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Bulduk BK, Tortajada J, Valiente-Pallejà A, Callado LF, Torrell H, Vilella E, Meana JJ, Muntané G, Martorell L. High number of mitochondrial DNA alterations in postmortem brain tissue of patients with schizophrenia compared to healthy controls. Psychiatry Res 2024; 337:115928. [PMID: 38759415 DOI: 10.1016/j.psychres.2024.115928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 04/12/2024] [Accepted: 04/26/2024] [Indexed: 05/19/2024]
Abstract
Previous studies have shown mitochondrial dysfunction in schizophrenia (SZ) patients, which may be caused by mitochondrial DNA (mtDNA) alterations. However, there are few studies in SZ that have analyzed mtDNA in brain samples by next-generation sequencing (NGS). To address this gap, we used mtDNA-targeted NGS and qPCR to characterize mtDNA alterations in brain samples from patients with SZ (n = 40) and healthy controls (HC) (n = 40). 35 % of SZ patients showed mtDNA alterations, a significantly higher prevalence compared to 10 % of HC. Specifically, SZ patients had a significantly higher frequency of deletions (35 vs. 5 in HC), with a mean number of deletions of 3.8 in SZ vs. 1.0 in HC. Likely pathogenic missense variants were also significantly more frequent in patients with SZ than in HC (10 vs. three HC), encompassing 14 variants in patients and three in HC. The pathogenic tRNA variant m.3243A>G was identified in one SZ patient with a high heteroplasmy level of 32.2 %. While no significant differences in mtDNA copy number (mtDNA-CN) were observed between SZ and HC, antipsychotic users had significantly higher mtDNA-CN than non-users. These findings suggest a potential role for mtDNA alterations in the pathophysiology of SZ that require further validation and functional studies.
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Affiliation(s)
- Bengisu K Bulduk
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain
| | - Juan Tortajada
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain
| | - Alba Valiente-Pallejà
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - Luís F Callado
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain; Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, and BioBizkaia Health Research Institute, Barakaldo, Bizkaia, Spain
| | - Helena Torrell
- Centre for Omic Sciences (COS), Joint Unit URV-EURECAT Technology Centre of Catalonia, Unique Scientific and Technical Infrastructures, Reus, Catalonia, Spain
| | - Elisabet Vilella
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
| | - J Javier Meana
- Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain; Department of Pharmacology, University of the Basque Country, UPV/EHU, Leioa, and BioBizkaia Health Research Institute, Barakaldo, Bizkaia, Spain
| | - Gerard Muntané
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain; Institut de Biologia Evolutiva (UPF-CSIC), Department of Medicine and Life Sciences, Universitat Pompeu Fabra, Parc de Recerca Biomèdica de Barcelona, Barcelona, Catalonia, Spain.
| | - Lourdes Martorell
- Hospital Universitari Institut Pere Mata (HUIPM), Reus, Catalonia, Spain; Institut d'Investigació Sanitària Pere Virgili (IISPV-CERCA), Universitat Rovira i Virgili (URV), Reus, Catalonia, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
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Shukla P, Mukherjee S, Patil A, Joshi B. Molecular characterization of variants in mitochondrial DNA encoded genes using next generation sequencing analysis and mitochondrial dysfunction in women with PCOS. Gene 2023; 855:147126. [PMID: 36563715 DOI: 10.1016/j.gene.2022.147126] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 12/07/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
Emerging studies indicates mitochondrial dysfunction and involvement of mitochondrial DNA (mtDNA) variants in the pathogenesis of polycystic ovary syndrome (PCOS). Cumulative effect of mtDNA rare variants are now gaining considerable interest apart from common variants in the pathogenesis of complex diseases. Rare variants may modify the effect of polymorphism or in combination with the common variants may affect the risk of disease. With the evolution of high throughput sequencing techniques, which can be utilized to identify common as well as rare variants along with heteroplasmy levels, comprehensive characterization of the mtDNA variants is possible. Till date, few studies reported common mtDNA variants using traditional sequencing techniques but rare variants in mtDNA encoding genes remain unexplored