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2 results on '"Mark, Paul R"'

1. A recurrent 16p12.1 microdeletion supports a two-hit model for severe developmental delay

Author

Girirajan, Santhosh, Rosenfeld, Jill A, Cooper, Gregory M, Antonacci, Francesca, Siswara, Priscillia, Itsara, Andy, Vives, Laura, Walsh, Tom, McCarthy, Shane E, Baker, Carl, Mefford, Heather C, Kidd, Jeffrey M, Browning, Sharon R, Browning, Brian L, Dickel, Diane E, Levy, Deborah L, Ballif, Blake C, Platky, Kathryn, Farber, Darren M, Gowans, Gordon C, Wetherbee, Jessica J, Asamoah, Alexander, Weaver, David D, Mark, Paul R, Dickerson, Jennifer, Garg, Bhuwan P, Ellingwood, Sara A, Smith, Rosemarie, Banks, Valerie C, Smith, Wendy, McDonald, Marie T, Hoo, Joe J, French, Beatrice N, Hudson, Cindy, Johnson, John P, Ozmore, Jillian R, Moeschler, John B, Surti, Urvashi, Escobar, Luis F, El-Khechen, Dima, Gorski, Jerome L, Kussmann, Jennifer, Salbert, Bonnie, Lacassie, Yves, Biser, Alisha, McDonald-McGinn, Donna M, Zackai, Elaine H, Deardorff, Matthew A, Shaikh, Tamim H, Haan, Eric, Friend, Kathryn L, Fichera, Marco, Romano, Corrado, Gécz, Jozef, DeLisi, Lynn E, Sebat, Jonathan, King, Mary-Claire, Shaffer, Lisa G, and Eichler, Evan E

Subjects
Agricultural, Veterinary and Food Sciences, Biological Sciences, Bioinformatics and Computational Biology, Genetics, Agricultural Biotechnology, Neurosciences, Brain Disorders, Pediatric, Aetiology, 2.1 Biological and endogenous factors, Adult, Case-Control Studies, Child, Child, Preschool, Chromosome Deletion, Chromosomes, Human, Pair 16, Comparative Genomic Hybridization, Developmental Disabilities, Family, Gene Frequency, Humans, Infant, Models, Genetic, Oligonucleotide Array Sequence Analysis, Pedigree, Phenotype, Polymorphism, Single Nucleotide, Recurrence, Severity of Illness Index, Medical and Health Sciences, Developmental Biology, Agricultural biotechnology, Bioinformatics and computational biology
Abstract

We report the identification of a recurrent, 520-kb 16p12.1 microdeletion associated with childhood developmental delay. The microdeletion was detected in 20 of 11,873 cases compared with 2 of 8,540 controls (P = 0.0009, OR = 7.2) and replicated in a second series of 22 of 9,254 cases compared with 6 of 6,299 controls (P = 0.028, OR = 2.5). Most deletions were inherited, with carrier parents likely to manifest neuropsychiatric phenotypes compared to non-carrier parents (P = 0.037, OR = 6). Probands were more likely to carry an additional large copy-number variant when compared to matched controls (10 of 42 cases, P = 5.7 x 10(-5), OR = 6.6). The clinical features of individuals with two mutations were distinct from and/or more severe than those of individuals carrying only the co-occurring mutation. Our data support a two-hit model in which the 16p12.1 microdeletion both predisposes to neuropsychiatric phenotypes as a single event and exacerbates neurodevelopmental phenotypes in association with other large deletions or duplications. Analysis of other microdeletions with variable expressivity indicates that this two-hit model might be more generally applicable to neuropsychiatric disease.

