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Le Bras A, Salomon LJ, Bussières L, Malan V, Elie C, Mahallati H, Ville Y, Vekemans M, Durand-Zaleski I. Cost-effectiveness of five prenatal screening strategies for trisomies and other unbalanced chromosomal abnormalities: model-based analysis. Ultrasound Obstet Gynecol 2019; 54:596-603. [PMID: 31006923 DOI: 10.1002/uog.20301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/08/2019] [Accepted: 04/12/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To evaluate the cost-effectiveness of five prenatal screening strategies for trisomies (13/18/21) and other unbalanced chromosomal abnormalities (UBCA), following the introduction of cell-free DNA (cfDNA) analysis. METHODS A model-based cost-effectiveness analysis was performed to estimate prevalence, safety, screening-program costs and healthcare costs of five different prenatal screening strategies, using a virtual cohort of 652 653 pregnant women in France. Data were derived from the French Biomedicine Agency and published articles. Uncertainty was addressed using one-way sensitivity analysis. The five strategies compared were: (i) cfDNA testing for women with a risk following first-trimester screening of ≥ 1/250; (ii) cfDNA testing for women with a risk of ≥ 1/1000 (currently recommended); (iii) cfDNA testing in the general population (regardless of risk); (iv) invasive testing for women with a risk of ≥ 1/250 (historical strategy); and (v) invasive testing for women with a risk of ≥ 1/1000. RESULTS In our virtual population, at similar risk thresholds, cfDNA testing compared with invasive testing was cheaper but less effective. Compared with the historical strategy, cfDNA testing at the ≥ 1/1000 risk threshold was a more expensive strategy that detected 158 additional trisomies, but also 175 fewer other UBCA. Implementation of cfDNA testing in the general population would give an incremental cost-effectiveness ratio of €9 166 689 per additional anomaly detected compared with the historical strategy. CONCLUSION Extending cfDNA to lower risk thresholds or even to all pregnancies would detect more trisomies, but at greater expense and with lower detection rate of other UBCA, compared with the historical strategy. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- A Le Bras
- AP-HP, DRCI-URC Eco Ile-de-France, Paris, France
| | - L J Salomon
- AP-HP, Hôpital Necker-Enfants Malades, Department of Obstetrics and Gynecology, Paris, France
- Collège Français d'Echographie Foetale (CFEF), France
| | - L Bussières
- AP-HP, Hôpital Necker-Enfants Malades, Department of Obstetrics and Gynecology, Paris, France
- AP-HP, Hôpital Necker-Enfants Malades, Clinical Unit Research/Clinic Investigation Center, Paris, France
| | - V Malan
- INSERM U1163, Hôpital Necker-Enfants Malades, Paris, France
- AP-HP, Hôpital Necker-Enfants Malades, Department of Histology, Embryology and Cytogenetics, Paris, France
| | - C Elie
- AP-HP, Hôpital Necker-Enfants Malades, Clinical Unit Research/Clinic Investigation Center, Paris, France
| | - H Mahallati
- AP-HP, Hôpital Necker-Enfants Malades, Department of Obstetrics and Gynecology, Paris, France
| | - Y Ville
- AP-HP, Hôpital Necker-Enfants Malades, Department of Obstetrics and Gynecology, Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - M Vekemans
- AP-HP, Hôpital Necker-Enfants Malades, Department of Histology, Embryology and Cytogenetics, Paris, France
- Université Paris Descartes-Sorbonne Paris Cité, Institut Imagine, Paris, France
| | - I Durand-Zaleski
- AP-HP, DRCI-URC Eco Ile-de-France, Paris, France
- Assistance Publique-Hôpitaux de Paris, Service de Santé Publique, Henri Mondor-Albert-Chenevier, Créteil, France
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Egloff M, Hervé B, Quibel T, Jaillard S, Le Bouar G, Uguen K, Saliou AH, Valduga M, Perdriolle E, Coutton C, Coston AL, Coussement A, Anselem O, Missirian C, Bretelle F, Prieur F, Fanget C, Muti C, Jacquemot MC, Beneteau C, Le Vaillant C, Vekemans M, Salomon LJ, Vialard F, Malan V. Diagnostic yield of chromosomal microarray analysis in fetuses with isolated increased nuchal translucency: a French multicenter study. Ultrasound Obstet Gynecol 2018; 52:715-721. [PMID: 29027723 DOI: 10.1002/uog.18928] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 10/04/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To determine the frequency and nature of copy number variants (CNVs) identified by chromosomal microarray analysis (CMA) in a large cohort of fetuses with isolated increased nuchal translucency thickness (NT) ≥ 3.5 mm. METHODS This was a retrospective, multicenter study, including 11 French hospitals, of data from the period between April 2012 and December 2015. In total, 720 fetuses were analyzed by rapid aneuploidy test and the fetuses identified as euploid underwent CMA. CNVs detected were evaluated for clinical significance and classified into five groups: pathogenic CNVs; benign CNVs; CNVs predisposing to neurodevelopmental disorders; variants of uncertain significance (VOUS); and CNVs not related to the phenotype (i.e. incidental findings). RESULTS In 121 (16.8%) fetuses, an aneuploidy involving chromosome 13, 18 or 21 was detected by rapid aneuploidy test and the remaining 599 fetuses were euploid. Among these, 53 (8.8%) had a CNV detected by CMA: 16/599 (2.7%) were considered to be pathogenic, including 11/599 (1.8%) that were cryptic (not visible by karyotyping); 7/599 (1.2%) were CNVs predisposing to neurodevelopmental disorders; and 8/599 (1.3%) were VOUS. Additionally, there was one (0.2%) CNV that was unrelated to the reason for referral diagnosis (i.e. an incidental finding) and the remaining 21 were benign CNVs, without clinical consequence. Interestingly, we identified five genomic imbalances of the 1q21.1 or 15q11.2 regions known to be associated with congenital heart defects. CONCLUSION Our study demonstrates the benefit of CMA in the etiological diagnosis of fetuses with isolated increased NT. It is worth noting that most (69%) of the detected pathogenic CNVs were cryptic. Copyright © 2017 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- M Egloff
- Service d'Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, APHP, Paris, France
- Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - B Hervé
- Unité de Cytogénétique, CHI de Poissy St Germain, Poissy, France
- EA7404-GIG, UFR des Sciences de la Santé Simone Veil, UVSQ, Montigny-le-Bretonneux, France
| | - T Quibel
- Service de Gynécologie Obstétrique, CHI de Poissy St Germain, Poissy, France
| | - S Jaillard
- Service de Cytogénétique et Biologie Cellulaire, CHU de Rennes, Rennes, France
| | - G Le Bouar
- Département de Gynécologie Obstétrique et Reproduction Humaine, CHU de Rennes, Rennes, France
| | - K Uguen
- Laboratoire de Cytogénétique, Cytologie et Biologie de la Reproduction, CHRU, Brest, France
| | - A-H Saliou
- Centre Pluridisciplinaire de Diagnostic Prénatal, CHRU, Brest, France
| | - M Valduga
- Service de Génétique, CHRU Nancy-Brabois, Nancy, France
| | - E Perdriolle
- Service d'Obstétrique, CHRU Nancy-Brabois, Nancy, France
| | - C Coutton
- Laboratoire de Génétique Chromosomique, INSERM 1209, CNRS UMR 5309, CHU Grenoble Alpes, Institut Albert Bonniot, Université Grenoble Alpes, Grenoble, France
| | - A-L Coston
- Service de Gynécologie-Obstétrique et Médecine de la Reproduction, Hôpital Couple Enfant, Université Grenoble Alpes, CHU Grenoble Alpes, Grenoble, France
| | - A Coussement
- Laboratoire de Cytogénétique, Hôpital Cochin, APHP, Paris, France
| | - O Anselem
- Service de Gynécologie et Obstétrique de Port-Royal, Maternité Port-Royal, Groupe Hospitalier Cochin Broca Hôtel-Dieu, APHP, Paris, France
| | - C Missirian
- Département de Génétique Médicale, CHU Timone Enfants, APHM, Marseille, France
| | - F Bretelle
- Service de Gynécologie Obstétrique, CHU Nord, APHM, Marseille, France
| | - F Prieur
- Service de Génétique Clinique Chromosomique Moléculaire, CHU Saint-Etienne, Saint-Etienne, France
| | - C Fanget
- Service d'Obstétrique, CHU Saint-Etienne, Saint-Etienne, France
| | - C Muti
- Génétique Constitutionnelle, Laboratoire de Biologie, Centre Hospitalier de Versailles, Le Chesnay, France
| | - M-C Jacquemot
- Consultation de Diagnostic Prénatal, Service de Gynécologie Obstétrique, Centre Hospitalier de Versailles, Le Chesnay, France
| | - C Beneteau
- Service de Génétique Médicale, CHU Nantes, Nantes, France
| | - C Le Vaillant
- Service de Gynécologie-Obstétrique, CHU de Nantes, Nantes, France
| | - M Vekemans
- Service d'Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, APHP, Paris, France
- Sorbonne Paris Cité, Université Paris Descartes, Paris, France
| | - L J Salomon
- Sorbonne Paris Cité, Université Paris Descartes, Paris, France
- Service d'Obstétrique, Hôpital Necker-Enfants Malades, APHP, Paris, France
| | - F Vialard
- Unité de Cytogénétique, CHI de Poissy St Germain, Poissy, France
- EA7404-GIG, UFR des Sciences de la Santé Simone Veil, UVSQ, Montigny-le-Bretonneux, France
| | - V Malan
- Service d'Histologie-Embryologie-Cytogénétique, Hôpital Necker-Enfants Malades, APHP, Paris, France
- Sorbonne Paris Cité, Université Paris Descartes, Paris, France
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Amiel J, Salomon R, Attié-Bitach T, Touraine R, Steffann J, Pelet A, Nihoul-Fékété C, Vekemans M, Munnich A, Lyonnet S. Génétique moléculaire de la maladie de Hirschsprung : un modèle de neurocristopathie multigénique. ACTA ACUST UNITED AC 2017. [DOI: 10.1051/jbio/2000194030125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Affiliation(s)
- M L L'Hermite
- Human Reproduction Research Unit, Free University of Brussels, Hopital Saint-Pierre, rue Haute 322, B-1000 Brussels, Belgium
| | - M Vekemans
- Human Reproduction Research Unit, Free University of Brussels, Hopital Saint-Pierre, rue Haute 322, B-1000 Brussels, Belgium
| | - P Delvoye
- Human Reproduction Research Unit, Free University of Brussels, Hopital Saint-Pierre, rue Haute 322, B-1000 Brussels, Belgium
| | - J Nokin
- Human Reproduction Research Unit, Free University of Brussels, Hopital Saint-Pierre, rue Haute 322, B-1000 Brussels, Belgium
| | - C Robyn
- Human Reproduction Research Unit, Free University of Brussels, Hopital Saint-Pierre, rue Haute 322, B-1000 Brussels, Belgium
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Alberti A, Salomon LJ, Le Lorc'h M, Couloux A, Bussières L, Goupil S, Malan V, Pelletier E, Hyon C, Vialard F, Rozenberg P, Bouhanna P, Oury JF, Schmitz T, Romana S, Weissenbach J, Vekemans M, Ville Y. Non-invasive prenatal testing for trisomy 21 based on analysis of cell-free fetal DNA circulating in the maternal plasma. Prenat Diagn 2016; 35:471-6. [PMID: 25643828 DOI: 10.1002/pd.4561] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 01/04/2015] [Accepted: 01/14/2015] [Indexed: 12/23/2022]
Abstract
OBJECTIVE By-the-book implementation of non-invasive prenatal test and clinical validation for trisomy 21. STUDY DESIGN Publicly funded prospective study of 225 cases. Women at risk for trisomy 21 > 1/250 based on combined ultrasound and serum markers during first or second trimester were eligible following an informed consent. The technique was established from the available literature and performed on 10 mL of venous blood collected prior to chorionic villus sampling or amniocentesis. Investigators were blinded to the fetal karyotype. Results were expressed in Z-scores of the percentage of each chromosome. RESULTS Among 976 eligible cases, 225 were processed: 8 were used for pretesting phase and 23 to build a reference set. One hundred thirty six euploid cases and 47 with trisomy 21 were then run randomly. Eleven cases yielded no result (4.8%). Z-scores were above 3 (7.58+/-2.41) for chromosome 21 in all 47 trisomies and in none of the euploid cases (0.11+/-1.0). Z-scores were within normal range for the other chromosomes in both groups. Using a cut-off of 3, sensitivity and specificity were of 100% 95% CI [94.1, 100] and 100% 95% CI [98, 100], respectively. CONCLUSION Non-invasive prenatal test for trisomy 21 is a robust strategy that can be translated from seminal publications. Publicly funded studies should refine its indications and cost-effectiveness in prenatal screening and diagnosis. © 2015 John Wiley & Sons, Ltd.
