The role of β-adrenergic activity in the production of cardiac and aortic arch anomalies in chick embryos

Teratology ◽  
1975 ◽  
Vol 12 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Richard J. Hodach ◽  
Albertina E. Hodach ◽  
John F. Fallon ◽  
John D. Folts ◽  
Harold J. Bruyere ◽  
...  
Keyword(s):  
Aortic Arch ◽  
Chick Embryos ◽  
Aortic Arch Anomalies ◽  
Adrenergic Activity

Aortic arch anomalies associated with the administration of epinephrine in chick embryos

Teratology ◽  
1974 ◽  
Vol 9 (2) ◽  
pp. 203-209 ◽  
Author(s):  
Richard J. Hodach ◽  
Enid F. Gilbert ◽  
John F. Fallon
Keyword(s):  
Aortic Arch ◽  
Chick Embryos ◽  
Aortic Arch Anomalies

Diagnostic Role of Magnetic Resonance Imaging in Identifying Aortic Arch Anomalies

2008 ◽  
Vol 3 (2) ◽  
pp. 117-123 ◽  
Author(s):  
Massimiliano Cantinotti ◽  
Sanjeet Hegde ◽  
Aaron Bell ◽  
Reza Razavi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Aortic Arch ◽  
Resonance Imaging ◽  
Aortic Arch Anomalies ◽  
Diagnostic Role

Conotruncal heart defects and aortic arch anomalies in fetuses with 22q11.2 deletion syndrome

2020 ◽  
Author(s):  
I.V. Novikova, O.M. Khurs, T.V. Demidovich et all
Keyword(s):  
Aortic Arch ◽  
Heart Defects ◽  
22Q11.2 Deletion Syndrome ◽  
Ventricular Outflow Tract ◽  
Double Outlet Right Ventricle ◽  
Interrupted Aortic Arch ◽  
Left Ventricular ◽  
Deletion Syndrome ◽  
22Q11.2 Deletion ◽  
Aortic Arch Anomalies

16 second trimester fetuses with 22q11.2 deletion syndrome have been examined at anatomic-pathological investigation. Main cardiovascular diseases were ascending aorta hypoplasia with aortic valve stenosis (n = 6; 37.5%), truncus arteriosus (n = 5; 31.25%), tetralogy of Fallot (n = 3; 18.75%) and double-outlet right ventricle (n = 1; 6.25%). Ventricular septal defect was present in 16 cases. Associated aortic arch anomalies included interrupted aortic arch (n = 9; 56.25%), right aortic arch (n = 6; 37.5%), retroesophageal ring (n = 1; 6.25%) and aberrant right subclavian arteria (n = 5; 31.25%). 5 fetuses had left ventricular outflow tract obstructive lesions with interrupted aortic arch of type B combined with aberrant right subclavian arteria.

scholarly journals Study on the views and methods of ultrasonic screening and diagnosis for abnormal aortic arch in infants

2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Xinjian He ◽  
Jiaoyang Chen ◽  
Gaoyang Li
Keyword(s):  
Diagnostic Accuracy ◽  
Aortic Arch ◽  
Subclavian Artery ◽  
Coarctation Of The Aorta ◽  
Double Aortic Arch ◽  
Aberrant Right Subclavian Artery ◽  
Coincidence Rate ◽  
Aortic Arch Anomalies ◽  
Screening Sensitivity ◽  
Axis View

Abstract Background The purpose of this study was to explore echocardiographic views and methods of aortic arch anomalies in infants, so as to improve the screening sensitivity and diagnostic accuracy. Methods 140 children with abnormal aortic arch diagnosed by ultrasound in Children’s Hospital of Hebei Province from January 2014 to December 2019 were selected for retrospective analysis. All were confirmed by surgery or/and computerized tomography angiography. Series of views for aortic arch (the three-vessel and tracheal view, aortic arch short axis view, left aortic arch long axis view, aortic arch long axis continuous scan views) were performed in all cases on the basis of the routine views of echocardiography. The screening sensitivity and diagnostic coincidence rate of different echocardiographic views for aortic arch anomalies were analyzed. Results Among the 140 infants, right aortic arch were 21 cases (6/21 were accompanied by mirror branch and 15/21 were with aberrant left subclavian artery). Left aortic arch with aberrant right subclavian artery were 2 cases, and double aortic arch with both arches open were 20 cases. Double aortic arch with left arch atresia were 2 cases, and atresia of the proximal aorta with aortic arch dysplasia was 1 case. Coarctation of the aorta were 67 cases, and interruption of aortic arch were 27 cases. All the patients were correctly diagnosed except that 2 infants with interruption of aortic arch were incorrectly diagnosed as coarctation of the aorta, and 1 infant with coarctation of the aorta was misdiagnosed as interruption of aortic arch by echocardiography. The screening sensitivities of four views and four-view combination for abnormal aortic arch were 99.3, 73.6, 87.1, 99.3, and 100%; the diagnostic coincidence rates were 85.7, 27.1,66.4, 95.0%, and 97.9% respectively. On the basis of traditional left aortic long axis view, other three views had their own advantages. The screening sensitivity and diagnostic coincidence rate of four-view combination were significantly improved. Conclusions The three-vessel trachea view is simple and feasible, which is suitable for screening abnormal aortic arch. The combination of four views conduces to improving screening sensitivity and diagnostic accuracy of aortic arch abnormalities.

