Abstract Title:

Dose vitamin D supplementations improve peripheral diabetic neuropathy? A before-after clinical trial.

Abstract Source:

Diabetes Metab Syndr. 2019 Jan - Feb;13(1):890-893. Epub 2018 Dec 20. PMID: 30641826

Abstract Author(s):

Akram Ghadiri-Anari, Zohre Mozafari, Somaye Gholami, Seyed-Ali Khodaei, Marzieh Aboutorabi-Zarchi, Fariba Sepehri, Azade Nadjarzade, Masoud Rahmanian, Nasim Namiranian

Article Affiliation:

Akram Ghadiri-Anari


OBJECTIVE: Peripheral neuropathy is a common complication of diabetes mellitus. This study was set to assess the effect of vitamin D supplementation on peripheral neuropathy in patients with type 2 diabetes (T2DM).

MATERIALS AND METHODS: This study was a quasi-experimental trial in Yazd diabetic research center. Sixty T2DM subjects (30-65 years old) with painful diabetic neuropathy enrolled in this study from March 2017 till April 2018. Patients received weekly 50000 IU of vitamin D3 for 12 weeks orally. Evaluation of diabetic neuropathy was performed by using Michigan Neuropathy Screening Instrument (MNSI) before and after trial. Also fasting plasma glucose, HbA1c, calcium and vitamin D checked before and after the trial. SPSS version 20 software was used for statistical analysis. P ≤ 0.05 was considered to be statistically significant.

RESULTS: Among 60 T2DM patients, 58 completed the study. Most of them (53.4%) were male. At the end of study, HbA1c, vitamin D, MNSI (both questionnaire and physical examination) improved that is statistically significant (p-value:<0.001).

CONCLUSION: Oral supplementation of vitamin D 3 (50,000 IU) once weekly for 12 weeks was associated with improvement in the serum level of vitamin D and significant decrease in the symptoms and sign of diabetic neuropathy. So serum vitamin D level should be checked in persons with diabetic neuropathy and low levels of it should be corrected in order to reducing neuropathy severity.

Study Type : Human Study

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