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Hofstra LM, Sauvageot N, Albert J, Alexiev I, Garcia F, Struck D, Van de Vijver DAMC, Åsjö B, Beshkov D, Coughlan S, Descamps D, Griskevicius A, Hamouda O, Horban A, Van Kasteren M, Kolupajeva T, Kostrikis LG, Liitsola K, Linka M, Mor O, Nielsen C, Otelea D, Paraskevis D, Paredes R, Poljak M, Puchhammer-Stöckl E, Sönnerborg A, Staneková D, Stanojevic M, Van Laethem K, Zazzi M, Zidovec Lepej S, Boucher CAB, Schmit JC, Wensing AMJ, Puchhammer-Stockl E, Sarcletti M, Schmied B, Geit M, Balluch G, Vandamme AM, Vercauteren J, Derdelinckx I, Sasse A, Bogaert M, Ceunen H, De Roo A, De Wit S, Echahidi F, Fransen K, Goffard JC, Goubau P, Goudeseune E, Yombi JC, Lacor P, Liesnard C, Moutschen M, Pierard D, Rens R, Schrooten Y, Vaira D, Vandekerckhove LPR, Van den Heuvel A, Van Der Gucht B, Van Ranst M, Van Wijngaerden E, Vandercam B, Vekemans M, Verhofstede C, Clumeck N, Van Laethem K, Beshkov D, Alexiev I, Lepej SZ, Begovac J, Kostrikis L, Demetriades I, Kousiappa I, Demetriou V, Hezka J, Linka M, Maly M, Machala L, Nielsen C, Jørgensen LB, Gerstoft J, Mathiesen L, Pedersen C, Nielsen H, Laursen A, Kvinesdal B, Liitsola K, Ristola M, Suni J, Sutinen J, Descamps D, Assoumou L, Castor G, Grude M, Flandre P, Storto A, Hamouda O, Kücherer C, Berg T, Braun P, Poggensee G, Däumer M, Eberle J, Heiken H, Kaiser R, Knechten H, Korn K, Müller H, Neifer S, Schmidt B, Walter H, Gunsenheimer-Bartmeyer B, Harrer T, Paraskevis D, Hatzakis A, Zavitsanou A, Vassilakis A, Lazanas M, Chini M, Lioni A, Sakka V, Kourkounti S, Paparizos V, Antoniadou A, Papadopoulos A, Poulakou G, Katsarolis I, Protopapas K, Chryssos G, Drimis S, Gargalianos P, Xylomenos G, Lourida G, Psichogiou M, Daikos GL, Sipsas NV, Kontos A, Gamaletsou MN, Koratzanis G, Sambatakou H, Mariolis H, Skoutelis A, Papastamopoulos V, Georgiou O, Panagopoulos P, Maltezos E, Coughlan S, De Gascun C, Byrne C, Duffy M, Bergin C, Reidy D, Farrell G, Lambert J, O'Connor E, Rochford A, Low J, Coakely P, O'Dea S, Hall W, Mor O, Levi I, Chemtob D, Grossman Z, Zazzi M, de Luca A, Balotta C, Riva C, Mussini C, Caramma I, Capetti A, Colombo MC, Rossi C, Prati F, Tramuto F, Vitale F, Ciccozzi M, Angarano G, Rezza G, Kolupajeva T, Vasins O, Griskevicius A, Lipnickiene V, Schmit JC, Struck D, Sauvageot N, Hemmer R, Arendt V, Michaux C, Staub T, Sequin-Devaux C, Wensing AMJ, Boucher CAB, van de Vijver DAMC, van Kessel A, van Bentum PHM, Brinkman K, Connell BJ, van der Ende ME, Hoepelman IM, van Kasteren M, Kuipers M, Langebeek N, Richter C, Santegoets RMWJ, Schrijnders-Gudde L, Schuurman R, van de Ven BJM, Åsjö B, Kran AMB, Ormaasen V, Aavitsland P, Horban A, Stanczak JJ, Stanczak GP, Firlag-Burkacka E, Wiercinska-Drapalo A, Jablonowska E, Maolepsza E, Leszczyszyn-Pynka M, Szata W, Camacho R, Palma C, Borges F, Paixão T, Duque V, Araújo F, Otelea D, Paraschiv S, Tudor AM, Cernat R, Chiriac C, Dumitrescu F, Prisecariu LJ, Stanojevic M, Jevtovic D, Salemovic D, Stanekova D, Habekova M, Chabadová Z, Drobkova T, Bukovinova P, Shunnar A, Truska P, Poljak M, Lunar M, Babic D, Tomazic J, Vidmar L, Vovko T, Karner P, Garcia F, Paredes R, Monge S, Moreno S, Del Amo J, Asensi V, Sirvent JL, de Mendoza C, Delgado R, Gutiérrez F, Berenguer J, Garcia-Bujalance S, Stella N, de Los Santos I, Blanco JR, Dalmau D, Rivero M, Segura F, Elías MJP, Alvarez M, Chueca N, Rodríguez-Martín C, Vidal C, Palomares JC, Viciana I, Viciana P, Cordoba J, Aguilera A, Domingo P, Galindo MJ, Miralles C, Del Pozo MA, Ribera E, Iribarren JA, Ruiz L, de la Torre J, Vidal F, Clotet B, Albert J, Heidarian A, Aperia-Peipke K, Axelsson M, Mild M, Karlsson A, Sönnerborg A, Thalme A, Navér L, Bratt G, Karlsson A, Blaxhult A, Gisslén M, Svennerholm B, Bergbrant I, Björkman P, Säll C, Mellgren Å, Lindholm A, Kuylenstierna N, Montelius R, Azimi F, Johansson B, Carlsson M, Johansson E, Ljungberg B, Ekvall H, Strand A, Mäkitalo S, Öberg S, Holmblad P, Höfer M, Holmberg H, Josefson P, Ryding U. Transmission of HIV Drug Resistance and the Predicted Effect on Current First-line Regimens in Europe. Clin Infect Dis 2015; 62:655-663. [PMID: 26620652 PMCID: PMC4741360 DOI: 10.1093/cid/civ963] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 11/06/2015] [Indexed: 11/13/2022] Open
Abstract
Transmitted human immunodeficiency virus drug resistance in Europe is stable at around 8%. The impact of baseline mutation patterns on susceptibility to antiretroviral drugs should be addressed using clinical guidelines. The impact on baseline susceptibility is largest for nonnucleoside reverse transcriptase inhibitors. Background. Numerous studies have shown that baseline drug resistance patterns may influence the outcome of antiretroviral therapy. Therefore, guidelines recommend drug resistance testing to guide the choice of initial regimen. In addition to optimizing individual patient management, these baseline resistance data enable transmitted drug resistance (TDR) to be surveyed for public health purposes. The SPREAD program systematically collects data to gain insight into TDR occurring in Europe since 2001. Methods. Demographic, clinical, and virological data from 4140 antiretroviral-naive human immunodeficiency virus (HIV)–infected individuals from 26 countries who were newly diagnosed between 2008 and 2010 were analyzed. Evidence of TDR was defined using the WHO list for surveillance of drug resistance mutations. Prevalence of TDR was assessed over time by comparing the results to SPREAD data from 2002 to 2007. Baseline susceptibility to antiretroviral drugs was predicted using the Stanford HIVdb program version 7.0. Results. The overall prevalence of TDR did not change significantly over time and was 8.3% (95% confidence interval, 7.2%–9.5%) in 2008–2010. The most frequent indicators of TDR were nucleoside reverse transcriptase inhibitor (NRTI) mutations (4.5%), followed by nonnucleoside reverse transcriptase inhibitor (NNRTI) mutations (2.9%) and protease inhibitor mutations (2.0%). Baseline mutations were most predictive of reduced susceptibility to initial NNRTI-based regimens: 4.5% and 6.5% of patient isolates were predicted to have resistance to regimens containing efavirenz or rilpivirine, respectively, independent of current NRTI backbones. Conclusions. Although TDR was highest for NRTIs, the impact of baseline drug resistance patterns on susceptibility was largest for NNRTIs. The prevalence of TDR assessed by epidemiological surveys does not clearly indicate to what degree susceptibility to different drug classes is affected.
