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Published on: November 30, 2013
Upregulation of microRNA processing enzymes Drosha and Dicer in gestational diabetes mellitus
Giti Rahimi1, Naser Jafari, Mehnoush Khodabakhsh
1Department of Obstetrics and Gynecology .
Abstract:
MicroRNAs (miRNAs) have been shown to play important roles in diverse cellular processes and linked to variety of disorders. Dicer and Drosha are two major enzymes in the miRNA biogenesis process. DGCR8 is the assistant of Drosha in the microprocessor complex. In this study, we evaluated the mRNA expression profiles of major miRNA processing machinery Drosha, Dicer, and DGCR8 in gestational diabetes mellitus (GDM), pregnant and healthy women. Our findings indicate that the expression levels of Drosha, Dicer and DGCR8 were upregulated in both pregnant and GDM patients compared to the control group. However, Drosha and Dicer were upregulated more than pregnant group. In conclusion, we detected dysregulation of Drosha, Dicer and DGCR8 expression in pregnant and GDM patients when compared to healthy control participants. Therefore, we favor the hypothesis that miRNAs are involved in the development of GDM.
Insights
This study found that key microRNA (miRNA) processing enzymes, Drosha, Dicer, and DGCR8, are upregulated in pregnant women and those with gestational diabetes mellitus (GDM), suggesting miRNAs play a role in GDM development.
Area of Science:
- Molecular Biology
- Genetics
- Reproductive Health
Background:
- MicroRNAs (miRNAs) are crucial regulators of cellular processes and implicated in various diseases.
- The biogenesis of miRNAs involves key enzymes like Drosha and Dicer, with DGCR8 assisting Drosha in the microprocessor complex.
Purpose of the Study:
- To investigate the mRNA expression profiles of Drosha, Dicer, and DGCR8 in gestational diabetes mellitus (GDM).
- To compare these expression levels in GDM patients, pregnant women, and healthy controls.
Main Methods:
- Analysis of mRNA expression levels of Drosha, Dicer, and DGCR8.
- Comparison between three groups: healthy controls, pregnant women, and GDM patients.
Main Results:
- Expression levels of Drosha, Dicer, and DGCR8 were elevated in both pregnant and GDM groups compared to controls.
- Drosha and Dicer showed higher upregulation in the GDM group than in the non-GDM pregnant group.
Conclusions:
- Dysregulation of Drosha, Dicer, and DGCR8 expression is observed in pregnant women and GDM patients.
- These findings support the hypothesis that miRNAs are involved in the pathogenesis of gestational diabetes mellitus.
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