in women with PCOS. These mtDNA variants may be responsible for mitochondrial dysfunction and may contribute in PCOS pathogenesis. In this study we determined mtDNA copy number, a biomarker of mitochondrial dysfunction and first time analysed variants in mtDNA encoded genes in women with PCOS using mitochondrial Next Generation sequencing (NGS) approach and compared allele frequency from mitochondrial 1000 genome dataset. Variant annotation and prioritization was done using highly automated pipeline, MToolBox that excludes reads mapped from nuclear mitochondrial DNA sequences (NumtS) to identify unique mtDNA reads. The present study identified significant reduction in mtDNA copy number in women with PCOS compared to non-PCOS women. A total of unique 214 prioritized common to rare variants were identified in mtDNA encoded genes, 183 variants in OXPHOS complexes, 14 variants in MT-tRNA and 17 variants in MT-rRNA genes that may be involved in mitochondrial dysfunction in PCOS. Numerous variants were heteroplasmic, pathogenic in nature and occurred in evolutionary conserved region. Heteroplasmic variants were more frequently occurred in MT-CO3 gene. Non-synonymous variants were more than synonymous variants and mainly occurred in OXPHOS complex I and IV. Few variants were found to be associated with diseases in MITOMAP database. The study provides a better understanding towards pathogenesis of PCOS from novel aspects focusing on mitochondrial genetic defects as underlying cause for contributing mitochondrial dysfunction in women with PCOS.
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Affiliation(s)
- Pallavi Shukla
- Department of Molecular Endocrinology, Indian Council of Medical Research-National Institute for Research in Reproductive and Child Health (ICMR-NIRRCH), J.M. Street, Parel, Mumbai 400012, India.
| | - Srabani Mukherjee
- Department of Molecular Endocrinology, Indian Council of Medical Research-National Institute for Research in Reproductive and Child Health (ICMR-NIRRCH), J.M. Street, Parel, Mumbai 400012, India
| | - Anushree Patil
- Department of Clinical Research, Indian Council of Medical Research-National Institute for Research in Reproductive and Child Health (ICMR-NIRRCH), J.M. Street, Parel, Mumbai 400012, India
| | - Beena Joshi
- Department of Operational Research, Indian Council of Medical Research-National Institute for Research in Reproductive and Child Health (ICMR-NIRRCH), J.M. Street, Parel, Mumbai 400012, India
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Mitochondrial DNA population variation is not associated with Alzheimer's in the Japanese population: A consistent finding across global populations. PLoS One 2022; 17:e0276169. [PMID: 36264923 PMCID: PMC9584534 DOI: 10.1371/journal.pone.0276169] [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: 10/04/2021] [Accepted: 10/02/2022] [Indexed: 11/06/2022] Open
Abstract
Several mitochondrial DNA (mtDNA) haplogroup association studies have suggested that common mtDNA variants are associated with multifactorial diseases, including Alzheimer’s disease (AD). However, such studies have also produced conflicting results. A new mtDNA association model, the ‘variant load model’ (VLM), has been applied to multiple disease phenotypes. Application of the VLM in a 2017 study failed to find different variant loads in AD patients compared to controls, in two cohorts of European origin. The study also suggested a lower variant load in healthy elderly individuals, but could offer no replicate cohort to support this observation. Here, the VLM is applied to Japanese mtDNA sequences; in doing so, we explored the role of mtDNA variation in AD and ageing in a different global population. Consistent with the previous findings using the VLM in two populations of European origin, we found no evidence for an association between rarer, non-haplogroup associated variation and the development of AD. However, the result in the context of ageing that suggested those with fewer mildly deleterious mutations might undergo healthier ageing, was not replicated. In contrast to our previous study, our present results suggest that those living to advanced old age may harbour more mildly deleterious mtDNA variations. Importantly our analysis showed this finding is not primarily being driven by many rare population variants dispersed across the mtDNA, but by a few more frequent variants with high MutPred scores. It is suggested the variants in question do not exert a mildly deleterious effect in their most frequent haplogroup context.
