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Updated: Jul 26, 2025

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Chromosome Screening of Human Preimplantation Embryos by Using Spent Culture Medium: Sample Collection and Chromosomal Ploidy Analysis
Published on: September 7, 2021
2.2K
A pilot study to screen the trisomy 13 from the amniotic fluid puncture
Junbei Xiang1, Linfeng Xie1, Mianxue Liu2
1Sichuan Nursing Vocational College, Chengdu, 610000, Sichuan, People's Republic of China.
Human Cell
|June 15, 2023
Summary
This study introduces a new, cost-effective qPCR method to screen for Trisomy 13 (Patau syndrome). The developed algorithm accurately distinguishes Trisomy 13 samples, enhancing current prenatal screening strategies.
Area of Science:
- Genetics
- Molecular Biology
- Prenatal Diagnostics
Background:
- Trisomy 13 (Patau syndrome) is a severe congenital chromosomal abnormality.
- Current screening methods for Trisomy 13 require improvement for accuracy and accessibility.
- Advanced screening is crucial for managing pregnancies with high-risk fetuses, particularly those conceived by older mothers.
Discussion:
- This research developed a novel, cost-effective, and rapid quantitative PCR (qPCR) screening method for Trisomy 13.
- The method utilizes specific primers targeting genes on chromosomes 1, 2, X, Y, and 13, including LINC00458 on chromosome 13.
- A new mathematical algorithm was created based on qPCR data to effectively differentiate Trisomy 13 samples from normal samples.
Key Insights:
- Successfully established a Sybr green qPCR assay for Trisomy 13 screening.
- Developed and validated a novel algorithm capable of distinguishing Trisomy 13 from euploid samples.
- Demonstrated the potential of this method to complement and enhance existing Trisomy 13 screening protocols.
Outlook:
- The developed qPCR method offers a promising avenue for improving Trisomy 13 detection.
- Future research could explore broader applications of this algorithm in prenatal diagnostics.
- This pilot study paves the way for more accessible and efficient screening tools for chromosomal abnormalities.