Published
2010

2. Heterozygous Variants in KMT2E Cause a Spectrum of Neurodevelopmental Disorders and Epilepsy

Author

O'Donnell-Luria, Anne H, Pais, Lynn S, Faundes, Víctor, Wood, Jordan C, Sveden, Abigail, Luria, Victor, Abou Jamra, Rami, Accogli, Andrea, Amburgey, Kimberly, Anderlid, Britt Marie, Azzarello-Burri, Silvia, Basinger, Alice A, Bianchini, Claudia, Bird, Lynne M, Buchert, Rebecca, Carre, Wilfrid, Ceulemans, Sophia, Charles, Perrine, Cox, Helen, Culliton, Lisa, Currò, Aurora, Deciphering Developmental Disorders (DDD) Study, Demurger, Florence, Dowling, James J, Duban-Bedu, Benedicte, Dubourg, Christèle, Eiset, Saga Elise, Escobar, Luis F, Ferrarini, Alessandra, Haack, Tobias B, Hashim, Mona, Heide, Solveig, Helbig, Katherine L, Helbig, Ingo, Heredia, Raul, Héron, Delphine, Isidor, Bertrand, Jonasson, Amy R, Joset, Pascal, Keren, Boris, Kok, Fernando, Kroes, Hester Y, Lavillaureix, Alinoë, Lu, Xin, Maas, Saskia M, Maegawa, Gustavo HB, Marcelis, Carlo LM, Mark, Paul R, Masruha, Marcelo R, McLaughlin, Heather M, McWalter, Kirsty, Melchinger, Esther U, Mercimek-Andrews, Saadet, Nava, Caroline, Pendziwiat, Manuela, Person, Richard, Ramelli, Gian Paolo, Ramos, Luiza LP, Rauch, Anita, Reavey, Caitlin, Renieri, Alessandra, Rieß, Angelika, Sanchez-Valle, Amarilis, Sattar, Shifteh, Saunders, Carol, Schwarz, Niklas, Smol, Thomas, Srour, Myriam, Steindl, Katharina, Syrbe, Steffen, Taylor, Jenny C, Telegrafi, Aida, Thiffault, Isabelle, Trauner, Doris A, van der Linden, Helio, van Koningsbruggen, Silvana, Villard, Laurent, Vogel, Ida, Vogt, Julie, Weber, Yvonne G, Wentzensen, Ingrid M, Widjaja, Elysa, Zak, Jaroslav, Baxter, Samantha, Banka, Siddharth, and Rodan, Lance H

Subjects
Adult, Male, Heterozygote, Adolescent, Intellectual and Developmental Disabilities (IDD), Autism, global developmental delay, Haploinsufficiency, Neurodegenerative, H3K4 methylation, Medical and Health Sciences, Young Adult, Clinical Research, Deciphering Developmental Disorders (DDD) Study, Humans, 2.1 Biological and endogenous factors, Aetiology, Child, Preschool, Pediatric, Genetics & Heredity, Epilepsy, Neurosciences, Infant, Genetic Variation, Biological Sciences, neurodevelopmental disorder, Pedigree, KMT2E, Brain Disorders, DNA-Binding Proteins, Phenotype, epileptic encephalopathy, Mental Health, Neurodevelopmental Disorders, intellectual disability, Neurological, Female
Abstract

We delineate a KMT2E-related neurodevelopmental disorder on the basis of 38 individuals in 36 families. This study includes 31 distinct heterozygous variants in KMT2E (28 ascertained from Matchmaker Exchange and three previously reported), and four individuals with chromosome 7q22.2-22.23 microdeletions encompassing KMT2E (one previously reported). Almost all variants occurred de novo, and most were truncating. Most affected individuals with protein-truncating variants presented with mild intellectual disability. One-quarter of individuals met criteria for autism. Additional common features include macrocephaly, hypotonia, functional gastrointestinal abnormalities, and a subtle facial gestalt. Epilepsy was present in about one-fifth of individuals with truncating variants and was responsive to treatment with anti-epileptic medications in almost all. More than 70% of the individuals were male, and expressivity was variable by sex; epilepsy was more common in females and autism more common in males. The four individuals with microdeletions encompassing KMT2E generally presented similarly to those with truncating variants, but the degree of developmental delay was greater. The group of four individuals with missense variants in KMT2E presented with the most severe developmental delays. Epilepsy was present in all individuals with missense variants, often manifesting as treatment-resistant infantile epileptic encephalopathy. Microcephaly was also common in this group. Haploinsufficiency versus gain-of-function or dominant-negative effects specific to these missense variants in KMT2E might explain this divergence in phenotype, but requires independent validation. Disruptive variants in KMT2E are an under-recognized cause of neurodevelopmental abnormalities.

Published
2019

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