Prenatal Evaluations: A Prologue to Postnatal Pathology Interpretations.

Area of Science:

• Developmental biology
• Toxicology
• Genetics

Background:

• Animal models are essential for studying human birth defects.
• Rodent models, particularly mice and rats, are widely used for safety assessments, gene function studies, and disease modeling.

Purpose of the Study:

• To highlight the significance of evaluating mouse embryos, placentas, and metrial glands.
• To provide strategies for these evaluations and discuss postnatal development.

Main Methods:

• Utilizing mice for genetic alterations to identify embryogenesis genes.
• Employing rats for toxicological studies.
• Examining prenatal and postnatal phenotypes.

Main Results:

• Embryo and placenta evaluation offers insights into postnatal abnormalities, including structural defects, cellular issues, and mortality.
• Defect severity influences pup survival, growth, and overall health.

Conclusions:

• Comprehensive evaluation of mouse embryonic and placental development is vital for understanding birth defects.
• This approach supports the identification of genes critical for embryogenesis and the assessment of environmental impacts on development.