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Left pulmonary artery in 22q11.2 deletion syndrome. Echocardiographic evaluation in patients without cardiac defects and role of Tbx1 in mice.

08:00 EDT 1st April 2019 | BioPortfolio

Summary of "Left pulmonary artery in 22q11.2 deletion syndrome. Echocardiographic evaluation in patients without cardiac defects and role of Tbx1 in mice."

Patients with 22q11 deletion syndrome (22q11.2DS) present, in about 75% of cases, typical patterns of cardiac defects, with a particular involvement on the ventricular outflow tract and great arteries. However, in this genetic condition the dimensions of the pulmonary arteries (PAs) never were specifically evaluated. We measured both PAs diameter in patients with 22q11.2DS without cardiac defects, comparing these data to a normal control group. Moreover, we measured the PAs diameter in Tbx1 mutant mice. Finally, a cell fate mapping in Tbx1 mutants was used to study the expression of this gene in the morphogenesis of PAs.

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This article was published in the following journal.

Name: PloS one
ISSN: 1932-6203
Pages: e0211170

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Medical and Biotech [MESH] Definitions

Condition with a variable constellation of phenotypes due to deletion polymorphisms at chromosome location 22q11. It encompasses several syndromes with overlapping abnormalities including the DIGEORGE SYNDROME, VELOCARDIOFACIAL SYNDROME, and CONOTRUNCAL AMOMALY FACE SYNDROME. In addition, variable developmental problems and schizoid features are also associated with this syndrome. (From BMC Med Genet. 2009 Feb 25;10:16) Not all deletions at 22q11 result in the 22q11deletion syndrome.

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Congenital syndrome characterized by a spectrum of malformations including the absence of the THYMUS and PARATHYROID GLANDS resulting in T-cell immunodeficiency and HYPOCALCEMIA. Other features include defects in the outflow tract of the HEART and craniofacial anomalies (velocardiofacial syndrome). Most cases result from a deletion of chromosome 22q11.2 or mutation in the TBX1 gene.

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