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Bicuspid aortic valves in hearts with other congenital heart disease.
TLDR
The findings cast doubt on the assumption that altered fetal blood flow through the aortic valve may be the main factor producing the bicuspid condition and support the hypothesis that most bic Suspid aorti valves are expressions of a developmental complex that affects the aortsic arch and the wall of the ascending aorta as well as theAorta valve.
Anatomy and formation of congenital bicuspid and quadricuspid pulmonary valves in Syrian hamsters
TLDR
The present study was designed to assess the anatomical features of bicuspid and quadricuspid pulmonary valves in Syrian hamsters as well as to elucidate the mechanisms involved in the formation of these defective valves.
Formation of cartilage in the heart of the Spanish terrapin, Mauremys leprosa (Reptilia, Chelonia)
TLDR
The findings are consistent with the assumption that the precursors of the cardiac chondrocytes in chelonians are neural crest‐derived cells of nonmuscular nature, and point to the possibility that cells from the neural crest populate the embryonic pars fibrosa of the horizontal septum, thereby contributing to its alignment with the aorticopulmonary septums.
Genetically alike Syrian hamsters display both bifoliate and trifoliate aortic valves
TLDR
It is inferred that the same underlying genotype may account for the whole range of valvar morphological variants, suggesting that factors other than genetic ones are acting during embryonic life, creating the so‐called intangible variation or developmental noise, and playing an important role in the definitive anatomic configuration of the valve.
Number of Coronary Ostia in Syrian Hamsters (Mesocricetus auratus) with Normal and Anomalous Coronary Arteries
TLDR
The present observations lead to the notion that in the Syrian hamster, the septal artery should be regarded as a third coronary artery, similar to that in normal coronary arteries and several coronary anomalies characterized by the absence of a left coronary artery originating from the left aortic sinus.
Coronary artery anomalies and aortic valve morphology in the Syrian hamster
TLDR
In the Syrian hamster, the morphogenetic mechanisms involved in the formation of congenital anomalous aortic valves and anomalies in the origin of the left coronary artery, respectively, are strongly related from an aetiological viewpoint.
Blood Supply to the Interventricular Septum of the Heart in Rodents with Intramyocardial Coronary Arteries
TLDR
Existence of one or rarely two septal arteries is the most constant feature of the coronary artery arrangement in rodents with intramyocardial coronary arteries.
The conus arteriosus of the adult gilthead seabream (Sparus auratus)
TLDR
The presence of a distinct conus arteriosus in the heart of an evolutionary advanced teleost species indicates that the conus is not a vestigial segment from the evolutionary or embryological points of view.
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