Abstract:
:Congenital heart defects (CHDs) are among the most common birth defects in humans (incidence 8-10 per 1,000 live births). Although their etiology is often poorly understood, most are considered to arise from multifactorial influences, including environmental and genetic components, as well as from less common syndromic forms. We hypothesized that disturbances in left-right patterning could contribute to the pathogenesis of selected cardiac defects by interfering with the extrinsic cues leading to the proper looping and vessel remodeling of the normally asymmetrically developed heart and vessels. Here, we show that heterozygous loss-of-function mutations in the human GDF1 gene contribute to cardiac defects ranging from tetralogy of Fallot to transposition of the great arteries and that decreased TGF- beta signaling provides a framework for understanding their pathogenesis. These findings implicate perturbations of the TGF- beta signaling pathway in the causation of a major subclass of human CHDs.
journal_name
Am J Hum Genetjournal_title
American journal of human geneticsauthors
Karkera JD,Lee JS,Roessler E,Banerjee-Basu S,Ouspenskaia MV,Mez J,Goldmuntz E,Bowers P,Towbin J,Belmont JW,Baxevanis AD,Schier AF,Muenke Mdoi
10.1086/522890subject
Has Abstractpub_date
2007-11-01 00:00:00pages
987-94issue
5eissn
0002-9297issn
1537-6605pii
S0002-9297(07)63874-9journal_volume
81pub_type
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