the relation between vitamin D deficiency and risk for diabetic nephropathy (DN). Additionally, the effect of vitamin D supplementation on DN is still unclear. The aim of this meta-analysis was to assess these issues by pooling together the results from cross-sectional studies and clinical trials.METHODS: A systematic literature search of PubMed, Scopus, and Google Scholar was conducted, ending in September 2014. For cross-sectional studies, odds ratio was used as a measure of the association between vitamin D status and risk for DN; for clinical trials, mean and SD of the main outcome (urine albumin-to-creatinine ratio [UACR]) in intervention and placebo groups were considered for analysis.RESULTS: The final selected articles were published between 2009 and 2014. In all, 3700 and 219 patients were enrolled in observational and interventional studies, respectively. The pooled odds ratio from six cross-sectional studies was 1.80 (95{\%} confidence interval [CI], 1.25-2.59; P = 0.002), indicating a significant inverse association between serum vitamin D status and risk for nephropathy in patients with diabetes. However, the pooled data of UACR levels in clinical trials suggested no significant change following vitamin D supplementation (17.98; 95{\%} CI, -35.35 to 71.32; P = 0.51).CONCLUSION: This meta-analysis showed the higher risk for nephropathy in vitamin D-deficient patients with diabetes. Pooling the results of available clinical trials after vitamin D supplementation did not support causality in this association.",
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AU - Shab-Bidar, Sakineh

AU - Speakman, John R

AU - Nadimi, Hoda

AU - Djafarian, Kurosh

N1 - Copyright © 2015 Elsevier Inc. All rights reserved.

PY - 2015/10

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N2 - OBJECTIVE: There has been a long history documenting the use of different vitamin D derivatives as therapy for renal diseases. However, to our knowledge, there is no comprehensive assessment of the relation between vitamin D deficiency and risk for diabetic nephropathy (DN). Additionally, the effect of vitamin D supplementation on DN is still unclear. The aim of this meta-analysis was to assess these issues by pooling together the results from cross-sectional studies and clinical trials.METHODS: A systematic literature search of PubMed, Scopus, and Google Scholar was conducted, ending in September 2014. For cross-sectional studies, odds ratio was used as a measure of the association between vitamin D status and risk for DN; for clinical trials, mean and SD of the main outcome (urine albumin-to-creatinine ratio [UACR]) in intervention and placebo groups were considered for analysis.RESULTS: The final selected articles were published between 2009 and 2014. In all, 3700 and 219 patients were enrolled in observational and interventional studies, respectively. The pooled odds ratio from six cross-sectional studies was 1.80 (95% confidence interval [CI], 1.25-2.59; P = 0.002), indicating a significant inverse association between serum vitamin D status and risk for nephropathy in patients with diabetes. However, the pooled data of UACR levels in clinical trials suggested no significant change following vitamin D supplementation (17.98; 95% CI, -35.35 to 71.32; P = 0.51).CONCLUSION: This meta-analysis showed the higher risk for nephropathy in vitamin D-deficient patients with diabetes. Pooling the results of available clinical trials after vitamin D supplementation did not support causality in this association.

AB - OBJECTIVE: There has been a long history documenting the use of different vitamin D derivatives as therapy for renal diseases. However, to our knowledge, there is no comprehensive assessment of the relation between vitamin D deficiency and risk for diabetic nephropathy (DN). Additionally, the effect of vitamin D supplementation on DN is still unclear. The aim of this meta-analysis was to assess these issues by pooling together the results from cross-sectional studies and clinical trials.METHODS: A systematic literature search of PubMed, Scopus, and Google Scholar was conducted, ending in September 2014. For cross-sectional studies, odds ratio was used as a measure of the association between vitamin D status and risk for DN; for clinical trials, mean and SD of the main outcome (urine albumin-to-creatinine ratio [UACR]) in intervention and placebo groups were considered for analysis.RESULTS: The final selected articles were published between 2009 and 2014. In all, 3700 and 219 patients were enrolled in observational and interventional studies, respectively. The pooled odds ratio from six cross-sectional studies was 1.80 (95% confidence interval [CI], 1.25-2.59; P = 0.002), indicating a significant inverse association between serum vitamin D status and risk for nephropathy in patients with diabetes. However, the pooled data of UACR levels in clinical trials suggested no significant change following vitamin D supplementation (17.98; 95% CI, -35.35 to 71.32; P = 0.51).CONCLUSION: This meta-analysis showed the higher risk for nephropathy in vitamin D-deficient patients with diabetes. Pooling the results of available clinical trials after vitamin D supplementation did not support causality in this association.

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KW - Vitamins

KW - Choleacalciferol

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JO - Nutrition

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SN - 0899-9007

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ER -