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Complex segregation analysis of hypospadias

Fredell, Louise, Iselius, Lennart, Collins, Andy, Hansson, Einar, Holmner, Staffan, Lundquist, Lars, Läckgren, Göran, Pedersen, Jörgen, Stenberg, Arne, Westbacke, Gunnar and Nordenskjöld, Agneta (2002) Complex segregation analysis of hypospadias Human Genetics, 111, (3), pp. 231-234. (doi:10.1007/s00439-002-0799-y).

Record type: Article

Abstract

Hypospadias, when the urethra opens on the ventral side of the penis, is a common malformation seen in about 3 per 1000 male births. It is considered a complex disorder with both genetic and environmental factors involved in the pathogenesis. Low birth weight is known to be an important risk factor for hypospadias, but several observations speak in favour of genetic factors as well. In order to delineate the relative contribution of the genetic factors behind hypospadias, we performed a complex segregation analysis of 2005 pedigrees in Sweden. The probands were ascertained through the departments of paediatric surgery and departments of plastic surgery and urology in Sweden where boys with hypospadias undergo surgery. In 7% of the ascertained families one or more additional cases of hypospadias were present. The complex segregation analysis showed a heritability of 0.99 and evidence for multifactorial inheritance. The results suggest that hypospadias might be due to monogenic effects in a small proportion of the families, but that there is a multifactorial cause for the majority of the cases.

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Published date: September 2002

Identifiers

Local EPrints ID: 24703
URI: http://eprints.soton.ac.uk/id/eprint/24703
ISSN: 0340-6717
PURE UUID: 8e9c8c66-115e-495a-805d-7695efb097bb
ORCID for Andy Collins: ORCID iD orcid.org/0000-0001-7108-0771

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Date deposited: 03 Apr 2006
Last modified: 17 Jul 2017 16:12

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Contributors

Author: Louise Fredell
Author: Lennart Iselius
Author: Andy Collins ORCID iD
Author: Einar Hansson
Author: Staffan Holmner
Author: Lars Lundquist
Author: Göran Läckgren
Author: Jörgen Pedersen
Author: Arne Stenberg
Author: Gunnar Westbacke
Author: Agneta Nordenskjöld

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