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Cardon I, Grobecker S, Jenne F, Jahner T, Rupprecht R, Milenkovic VM, Wetzel CH. Serotonin effects on human iPSC-derived neural cell functions: from mitochondria to depression. Mol Psychiatry 2024:10.1038/s41380-024-02538-0. [PMID: 38532010 DOI: 10.1038/s41380-024-02538-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/28/2024]
Abstract
Depression's link to serotonin dysregulation is well-known. The monoamine theory posits that depression results from impaired serotonin activity, leading to the development of antidepressants targeting serotonin levels. However, their limited efficacy suggests a more complex cause. Recent studies highlight mitochondria as key players in depression's pathophysiology. Mounting evidence indicates that mitochondrial dysfunction significantly correlates with major depressive disorder (MDD), underscoring its pivotal role in depression. Exploring the serotonin-mitochondrial connection, our study investigated the effects of chronic serotonin treatment on induced-pluripotent stem cell-derived astrocytes and neurons from healthy controls and two case study patients. One was a patient with antidepressant non-responding MDD ("Non-R") and another had a non-genetic mitochondrial disorder ("Mito"). The results revealed that serotonin altered the expression of genes related to mitochondrial function and dynamics in neurons and had an equalizing effect on calcium homeostasis in astrocytes, while ATP levels seemed increased. Serotonin significantly decreased cytosolic and mitochondrial calcium in neurons. Electrophysiological measurements evidenced that serotonin depolarized the resting membrane potential, increased both sodium and potassium current density and ultimately improved the overall excitability of neurons. Specifically, neurons from the Non-R patient appeared responsive to serotonin in vitro, which seemed to improve neurotransmission. While it is unclear how this translates to the systemic level and AD resistance mechanisms are not fully elucidated, our observations show that despite his treatment resistance, this patient's cortical neurons are responsive to serotonergic signals. In the Mito patient, evidence suggested that serotonin, by increasing excitability, exacerbated an existing hyperexcitability highlighting the importance of considering mitochondrial disorders in patients with MDD, and avoiding serotonin-increasing medication. Taken together, our findings suggested that serotonin positively affects calcium homeostasis in astrocytes and increases neuronal excitability. The latter effect must be considered carefully, as it could have beneficial or detrimental implications based on individual pathologies.
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Affiliation(s)
- Iseline Cardon
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Sonja Grobecker
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Frederike Jenne
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Tatjana Jahner
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Rainer Rupprecht
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Vladimir M Milenkovic
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany
| | - Christian H Wetzel
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053, Regensburg, Germany.
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Bacman SR, Barrera-Paez JD, Pinto M, Van Booven D, Stewart JB, Griswold AJ, Moraes CT. mitoTALEN reduces the mutant mtDNA load in neurons. MOLECULAR THERAPY. NUCLEIC ACIDS 2024; 35:102132. [PMID: 38404505 PMCID: PMC10883830 DOI: 10.1016/j.omtn.2024.102132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 01/29/2024] [Indexed: 02/27/2024]
Abstract
Mutations within mtDNA frequently give rise to severe encephalopathies. Given that a majority of these mtDNA defects exist in a heteroplasmic state, we harnessed the precision of mitochondrial-targeted TALEN (mitoTALEN) to selectively eliminate mutant mtDNA within the CNS of a murine model harboring a heteroplasmic mutation in the mitochondrial tRNA alanine gene (m.5024C>T). This targeted approach was accomplished by the use of AAV-PHP.eB and a neuron-specific synapsin promoter for effective neuronal delivery and expression of mitoTALEN. We found that most CNS regions were effectively transduced and showed a significant reduction in mutant mtDNA. This reduction was accompanied by an increase in mitochondrial tRNA alanine levels, which are drastically reduced by the m.5024C>T mutation. These results showed that mitochondrial-targeted gene editing can be effective in reducing CNS-mutant mtDNA in vivo, paving the way for clinical trials in patients with mitochondrial encephalopathies.
