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Browsing by Author "Stevens, Cathy A."
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Item A dyadic approach to the delineation of diagnostic entities in clinical genomics(Cell Press, 2021-01-07) Biesecker, Leslie G.; Adam, Margaret P.; Alkuraya, Fowzan S.; Amemiya, Anne R.; Bamshad, Michael J.; Beck, Anita E.; Bennett, James T.; Bird, Lynne M.; Carey, John C.; Chung, Brian; Clark, Robin D.; Cox, Timothy C.; Curry, Cynthia; Palko Dinulos, Mary Beth; Dobyns, William B.; Giampietro, Philip F.; Girisha, Katta M.; Glass, Ian A.; Graham, John M., Jr.; Gripp, Karen W.; Haldeman-Englert, Chad R.; Hall, Bryan D.; Innes, A. Micheil; Kalish, Jennifer M.; Keppler-Noreuil, Kim M.; Kosaki, Kenjiro; Kozel, Beth A.; Mirzaa, Ghayda M.; Mulvihill, John J.; Nowaczyk, Malgorzata J.M.; Pagon, Roberta A.; Retterer, Kyle; Rope, Alan F.; Sanchez-Lara, Pedro A.; Seaver, Laurie H.; Shieh, Joseph T.; Slavotinek, Anne M.; Sobering, Andrew K.; Stevens, Cathy A.; Stevenson, David A.; Tan, Tiong Yang; Tan, Wen-Hann; Tsai, Anne C.; Weaver, David D.; Williams, Marc S.; Zackai, Elaine; Zarate, Yuri A.; Medical and Molecular Genetics, School of MedicineThe delineation of disease entities is complex, yet recent advances in the molecular characterization of diseases provide opportunities to designate diseases in a biologically valid manner. Here, we have formalized an approach to the delineation of Mendelian genetic disorders that encompasses two distinct but inter-related concepts: (1) the gene that is mutated and (2) the phenotypic descriptor, preferably a recognizably distinct phenotype. We assert that only by a combinatorial or dyadic approach taking both of these attributes into account can a unitary, distinct genetic disorder be designated. We propose that all Mendelian disorders should be designated as "GENE-related phenotype descriptor" (e.g., "CFTR-related cystic fibrosis"). This approach to delineating and naming disorders reconciles the complexity of gene-to-phenotype relationships in a simple and clear manner yet communicates the complexity and nuance of these relationships.Item Endocrine and Growth Abnormalities in 4H Leukodystrophy Caused by Variants in POLR3A, POLR3B, and POLR1C(The Endocrine Society, 2021) Pelletier, Félixe; Perrier, Stefanie; Cayami, Ferdy K.; Mirchi, Amytice; Saikali, Stephan; Tran, Luan T.; Ulrick, Nicole; Guerrero, Kether; Rampakakis, Emmanouil; van Spaendonk, Rosalina M. L.; Naidu, Sakkubai; Pohl, Daniela; Gibson, William T.; Demos, Michelle; Goizet, Cyril; Tejera-Martin, Ingrid; Potic, Ana; Fogel, Brent L.; Brais, Bernard; Sylvain, Michel; Sébire, Guillaume; Lourenço, Charles Marques; Bonkowsky, Joshua L.; Catsman-Berrevoets, Coriene; Pinto, Pedro S.; Tirupathi, Sandya; Strømme, Petter; de Grauw, Ton; Gieruszczak-Bialek, Dorota; Krägeloh-Mann, Ingeborg; Mierzewska, Hanna; Philippi, Heike; Rankin, Julia; Atik, Tahir; Banwell, Brenda; Benko, William S.; Blaschek, Astrid; Bley, Annette; Boltshauser, Eugen; Bratkovic, Drago; Brozova, Klara; Cimas, Icíar; Clough, Christopher; Corenblum, Bernard; Dinopoulos, Argirios; Dolan, Gail; Faletra, Flavio; Fernandez, Raymond; Fletcher, Janice; Garcia, Maria Eugenia; Gasparini, Paolo; Gburek-Augustat, Janina; Gonzalez Moron, Dolores; Hamati, Aline; Harting, Inga; Hertzberg, Christoph; Hill, Alan; Hobson, Grace M.; Innes, A. Micheil; Kauffman, Marcelo; Kirwin, Susan M.; Kluger, Gerhard; Kolditz, Petra; Kotzaeridou, Urania; La Piana, Roberta; Liston, Eriskay; McClintock, William; McEntagart, Meriel; McKenzie, Fiona; Melançon, Serge; Misbahuddin, Anjum; Suri, Mohnish; Monton, Fernando I.; Moutton, Sebastien; Murphy, Raymond P. J.; Nickel, Miriam; Onay, Hüseyin; Orcesi, Simona; Özkınay, Ferda; Patzer, Steffi; Pedro, Helio; Pekic, Sandra; Pineda