Molecular Biology Reports

, Volume 45, Issue 6, pp 1973–1980 | Cite as

Increased expression of microRNAs, miR-20a and miR-326 in PBMCs of patients with type 1 diabetes

  • Zahra Azhir
  • Fariba Dehghanian
  • Zohreh HojatiEmail author
Original Article


Type 1 diabetes (T1D) is an autoimmune disorder which is characterized by autoimmune attack on β cells of pancreas and lack of insulin. The involvement of microRNAs (miRNAs) in the development of immune system and their differential expression in various autoimmune diseases including T1D have been well established. In this study, the association between expression levels of miR-20a, miR-326 and T1D were evaluated. The expression levels of miR-20a and miR-326 were measured in the PBMCs of 21 T1D patients and 16 healthy controls using qPCR method. In silico analysis was also performed on targetome of miR-20a and miR-326. Both miR-20a (p value: 0.015) and miR-326 (p value: 0.005) were upregulated in the PBMCs of T1D patients compared to healthy controls. Furthermore, different dysregulated miR326–mRNA and miR20a–mRNA interactions were also suggested using integrative computational analysis. The expression level of miR-20a and miR-326 indicates significant association with T1D which suggests the possible regulatory effects of these non-coding RNAs in T1D.


MicroRNA Type 1 diabetes miR-20a miR-326 



This study was performed at the biology department of University of Isfahan and was funded by the graduate office of the University of Isfahan.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

This study is approved by the University of Isfahan review board (Agreement Number: 94/34330) and also the ethics committee of Shariati Hospital, Isfahan, Iran (Agreement Number: 154/92/23273). A written consent form was obtained from each patient according to the Declaration of Helsinki. A written informed consent was also obtained from healthy control subjects who were above the 16 years old. In addition, the blood samples of patients and healthy controls with age less than 16 years, were collected with full written informed parent’s consent and in compliance with the ethical protocol and standards of Shariati Hospital.

Supplementary material

11033_2018_4352_MOESM1_ESM.docx (122 kb)
Supplementary material 1 (DOCX 122 KB)


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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Division of Genetics, Department of Biology, Faculty of SciencesUniversity of IsfahanIsfahanIran

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