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Affiliation(s)
- Sandra R. Bacman
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jose Domingo Barrera-Paez
- Graduate Program in Human Genetics and Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Milena Pinto
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Derek Van Booven
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - James B. Stewart
- Biosciences Institute, Faculty of Medical Sciences, Wellcome Centre for Mitochondrial Research, Newcastle University, Newcastle upon Tyne, UK
| | - Anthony J. Griswold
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Carlos T. Moraes
- Department of Neurology, University of Miami Miller School of Medicine, Miami, FL, USA
- Department of Cell Biology, University of Miami Miller School of Medicine, Miami, FL, USA
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Cardon I, Grobecker S, Kücükoktay S, Bader S, Jahner T, Nothdurfter C, Koschitzki K, Berneburg M, Weber BHF, Stöhr H, Höring M, Liebisch G, Braun F, Rothammer-Hampl T, Riemenschneider MJ, Rupprecht R, Milenkovic VM, Wetzel CH. Mitochondrial and Cellular Function in Fibroblasts, Induced Neurons, and Astrocytes Derived from Case Study Patients: Insights into Major Depression as a Mitochondria-Associated Disease. Int J Mol Sci 2024; 25:963. [PMID: 38256041 PMCID: PMC10815943 DOI: 10.3390/ijms25020963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
The link between mitochondria and major depressive disorder (MDD) is increasingly evident, underscored both by mitochondria's involvement in many mechanisms identified in depression and the high prevalence of MDD in individuals with mitochondrial disorders. Mitochondrial functions and energy metabolism are increasingly considered to be involved in MDD's pathogenesis. This study focused on cellular and mitochondrial (dys)function in two atypical cases: an antidepressant non-responding MDD patient ("Non-R") and another with an unexplained mitochondrial disorder ("Mito"). Skin biopsies from these patients and controls were used to generate various cell types, including astrocytes and neurons, and cellular and mitochondrial functions were analyzed. Similarities were observed between the Mito patient and a broader MDD cohort, including decreased respiration and mitochondrial function. Conversely, the Non-R patient exhibited increased respiratory rates, mitochondrial calcium, and resting membrane potential. In conclusion, the Non-R patient's data offered a new perspective on MDD, suggesting a detrimental imbalance in mitochondrial and cellular processes, rather than simply reduced functions. Meanwhile, the Mito patient's data revealed the extensive effects of mitochondrial dysfunctions on cellular functions, potentially highlighting new MDD-associated impairments. Together, these case studies enhance our comprehension of MDD.
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Affiliation(s)
- Iseline Cardon
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Sonja Grobecker
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Selin Kücükoktay
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Stefanie Bader
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Tatjana Jahner
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Caroline Nothdurfter
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Kevin Koschitzki
- Department of Dermatology, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Mark Berneburg
- Department of Dermatology, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Bernhard H. F. Weber
- Institute of Human Genetics, University of Regensburg, 93053 Regensburg, Germany
- Institute of Clinical Human Genetics, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Heidi Stöhr
- Institute of Human Genetics, University of Regensburg, 93053 Regensburg, Germany
| | - Marcus Höring
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Frank Braun
- Department of Neuropathology, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Tanja Rothammer-Hampl
- Department of Neuropathology, Regensburg University Hospital, 93053 Regensburg, Germany
| | | | - Rainer Rupprecht
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Vladimir M. Milenkovic
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
| | - Christian H. Wetzel
- Department of Psychiatry and Psychotherapy, University of Regensburg, 93053 Regensburg, Germany; (I.C.)