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Affiliation(s)
- L Marije Hofstra
- Luxembourg Institute of Health, Luxembourg.,Department of Virology, University Medical Center Utrecht, The Netherlands
| | | | - Jan Albert
- Karolinska Institute, Solna.,Karolinska University Hospital, Stockholm, Sweden
| | - Ivailo Alexiev
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | - Federico Garcia
- Complejo Hospitalario Universitario de Granada, Instituto de Investigación IBS Granada; on behalf of Cohorte de Adultos de la Red de Investigación en SIDA, Spain
| | | | | | | | - Danail Beshkov
- National Center of Infectious and Parasitic Diseases, Sofia, Bulgaria
| | | | - Diane Descamps
- AP-HP Groupe hospitalier Bichat-Claude Bernard, IAME INSERM UMR 1137, Université Paris Diderot Sorbonne Paris Cité, Paris, France
| | | | | | | | | | | | | | - Kirsi Liitsola
- Department of Infectious Diseases, National Institute for Health and Welfare, Helsinki, Finland
| | - Marek Linka
- National Reference Laboratory for HIV/AIDS, National Institute of Public Health, Prague, Czech Republic
| | - Orna Mor
- National HIV Reference Laboratory, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | | | - Dan Otelea
- National Institute for Infectious Diseases "Prof. dr. Matei Bals", Bucharest, Romania
| | | | | | - Mario Poljak
- Faculty of Medicine, Slovenian HIV/AIDS Reference Centre, University of Ljubljana, Slovenia
| | | | - Anders Sönnerborg
- Karolinska Institute, Solna.,Karolinska University Hospital, Stockholm, Sweden
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Leroy C, Jacquemont ML, Doray B, Lamblin D, Cormier-Daire V, Philippe A, Nusbaum S, Patrat C, Steffann J, Colleaux L, Vekemans M, Romana S, Turleau C, Malan V. Xq25 duplication: the crucial role of the STAG2
gene in this novel human cohesinopathy. Clin Genet 2015; 89:68-73. [DOI: 10.1111/cge.12567] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 02/02/2015] [Accepted: 02/05/2015] [Indexed: 01/24/2023]
Affiliation(s)
- C. Leroy
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
| | - M.-L. Jacquemont
- Service de Néonatologie; Centre Hospitalier Universitaire de la Réunion; Saint-Pierre France
| | - B. Doray
- Service de Génétique; Centre Hospitalier Universitaire de La Réunion, Hôpital Félix Guyon; Saint-Denis France
| | - D. Lamblin
- Fondation Père Favron; CAMSP; Saint-Louis France
| | - V. Cormier-Daire
- Service de Génétique; Hôpital Necker-Enfants Malades; Paris France
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
| | - A. Philippe
- Service de Génétique; Hôpital Necker-Enfants Malades; Paris France
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
- Institut IMAGINE; INSERM UMR_S1163, Hôpital Necker-Enfants Malades; Paris France
| | - S. Nusbaum
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
| | - C. Patrat
- Laboratoire de Biologie De la Reproduction; Groupe Hospitalier Bichat-Claude Bernard; Paris France
| | - J. Steffann
- Service de Génétique; Hôpital Necker-Enfants Malades; Paris France
| | - L. Colleaux
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
- Institut IMAGINE; INSERM UMR_S1163, Hôpital Necker-Enfants Malades; Paris France
| | - M. Vekemans
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
| | - S. Romana
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
| | - C. Turleau
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
| | - V. Malan
- Service de Cytogénétique; Hôpital Necker-Enfants Malades; Paris France
- Sorbonne Paris Cité; Université Paris Descartes; Paris France
- Institut IMAGINE; INSERM UMR_S1163, Hôpital Necker-Enfants Malades; Paris France
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8
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Rio M, Royer G, Gobin S, de Blois MC, Ozilou C, Bernheim A, Nizon M, Munnich A, Bonnefont JP, Romana S, Vekemans M, Turleau C, Malan V. Monozygotic twins discordant for submicroscopic chromosomal anomalies in 2p25.3 region detected by array CGH. Clin Genet 2012; 84:31-6. [PMID: 23061379 DOI: 10.1111/cge.12036] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/04/2012] [Accepted: 10/05/2012] [Indexed: 02/06/2023]
Abstract
Although discordant phenotypes in monozygotic twins with developmental disorder are not an exception, underlying genetic discordance is rarely reported. Here, we report on the clinical and cytogenetic details of 4-year-old female monozygotic twins with discordant phenotypes. Twin 1 exhibited global developmental delay, overweight and hyperactivity. Twin 2 had an autistic spectrum disorder. Molecular karyotyping in twin 1 identified a 2p25.3 deletion, further confirmed by Fluorescence in situ hybridization (FISH) analysis on leukocytes. Interestingly, array comparative genomic hybridization was normal in twin 2 but FISH analysis using the same probe as twin 1 showed mosaicism with one-third of cells with a 2p25.3 deletion, one-third of cells with a 2p25.3 duplication, and one-third of normal cells. Genotyping with microsatellite markers confirmed the monozygosity of the twins. We propose that the chromosome imbalance may be due to a mitotic non-allelic recombination occurring during blastomeric divisions of a normal zygote. Such event will result in three distinct cell populations, whose proportion in each embryo formed after separation from the zygote may differ, leading to discordant chromosomal anomalies between twins. We also discuss that the MYTL1L and the SNTG2 genes within the reported region could probably relate to the phenotypic discordance of the monozygotic twins.
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Affiliation(s)
- M Rio
- Département de Génétique, Université Paris Descartes, Hôpital Necker-Enfants Malades, AP-HP, Paris, France
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9
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Thauvin-Robinet C, Thomas S, Sinico M, Aral B, Burglen L, Gigot N, Dollfus H, Rossignol S, Raynaud M, Philippe C, Badens C, Touraine R, Gomes C, Franco B, Lopez E, Elkhartoufi N, Faivre L, Munnich A, Boddaert N, Van Maldergem L, Encha-Razavi F, Lyonnet S, Vekemans M, Escudier E, Attié-Bitach T. OFD1 mutations in males: phenotypic spectrum and ciliary basal body docking impairment. Clin Genet 2012; 84:86-90. [PMID: 23036093 DOI: 10.1111/cge.12013] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 08/22/2012] [Accepted: 09/04/2012] [Indexed: 12/30/2022]
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10
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Khatua S, Brown R, Pearlman M, Vats T, Satge D, Stiller C, Rutkowski S, von Bueren AO, Lacour B, Sommelet D, Nishi M, Massimino M, Garre ML, Moreno F, Hasle H, Jakab Z, Greenberg M, von der Weid N, Kuehni C, Zurriaga O, Vicente ML, Peris-Bonet R, Benesch M, Vekemans M, Sullivan S, Rickert C, Fisher PG, Von Behren J, Nelson DO, Reynolds P, Fukuoka K, Yanagisawa T, Suzuki T, Koga T, Wakiya K, Adachi JI, Mishima K, Fujimaki T, Matsutani M, Nishikawa R, Gidding C, Schieving J, Wesseling P, Ligtenberg M, Hoogerbrugge N, Jongmans M, Crosier S, Nicholson SL, Robson K, Jacques T, Wharton S, Bown N, Michalski A, Pizer B, Clifford S, Sanden E, Visse E, Siesjo P, Darabi A, Nousome D, Lupo PJ, Scheurer ME, Nulman I, Barrera M, Maxwell C, Koren G, Gorelyshev S, Matuev K, Lubnin A, Laskov M, Lemeneva N, Mazerkina N, Khuhlaeva E, Muller K, Bruns F, Pietsch T, Rutkowski S, Kortmann RD, Krishnatry R, Shirsat N, Kunder R, Epari S, Gupta T, Kurkure P, Vora T, Arora B, Moiyadi A, Jalali R, Swieszkowska E, Dembowska-Baginska B, Drogosiewicz M, Filipek I, Perek-Polnik M, Grajkowska W, Perek D, Johnston D, Cyr J, Strother D, Lafay-Cousin L, Fryer C, Scheinemann K, Carret AS, Fleming A, Larouche V, Bouffet E, Friedrich C, Gnekow AK, Fleischhack G, Kramm CM, Fruehwald MC, Muller HL, Calaminus G, Kordes U, Faldum A, Pietsch T, Warmuth-Metz M, Kortmann RD, Jung I, Kaatsch P, Rutkowski S, Caretti V, Bugiani M, Boor I, Schellen P, Vandertop WP, Noske DP, Kaspers G, Wurdinger T, Wesseling P, Robinson G, Chingtagumpala M, Adesina A, Dalton J, Santi M, Sievert A, Wright K, Armstrong G, Boue D, Olshefski R, Scott S, Huang A, Cohn R, Gururangan S, Bowers D, Gilbertson R, Gajjar A, Ellison D, Chick E, Donson A, Owens E, Smith AA, Madden JR, Foreman NK, Bakry D, Aronson M, Durno C, Hala R, Farah R, Amayiri N, Alharbi Q, Shamvil A, Ben-Shachar S, Constantini S, Rina D, Ellise J, Keiles S, Pollet A, Qaddoumi I, Gallinger S, Malkin D, Bouffet E, Hawkins C, Tabori U, Trivedi M, Goodden J, Chumas P, Tyagi A, O'kane R, Trivedi M, Goodden J, Chumas P, Tyagi A, O'Kane R, Crimmins D, Picton S, Elliott M. EPIDEMIOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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11
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Lamazou F, Steffann J, Frydman N, Burlet P, Gigarel N, Romana S, Bonnefont JP, Lelorch M, Hesters L, Fanchin R, Kerbrat V, Vekemans M, Munnich A, Frydman R. [Preimplantation diagnosis with HLA typing: birth of the first double hope child in France]. ACTA ACUST UNITED AC 2011; 40:682-6. [PMID: 21944578 DOI: 10.1016/j.jgyn.2011.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 07/19/2011] [Accepted: 08/17/2011] [Indexed: 10/17/2022]
Abstract
Preimplantation genetic diagnosis (PGD) is authorized in France since 1999. After 10 years, technical results are encouraging. With the development of new technologies, our team is able to diagnosis the large majority of chromosome translocations and 75 monogenic diseases. However, PGD remains limited because of the growing augmentation of demands causing an increasing delay for the first procedure of more than 18 months. Since 2006, 19 couples asked for a PGD with HLA typing. In January 2011, 11 couples have already been included in our PGD program. The birth of the first child after PGD with HLA typing offers new perspectives of treatment for these couples.
