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Genes regulating embryonic and fetal survival
1Department of Biochemistry & Molecular Biology, University of Calgary Faculty of Medicine, HSC Room 2279, 3330 Hospital Drive, N.W., Calgary, Alberta T2N 4N1 Canada. jcross@ucalgary.ca
Theriogenology
|February 24, 2001
Summary
Early embryonic mortality in animals and humans stems from developmental defects. Understanding placental and cardiovascular system links is key to improving reproductive technologies like IVF.
Area of Science:
- Developmental Biology
- Reproductive Science
- Genetics
Background:
- Embryonic mortality is frequent in early pregnancy, impacting livestock and human reproduction.
- Defects in implantation, pregnancy recognition, and placental/cardiovascular development cause early embryonic loss.
- Molecular mechanisms underlying these critical early processes are under intense investigation.
Purpose of the Study:
- To elucidate the molecular mechanisms governing early embryonic development.
- To understand the intricate links between placental and cardiovascular system development.
- To identify factors limiting the success of assisted reproductive technologies.
Main Methods:
- Utilizing transgenic and gene knockout mouse models.
- Investigating molecular pathways essential for embryogenesis.
- Analyzing placental and cardiovascular development and function.
Main Results:
- Placental defects arise from diverse molecular mechanisms affecting trophoblast, mesenchymal, or vascular components.
- Placental and cardiovascular functions are intrinsically linked, with shared developmental genes.
- Placental hormones significantly influence maternal and fetal cardiovascular function.
Conclusions:
- Molecular insights into early embryogenesis can address limitations in livestock embryo transfer, IVF, and cloning.
- Understanding the placenta-cardiovascular axis is crucial for improving reproductive success.
- Gene function studies in mice provide a foundation for enhancing embryonic development.