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Cox BC, Pearson JY, Mandrekar J, Gavrilova RH. The clinical spectrum of MELAS and associated disorders across ages: a retrospective cohort study. Front Neurol 2023; 14:1298569. [PMID: 38156086 PMCID: PMC10753009 DOI: 10.3389/fneur.2023.1298569] [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: 09/21/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023] Open
Abstract
Objective Mitochondrial encephalomyopathy, lactic acidosis, and stroke-like episodes (MELAS) is a severe multisystemic disease, although some have a milder phenotype. We aimed to evaluate the clinical spectrum of this disease from MELAS patients to asymptomatic carriers and identify predictors of severity. Methods We reviewed 81 patients, who had MELAS or had positive genetics without meeting clinical criteria. Patients who met criteria including lactic acidosis, encephalomyopathy, and stroke-like episodes (SLE) were categorized as MELAS, symptomatic non-MELAS, and asymptomatic. MELAS was further categorized as "standard-onset" if the first stroke-like episode (SLE) occurred before age 40 or "late-onset." Results Eighty-one patients were included: 42 MELAS (13 late-onset), 30 symptomatic non-MELAS, and 9 asymptomatic. MELAS patients had lower BMI at onset (mean 18.6 vs. 25.1 asymptomatic and 22.0 symptomatic non-MELAS, p < 0.05). There was a trend toward higher serum heteroplasmy in MELAS compared to symptomatic non-MELAS and asymptomatic (means 39.3, 29.3, and 21.8% p = 0.09). Symptomatic non-MELAS had more sensorineural hearing loss as first presenting symptom (51.6% vs. 24.4%, p < 0.05). MELAS had higher prevalence of seizures (88.1% vs. 16.7%, p < 0.05) and shorter survival from onset to death (50% mortality at 25 years vs. 10%, p < 0.05). Late-onset MELAS had longer disease duration from first symptom to first SLE (mean 16.6 vs. 9.3 yrs) and also lived longer (mean age at death 62 vs. 30). Standard-onset MELAS had more neurologic involvement at onset than late-onset (51.7% vs. 15.4%). Late-onset patients had more prevalent diabetes (69.2% vs. 13.8%) and nephropathy (53.8% vs. 10.3%). Patients with late-onset MELAS also had more organ systems involved (mean 4.1 vs. 2.7, p < 0.05). There was a trend toward higher heteroplasmy levels in standard-onset (mean 44.8% vs. 25.3%, p = 0.18). Discussion Our study highlights the spectrum of MELAS. The lower BMI in MELAS at presentation as well as higher rates of sensorineural hearing loss as initial symptom in symptomatic non-MELAS may be useful clinical markers. While many patients present before age 40 with SLE, some can present with SLE later in life. Standard onset MELAS is more likely to present with neurologic symptoms. Late-onset is more likely to suffer diabetes or nephropathy and have more organ systems involved.
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Affiliation(s)
- Benjamin C. Cox
- Department of Neurology, College of Medicine, Mayo Clinic, Rochester, MN, United States
| | - Jennifer Y. Pearson
- Department of Neurology, College of Medicine, Mayo Clinic, Rochester, MN, United States
| | - Jay Mandrekar
- Department of Health Sciences Research, College of Medicine, Mayo Clinic, Rochester, MN, United States
| | - Ralitza H. Gavrilova
- Department of Neurology, College of Medicine, Mayo Clinic, Rochester, MN, United States
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Jaballah F, Ben Soussia Nouira R, Mallouli S, Boussaid H, Younes S, Zarrouk L, Younes S. Schizophrenia-Like Psychotic Symptoms Associated to Leigh Syndrome. Case Rep Psychiatry 2023; 2023:8886555. [PMID: 37693747 PMCID: PMC10484650 DOI: 10.1155/2023/8886555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/10/2023] [Accepted: 08/23/2023] [Indexed: 09/12/2023] Open
Abstract
Introduction Leigh syndrome (LS) is a mitochondrial disease characterized by subacute necrotizing encephalomyelopathy with an estimated incidence of 1:40,000 births. The comorbidity of psychotic symptoms noted in mitochondrial and psychiatric diseases has spurred interest in the effects of DNA mutations and psychiatric disorders. Case presentation. We report the case of a Tunisian 28-year-old male diagnosed with maternally inherited Leigh syndrome. He presented anxiety and auditory hallucinations, and he reported a vague, unsystematized delusion evolving since 6 months. Significant remission was observed at risperidone 3 mg/day. Discussion. The normality of explorations in our case raised the issue of the link between the two diseases, supporting the hypothesis that mitochondrial dysfunction maybe the primary origin of psychotic disorders. Conclusion The aim of our work is to study the relations between mitochondrial dysfunction and psychiatric symptoms. Further study of mitochondrial dysfunction in psychiatric disorders is expected to be useful for the development of cellular disease markers and new psychotropics.
