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Pasqualucci D, Maiani S, Perra F, Cau M, Coiana A, Bianco P, Olivotto I, Corda M. Danon disease in a Sardinian family: different aspects of the same mutation-a case report. Eur Heart J Case Rep 2023; 7:ytad237. [PMID: 37223322 PMCID: PMC10202301 DOI: 10.1093/ehjcr/ytad237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/12/2022] [Accepted: 05/04/2023] [Indexed: 05/25/2023]
Abstract
Background Danon disease (DD) is a rare X-linked disorder due to mutations in the lysosome-associated membrane protein 2 gene. It is characterized by a clinical triad of hypertrophic cardiomyopathy, skeletal myopathy, and a variable degree of intellectual disability. Case summary In this case series, we describe a mother and her son affected by DD, highlighting consistent clinical severity despite the expected variability related to gender. The mother (Case 1) presented isolated cardiac involvement, with an arrhythmogenic phenotype that evolved into severe heart failure requiring heart transplantation (HT). Danon disease was diagnosed 1 year after this event. Her son (Case 2) showed an earlier age onset of symptoms with complete atrioventricular block and fast progression of cardiac disease. Diagnosis was established 2 years after clinical presentation. He is currently listed for HT. Discussion In both of our patients, diagnostic delay was extremely long and could have been avoided by emphasizing the relevant clinical red flags. Patients affected by DD may present clinical heterogeneity in terms of natural history, age of onset, and cardiac and extracardiac involvement, even in the same family. Early diagnosis that phenotypic sex differences may impact is a crucial factor in managing patients with DD. Considering the rapid progression of cardiac disease and the poor prognosis, early diagnosis is important and close surveillance should be mandatory during follow-up.
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Affiliation(s)
| | - Silvia Maiani
- Clinical Cardiology, Department of Medical Science and Public Health, University of Cagliari, Monserrato, Italy
| | - Ferdinando Perra
- Clinical Cardiology, Department of Medical Science and Public Health, University of Cagliari, Monserrato, Italy
| | - Milena Cau
- Department of Medical Science and Public Health, University of Cagliari, Laboratory of Genetics and Genomics, Pediatric Hospital Microcitemico ‘A. Cao’, Cagliari, Italy
| | - Alessandra Coiana
- Department of Medical Science and Public Health, University of Cagliari, Laboratory of Genetics and Genomics, Pediatric Hospital Microcitemico ‘A. Cao’, Cagliari, Italy
| | - Paola Bianco
- Department of Pathology, Azienda Ospedaliera Brotzu, Piazzale Alessandro Ricchi 1, Cagliari, Italy
| | - Iacopo Olivotto
- Department of Experimental and Clinical Medicine, Meyer Children Hospital, University of Florence, Florence, Italy
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Lu G, Wang Y, Shi Y, Zhang Z, Huang C, He W, Wang C, Shen HM. Autophagy in health and disease: From molecular mechanisms to therapeutic target. MedComm (Beijing) 2022; 3:e150. [PMID: 35845350 PMCID: PMC9271889 DOI: 10.1002/mco2.150] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 02/05/2023] Open
Abstract
Macroautophagy/autophagy is an evolutionally conserved catabolic process in which cytosolic contents, such as aggregated proteins, dysfunctional organelle, or invading pathogens, are sequestered by the double‐membrane structure termed autophagosome and delivered to lysosome for degradation. Over the past two decades, autophagy has been extensively studied, from the molecular mechanisms, biological functions, implications in various human diseases, to development of autophagy‐related therapeutics. This review will focus on the latest development of autophagy research, covering molecular mechanisms in control of autophagosome biogenesis and autophagosome–lysosome fusion, and the upstream regulatory pathways including the AMPK and MTORC1 pathways. We will also provide a systematic discussion on the implication of autophagy in various human diseases, including cancer, neurodegenerative disorders (Alzheimer disease, Parkinson disease, Huntington's disease, and Amyotrophic lateral sclerosis), metabolic diseases (obesity and diabetes), viral infection especially SARS‐Cov‐2 and COVID‐19, cardiovascular diseases (cardiac ischemia/reperfusion and cardiomyopathy), and aging. Finally, we will also summarize the development of pharmacological agents that have therapeutic potential for clinical applications via targeting the autophagy pathway. It is believed that decades of hard work on autophagy research is eventually to bring real and tangible benefits for improvement of human health and control of human diseases.