Operation for Aortic Arch Anomalies

1981 ◽  
Vol 31 (5) ◽  
pp. 426-432 ◽  
Author(s):  
James V. Richardson ◽  
Donald B. Doty ◽  
Nicholas P. Rossi ◽  
J.L. Ehrenhaft
Keyword(s):  
Aortic Arch ◽  
Aortic Arch Anomalies

scholarly journals Multi-detector computed tomography (MDCT) as a diagnostic tool in assessment of thoracic aortic anomalies in pediatric patients

2021 ◽  
Vol 52 (1) ◽  
Author(s):  
Dawlat Nader Eltatawy ◽  
Fatma Anas Elsharawy ◽  
Aly Aly Elbarbary ◽  
Raghda Ghonimy Elsheikh ◽  
Manal Ezzat Badawy
Keyword(s):  
Computed Tomography ◽  
Aortic Arch ◽  
Pediatric Patients ◽  
Interrupted Aortic Arch ◽  
Diagnostic Tools ◽  
Non Invasive ◽  
Branching Patterns ◽  
Anatomic Variants ◽  
Multi Detector Computed Tomography

Abstract Background A wide variety of congenital thoracic aortic variants and pathological anomalies could be assessed recently in diagnostic and interventional radiology. Multi-detector computed tomography (MDCT) is one of the most important non-invasive diagnostic tools for their detection. The aim of the study was to evaluate role of MDCT scanning for diagnosis of thoracic aortic anatomic variants and diseases in pediatric patients. Results Thirty patients (15 male and 15 female), mean age (8.49 ± 20.29 months) were diagnosed with different thoracic aortic anomalies by MDCT then confirmed by surgical results. MDCT was more sensitive than echocardiography in detection of hypo plastic arch, vascular rings, interrupted aortic arch anomalies, and aortic coarctation. Both MDCT and echocardiography showed 100% sensitivity in their detection of TGA, TOF, and PDA. MDCT detected 6 cases of right-sided aortic arch while echo missed 2 cases. Different aortic arch branching patterns and coronary origin were better demonstrated by MDCT. Conclusion 320-Multi-detector computed tomography is a reliable tool for optimal detection of thoracic aortic anomalies and preoperative planning.

Aortic Arch Anomalies

2021 ◽  
pp. 430-462
Author(s):  
Jan Marek ◽  
Matthew Fenton ◽  
Sachin Khambadkone
Keyword(s):  
Aortic Arch ◽  
Aortic Arch Anomalies

Notochord to endoderm signaling is required for pancreas development

Development ◽  
1997 ◽  
Vol 124 (21) ◽  
pp. 4243-4252 ◽  
Author(s):  
S.K. Kim ◽  
M. Hebrok ◽  
D.A. Melton
Keyword(s):  
Gene Expression ◽  
Developmental Stage ◽  
Pancreas Development ◽  
Chick Embryos ◽  
Carboxypeptidase A ◽  
Bud Development ◽  
Dorsal Pancreas ◽  
Stepwise Manner

The role of the notochord in inducing and patterning adjacent neural and mesodermal tissues is well established. We provide evidence that the notochord is also required for one of the earliest known steps in the development of the pancreas, an endodermally derived organ. At a developmental stage in chick embryos when the notochord touches the endoderm, removal of notochord eliminates subsequent expression of several markers of dorsal pancreas bud development, including insulin, glucagon and carboxypeptidase A. Pancreatic gene expression can be initiated and maintained in prepancreatic chick endoderm grown in vitro with notochord. Non-pancreatic endoderm, however, does not express pancreatic genes when recombined with the same notochord. The results suggest that the notochord provides a permissive signal to endoderm to specify pancreatic fate in a stepwise manner.

Measurements of cell adhesion

Development ◽  
1973 ◽  
Vol 30 (2) ◽  
pp. 499-509
Author(s):  
Janet E. Hornby
Keyword(s):  
Cell Types ◽  
Random Motion ◽  
Chick Embryos ◽  
Collision Efficiency ◽  
20 Nm ◽  
Kidney Liver ◽  
Different Cell Types ◽  
Laminar Shear ◽  
Lyophobic Sols

Cell suspensions were prepared from the kidney, liver and heart of chick embryos of 5 or 8 days of incubation, and from the limb-buds of chick embryos of 5, 6, 7, 8 or 9 days of incubation. When these suspensions were aggregated under laminar shear in a Couette viscometer or random motion in a reciprocating shaker they obeyed the theoretical relationships derived for flocculating lyophobic sols. The values of the collision efficiency found for the different cell types under given conditions were used to calculate the force of interaction between cells of each type. The force of interaction ranged between 9 × 10−11 N (8-day heart) and 3 × 10−9 N (8-day liver). The forces of interaction between cells appear to be responsible for aligning the membranes of adjacent cells with a 10–20 nm gap. It is possible to arrange the cell types in a hierarchy based on the forces of interaction between them. The possible role of these forces in cell specificity is considered.

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