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2. List of contributors

Author

Agatemor, Christian, primary, Alisson-Silva, Frederico, additional, Allman, Sarah A., additional, Ardá, Ana, additional, Barone, Daniela, additional, Crost, Emmanuelle H., additional, Cunningham, Stephen, additional, Cutine, Anabela M., additional, de-Freitas-Junior, Julio C.M., additional, Dias, Wagner B., additional, Dorris, Emma, additional, Fadda, Elisa, additional, Ferreira, Carlos R., additional, Flannery, Andrea, additional, Franconetti, Antonio, additional, Gerlach, Jared Q., additional, Gill, Satbir Kaur, additional, Gómez, Marcos, additional, Ha, Lisa, additional, Hickey, Rita M., additional, Jiménez-Barbero, Jesús, additional, Joshi, Lokesh, additional, Juge, Nathalie, additional, Jukes, Margaret, additional, Kilcoyne, Michelle, additional, Lane, Jonathan A., additional, Latousakis, Dimitrios, additional, Li, Ting, additional, Liu, Yang, additional, Loponte, Hector F.B.R., additional, Makshakova, Olga, additional, Mann, Matthew D., additional, Mariño, Karina V., additional, Muthiah, Keerthana, additional, Oommen, Anup Mammen, additional, O’Gara, James P., additional, Osman, Adam, additional, Pavão, Mauro S.G., additional, Perez, Serge, additional, Poveda, Ana, additional, Rossignol, Francis, additional, Rudnicka, Karolina, additional, Santos, Ronan C., additional, Schwetz, Tara A., additional, Tabak, Lawrence A., additional, Teixeira, Felipe C.O.B., additional, Todeschini, Adriane R., additional, van Sinderen, Douwe, additional, Vasconcelos-dos-Santos, Andréia, additional, Walsh, Clodagh, additional, Wang, Xinyue, additional, and Yarema, Kevin J., additional

Published
2024
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7. CIAO1 and MMS19 deficiency: A lethal neurodegenerative phenotype caused by cytosolic Fe-S cluster protein assembly disorders

Author

van Karnebeek, Clara D.M., Tarailo-Graovac, Maja, Leen, René, Meinsma, Rutger, Correard, Solenne, Jansen-Meijer, Judith, Prykhozhij, Sergey V., Pena, Izabella A., Ban, Kevin, Schock, Sarah, Saxena, Vishal, Pras-Raves, Mia L., Drögemöller, Britt I., Grootemaat, Anita E., van der Wel, Nicole N., Dobritzsch, Doreen, Roseboom, Winfried, Schomakers, Bauke V., Jaspers, Yorrick R.J., Zoetekouw, Lida, Roelofsen, Jeroen, Ferreira, Carlos R., van der Lee, Robin, Ross, Colin J., Kochan, Jakub, McIntyre, Rebecca L., van Klinken, Jan B., van Weeghel, Michel, Kramer, Gertjan, Weschke, Bernhard, Labrune, Philippe, Willemsen, Michèl A., Riva, Daria, Garavaglia, Barbara, Moeschler, John B., Filiano, James J., Ekker, Marc, Berman, Jason N., Dyment, David, Vaz, Frédéric M., Wasserman, Wyeth W., Houtkooper, Riekelt H., and van Kuilenburg, André B.P.

Published
2024
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9. Expanding the genetics and phenotypes of ocular congenital cranial dysinnervation disorders

