ROLE OF VITAMIN D ON HbA1c LEVEL, AS AN ADJUVANT TO ORAL HYPOGLYCAEMIC DRUGS IN TYPE 2 DIABETIC PATIENTS

Background: Type 2 diabetes mellitus (T2DM) is considered as one of the nonskeletal diseases related with deficiency of vitamin D. Both T2DM and vitamin D deficiency have similar risk factors, such as obesity, aging, and sedentary lifestyle. Cardiovascular diseases (CVDs) and metabolic syndrome disorders are also associated with vitamin D deficiency. Vitamin D plays an important functional role in glucose homeostasis through its effects on insulin secretion and sensitivity. It may reduce insulin resistance (IR) indirectly through its effect on calcium and phosphate metabolism and through upregulation of the insulin receptor gene. Thus, this study was designed to evaluate role of vitamin D as an adjuvant to oral hypoglycemic drugs in treatment of Type 2 diabetic patients. Aims and Objectives : Vitamin D deficiency appears to be related to the development of diabetes mellitus type 2 and the metabolic syndrome. Vitamin D may affect glucose homeostasis, vitamin D levels having been found to be inversely related to glycosylated hemoglobin levels in diabetes mellitus. The aim of the study was to evaluate role of vitamin D as an adjuvant to oral hypoglycemic drugs in treatment of Type 2 diabetic patients. Materials and Methods: The study was done on 60 patients diagnosed with T2DM. A total of 60 patients, control group were type 2 Diabetic patients on oral hypoglycemic drugs without vitamin D supplementation (n=30) and study group was type 2 Diabetic patients on oral hypoglycemic drugs with vitamin D supplementation (n=30). Results: The mean aged of patients was 43.27±8.80 in control group and 47.93±8.39 in study group. The family history of diabetes mellitus was 39 patients. HbA1C, FBG, Postprandial were decreased in study group as compared to control group from baseline (0 day) to 90 days, respectively. Other parameters like hemoglobin, Serum Creatinine serum glutamic oxaloacetic transaminase and serum glutamic pyruvic transaminase were slight changes in study group as compared to control group from baseline (0 day) to 90 days, respectively. Conclusion: The present study demonstrated that vitamin D as an adjuvant to oral hypoglycemic drugs in treatment in diabetic patients, vitamin D levels being related to glycemic control in diabetes mellitus type 2. These findings may have therapeutic implications as cautious vitamin D supplementation may improve glycemic control in diabetes mellitus type 2.

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Vitamin D3 supplementation improves glycemic control in type 2 diabetic patients: Results from an Italian clinical trial

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000673 ◽

2020 ◽

pp. 1-10

Author(s):

Giuseppe Derosa ◽

Angela D’Angelo ◽

Chiara Martinotti ◽

Maria Chiara Valentino ◽

Sergio Di Matteo ◽

...

Keyword(s):

Vitamin D ◽

Vitamin D Deficiency ◽

Metabolic Control ◽

Vitamin D3 ◽

Therapy Group ◽

Hypoglycemic Agents ◽

Diabetic Patients ◽

Type 2 Diabetic Patients ◽

Type 2 Diabetic

Abstract. Background: to evaluate the effects of Vitamin D3 on glyco-metabolic control in type 2 diabetic patients with Vitamin D deficiency. Methods: one hundred and seventeen patients were randomized to placebo and 122 patients to Vitamin D3. We evaluated anthropometric parameters, glyco-metabolic control, and parathormone (PTH) value at baseline, after 3, and 6 months. Results: a significant reduction of fasting, and post-prandial glucose was recorded in Vitamin D3 group after 6 months. A significant HbA1c decrease was observed in Vitamin D3 (from 7.6% or 60 mmol/mol to 7.1% or 54 mmol) at 6 months compared to baseline, and to placebo (p < 0.05 for both). At the end of the study period, we noticed a change in the amount in doses of oral or subcutaneous hypoglycemic agents and insulin, respectively. The use of metformin, acarbose, and pioglitazone was significantly lower (p = 0.037, p = 0.048, and p = 0.042, respectively) than at the beginning of the study in the Vitamin D3 therapy group. The units of Lispro, Aspart, and Glargine insulin were lower in the Vitamin D3 group at the end of the study (p = 0.031, p = 0.037, and p = 0.035, respectively) than in the placebo group. Conclusions: in type 2 diabetic patients with Vitamin D deficiency, the restoration of value in the Vitamin D standard has led not only to an improvement in the glyco-metabolic compensation, but also to a reduced posology of some oral hypoglycemic agents and some types of insulin used.

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