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. 2016 Jul-Sep;12(3):303-308.
doi: 10.4183/aeb.2016.303.

SERUM 25-HYDROXYVITAMIN D(3) LEVELS IN TYPE 2 DIABETIC PATIENTS WITH NORMO-, MICRO-, AND MACROALBUMINURIA

F Sari  1 , S Ozdem  2 , R Sari  3
Affiliations

SERUM 25-HYDROXYVITAMIN D(3) LEVELS IN TYPE 2 DIABETIC PATIENTS WITH NORMO-, MICRO-, AND MACROALBUMINURIA

F Sari et al. Acta Endocrinol (Buchar). 2016 Jul-Sep.

Abstract

Background: The aim of this study was to observe the differences in serum 25-hydroxyvitamin D(3) levels in nondiabetic healthy control subject and type 2 diabetic patients, and to investigate the differences in serum 25-hydroxyvitamin D(3) levels in type 2 diabetic patients with normo-, micro- and macroalbuminuria.

Patients and methods: Total 140 nondiabetic healthy controls and 384 type 2 diabetic patients (156 normoalbuminuric, 152 microalbuminuric and 76 macroalbuminuric) were included in the study. 25-hydroxyvitamin D(3) levels were measured in sera with the method of electrochemiluminescence using modular immunoassay analyzer.

Results: Vitamin D deficiency was detected in 70.85% and 22.9% of type 2 diabetic patients and nondiabetic healthy controls, respectively. Serum 25-hydroxyvitamin D(3) levels were significantly lower in type 2 diabetic patients compared to nondiabetic healthy controls (16.4 ± 9.5 ng/mL vs. 28.2 ± 11.6 ng/mL, p=0.0001). Serum 25-hydroxyvitamin D(3) levels were lower in albuminuric and nonalbuminuric diabetic patients (14.3 ± 7.9 ng/mL vs. 19.6±10.9 ng/mL, respectively, p=0.013). Serum 25-hydroxyvitamin D(3) levels were 19.6 ± 10.9 ng/mL in normoalbuminuric, 14.9 ± 8.8 ng/mL in microalbuminuric and 12.9 ± 5.8 ng/mL in macroalbuminuric diabetic patients. While lower serum 25-hydroxyvitamin D(3) levels were detected both in microalbuminuric (p=0.028) and macroalbuminuric diabetic patients (p=0.014) compared to normoalbuminuric diabetic patients, 25-hydroxyvitamin D(3) levels did not change significantly between microalbuminuric and macroalbuminuric diabetic patients (p=0.67). Serum 25-hydroxyvitamin D(3) levels correlated negatively with urinary albumin excretion (r=-0.24, p=0.016) in patients with diabetes mellitus.

Conclusion: Findings of the present study demonstrated reduced serum 25-hydroxyvitamin D(3) levels which were significantly related with albuminuria in type 2 diabetic patients.

Keywords: Vitamin D; albuminuria; diabetes mellitus.

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Conflict of interest statement

There was no any disclosing and financial or personal relationship with other people or organisations that could inappropriately influence our work.

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