Author

Abarca-Barriga, Hugo, Al-Haddad, Christiane, Berman, Jeffrey L., Bothun, Erick D., Capasso, Jenina, Chacon-Camacho, Oscar Francisco, Chang, Lan, Christiansen, Stephen P., Ciccarelli, Maria Laura, Cordonnier, Monique, Cox, Gerald F., Curry, Cynthia J., Dagi, Linda R., Lee Dahm, Thomas, David, Karen L., Davitt, Bradley V., De Berardinis, Teresa, Demer, Joseph L., Désir, Julie, D’Esposito, Fabiana, Drack, Arlene V., Eggenberger, Eric, Elder, James E., Elliott, Alexandra T., Epley, K. David, Feldman, Hagit Baris, Ferreira, Carlos R., Flaherty, Maree P., Fulton, Anne B., Gerth-Kahlert, Christina, Gottlob, Irene, Grill, Stephen, Halliday, Dorothy J., Hanisch, Frank, Hay, Eleanor, Heidary, Gena, Holder, Christopher, Horton, Jonathan C., Iannaccone, Alessandro, Isenberg, Sherwin J., Johnston, Suzanne C., Kahana, Alon, Katowitz, James A., Kazlas, Melanie, Kerr, Natalie C., Kimonis, Virginia, Ko, Melissa W., Koc, Feray, Larsen, Dorte Ancher, Lay-Son, Guillermo, Ledoux, Danielle M., Levin, Alex V., Levy, Richard L., Lyons, Christopher J., Mackey, David A., Magli, Adriano, Mantagos, Iason S., Marti, Candice, Maystadt, Isabelle, McKenzie, Fiona, Menezes, Manoj P., Mikail, Claudia N., Miller, David T., Miller, Kathryn Bisceglia, Mills, Monte D., Miyana, Kaori, Moller, H.U., Mullineaux, Lisa, Nishimura, Julie K., Noble, A. Gwendolyn, Pandey, Pramod Kumar, Pavone, Piero, Penzien, Johann, Petersen, Robert, Phalen, James A., Poduri, Annapurna, Polo, Claudia R., Prasov, Lev, Ramos, Feliciano J., Ramos-Caceres, Maria, Robb, Richard M., Rossillion, Béatrice, Sahin, Mustafa, Singer, Harvey S., Smith, Lois E.H., Sorkin, Jeffrey A., Soul, Janet S., Staffieri, Sandra E., Stalker, Heather J., Stasheff, Steven F., Strassberg, Sonya, Strominger, Mitchell B., Taranath, Deepa Ajay, Thomas, Ioan Talfryn, Traboulsi, Elias I., Ugrin, Maria Cristina, VanderVeen, Deborah K., Vincent, Andrea L., Vogel G, Marlene C., Wabbels, Bettina, Wong, Agnes M.F., Woods, C. Geoffrey, Wu, Carolyn, Yang, Edward, Yeung, Alison, Young, Terri L., Zenteno, Juan C., Zubcov-Iwantscheff, Alexandra A., Zwaan, Johan, Jurgens, Julie A., Barry, Brenda J., Chan, Wai-Man, MacKinnon, Sarah, Whitman, Mary C., Matos Ruiz, Paola M., Pratt, Brandon M., England, Eleina M., Pais, Lynn, Lemire, Gabrielle, Groopman, Emily, Glaze, Carmen, Russell, Kathryn A., Singer-Berk, Moriel, Di Gioia, Silvio Alessandro, Lee, Arthur S., Andrews, Caroline, Shaaban, Sherin, Wirth, Megan M., Bekele, Sarah, Toffoloni, Melissa, Bradford, Victoria R., Foster, Emma E., Berube, Lindsay, Rivera-Quiles, Cristina, Mensching, Fiona M., Sanchis-Juan, Alba, Fu, Jack M., Wong, Isaac, Zhao, Xuefang, Wilson, Michael W., Weisburd, Ben, Lek, Monkol, Brand, Harrison, Talkowski, Michael E., MacArthur, Daniel G., O’Donnell-Luria, Anne, Robson, Caroline D., Hunter, David G., and Engle, Elizabeth C.

Published
2024
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12. Simple Tests and Routine Chemistry

Author

Ferreira, Carlos R., Blau, Nenad, Blau, Nenad, editor, Dionisi Vici, Carlo, editor, Ferreira, Carlos R., editor, Vianey-Saban, Christine, editor, and van Karnebeek, Clara D. M., editor

Published
2022
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17. Identification of potential non-invasive biomarkers in diastrophic dysplasia

Author

Paganini, Chiara, Carroll, Ricki S., Gramegna Tota, Chiara, Schelhaas, Andrea J., Leone, Alessandra, Duker, Angela L., O'Connell, David A., Coghlan, Ryan F., Johnstone, Brian, Ferreira, Carlos R., Peressini, Sabrina, Albertini, Riccardo, Forlino, Antonella, Bonafé, Luisa, Campos-Xavier, Ana Belinda, Superti-Furga, Andrea, Zankl, Andreas, Rossi, Antonio, and Bober, Michael B.

Published
2023
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18. An international classification of inherited metabolic disorders (ICIMD).

