Search

Your search keyword '"Blaumeiser, Bettina"' showing total 25 results
Start Over Author "Blaumeiser, Bettina" Database OpenAIRE
25 results on '"Blaumeiser, Bettina"'

1. Assessment of the Genetic Spectrum of Uncombable Hair Syndrome in a Cohort of 107 Individuals

Author

Basmanav, F Buket, Cesarato, Nicole, Kumar, Sheetal, Borisov, Oleg, Kokordelis, Pavlos, Ralser, Damian J, Wehner, Maria, Axt, Daisy, Xiong, Xing, Thiele, Holger, Dolgin, Vadim, Gossmann, Yasmina, Fricker, Nadine, Dewenter, Malin Katharina, Weller, Karsten, Suri, Mohnish, Reichenbach, Herbert, Oji, Vinzenz, Addor, Marie-Claude, Ramirez, Karla, Stewart, Helen, Garcia Bartels, Natalie, Weibel, Lisa, Wagner, Nicola, George, Susannah, Kilic, Arzu, Tantcheva-Poór, Iliana, Stewart, Alison, Dikow, Nicola, Blaumeiser, Bettina, et al, and University of Zurich

Subjects
2708 Dermatology, 610 Medicine & health, 10220 Clinic for Surgery
Published
2022

2. Spectrum of movement disorders in 18p deletion syndrome

Author

Crosiers, David, Blaumeiser, Bettina, and Van Goethem, Gert

Subjects
congenital, hereditary, and neonatal diseases and abnormalities, Case Series, Human medicine, nervous system diseases
Abstract

Background Deletion of the short arm of chromosome 18 leads to 18p deletion syndrome. Clinical features include short stature, facial dysmorphism, mental retardation, and several types of movement disorders. Methods The 18p deletion syndrome in our patient was diagnosed using karyotype analysis and confirmed by genome‐wide single‐nucleotide polymorphism array. We have performed a literature search and summarized all previously reported patients with 18p deletion syndrome and movement disorders. Results We present a 41‐year‐old male patient with childhood‐onset generalized dystonia. Dystonia is the most prevalent movement disorder in 18p deletion patients, with onset ranging from childhood to adulthood. Chorea, myoclonus, tremor, tics, and ataxia have been reported in a minority of these patients. Conclusion Dystonia is commonly observed in 18p deletion syndrome. The variable size of the deletion on 18p is probably responsible for the broad phenotypic variability of movement disorders in this syndrome.

Published
2019

3. The BElgian PREnatal MicroArray (BEMAPRE) database : a systematic nationwide repository of fetal genomic aberrations

Author

Muys, Joke, Blaumeiser, Bettina, Jacquemyn, Yves, Bandelier, Claude, Brison, Nathalie, Bulk, Saskia, Chiarappa, Patrizia, Courtens, Winnie, De Leener, Anne, De Rademaeker, Marjan, Désir, Julie, Destree, Anne, Devriendt, Koenraad, Dheedene, Annelies, Fieuw, Annelies, Fransen, Erik, Gatot, Jean-Stéphane, Holmgren, Philip, Jamar, Mauicette, Janssens, Sandra, Keymolen, Kathelijn, Lederer, Damien, Menten, Björn, Meuwissen, Marije, Parmentier, Benoit, Pichon, Bruno, Rombout, Sonia, Sznajer, Yves, Van Den Bogaert, Ann, Van Den Bogaert, Kris, Vanakker, Olivier, Vermeesch, Joris, and Janssens, Katrien

Subjects
Human medicine, Biology
Abstract

Objective With the replacement of karyotyping by chromosomal microarray (CMA) in invasive prenatal diagnosis, new challenges have arisen. By building a national database, we standardize the classification and reporting of prenatally detected copy number variants (CNVs) across Belgian genetic centers. This database, which will link genetic and ultrasound findings with postnatal development, forms a unique resource to investigate the pathogenicity of variants of uncertain significance and to refine the phenotypic spectrum of pathogenic and susceptibility CNVs. Methods The BElgian PREnatal MicroArray (BEMAPRE) consortium is a collaboration of all genetic centers in Belgium. We collected data from all invasive prenatal procedures performed between May 2013 and July 2016. Results In this three‐year period, 13266 prenatal CMAs were performed. By national agreement, a limited number of susceptibility CNVs and no variants of uncertain significance were reported. Added values for using CMA versus conventional karyotyping were 1.8% in the general invasive population and 2.7% in cases with an ultrasound anomaly. Of the reported CNVs 31.5% would have remained undetected with NIPT as the first‐tier test. Conclusion The establishment of a national database for prenatal CNV data allows for a uniform reporting policy and the investigation of the prenatal and postnatal genotype‐phenotype correlation.

Published
2018

4. Genomewide analysis of copy number variants in alopecia areata in a Central European cohort reveals association with MCHR2

Author

Fischer, Johannes, Degenhardt, Franziska, Hofmann, Andrea, Redler, Silke, Basmanav, F. Buket, Heilmann-Heimbach, Stefanie, Hanneken, Sandra, Giehl, Kathrin A., Wolff, Hans, Moebus, Susanne, Kruse, Roland, Lutz, Gerhard, Blaumeiser, Bettina, Boehm, Markus, Bartels, Natalie Garcia, Blume-Peytavi, Ulrike, Petukhova, Lynn, Christiano, Angela M., Nöthen, Markus, Noethen, Markus M., and Betz, Regina C.