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Affiliation(s)
- Guang Lu
- Department of Physiology, Zhongshan School of Medicine Sun Yat-sen University Guangzhou China
| | - Yu Wang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu China
| | - Yin Shi
- Department of Biochemistry Zhejiang University School of Medicine Hangzhou China
| | - Zhe Zhang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu China
| | - Canhua Huang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine Sichuan University and Collaborative Innovation Center for Biotherapy Chengdu China
| | - Weifeng He
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research Southwest Hospital Army Medical University Chongqing China
| | - Chuang Wang
- Department of Pharmacology, Provincial Key Laboratory of Pathophysiology Ningbo University School of Medicine Ningbo Zhejiang China
| | - Han-Ming Shen
- Department of Biomedical Sciences, Faculty of Health Sciences, Ministry of Education Frontiers Science Center for Precision Oncology University of Macau Macau China
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Zhang J, Chou OHI, Tse YL, Ng KM, Tse HF. Application of Patient-Specific iPSCs for Modelling and Treatment of X-Linked Cardiomyopathies. Int J Mol Sci 2021; 22:ijms22158132. [PMID: 34360897 PMCID: PMC8347533 DOI: 10.3390/ijms22158132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/22/2021] [Accepted: 07/24/2021] [Indexed: 12/11/2022] Open
Abstract
Inherited cardiomyopathies are among the major causes of heart failure and associated with significant mortality and morbidity. Currently, over 70 genes have been linked to the etiology of various forms of cardiomyopathy, some of which are X-linked. Due to the lack of appropriate cell and animal models, it has been difficult to model these X-linked cardiomyopathies. With the advancement of induced pluripotent stem cell (iPSC) technology, the ability to generate iPSC lines from patients with X-linked cardiomyopathy has facilitated in vitro modelling and drug testing for the condition. Nonetheless, due to the mosaicism of the X-chromosome inactivation, disease phenotypes of X-linked cardiomyopathy in heterozygous females are also usually more heterogeneous, with a broad spectrum of presentation. Recent advancements in iPSC procedures have enabled the isolation of cells with different lyonisation to generate isogenic disease and control cell lines. In this review, we will summarise the current strategies and examples of using an iPSC-based model to study different types of X-linked cardiomyopathy. The potential application of isogenic iPSC lines derived from a female patient with heterozygous Danon disease and drug screening will be demonstrated by our preliminary data. The limitations of an iPSC-derived cardiomyocyte-based platform will also be addressed.
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Affiliation(s)
- Jennifer Zhang
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (J.Z.); (O.H.-I.C.); (Y.-L.T.)
| | - Oscar Hou-In Chou
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (J.Z.); (O.H.-I.C.); (Y.-L.T.)
| | - Yiu-Lam Tse
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (J.Z.); (O.H.-I.C.); (Y.-L.T.)
| | - Kwong-Man Ng
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (J.Z.); (O.H.-I.C.); (Y.-L.T.)
- Correspondence: (K.-M.N.); (H.-F.T.); Tel.: +852-3917-9955 (K.-M.N.); +852-2255-3598 (H.-F.T.)
| | - Hung-Fat Tse
- Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (J.Z.); (O.H.-I.C.); (Y.-L.T.)
- Centre of Translational Stem Cell Biology, Hong Kong Science and Technology Park, Hong Kong, China
- Correspondence: (K.-M.N.); (H.-F.T.); Tel.: +852-3917-9955 (K.-M.N.); +852-2255-3598 (H.-F.T.)
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Xu J, Li Z, Liu Y, Zhang X, Niu F, Zheng H, Wang L, Kang L, Wang K, Xu B. Danon disease: a case report and literature review. Diagn Pathol 2021; 16:39. [PMID: 33933120 PMCID: PMC8088694 DOI: 10.1186/s13000-021-01100-8] [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] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 04/15/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Danon disease (DD) is a rare x-linked dominant multisystemic disorder with a clinical triad of severe cardiomyopathy, skeletal myopathy, and mental retardation. It is caused by a defect in the lysosomal-associated membrane protein-2 (LAMP2) gene, which leads to the formation of autophagic vacuoles containing glycogen granule deposits in skeletal and cardiac muscle fibers. So far, more than 50 different mutations in LAMP2 have been identified. CASE PRESENTATION Here, we report an 18-year-old male patient who was hospitalized for heart failure. Biopsy of the left lateral femoral muscle revealed scattered autophagic vacuoles in the muscle fibers with increased glycogen. Next generation sequencing (NGS) was used to detect gene mutations of the proband sample and a novel frameshift mutation (c.1052delG) has been identified in exon 8 of LAMP2, which leads to truncation of the protein. CONCLUSION We found a novel frameshift mutation, a hemizygous mutation (c.1052delG) in exon 8 of LAMP2, identified as presenting the hypertrophic cardiomyopathy (HCM) phenotype. Genetic analysis is the gold standard for the diagnosis of DD and is essential to determine appropriate treatment strategies and to confirm the genetic risk of family members.