Author

Ferreira, Carlos R, Rahman, Shamima, Keller, Markus, Zschocke, Johannes, and ICIMD Advisory Group

Subjects
ICIMD Advisory Group, Humans, Metabolism, Inborn Errors, International Classification of Diseases, ICIMD, classification, inherited metabolic disorders, ontology, Genetics, Clinical Research, Clinical Sciences, Genetics & Heredity
Abstract

Several initiatives at establishing a classification of inherited metabolic disorders have been published previously, some focusing on pathomechanisms, others on clinical manifestations, while yet another attempted a simplified approach of a comprehensive nosology. Some of these classifications suffered from shortcomings, such as lack of a mechanism for continuous update in light of a rapidly evolving field, or lack of widespread input from the metabolic community at large. Our classification-the International Classification of Inherited Metabolic Disorders, or International Classification of Inborn Metabolic Disorders (ICIMD)-includes 1450 disorders, and differs from prior approaches in that it benefited from input by a large number of experts in the field, and was endorsed by major metabolic societies around the globe. Several criteria such as pathway involvement and pathomechanisms were considered. The main purpose of the hierarchical, group-based approach of the ICIMD is an improved understanding of the interconnections between many individual conditions that may share functional, clinical, and diagnostic features. The ICIMD aims to include any primary genetic condition in which alteration of a biochemical pathway is intrinsic to specific biochemical, clinical, and/or pathophysiological features. As new disorders are discovered, we will seek the opinion of experts in the advisory board prior to inclusion in the appropriate group of the ICIMD, thus guaranteeing the continuing relevance of this classification via regular curation and expert advice.

Published
2021

21. Cornelia de Lange syndrome in diverse populations

Author

Dowsett, Leah, Porras, Antonio R, Kruszka, Paul, Davis, Brandon, Hu, Tommy, Honey, Engela, Badoe, Eben, Thong, Meow‐Keong, Leon, Eyby, Girisha, Katta M, Shukla, Anju, Nayak, Shalini S, Shotelersuk, Vorasuk, Megarbane, Andre, Phadke, Shubha, Sirisena, Nirmala D, Dissanayake, Vajira HW, Ferreira, Carlos R, Kisling, Monisha S, Tanpaiboon, Pranoot, Uwineza, Annette, Mutesa, Leon, Tekendo‐Ngongang, Cedrik, Wonkam, Ambroise, Fieggen, Karen, Batista, Leticia Cassimiro, Moretti‐Ferreira, Danilo, Stevenson, Roger E, Prijoles, Eloise J, Everman, David, Clarkson, Kate, Worthington, Jessica, Kimonis, Virginia, Hisama, Fuki, Crowe, Carol, Wong, Paul, Johnson, Kisha, Clark, Robin D, Bird, Lynne, Masser‐Frye, Diane, McDonald, Marie, Willems, Patrick, Roeder, Elizabeth, Saitta, Sulgana, Anyane‐Yeoba, Kwame, Demmer, Laurie, Hamajima, Naoki, Stark, Zornitza, Gillies, Greta, Hudgins, Louanne, Dave, Usha, Shalev, Stavit, Siu, Victoria, Gupta, Neerja, Kabra, Madhulika, Ades, Ann, Dubbs, Holly, Raible, Sarah, Kaur, Maninder, Salzano, Emanuela, Jackson, Laird, Deardorff, Matthew, Kline, Antonie, Summar, Marshall, Muenke, Maximilian, Linguraru, Marius George, and Krantz, Ian D

Subjects
Biological Sciences, Biomedical and Clinical Sciences, Genetics, Brain Disorders, Rare Diseases, Clinical Research, Intellectual and Developmental Disabilities (IDD), Pediatric, Neurosciences, Congenital, Abnormalities, Multiple, Adolescent, Adult, Cell Cycle Proteins, Child, Child, Preschool, Chondroitin Sulfate Proteoglycans, Chromosomal Proteins, Non-Histone, De Lange Syndrome, Face, Female, Humans, Image Processing, Computer-Assisted, Infant, Infant, Newborn, Intellectual Disability, Male, Mutation, Phenotype, Racial Groups, Young Adult, CdLS, Cornelia de Lange syndrome, diverse populations, facial analysis technology, NIPBL, underrepresented minorities, Clinical Sciences, Clinical sciences
Abstract