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Affiliation(s)
- F Lamazou
- Service de gynécologie-obstétrique et médecine de la reproduction, hôpital Antoine-Béclère, AP-HP, 157, rue de la Porte-de-Trivaux, 92141 Clamart, France.
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12
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Arnaud A, Crétolle C, Babarit C, Galmiche L, Munnich A, Lyonnet S, Vekemans M, Etchevers H, Sarnacki S. CL004 - Expression de marqueurs de pluripotence dans des cellules de tératome sacro-coccygien. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70220-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Bessières-Grattagliano B, Foliguet B, Devisme L, Loeuillet L, Marcorelles P, Bonnière M, Laquerrière A, Fallet-Bianco C, Martinovic J, Zrelli S, Leticee N, Cayol V, Etchevers HC, Vekemans M, Attie-Bitach T, Encha-Razavi F. Refining the clinicopathological pattern of cerebral proliferative glomeruloid vasculopathy (Fowler syndrome): report of 16 fetal cases. Eur J Med Genet 2009; 52:386-92. [PMID: 19635601 DOI: 10.1016/j.ejmg.2009.07.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Accepted: 07/20/2009] [Indexed: 11/27/2022]
Abstract
Cerebral proliferative glomeruloid vasculopathy (PGV) is a severe disorder of brain angiogenesis, resulting in abnormally thickened and aberrant perforating vessels, forming glomeruloids with inclusion-bearing endothelial cells. This peculiar vascular malformation was delineated by Fowler in 1972 as a stereotyped lethal fetal phenotype associating hydranencephaly-hydrocephaly with limb deformities, called Fowler syndrome (FS) or "proliferative vasculopathy and hydranencephaly-hydrocephaly" or "encephaloclastic proliferative vasculopathy" (OMIM#225790). In PGV, the disruptive impact of vascular malformation on the developing central nervous system (CNS) is now well admitted. However, molecular mechanisms of abnormal angiogenesis involving the CNS vasculature exclusively remain unknown, as no genes have been localized nor identified to date. We observed the pathognomonic FS vascular malformation in 16 fetuses, born to eight families, four consanguineous and four non-consanguineous. A diffuse form of PGV affecting the entire CNS and resulting in classical FS in 14 cases, can be contrasted to two cases with focal forms, confined to restricted territories of the CNS. Interestingly in PGV, immunohistological response to a marker of pericytes (SMA, Smooth in PGV Muscle Actin), was drastically reduced as compared to a match control. Our studies has expanded the description of FS to additional phenotypes, that could be called Fowler-like syndromes and suggest that the pathogenesis of PGV may be related to abnormal pericyte-dependent remodelling of the CNS vasculature, during CNS angiogenesis. Gene identification will determine the molecular basis of PGV and will help to know whether the Fowler-like phenotypes are due to the same underlying molecular mechanisms.
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Affiliation(s)
- B Bessières-Grattagliano
- Laboratoire d'Anatomo-Foeto-Pathologie, Institut de Puériculture et de Périnatalogie, Paris, France
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14
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Soler G, Nusbaum S, Varet B, Macintyre EA, Vekemans M, Romana SP, Radford-Weiss I. LRRFIP1, a new FGFR1 partner gene associated with 8p11 myeloproliferative syndrome. Leukemia 2009; 23:1359-61. [PMID: 19369959 DOI: 10.1038/leu.2009.79] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Moreau M, Klastersky J, Schwarzbold A, Muanza F, Georgala A, Aoun M, Loizidou A, Barette M, Costantini S, Delmelle M, Dubreucq L, Vekemans M, Ferrant A, Bron D, Paesmans M. A general chemotherapy myelotoxicity score to predict febrile neutropenia in hematological malignancies. Ann Oncol 2009; 20:513-9. [PMID: 19139177 DOI: 10.1093/annonc/mdn655] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Chemotherapy-induced neutropenia is the most common adverse effect of chemotherapy and is often complicated by febrile neutropenia (FN). The objective of this study is to validate a classification of aggressiveness of a chemotherapy regimen and to evaluate its usefulness in a risk prediction model of FN in patients with hematological cancer at the beginning of a chemotherapy cycle. PATIENTS AND METHODS Two hundred and sixty-six patients were prospectively enrolled and followed during 1053 cycles. Relevant patient informations were collected at the beginning of the first cycle and the number of days of FN were counted in the follow-up [dichotomized (no FN versus >or= 1 day of FN)]. RESULTS Aggressive chemotherapy regimen is the major predictor of FN [odds ratio 5.2 (3.2-8.4)]. The other independent predictors are the underlying disease, an involvement of bone marrow, body surface <or= 2 m(2), a baseline monocyte count <150/microl and the interaction between the first cycle in the same treatment line and a baseline hemoglobin dosage. A rule of prediction of FN was computed with these characteristics: sensitivity 78.6%, specificity 62.3%, positive predictive value 42.7% and negative predictive value 89.1%. CONCLUSION Further studies are needed to validate this score.
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Affiliation(s)
- M Moreau
- Datacentre, Institut Jules Bordet, Brussels, Belgium.
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16
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Malan V, Raoul O, Firth HV, Royer G, Turleau C, Bernheim A, Willatt L, Munnich A, Vekemans M, Lyonnet S, Cormier-Daire V, Colleaux L. 19q13.11 deletion syndrome: a novel clinically recognisable genetic condition identified by array comparative genomic hybridisation. J Med Genet 2009; 46:635-40. [PMID: 19126570 DOI: 10.1136/jmg.2008.062034] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Deletions of chromosome 19 have rarely been reported, with the exception of some patients with deletion 19q13.2 and Blackfan-Diamond syndrome due to haploinsufficiency of the RPS19 gene. Such a paucity of patients might be due to the difficulty in detecting a small rearrangement on this chromosome that lacks a distinct banding pattern. Array comparative genomic hybridisation (CGH) has become a powerful tool for the detection of microdeletions and microduplications at high resolution in patients with syndromic mental retardation. METHODS AND RESULTS Using array CGH, this study identified three interstitial overlapping 19q13.11 deletions, defining a minimal critical region of 2.87 Mb, associated with a clinically recognisable syndrome. The three patients share several major features including: pre- and postnatal growth retardation with slender habitus, severe postnatal feeding difficulties, microcephaly, hypospadias, signs of ectodermal dysplasia, and cutis aplasia over the posterior occiput. Interestingly, these clinical features have also been described in a previously reported patient with a 19q12q13.1 deletion. No recurrent breakpoints were identified in our patients, suggesting that no-allelic homologous recombination mechanism is not involved in these rearrangements. CONCLUSIONS Based on these results, the authors suggest that this chromosomal abnormality may represent a novel clinically recognisable microdeletion syndrome caused by haploinsufficiency of dosage sensitive genes in the 19q13.11 region.
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17
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Quenum-Miraillet G, Malan V, Martinovic J, Encha-Razavi F, Aral B, Texier I, Bonnefont JP, Vekemans M, Morichon-Delvallez N. Prenatal diagnosis of a ring chromosome 14 in a fetus with a severe skeletal dysplasia. Prenat Diagn 2008; 28:69-71. [PMID: 18186139 DOI: 10.1002/pd.1911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Geneviève Quenum-Miraillet
- Service de Cytogénétique et d'Embryologie, Hôpital Necker-Enfants Malades, AP-HP, Paris, Université Paris Descartes, Paris V, France
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18
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Bottieau E, Florence E, De Boer M, Vlieghe E, Demeester R, Vekemans M, Moerman F, Lynen L, Francque S, Michielsen P. Treatment outcome of chronic hepatitis C in HIV-infected patients at the Institute of Tropical Medicine, Antwerp, Belgium, from 2000 to 2008. J Int AIDS Soc 2008. [DOI: 10.1186/1758-2652-11-s1-p283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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19
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Florence E, Bottieau E, Boer M, Vekemans M, Francque S, Vlieghe E, Soentjens P, Colebunders R. Acute hepatitis C infection in a cohort of HIV-infected patients in Belgium. J Int AIDS Soc 2008. [DOI: 10.1186/1758-2652-11-s1-p270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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20
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Malan V, De Blois MC, Prieur M, Perrier-Waill MC, Huguet-Nedjar C, Gegas L, Turleau C, Vekemans M, Munnich A, Romana SP. Sotos syndrome caused by a paracentric inversion disrupting the NSD1 gene. Clin Genet 2007; 73:89-91. [PMID: 18042263 DOI: 10.1111/j.1399-0004.2007.00916.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Soler G, Radford-Weiss I, Ben-Abdelali R, Mahlaoui N, Ponceau JF, Macintyre EA, Vekemans M, Bernard OA, Romana SP. Fusion of ZMIZ1 to ABL1 in a B-cell acute lymphoblastic leukaemia with a t(9;10)(q34;q22.3) translocation. Leukemia 2007; 22:1278-80. [PMID: 18007576 DOI: 10.1038/sj.leu.2405033] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Vekemans M, Robinson J, Georgala A, Heymans C, Muanza F, Paesmans M, Klastersky J, Barette M, Meuleman N, Huet F, Calandra T, Costantini S, Ferrant A, Mathissen F, Axelsen M, Marchetti O, Aoun M. Low Mannose-Binding Lectin Concentration Is Associated with Severe Infection in Patients with Hematological Cancer Who Are Undergoing Chemotherapy. Clin Infect Dis 2007; 44:1593-601. [PMID: 17516403 DOI: 10.1086/518171] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2006] [Accepted: 03/05/2007] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Mannose-binding lectin (MBL) is a serum lectin involved in innate immune response. Low serum MBL concentration may constitute a risk factor for infection in patients receiving myelosuppressive chemotherapy. METHODS We conducted a prospective, observational study that assessed MBL concentration as a risk factor for infection in patients with hematological malignancy who were hospitalized to undergo at least 1 chemotherapy cycle. MBL deficiency was defined using an algorithm that considered the serum MBL concentration and the MBL genotype. The primary end point was the ratio of duration of febrile neutropenia to the duration of neutropenia. Secondary end points included the incidence of severe infection (e.g., sepsis, pneumonia, bacteremia, and invasive fungal infection). Logistic regression analysis was conducted, and Fisher's exact test was used to analyze binary outcomes, and Kaplan-Meier estimates and log rank tests were used for time-to-event variables. RESULTS We analyzed 255 patients who received 569 cycles of chemotherapy. The median duration of neutropenia per cycle was 7 days (interquartile range, 0-13 days). Sixty-two patients (24%) were found to have MBL deficiency. Febrile neutropenia occurred at least once in 200 patients. No difference in the primary outcome was seen. The incidence of severe infection was higher among MBL-deficient patients than among non-MBL-deficient patients (1.96 vs. 1.34 cases per 100 days for analysis of all patients [P=.008] and 1.85 vs. 0.94 cases per 100 days excluding patients with acute leukemia [P<.001]). CONCLUSIONS MBL deficiency does not predispose adults with hematological cancer to more-frequent or more-prolonged febrile episodes during myelosuppressive chemotherapy, but MBL-deficient patients have a greater number of severe infections and experience their first severe infection earlier, compared with nondeficient patients.