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Affiliation(s)
- Jiamin Xu
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Zhu Li
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Yihai Liu
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Xinlin Zhang
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Fengnan Niu
- Department of Pathology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Hongyan Zheng
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Lian Wang
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China
| | - Lina Kang
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China.
| | - Kun Wang
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China.
| | - Biao Xu
- Department of Cardiology, Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing, 210008, P.R. China.
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Wang XY, Wang B, Zhu XL, Ma ZL, Liu Y, Lei CH, Yang QL, Hu D, Zhao XL, Liu ZR, Liu LW. Clinical and molecular characterization of seven patients with Danon disease. Exp Ther Med 2021; 21:395. [PMID: 33680117 PMCID: PMC7918051 DOI: 10.3892/etm.2021.9826] [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] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/27/2020] [Indexed: 01/08/2023] Open
Abstract
Danon disease is an X-linked glycogen storage disease characterized by skeletal myopathy, cardiomyopathy and intellectual impairment. It is caused by a loss-of-function mutation in the lysosome-associated membrane protein-2 (LAMP2) gene. In the present study, exon and boarding intron analysis of 96 cardio disease-associated genes was performed in 770 patients with hypertrophic cardiomyopathy (HCM) using second-generation sequencing. Next, the identified mutations were confirmed in family members of the patients and 300 healthy controls. Detailed clinical, electrocardiographic (ECG) and echocardiographic findings were recorded. A pathogenic mutation in LAMP2 was identified in 7 patients who phenotypically presented with HCM. A total of four patients had a fragmented QRS complex (fQRS) on surface ECG. In addition, two patients presented with ventricular preexcitation with a short PR interval. Compared with the patients with protein kinase AMP-activated non-catalytic subunit γ2 syndrome and Fabry disease, the 7 patients with Danon disease presented at an earlier age, had a smaller left atrial size, a thinner maximal left ventricular wall thickness and a lower probability of pacemaker implantation. Compared with 12 sex- and age-matched patients with sarcomere-protein mutations, the 4 patients with Danon disease had a lower left ventricular outflow tract gradient and worse diastolic function. The present study provided a comprehensive comparison of different pathologies presenting with HCM and reported on features of early-onset Danon disease, including the characteristic preexcitation and fQRS on ECG. This may provide valuable information that may be utilized for the early diagnosis and treatment of patients with Danon disease. The present study was registered as a clinical trial with ClinicalTrials.gov (Sep. 2, 2016; registry no. NCT02888132).
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Affiliation(s)
- Xuan-Ying Wang
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Bo Wang
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xiao-Li Zhu
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhi-Ling Ma
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Ying Liu
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Chang-Hui Lei
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Qian-Li Yang
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Dan Hu
- Department of Cardiology and Cardiovascular Research Institute, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
- Hubei Key Laboratory of Cardiology, Wuhan, Hubei 430060, P.R. China
| | - Xue-Li Zhao
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zhi-Rong Liu
- Department of Neurology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Li-Wen Liu
- Department of Ultrasound, Xijing Hypertrophic Cardiomyopathy Center, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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Update Review about Metabolic Myopathies. Life (Basel) 2020; 10:life10040043. [PMID: 32316520 PMCID: PMC7235760 DOI: 10.3390/life10040043] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/15/2020] [Accepted: 04/15/2020] [Indexed: 12/13/2022] Open
Abstract
The aim of this review is to summarize and discuss recent findings and new insights in the etiology and phenotype of metabolic myopathies. The review relies on a systematic literature review of recent publications. Metabolic myopathies are a heterogeneous group of disorders characterized by mostly inherited defects of enzymatic pathways involved in muscle cell metabolism. Metabolic myopathies present with either permanent (fixed) or episodic abnormalities, such as weakness, wasting, exercise-intolerance, myalgia, or an increase of muscle breakdown products (creatine-kinase, myoglobin) during exercise. Though limb and respiratory muscles are most frequently affected, facial, extra-ocular, and axial muscles may be occasionally also involved. Age at onset and prognosis vary considerably. There are multiple disease mechanisms and the pathophysiology is complex. Genes most recently related to metabolic myopathy include PGM1, GYG1, RBCK1, VMA21, MTO1, KARS, and ISCA2. The number of metabolic myopathies is steadily increasing. There is limited evidence from the literature that could guide diagnosis and treatment of metabolic myopathies. Treatment is limited to mainly non-invasive or invasive symptomatic measures. In conclusion, the field of metabolic myopathies is evolving with the more widespread availability and application of next generation sequencing technologies worldwide. This will broaden the knowledge about pathophysiology and putative therapeutic strategies for this group of neuromuscular disorders.
