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Letters to the Editor |
1 Laboratoire de, Génétique Moléculaire, Centre Hospitalier Universitaire, Henri Mondor AP-HP, Créteil, France, 2
INSERM U468, Créteil, France, 3
Service de Médecine F
tale, Institut de Puériculture de Paris, Paris, France, 4
Centre de Traitement des Hémophiles, Groupe Hospitalier Cochin, Saint Vincent de Paul, Paris, France, and 5
Centre de Diagnostic Prénatal, Hôpital Américain de Paris, Neuilly/Seine, France
aAddress correspondence to this author at: Service de Biochimie-Génétique, Laboratoire de Génétique Moléculaire, Centre Hospitalier Universitaire Henri Mondor, 51, av. du Mal-de-Lattre-de-Tassigny, 94010 CRETEIL Cedex, France. Fax 33-1-49-812-842; e-mail costa@im3.inserm.fr.
| The first 20% of the full text of this article appears below. |
To the Editor:
Gene deletions are common events in various hereditary diseases, but conventional PCR often fails to detect such defects in heterozygous patients (1). This highlights the need for a suitable method, easily applicable in a diagnostic laboratory (2). Large deletions account for
5% of cases of hemophilia, inherited as a recessive X-linked disease, making determination of carrier status difficult. It is of particular importance when a pregnant woman is carrying a male fetus. Prenatal testing that uses invasive methods of sample collection carries a risk of miscarriage or fetal injury, and is unnecessary if the woman is not a carrier. We designed a real-time quantitative PCR assay to establish heterozygous status for deletion carriers and to avoid such risky situations in a family in which a large deletion of the F9 gene was
The following articles in journals at HighWire Press have cited this article:
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A. Vencesla, M. J. Barcelo, M. Baena, M. Quintana, M. Baiget, and E. F. Tizzano Marker and real-time quantitative analyses to confirm hemophilia B carrier diagnosis of a complete deletion of the F9 gene Haematologica, November 1, 2007; 92(11): 1583 - 1584. [Abstract] [Full Text] [PDF] |
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