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Campbell T, Slone J, Huang T. Mitochondrial Genome Variants as a Cause of Mitochondrial Cardiomyopathy. Cells 2022; 11:cells11182835. [PMID: 36139411 PMCID: PMC9496904 DOI: 10.3390/cells11182835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/05/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
Mitochondria are small double-membraned organelles responsible for the generation of energy used in the body in the form of ATP. Mitochondria are unique in that they contain their own circular mitochondrial genome termed mtDNA. mtDNA codes for 37 genes, and together with the nuclear genome (nDNA), dictate mitochondrial structure and function. Not surprisingly, pathogenic variants in the mtDNA or nDNA can result in mitochondrial disease. Mitochondrial disease primarily impacts tissues with high energy demands, including the heart. Mitochondrial cardiomyopathy is characterized by the abnormal structure or function of the myocardium secondary to genetic defects in either the nDNA or mtDNA. Mitochondrial cardiomyopathy can be isolated or part of a syndromic mitochondrial disease. Common manifestations of mitochondrial cardiomyopathy are a phenocopy of hypertrophic cardiomyopathy, dilated cardiomyopathy, and cardiac conduction defects. The underlying pathophysiology of mitochondrial cardiomyopathy is complex and likely involves multiple abnormal processes in the cell, stemming from deficient oxidative phosphorylation and ATP depletion. Possible pathophysiology includes the activation of alternative metabolic pathways, the accumulation of reactive oxygen species, dysfunctional mitochondrial dynamics, abnormal calcium homeostasis, and mitochondrial iron overload. Here, we highlight the clinical assessment of mtDNA-related mitochondrial cardiomyopathy and offer a novel hypothesis of a possible integrated, multivariable pathophysiology of disease.
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Orekhov AN, Nikiforov NG, Omelchenko AV, Sinyov VV, Sobenin IA, Vinokurov AY, Orekhova VA. The Role of Mitochondrial Mutations in Chronification of Inflammation: Hypothesis and Overview of Own Data. Life (Basel) 2022; 12:life12081153. [PMID: 36013333 PMCID: PMC9410061 DOI: 10.3390/life12081153] [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: 06/12/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 11/26/2022] Open
Abstract
Chronic human diseases, especially age-related disorders, are often associated with chronic inflammation. It is currently not entirely clear what factors are responsible for the sterile inflammatory process becoming chronic in affected tissues. This process implies impairment of the normal resolution of the inflammatory response, when pro-inflammatory cytokine production ceases and tissue repair process begins. The important role of the mitochondria in the correct functioning of innate immune cells is currently well recognized, with mitochondrial signals being an important component of the inflammatory response regulation. In this work, we propose a hypothesis according to which mitochondrial DNA (mtDNA) mutations may play a key role in rendering certain cells prone to prolonged pro-inflammatory activation, therefore contributing to chronification of inflammation. The affected cells become sites of constant pro-inflammatory stimulation. The study of the distribution of atherosclerotic lesions on the surface of the arterial wall samples obtained from deceased patients revealed a focal distribution of lesions corresponding to the distribution of cells with altered morphology that are affected by mtDNA mutations. These observations support the proposed hypothesis and encourage further studies.
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Affiliation(s)
- Alexander N. Orekhov
- Institute for Atherosclerosis Research, Osennyaya Street 4-1-207, 121609 Moscow, Russia
- Correspondence: (A.N.O.); (V.A.O.); Tel.: +7-9057506815 (A.N.O.)
| | - Nikita G. Nikiforov
- Laboratory of Angiopathology, The Institute of General Pathology and Pathophysiology, 8 Baltiyskaya Street, 125315 Moscow, Russia; (N.G.N.); (A.V.O.)
| | - Andrey V. Omelchenko
- Laboratory of Angiopathology, The Institute of General Pathology and Pathophysiology, 8 Baltiyskaya Street, 125315 Moscow, Russia; (N.G.N.); (A.V.O.)
| | - Vasily V. Sinyov
- Laboratory of Medical Genetics, Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (V.V.S.); (I.A.S.)
