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Yazdani M. Cellular and Molecular Responses to Mitochondrial DNA Deletions in Kearns-Sayre Syndrome: Some Underlying Mechanisms. Mol Neurobiol 2024; 61:5665-5679. [PMID: 38224444 DOI: 10.1007/s12035-024-03938-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
Kearns-Sayre syndrome (KSS) is a rare multisystem mitochondrial disorder. It is caused by mitochondrial DNA (mtDNA) rearrangements, mostly large-scale deletions of 1.1-10 kb. These deletions primarily affect energy supply through impaired oxidative phosphorylation and reduced ATP production. This impairment gives rise to dysfunction of several tissues, in particular those with high energy demand like brain and muscles. Over the past decades, changes in respiratory chain complexes and energy metabolism have been emphasized, whereas little attention has been paid to other reports on ROS overproduction, protein synthesis inhibition, myelin vacuolation, demyelination, autophagy, apoptosis, and involvement of lipid raft and oligodendrocytes in KSS. Therefore, this paper draws attention towards these relatively underemphasized findings that might further clarify the pathologic cascades following deletions in the mtDNA.
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Affiliation(s)
- Mazyar Yazdani
- Department of Medical Biochemistry, Oslo University Hospital, Rikshospitalet, Oslo, 0027, Norway.
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2
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Kiely C, Douglas KAA, Douglas VP, Miller JB, Lizano P. Overlap between ophthalmology and psychiatry - A narrative review focused on congenital and inherited conditions. Psychiatry Res 2024; 331:115629. [PMID: 38029629 PMCID: PMC10842794 DOI: 10.1016/j.psychres.2023.115629] [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: 10/13/2022] [Revised: 11/23/2023] [Accepted: 11/24/2023] [Indexed: 12/01/2023]
Abstract
A number of congenital and inherited diseases present with both ocular and psychiatric features. The genetic inheritance and phenotypic variants play a key role in disease severity. Early recognition of the signs and symptoms of those disorders is critical to earlier intervention and improved prognosis. Typically, the associations between these two medical subspecialties of ophthalmology and psychiatry are poorly understood by most practitioners so we hope to provide a narrative review to improve the identification and management of these disorders. We conducted a comprehensive review of the literature detailing the diseases with ophthalmic and psychiatric overlap that were more widely represented in the literature. Herein, we describe the clinical features, pathophysiology, molecular biology, diagnostic tests, and the most recent approaches for the treatment of these diseases. Recent studies have combined technologies for ocular and brain imaging such as optical coherence tomography (OCT) and functional imaging with genetic testing to identify the genetic basis for eye-brain connections. Additional work is needed to further explore these potential biomarkers. Overall, accurate, efficient, widely distributed and non-invasive tests that can help with early recognition of these diseases will improve the management of these patients using a multidisciplinary approach.
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Affiliation(s)
- Chelsea Kiely
- Department of Psychiatry, Beth Israel Deaconess Medical Center, 75 Fenwood Rd, 612, Boston, MA, United States
| | - Konstantinos A A Douglas
- Department of Psychiatry, Beth Israel Deaconess Medical Center, 75 Fenwood Rd, 612, Boston, MA, United States; Harvard Retinal Imaging Lab, Massachusetts Eye and Ear, Boston, MA, United States
| | | | - John B Miller
- Harvard Retinal Imaging Lab, Massachusetts Eye and Ear, Boston, MA, United States; Retina Service, Department of Ophthalmology, Massachusetts Eye and Ear, Boston, MA, United States; Department of Ophthalmology, Harvard Medical School, Boston, MA, United States
| | - Paulo Lizano
- Department of Psychiatry, Beth Israel Deaconess Medical Center, 75 Fenwood Rd, 612, Boston, MA, United States; Department of Psychiatry, Harvard Medical School, Boston, MA, United States; Division of Translational Neuroscience, Beth Israel Deaconess Medical Center, Boston, MA, United States.
