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Panis B, Vos EN, Barić I, Bosch AM, Brouwers MCGJ, Burlina A, Cassiman D, Coman DJ, Couce ML, Das AM, Demirbas D, Empain A, Gautschi M, Grafakou O, Grunewald S, Kingma SDK, Knerr I, Leão-Teles E, Möslinger D, Murphy E, Õunap K, Pané A, Paci S, Parini R, Rivera IA, Scholl-Bürgi S, Schwartz IVD, Sdogou T, Shakerdi LA, Skouma A, Stepien KM, Treacy EP, Waisbren S, Berry GT, Rubio-Gozalbo ME. Brain function in classic galactosemia, a galactosemia network (GalNet) members review. Front Genet 2024; 15:1355962. [PMID: 38425716 PMCID: PMC10902464 DOI: 10.3389/fgene.2024.1355962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/24/2024] [Indexed: 03/02/2024] Open
Abstract
Classic galactosemia (CG, OMIM #230400, ORPHA: 79,239) is a hereditary disorder of galactose metabolism that, despite treatment with galactose restriction, affects brain function in 85% of the patients. Problems with cognitive function, neuropsychological/social emotional difficulties, neurological symptoms, and abnormalities in neuroimaging and electrophysiological assessments are frequently reported in this group of patients, with an enormous individual variability. In this review, we describe the role of impaired galactose metabolism on brain dysfunction based on state of the art knowledge. Several proposed disease mechanisms are discussed, as well as the time of damage and potential treatment options. Furthermore, we combine data from longitudinal, cross-sectional and retrospective studies with the observations of specialist teams treating this disease to depict the brain disease course over time. Based on current data and insights, the majority of patients do not exhibit cognitive decline. A subset of patients, often with early onset cerebral and cerebellar volume loss, can nevertheless experience neurological worsening. While a large number of patients with CG suffer from anxiety and depression, the increased complaints about memory loss, anxiety and depression at an older age are likely multifactorial in origin.
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Affiliation(s)
- Bianca Panis
- Department of Pediatrics, MosaKids Children’s Hospital, Maastricht University Medical Centre, Maastricht, Netherlands
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- United for Metabolic Diseases (UMD), Amsterdam, Netherlands
| | - E. Naomi Vos
- Department of Pediatrics, MosaKids Children’s Hospital, Maastricht University Medical Centre, Maastricht, Netherlands
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- United for Metabolic Diseases (UMD), Amsterdam, Netherlands
- Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, Netherlands
- GROW School for Oncology and Reproduction, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
| | - Ivo Barić
- Department of Pediatrics, University Hospital Center Zagreb, Croatia, and School of Medicine, University of Zagreb, Zagreb, Croatia
| | - Annet M. Bosch
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- United for Metabolic Diseases (UMD), Amsterdam, Netherlands
- Department of Pediatrics, Division of Metabolic Diseases, Emma Children’s Hospital, Amsterdam University Medical Center, Amsterdam Gastroenterology Endocrinology Metabolism, Inborn Errors of Metabolism, Amsterdam, Netherlands
| | - Martijn C. G. J. Brouwers
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Department of Internal Medicine, Division of Endocrinology and Metabolic Disease, Maastricht University Medical Centre, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, Netherlands
| | - Alberto Burlina
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Division of Inherited Metabolic Diseases, Reference Centre Expanded Newborn Screening, University Hospital Padova, Padova, Italy
| | - David Cassiman
- Laboratory of Hepatology, Department of Chronic Diseases, Metabolism and Ageing, Faculty of Medicine, KU Leuven, Leuven, Belgium
| | - David J. Coman
- Queensland Children’s Hospital, Children’s Health Queensland, Brisbane, QLD, Australia
| | - María L. Couce
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Department of Pediatrics, Diagnosis and Treatment Unit of Congenital Metabolic Diseases, University Clinical Hospital of Santiago de Compostela, IDIS-Health Research Institute of Santiago de Compostela, CIBERER, RICORS Instituto Salud Carlos III, Santiago de Compostela, Spain
| | - Anibh M. Das
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Department of Paediatrics, Pediatric Metabolic Medicine, Hannover Medical School, Hannover, Germany
| | - Didem Demirbas
- Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Manton Center for Orphan Disease Research, Boston, MA, United States
