[Preimplantation genetic diagnosis for beta-thalassemia].
Zhonghua Yi Xue Za Zhi
; 83(4): 298-301, 2003 Feb 25.
Article
en Zh
| MEDLINE
| ID: mdl-12812646
OBJECTIVE: To investigate the effect of in vitro fertilization and embryo transfer (IVF-ET) and preimplantation genetic diagnosis (PGD) for the couples at risk of having children with beta-thalassemia. METHODS: Four couples carrying different thalassemia mutations received standard IVF treatment. Embryo biopsy was conducted. Single blastomeres were genotyped by a protocol involving primer extension preamplification, nested polymerase chain reaction and reverse dot-blot analysis. Only the unaffected embryos were transferred to the uterus. RESULTS: A total of 97 oocytes were retrieved from the four female carriers. Among them, 83% showed two pronuclei. Embryo biopsy was performed on 47 of these embryos. The amplification efficiency was 84.8%. The average ADO rate was 14.9%. Ten unaffected embryos were transferred. A twin pregnancy with one blighted ovum was confirmed at 7 weeks' gestation by ultrasonography and one normal baby and one carrier of thalassemia mutation were born finally. CONCLUSION: This unaffected pregnancy resulting from PGD for beta-thalassemia demonstrates that PGD technique can be a powerful diagnostic tool for couples carrying beta-thalassemia mutations who desire a healthy child and wish to avoid abortion of an affected fetus.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Talasemia beta
/
Diagnóstico Preimplantación
Tipo de estudio:
Diagnostic_studies
/
Guideline
Límite:
Female
/
Humans
/
Pregnancy
Idioma:
Zh
Revista:
Zhonghua Yi Xue Za Zhi
Año:
2003
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
China