- Genetics
- Clinical Characteristics of Diabetes in People with Mitochondrial DNA 3243A>G Mutation in Korea
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Eun Hoo Rho, Sang Ik Baek, Heerah Lee, Moon-Woo Seong, Jong-Hee Chae, Kyong Soo Park, Soo Heon Kwak
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Diabetes Metab J. 2024;48(3):482-486. Published online February 1, 2024
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DOI: https://doi.org/10.4093/dmj.2023.0078
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Abstract
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- Maternally inherited diabetes and deafness (MIDD) is a rare mitochondrial disorder primarily resulting from m.3243A>G mutation. The clinical characteristics of MIDD exhibit significant heterogeneity. Our study aims to delineate these characteristics and determine the potential correlation with m.3243A>G heteroplasmy levels. This retrospective, descriptive study encompassed patients with confirmed m.3243A>G mutation and diabetes mellitus at Seoul National University Hospital. Our cohort comprises 40 patients with MIDD, with a mean age at study enrollment of 33.3±12.9 years and an average % of heteroplasmy of 30.0%± 14.6% in the peripheral blood. The most prevalent comorbidity was hearing loss (90%), followed by albuminuria (61%), seizure (38%), and stroke (33%). We observed a significant negative correlation between % of heteroplasmy and age at diabetes diagnosis. These clinical features can aid in the suspicion of MIDD and further consideration of genetic testing for m.3243A>G mutation.
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Citations
Citations to this article as recorded by
- Clinical Characteristics of Diabetes in People with Mitochondrial DNA 3243A>G Mutation in Korea (Diabetes Metab J 2024;48:482-6)
Eun Hoo Rho, Soo Heon Kwak Diabetes & Metabolism Journal.2024; 48(4): 818. CrossRef - MIDD Patients Should Not Be Confused with MELAS Patients, Even Though Both Carry the m.3243A>G Variant
Josef Finsterer, Sounira Mehri Diabetes & Metabolism Journal.2024; 48(4): 816. CrossRef
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