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Affiliation(s)
- F. Jaballah
- Neurology Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - R. Ben Soussia Nouira
- Psychiatry Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - S. Mallouli
- Neurology Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - H. Boussaid
- Neurology Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - S. Younes
- Psychiatry Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - L. Zarrouk
- Psychiatry Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
| | - S. Younes
- Neurology Department, Taher Sfar University Hospital-Mahdia, Monastir University, Ksar Hallal, Tunisia
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6
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Ülgen DH, Ruigrok SR, Sandi C. Powering the social brain: Mitochondria in social behaviour. Curr Opin Neurobiol 2023; 79:102675. [PMID: 36696841 DOI: 10.1016/j.conb.2022.102675] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/17/2022] [Accepted: 12/23/2022] [Indexed: 01/25/2023]
Abstract
A central role of brain mitochondria in regulating and influencing social behaviour is emerging. In addition to its important roles as the "powerhouses" of the cell, mitochondria possess a plethora of cellular functions, such as regulating ion homeostasis, neurotransmitter levels, and lipid metabolism. Findings in the last decade are revealing an integral role for mitochondria in the regulation of behaviours, including those from the social domain. Here, we discuss recent evidence linking mitochondrial functions and dynamics to social behaviour and deficits, including examples in which social behaviours are modulated by stress in the context of mitochondrial changes, as well as potential therapeutic strategies and outstanding questions in the field.
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Affiliation(s)
- Doğukan Hazar Ülgen
- Laboratory of Behavioral Genetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Silvie Rosalie Ruigrok
- Laboratory of Behavioral Genetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Carmen Sandi
- Laboratory of Behavioral Genetics, Brain Mind Institute, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.
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Aldossary AM, Tawfik EA, Alomary MN, Alsudir SA, Alfahad AJ, Alshehri AA, Almughem FA, Mohammed RY, Alzaydi MM. Recent Advances in Mitochondrial Diseases: from Molecular Insights to Therapeutic Perspectives. Saudi Pharm J 2022; 30:1065-1078. [PMID: 36164575 PMCID: PMC9508646 DOI: 10.1016/j.jsps.2022.05.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Accepted: 05/24/2022] [Indexed: 11/07/2022] Open
Abstract
Mitochondria are double-membraned cytoplasmic organelles that are responsible for the production of energy in eukaryotic cells. The process is completed through oxidative phosphorylation (OXPHOS) by the respiratory chain (RC) in mitochondria. Thousands of mitochondria may be present in each cell, depending on the function of that cell. Primary mitochondria disorder (PMD) is a clinically heterogeneous disease associated with germline mutations in mitochondrial DNA (mtDNA) and/or nuclear DNA (nDNA) genes, and impairs mitochondrial structure and function. Mitochondrial dysfunction can be detected in early childhood and may be severe, progressive and often multi-systemic, involving a wide range of organs. Understanding epigenetic factors and pathways mutations can help pave the way for developing an effective cure. However, the lack of information about the disease (including age of onset, symptoms, clinical phenotype, morbidity and mortality), the limits of current preclinical models and the wide range of phenotypic presentations hamper the development of effective medicines. Although new therapeutic approaches have been introduced with encouraging preclinical and clinical outcomes, there is no definitive cure for PMD. This review highlights recent advances, particularly in children, in terms of etiology, pathophysiology, clinical diagnosis, molecular pathways and epigenetic alterations. Current therapeutic approaches, future advances and proposed new therapeutic plans will also be discussed.