Subjects
0301 basic medicine, Adult, Male, medicine.medical_specialty, Alopecia Areata, DNA Copy Number Variations, Genotype, Medizin, Genome-wide association study, Dermatology, Biology, Biochemistry, Polymorphism, Single Nucleotide, Receptors, G-Protein-Coupled, Pathogenesis, Cohort Studies, 030207 dermatology & venereal diseases, 03 medical and health sciences, 0302 clinical medicine, Belgium, Molecular genetics, Germany, medicine, Humans, Copy-number variation, Receptors, Pituitary Hormone, Molecular Biology, Gene, Netherlands, Genetics, Melanins, Hypothalamic Hormones, Pigmentation, Chromosome Mapping, Alopecia areata, medicine.disease, Europe, Pituitary Hormones, 030104 developmental biology, Etiology, Female, Human medicine, Genome-Wide Association Study, Signal Transduction
Abstract

Alopecia areata (AA) is a common hair loss disorder of autoimmune aetiology, which often results in pronounced psychological distress. Understanding of the pathophysiology of AA is increasing, due in part to recent genetic findings implicating common variants at several genetic loci. To date, no study has investigated the contribution of copy number variants (CNVs) to AA, a prominent class of genomic variants involved in other autoimmune disorders. Here, we report a genomewide- and a candidate gene-focused CNV analysis performed in a cohort of 585 patients with AA and 1340 controls of Central European origin. A nominally significant association with AA was found for CNVs in the following five chromosomal regions: 4q35.2, 6q16.3, 9p23, 16p12.1 and 20p12.1. The most promising finding was a 342.5-kb associated region in 6q16.3 (duplications in 4/585 patients; 0/1340 controls). The duplications spanned the genes MCHR2 and MCHR2-AS1, implicated in melanin-concentrating hormone (MCH) signalling. These genes have not been implicated in previous studies of AA pathogenesis. However, previous research has shown that MCHR2 affects the scale colour of barfin flounder fish via the induction of melanin aggregation. AA preferentially affects pigmented hairs, and the hair of patients with AA frequently shows a change in colour when it regrows following an acute episode of AA. This might indicate a relationship between AA, pigmentation and MCH signalling. In conclusion, the present results provide suggestive evidence for the involvement of duplications in MCHR2 in AA pathogenesis.

Published
2017

5. New perspective on maintenance therapies for platinum- sensitive recurrent ovarian cancer in women with germline and somatic mutations in BRCA1 and BRCA2 genes

Author

Vergote, I., Bours, V., Blaumeiser, Bettina, Baurain, J-F., UCL - SSS/IREC/MIRO - Pôle d'imagerie moléculaire, radiothérapie et oncologie, and UCL - (SLuc) Unité d'oncologie médicale

Subjects
Platinum-sensitive recurrent ovarian cancer, BRCA 1, endocrine system diseases, BRCA 2, platinum-sensitive recurrent ovarian cancer, New Perspective, maintenance therapy, cancer, Human medicine, Maintenance therapy, female genital diseases and pregnancy complications, Cancer
Abstract

Ovarian cancer (OC) is the seventh most common cancer in women. Although women diagnosed with OC are usually treated frontline with platinum-based chemotherapy, most of them relapse once treatment is halted. Therefore, maintenance therapies have been developed to secure the response and delay further chemotherapy. There are two established maintenance therapies for women affected by platinum-sensitive recurrent OC: bevacizumab, a humanized monoclonal antibody targeting vascular endothelial growth factor, and olaparib, an inhibitor of poly (adenosine diphosphate [ADP]-ribose) polymerase (PARPi). Loss-of-function mutations in genes in the homologous recombination pathway, especially BRCA1 and BRCA2, predict higher rates of platinum sensitivity, better overall survival (OS), and better response to PARPi in women with OC. Among patients with platinum-sensitive recurrent OC, a BRCA mutation is the first genetically defined predictive marker for targeted therapy, since these patients are most likely to benefit from treatment with a PARPi, such as olaparib. In patients with platinum-sensitive recurrent OC without a BRCA mutation, bevacizumab currently seems to be the best maintenance option. Women with OC are progressively more routinely screened for germline BRCA mutations, and the implication of somatic BRCA mutations is increasingly being recognized in OC. Therefore, the recommendations should be updated to reflect the importance of both types of mutations. Together, these data highlight the fact that treatment of recurrent OC can be optimized using genomic contributions to individualize therapy and to improve treatment response.

Published
2016

6. Detection of a case of chronic myeloid leukaemia with deletions at the t(9;22) translocation breakpoints by a genome-wide non-invasive prenatal test

Author

Janssens, Katrien, Deiteren, Kathleen, Verlinden, Anke, Rooms, Liesbeth, Beckers, Sigri, Holmgren, Philip, Vermeulen, Katrien, Maes, Marie-Berthe, Mortier, Geert, and Blaumeiser, Bettina

Subjects
Human medicine
Abstract

Objective Non-invasive prenatal tests (NIPTs) interrogating the complete genome are able to detect not only fetal trisomy 13, 18 or 21 but additionally provide information on other (sub)chromosomal aberrations that can be fetal or maternal in origin. We demonstrate that in a subset of cases, this information is clinically relevant and should be reported to ensure adequate follow-up. Method Genome-wide NIPT was carried out and followed by a software analysis pipeline optimized to detect subchromosomal aberrations. Results The NIPT profile showed deletions on chromosomes 9 and 22: NIPT 9q33.3q34.12(129150001-133750000)x1,22q11.23(23550001-25450000)x1,22q13.1(37850001-39600000)x1. This result was confirmed by single nucleotide polymorphism array on maternal genomic DNA, which also demonstrated that the deletions were somatic in nature. Fluorescence in situ hybridization and quantitative real-time polymerase chain reaction revealed that the deletions were flanking the translocation breakpoint on the derivative chromosome 9 as the result of a t(9;22)(q34;q11.2) translocation with BCRABL1 fusion typical for chronic myeloid leukaemia (CML). Multidisciplinary counselling, together with complete blood count, taught that the woman was in an early chronic phase CML. The woman was followed up closely, and treatment could be postponed until after delivery. Conclusion Genome-wide NIPT identified a CML in chronic phase caused by the typical t(9;22)(q34;q11.2) translocation and accompanied by deletions flanking the translocation breakpoints.