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Guimaraes TACD, Arram E, Shakarchi AF, Georgiou M, Michaelides M. Inherited causes of combined vision and hearing loss: clinical features and molecular genetics. Br J Ophthalmol 2023; 107:1403-1414. [PMID: 36162969 DOI: 10.1136/bjo-2022-321790] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/07/2022] [Indexed: 11/04/2022]
Abstract
Combined vision and hearing loss, also known as dual sensory impairment, can occur in several genetic conditions, including ciliopathies such as Usher and Bardet-Biedl syndrome, mitochondrial DNA disorders and systemic diseases, such as CHARGE, Stickler, Waardenburg, Alport and Alstrom syndrome. The retinal phenotype may point to the diagnosis of such disorders. Herein, we aim to provide a comprehensive review of the molecular genetics and clinical features of the most common non-chromosomal inherited disorders to cause dual sensory impairment.
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Affiliation(s)
| | - Elizabeth Arram
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
- UCL Institute of Ophthalmology, University College London, London, UK
| | - Ahmed F Shakarchi
- Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Michalis Georgiou
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
- UCL Institute of Ophthalmology, University College London, London, UK
- Jones Eye Institute, University of Arkansas for Medical Sciences, Little Rock, Arkansas, USA
| | - Michel Michaelides
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
- UCL Institute of Ophthalmology, University College London, London, UK
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Lodato V, Parlapiano G, Calì F, Silvetti MS, Adorisio R, Armando M, El Hachem M, Romanzo A, Dionisi-Vici C, Digilio MC, Novelli A, Drago F, Raponi M, Baban A. Cardiomyopathies in Children and Systemic Disorders When Is It Useful to Look beyond the Heart? J Cardiovasc Dev Dis 2022; 9:47. [PMID: 35200700 PMCID: PMC8877723 DOI: 10.3390/jcdd9020047] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/21/2022] [Accepted: 01/24/2022] [Indexed: 11/16/2022] Open
Abstract
Cardiomyopathy (CMP) is a rare disease in the pediatric population, with a high risk of morbidity and mortality. The genetic etiology of CMPs in children is extremely heterogenous. These two factors play a major role in the difficulties of establishing standard diagnostic and therapeutic protocols. Isolated CMP in children is a frequent finding, mainly caused by sarcomeric gene variants with a detection rate that can reach up to 50% of analyzed cohorts. Complex multisystemic forms of pediatric CMP are even more heterogenous. Few studies in literature take into consideration this topic as the main core since it represents a rarity (systemic CMP) within a rarity (pediatric population CMP). Identifying etiology in this cohort is essential for understanding prognosis, risk stratification, eligibility to heart transplantation and/or mechanical-assisted procedures, preventing multiorgan complications, and relatives' recurrence risk calculation. The previous points represent a cornerstone in patients' empowerment and personalized medical care approach. The aim of this work is to propose a new approach for an algorithm in the setting of the diagnostic framework of systemic pediatric CMP. On the other hand, during the literature review, we noticed a relatively common etiologic pattern in some forms of complex/multisystem CMP. In other words, certain syndromes such as Danon, Vici, Alström, Barth, and Myhre syndrome share a common pathway of directly or indirectly defective "autophagy" process, which appears to be a possible initiating/triggering factor for CMPs. This conjoint aspect could be important for possible prognostic/therapeutic implications in this category of patients. However, multicentric studies detailed functional and experimental models are needed prior to deriving conclusions.
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Affiliation(s)
- Valentina Lodato
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Giovanni Parlapiano
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Federica Calì
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Massimo Stefano Silvetti
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Rachele Adorisio
- Heart Failure Clinic-Heart Failure, Heart Transplant, Mechanical Circulatory Support Unit, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplant, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Michela Armando
- Department of Neuroscience and Neurorehabilitation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - May El Hachem
- Dermatology and Genodermatosis Units, Genetics and Rare Disease Research Division, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Antonino Romanzo
- Ophtalmology Unit, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Carlo Dionisi-Vici
- Division of Metabolism, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Maria Cristina Digilio
- Genetics and Rare Diseases Research Division, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Antonio Novelli
- Laboratory of Medical Genetics, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Fabrizio Drago
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
| | - Massimiliano Raponi
- Medical Direction, Bambino Gesù Children Hospital, IRCCS, 00165 Rome, Italy;
| | - Anwar Baban
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Pediatric Cardiology and Arrhythmia/Syncope Units, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (G.P.); (F.C.); (M.S.S.); (F.D.)
