2017 Group Project 3: Difference between revisions
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Revision as of 19:01, 13 September 2017
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Heart
Introduction
The cardiovascular system is the first system to develop and function in the human embryo, and at week four of prenatal development, the heart begins to beat. At the beginning of stage nine (middle of week three) we see the functional folding of the neural plate and development of the neural tube give rise to the differentiation of the germ layers into products that eventually form the fully functional embryonic heart. Advances in technology, ‘coupled with the use of suitable animal models’ has allowed the evolution of our understanding of embryological cardiac developmental, and allows us to observe how it has stemmed from the more “classical accounts”.
The cardiovascular system is the first system to develop and function in the human embryo. Its normal development is vital for fetal life and any defects occurring in its developmental processes can lead to continental heart abnormalities. Advances in technology, ‘coupled with the use of suitable animal models’ has allowed the evolution of our understanding of embryological cardiac developmental and the mechanism underlying this development. This knowledge assists our understanding of how heart abnormalities arise and the possible treatments to be developed in the future.
<pubmed> PMC1767747</pubmed>
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Developmental Origin
PubMed Searches:
[2] <pubmed>PMC1767747</pubmed>
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Developmental Timeline
Embryonic Developmental Timeline
Historic Developmental Timeline
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Developmental Signalling Processes
Heart development is a very complicated and dynamic process that requires a high degree of control and regulation. This control is achieved by different molecular pathways expressed at different stages of heart development.
Wnt signalling
Both canonical and non-canonical Wnt signalling pathways have a role in different stages of cardiac development. These two pathways may have an overlapping role in in cardiac development or they may work independent. The canonical Wnt signalling pathway involves β-catenin and is activated by a number of ligands such as Wnt-1, Wnt-2, Wnt-3A, Wnt-8A, Wnt-8B, Wnt-8C, Wnt-10A, and Wnt-10B. However, the non-canonical signalling pathway is associated with planar cell polarity and Wnt/Ca2+ pathways that are activated by different ligands such as Wnt4, Wnt5A, Wnt5B, Wnt6, Wnt7A, Wnt7B, and Wnt11 [1].
Transforming growth factor β
Mark Hill (talk) 15:57, 31 August 2017 (AEST) OK this image requires a better descriptive name than "Fig2.jpg"
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Current Research And Findings
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[|The Role of Na+/Ca2+ Exchanger 1 in Maintaining Ductus Arteriosus Patency]
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Animal Models
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Abnormal Development
Ventricular Septal Defect
[12] - ventricular septal defect (Penny and Vick)
Atrial Septal Defect
Atrioventricular Septal Defect
Misc. References
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Future Questions
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Glossary of Terms
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References
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