Published
2016

7. Belgian MicroArray prenatal (BEMAPRE) database

Author

Muys, J., Janssens, K., Vanakker, O., Vilain, Catheline, Smits, Guillaume, C., Bandelier, Caberg, Jean-Hubert, Bulk, S., De Leener, A., De Rademaeker, Marjan, de Ravel, Thomy, Désir, Julie, Destrée, A., Dheedene, Annelies, Gaillez, S, Grisart, B, Hellin, AC, Janssens, S., Keymolen, K., Menten, Björn, Pichon, B., Ravoet, M., Revencu, N., Rombout, S., Staessen, Catherine, Van Den Bogaert, Ann, Van den Bogaert, Kris, Blaumeiser, Bettina, Jacquemyn, Y., Devriendt, Koenraad, Reproduction and Genetics, Clinical sciences, Faculty of Medicine and Pharmacy, Vrije Universiteit Brussel, and Medical Genetics

Abstract

OBJECTIVES: In Belgium, approximately 6% of the pregnant population undergoes an invasive procedure. As of 2013, samples for invasive prenatal diagnosis are analysed by Chromosomal Microarray Analysis (CMA). Despite the existence of publicly available copy number variant (CNV) databases, interpretation of prenatal CNVs remains difficult given the often limited phenotypic information. Concomitantly with the start of CMA in the prenatal setting, a Belgian national Ad Hoc Committee was established to cope with ambiguous situations and to reach consensus based on literature and previous experiences with similar variants. Moreover, Belgian genetic centers agreed on the establishment of a Belgian MicroArray PREnatal (BEMAPRE) database. METHODS: The framework of a national database was developed in consultation with the Belgian centers for Medical Genetics. All prenatal cases in which a pathogenic CNV or a unclassified variant (UV )>400 kb was detected, will be imported. Next, phenotypic data will be added from immediately after delivery. Moreover, children will be reassessed at the age of 2 to 3 years. Based on genotypic and phenotypic data from hundreds of prenatal cases, we will be able to perform meta-analysis. RESULTS: Our reporting policy is largely determined by the classification of the CNVs in 3 categories, i.e. pathogenic, benign and UV. Benign CNVs and non-actionable incidental findings are reported normal after consulting the Ad Hoc Committee. If UVs have intragenic deletions/duplications in a known gene; are mentioned in literature and/or databases; consist of deletions/duplications covering more than 18 genes or comprise an X-linked gene in a XY fetus, the likeliness of pathogenicity is evaluated. In case of strong arguments for pathogenicity, parents are tested. They are reported if parental phenotype is potentially divergent or if de novo. Known pathogenic variants, risk factors with high penetrance or ultrasound anomalies and actionable incidental 31 Prenatal Diagnosis 2015, 35, 27–109 © 2015 John Wiley& Sons, Ltd. findings are reported to the parents. Since the implementation of CMA in Belgium, 7875 arrays were performed. 252 (3.20 %) were reported as having a pathogenic CNV. 8.66% (682 samples) of all arrays revealed monosomy/trisomy occurrence. Data on the relationship between indication for invasive testing, prenatal phenotype and genotype will be provided. CONCLUSIONS: The development of the BEMAPRE databasewhich includes CNV data on all prenatal invasive tests performed in Belgium is of scientific, clinical and societal importance. It will alloweasy communication about ambiguous cases among the Belgian genetic centers, but at the same time, will be made available to other scientists with questions about difficult-to-interpret prenatal CNVs.

Published
2015

8. Bladder exstrophy-epispadias complex and triple-X syndrome : incidental finding or causality?

Author

Ramaekers, Paul, Loeys, Bart, von Lowtzow, Catharina, Reutter, Heiko, Leroy, Yves, Colpaert, Cecile, Blaumeiser, Bettina, Janssens, Katrien, Parizel, Maxim, and Jacquemyn, Yves

Subjects
Pharmacology. Therapy, Biology
Abstract

Background: Bladder exstrophy is a rare malformation. Prenatal diagnosis is usually an incidental finding on routine ultrasound examination. Triple-X syndrome (karyotype 47, XXX) is the most frequent sex chromosome aneuploidy in live-born females (approximately 1 in 1000). The diagnosis is often not made because women with 47, XXX karyotype have no or hardly any clinical symptoms during life. Methods: Prenatal diagnosis of triple X karyotype is usually an incidental finding when an invasive prenatal diagnosis is performed for other reasons. Results: Here, we report on two cases with bladder exstrophy and triple-X syndrome, one in a fetus and one in an adult. In view of two previous reports of this association in literature, causality of these two conditions should be considered. Conclusion: A gene dosage effect as possible underlying mechanisms will be discussed. (C) 2014 Wiley Periodicals, Inc.

Published
2014

10. Direct-to-consumer genetic testing services : PUBLICATION OF THE SUPERIOR HEALTH COUNCIL No. 8714

Author

Borry, Pascal, Antoine-Poirel, Hélène, Baatout, Sarah, Blaumeiser, Bettina, Cassiman, Jean-Jacques, de Thibault de Boesinghe, Léopold, Fondu, Michel, Godderis, Lode, Haufroid, Vincent, Hulstaert, Frank, Kirsch-Volders, Micheline, Liebaers, Inge, Loeys, Bart, Poppe, Bruce, Schamps, Geneviève, Van Larebeke, Nicolas, Van Nerom, Anne, Van Oyen, Herman, Ver Ellen-Dumoulin, Christine, and Vikkula, Mikka

Abstract

status: published

Published
2012

11. Direct-to-consumer genetic testing services

Author

Borry, Pascal, Poirel, Hélène, Baatout, Sarah, Blaumeiser, Bettina, Cassiman, Jean-Jacques, de Thibault de Boesinghe, Léopold, Fondu, Michel, Godderis, Lode, Haufroid, Vincent, Hulstaert, Frank, Kirsch-Volders, Micheline, Liebaers, Inge, Loeys, Bart, Poppe, Bruce, Schamps, Geneviève, Van Larebeke, Nicolas, Van Nerom, Anne, Van Oyen, Herman, Dumoulin, Christine, Vikkula, Miikka, UCL - SSS/DDUV - Institut de Duve, UCL - SSS/IREC/LTAP - Louvain Centre for Toxicology and Applied Pharmacology, UCL - SSH/JURI/PJPR - Droit privé, UCL - (SLuc) Centre de génétique médicale UCL, and UCL - (SLuc) Service de biochimie médicale

Subjects
ComputingMilieux_THECOMPUTINGPROFESSION, education
Abstract

In this scientific policy advice report, the Superior Health Council provides recommendations and policy options which are fostering an ethically and medically appropriate offer of direct-to-consumer genetic tests, as the one provided through the healthcare system in Belgium

Published
2012

12. The **TRAF1/C5** locus confers risk for familial and severe alopecia areata

Author

Redler, S., Brockschmidt, F.F., Forstbauer, L., Giehl, K.A., Herold, C., Eigelshoven, S., Hanneken, S., de Weert, J., Lutz, G., Wolff, H., Kruse, B., Blaumeiser, Bettina, Böhm, M., Becker, T., Nöthen, Markus, and Betz, R.C.