| | - Igor A. Sobenin
- Laboratory of Medical Genetics, Institute of Experimental Cardiology, National Medical Research Center of Cardiology, 121552 Moscow, Russia; (V.V.S.); (I.A.S.)
| | - Andrey Y. Vinokurov
- Cell Physiology & Pathology Laboratory of R&D Center of Biomedical Photonics, Orel State University, 95 Komsomolskaya Street, 302026 Orel, Russia;
| | - Varvara A. Orekhova
- Laboratory of Angiopathology, The Institute of General Pathology and Pathophysiology, 8 Baltiyskaya Street, 125315 Moscow, Russia; (N.G.N.); (A.V.O.)
- Correspondence: (A.N.O.); (V.A.O.); Tel.: +7-9057506815 (A.N.O.)
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Diepenbroek M, Amory C, Niederstätter H, Zimmermann B, Szargut M, Zielińska G, Dür A, Teul I, Mazurek W, Persak K, Ossowski A, Parson W. Genetic and phylogeographic evidence for Jewish Holocaust victims at the Sobibór death camp. Genome Biol 2021; 22:200. [PMID: 34353344 PMCID: PMC8343952 DOI: 10.1186/s13059-021-02420-0] [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: 01/04/2021] [Accepted: 06/29/2021] [Indexed: 11/24/2022] Open
Abstract
Six million Jews were killed by Nazi Germany and its collaborators during World War II. Archaeological excavations in the area of the death camp in Sobibór, Poland, revealed ten sets of human skeletal remains presumptively assigned to Polish victims of the totalitarian regimes. However, their genetic analyses indicate that the remains are of Ashkenazi Jews murdered as part of the mass extermination of European Jews by the Nazi regime and not of otherwise hypothesised non-Jewish partisan combatants. In accordance with traditional Jewish rite, the remains were reburied in the presence of a Rabbi at the place of their discovery.
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Affiliation(s)
- Marta Diepenbroek
- Department of Forensic Genetics, Pomeranian Medical University, Szczecin, Poland.,Institute of Legal Medicine, Ludwig Maximilian University of Munich, Munich, Germany
| | - Christina Amory
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Harald Niederstätter
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Bettina Zimmermann
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria
| | - Maria Szargut
- Department of Forensic Genetics, Pomeranian Medical University, Szczecin, Poland
| | - Grażyna Zielińska
- Department of Forensic Genetics, Pomeranian Medical University, Szczecin, Poland
| | - Arne Dür
- Institute of Mathematics, University of Innsbruck, Innsbruck, Austria
| | - Iwona Teul
- Institute of Anatomy, Pomeranian Medical University, Szczecin, Poland
| | | | - Krzysztof Persak
- Institute of Political Studies, Polish Academy of Sciences, Warsaw, Poland
| | - Andrzej Ossowski
- Department of Forensic Genetics, Pomeranian Medical University, Szczecin, Poland.
| | - Walther Parson
- Institute of Legal Medicine, Medical University of Innsbruck, Innsbruck, Austria. .,Forensic Science Program, The Pennsylvania State University, University Park, PA, USA.
