The Role of Genetics in Preterm Birth.

Area of Science:

• Genetics
• Reproductive Health
• Perinatology

Background:

• Preterm birth (PTB) affects 11% of live births and is a leading cause of infant mortality.
• Genetic variations are significant risk factors for PTB.
• Previous research has explored various biological pathways implicated in PTB.

Purpose of the Study:

• To provide a comprehensive review of current research on the genetics of preterm birth.
• To summarize findings on genetic markers and their association with PTB risk.
• To evaluate the effectiveness of different genetic and multi-omics approaches in understanding PTB.

Main Methods:

• A literature search was conducted in PubMed for English-language studies on PTB genetics.
• Included studies focused on genetic associations, pathway analysis, and multi-omics data integration.
• Evaluated the power and replicability of identified genetic variants.

Main Results:

• Genes in inflammatory, immunological, endocrine, metabolic, and vascular pathways are implicated in PTB.
• Many published genetic studies lacked sufficient power and yielded inconclusive results.
• Large, hypothesis-free studies identified and replicated novel PTB-associated variants.
• Single-omics datasets (genomic, transcriptomic, epigenomic) have been largely unsuccessful for PTB prediction.
• Integration of multi-omics data shows the most promising results for PTB prediction.

Conclusions:

• The genetics of preterm birth are complex, involving multiple biological pathways.
• Single-omic approaches are insufficient for clinical PTB prediction.
• Integrating data from multiple omics datasets offers the most promising avenue for advancing PTB research and clinical application.