Subjects
Human medicine
Abstract

Background Alopecia areata (AA) is a common hair loss disorder with a complex mode of inheritance. Autoimmune mechanisms are presumed to be crucial aetiologically. It is plausible that a number of autoimmune disorders may share a common genetic background. This phenomenon has been demonstrated in previous studies, which have shown an overlap of susceptibility alleles between AA and other autoimmune disorders. Recent studies have shown that genetic variants on the TRAF1/C5 (tumor necrosis factor receptor-associated factor 1, complement component 5) locus confer susceptibility to rheumatoid arthritis (RA). Objectives To examine the role of the TRAF1/C5 locus in the development of AA using a large sample of 1195 patients with AA and 1280 controls. Methods We genotyped the two most significant single nucleotide polymorphisms (SNPs) (rs10818488, rs2416808) from a former RA candidate gene study. After having obtained evidence for association, we performed a fine-mapping study and genotyped the locus with an additional 27 SNPs. Results While no significant result was obtained for the overall sample, rs2416808 showed significant associations in the analysis of the subgroups with severe AA and with a positive family history. The most significant P-value for rs2416808 was in familial cases (P = 0·004, Pcorr = 0·026). The fine mapping revealed significant associations for four additional SNPs in the analysis of subgroups, with rs2416808 remaining the most significant marker. Conclusions Our results point to the involvement of the TRAF1/C5 locus in the aetiology of familial and severe AA, and provide further support for a shared aetiology between AA and other autoimmune disorders.

Published
2010

15. Femur-Fibula-Ulna complex

Author

Geniets, C., Vanhoenacker, Filip, Blaumeiser, Bettina, and Parizel, Paul M.

Published
2006

20. Chromosomal contacts connect loci associated with autism, BMI and head circumference phenotypes

Author

Loviglio, M N, Leleu, M, Männik, K, Passeggeri, M, Giannuzzi, G, Van Der Werf, I, Waszak, S M, Zazhytska, M, Roberts-Caldeira, I, Gheldof, N, Migliavacca, E, Alfaiz, A A, Hippolyte, L, Maillard, A M, Loviglio, Maria Nicla, Männik, Katrin, Van Der Werf, Ilse, Giannuzzi, Giuliana, Zazhytska, Marianna, Gheldof, Nele, Migliavacca, Eugenia, Alfaiz, Ali A, Roberts-Caldeira, Inês, Hippolyte, Loyse, Maillard, Anne M, Ferrarini, Alessandra, Butschi, Florence Niel, Conrad, Bernard, Addor, Marie-Claude, Belfiore, Marco, Roetzer, Katharina, Dijck, Anke Van, Blaumeiser, Bettina, Kooy, Frank, Roelens, Filip, Dheedene, Annelies, Chiaie, Barbara Delle, Menten, Björn, Oostra, Ann, Caberg, Jean-Hubert, Carter, Melissa, Kellam, Barbara, Stavropoulos, Dimitri J, Marshall, Christian, Scherer, Stephen W, Weksberg, Rosanna, Cytrynbaum, Cheryl, Bassett, Anne, Lowther, Chelsea, Gillis, Jane, Mackay, Sara, Bache, Iben, Ousager, Lilian B, Smerdel, Maja Patricia, Graakjaer, Jesper, Kjaergaard, Susanne, Metspalu, Andres, Mathieu, Michele, Bonneau, Dominique, Guichet, Agnes, Parent, Philippe, Férec, Claude, Gerard, Marion, Plessis, Ghislaine, Lespinasse, James, Masurel, Alice, Marle, Nathalie, Faivre, Laurence, Callier, Patrick, Layet, Valerie, Meur, Nathalie Le, Le Goff, Céline, Duban-Bedu, Bénédicte, Sukno, Sylvie, Boute, Odile, Andrieux, Joris, Blanchet, Patricia, Geneviève, David, Puechberty, Jacques, Schneider, Anouck, Leheup, Bruno, Jonveaux, Philippe, Mercier, Sandra, David, Albert, Le Caignec, Cédric, De Pontual, Loic, Pipiras, Eva, Jacquette, Aurelia, Keren, Boris, Gilbert-Dussardier, Brigitte, Bilan, Frederic, Goldenberg, Alice, Chambon, Pascal, Toutain, Annick, Till, Marianne, Sanlaville, Damien, Leube, Barbara, Royer-Pokora, Brigitte, Grabe, Hans Jörgen, Schmidt, Carsten Oliver, Schurmann, Claudia, Homuth, Georg, Thorleifsson, Gudmar, Thorsteinsdottir, Unnur, Bernardini, Laura, Novelli, Antonio, Micale, Lucia, Merla, Giuseppe, Zollino, Marcella, Mari, Francesca, Rizzo, Caterina Lo, Renieri, Alessandra, Silengo, Margherita, Vulto-Van Silfhout, Anneke T, Schouten, Meyke, Pfundt, Rolph, De Leeuw, Nicole, Vansenne, Fleur, Maas, Saskia M, Barge-Schaapveld, Daniela Qcm, Knegt, Alida C, Stadheim, Barbro, Rodningen, Olaug, Houge, Gunnar, Price, Sue, Hawkes, Lara, Campbell, Carolyn, Kini, Usha, Vogt, Julie, Walters, Robin, Blakemore, Alexandra, Gusella, James F, Shen, Yiping, Scott, Daryl, Bacino, Carlos A, Tsuchiya, Karen, Ladda, Roger, Sell, Susan, Asamoah, Alexander, Hamati, Aline I, Rosenfeld, Jill A, Shaffer, Lisa G, Mitchell, Elyse, Hodge, Jennelle C, Beckmann, Jacques S, Jacquemont, Sébastien, Reymond, Alexandre, Ewans, Lisa J, Mowat, David, Walker, Jan, Amor, David J, Esch, Hilde Van, Leroy, Patricia, Bamforth, John-Steven, Babu, Deepti, Isidor, Bertrand, Didonato, Nataliya, Hackmann, Karl, Passeggeri, Marzia, Haeringen, Arie Van, Smith, Rosemarie, Ellingwood, Sara, Farber, Darren M, Puri, Vinay, Zadeh, Neda, Weaver, David D, Miller, Mandy, Wilks, Timothy, Jorgez, Carolina J, Lafayette, Deedee, Van Dijck, A, Kooy, R F, Sanlaville, D, Rosenfeld, J A, Shaffer, L G, Andrieux, J, Marshall, C, Scherer, S W, Shen, Y, Gusella, J F, Thorsteinsdottir, U, Thorleifsson, G, Dermitzakis, E T, Deplancke, B, Beckmann, J S, Rougemont, J, Jacquemont, S, Reymond, A, 2p15 Consortium, and 16p11 2 Consortium