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Di RM, Yang CX, Zhao CM, Yuan F, Qiao Q, Gu JN, Li XM, Xu YJ, Yang YQ. Identification and functional characterization of KLF5 as a novel disease gene responsible for familial dilated cardiomyopathy. Eur J Med Genet 2020; 63:103827. [DOI: 10.1016/j.ejmg.2019.103827] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/25/2019] [Accepted: 12/14/2019] [Indexed: 02/08/2023]
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Cenacchi G, Papa V, Pegoraro V, Marozzo R, Fanin M, Angelini C. Review: Danon disease: Review of natural history and recent advances. Neuropathol Appl Neurobiol 2019; 46:303-322. [DOI: 10.1111/nan.12587] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 11/02/2019] [Indexed: 12/16/2022]
Affiliation(s)
- G. Cenacchi
- Department of Biomedical and Neuromotor Sciences “Alma Mater” University of Bologna Bologna Italy
| | - V. Papa
- Department of Biomedical and Neuromotor Sciences “Alma Mater” University of Bologna Bologna Italy
| | - V. Pegoraro
- Neurobiology Laboratory IRCCS San Camillo Hospital VeniceItaly
| | - R. Marozzo
- Neurobiology Laboratory IRCCS San Camillo Hospital VeniceItaly
| | - M. Fanin
- Department of Neurosciences University of Padova Padova Italy
| | - C. Angelini
- Neuromuscular Department IRCCS San Camillo Hospital Venice Italy
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Pigolkin YI, Shilova MA, Berezovskiy DP, Egorov VN, Tayutina TV, Bachurin SS, Kolomoets IA. [Molecular genetic basis of sudden cardiac death in the young with cardiomyopathy of various origins]. Sud Med Ekspert 2019; 62:48-53. [PMID: 31198205 DOI: 10.17116/sudmed20196203148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This paper provides a review of the modern literature devoted to the problem of forensic medical interpretation of the molecular genetic research of the young who died suddenly. The authors attempted to draw a parallel between the morphological markers of different variants of cardiomyopathy as the most common disease in sudden death at a young age and the association with genetic mutations in the genes responsible for the synthesis of sarcomer proteins, desmos and membrane channels. Based on the results of the analysis, further research is proposed to improve the accuracy of forensic diagnosis in cases of young deaths.
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Affiliation(s)
- Yu I Pigolkin
- Department of Forensic Medicine of the Sechenov First Moscow State Medical University under Ministry of Health of the Russia, Moscow, Russia, 119991
| | - M A Shilova
- Department of Forensic Medicine of the Sechenov First Moscow State Medical University under Ministry of Health of the Russia, Moscow, Russia, 119991
| | - D P Berezovskiy
- Department of Forensic Medicine and Medical Law of the Rostov State Medical University of the Ministry of Health of the Russia, Rostov-on-Don, Russia, 344022
| | - V N Egorov
- Department of Forensic Medicine and Medical Law of the Rostov State Medical University of the Ministry of Health of the Russia, Rostov-on-Don, Russia, 344022
| | - T V Tayutina
- Department of Forensic Medicine and Medical Law of the Rostov State Medical University of the Ministry of Health of the Russia, Rostov-on-Don, Russia, 344022
| | - S S Bachurin
- Department of Forensic Medicine and Medical Law of the Rostov State Medical University of the Ministry of Health of the Russia, Rostov-on-Don, Russia, 344022
| | - I A Kolomoets
- Department of Forensic Medicine and Medical Law of the Rostov State Medical University of the Ministry of Health of the Russia, Rostov-on-Don, Russia, 344022
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