| | - Aurélie Empain
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Department of Paediatrics, Metabolic and Nutrition Unit, Division of Endocrinology, Diabetes and Metabolism, University Hospital for Children Queen Fabiola, Bruxelles, Belgium
| | - Matthias Gautschi
- Department of Paediatrics, Institute of Clinical Chemistry, Inselspital, Bern University Hospital, Swiss Reference Centre for Inborn Errors of Metabolism, Site Bern, Division of Pediatric Endocrinology, Diabetes and Metabolism, University of Bern, Bern, Switzerland
| | - Olga Grafakou
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- IEM Clinic, Arch Makarios III Hospital, Nicosia, Cyprus
| | - Stephanie Grunewald
- Metabolic Unit Great Ormond Street Hospital and Institute for Child Health, University College London, London, United Kingdom
| | - Sandra D. K. Kingma
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Centre for Metabolic Diseases, University Hospital Antwerp, University of Antwerp, Antwerp, Belgium
| | - Ina Knerr
- National Centre for Inherited Metabolic Disorders, Children’s Health Ireland at Temple Street, University College Dublin, Dublin, Ireland
| | - Elisa Leão-Teles
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Reference Centre of Inherited Metabolic Diseases, Centro Hospitalar Universitário São João, Porto, Portugal
| | - Dorothea Möslinger
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Department of Paediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Elaine Murphy
- Charles Dent Metabolic Unit, National Hospital for Neurology and Neurosurgery (NHNN), London, United Kingdom
| | - Katrin Õunap
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Genetics and Personalized Medicine Clinic, Faculty of Medicine, Tartu University Hospital, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia
| | - Adriana Pané
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Endocrinology and Nutrition Department, Hospital Clínic de Barcelona, Centro de Investigación Biomédica en Red de la Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Sabrina Paci
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Inborn Errors of Metabolism, Clinical Department of Pediatrics, San Paolo Hospital - ASST Santi Paolo e Carlo, University of Milan, Milan, Italy
| | - Rossella Parini
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Rare Diseases Unit, Department of Internal Medicine, San Gerardo Hospital IRCCS, Monza, Italy
| | - Isabel A. Rivera
- iMed.ULisboa–Instituto de Investigação do Medicamento, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Sabine Scholl-Bürgi
- Department of Child and Adolescent Health, Division of Pediatrics I-Inherited Metabolic Disorders, Medical University Innsbruck, Innsbruck, Austria
| | - Ida V. D. Schwartz
- Medical Genetics Service, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil
| | - Triantafyllia Sdogou
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Newborn Screening Department, Institute of Child Health, Athens, Greece
| | - Loai A. Shakerdi
- Adult Metabolics/Genetics, National Centre for Inherited Metabolic Disorders, The Mater Misericordiae University Hospital, Dublin, Ireland
| | - Anastasia Skouma
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- Newborn Screening Department, Institute of Child Health, Athens, Greece
| | - Karolina M. Stepien
- Salford Royal Organisation, Northern Care Alliance NHS Foundation Trust, Salford, United Kingdom
| | - Eileen P. Treacy
- School of Medicine, Trinity College Dublin, National Rare Diseases Office, Mater Misericordiae University Hospital, Dublin, Ireland
| | - Susan Waisbren
- Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Manton Center for Orphan Disease Research, Boston, MA, United States
| | - Gerard T. Berry
- Division of Genetics and Genomics, Boston Children’s Hospital, Harvard Medical School, Manton Center for Orphan Disease Research, Boston, MA, United States
| | - M. Estela Rubio-Gozalbo
- Department of Pediatrics, MosaKids Children’s Hospital, Maastricht University Medical Centre, Maastricht, Netherlands
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member, Padova, Italy
- United for Metabolic Diseases (UMD), Amsterdam, Netherlands
- Department of Clinical Genetics, Maastricht University Medical Centre, Maastricht, Netherlands
- GROW School for Oncology and Reproduction, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, Netherlands