Abstract

Copy number variants (CNVs) are major contributors to genomic imbalance disorders. Phenotyping of 137 unrelated deletion and reciprocal duplication carriers of the distal 16p11.2 220 kb BP2-BP3 interval showed that these rearrangements are associated with autism spectrum disorders and mirror phenotypes of obesity/underweight and macrocephaly/microcephaly. Such phenotypes were previously associated with rearrangements of the non-overlapping proximal 16p11.2 600 kb BP4-BP5 interval. These two CNV-prone regions at 16p11.2 are reciprocally engaged in complex chromatin looping, as successfully confirmed by 4C-seq, fluorescence in situ hybridization and Hi-C, as well as coordinated expression and regulation of encompassed genes. We observed that genes differentially expressed in 16p11.2 BP4-BP5 CNV carriers are concomitantly modified in their chromatin interactions, suggesting that disruption of chromatin interplays could participate in the observed phenotypes. We also identified cis- and trans-acting chromatin contacts to other genomic regions previously associated with analogous phenotypes. For example, we uncovered that individuals with reciprocal rearrangements of the trans-contacted 2p15 locus similarly display mirror phenotypes on head circumference and weight. Our results indicate that chromosomal contacts’ maps could uncover functionally and clinically related genes.

24. Defining the Effect of the 16p11.2 Duplication on Cognition, Behavior, and Medical Comorbidities

Author

D'Angelo, D., Lebon, S., Chen, Q., Martin-Brevet, S., Snyder, L. G., Hippolyte, L., Hanson, E., Maillard, A. M., Faucett, W. A., Mace, A., Pain, A., Bernier, R., Chawner, S. J. R. A., David, A., Andrieux, J., Aylward, E., Baujat, G., Caldeira, I., Conus, P., Ferrari, C., Forzano, F., Gerard, M., Goin-Kochel, R. P., Grant, E., Hunter, J. V., Isidor, B., Jacquette, A., Jonch, A. E., Keren, B., Lacombe, D., Le Caignec, C., Martin, C. L., Mannik, K., Metspalu, A., Mignot, C., Mukherjee, P., Owen, M. J., Passeggeri, M., Rooryck-Thambo, C., Rosenfeld, J. A., Spence, S. J., Steinman, K. J., Tjernagel, J., Van Haelst, M., Shen, Y., Draganski, B., Sherr, E. H., Ledbetter, D. H., van den Bree, M. B. M., Beckmann, J. S., Spiro, J. E., Reymond, A., Jacquemont, S., Chung, W. K., Knoers, N. V. A. M., Martinet, D., Belfiore, M., Cuvellier, J. -C., Devries, B., Delrue, M. -A., Doco-Fenzy, M., Lebel, R., Leheup, B., Lewis, S., Mencarelli, M. A., Minet, J. -C., Vincent-Delorme, C., Moerman, A., Mucciolo, M., Ounap, K., Rajcan-Separovic, E., Renieri, A., Sanlaville, D., Faas, B. H., Koolen, D. A., Vulto-Van Silfhout, A., de Leeuw, N., Rosanfeld, J. A., Filges, I., Achatz, E., Roetzer, K. M., Bonneau, D., Guichet, A., Lazaro, L., Plessis, G., Kroisel, P. M., Reis, A., Jonveaux, P., Chantot-Bastaraud, S., Rauch, A., Demeer, B., Nordgren, A., Labalme, A., Ferrarini, A., Ramelli, G. P., Guilmatre, A., Joly-Helas, G., Haize, S., Layet, V., Le Gallic, S., de Freminville, B., Touraine, R., Van Binsbergen, E., Mathieu-Dramard, M., Barth, M., Blaumeiser, B., Masurel, A., Cailler, P., Olivier-Faivre, L., Malacarne, M., Coutton, C., Dieterich, K., Satre, V., Wallgren-Pettersson, C., Tensgrom, C., Kaksonen, S., Duban-Bedu, B., Holder, M., Rossi, M., Gaillard, D., Bock, D., Bednarek, N., Guillin, O., Bizzarri, V., Flori, E., Silengo, M., Kooy, R. F., Aboura, A., Beri, M., Delobel, B., Drunat, S., Jaros, Z., Kolk, A., Reigo, A., Zufferey, F., Beckmann, N., Faravelli, F., Alupay, H., Aaronson, B., Ackerman, S., Ankenman, K., Anwar, A., Atwell, C., Bowe, A., Beaudet, A. L., Benedetti, M., Berg, J., Berman, J., Berry, L. N., Bibb, A. L., Blaskey, L., Brennan, J., Brewton, C. M., Buckner, R., Bukshpun, P., Burko, J., Cali, P., Cerban, B., Chang, Y., Cheong, M., Chow, V., Chu, Z., Chudnovskaya, D., Cornew, L., Dale, C., Dell, J., Dempsey, A. G., Deschamps, T., Earl, R., Edgar, J., Elgin, J., Endre, J., Evans, Y. L., Findlay, A., Fischbach, G. D., Fisk, C., Fregeau, B., Gaetz, B., Gaetz, L., Garza, S., Gerdts, J., Glenn, O., Gobuty, S. E., Golembski, R., Greenup, M., Heiken, K., Hines, K., Hinkley, L., Jackson, F. I., Jenkins, J., Jeremy, R. J., Johnson, K., Kanne, S. M., Kessler, S., Khan, S. Y., Ku, M., Kuschner, E., Laakman, A. L., Lam, P., Lasala, M. W., Lee, H., La, K., Levy, S., Lian, A., Llorens, A. V., Loftus, K., Luks, T. L., Marco, E. J., Martin, S., Martin, A. J., Marzano, G., Masson, C., Mcgovern, K. E., Keehn, R. M., Miller, D. T., Miller, F. K., Moss, T. J., Murray, R., Nagarajan, S. S., Nowell, K. P., Owen, J., Paal, A. M., Packer, A., Page, P. Z., Paul, B. M., Peters, A., Peterson, D., Poduri, A., Pojman, N. J., Porche, K., Proud, M. B., Qasmieh, S., Ramocki, M. B., Reilly, B., Roberts, T. P. L., Shaw, D., Sinha, T., Smith, B., Snow, A., Swarnakar, V., Thieu, T., Triantafallou, C., Vaughan, R., Wakahiro, M., Wallace, A., Ward, T., Wenegrat, J., Wolken, A., Blaumeiser, Bettina, Kooy, Frank, Other departments, Cardiff University Experiences of Children With Copy Number Variants (ECHO) Study, 16p11.2 European Consortium, Simons Variation in Individuals Project (VIP) Consortium, Knoers, VA., Martinet, D., Belfiore, M., Cuvellier, JC., de Vries, B., Delrue, MA., Doco-Fenzy, M., Lebel, R., Leheup, B., Lewis, S., Mencarelli, MA., Minet, JC., Vincent-Delorme, C., Moerman, A., Mucciolo, M., Ounap, K., Rajcan-Separovic, E., Renieri, A., Sanlaville, D., Faas, BH., Koolen, DA., Vulto-van Silfhout, A., de Leeuw, N., Rosenfeld, JA., Filges, I., Achatz, E., Roetzer, KM., Bonneau, D., Guichet, A., Lazaro, L., Plessis, G., Kroisel, PM., Reis, A., Jonveaux, P., Chantot-Bastaraud, S., Rauch, A., Demeer, B., Nordgren, A., Labalme, A., Ferrarini, A., Ramelli, GP., Guilmatre, A., Joly-Helas, G., Haize, S., Layet, V., Le Gallic, S., de Fréminville, B., Touraine, R., Van Binsbergen, E., Mathieu-Dramard, M., Barth, M., Blaumeiser, B., Masurel, A., Cailler, P., Olivier-Faivre, L., Malacarne, M., Coutton, C., Dieterich, K., Satre, V., Wallgren-Pettersson, C., Tensgrom, C., Kaksonen, S., Duban-Bedu, B., Holder, M., Rossi, M., Gaillard, D., Bock, D., Bednarek, N., Guillin, O., Bizzarri, V., Flori, E., Silengo, M., Kooy, RF., Aboura, A., Beri, M., Delobel, B., Drunat, S., Jaros, Z., Kolk, A., Reigo, A., Zufferey, F., Beckmann, N., Faravelli, F., Alupay, H., Aaronson, B., Ackerman, S., Ankenman, K., Anwar, A., Atwell, C., Bowe, A., Beaudet, AL., Benedetti, M., Berg, J., Berman, J., Berry, LN., Bibb, AL., Blaskey, L., Brennan, J., Brewton, CM., Buckner, R., Bukshpun, P., Burko, J., Cali, P., Cerban, B., Chang, Y., Cheong, M., Chow, V., Chu, Z., Chudnovskaya, D., Cornew, L., Dale, C., Dell, J., Dempsey, AG., Deschamps, T., Earl, R., Edgar, J., Elgin, J., Olson, JE., Evans, YL., Findlay, A., Fischbach, GD., Fisk, C., Fregeau, B., Gaetz, B., Gaetz, L., Garza, S., Gerdts, J., Glenn, O., Gobuty, SE., Golembski, R., Greenup, M., Heiken, K., Hines, K., Hinkley, L., Jackson, FI., Jenkins J.<Suffix>3rd</Suffix>, Jeremy, RJ., Johnson, K., Kanne, SM., Kessler, S., Khan, SY., Ku, M., Kuschner, E., Laakman, AL., Lam, P., Lasala, MW., Lee, H., LaGuerre, K., Levy, S., Lian Cavanagh, A., Llorens, AV., Loftus Campe, K., Luks, TL., Marco, EJ., Martin, S., Martin, AJ., Marzano, G., Masson, C., McGovern, KE., McNally Keehn, R., Miller, DT., Miller, FK., Moss, TJ., Murray, R., Nagarajan, SS., Nowell, KP., Owen, J., Paal, AM., Packer, A., Page, PZ., Paul, BM., Peters, A., Peterson, D., Poduri, A., Pojman, NJ., Porche, K., Proud, MB., Qasmieh, S., Ramocki, MB., Reilly, B., Roberts, TP., Shaw, D., Sinha, T., Smith-Packard, B., Snow Gallagher, A., Swarnakar, V., Thieu, T., Triantafallou, C., Vaughan, R., Wakahiro, M., Wallace, A., Ward, T., Wenegrat, J., Wolken, A., Human genetics, Amsterdam Neuroscience - Complex Trait Genetics, and Amsterdam Reproduction & Development (AR&D)

