DIAGNOSIS OF DUCHENNE CARRIERS USING MOLECULAR GENETICS TECHNIQUE

Thúy Linh Đinh 1, Vân Khánh Trần 2,
1 Hanoi Obstetrics & Gynecology Hospital,
2 Hanoi medical university

Main Article Content

Abstract

Duchenne muscular dystrophy (DMD) is the most common inherited neuromuscular disease in the muscular dystrophy pathology’s group. This recessive genetic disease is linked to the chromosome X, therefore the diagnosis of the pathologic gene’s carriers for female members in the family of DMD patients play important role in the genetic counseling before birth. This also allows early detections of fetuses in case the pregnant women are at risk. Ojectives: To apply whole genome sequencing (WGS) and MLPA technique in the diagnosis of DMD carriers for 85 females in DMD families. Methods and Subjects: Cross sectional, descriptive study. WGS was performed to confirm the carriers of point mutations on Dystrophine gene, MLPA technique was performed to confirm the carriers of duplication, deletion mutations on Dystrophine gene for females. Results: 52 female members are carriers, accounting for 61%; 33 females do not carry pathologic genes, accounting for 39%. Conclusions: MLPA and WGS could be applied successfully in the diagnosis of DMD carriers in current era.

Article Details

References

1. Bushby, K., et al. (2010). Diagnosis and management of Duchenne muscular dystrophy, part 2: implementation of multidisciplinary care. Lancet Neurol, 9(2), 177-189.
2. Tạ Thành Văn (2011). Bệnh loạn dưỡng cơ Duchene và Becker, Bệnh học phân tử, Nhà xuất bản Y học.
3. Kneppers, A. L., Ginjaar, I. B., and Bakker, E. (2004). Duchenne and Becker muscular dystrophy. Methods Mol Med, 92, 311-41.
4. Mendell R.J., Griggs C.R. (1991), “Muscular dystrophin”, Harrison’s principles of internal medicine, 12th edition, pp. 2112-8.
5. Hwa H.L., Chang Y.Y., Chen C.H. et al (2007), “Multiplex Ligation-dependent Probe Amplification identification of deletions and duplications of the Duchenne muscular dystrophy gene in Taiwanese subjects”, J Formos Med Assoc, 106, pp. 339-46.
6. Janssen B., Hartmann C., Scholz V., et al. (2005). MLPA analysis for the detection of deletions, duplications and complex rearrangements in the dystrophin gene: potential and pitfalls. Neurogenetics, 6(1), 29–35.
7. Prior TW, Bridgeman SJ (2005). Experience and Strategy for the Molecular Testing of Duchenne Muscular Dystrophin. JMD, 7(3), 317-25.
8. Matsuo M. (2002), “Duchenne and Becker muscular dystrophy: from molecular diagnosis to gene therapy”, IUBMB Life, 53, pp. 147-52.