Publication: Prenatal diagnosis for beta-thalassemia syndromes using HRP-labeled oligonucleotide probes at Siriraj Hospital.
Issued Date
1995-12-01
Resource Type
ISSN
01251562
Other identifier(s)
2-s2.0-0029444694
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
The Southeast Asian journal of tropical medicine and public health. Vol.26 Suppl 1, (1995), 282-286
Suggested Citation
P. Winichagoon, S. Fucharoen, N. Siritanaratkul, P. Tassana, V. Thonglairoam, W. Siriboon, S. Kanokpongsakdi Prenatal diagnosis for beta-thalassemia syndromes using HRP-labeled oligonucleotide probes at Siriraj Hospital.. The Southeast Asian journal of tropical medicine and public health. Vol.26 Suppl 1, (1995), 282-286. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/17365
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
Prenatal diagnosis for beta-thalassemia syndromes using HRP-labeled oligonucleotide probes at Siriraj Hospital.
Other Contributor(s)
Abstract
Characterization of the molecular defect of beta-thalassemia in Thais has enabled us to establish prenatal diagnosis for homozygous beta-thalassemia and beta-thalassemia/Hb E. The nature of the beta-thalassemia mutation of each high risk couple or of the previous affected child was firstly identified after counseling. Detection of beta-thalassemia mutations was performed by dot-blot hybridization of the amplified DNA with a set of HRP-labeled ASO-probes specific for the common mutations. If the mutation could be characterized, prenatal diagnosis (PND) would be performed by using DNA extracted either from the chorionic villi (CVS) or amniotic fluid fibroblast in the first trimester of pregnancy or from fetal blood in the second trimester. DNA analysis was carried out in 23 couples at risk of having homozygous beta-thalassemia and 88 couples at risk for beta-thalassemia/Hb E. However, PND was performed by this technique in 22 pregnancies from 21 couples at risk of having homozygous beta-thalassemia children and 86 pregnancies from 71 couples at risk for beta-thalassemia/Hb E; 9 couples underwent more than one prenatal diagnosis. The results showed that, although there are more than 20 beta-thalassemia mutations in the Thai population, PND by DNA analysis could be carried out in more than 95% of the risk couples by using beta(E) and 10 different HRP-labeled ASO probes. This technique was simple, economic and avoided the use of radioactive isotope.