Study on the relationship between mitochondrial gene mutation and latent autoimmune diabetes mellitus in adults.
OBJECTIVE
To identify the A3243G mutation of mitochondrial (mt) DNA in patients with latent autoimmune diabetes mellitus in adults (LADA) of Han nationality in the northeast area of China.


METHODS
Seventy-nine diabetics of Han nationality, whose families have resided in the northeast area of China for more than 3 generations, were divided into 3 groups: Group 1 (22 cases of type 2 diabetes with maternal inheritance history), Group 2 (34 cases of LADA), Group 3 (23 cases of type 1 diabetes in adolescents). The A3243G of mt DNA was detected in these 79 subjects with the method of PCR-RFLP.


RESULTS
None of the 79 diabetics studied was positively identified for the A3243G mutation of mt DNA.


CONCLUSIONS
The A3243G mutation of mt DNA might not be related to the onset of LADA in diabetic population of Han nationality in northeast area of China and there might not be close relationship between A3243G mutation of mt DNA and autoimmunity.
Cui
Can
C
Department of Geriatrics, the Second Affiliated Hospital, Harbin Medical University, Harbin 150086.
Li
Qiang
Q
Zhang
Yina
Y
Zhang
Jinchao
J
D000293:Adolescent; D000328:Adult; D001327:Autoimmune Diseases / Q000235:genetics*; D004272:DNA, Mitochondrial / Q000235:genetics*; D003922:Diabetes Mellitus, Type 1 / Q000235:genetics*; D003924:Diabetes Mellitus, Type 2 / Q000235:genetics*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017354:Point Mutation
D004272:DNA, Mitochondrial