Subjects
Male, 0301 basic medicine, Proband, Pediatrics, Autism Spectrum Disorder, Developmental Disabilities, Chromosome Disorders, Comorbidity, Nonverbal learning disorder, Cohort Studies, Cognition, 0302 clinical medicine, Cerebellum, Chromosome Duplication, Gene duplication, Copy-number variation, Non-U.S. Gov't, Child, 2. Zero hunger, Intelligence quotient, Research Support, Non-U.S. Gov't, Middle Aged, Psychiatry and Mental health, Microcephaly, Female, Schizophrenic Psychology, Chromosome Deletion, Psychology, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], Human, Adult, medicine.medical_specialty, Adolescent, DNA Copy Number Variations, Research Support, Nervous System Malformations, Article, Chromosomes, Young Adult, 03 medical and health sciences, Intellectual Disability, Journal Article, medicine, Humans, Autistic Disorder, Preschool, Psychiatry, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Epilepsy, Pair 16, Other Research Radboud Institute for Health Sciences [Radboudumc 0], Case-control study, Autism Spectrum Disorder/epidemiology, Autism Spectrum Disorder/genetics, Autistic Disorder/epidemiology, Autistic Disorder/genetics, Case-Control Studies, Cerebellum/abnormalities, Child, Preschool, Chromosome Disorders/epidemiology, Chromosome Disorders/genetics, Chromosomes, Human, Pair 16/genetics, Developmental Disabilities/epidemiology, Developmental Disabilities/genetics, Epilepsy/epidemiology, Epilepsy/genetics, Intellectual Disability/epidemiology, Intellectual Disability/genetics, Microcephaly/epidemiology, Microcephaly/genetics, Nervous System Malformations/epidemiology, Nervous System Malformations/genetics, Schizophrenia/epidemiology, Schizophrenia/genetics, medicine.disease, 030104 developmental biology, Chromosomes, Human, Pair 16, Schizophrenia, Autism, Human medicine, 030217 neurology & neurosurgery
Abstract

