Phát hiện một trường hợp mang đột biến A3243 thuộc hội chứng MELAS
Mitochondrial genome A3243G mutation in the tRNALeu(UUR) encodinggene (MTTL)is the main cause of mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS). This mutation exists in heteroplasmic form and severity of the disease is affected by many factors including heteroplasmy...
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| Tác giả chính: | , , , , , |
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| Định dạng: | Journal Article |
| Ngôn ngữ: | Vietnamese |
| Thông tin xuất bản: |
Đại học Quốc gia Hà Nội
2017
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| Chủ đề: | |
| Truy cập trực tuyến: | http://repository.vnu.edu.vn/handle/VNU_123/60765 |
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| Tóm tắt: | Mitochondrial genome A3243G mutation in the tRNALeu(UUR) encodinggene (MTTL)is the main cause of mitochondrial encephalopathy, lactic acidosis and stroke-like episodes (MELAS). This mutation exists in heteroplasmic form and severity of the disease is affected by many factors including heteroplasmy level.
In this study, a pediatric proband (female, 8 years old) was found to carry A3243G mutation at 77.6% of heteroplasmy by using PCR-RFLP in combination with real-time PCR. The results of the A3243G mutation analysis of the proband’s family showed that her mother without any symptoms of encephalopathyalso carried the mutation at 7.9% of heteroplasmy whereas the mutation was not found in the proband’s healthy father and healthy sister, indicating that the proband received the A3243G mutation from her mother and the expression of MELAS syndromes depended on the level of heteroplasmy. |
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