Korean J Obstet Gynecol.  2005 Apr;48(4):978-986.

The quantitative analysis the number of mitochondrial DNA copy using real-time PCR and mitochondrial tRNA mutation analysis at position 3243 in Korean gestational diabetes mellitus

• Chang SW
• Lee SH
• Jun HS
• Kwack KB
• Cho SW
• Jeong HJ
• Ahn SY
• Kim YL
• Kim SH
• Park LS
• Cho JH
• Yoon TK

Abstract

OBJECTIVE
Mitochondrial gene mutations may play a role in the development of gestational diabetes mellitus. This study has assisted to confirm the relationship between the mitochondrial DNA copy number and the GDM.
METHODS
Peripheral blood samples were collected from 68 patients with GDM and from 79 controls. For the quantification of mtDNA content, a comparative analysis was performed by the amplification of endogenous control (nuclear DNA, 28S rRNA). The mitochondrial A3243G mutation analysis performed.
RESULTS
The ratio of mtDNA/28S rRNA was 1.2053 +/- 0.8307 in GDM patients and 1.7975 +/- 1.1355 in control group (p=0.0004), respectively. Among 68 GDM patients, the mutation in tRNA nt 3243 was detected in only one subject. The A3243G mutation in tRNA- Leu gene, implicated in GDM was reported in 1 of 68 (1.47%) but not in controls.
CONCLUSION
In this investigation, blood samples from GDM patients using the real-time polymerase chain reaction will be applied to confirm the relationship between the mitochondrial DNA copy number and the GDM. It is hypothesized that this method will help to predict GDM, and aid in developing early diagnostic methods and treatment modalities.

Keyword

Gestational diabetes mellitus; Mitochondrial DNA; Real-time polymerase chain reaction; Mitochondrial A3243G mutation

MeSH Terms

Diabetes, Gestational*
DNA
DNA, Mitochondrial*
Female
Genes, Mitochondrial
Humans
Pregnancy
Real-Time Polymerase Chain Reaction*
RNA, Transfer*
DNA
DNA, Mitochondrial
RNA, Transfer