Cornelia de Lange syndrome (CdLS) is a dominant multisystemic malformation syndrome due to mutations in five genes-NIPBL, SMC1A, HDAC8, SMC3, and RAD21. The characteristic facial dysmorphisms include microcephaly, arched eyebrows, synophrys, short nose with depressed bridge and anteverted nares, long philtrum, thin lips, micrognathia, and hypertrichosis. Most affected individuals have intellectual disability, growth deficiency, and upper limb anomalies. This study looked at individuals from diverse populations with both clinical and molecularly confirmed diagnoses of CdLS by facial analysis technology. Clinical data and images from 246 individuals with CdLS were obtained from 15 countries. This cohort included 49% female patients and ages ranged from infancy to 37 years. Individuals were grouped into ancestry categories of African descent, Asian, Latin American, Middle Eastern, and Caucasian. Across these populations, 14 features showed a statistically significant difference. The most common facial features found in all ancestry groups included synophrys, short nose with anteverted nares, and a long philtrum with thin vermillion of the upper lip. Using facial analysis technology we compared 246 individuals with CdLS to 246 gender/age matched controls and found that sensitivity was equal or greater than 95% for all groups. Specificity was equal or greater than 91%. In conclusion, we present consistent clinical findings from global populations with CdLS while demonstrating how facial analysis technology can be a tool to support accurate diagnoses in the clinical setting. This work, along with prior studies in this arena, will assist in earlier detection, recognition, and treatment of CdLS worldwide.

Published
2019

25. Ocular findings in Jansen metaphyseal chondrodysplasia.

Author

Obiezu, Fiona, Magone De Quadros Costa, M Teresa, Huryn, Laryssa A, Pan, Kristen, Almpani, Konstantinia, Ninan, Anisha, Roszko, Kelly L, Weinstein, Lee S, Gafni, Rachel I, Ferreira, Carlos R, Lee, Janice, Collins, Michael T, and Jha, Smita

Subjects
COLOR blindness, SCOTOMA, OPTICAL coherence tomography, BONE growth, NEURONS, VISUAL fields, RETINAL ganglion cells
Abstract

Jansen metaphyseal chondrodysplasia (JMC) is an ultra-rare disorder caused by germline heterozygous PTHR1 variants resulting in constitutive activation of parathyroid hormone type 1 receptor. A description of ocular manifestations of the disease is lacking. Six patients with JMC underwent a detailed ophthalmic evaluation, spectral-domain optical coherence tomography (OCT), visual field testing, and craniofacial CT scans. Five of 6 patients had good visual acuity. All patients had widely spaced eyes; 5/6 had downslanted palpebral fissures. One patient had proptosis, and another had bilateral ptosis. Two patients had incomplete closure of the eyelids (lagophthalmos), one had a history of progressive right facial nerve palsy with profuse epiphora, while the second had advanced optic nerve atrophy with corresponding retinal nerve fiber layer (RNFL) thinning on OCT and significant bilateral optic canal narrowing on CT scan. Additionally, this patient also had central visual field defects and abnormal color vision. A third patient had normal visual acuity, subtle temporal pallor of the optic nerve head, normal average RNFL, but decreased temporal RNFL and retinal ganglion cell layer analysis (GCA) on OCT. GCA was decreased in 4/6 patients indicating a subclinical optic nerve atrophic process. None of the patients had glaucoma or high myopia. These data represent the first comprehensive report of ophthalmic findings in JMC. Patients with JMC have significant eye findings associated with optic canal narrowing due to extensive skull base dysplastic bone overgrowth that appear to be more prevalent and pronounced with age. Progressive optic neuropathy from optic canal narrowing may be a feature of JMC, and OCT GCA can serve as a useful biomarker for progression in the setting of optic canal narrowing. We suggest that patients with JMC should undergo regular ophthalmic examination including color vision, OCT, visual field testing, orbital, and craniofacial imaging. Lay Summary: Jansen metaphyseal chondrodysplasia (JMC) is an ultra-rare disorder caused by overactivity of the parathyroid hormone type 1 receptor, a receptor that is important for regulating bone development. Some patients report eye problems, but these have not been well-described. We therefore performed extensive eye examinations in 6 individuals with JMC. One had progressive right-sided facial paralysis associated with eye-tearing and dryness. A second individual had decreased central vision. Using optical coherence tomography (OCT), a method which takes detailed pictures of the retina, we found thinning of the retina's nerve layers (RNFL). Computed tomography (CT) of the skull showed narrowing of the bony canal through which the optic nerve passes. A third individual had normal vision but RNFL thinning just on the sides. Analysis of ganglion cells, the nerve cells carrying signals from the retina to the brain, showed localized deterioration of the optic nerve; skull CT also revealed optic canal narrowing. These findings suggest that JMC is associated with progressive damage to the optic nerve. Thus, patients with JMC would benefit from regular eye exams including OCT and visual field testing, in addition to routine imaging. Graphical Abstract [ABSTRACT FROM AUTHOR]