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Affiliation(s)
- M Vekemans
- Infectious Diseases Department, Institut Jules Bordet, Brussels, Belgium
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Andrieux J, Villenet C, Quief S, Lignon S, Geffroy S, Roumier C, de Leersnyder H, de Blois MC, Manouvrier S, Delobel B, Benzacken B, Bitoun P, Attie-Bitach T, Thomas S, Lyonnet S, Vekemans M, Kerckaert JP. Genotype phenotype correlation of 30 patients with Smith-Magenis syndrome (SMS) using comparative genome hybridisation array: cleft palate in SMS is associated with larger deletions. J Med Genet 2007; 44:537-40. [PMID: 17468296 PMCID: PMC2597929 DOI: 10.1136/jmg.2006.048736] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Smith-Magenis syndrome (SMS) is rare (prevalence 1 in 25 000) and is associated with psychomotor delay, a particular behavioural pattern and congenital anomalies. SMS is often due to a chromosomal deletion of <4 Mb at the 17p11.2 locus, leading to haploinsufficiency of numerous genes. Mutations of one of these gemes, RAI1, seems to be responsible for the main features found with heterozygous 17p11.2 deletions. METHODS We studied DNA from 30 patients with SMS using a 300 bp amplimers comparative genome hybridisation array encompassing 75 loci from a 22 Mb section from the short arm of chromosome 17. RESULTS Three patients had large deletions (10%). Genotype-phenotype correlation showed that two of them had cleft palate, which was not found in any of the other patients with SMS (p<0.007, Fisher's exact test). The smallest extra-deleted region associated with cleft palate in SMS is 1.4 Mb, contains <16 genes and is located at 17p11.2-17p12. Gene expression array data showed that the ubiquitin B precursor (UBB) is significantly expressed in the first branchial arch in the fourth and fifth weeks of human development. CONCLUSION These data support UBB as a good candidate gene for isolated cleft palate.
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Malan V, Gesny R, Morichon-Delvallez N, Aubry MC, Benachi A, Sanlaville D, Turleau C, Bonnefont JP, Fekete-Nihoul C, Vekemans M. Prenatal diagnosis and normal outcome of a 46,XX/46,XY chimera: A Case Report. Hum Reprod 2007; 22:1037-41. [PMID: 17272360 DOI: 10.1093/humrep/del480] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The phenotypic spectrum of 46,XX/46,XY chimeric patients is variable. It ranges from normal male or female genitalia to different degrees of ambiguous genitalia. Chimerism results from the amalgamation of two different zygotes in a single embryo, whereas mosaicism results from a mitotic error in a single zygote. Several other mechanisms resulting in a chimera have been discussed in the literature. Here, we report on a new case of chimerism (46,XX/46,XY) diagnosed at 17 weeks' gestation on amniocentesis performed because of advanced maternal age. Ultrasound examination revealed normal female external genitalia, and a healthy baby girl was delivered at term. We used polymorphic markers spanning the X chromosome and several autosomes in order to identify the genetic mechanism involved. Mosaicism was excluded because of the presence of 3 alleles at 11 autosomal and 4 X chromosome loci. On autosomes, the origin of this third allele was maternal for two pericentromeric markers (located on 2p11.2 band and 8p11.2 band), paternal for six markers and paternal or maternal for the other three markers. On the X chromosome, the origin of the third allele was maternal for all four markers. Thus, two different paternal and maternal haploid sets were observed. These results are compatible with a tetragametic chimera.
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Affiliation(s)
- Valérie Malan
- Service de Cytogénétique, University René Descartes-Paris 5, Paris, France.
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Abstract
The finding of a mixture of 46,XX and 46,XY cells in an individual has been rarely reported in literature. It usually results in individuals with ambiguous genitalia. Approximately 10% of true human hermaphrodites show this type of karyotype. However, the underlying mechanisms are poorly understood. It may be the result of mosaicism or chimerism. By definition, a chimera is produced by the fusion of two different zygotes in a single embryo, while a mosaic contains genetically different cells issued from a single zygote. Several mechanisms are involved in the production of chimera. Stricto sensu, chimerism occurs from the post-zygotic fusion of two distinct embryos leading to a tetragametic chimera. In addition, there are other entities, which are also referred to as chimera: parthenogenetic chimera and chimera resulting from fertilization of the second polar body. Furthermore, a particular type of chimera called 'androgenetic chimera' recently described in fetuses with placental mesenchymal dysplasia and in rare patients with Beckwith-Wiedemann syndrome is discussed. Strategies to study mechanisms leading to the production of chimera and mosaics are also proposed.
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Affiliation(s)
- V Malan
- Service de Cytogénétique, Hôpital Necker - Enfants Malades, APHP, Paris, René Descartes-Paris 5 University, Paris, France.
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Romana SP, Radford-Weiss I, Ben Abdelali R, Schluth C, Petit A, Dastugue N, Talmant P, Bilhou-Nabera C, Mugneret F, Lafage-Pochitaloff M, Mozziconacci MJ, Andrieu J, Lai JL, Terre C, Rack K, Cornillet-Lefebvre P, Luquet I, Nadal N, Nguyen-Khac F, Perot C, Van den Akker J, Fert-Ferrer S, Cabrol C, Charrin C, Tigaud I, Poirel H, Vekemans M, Bernard OA, Berger R. NUP98 rearrangements in hematopoietic malignancies: a study of the Groupe Francophone de Cytogénétique Hématologique. Leukemia 2006; 20:696-706. [PMID: 16467868 DOI: 10.1038/sj.leu.2404130] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The NUP98 gene is fused with 19 different partner genes in various human hematopoietic malignancies. In order to gain additional clinico-hematological data and to identify new partners of NUP98, the Groupe Francophone de Cytogénétique Hématologique (GFCH) collected cases of hematological malignancies where a 11p15 rearrangement was detected. Fluorescence in situ hybridization (FISH) analysis showed that 35% of these patients (23/66) carried a rearrangement of the NUP98 locus. Genes of the HOXA cluster and the nuclear-receptor set domain (NSD) genes were frequently fused to NUP98, mainly in de novo myeloid malignancies whereas the DDX10 and TOP1 genes were equally rearranged in de novo and in therapy-related myeloid proliferations. Involvement of ADD3 and C6ORF80 genes were detected, respectively, in myeloid disorders and in T-cell acute lymphoblastic leukemia (T-ALL), whereas the RAP1GDS1 gene was fused to NUP98 in T-ALL. Three new chromosomal breakpoints: 3q22.1, 7p15 (in a localization distinct from the HOXA locus) and Xq28 were detected in rearrangements with the NUP98 gene locus. The present study as well as a review of the 73 cases previously reported in the literature allowed us to delineate some chromosomal, clinical and molecular features of patients carrying a NUP98 gene rearrangements.
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Affiliation(s)
- S P Romana
- Service de cytogénétique, Centre Hospitalier Universitaire (CHU) Necker-Enfants Malades, Paris, France.
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Satgé D, Honoré L, Sasco AJ, Vekemans M, Chompret A, Réthoré MO. An ovarian dysgerminoma in Down syndrome. Hypothesis about the association. Int J Gynecol Cancer 2006; 16 Suppl 1:375-9. [PMID: 16515627 DOI: 10.1111/j.1525-1438.2006.00211.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
An 11-year-old girl with Down syndrome (DS) was operated for a stage I right ovary dysgerminoma. She is in good health 33 years later. Some data in the literature suggest that ovarian cancers could be slightly overrepresented in DS. Despite the rarity of ovarian dysgerminoma, our case is the fifth reported in DS. This case is the second one associated with a family history suggesting the possibility of a familial predisposition to cancer. A hypothesis explaining the development of dysgerminoma in DS is proposed.
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Affiliation(s)
- D Satgé
- Laboratory of Pathology, Centre Hospitalier, Tulle Cedex, France.
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29
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Jacquemont ML, Sanlaville D, Redon R, Raoul O, Cormier-Daire V, Lyonnet S, Amiel J, Le Merrer M, Heron D, de Blois MC, Prieur M, Vekemans M, Carter NP, Munnich A, Colleaux L, Philippe A. Array-based comparative genomic hybridisation identifies high frequency of cryptic chromosomal rearrangements in patients with syndromic autism spectrum disorders. J Med Genet 2006; 43:843-9. [PMID: 16840569 PMCID: PMC2563185 DOI: 10.1136/jmg.2006.043166] [Citation(s) in RCA: 214] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Autism spectrum disorders (ASD) refer to a broader group of neurobiological conditions, pervasive developmental disorders. They are characterised by a symptomatic triad associated with qualitative changes in social interactions, defect in communication abilities, and repetitive and stereotyped interests and activities. ASD is prevalent in 1 to 3 per 1000 people. Despite several arguments for a strong genetic contribution, the molecular basis of a most cases remains unexplained. About 5% of patients with autism have a chromosome abnormality visible with cytogenetic methods. The most frequent are 15q11-q13 duplication, 2q37 and 22q13.3 deletions. Many other chromosomal imbalances have been described. However, most of them remain undetectable using routine karyotype analysis, thus impeding diagnosis and genetic counselling. METHODS AND RESULTS 29 patients presenting with syndromic ASD were investigated using a DNA microarray constructed from large insert clones spaced at approximately 1 Mb intervals across the genome. Eight clinically relevant rearrangements were identified in 8 (27.5%) patients: six deletions and two duplications. Altered segments ranged in size from 1.4 to 16 Mb (2-19 clones). No recurrent abnormality was identified. CONCLUSION These results clearly show that array comparative genomic hybridisation should be considered to be an essential aspect of the genetic analysis of patients with syndromic ASD. Moreover, besides their importance for diagnosis and genetic counselling, they may allow the delineation of new contiguous gene syndromes associated with ASD. Finally, the detailed molecular analysis of the rearranged regions may pave the way for the identification of new ASD genes.