Contains fulltext : 167711.pdf (Publisher’s version ) (Closed access) IMPORTANCE: The 16p11.2 BP4-BP5 duplication is the copy number variant most frequently associated with autism spectrum disorder (ASD), schizophrenia, and comorbidities such as decreased body mass index (BMI). OBJECTIVES: To characterize the effects of the 16p11.2 duplication on cognitive, behavioral, medical, and anthropometric traits and to understand the specificity of these effects by systematically comparing results in duplication carriers and reciprocal deletion carriers, who are also at risk for ASD. DESIGN, SETTING, AND PARTICIPANTS: This international cohort study of 1006 study participants compared 270 duplication carriers with their 102 intrafamilial control individuals, 390 reciprocal deletion carriers, and 244 deletion controls from European and North American cohorts. Data were collected from August 1, 2010, to May 31, 2015 and analyzed from January 1 to August 14, 2015. Linear mixed models were used to estimate the effect of the duplication and deletion on clinical traits by comparison with noncarrier relatives. MAIN OUTCOMES AND MEASURES: Findings on the Full-Scale IQ (FSIQ), Nonverbal IQ, and Verbal IQ; the presence of ASD or other DSM-IV diagnoses; BMI; head circumference; and medical data. RESULTS: Among the 1006 study participants, the duplication was associated with a mean FSIQ score that was lower by 26.3 points between proband carriers and noncarrier relatives and a lower mean FSIQ score (16.2-11.4 points) in nonproband carriers. The mean overall effect of the deletion was similar (-22.1 points; P < .001). However, broad variation in FSIQ was found, with a 19.4- and 2.0-fold increase in the proportion of FSIQ scores that were very low (100) compared with the deletion group (P < .001). Parental FSIQ predicted part of this variation (approximately 36.0% in hereditary probands). Although the frequency of ASD was similar in deletion and duplication proband carriers (16.0% and 20.0%, respectively), the FSIQ was significantly lower (by 26.3 points) in the duplication probands with ASD. There also were lower head circumference and BMI measurements among duplication carriers, which is consistent with the findings of previous studies. CONCLUSIONS AND RELEVANCE: The mean effect of the duplication on cognition is similar to that of the reciprocal deletion, but the variance in the duplication is significantly higher, with severe and mild subgroups not observed with the deletion. These results suggest that additional genetic and familial factors contribute to this variability. Additional studies will be necessary to characterize the predictors of cognitive deficits.

Published
2016

25. Chromosomal contacts connect loci associated with autism, BMI and head circumference phenotypes

Author

Loviglio, M. N, Leleu, M., Männik, K., Passeggeri, M., Giannuzzi, G., van der Werf, I., Waszak, S. M., Zazhytska, M., Roberts Caldeira, I., Gheldof, N., Migliavacca, E., Alfaiz, A. A., Hippolyte, L., Maillard, A. M., van Dijck, A., Kooy, R. F., Sanlaville, D., Rosenfeld, J. A., Shaffer, L. G., Andrieux, J., Marshall, C., Scherer, S. W., Shen, Y., Gusella, J. F., Thorsteinsdottir, U., Thorleifsson, G., Dermitzakis, E. T., Deplancke, B., Beckmann, J. S., Rougemont, J., Jacquemont, S., Reymond, A., Collaborators: Loviglio MN, Männik, K, van der Werf, I, Giannuzzi, G, Zazhytska, M, Gheldof, N, Migliavacca, E, Alfaiz, Aa, Roberts Caldeira, I, Hippolyte, L, Maillard, Am, Ferrarini, A, Butschi, Fn, Conrad, B, Addor, Mc, Belfiore, M, Roetzer, K, Dijck, Av, Blaumeiser, B, Kooy, F, Roelens, F, Dheedene, A, Chiaie, Bd, Menten, B, Oostra, A, Caberg, Jh, Carter, M, Kellam, B, Stavropoulos, Dj, Marshall, C, Scherer, Sw, Weksberg, R, Cytrynbaum, C, Bassett, A, Lowther, C, Gillis, J, Mackay, S, Bache, I, Ousager, Lb, Smerdel, Mp, Graakjaer, J, Kjaergaard, S, Metspalu, A, Mathieu, M, Bonneau, D, Guichet, A, Parent, P, Férec, C, Gerard, M, Plessis, G, Lespinasse, J, Masurel, A, Marle, N, Faivre, L, Callier, P, Layet, V, Meur, Nl, Le Goff, C, Duban Bedu, B, Sukno, S, Boute, O, Andrieux, J, Blanchet, P, Geneviève, D, Puechberty, J, Schneider, A, Leheup, B, Jonveaux, P, Mercier, S, David, A, Le Caignec, C, de Pontual, L, Pipiras, E, Jacquette, A, Keren, B, Gilbert Dussardier, B, Bilan, F, Goldenberg, A, Chambon, P, Toutain, A, Till, M, Sanlaville, D, Leube, B, Royer Pokora, B, Grabe, Hj, Schmidt, Co, Schurmann, C, Homuth, G, Thorleifsson, G, Thorsteinsdottir, U, Bernardini, L, Novelli, A, Micale, L, Merla, G, Zollino, M, Mari, Francesca, Rizzo, Cl, Renieri, Alessandra, Silengo, M, Vulto van Silfhout AT, Schouten, M, Pfundt, R, de Leeuw, N, Vansenne, F, Maas, Sm, Barge Schaapveld DQ, Knegt, Ac, Stadheim, B, Rodningen, O, Houge, G, Price, S, Hawkes, L, Campbell, C, Kini, U, Vogt, J, Walters, R, Blakemore, A, Gusella, Jf, Shen, Y, Scott, D, Bacino, Ca, Tsuchiya, K, Ladda, R, Sell, S, Asamoah, A, Hamati, Ai, Rosenfeld, Ja, Shaffer, Lg, Mitchell, E, Hodge, Jc, Beckmann, Js, Jacquemont, S, Reymond, A, Ewans, Lj, Mowat, D, Walker, J, Amor, Dj, Esch, Hv, Leroy, P, Bamforth, Js, Babu, D, Isidor, B, Didonato, N, Hackmann, K, Passeggeri, M, Haeringen, Av, Smith, R, Ellingwood, S, Farber, Dm, Puri, V, Zadeh, N, Weaver, Dd, Miller, M, Wilks, T, Jorgez, Cj, Lafayette, D, Blaumeiser, Bettina, 2p15 Consortium, 16p11.2 Consortium, Loviglio, M.N., Männik, K., van der Werf, I., Giannuzzi, G., Zazhytska, M., Gheldof, N., Migliavacca, E., Alfaiz, A.A., Roberts-Caldeira, I., Hippolyte, L., Maillard, A.M., Ferrarini, A., Butschi, F.N., Conrad, B., Addor, M.C., Belfiore, M., Roetzer, K., Dijck, A.V., Blaumeiser, B., Kooy, F., Roelens, F., Dheedene, A., Chiaie, B.D., Menten, B., Oostra, A., Caberg, J.H., Carter, M., Kellam, B., Stavropoulos, D.J., Marshall, C., Scherer, S.W., Weksberg, R., Cytrynbaum, C., Bassett, A., Lowther, C., Gillis, J., MacKay, S., Bache, I., Ousager, L.B., Smerdel, M.P., Graakjaer, J., Kjaergaard, S., Metspalu, A., Mathieu, M., Bonneau, D., Guichet, A., Parent, P., Férec, C., Gerard, M., Plessis, G., Lespinasse, J., Masurel, A., Marle, N., Faivre, L., Callier, P., Layet, V., Meur, N.L., Le Goff, C., Duban-Bedu, B., Sukno, S., Boute, O., Andrieux, J., Blanchet, P., Geneviève, D., Puechberty, J., Schneider, A., Leheup, B., Jonveaux, P., Mercier, S., David, A., Le Caignec, C., de Pontual, L., Pipiras, E., Jacquette, A., Keren, B., Gilbert-Dussardier, B., Bilan, F., Goldenberg, A., Chambon, P., Toutain, A., Till, M., Sanlaville, D., Leube, B., Royer-Pokora, B., Grabe, H.J., Schmidt, C.O., Schurmann, C., Homuth, G., Thorleifsson, G., Thorsteinsdottir, U., Bernardini, L., Novelli, A., Micale, L., Merla, G., Zollino, M., Mari, F., Rizzo, C.L., Renieri, A., Silengo, M., Vulto-van Silfhout, A.T., Schouten, M., Pfundt, R., de Leeuw, N., Vansenne, F., Maas, S.M., Barge-Schaapveld, D.Q., Knegt, A.C., Stadheim, B., Rodningen, O., Houge, G., Price, S., Hawkes, L., Campbell, C., Kini, U., Vogt, J., Walters, R., Blakemore, A., Gusella, J.F., Shen, Y., Scott, D., Bacino, C.A., Tsuchiya, K., Ladda, R., Sell, S., Asamoah, A., Hamati, A.I., Rosenfeld, J.A., Shaffer, L.G., Mitchell, E., Hodge, J.C., Beckmann, J.S., Jacquemont, S., Reymond, A., Ewans, L.J., Mowat, D., Walker, J., Amor, D.J., Esch, H.V., Leroy, P., Bamforth, J.S., Babu, D., Isidor, B., DiDonato, N., Hackmann, K., Passeggeri, M., Haeringen, A.V., Smith, R., Ellingwood, S., Farber, D.M., Puri, V., Zadeh, N., Weaver, D.D., Miller, M., Wilks, T., Jorgez, C.J., Lafayette, D., Other departments, and Human Genetics

