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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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Derks B, Rivera-Cruz G, Hagen-Lillevik S, Vos EN, Demirbas D, Lai K, Treacy EP, Levy HL, Wilkins-Haug LE, Rubio-Gozalbo ME, Berry GT. The hypergonadotropic hypogonadism conundrum of classic galactosemia. Hum Reprod Update 2023; 29:246-258. [PMID: 36512573 PMCID: PMC9976963 DOI: 10.1093/humupd/dmac041] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/19/2022] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Hypergonadotropic hypogonadism is a burdensome complication of classic galactosemia (CG), an inborn error of galactose metabolism that invariably affects female patients. Since its recognition in 1979, data have become available regarding the clinical spectrum, and the impact on fertility. Many women have been counseled for infertility and the majority never try to conceive, yet spontaneous pregnancies can occur. Onset and mechanism of damage have not been elucidated, yet new insights at the molecular level are becoming available that might greatly benefit our understanding. Fertility preservation options have expanded, and treatments to mitigate this complication either by directly rescuing the metabolic defect or by influencing the cascade of events are being explored. OBJECTIVE AND RATIONALE The aims are to review: the clinical picture and the need to revisit the counseling paradigm; insights into the onset and mechanism of damage at the molecular level; and current treatments to mitigate ovarian damage. SEARCH METHODS In addition to the work on this topic by the authors, the PubMed database has been used to search for peer-reviewed articles and reviews using the following terms: 'classic galactosemia', 'gonadal damage', 'primary ovarian insufficiency', 'fertility', 'animal models' and 'fertility preservation' in combination with other keywords related to the subject area. All relevant publications until August 2022 have been critically evaluated and reviewed. OUTCOMES A diagnosis of premature ovarian insufficiency (POI) results in a significant psychological burden with a high incidence of depression and anxiety that urges adequate counseling at an early stage, appropriate treatment and timely discussion of fertility preservation options. The cause of POI in CG is unknown, but evidence exists of dysregulation in pathways crucial for folliculogenesis such as phosphatidylinositol 3-kinase/protein kinase B, inositol pathway, mitogen-activated protein kinase, insulin-like growth factor-1 and transforming growth factor-beta signaling. Recent findings from the GalT gene-trapped (GalTKO) mouse model suggest that early molecular changes in 1-month-old ovaries elicit an accelerated growth activation and burnout of primordial follicles, resembling the progressive ovarian failure seen in patients. Although data on safety and efficacy outcomes are still limited, ovarian tissue cryopreservation can be a fertility preservation option. Treatments to overcome the genetic defect, for example nucleic acid therapy such as mRNA or gene therapy, or that influence the cascade of events are being explored at the (pre-)clinical level. WIDER IMPLICATIONS Elucidation of the molecular pathways underlying POI of any origin can greatly advance our insight into the pathogenesis and open new treatment avenues. Alterations in these molecular pathways might serve as markers of disease progression and efficiency of new treatment options.
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Affiliation(s)
- Britt Derks
- Department of Pediatrics and Clinical Genetics, Maastricht University Medical Centre+, Maastricht, The Netherlands.,GROW, Maastricht University, Maastricht, The Netherlands.,European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member and United for Metabolic Diseases Member
| | - Greysha Rivera-Cruz
- Division of Genetics & Genomics, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Synneva Hagen-Lillevik
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
| | - E Naomi Vos
- Department of Pediatrics and Clinical Genetics, Maastricht University Medical Centre+, Maastricht, The Netherlands.,GROW, Maastricht University, Maastricht, The Netherlands.,European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member and United for Metabolic Diseases Member
| | - Didem Demirbas
- Division of Genetics & Genomics, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Kent Lai
- Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, UT, USA.,Department of Nutrition and Integrative Physiology, University of Utah College of Health, Salt Lake City, UT, USA
| | - Eileen P Treacy
- European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member and United for Metabolic Diseases Member.,National Centre for Inherited Metabolic Disorders, Mater Misericordiae University Hospital, Dublin, Ireland.,School of Medicine, Trinity College, Dublin 2, Ireland.,School of Medicine, University College Dublin, Belfield, Dublin 4, Ireland
| | - Harvey L Levy
- Division of Genetics & Genomics, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Louise E Wilkins-Haug
- Division of Maternal Fetal Medicine, Obstetrics and Gynecology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M Estela Rubio-Gozalbo
- Department of Pediatrics and Clinical Genetics, Maastricht University Medical Centre+, Maastricht, The Netherlands.,GROW, Maastricht University, Maastricht, The Netherlands.,European Reference Network for Hereditary Metabolic Disorders (MetabERN) Member and United for Metabolic Diseases Member
| | - Gerard T Berry
- Division of Genetics & Genomics, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
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