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Affiliation(s)
- M-L Jacquemont
- INSERM U781, Hôpital Necker-Enfants Malades, 149 rue de Sèvres, 75015 Paris, France
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30
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Oey NA, Ruiter JPN, Ijlst L, Attie-Bitach T, Vekemans M, Wanders RJA, Wijburg FA. Acyl-CoA dehydrogenase 9 (ACAD 9) is the long-chain acyl-CoA dehydrogenase in human embryonic and fetal brain. Biochem Biophys Res Commun 2006; 346:33-7. [PMID: 16750164 DOI: 10.1016/j.bbrc.2006.05.088] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2005] [Accepted: 05/08/2006] [Indexed: 11/20/2022]
Abstract
We recently reported the expression and activity of several fatty acid oxidation enzymes in human embryonic and fetal tissues including brain and spinal cord. Liver and heart showed expression of both very long-chain acyl-CoA dehydrogenase (VLCAD) and long-chain 3-hydroxyacyl-CoA dehydrogenase (LCHAD) mRNA. However, while mRNA expression of LCHAD could be clearly detected in the retina and spinal cord, expression of VLCAD mRNA was low to undetectable in these tissues. Nevertheless, abundant acyl-CoA dehydrogenase (ACAD) activity was detected with palmitoyl-CoA as substrate in fetal central nervous tissue. These conflicting data suggested the presence of a different long-chain ACAD in human embryonic and fetal brain. In this study, using in situ hybridization as well as enzymatic studies, we identified acyl-CoA dehydrogenase 9 (ACAD 9) as the long-chain ACAD in human embryonic and fetal central nervous tissue. Until now, no clinical signs and symptoms of central nervous system involvement have been reported in VLCAD deficiency. A novel long-chain FAO defect, i.e., ACAD 9 deficiency with only central nervous system involvement, could, if not lethal during intra uterine development, easily escape proper diagnosis, since probably no classical signs and symptoms of FAO deficiency will be observed. Screening for ACAD 9 deficiency in patients with undefined neurological symptoms and/or impairment in neurological development of unknown origin is necessary to establish if ACAD 9 deficiency exists as a separate disease entity.
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Affiliation(s)
- N A Oey
- Department of Paediatrics, Laboratory for Genetic Metabolic Diseases, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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31
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Feyereisen E, Romana S, Kerbrat V, Steffann J, Gigarel N, Lelorc'h M, Burlet P, Ray P, Hamamah S, Chevalier N, Fanchin R, Foix-L'hélias L, Tachdjian G, Munnich A, Frydman R, Vekemans M, Frydman N. Indications et résultats du diagnostic pré-implantatoire (DPI). ACTA ACUST UNITED AC 2006; 35:356-72. [PMID: 16940905 DOI: 10.1016/s0368-2315(06)76408-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To report the results of preimplantation genetic diagnosis (PGD) cycles performed in our unit from 2000 to 2004. Materials and methods. One hundred and seventy-one couples were enrolled in the PGD program over this period. The collected oocytes were inseminated by intracytoplasmic sperm injection (ICSI). The resulting embryos were biopsied on the third day of development and the genetic analysis was performed on the same day. Embryo transfers were carried out on the fourth day. RESULTS The 416 stimulation cycles started yielded 280 oocyte pick-ups, 3506 oocytes retrieved, of which 2966 were suitable for ICSI. Among the 1982 embryos obtained, 1337 embryos were biopsied and genetic diagnosis was performed for 1083 (81%) of them. 381 embryos were transferred during the course of 189 transfer procedures. There were 51 clinical and 46 ongoing (35 single, 11 twin) pregnancies. In addition, 25 frozen embryo replacement cycles were initiated, leading to 6 embryo transfers and 1 ongoing pregnancy. A total of 58 unaffected children were born. CONCLUSION PGD has gained a place among the choices offered to couples at risk of transmission of a serious and incurable genetic disease. It might be a realistic alternative to prenatal diagnosis for patients carrier of chromosomal rearrangements, single gene defects, X-linked disesases or mitochondrial DNA disorders.
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Affiliation(s)
- E Feyereisen
- Service de Gynécologie-Obstétrique et de Médecine de la Reproduction, Hôpital Antoine-Béclère, 157, rue de la Porte-de-Trivaux, 92141 Clamart Cedex
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Chaabouni M, Martinovic J, Sanlaville D, Attié-Bittach T, Caillat S, Turleau C, Vekemans M, Morichon N. Prenatal diagnosis and molecular characterization of an interstitial 1q24.2q25.2 deletion. Eur J Med Genet 2006; 49:487-93. [PMID: 17142120 DOI: 10.1016/j.ejmg.2006.03.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2005] [Accepted: 03/29/2006] [Indexed: 11/24/2022]
Abstract
We report on the observation of an interstitial deletion of the long arm of chromosome 1 diagnosed prenatally in a 28 weeks gestation fetus by standard karyotype. Amniocentesis was performed because of an increased Down syndrome maternal serum screening and ultrasonographic abnormalities. Fetus autopsy showed an intrauterine growth retardation, dysmorphic features and limbs abnormalities. Using fluorescent in situ hybridization technique (FISH), we characterized the deletion boundaries corresponding to the bacterial artificial chromosomes (BAC) RP11-193J5 and RP11-162L13. Molecular studies identified the deletion of paternal origin. Therefore the karyotype was interpreted as 46,XY,del(1)(q24.2q25.2). This is the smallest deletion of the long arm of chromosome 1 reported prenatally and characterized at the molecular level. Its phenotype is compared to other similar cases described in the literature.
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Affiliation(s)
- M Chaabouni
- Service de Génétique, Hôpital Charles-Nicolle, boulevard 9 avril 1938, 1006 Tunis, Tunisia.
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Toussaint E, Bahel-Ball E, Vekemans M, Georgala A, Al-Hakak L, Paesmans M, Aoun M. Causes of fever in cancer patients (prospective study over 477 episodes). Support Care Cancer 2006; 14:763-9. [PMID: 16528534 DOI: 10.1007/s00520-005-0898-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2004] [Accepted: 09/21/2005] [Indexed: 10/24/2022]
Abstract
GOALS OF WORK The aim of this study was to determine the causes of fever among cancer patients. METHODS All febrile cancer patients were followed up prospectively. Clinical, microbiological and radiological documentations were performed. Aetiologies of fever, type of tumour, site of infection, type of microorganism and outcome were assessed and compared between neutropenics and non-neutropenics. RESULTS Four hundred and seventy-seven episodes were evaluated. Infection, non-infectious causes and fever of unknown origin represented 67, 23 and 10%, respectively. The respiratory tract is the most frequently involved site in infection (29%), and in microbiologically documented infections, Gram-negative bacilli were predominant. The tumour itself (27%) or an invasive procedure (17%) were the main causes of non-infectious febrile episodes. Mortality from infection was higher among non-neutropenic (11.1%) than neutropenic patients (4.3%). CONCLUSION Fever in cancer patients remains a challenge, and the differentiation between infectious and non-infectious causes at onset of fever is very difficult. Despite all the prophylactic measures, infection is still the principal cause. However, the infection-related mortality is low either in neutropenic or non-neutropenic patients.
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Affiliation(s)
- E Toussaint
- Laboratoire de Microbiologie et Département des Maladies Infectieuses, Institut Jules Bordet, rue Héger-Bordet 1, 1000 Bruxelles, Belgium.
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Park JW, Cai J, McIntosh I, Jabs EW, Fallin MD, Ingersoll R, Hetmanski JB, Vekemans M, Attie-Bitach T, Lovett M, Scott AF, Beaty TH. High throughput SNP and expression analyses of candidate genes for non-syndromic oral clefts. J Med Genet 2006; 43:598-608. [PMID: 16415175 PMCID: PMC2564555 DOI: 10.1136/jmg.2005.040162] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Recent work suggests that multiple genes and several environmental risk factors influence risk for non-syndromic oral clefts, one of the most common birth defects in humans. Advances in high-throughput genotyping technology now make it possible to test multiple markers in many candidate genes simultaneously. METHODS We present findings from family based association tests of single nucleotide polymorphism (SNP) markers in 64 candidate genes genotyped using the BeadArray approach in 58 case-parent trios from Maryland (USA) to illustrate how multiple markers in multiple genes can be analysed. To assess whether these genes were expressed in human craniofacial structures relevant to palate and lip development, we also analysed data from the Craniofacial and Oral Gene Expression Network (COGENE) consortium, and searched public databases for expression profiles of these genes. RESULTS Thirteen candidate genes showed significant evidence of linkage in the presence of disequilibrium, and ten of these were found to be expressed in relevant embryonic tissues: SP100, MLPH, HDAC4, LEF1, C6orf105, CD44, ALX4, ZNF202, CRHR1, and MAPT. Three other genes showing statistical evidence (ADH1C, SCN3B, and IMP5) were not expressed in the embryonic tissues examined here. CONCLUSIONS This approach demonstrates how statistical evidence on large numbers of SNP markers typed in case-parent trios can be combined with expression data to identify candidate genes for complex disorders. Many of the genes reported here have not been previously studied as candidates for oral clefts and warrant further investigation.