Published
2024
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26. DTYMK is essential for genome integrity and neuronal survival

Author

Vanoevelen, Jo M., Bierau, Jörgen, Grashorn, Janine C., Lambrichs, Ellen, Kamsteeg, Erik-Jan, Bok, Levinus A., Wevers, Ron A., van der Knaap, Marjo S., Bugiani, Marianna, Frisk, Junmei Hu, Colnaghi, Rita, O’Driscoll, Mark, Hellebrekers, Debby M. E. I., Rodenburg, Richard, Ferreira, Carlos R., Brunner, Han G., van den Wijngaard, Arthur, Abdel-Salam, Ghada M. H., Wang, Liya, and Stumpel, Constance T. R. M.

Published
2022
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27. Pilot study to evaluate the safety and effectiveness of etidronate treatment for arterial calcification due to deficiency of CD73 (ACDC)

Author

Ferrante, Elisa A, primary, Cudrici, Cornelia D, additional, Rashidi, Mahmood, additional, Fu, Yi-Ping, additional, Huffstutler, Rebecca, additional, Carney, Katherine, additional, Chen, Marcus Y, additional, St Hilaire, Cynthia, additional, Smith, Kevin, additional, Bagheri, Hadi, additional, Katz, James D, additional, Ferreira, Carlos R, additional, Gahl, William A, additional, Boehm, Manfred, additional, and Brofferio, Alessandra, additional

Published
2024
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28. Quantitative analysis of the natural history of prolidase deficiency: description of 17 families and systematic review of published cases

Author

Rossignol, Francis, Duarte Moreno, Marvid S., Benoist, Jean-François, Boehm, Manfred, Bourrat, Emmanuelle, Cano, Aline, Chabrol, Brigitte, Cosson, Claudine, Díaz, José Luís Dapena, D’Harlingue, Arthur, Dimmock, David, Freeman, Alexandra F., García, María Tallón, Garganta, Cheryl, Goerge, Tobias, Halbach, Sara S., de Laffolie, Jan, Lam, Christina T., Martin, Ludovic, Martins, Esmeralda, Meinhardt, Andrea, Melki, Isabelle, Ombrello, Amanda K., Pérez, Noémie, Quelhas, Dulce, Scott, Anna, Slavotinek, Anne M., Soares, Ana Rita, Stein, Sarah L., Süßmuth, Kira, Thies, Jenny, Ferreira, Carlos R., and Schiff, Manuel

Published
2021
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31. CIAO1 and MMS19 de fi ciency : A lethal neurodegenerative phenotype caused by cytosolic Fe-S cluster protein assembly disorders

