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  • Title: Validation and comparison of two quantitative real-time PCR assays for direct detection of DMD/BMD carriers.
    Author: Hayat Nosaeid M, Mahdian R, Jamali S, Maryami F, Babashah S, Maryami F, Karimipoor M, Zeinali S.
    Journal: Clin Biochem; 2009 Aug; 42(12):1291-9. PubMed ID: 19439162.
    Abstract:
    OBJECTIVES: To develop a robust and reliable assay for direct identification of female carriers of deletions in the dystrophin gene. DESIGN AND METHODS: We compared two quantitative real-time PCR approaches for the detection of the deletions of exons 4, 17, 47, and 50 in DMD/BMD carriers. One hundred and ten individuals from 26 unrelated families, including 8 large pedigrees characterized by having at least two DMD affected males, were studied. Carrier status of the subjects was also evaluated by MLPA. RESULTS: The results showed the gene dosage ratio of 0.99+/-0.14 and 1.09+/-0.19 for normal individuals and 0.48+/-0.06 and 0.50+/-0.10 for carriers in SYBR green and TaqMan probe assays, respectively. Carrier status was accurately attributed in 100% of cases and confirmed by MLPA. CONCLUSION: Quantitative real-time PCR can be used as a direct method for carrier detection in female relatives of DMD patients with known deletions. The results are comparable to the MLPA data.
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