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Brunst KJ, Zhang L, Zhang X, Baccarelli AA, Bloomquist T, Wright RJ. Associations Between Maternal Lifetime Stress and Placental Mitochondrial DNA Mutations in an Urban Multiethnic Cohort. Biol Psychiatry 2021; 89:570-578. [PMID: 33229036 PMCID: PMC7889635 DOI: 10.1016/j.biopsych.2020.09.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 09/08/2020] [Accepted: 09/10/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Disrupted placental functioning due to stress can have lifelong implications. Cumulative stress and trauma are likely to have lasting impacts on maternal physiological functioning and offspring development, resulting in increased risk for later-life complex disorders for which racial disparities exist. METHODS This study examined the association between maternal lifetime stress and placental mitochondrial DNA mutational load in an urban multiethnic cohort. Maternal lifetime exposure to stressful events was assessed using the validated Life Stressor Checklist-Revised. Whole mitochondrial DNA sequencing was performed and mutations were determined for 365 placenta samples with complete exposure and covariate data. Multivariable regression was used to model maternal lifetime stress in relation to placental mitochondrial DNA mutational load. Racial/ethnic differences were examined by cross-product terms and contrast statements. Gene-wise analyses were conducted. RESULTS We identified 13,189 heteroplasmies (Phred score > 10,000, minor allele frequency < 0.5, number of mutant reads > 1). Women experiencing increased psychosocial stress over their lifetime exhibited a higher number of total placental mitochondrial mutations (β = .23, 95% confidence interval = .03 to .42) and heteroplasmic mutations (β = .18, 95% confidence interval = .05 to .31) but not homoplasmic mutations (β = -.008, 95% confidence interval = -.03 to .01); the strongest associations were observed among Black women and genes coding for NADH dehydrogenase and cytochrome c oxidase subunits. CONCLUSIONS Cumulative maternal lifetime stress is associated with a greater mitochondrial mutational load, particularly among Black women. The impact of racial/ethnic differences in mutational load on placental function directly affecting offspring development and/or leading to chronic disease disparities warrants further investigation.
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Affiliation(s)
- Kelly J. Brunst
- University of Cincinnati, College of Medicine, Department of Environmental and Public Health Sciences, 160 Panzeca Way, Cincinnati, OH 45267
| | - Li Zhang
- University of Cincinnati, College of Medicine, Department of Environmental and Public Health Sciences, 160 Panzeca Way, Cincinnati, OH 45267
| | - Xiang Zhang
- University of Cincinnati, College of Medicine, Department of Environmental and Public Health Sciences, 160 Panzeca Way, Cincinnati, OH 45267
| | - Andrea A. Baccarelli
- Columbia University, Mailman School of Public Health, Department of Environmental Health Sciences, 722 West 168 Street, New York, NY 10032
| | - Tessa Bloomquist
- Columbia University, Mailman School of Public Health, Department of Environmental Health Sciences, 722 West 168 Street, New York, NY 10032
| | - Rosalind J. Wright
- Icahn School of Medicine at Mount Sinai, Department of Pediatrics and Department of Environmental Medicine & Public Health, 1 Gustave L. Levy Place, New York, NY 10029
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Gajda R, Samełko A, Czuba M, Piotrowska-Nowak A, Tońska K, Żekanowski C, Klisiewicz A, Drygas W, Gębska-Kuczerowska A, Gajda J, Knechtle B, Adamczyk JG. To Be a Champion of the 24-h Ultramarathon Race. If Not the Heart ... Mosaic Theory? INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052371. [PMID: 33804352 PMCID: PMC7957735 DOI: 10.3390/ijerph18052371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/16/2021] [Accepted: 02/24/2021] [Indexed: 12/16/2022]
Abstract
This comprehensive case analysis aimed to identify the features enabling a runner to achieve championship in 24-h ultramarathon (UM) races. A 36-year-old, multiple medalist of the World Championships in 24-h running, was assessed before, one and 10 days after a 24-h run. Results of his extensive laboratory and cardiological diagnostics with transthoracic echocardiography (TTE) and a one-time cardiopulmonary exercise test (CPET) were analyzed. After 12 h of running (approximately 130 km), the athlete experienced an increasing pain in the right knee. His baseline clinical data were within the normal range. High physical efficiency in CPET (VO2max 63 mL/kg/min) was similar to the average achieved by other ultramarathoners who had significantly worse results. Thus, we also performed genetic tests and assessed his psychological profile, body composition, and markers of physical and mental stress (serotonin, cortisol, epinephrine, prolactin, testosterone, and luteinizing hormone). The athlete had a mtDNA haplogroup H (HV0a1 subgroup, belonging to the HV cluster), characteristic of athletes with the highest endurance. Psychological studies have shown high and very high intensity of the properties of individual scales of the tools used mental resilience (62–100% depending on the scale), openness to experience (10th sten), coherence (10th sten), positive perfectionism (100%) and overall hope for success score (10th sten). The athlete himself considers the commitment and mental support of his team to be a significant factor of his success. Body composition assessment (%fat 13.9) and the level of stress markers were unremarkable. The tested athlete showed a number of features of the champions of ultramarathon runs, such as: inborn predispositions, mental traits, level of training, and resistance to pain. However, none of these features are reserved exclusively for “champions”. Team support’s participation cannot be underestimated. The factors that guarantee the success of this elite 24-h UM runner go far beyond physiological and psychological explanations. Further studies are needed to identify individual elements of the putative “mosaic theory of being a champion”.
