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Updated: Jun 27, 2026
09:03
Semiconductor Sequencing for Preimplantation Genetic Testing for Aneuploidy
Published on: August 25, 2019
[Rapid genetic prenatal diagnosis for achondroplasia]
Hai-Yan Zhu1, Ying Yang, Jie Li
1Department of Obstetrics and Gynecology, Affiliated Drum Tower Hospital of Medical College, Nanjing University, Nanjing 210008, China.
Zhonghua Fu Chan Ke Za Zhi
|December 18, 2008
Summary
This study explored genetic prenatal diagnosis for achondroplasia (ACH). Denaturing high-performance liquid chromatography (DHPLC) and restriction enzyme analysis effectively detected FGFR3 gene mutations, with DHPLC showing greater speed and sensitivity for ACH diagnosis.
Area of Science:
- Medical Genetics
- Prenatal Diagnostics
Context:
- Achondroplasia (ACH) is a genetic disorder affecting bone growth.
- Accurate prenatal diagnosis is crucial for genetic counseling and management.
- The fibroblast growth factor receptor 3 (FGFR3) gene is implicated in ACH pathogenesis.
Purpose:
- To evaluate and compare the efficacy of denaturing high performance liquid chromatography (DHPLC) and restriction enzyme digestion analysis for the genetic prenatal diagnosis of achondroplasia (ACH).
- To detect pathogenic mutations in the FGFR3 gene associated with ACH in three distinct pedigrees.
Summary:
- Three ACH pedigrees underwent genetic analysis using DHPLC, restriction enzyme digestion (SfcI and MspI), and sequencing.
- DHPLC and enzyme digestion successfully identified FGFR3 gene mutations in ACH patients and fetuses.
- Sequencing confirmed specific mutations (1138 G-->A and G-->C) in affected individuals, with DHPLC demonstrating superior speed and sensitivity.
Impact:
- DHPLC is identified as a rapid, convenient, and sensitive method for genetic and prenatal diagnosis of achondroplasia.
- This study provides valuable insights into molecular diagnostic approaches for ACH, aiding in clinical decision-making.
- The findings support the integration of advanced molecular techniques into routine prenatal screening for skeletal dysplasias.
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