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Haddad-Eid E, Gur N, Eid S, Pilowsky-Peleg T, Straussberg R. The phenotype of homozygous EMC10 variant: A new syndrome with intellectual disability and language impairment. Eur J Paediatr Neurol 2022; 37:56-61. [PMID: 35124540 DOI: 10.1016/j.ejpn.2022.01.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/26/2021] [Accepted: 01/22/2022] [Indexed: 10/19/2022]
Abstract
AIM To explore the cognitive and behavioral phenotype associated with a recently reported variant in endoplasmic reticulum membrane complex EMC10 c.287delG (Gly96Alafs∗9), suggested to cause a novel syndromic neurodevelopmental disorder. METHODS Homozygous EMC10 variant identified by a combination of autozygosity mapping and exome sequencing was found in five children (aged 7-18) from a large extended family. Their functioning was compared to normative data as well as to that of age-matched relatives (siblings/cousins), sharing similar familial and demographic characteristics. Neuropsychological, behavioral, and daily functioning were assessed. RESULTS Performance of all participants with EMC10 variant on both cognitive functioning and adaptive skills was lower than the normal range fulfilling diagnostic criteria for intellectual disability. Their functioning was also lower than that of their matched relatives on most areas of functioning, except visual memory that was found higher, in the low average range. Language difficulty was apparent in all participants with EMC10, and a discrepancy within participants' phenotype was found, with lower verbal abilities compared to visuospatial ability. More behavioral problems were found, although not in all participants with EMC10. CONCLUSION Homozygous EMC10 variant was found associated with a phenotype of intellectual disability and language deficits.
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Affiliation(s)
- Eliana Haddad-Eid
- School of Social Sciences, Tel Aviv Yaffo Academic College, Tel Aviv Yaffo, Israel
| | - Noa Gur
- Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel; The Neuropsychological Unit, Schneider Children's Medical Center of Israel, Petach Tikvah, Israel.
| | - Sharbel Eid
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv Yaffo, Israel
| | - Tammy Pilowsky-Peleg
- Department of Psychology, The Hebrew University of Jerusalem, Jerusalem, Israel; The Neuropsychological Unit, Schneider Children's Medical Center of Israel, Petach Tikvah, Israel
| | - Rachel Straussberg
- The Neurology Clinic, Schneider Children's Medical Center of Israel, Petach Tikvah, Israel
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Riquin E, Barth M, Le Nerzé T, Pasquini N, Prouteau C, Colin E, Amati Bonneau P, Procaccio V, Van Bogaert P, Duverger P, Bonneau D, Roy A. Neuropsychological Features of Children and Adolescents With Mitochondrial Disorders: A Descriptive Case Series. Front Psychiatry 2022; 13:864445. [PMID: 35463509 PMCID: PMC9021957 DOI: 10.3389/fpsyt.2022.864445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/14/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Mitochondrial disorders (MD) are metabolic diseases related to genetic mutations in mitochondrial DNA and nuclear DNA that cause dysfunction of the mitochondrial respiratory chain. Cognitive impairment and psychiatric symptoms are frequently associated with MD in the adult population. The aim of this study is to describe the neuropsychological profile in children and adolescents with MD. METHODS We prospectively recruited a sample of 12 children and adolescents between February 2019 and February 2020 in the Reference Center for Mitochondrial Disorders of Angers (France). Participants and their parents completed an anamnestic form describing socio-demographic data and completed the WISC-V (Wechsler Intelligence Scale for Children, 5th edition) and the Parent and Teacher forms of the BRIEF (Behavior Rating Inventory of Executive Function). RESULTS In our sample, the mean IQ (Intellectual Quotient) score was 87.3 ± 25.3. The score ranged from 52 to 120. Concerning executive functions, a significant global clinical complaint was found for parents (six times more than normal) and to a lesser extent, for teachers (among 3 to 4 times more). Levels of intelligence and executive functioning were globally linked in our cohort but dissociation remains a possibility. CONCLUSION The results of this study show that MD can be associated to neuropsychological disorders in children and adolescents, especially regarding the intelligence quotient and the executive function. Our study also highlights the need for regular neuropsychological assessments in individuals with MD and developing brains, such as children and adolescents.