Author

van Karnebeek, Clara D. M., Tarailo-Graovac, Maja, Leen, Rene, Meinsma, Rutger, Correard, Solenne, Jansen-Meijer, Judith, Prykhozhij, Sergey V., Pena, Izabella A., Ban, Kevin, Schock, Sarah, Saxena, Vishal, Pras-Raves, Mia L., Drogemoller, Britt I., Grootemaat, Anita E., van der Wel, Nicole N., Dobritzsch, Doreen, Roseboom, Winfried, Schomakers, Bauke V., Jaspers, Yorrick R. J., Zoetekouw, Lida, Roelofsen, Jeroen, Ferreira, Carlos R., van der Lee, Robin, Ross, Colin J., Kochan, Jakub, McIntyre, Rebecca L., van Klinken, Jan B., van Weeghel, Michel, Kramer, Gertjan, Weschke, Bernhard, Labrune, Philippe, Willemsen, Michel A., Riva, Daria, Garavaglia, Barbara, Moeschler, John B., Filiano, James J., Ekker, Marc, Berman, Jason N., Dyment, David, Vaz, Frederic M., Wassermann, Wyeth W., Houtkooper, Riekelt H., van Kuilenburg, Andre B. P., van Karnebeek, Clara D. M., Tarailo-Graovac, Maja, Leen, Rene, Meinsma, Rutger, Correard, Solenne, Jansen-Meijer, Judith, Prykhozhij, Sergey V., Pena, Izabella A., Ban, Kevin, Schock, Sarah, Saxena, Vishal, Pras-Raves, Mia L., Drogemoller, Britt I., Grootemaat, Anita E., van der Wel, Nicole N., Dobritzsch, Doreen, Roseboom, Winfried, Schomakers, Bauke V., Jaspers, Yorrick R. J., Zoetekouw, Lida, Roelofsen, Jeroen, Ferreira, Carlos R., van der Lee, Robin, Ross, Colin J., Kochan, Jakub, McIntyre, Rebecca L., van Klinken, Jan B., van Weeghel, Michel, Kramer, Gertjan, Weschke, Bernhard, Labrune, Philippe, Willemsen, Michel A., Riva, Daria, Garavaglia, Barbara, Moeschler, John B., Filiano, James J., Ekker, Marc, Berman, Jason N., Dyment, David, Vaz, Frederic M., Wassermann, Wyeth W., Houtkooper, Riekelt H., and van Kuilenburg, Andre B. P.

Abstract

Purpose: The functionality of many cellular proteins depends on cofactors; yet, they have only been implicated in a minority of Mendelian diseases. Here, we describe the first 2 inherited disorders of the cytosolic iron-sulfur protein assembly system. Methods: Genetic testing via genome sequencing was applied to identify the underlying disease cause in 3 patients with microcephaly, congenital brain malformations, progressive developmental and neurologic impairments, recurrent infections, and a fatal outcome. Studies in patient-derived skin fibroblasts and zebrafish models were performed to investigate the biochemical and cellular consequences. Results: Metabolic analysis showed elevated uracil and thymine levels in body fluids but no pathogenic variants in DPYD, encoding dihydropyrimidine dehydrogenase. Genome sequencing identified compound heterozygosity in 2 patients for missense variants in CIAO1, encoding cytosolic iron-sulfur assembly component 1, and homozygosity for an in-frame 3-nucleotide deletion in MMS19, encoding the MMS19 homolog, cytosolic iron-sulfur assembly component, in the third patient. Profound alterations in the proteome, metabolome, and lipidome were observed in patient-derived fibroblasts. We confirmed the detrimental effect of deficiencies in CIAO1 and MMS19 in zebrafish models. Conclusion: A general failure of cytosolic and nuclear iron-sulfur protein maturation caused pleiotropic effects. The critical function of the cytosolic iron-sulfur protein assembly machinery for antiviral host defense may well explain the recurrent severe infections occurring in our patients. (c) 2024 The Authors. Published by Elsevier Inc. on behalf of American College of Medical Genetics and Genomics. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Published
2024
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32. Biallelic variants in KYNU cause a multisystemic syndrome with hand hyperphalangism

Author

Ehmke, Nadja, Cusmano-Ozog, Kristina, Koenig, Rainer, Holtgrewe, Manuel, Nur, Banu, Mihci, Ercan, Babcock, Holly, Gonzaga-Jauregui, Claudia, Overton, John D., Xiao, Jing, Martinez, Ariel F., Muenke, Maximilian, Balzer, Alexander, Jochim, Judith, El Choubassi, Naji, Fischer-Zirnsak, Björn, Huber, Céline, Kornak, Uwe, Elsea, Sarah H., Cormier-Daire, Valérie, and Ferreira, Carlos R.

Published
2020
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37. Defining the clinical phenotype of Saul–Wilson syndrome

Author

Ferreira, Carlos R., Zein, Wadih M., Huryn, Laryssa A., Merker, Andrea, Berger, Seth I., Wilson, William G., Tiller, George E., Wolfe, Lynne A., Merideth, Melissa, Carvalho, Daniel R., Duker, Angela L., Bratke, Heiko, Haug, Marte Gjøl, Rohena, Luis, Hove, Hanne B., Xia, Zhi-Jie, Ng, Bobby G., Freeze, Hudson H., Gabriel, Melissa, Russi, Alvaro H. Serrano, Brick, Lauren, Kozenko, Mariya, Earl, Dawn L., Tham, Emma, Nishimura, Gen, Phillips, III, John A., Gahl, William A., Hamid, Rizwan, Jackson, Andrew P., Grigelioniene, Giedre, and Bober, Michael B.