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Katler Q, Stepien KM, Paull N, Patel S, Adams M, Balci MC, Berry GT, Bosch AM, De La O A, Demirbas D, Edman J, Ficicioglu C, Goff M, Hacker S, Knerr I, Lancaster K, Li H, Mendelsohn BA, Nichols B, de Rezende Pinto WBV, Rocha JC, Rubio-Gozalbo ME, Saad-Naguib M, Scholl-Buergi S, Searcy S, de Souza PVS, Wittenauer A, Fridovich-Keil JL. A multinational study of acute and long-term outcomes of Type 1 galactosemia patients who carry the S135L (c.404C > T) variant of GALT. J Inherit Metab Dis 2022; 45:1106-1117. [PMID: 36093991 PMCID: PMC9643640 DOI: 10.1002/jimd.12556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/23/2022] [Accepted: 09/09/2022] [Indexed: 11/08/2022]
Abstract
Patients with galactosemia who carry the S135L (c.404C > T) variant of galactose-1-P uridylyltransferase (GALT), documented to encode low-level residual GALT activity, have been under-represented in most prior studies of outcomes in Type 1 galactosemia. What is known about the acute and long-term outcomes of these patients, therefore, is based on very limited data. Here, we present a study comparing acute and long-term outcomes of 12 patients homozygous for S135L, 25 patients compound heterozygous for S135L, and 105 patients homozygous for two GALT-null (G) alleles. This is the largest cohort of S135L patients characterized to date. Acute disease following milk exposure in the newborn period was common among patients in all 3 comparison groups in our study, as were long-term complications in the domains of speech, cognition, and motor outcomes. In contrast, while at least 80% of both GALT-null and S135L compound heterozygous girls and women showed evidence of an adverse ovarian outcome, prevalence was only 25% among S135L homozygotes. Further, all young women in this study with even one copy of S135L achieved spontaneous menarche; this is true for only about 33% of women with classic galactosemia. Overall, we observed that while most long-term outcomes trended milder among groups of patients with even one copy of S135L, many individual patients, either homozygous or compound heterozygous for S135L, nonetheless experienced long-term outcomes that were not mild. This was true despite detection by newborn screening and both early and life-long dietary restriction of galactose. This information should empower more evidence-based counseling for galactosemia patients with S135L.
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Affiliation(s)
- Quinton Katler
- Division of Reproductive Endocrinology and Infertility, Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia USA
| | - Karolina M. Stepien
- Adult Inherited Metabolic Diseases Department, Salford Royal Foundation NHS Trust, Salford, Greater Manchester, UK
| | - Nathan Paull
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia USA
| | - Sneh Patel
- Emory College, Emory University, Atlanta, Georgia USA
| | - Michael Adams
- UNC School of Medicine, Division of Pediatric Genetics and Metabolism, Chapel Hill, North Carolina USA
| | - Mehmet Cihan Balci
- Department of Pediatric Metabolic Disease, Istanbul Medical School, Fatihİstanbul, Turkey
| | - Gerard T. Berry
- Division of Genetics and Genomics, Department of Pediatrics, The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Annet M. Bosch
- Amsterdam UMC location University of Amsterdam, Emma Children’s Hospital, Department of Pediatrics, Division of Metabolic Diseases, Amsterdam Gastroenterology Endocrinology Metabolism, Meibergdreef 9, Amsterdam, the Netherlands
| | | | - Didem Demirbas
- Division of Genetics and Genomics, Department of Pediatrics, The Manton Center for Orphan Disease Research, Boston Children’s Hospital, Harvard Medical School, Boston, Massachusetts USA
| | - Julianna Edman
- Department of Pediatric Genetics, University of Illinois-Chicago, Chicago, Illinois USA
| | - Can Ficicioglu
- The Children’s Hospital of Philadelphia, Division of Human Genetics and Metabolism, Perelman School of Medicine at The University of Pennsylvania, Philadelphia, Pennsylvania USA
| | - Melanie Goff
- Division of Genetic and Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio USA
| | - Stephanie Hacker
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida USA
| | - Ina Knerr
- National Centre for Inherited Metabolic Disorders, Temple St. Children’s University Hospital, Dublin, Ireland
| | - Kristen Lancaster
- UNC School of Medicine, Division of Pediatric Genetics and Metabolism, Chapel Hill, North Carolina USA
| | - Hong Li
- Departments of Human Genetics and Pediatrics, Emory University School of Medicine, Atlanta, Georgia USA
| | - Bryce A. Mendelsohn
- Department of Genetics, Oakland Medical Center, Kaiser Permanente, Oakland, California USA
| | - Brandi Nichols
- Department of Clinical Nutrition, Arkansas Children’s Hospital, Little Rock, Arkansas USA
