An overview of biochemical genetics

Area of Science:

• Biochemical genetics
• Metabolic disorders
• Genetic diagnostics

Background:

• Inborn errors of metabolism cause toxic accumulation or inhibited products.
• Early-onset disorders present acutely; later forms cause neurodegeneration.
• Accurate diagnosis is crucial for effective treatment and management.

Purpose of the Study:

• To provide an overview of modern biochemical genetic diagnostic methods.
• To highlight the impact of tandem mass spectrometry (MS/MS) in newborn screening.
• To discuss advancements in managing metabolic disorders.

Main Methods:

• Measurement of reaction products and specific enzyme activity.
• Application of tandem mass spectrometry (MS/MS) for multianalyte quantification.
• Overview of diagnostic strategies for inborn errors of metabolism.

Main Results:

• Tandem mass spectrometry (MS/MS) enables rapid, accurate newborn screening.
• Expanded screening detects a wider range of metabolic disorders.
• Novel therapies, including enzyme-replacement therapy, improve patient outcomes.

Conclusions:

• Modern biochemical genetics offers improved diagnostic capabilities.
• MS/MS has revolutionized population-scale newborn screening.
• Combined screening and therapeutic advances enhance metabolic disorder management.