Original Articles Evidence for Digenic Inheritance in Some Cases of Antley
26 J Med Genet 2000;37:26–32 Original articles J Med Genet: first published as 10.1136/jmg.37.1.26 on 1 January 2000. Downloaded from Department of Clinical Genetics, Institute of Child Health, 30 Guilford Street, London WC1N 1EH, UK Evidence for digenic inheritance in some cases of W Reardon M Baraitser Antley-Bixler syndrome? R M Winter Molecular Genetics Unit, Institute of Child Health, London, UK William Reardon, Anne Smith, John W Honour, Peter Hindmarsh, Debipriya Das, A Smith Gill Rumsby, Isabelle Nelson, Sue Malcolm, Lesley Adès, David Sillence, I Nelson Dhavendra Kumar, Celia DeLozier-Blanchet, Shane McKee, Thaddeus Kelly, S Malcolm Wallace L McKeehan, Michael Baraitser, Robin M Winter Department of Chemical Pathology, University College London Hospitals, London, UK J W Honour Abstract The Antley-Bixler syndrome represents the D Das The Antley-Bixler syndrome has been severe end of the spectrum of syndromic G Rumsby thought to be caused by an autosomal craniosynostosis. Many such patients have London Centre for recessive gene. However, patients with this choanal atresia and severe respiratory distress, Paediatric often resulting in early death. In contrast with Endocrinology, phenotype have been reported with a new University College dominant mutation at the FGFR2 locus as most clinically similar forms of syndromic Hospital, London, UK well as in the oVspring of mothers taking craniosynostosis, which are transmitted in an P Hindmarsh the antifungal agent fluconazole during autosomal dominant manner, Antley-Bixler Departments of early pregnancy. In addition to the cranio- syndrome has been thought to be an autosomal Clinical Genetics and recessive disorder.7 This is based upon three Paediatrics and Child synostosis and joint ankylosis which are the 8–10 Health, New Children’s clinical hallmarks of the condition, many reports of aVected sibs and the birth of Hospital, Parramatta, patients, especially females, have genital aVected subjects to consanguineous par- NSW 2124, Australia ents.91112It should be noted that joint ankylo- abnormalities.
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