| | | | - Júlio César Rocha
- Nutrition & Metabolism, NOVA Medical School, Faculdade de Ciências Médicas, Universidade Nova de Lisboa Reference Centre of Inherited Metabolic Diseases, Centro Hospitalar Universitário de Lisboa Central, and Center for Health Technology and Services Research (CINTESIS), NOVA Medical School, Lisboa, Portugal
| | - M Estela Rubio-Gozalbo
- Department of Pediatrics, Department of Clinical Genetics, GROW-School for Oncology and Reproduction, European Reference Network for Hereditary Metabolic Disorders (MetabERN) member and United for Metabolic Diseases member, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Michael Saad-Naguib
- Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida USA
| | | | - Sarah Searcy
- Division of Genetic and Genomic Medicine, Nationwide Children’s Hospital, Columbus, Ohio USA
| | | | - Angela Wittenauer
- Department of Human Genetics, Emory University School of Medicine, Atlanta, Georgia USA
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Waisbren SE, Tran C, Demirbas D, Gubbels CS, Hsiao M, Daesety V, Berry GT. Transient developmental delays in infants with Duarte-2 variant galactosemia. Mol Genet Metab 2021; 134:132-138. [PMID: 34391645 DOI: 10.1016/j.ymgme.2021.07.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 07/19/2021] [Accepted: 07/23/2021] [Indexed: 11/23/2022]
Abstract
Duarte galactosemia is not classic galactosemia, but rather an example of biochemical variant galactosemia that results in approximately 25% residual activity of galactose-1-phosphate uridylyltransferase (GALT) enzyme. In contrast, classic galactosemia is associated with complete or near complete absence of GALT activity. While infants with classic galactosemia are placed on galactose-restricted diets to prevent the acute and long-term manifestations of their metabolic disorder, while individuals with Duarte variant galactosemia (Duarte-2 galactosemia) do not require diet therapy. The long-term complications that are seen in classic galactosemia such as cerebellar ataxia, and hypergonadotropic hypogonadism do not occur in Duarte-2 galactosemia. While Duarte galactosemia does not appear to be a metabolic disease, it may have an impact on early neurodevelopmental outcomes. This study examined developmental outcomes and the need for special services in individuals with Duarte-2 galactosemia in comparison to individuals with classic galactosemia. We performed a medical record review of individuals with GALT deficiency who were evaluated at Boston Children's Hospital and enrolled in our study of outcomes in galactosemia. This included 95 participants, 21 with Duarte-2 galactosemia and 73 with classic galactosemia. Duarte-2 participants had developmental test scores within the average range. However, 42% of subjects with Duarte-2 galactosemia had participated in early intervention and/or special education and 32% received speech therapy. Their pattern of strengths and weaknesses in cognitive/language/motor domains was similar to that noted in participants with classic galactosemia, albeit to a milder degree. The data indicate that in children with Duarte-2 variant galactosemia, the cognitive/language and motor skills were within normal limits with their cognitive/language skills developing earlier than their motor skills during their first year of life. A history of diet treatment was not related to the use of special services. These results suggest that Duarte-2 galactosemia increases the risk for early mild developmental delays irrespective of treatment history, which resolves over time, and highlights the need to further assess neurodevelopment in early infancy, in Duarte-2 galactosemia. As Duarte-2 galactosemia is not a bona fide biochemical genetic disease, we hypothesize that elements in the genomic space that include the GALT gene are responsible for a transient delay in language-related motor skills during early infancy.
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Affiliation(s)
- Susan E Waisbren
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America.
| | - Catherine Tran
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Didem Demirbas
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Cynthia S Gubbels
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Margaret Hsiao
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Vikram Daesety
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America
| | - Gerard T Berry
- Manton Center for Orphan Disease Research, Division of Genetics and Genomics, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States of America.
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