Marfa, Mercedes; Pizzino, Amy; Plecko, Barbara; Poll-The, Bwee Tien; Popovic, Vera; Rating, Dietz; Rioux, Marie-France; Rodriguez Espinosa, Norberto; Ronan, Anne; Ostergaard, John R.; Rossignol, Elsa; Sanchez-Carpintero, Rocio; Schossig, Anna; Senbil, Nesrin; Sønderberg Roos, Laura K.; Stevens, Cathy A.; Synofzik, Matthis; Sztriha, László; Tibussek, Daniel; Timmann, Dagmar; Tonduti, Davide; van de Warrenburg, Bart P.; Vázquez-López, Maria; Venkateswaran, Sunita; Wasling, Pontus; Wassmer, Evangeline; Webster, Richard I.; Wiegand, Gert; Yoon, Grace; Rotteveel, Joost; Schiffmann, Raphael; van der Knaap, Marjo S.; Vanderver, Adeline; Martos-Moreno, Gabriel Á.; Polychronakos, Constantin; Wolf, Nicole I.; Bernard, Geneviève; Neurology, School of MedicineContext: 4H or POLR3-related leukodystrophy is an autosomal recessive disorder typically characterized by hypomyelination, hypodontia, and hypogonadotropic hypogonadism, caused by biallelic pathogenic variants in POLR3A, POLR3B, POLR1C, and POLR3K. The endocrine and growth abnormalities associated with this disorder have not been thoroughly investigated to date. Objective: To systematically characterize endocrine abnormalities of patients with 4H leukodystrophy. Design: An international cross-sectional study was performed on 150 patients with genetically confirmed 4H leukodystrophy between 2015 and 2016. Endocrine and growth abnormalities were evaluated, and neurological and other non-neurological features were reviewed. Potential genotype/phenotype associations were also investigated. Setting: This was a multicenter retrospective study using information collected from 3 predominant centers. Patients: A total of 150 patients with 4H leukodystrophy and pathogenic variants in POLR3A, POLR3B, or POLR1C were included. Main outcome measures: Variables used to evaluate endocrine and growth abnormalities included pubertal history, hormone levels (estradiol, testosterone, stimulated LH and FSH, stimulated GH, IGF-I, prolactin, ACTH, cortisol, TSH, and T4), and height and head circumference charts. Results: The most common endocrine abnormalities were delayed puberty (57/74; 77% overall, 64% in males, 89% in females) and short stature (57/93; 61%), when evaluated according to physician assessment. Abnormal thyroid function was reported in 22% (13/59) of patients. Conclusions: Our results confirm pubertal abnormalities and short stature are the most common endocrine features seen in 4H leukodystrophy. However, we noted that endocrine abnormalities are typically underinvestigated in this patient population. A prospective study is required to formulate evidence-based recommendations for management of the endocrine manifestations of this disorder.Item Response to Hamosh et al(Elsevier, 2021) Biesecker, Leslie G.; Adam, Margaret P.; Alkuraya, Fowzan S.; Amemiya, Anne R.; Bamshad, Michael J.; Beck, Anita E.; Bennett, James T.; Bird, Lynne M.; Carey, John C.; Chung, Brian; Clark, Robin D.; Cox, Timothy C.; Curry, Cynthia; Dinulos, Mary Beth Palko; Dobyns, William B.; Giampietro, Philip F.; Girisha, Katta M.; Glass, Ian A.; Graham, John M., Jr.; Gripp, Karen W.; Haldeman-Englert, Chad R.; Hall, Bryan D.; Innes, A. Micheil; Kalish, Jennifer M.; Keppler-Noreuil, Kim M.; Kosaki, Kenjiro; Kozel, Beth A.; Mirzaa, Ghayda M.; Mulvihill, John J.; Nowaczyk, Malgorzata J.M.; Pagon, Roberta A.; Retterer, Kyle; Rope, Alan F.; Sanchez-Lara, Pedro A.; Seaver, Laurie H.; Shieh, Joseph T.; Slavotinek, Anne M.; Sobering, Andrew K.; Stevens, Cathy A.; Stevenson, David A.; Tan, Tiong Yang; Tan, Wen-Hann; Tsai, Anne C.; Weaver, David D.; Williams, Marc S.; Zackai, Elaine; Zarate, Yuri A.; Medical and Molecular Genetics, School of Medicine