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Affiliation(s)
- J W Park
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD 21205, USA
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35
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Sobrier ML, Attié-Bitach T, Netchine I, Encha-Razavi F, Vekemans M, Amselem S. Pathophysiology of syndromic combined pituitary hormone deficiency due to a LHX3 defect in light of LHX3 and LHX4 expression during early human development. Gene Expr Patterns 2006; 5:279-84. [PMID: 15567726 DOI: 10.1016/j.modgep.2004.07.003] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2004] [Revised: 07/07/2004] [Accepted: 07/07/2004] [Indexed: 12/13/2022]
Abstract
The pathophysiology of combined pituitary hormone deficiency (CPHD) is just beginning to be elucidated, with mutations in genes encoding transcription factors expressed at different stages of pituitary development. Among them, the two closely related genes, LHX3 and LHX4, are believed to share redundant biological properties. The patients with a LHX3 mutation display a CPHD phenotype, associated with a rigid cervical spine. This latter feature, not reported in Lhx3-/- and Lhx4-/- mice nor in patients with a LHX4 defect, prompted us to study the molecular consequences of a previously identified LHX3 23-bp deletion and to determine the LHX3 and LHX4 expression patterns during early human development. This deletion, which results in the skipping of one coding exon, would lead to a protein with no transcriptional capability. Using in situ hybridization, we show that LHX3 and LHX4 are expressed in the developing human pituitary and along the rostro-caudal length of the spinal cord; here, both transcripts are detected in the ventral part giving rise to motorneurons and interneurons. However, whereas LHX3 is expressed at all stages studied, LHX4 expression is transient, and, at 6 weeks of development, is stronger at the caudal than at the cervical level.
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Affiliation(s)
- M-L Sobrier
- Génétique Moléculaire et Physiopathologie, INSERM U468, Hôpital Henri Mondor, Créteil 94010, France
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36
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Soentjens P, Ostyn B, Van Outryve S, Ysebaert D, Vekemans M, Colebunders R. Portal vein thrombosis in a patient with HIV treated with a protease inhibitor-containing regimen. Acta Clin Belg 2006; 61:24-9. [PMID: 16673613 DOI: 10.1179/acb.2006.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
We report a case of an HIV seropositive female patient treated with a protease inhibitor-containing regimen who developed recurrent severe life-threathening episodes of haematemesis over time, caused by ruptured oesophageal varices as a consequence of a portal vein thrombosis. Coagulation tests revealed a protein S deficiency, an elevated homocysteinemia and a constitutional elevated plasma factor VIII coagulant activity. These coagulopathies and the HIV infection are independent risk factors for developing venous thromboembolic events. The protease inhibitor treatment may have played a role in increasing the thromboembolic risk. The recurrent bleedings only stopped after invasive surgery. The invasive splenorenal shunt operation was in this case a life-saving procedure.
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Affiliation(s)
- P Soentjens
- Department of Internal Medicine, University Hospital Gasthuisberg, Leuven, Belgium
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37
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Satgé D, Honoré L, Sasco AJ, Vekemans M, Chompret A, RÉTHORÉ MO. An ovarian dysgerminoma in Down syndrome. Hypothesis about the association. Int J Gynecol Cancer 2006. [DOI: 10.1136/ijgc-00009577-200602001-00068] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
An 11-year-old girl with Down syndrome (DS) was operated for a stage I right ovary dysgerminoma. She is in good health 33 years later. Some data in the literature suggest that ovarian cancers could be slightly overrepresented in DS. Despite the rarity of ovarian dysgerminoma, our case is the fifth reported in DS. This case is the second one associated with a family history suggesting the possibility of a familial predisposition to cancer. A hypothesis explaining the development of dysgerminoma in DS is proposed.
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38
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Borck G, Redon R, Sanlaville D, Rio M, Prieur M, Lyonnet S, Vekemans M, Carter NP, Munnich A, Colleaux L, Cormier-Daire V. NIPBL mutations and genetic heterogeneity in Cornelia de Lange syndrome. J Med Genet 2005; 41:e128. [PMID: 15591270 PMCID: PMC1735640 DOI: 10.1136/jmg.2004.026666] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- G Borck
- INSERM U393 and Département de Génétique Médicale, Hôpital Necker - Enfants Malades, Paris, France
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39
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Feyereisen E, Amar A, Kerbrat V, Steffann J, Munnich A, Vekemans M, Frydman R, Frydman N. Myotonic dystrophy: does it affect ovarian follicular status and responsiveness to controlled ovarian stimulation? Hum Reprod 2005; 21:175-82. [PMID: 16199430 DOI: 10.1093/humrep/dei310] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Myotonic dystrophy (MD) is characterized by myotonia, multisystemic lesions and hypogonadism. In women, the relationship between MD and infertility remains controversial. This study investigated the ovarian status and response to controlled ovarian stimulation (COS) in MD women entering our preimplantation genetic diagnosis programme. METHODS We elected to compare MD patients with X-linked disorders (XLD) carriers, given that XLD have not been shown to affect ovarian status. On the one hand, we analysed all the cycles performed and, on the other hand, we conducted a subanalysis based on only first cycles. RESULTS MD and XLD groups were similar with regard to women's ages, day 3 parameters, number of oocytes retrieved, embryos obtained and prevalence of top quality embryos. The day of HCG was significantly delayed and the prevalence of poor quality embryos was higher in the MD group. The subanalysis on first cycles only also showed significantly fewer mature follicles on the day of HCG in MD population. Implantation and pregnancy rates were similar in both groups; however, no pregnancy occurred at the first cycle in MD (0 out of 4), whereas 77% of pregnancies (10/13) occurred at the first attempt in XLD carriers. CONCLUSIONS These results indicate that the responsiveness to COS was moderately hindered in MD women as compared to controls. Reassuring data about implantation and pregnancy rates support the feasibility of PGD in selected mildly affected MD women.
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Affiliation(s)
- E Feyereisen
- Service de Gynécologie-Obstétrique et de Médecine de la Reproduction, Hôpital Antoine Béclère, Clamart, France.
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40
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Sanlaville D, Etchevers HC, Gonzales M, Martinovic J, Clément-Ziza M, Delezoide AL, Aubry MC, Pelet A, Chemouny S, Cruaud C, Audollent S, Esculpavit C, Goudefroye G, Ozilou C, Fredouille C, Joye N, Morichon-Delvallez N, Dumez Y, Weissenbach J, Munnich A, Amiel J, Encha-Razavi F, Lyonnet S, Vekemans M, Attié-Bitach T. Phenotypic spectrum of CHARGE syndrome in fetuses with CHD7 truncating mutations correlates with expression during human development. J Med Genet 2005; 43:211-217. [PMID: 16169932 PMCID: PMC2563257 DOI: 10.1136/jmg.2005.036160] [Citation(s) in RCA: 177] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND The acronym CHARGE refers to a non-random cluster of malformations including coloboma, heart malformation, choanal atresia, retardation of growth and/or development, genital anomalies, and ear anomalies. This set of multiple congenital anomalies is frequent, despite rare patients with normal intelligence, and prognosis remains poor. Recently, CHD7 gene mutations have been identified in CHARGE patients; however, the function of CHD7 during development remains unknown. METHODS We studied a series of 10 antenatal cases in whom the diagnosis of CHARGE syndrome was suspected, considering that a careful pathological description would shed light on the CHD7 function during development. CHD7 sequence analysis and in situ hybridisation were employed. RESULTS The diagnosis of CHARGE syndrome was confirmed in all 10 fetuses by the identification of a CHD7 heterozygous truncating mutation. Interestingly, arhinencephaly and semi-circular canal agenesis were two constant features which are not included in formal diagnostic criteria so far. In situ hybridisation analysis of the CHD7 gene during early human development emphasised the role of CHD7 in the development of the central nervous system, internal ear, and neural crest of pharyngeal arches, and more generally showed a good correlation between specific CHD7 expression pattern and the developmental anomalies observed in CHARGE syndrome. CONCLUSIONS These results allowed us to further refine the phenotypic spectrum of developmental anomalies resulting from CHD7 dysfunction.
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Affiliation(s)
- D Sanlaville
- Département de Génétique et Unité INSERM U-393, Hôpital Necker-Enfants Malades, 149, rue de Sèvres, 75743 Paris Cedex 15, France
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Sanlaville D, Lapierre JM, Coquin A, Turleau C, Vermeesch J, Colleaux L, Borck G, Vekemans M, Aurias A, Romana SP. [Microarray CGH: principle and use for constitutional disorders]. Arch Pediatr 2005; 12:1515-20. [PMID: 16153813 DOI: 10.1016/j.arcped.2005.07.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2005] [Accepted: 07/12/2005] [Indexed: 10/25/2022]
Abstract
Chips technology has allowed to miniaturize process making possible to realize in one step and using the same device a lot of chemical reactions. The application of this technology to molecular cytogenetics resulted in the development of comparative genomic hybridization (CGH) on microarrays technique. Using this technique it is possible to detect very small genetic imbalances anywhere in the genome. Its usefulness has been well documented in cancer and more recently in constitutional disorders. In particular it has been used to detect interstitial and subtelomeric submicroscopic imbalances, to characterize their size at the molecular level or to define the breakpoints of translocation. The challenge today is to transfer this technology in laboratory medicine. Nevertheless this technology remains expensive and the existence of numerous sequence polymorphisms makes its interpretation difficult. Finally its is unlikely that it will make karyotyping obsolete as it does not allow to detect balanced rearrangements which after meiotic segregation might result in genome imbalance in the progeny.
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Affiliation(s)
- D Sanlaville
- Service de cytogénétique, hôpital Necker-Enfants-malades, Assistance-publique-hôpitaux-de-Paris, 149, rue de Sèvres, 75015 Paris, France.
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Feyereisen E, Lelorc’h M, Tachdjian G, Vekemans M, Frydman R, Frydman N. Robertsonian and Reciprocal Translocations: Is Preimplantation Genetic Diagnosis (PGD) a Realistic Treatment Option? Fertil Steril 2005. [DOI: 10.1016/j.fertnstert.2005.07.883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chaabouni M, Le Merrer M, Raoul O, Prieur M, de Blois MC, Philippe A, Vekemans M, Romana SP. Molecular cytogenetic analysis of five 2q37 deletions: refining the brachydactyly candidate region. Eur J Med Genet 2005; 49:255-63. [PMID: 16762827 DOI: 10.1016/j.ejmg.2005.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2004] [Revised: 07/01/2005] [Accepted: 07/21/2005] [Indexed: 10/25/2022]
Abstract
Deletions of the 2q37 region are associated with a recognizable pattern of MCA/MR so-called the AHO-like syndrome. Brachydactyly is a variable but characteristic feature of this clinical entity. Here we report on five cases of cytogenetically visible de novo deletions of this 2q37 chromosome region. Using FISH, we characterized at the molecular level the breakpoints of these deletions using a set of 15 BACs, PACs and YACs. In four patients, terminal deletions of variable size ranged between 6.2 and 10 Mb. The fifth patient had an interstitial deletion with an AHO-like phenotype including brachydactyly. These findings when compared to previous observations allowed us to narrow down the brachydactyly critical region between BACs RP11-585E12 and RP11-351E10. It contains HDAC4 and STK25 candidate genes loci.