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Affiliation(s)
- Robert Gajda
- Center for Sports Cardiology, Gajda-Med Medical Center in Pułtusk, 06-100 Pułtusk, Poland;
- Correspondence: ; Tel.: +48-604286030
| | - Aleksandra Samełko
- Department of Pedagogy and Psychology of Physical Culture, Faculty of Physical Education, Józef Piłsudski University of Physical Education in Warsaw, Marymoncka St. 34, 00-968 Warsaw, Poland;
| | - Miłosz Czuba
- Department of Applied and Clinical Physiology, Collegium Medicum University of Zielona Gora, 28 Zyty St., 65-417 Zielona Gora, Poland;
- Department of Kinesiology, Institute of Sport, 2 Trylogii St., 01-982 Warsaw, Poland
| | - Agnieszka Piotrowska-Nowak
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a Street, 02-106 Warsaw, Poland; (A.P.-N.); (K.T.)
| | - Katarzyna Tońska
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, Pawinskiego 5a Street, 02-106 Warsaw, Poland; (A.P.-N.); (K.T.)
| | - Cezary Żekanowski
- Laboratory of Neurogenetics, Mossakowski Medical Research Institute, Polish Academy of Sciences, ul. Pawinskiego 5, 02-106 Warszawa, Poland;
| | - Anna Klisiewicz
- The Cardinal Stefan Wyszyński National Institute of Cardiology, ul. Alpejska 42, 04-628 Warszawa, Poland; (A.K.); (W.D.)
| | - Wojciech Drygas
- The Cardinal Stefan Wyszyński National Institute of Cardiology, ul. Alpejska 42, 04-628 Warszawa, Poland; (A.K.); (W.D.)
- Department of Preventive Medicine, Faculty of Health, Medical University of Lodz, ul. Lucjana Żeligowskiego 7/9, 90-752 Łódź, Poland
| | - Anita Gębska-Kuczerowska
- Faculty of Medicine, Collegium Medicum, Cardinal Stefan Wyszyński University, Kazimierza Wóycickiego 1/3, 01-938 Warsaw, Poland;
| | - Jacek Gajda
- Center for Sports Cardiology, Gajda-Med Medical Center in Pułtusk, 06-100 Pułtusk, Poland;
| | - Beat Knechtle
- Institute of Primary Care, University of Zurich, 8091 Zurich, Switzerland;
- Medbase St. Gallen Am Vadianplatz, 9000 St. Gallen, Switzerland
| | - Jakub Grzegorz Adamczyk
- Department of Theory of Sport, Faculty of Physical Education, Józef Piłsudski University of Physical Education in Warsaw, Marymoncka St. 34, 00-968 Warsaw, Poland;
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Piotrowska-Nowak A, Krawczyński MR, Kosior-Jarecka E, Ambroziak AM, Korwin M, Ołdak M, Tońska K, Bartnik E. Mitochondrial genome variation in male LHON patients with the m.11778G > A mutation. Metab Brain Dis 2020; 35:1317-1327. [PMID: 32740724 PMCID: PMC7584531 DOI: 10.1007/s11011-020-00605-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/21/2020] [Indexed: 11/30/2022]
Abstract
Leber hereditary optic neuropathy (LHON) is a mitochondrial disorder with symptoms limited to a single tissue, optic nerve, resulting in vision loss. In the majority of cases it is caused by one of three point mutations in mitochondrial DNA (mtDNA) but their presence is not sufficient for disease development, since ~50% of men and ~10% women who carry them are affected. Thus additional modifying factors must exist. In this study, we use next generation sequencing to investigate the role of whole mtDNA variation in male Polish patients with LHON and m.11778G > A, the most frequent LHON mutation. We present a possible association between mtDNA haplogroup K and variants in its background, a combination of m.3480A > G, m.9055G > A, m.11299 T > C and m.14167C > T, and LHON mutation. These variants may have a negative effect on m.11778G > A increasing its penetrance and the risk of LHON in the Polish population. Surprisingly, we did not observe associations previously reported for m.11778G > A and LHON in European populations, particularly for haplogroup J as a risk factor, implying that mtDNA variation is much more complex. Our results indicate possible contribution of novel combination of mtDNA genetic factors to the LHON phenotype.
