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  • Title: Simultaneous PCR detection of beta - thalassemia and alpha - thalassemia 1 (SEA type) in prenatal diagnosis of complex thalassemia syndrome.
    Author: Siriratmanawong N, Fucharoen G, Sanchaisuriya K, Ratanasiri T, Fucharoen S.
    Journal: Clin Biochem; 2001 Jul; 34(5):377-80. PubMed ID: 11522274.
    Abstract:
    OBJECTIVE: To establish a rapid PCR method for simultaneous detection of beta-thalassemia and alpha-thalassemia 1 genes for diagnosis of complex alphabeta-thalassemia syndrome. DESIGN AND METHODS: Using multiplex allele specific PCR approach, we evaluated a simultaneous detection of the SEA type alpha-thalassemia 1 and the common Southeast Asian beta-thalassemia and hemoglobin E genes. The system was tested on known cases of double heterozygote for alpha- and beta-thalassemias and in a prenatal diagnosis of complex alphabeta-thalassemia syndrome. RESULTS: Co-inheritance of alpha-thalassemia 1 (SEA type) with each of the common beta-thalassemia genes in Southeast Asian and with hemoglobin E could be identified in a single PCR reaction. A successful application of this simultaneous detection system in prenatal diagnosis of a complex thalassemia syndrome caused by an EFBart's disease was demonstrated in a Thai family. CONCLUSION: We have shown that correct diagnosis of double heterozygosity for alpha-thalassemia 1 and beta-thalassemia or hemoglobin E could be obtained using a simultaneous multiplex PCR. These rapid PCR assays would facilitate characterization and prenatal diagnosis of complex thalassemia syndromes in the regions where both alpha- and beta-thalassemias and hemoglobin E are common.
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