DNA Sequence Analysis in Clinical Medicine, Proceeding Cautiously.

Area of Science:

• Genomics
• Molecular Biology
• Medical Genetics

Background:

• Genomic and genetic factors are crucial for disease diagnosis, management, and identifying at-risk family members.
• Advancements in gene mapping and genome sequencing have led to the development of microarrays for analyzing genomic variants.

Purpose of the Study:

• To review different generations of sequencing techniques, focusing on exome and whole genome sequencing.
• To discuss the clinical applications of these sequencing methods in various medical contexts.
• To highlight advancements in variant calling standardization and pathogenicity assessment.

Main Methods:

• Review of exome sequencing (ES) and whole genome sequencing (WGS) technologies and their evolution.
• Analysis of clinical case studies demonstrating the diagnostic utility of ES.
• Examination of WGS applications in population studies and patient cohorts for variant detection.

Main Results:

• Exome sequencing has significantly improved diagnosis and medical management for numerous patients.
• Whole genome sequencing is vital for analyzing nucleotide and structural variants in large-scale studies and specific patient groups.
• DNA sequencing applications extend to prenatal diagnosis, cancer diagnostics (including cell-free DNA and exosomes), and understanding complex diseases like schizophrenia and neurodegenerative disorders.

Conclusions:

• DNA sequencing technologies are indispensable tools for modern diagnostics and personalized medicine.
• Understanding genomic variants, from rare to common, is key to elucidating disease pathogenesis.
• Pharmacogenetic variant detection through DNA sequencing is increasingly important for tailored therapeutic strategies.