Subjects
0301 basic medicine, Male, Microcephaly, Autism Spectrum Disorder, Obesity/genetics, Settore MED/03 - GENETICA MEDICA, Body Mass Index, Microcephaly/genetics, Gene duplication, Chromosome Duplication, ddc:576.5, Copy-number variation, Child, In Situ Hybridization, In Situ Hybridization, Fluorescence, Genetics, medicine.diagnostic_test, Chromosome Mapping, Middle Aged, Phenotype, Chromatin, Chemistry, Psychiatry and Mental Health, Child, Preschool, Female, Original Article, Chromosomes, Human, Pair 16/genetics, Megalencephaly/genetics, Chromosome Deletion, Autistic Disorder/genetics, Molecular Biology, Cellular and Molecular Neuroscience, Human, Rare cancers Radboud Institute for Health Sciences [Radboudumc 9], Adult, Adolescent, DNA Copy Number Variations, Locus (genetics), DNA Copy Number Variations/genetics, Biology, Aged, Autistic Disorder, Chromosomes, Human, Pair 16, Humans, Infant, Intellectual Disability, Megalencephaly, Obesity, Chromosomes, Fluorescence, Chromatin/metabolism, 03 medical and health sciences, medicine, Preschool, Gene, Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7], Pair 16, medicine.disease, Intellectual Disability/genetics, Autism Spectrum Disorder/genetics, 030104 developmental biology, Human medicine, Chromosome Mapping/methods, Fluorescence in situ hybridization
Abstract

Contains fulltext : 174530.pdf (Publisher’s version ) (Open Access) Copy number variants (CNVs) are major contributors to genomic imbalance disorders. Phenotyping of 137 unrelated deletion and reciprocal duplication carriers of the distal 16p11.2 220 kb BP2-BP3 interval showed that these rearrangements are associated with autism spectrum disorders and mirror phenotypes of obesity/underweight and macrocephaly/microcephaly. Such phenotypes were previously associated with rearrangements of the non-overlapping proximal 16p11.2 600 kb BP4-BP5 interval. These two CNV-prone regions at 16p11.2 are reciprocally engaged in complex chromatin looping, as successfully confirmed by 4C-seq, fluorescence in situ hybridization and Hi-C, as well as coordinated expression and regulation of encompassed genes. We observed that genes differentially expressed in 16p11.2 BP4-BP5 CNV carriers are concomitantly modified in their chromatin interactions, suggesting that disruption of chromatin interplays could participate in the observed phenotypes. We also identified cis- and trans-acting chromatin contacts to other genomic regions previously associated with analogous phenotypes. For example, we uncovered that individuals with reciprocal rearrangements of the trans-contacted 2p15 locus similarly display mirror phenotypes on head circumference and weight. Our results indicate that chromosomal contacts' maps could uncover functionally and clinically related genes.

Published
2015

Catalog

Books, media, physical & digital resources
See catalog results