Published
2020
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38. Expanding the clinical and molecular characteristics of PIGT-CDG, a disorder of glycosylphosphatidylinositol anchors

Author

Lam, Christina, Golas, Gretchen A, Davids, Mariska, Huizing, Marjan, Kane, Megan S, Krasnewich, Donna M, Malicdan, May Christine V, Adams, David R, Markello, Thomas C, Zein, Wadih M, Gropman, Andrea L, Lodish, Maya B, Stratakis, Constantine A, Maric, Irina, Rosenzweig, Sergio D, Baker, Eva H, Ferreira, Carlos R, Danylchuk, Noelle R, Kahler, Stephen, Garnica, Adolfo D, Schaefer, G Bradley, Boerkoel, Cornelius F, Gahl, William A, and Wolfe, Lynne A

Subjects
Biological Sciences, Biomedical and Clinical Sciences, Genetics, Congenital Structural Anomalies, Clinical Research, Brain Disorders, Intellectual and Developmental Disabilities (IDD), Pediatric, 2.1 Biological and endogenous factors, Aetiology, Congenital, Acyltransferases, Child, Developmental Disabilities, Fibroblasts, Frameshift Mutation, Glycosylphosphatidylinositols, Heterozygote, Humans, Muscle Hypotonia, Mutation, Missense, Skin, PIGT-CDG, Congenital disorder of glycosylation, Glycosylphosphatidylinositol anchor, Phenotype, Flow cytometry, Exome, Clinical Sciences, Genetics & Heredity, Clinical sciences
Abstract

PIGT-CDG, an autosomal recessive syndromic intellectual disability disorder of glycosylphosphatidylinositol (GPI) anchors, was recently described in two independent kindreds [Multiple Congenital Anomalies-Hypotonia-Seizures Syndrome 3 (OMIM, #615398)]. PIGT encodes phosphatidylinositol-glycan biosynthesis class T, a subunit of the heteropentameric transamidase complex that facilitates the transfer of GPI to proteins. GPI facilitates attachment (anchoring) of proteins to cell membranes. We describe, at ages 7 and 6 years, two children of non-consanguineous parents; they had hypotonia, severe global developmental delay, and intractable seizures along with endocrine, ophthalmologic, skeletal, hearing, and cardiac anomalies. Exome sequencing revealed that both siblings had compound heterozygous variants in PIGT (NM_015937.5), i.e., c.918dupC, a novel duplication leading to a frameshift, and c.1342C > T encoding a previously described missense variant. Flow cytometry studies showed decreased surface expression of GPI-anchored proteins on granulocytes, consistent with findings in previous cases. These siblings further delineate the clinical spectrum of PIGT-CDG, reemphasize the neuro-ophthalmologic presentation, clarify the endocrine features, and add hypermobility, low CSF albumin quotient, and hearing loss to the phenotypic spectrum. Our results emphasize that GPI anchor-related congenital disorders of glycosylation (CDGs) should be considered in subjects with early onset severe seizure disorders and dysmorphic facial features, even in the presence of a normal carbohydrate-deficient transferrin pattern and N-glycan profiling. Currently available screening for CDGs will not reliably detect this family of disorders, and our case reaffirms that the use of flow cytometry and genetic testing is essential for diagnosis in this group of disorders.

Published
2015

42. Deep phenotyping of the neuroimaging and skeletal features in KBG syndrome: a study of 53 patients and review of the literature