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Affiliation(s)
- Agnieszka Piotrowska-Nowak
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, 5a Pawińskiego Street, 02-106 Warsaw, Poland
| | - Maciej R. Krawczyński
- Department of Medical Genetics, Poznań University of Medical Sciences, 8 Rokietnicka Street, 60-806 Poznań, Poland
- Centers for Medical Genetics GENESIS, 4 Grudzieniec Street, 60-601 Poznań, Poland
| | - Ewa Kosior-Jarecka
- Department of Diagnostics and Microsurgery of Glaucoma, Medical University of Lublin, 1 Chmielna Street, 20-079 Lublin, Poland
| | - Anna M. Ambroziak
- Faculty of Physics, University of Warsaw, 5 Pasteur Street, 02-093 Warsaw, Poland
| | - Magdalena Korwin
- Department of Ophthalmology, Medical University of Warsaw, 13 Sierakowskiego Street, 03-709 Warsaw, Poland
| | - Monika Ołdak
- Department of Genetics, Institute of Physiology and Pathology of Hearing, 10 Mochnackiego Street, 02-042 Warsaw, Poland
- Department of Histology and Embryology, Center of Biostructure Research, Medical University of Warsaw, 5 Chałubińskiego Street, 02-004 Warsaw, Poland
| | - Katarzyna Tońska
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, 5a Pawińskiego Street, 02-106 Warsaw, Poland
| | - Ewa Bartnik
- Institute of Genetics and Biotechnology, Faculty of Biology, University of Warsaw, 5a Pawińskiego Street, 02-106 Warsaw, Poland
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, 5a Pawińskiego Street, 02-106 Warsaw, Poland
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10
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Ghosh R, Dubey S, Chatterjee S, Finsterer J, Biswas R, Lahiri D, Ray BK. Pathogenicity of the m.15043G>A variant. J Neurol Sci 2020; 417:116947. [PMID: 32507345 DOI: 10.1016/j.jns.2020.116947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 10/24/2022]
Affiliation(s)
- Ritwik Ghosh
- Department of General Medicine, Burdwan Medical College & Hospital, Burdwan, West Bengal, India
| | - Souvik Dubey
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Postgraduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - Subhankar Chatterjee
- Department of General Medicine, Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India
| | - Josef Finsterer
- Department of Neurology, Krankenanstalt Rudolfstiftung, Messerli Institute, Vienna, Austria.