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Affiliation(s)
- M Chaabouni
- Département de Génétique, Hôpital Necker-Enfants-Malades, 149, rue de Sèvres, 75743 Paris cedex 15, France
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Giurgea I, Sanlaville D, Fournet JC, Sempoux C, Bellanné-Chantelot C, Touati G, Hubert L, Groos MS, Brunelle F, Rahier J, Henquin JC, Dunne MJ, Jaubert F, Robert JJ, Nihoul-Fékété C, Vekemans M, Junien C, de Lonlay P. Congenital hyperinsulinism and mosaic abnormalities of the ploidy. J Med Genet 2005; 43:248-54. [PMID: 16033916 PMCID: PMC2563246 DOI: 10.1136/jmg.2005.034116] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Congenital hyperinsulinism and Beckwith-Wiedemann syndrome both lead to beta islet hyperplasia and neonatal hypoglycaemia. They may be related to complex genetic/epigenetic abnormalities of the imprinted 11p15 region. The possibility of common pathophysiological determinants has not been thoroughly investigated. OBJECTIVE To report abnormalities of the ploidy in two unrelated patients with congenital hyperinsulinism. METHODS Two patients with severe congenital hyperinsulinism, one overlapping with Beckwith-Wiedemann syndrome, had pancreatic histology, ex vivo potassium channel electrophysiological studies, and mutation detection of the encoding genes. The parental genetic contribution was explored using genome-wide polymorphism, fluorescent in situ hybridisation (FISH), and blood group typing studies. RESULTS Histological findings diverged from those described in focal congenital hyperinsulinism or Beckwith-Wiedemann syndrome. No potassium channel dysfunction and no mutation of its encoding genes (SUR1, KIR6.2) were detected. In patient 1 with congenital hyperinsulinism and Beckwith-Wiedemann syndrome, paternal isodisomy for the whole haploid set was homogeneous in the pancreatic lesion, and mosaic in the leucocytes and skin fibroblasts (hemihypertrophic segment). Blood group typing confirmed the presence of two erythroid populations (bi-parental v paternal only contribution). Patient 2 had two pancreatic lesions, both revealing triploidy with paternal heterodisomy. Karyotype and FISH analyses done on the fibroblasts and leucocytes of both patients were unremarkable (diploidy). CONCLUSIONS Diploid (biparental/paternal-only) mosaicism and diploid/triploid mosaicism were present in two distinct patients with congenital hyperinsulinism. These chromosomal abnormalities led to paternal disomy for the whole haploid set in pancreatic lesions (with isodisomy or heterodisomy), thereby extending the range and complexity of the mechanisms underlying congenital hyperinsulinism, associated or not with Beckwith-Wiedemann syndrome.
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Frydman N, Romana S, Ray P, Hamamah S, Tachdjian G, Marcadet-Fredet S, Munnich A, Vekemans M, Frydman R. [The Paris experience in preimplantation genetic diagnosis: evaluation after the first births]. Ann Endocrinol (Paris) 2005; 66:294-301. [PMID: 15988395 DOI: 10.1016/s0003-4266(05)81766-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
OBJECTIVE To report the birth of the first thirteen infants conceived after preimplantation genetic diagnosis (PGD) within the medical assistance federation of Paris. PATIENTS AND METHODS Fifty-nine couples were enrolled between January 2000 and July 2001. They had a total of 71 oocyte pick-up cycles. The collected oocytes were inseminated by intracytoplasmic sperm injection. The resulting embryos were biopsied on the third day of development and the genetic analysis was performed on the same day. Most of the embryo transfers were carried out on the fourth day. RESULTS The 71 oocyte pick-up cycles yielded 872 oocytes of which 731 were suitable for intracytoplasmic sperm injection. 421 embryos were biopsied and genetic diagnosis was obtained from 312 (74%) of these. 127 embryos were transferred during the course of 58 transfer procedures. There were 18 biologic and 12 clinical (7 singles, 4 twins and 1 triple) pregnancies. Thirteen infants have been born and 4 are expected. CONCLUSIONS PGD has gained a place among the choices offered to couples at risk of transmission of a serious and incurable genetic disease.
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Affiliation(s)
- N Frydman
- Service d'Histologie-Embryologie-Cytogénétique à orientation Biologique et Génétique de la Reproduction, Hôpital Antoine Béclère (AP-HP), 157, rue de la Porte de Trivaux, 92141 Clamart
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Vekemans M, Georgala A, Heymans C, Paesmans M, Klastersky J, Robinson J, Marchetti O, Ferrant A, Petersen K, Aoun M. Influence of Mannan Binding Lectin (MBL) serum levels on the risk of infection during chemotherapy induced neutropenia (N) in adult haematological cancer patients (pts). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.8147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- M. Vekemans
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - A. Georgala
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - C. Heymans
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - M. Paesmans
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - J. Klastersky
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - J. Robinson
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - O. Marchetti
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - A. Ferrant
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - K. Petersen
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
| | - M. Aoun
- Inst Jules Bordet, Bruxelles, Belgium; Ctr Hospitalier Univ Vaudois, Lausanne, Switzerland; Clin Univ St Luc, Bruxelles, Belgium; Natimmune A/S, Copenhagen, Denmark
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Flis-Trèves M, Frydman N, Frydman R, Kerbrat V, Munnich A, Vekemans M. [Pre-implantation genetic diagnosis and spontaneous pregnancies: an unexpected acting out]. ACTA ACUST UNITED AC 2005; 33:235-8. [PMID: 15894209 DOI: 10.1016/j.gyobfe.2005.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2004] [Accepted: 03/14/2005] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To understand the psychological motives that led these couples to take risks involved in genetic transmission and the possibility of another spontaneous pregnancy. To report our psychoanalytic experience to explain why after a request of pre-implantation genetic diagnosis (PGD), some women prefer to be spontaneously pregnant. PATIENTS AND METHOD Between 2000 and 2004, out of 643 requests of PGD, 541 have been admitted, among which 123 spontaneous pregnancies appeared during the process of PGD. RESULTS Some encounters with the patients have shown some reasons to these spontaneous pregnancies - denial of IVF, ambivalence of this desire for a child, denial of the risk, control of the procreation, family loyalty and fertility affirmation. DISCUSSION AND CONCLUSION The resort to PGD is more ambivalent than the thought of it because it means, beyond the request, conflict with transmission, culture, and history origins.
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Affiliation(s)
- M Flis-Trèves
- Service de gynécologie-obstétrique et médecine de la reproduction, hôpital Antoine-Béclère (AP-HP), 157, rue de la Porte-de-Trivaux, 92141 Clamart, France.
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Frebourg T, Oliveira C, Hochain P, Karam R, Manouvrier S, Graziadio C, Vekemans M, Hartmann A, Baert-Desurmont S, Alexandre C, Lejeune Dumoulin S, Marroni C, Martin C, Castedo S, Lovett M, Winston J, Machado JC, Attié T, Jabs EW, Cai J, Pellerin P, Triboulet JP, Scotte M, Le Pessot F, Hedouin A, Carneiro F, Blayau M, Seruca R. Cleft lip/palate and CDH1/E-cadherin mutations in families with hereditary diffuse gastric cancer. J Med Genet 2005; 43:138-42. [PMID: 15831593 PMCID: PMC2564630 DOI: 10.1136/jmg.2005.031385] [Citation(s) in RCA: 137] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report the association of CDH1/E-cadherin mutations with cleft lip, with or without cleft palate (CLP), in two families with hereditary diffuse gastric cancer (HDGC). In each family, the CDH1 mutation was a splicing mutation generating aberrant transcripts with an in-frame deletion, removing the extracellular cadherin repeat domains involved in cell-cell adhesion. Such transcripts might encode mutant proteins with trans-dominant negative effects. We found that CDH1 is highly expressed at 4 and 5 weeks in the frontonasal prominence, and at 6 weeks in the lateral and medial nasal prominences of human embryos, and is therefore expressed during the critical stages of lip and palate development. These findings suggest that alteration of the E-cadherin pathway can contribute to human clefting.
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Affiliation(s)
- T Frebourg
- Department of Genetics, Rouen University Hospital, Rouen, France
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Tabet AC, Gosset P, Elghezal H, Fontaine S, Martinovic J, Encha Razavi F, Romana S, Vekemans M, Morichon-Delvallez N. Prenatal diagnosis and characterization of an analphoid marker chromosome 16. Prenat Diagn 2005; 24:733-6. [PMID: 15386469 DOI: 10.1002/pd.804] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We report on a fetus with intrauterine growth retardation and multiple malformations diagnosed on ultrasound at 32 weeks. Examination of amniotic fluid cells in culture showed a 47,XY, i(16)(q10), +mar karyotype. Chromosome analysis of both parents was normal. Using spectral karyotyping, we identified the marker chromosome as a mitotically stable acentric marker chromosome derived from chromosome 16. Further studies using subtelomeric fluorescent probes confirmed the presence of an isochromosome for the long arm of chromosome 16 and showed that the acentric marker chromosome derived from the short arm of chromosome 16 leading to a trisomy for the long arm of chromosome 16. After genetic counseling, the parents decided to terminate the pregnancy. Fetal autopsy showed a male fetus with ambiguous external genitalia, cardiac malformation, megacystis and limbs anomalies as observed in other cases of trisomy for the long arm of chromosome 16. In addition, fetal brain examination showed vermian and olfactory bulb hypoplasia.
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Affiliation(s)
- A C Tabet
- Service de Cytogénétique et d'Embryologie, Hôpital Necker-Enfants Malades, Paris, France
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Le Lorc'h M, Tachdjian G, Frydman N, Frydman R, Vekemans M, Romana S. O▪87 Contribution of probes in preimplantation diagnosis of Robertsonian translocations. Reprod Biomed Online 2005. [DOI: 10.1016/s1472-6483(11)60308-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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