Low incidence of atrial septal defects in nonmammalian vertebrates

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985823%3A_____%2F20%3A00534375" target="_blank" >RIV/67985823:_____/20:00534375 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11110/20:10411834
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1111/ede.12322" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/ede.12322</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/ede.12322" target="_blank" >10.1111/ede.12322</a>

Result language
angličtina
Original language name
Low incidence of atrial septal defects in nonmammalian vertebrates
Original language description
The atrial septum enables efficient oxygen transport by separating the systemic and pulmonary venous blood returning to the heart. Only in placental mammals will the atrial septum form by the coming-together of the septum primum and the septum secundum. In up to one of four placental mammals, this complex morphogenesis is incomplete and yields patent foramen ovale. The incidence of incomplete atrial septum is unknown for groups with the septum primum only, such as birds and reptiles. We found a low incidence of incomplete atrial septum in 11 species of bird (0% of specimens) and 13 species of reptiles (3% of specimens). In reptiles, there was a trabecular interface between the atrial septum and the atrial epicardium which was without a clear boundary between left and right atrial cavities. In developing reptiles (four squamates and one crocodylian), the septum primum initiated as a sheet that acquired perforations and the trabecular interface developed late. We conclude that atrial septation from the septum primum only results in a low incidence of incompleteness. In reptiles, the atrial septum and atrial wall develop a trabecular interface, but previous studies on atrial hemodynamics suggest this interface has a very limited capacity for shunting.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
30106 - Anatomy and morphology (plant science to be 1.6)

Project
<a href="/en/project/GA16-02972S" target="_blank" >GA16-02972S: Elucidating cardiac conduction system formation with phylogenetic approaches</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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