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Affiliation(s)
- Elise Riquin
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France.,Univ Angers, Université de Nantes, LPPL, SFR Confluences, Angers, France.,Univ Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France
| | - Magalie Barth
- Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Thomas Le Nerzé
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
| | - Natwin Pasquini
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
| | - Clement Prouteau
- Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Estelle Colin
- Univ Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France.,Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Patrizia Amati Bonneau
- Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Vincent Procaccio
- Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Patrick Van Bogaert
- Department of Pediatric Neurology, University Hospital of Angers, Angers, France
| | - Philippe Duverger
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France.,Univ Angers, Université de Nantes, LPPL, SFR Confluences, Angers, France
| | - Dominique Bonneau
- Univ Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France.,Department of Genetics, National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Arnaud Roy
- Univ Angers, Université de Nantes, LPPL, SFR Confluences, Angers, France.,Reference Center for Learning Disabilities, University Hospital of Nantes, Nantes, France
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10
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Riquin E, Le Nerzé T, Pasquini N, Barth M, Prouteau C, Colin E, Amati Bonneau P, Procaccio V, Van Bogaert P, Duverger P, Bonneau D, Roy A. Psychiatric Symptoms of Children and Adolescents With Mitochondrial Disorders: A Descriptive Case Series. Front Psychiatry 2021; 12:685532. [PMID: 34354612 PMCID: PMC8329032 DOI: 10.3389/fpsyt.2021.685532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 06/24/2021] [Indexed: 12/27/2022] Open
Abstract
Background: Mitochondrial disorders (MD) are a group of clinically heterogeneous genetic disorders resulting from dysfunction of the mitochondrial respiratory chain. Cognitive impairment is a common feature in adults with MD and psychiatric symptoms are associated with MD in up to 70% of the adult population. The aim of this study is to describe the psychiatric profile in children and adolescents with MD by focusing on the description of psychiatric symptoms. Methods: A cohort of 12 children and adolescents was prospectively recruited between February 2019 and February 2020 in the Reference Center for Mitochondrial Disorders of Angers (France). Participants and their parents completed an anamnestic form to provide socio-demographic data and completed the Global Assessment of Functioning scale, the Brief Psychiatric Rating Scale, the Child Depression Inventory, the Revised Children's Manifest Anxiety Scale, and the Conner's Rating Scale to evaluate the inattention/hyperactivity symptoms as well as the Quality of Life scale. Results: Four children (33.3%) were diagnosed with depressive symptoms. With regarding to anxiety, 6 children (50%) reported anxiety issues during the psychiatric interview and 3 children (25%) were suffering from anxiety according to the RCMAS scale. Compared to other children with chronic illnesses, the individuals in our cohort reported a lower overall quality of life score and lower scores in physical and social subscales. Conclusion: Our study shows that MD can lead to psychiatric disorders in children and adolescents, in particular anxiety and depression, as well as poor quality of life. This highlights the need for regular psychiatric assessments in individuals with developing brains, such as children and adolescents. We do not, however, have data regarding the neuropsychological profile of this population.
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Affiliation(s)
- Elise Riquin
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
- University Angers, [CHU Angers], LPPL EA4638, Angers, France
- University Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France
| | - Thomas Le Nerzé
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
| | - Natwin Pasquini
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
| | - Magalie Barth
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Clément Prouteau
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Estelle Colin
- University Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Patrizia Amati Bonneau
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Vincent Procaccio
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Patrick Van Bogaert
- Department of Pediatric Neurology, University Hospital of Angers, Angers, France
| | - Philippe Duverger
- Department of Child and Adolescent Psychiatry, University Hospital of Angers, Angers, France
- University Angers, [CHU Angers], LPPL EA4638, Angers, France
| | - Dominique Bonneau
- University Angers, [CHU Angers], INSERM, CNRS, MITOVASC, SFR ICAT, Angers, France
- Department of Genetics and National Reference Center for Mitochondrial Disorders, University Hospital of Angers, Angers, France
| | - Arnaud Roy
- University Angers, [CHU Angers], LPPL EA4638, Angers, France
- Reference Center for Learning Disabilities, University Hospital of Nantes, Nantes, France
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