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Clinical Trial Summary

The aim of this study is to determine the effects of vitamin D or placebo for 3 months on the gene expression of glyoxalase enzyme, RAGE, and YKL40 in the peripheral blood mononuclear cell (PBMC) and serum levels of YKL40,AGEs, TNF-α, PAI-1, IL-6, and HbA1c of diabetes type 2 patients.

Clinical Trial Description

The aim of this study is to determine the effects of vitamin D or placebo for 3 months on the gene expression of plasma human cartilage glycoprotein 39(YKL40), receptor for advanced glycation end products (RAGE) and glyoxalase enzyme in the peripheral blood mononuclear cell (PBMC) and serum levels of YKL40 ,plasminogen activator inhibitor-1 (PAI-1), TNF-α, advanced glycation end products (AGEs ), IL-6, and HbA1c of diabetes type 2 patients. In this randomized, double-blind clinical trial, placebo-controlled study, 84 women and men with type 2 diabetes are enrolled from the Iranian Center of diabetes. At the start of study, all participants will sign informed consent and complete a general information form. 24-hour food record for 3 days will be taken from the patients at the beginning and the end of the study. Selected samples by using stratified randomization method based on sex, gender and body mass index (BMI) are classified into 2 groups: 1) receiving vitamin D supplement 2) receiving vitamin D placebo bo. The vitamin D supplement group will receive 4000 IU (100 microgram) daily for 3 months. The vitamin D placebo group will also receive placebo containing starch both similar in terms of color, shape and size. participants are advised to maintain their diet, level of physical activity and medication dose during the study. Blood samples will be collected after anthropometric parameter measuring then target biochemical parameters, gene expression and serum levels and physical activity will be measured before and after the trial. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03008057
Study type Interventional
Source Tehran University of Medical Sciences
Status Enrolling by invitation
Phase Phase 2/Phase 3
Start date January 2017
Completion date July 2021

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