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What cardiovascular defect does my prenatal mouse mutant have, and why?
Simon J Conway1, Agnieszka Kruzynska-Frejtag, Paige L Kneer
1Institute of Molecular Medicine and Genetics and Department of Cell Biology and Anatomy, Medical College of Georgia, Georgia. sconway@mail.mcg.edu
Genesis (New York, N.Y. : 2000)
|December 14, 2002
Summary
Embryonic lethality in mice is often caused by cardiovascular defects. Analyzing the timing of death can help identify specific heart and vascular abnormalities and their causes.
Area of Science:
- Developmental Biology
- Cardiovascular Science
- Genetics
Background:
- Cardiovascular defects are a primary cause of in utero lethality in mouse mutants.
- Other organ systems have limited survival value during embryonic development.
Purpose of the Study:
- To review literature on cardiovascular defects in mouse mutants.
- To provide a guide for analyzing these defects.
Main Methods:
- Review of existing literature on mouse cardiovascular mutants.
- Analysis of developmental timing of lethality.
Main Results:
- Specific cardiovascular abnormalities include yolk-sac circulation failure, poor cardiac function, improper septation, and conduction system defects.
- The timing of embryonic lethality correlates with the type of cardiovascular defect.
Conclusions:
- Cardiovascular defects are critical determinants of embryonic survival in mice.
- Developmental timing of lethality is a key diagnostic indicator for cardiovascular abnormalities.