Screening for single gene genetic disease

Area of Science:

• Medical Genetics
• Prenatal Care
• Genetic Counseling

Background:

• Genetic testing is increasingly integrated into prenatal care.
• It provides options for reproductive choices and family preparation for genetic disorders.
• Primary care providers are central to discussing genetic testing with patients.

Purpose of the Study:

• To review the expanding landscape of prenatal genetic testing.
• To highlight the role of carrier screening and fetal diagnostic testing.
• To discuss the implications of the human genome project on prenatal genetic services.

Main Methods:

• Review of current practices in prenatal genetic screening and testing.
• Discussion of ethnic-based risk identification and expanded testing initiatives.
• Consideration of emerging genetic tests and their impact.

Main Results:

• Prenatal genetic testing for single-gene disorders is a growing component of prenatal care.
• Carrier screening and fetal diagnostic testing are vital for informed decisions and preparation.
• Ethnic-specific screening (e.g., familial dysautonomia) and widespread screening (e.g., cystic fibrosis) are expanding.
• Initiatives for fragile X syndrome screening are gaining momentum.

Conclusions:

• The human genome project will drive the identification of more disease-related genes.
• This will broaden prenatal testing options, increasing complexity in counseling and logistics.
• Healthcare resource allocation will need to adapt to these advancements.