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Baban A, Lodato V, Parlapiano G, di Mambro C, Adorisio R, Bertini ES, Dionisi-Vici C, Drago F, Martinelli D. Myocardial and Arrhythmic Spectrum of Neuromuscular Disorders in Children. Biomolecules 2021; 11:1578. [PMID: 34827576 PMCID: PMC8615674 DOI: 10.3390/biom11111578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/02/2021] [Accepted: 10/14/2021] [Indexed: 12/30/2022] Open
Abstract
Neuromuscular disorders (NMDs) are highly heterogenous from both an etiological and clinical point of view. Their signs and symptoms are often multisystemic, with frequent cardiac involvement. In fact, childhood onset forms can predispose a person to various progressive cardiac abnormalities including cardiomyopathies (CMPs), valvulopathies, atrioventricular conduction defects (AVCD), supraventricular tachycardia (SVT) and ventricular arrhythmias (VA). In this review, we selected and described five specific NMDs: Friedreich's Ataxia (FRDA), congenital and childhood forms of Myotonic Dystrophy type 1 (DM1), Kearns Sayre Syndrome (KSS), Ryanodine receptor type 1-related myopathies (RYR1-RM) and Laminopathies. These changes are widely investigated in adults but less researched in children. We focused on these specific topics due their relative frequency and their potential unexpected cardiac manifestations in children. Moreover these conditions present different inheritance patterns and mechanisms of action. We decided not to discuss Duchenne and Becker muscular dystrophies due to extensive work regarding the cardiac aspects in children. For each described NMD, we focused on the possible cardiac manifestations such as different types of CMPs (dilated-DCM, hypertrophic-HCM, restrictive-RCM or left ventricular non compaction-LVNC), structural heart abnormalities (including valvulopathies), and progressive heart rhythm changes (AVCD, SVT, VA). We describe the current management strategies for these conditions. We underline the importance, especially for children, of a serial multidisciplinary personalized approach and the need for periodic surveillance by a dedicated heart team. This is largely due to the fact that in children, the diagnosis of certain NMDs might be overlooked and the cardiac aspect can provide signs of their presence even prior to overt neurological diagnosis.
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Affiliation(s)
- Anwar Baban
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplantation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (C.d.M.); (R.A.); (F.D.)
| | - Valentina Lodato
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplantation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (C.d.M.); (R.A.); (F.D.)
| | - Giovanni Parlapiano
- Laboratory of Medical Genetics, Translational Cytogenomics Research Unit, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy;
| | - Corrado di Mambro
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplantation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (C.d.M.); (R.A.); (F.D.)
| | - Rachele Adorisio
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplantation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (C.d.M.); (R.A.); (F.D.)
| | - Enrico Silvio Bertini
- The European Reference Network for Neuromuscular Disorders (ERN NMD), Unit of Neuromuscular and Neurodegenerative Disorders, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00146 Rome, Italy;
| | - Carlo Dionisi-Vici
- Division of Metabolism, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (C.D.-V.); (D.M.)
| | - Fabrizio Drago
- The European Reference Network for Rare, Low Prevalence and Complex Diseases of the Heart-ERN GUARD-Heart, Department of Pediatric Cardiology and Cardiac Surgery, Heart and Lung Transplantation, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (V.L.); (C.d.M.); (R.A.); (F.D.)
| | - Diego Martinelli
- Division of Metabolism, Bambino Gesù Children Hospital and Research Institute, IRCCS, 00165 Rome, Italy; (C.D.-V.); (D.M.)
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Finsterer J. Exclude hereditary and acquired differential disorders before attributing retinoschisis to Kears-Sayre syndrome. Ophthalmic Genet 2020; 42:99. [PMID: 32975160 DOI: 10.1080/13816810.2020.1827444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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