| | - Rakesh Biswas
- Department of Medicine, Kamineni Institute of Medical Sciences, Narketpally, Nalgonda, Telangana, India
| | - Durjoy Lahiri
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Postgraduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
| | - Biman Kanti Ray
- Department of Neuromedicine, Bangur Institute of Neurosciences, Institute of Postgraduate Medical Education and Research & SSKM Hospital, Kolkata, West Bengal, India
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11
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Hagen CM, Elson JL, Hedley PL, Aidt FH, Havndrup O, Jensen MK, Kanters JK, Atherton JJ, McGaughran J, Bundgaard H, Christiansen M. Evolutionary dissection of mtDNA hg H: a susceptibility factor for hypertrophic cardiomyopathy. Mitochondrial DNA A DNA Mapp Seq Anal 2020; 31:238-244. [PMID: 32602800 DOI: 10.1080/24701394.2020.1782897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mitochondrial DNA (mtDNA) haplogroup (hg) H has been reported as a susceptibility factor for hypertrophic cardiomyopathy (HCM). This was established in genetic association studies, however, the SNP or SNP's that are associated with the increased risk have not been identified. Hg H is the most frequent European mtDNA hg with greater than 80 subhaplogroups (subhgs) each defined by specific SNPs. We tested the hypothesis that the distribution of H subhgs might differ between HCM patients and controls. The subhg H distribution in 55 HCM index cases was compared to that of two Danish mtDNA hg H control groups (n = 170 and n = 908, respectively). In the HCM group, H and 12 different H subhgs were found. All these, except subhgs H73, were also found in both control groups. The HCM group was also characterized by a higher proportion of H3 compared to H2. In the HCM group the H3/H2 proportion was 1.7, whereas it was 0.45 and 0.54 in the control groups. This tendency was replicated in an independent group of Hg H HCM index cases (n = 39) from Queensland, Australia, where the H3/H2 ratio was 1.5. In conclusion, the H subhgs distribution differs between HCM cases and controls, but the difference is subtle, and the understanding of the pathogenic significance is hampered by the lack of functional studies on the subhgs of H.
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Affiliation(s)
- Christian M Hagen
- Department for Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Joanna L Elson
- Department for Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark.,Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Paula L Hedley
- Department for Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark
| | - Frederik H Aidt
- Department for Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark
| | - Ole Havndrup
- Department of Cardiology, Roskilde Hospital, Roskilde, Denmark
| | - Morten K Jensen
- Department of Medicine B, The Heart Center, Copenhagen, Denmark
| | - Jørgen K Kanters
- Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - John J Atherton
- Department of Cardiology, Royal Brisbane Hospital and School of Medicine, University of Queensland, Brisbane, Australia
| | - Julie McGaughran
- Queensland Clinical Genetics Service, Royal Children's Hospital and School of Medicine, Brisbane, Australia
| | | | - Michael Christiansen
- Department for Congenital Disorders, Statens Serum Institute, Copenhagen, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
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12
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Volobueva A, Grechko A, Yet SF, Sobenin I, Orekhov A. Changes in Mitochondrial Genome Associated with Predisposition to Atherosclerosis and Related Disease. Biomolecules 2019; 9:E377. [PMID: 31426564 PMCID: PMC6723661 DOI: 10.3390/biom9080377] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/08/2019] [Accepted: 08/13/2019] [Indexed: 12/16/2022] Open
Abstract
Atherosclerosis-related cardiovascular diseases remain the leading cause of morbidity and mortality, and the search for novel diagnostic and therapeutic methods is ongoing. Mitochondrial DNA (mtDNA) mutations associated with atherosclerosis represent one of the less explored aspects of the disease pathogenesis that may bring some interesting opportunities for establishing novel molecular markers and, possibly, new points of therapeutic intervention. Recent studies have identified a number of mtDNA mutations, for which the heteroplasmy level was positively or negatively associated with atherosclerosis, including the disease at its early, subclinical stages. In this review, we summarize the results of these studies, providing a list of human mtDNA mutations potentially involved in atherosclerosis. The molecular mechanisms underlying such involvement remain to be elucidated, although it is likely that some of them may be responsible for the increased oxidative stress, which plays an important role in atherosclerosis.
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Affiliation(s)
- Aleksandrina Volobueva
- Laboratory of Gene Therapy, Biocad Biotechnology Company, Saint-Petersburg, Strelnya 198515, Russia
| | - Andrey Grechko
- Federal Scientific Clinical Center for Resuscitation and Rehabilitation, Moscow 109240, Russia
| | - Shaw-Fang Yet
- Institute of Cellular and System Medicine, National Health Research Institutes, 35 Keyan Road, Zhunan Town, Miaoli County 35053, Taiwan
| | - Igor Sobenin
- Laboratory of Medical Genetics, Russian Cardiology Research and Production Complex, Moscow, Russia
| | - Alexander Orekhov
- Institute for Atherosclerosis Research, Skolkovo Innovative Center, Moscow 121609, Russia.
- Institute of Human Morphology, Moscow 117418, Russia.
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