Author

Peluso, Francesca, primary, Caraffi, Stefano G, additional, Contrò, Gianluca, additional, Valeri, Lara, additional, Napoli, Manuela, additional, Carboni, Giorgia, additional, Seth, Alka, additional, Zuntini, Roberta, additional, Coccia, Emanuele, additional, Astrea, Guja, additional, Bisgaard, Anne-Marie, additional, Ivanovski, Ivan, additional, Maitz, Silvia, additional, Brischoux-Boucher, Elise, additional, Carter, Melissa T, additional, Dentici, Maria Lisa, additional, Devriendt, Koenraad, additional, Bellini, Melissa, additional, Digilio, Maria Cristina, additional, Doja, Asif, additional, Dyment, David A, additional, Farholt, Stense, additional, Ferreira, Carlos R, additional, Wolfe, Lynne A, additional, Gahl, William A, additional, Gnazzo, Maria, additional, Goel, Himanshu, additional, Grønborg, Sabine Weller, additional, Hammer, Trine, additional, Iughetti, Lorenzo, additional, Kleefstra, Tjitske, additional, Koolen, David A, additional, Lepri, Francesca Romana, additional, Lemire, Gabrielle, additional, Louro, Pedro, additional, McCullagh, Gary, additional, Madeo, Simona F, additional, Milone, Annarita, additional, Milone, Roberta, additional, Nielsen, Jens Erik Klint, additional, Novelli, Antonio, additional, Ockeloen, Charlotte W., additional, Pascarella, Rosario, additional, Pippucci, Tommaso, additional, Ricca, Ivana, additional, Robertson, Stephen P, additional, Sawyer, Sarah, additional, Falkenberg Smeland, Marie, additional, Stegmann, Sander, additional, Stumpel, Constanze T, additional, Goel, Amy, additional, Taylor, Juliet M, additional, Barbuti, Domenico, additional, Soresina, Annarosa, additional, Bedeschi, Maria Francesca, additional, Battini, Roberta, additional, Cavalli, Anna, additional, Fusco, Carlo, additional, Iascone, Maria, additional, Van Maldergem, Lionel, additional, Venkateswaran, Sunita, additional, Zuffardi, Orsetta, additional, Vergano, Samantha, additional, Garavelli, Livia, additional, and Bayat, Allan, additional

Published
2023
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45. Clinical and biochemical footprints of inherited metabolic diseases. IX. Metabolic ear disease

Author

Bakhos, David, Blasco, Hélène, Galvin, John J, Ferreira, Carlos R, Blau, Nenad, University of Zurich, and Blau, Nenad

Subjects
1303 Biochemistry, Hearing Loss, Sensorineural, Endocrinology, Diabetes and Metabolism, 610 Medicine & health, Biochemistry, 1310 Endocrinology, Diabetes and Metabolism, 2712 Endocrinology, Diabetes and Metabolism, Endocrinology, Metabolic Diseases, 1311 Genetics, 10036 Medical Clinic, Ear, Inner, 1312 Molecular Biology, Genetics, Humans, Hearing Loss, Molecular Biology
Abstract

Damages to the ear are very diverse and can depend on the type of inherited metabolic diseases (IMD). Indeed, IMDs can affect all parts of the auditory system, from the outer ear to the central auditory process. We have identified 219 IMDs associated with various types of ear involvement which we classified into five groups according to the lesion site of the auditory system: congenital external ear abnormalities, acquired external ear abnormalities, middle ear involvement, inner ear or retrocochlear involvement, and unspecified hearing loss. This represents the ninth issue in a series of educational summaries providing a comprehensive and updated list of metabolic differential diagnoses according to system involvement.

Published
2022

50. Nosology of genetic skeletal disorders: 2023 revision

Author

Genetica Klinische Genetica, Unger, Sheila, Ferreira, Carlos R, Mortier, Geert R, Ali, Houda, Bertola, Débora R, Calder, Alistair, Cohn, Daniel H, Cormier-Daire, Valerie, Girisha, Katta M, Hall, Christine, Krakow, Deborah, Makitie, Outi, Mundlos, Stefan, Nishimura, Gen, Robertson, Stephen P, Savarirayan, Ravi, Sillence, David, Simon, Marleen, Sutton, V Reid, Warman, Matthew L, Superti-Furga, Andrea, Genetica Klinische Genetica, Unger, Sheila, Ferreira, Carlos R, Mortier, Geert R, Ali, Houda, Bertola, Débora R, Calder, Alistair, Cohn, Daniel H, Cormier-Daire, Valerie, Girisha, Katta M, Hall, Christine, Krakow, Deborah, Makitie, Outi, Mundlos, Stefan, Nishimura, Gen, Robertson, Stephen P, Savarirayan, Ravi, Sillence, David, Simon, Marleen, Sutton, V Reid, Warman, Matthew L, and Superti-Furga, Andrea

Published
2023

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