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Gao Y, Peng L, Zhao C. MYH7 in cardiomyopathy and skeletal muscle myopathy. Mol Cell Biochem 2024; 479:393-417. [PMID: 37079208 DOI: 10.1007/s11010-023-04735-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 04/07/2023] [Indexed: 04/21/2023]
Abstract
Myosin heavy chain gene 7 (MYH7), a sarcomeric gene encoding the myosin heavy chain (myosin-7), has attracted considerable interest as a result of its fundamental functions in cardiac and skeletal muscle contraction and numerous nucleotide variations of MYH7 are closely related to cardiomyopathy and skeletal muscle myopathy. These disorders display significantly inter- and intra-familial variability, sometimes developing complex phenotypes, including both cardiomyopathy and skeletal myopathy. Here, we review the current understanding on MYH7 with the aim to better clarify how mutations in MYH7 affect the structure and physiologic function of sarcomere, thus resulting in cardiomyopathy and skeletal muscle myopathy. Importantly, the latest advances on diagnosis, research models in vivo and in vitro and therapy for precise clinical application have made great progress and have epoch-making significance. All the great advance is discussed here.
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Affiliation(s)
- Yuan Gao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Lu Peng
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, 250012, China
| | - Cuifen Zhao
- Department of Pediatrics, Qilu Hospital of Shandong University, Jinan, 250012, China.
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Huang H, Verma J, Mok V, Bharadwaj HR, Alrawashdeh MM, Aratikatla A, Sudan S, Talukder S, Habaka M, Tse G, Bardhan M. Exploring Health Care Disparities in Genetic Testing and Research for Hereditary Cardiomyopathy: Current State and Future Perspectives. Glob Med Genet 2024; 11:36-47. [PMID: 38304308 PMCID: PMC10834107 DOI: 10.1055/s-0044-1779469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024] Open
Abstract
Background Hereditary cardiomyopathies are commonly occurring myocardial conditions affecting heart structure and function with a genetic or familial association, but the etiology is often unknown. Cardiomyopathies are linked to significant mortality, requiring robust risk stratification with genetic testing and early diagnosis. Hypothesis We hypothesized that health care disparities exist in genetic testing for hereditary cardiomyopathies within clinical practice and research studies. Methods In a narrative fashion, we conducted a literature search with online databases such as PubMed/MEDLINE, Google Scholar, EMBASE, and Science Direct on papers related to hereditary cardiomyopathies. A comprehensive analysis of findings from articles in English on disparities in diagnostics and treatment was grouped into four categories. Results Racial and ethnic disparities in research study enrollment and health care delivery favor White populations and higher socioeconomic status, resulting in differences in the development and implementation of effective genetic screening. Such disparities have shown to be detrimental, as minorities often suffer from disease progression to heart failure and sudden cardiac death. Barriers related to clinical genetic testing included insurance-related issues and health illiteracy. The underrepresentation of minority populations extends to research methodologies, as testing in ethnic minorities resulted in a significantly lower detection rate and diagnostic yield, as well as a higher likelihood of misclassification of variants. Conclusions Prioritizing minority-based participatory research programs and screening protocols can address systemic disparities. Diversifying research studies can improve risk stratification strategies and impact clinical practice.
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Affiliation(s)
- Helen Huang
- Department of Medicine, School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Science, Dublin, Ireland
| | - Jay Verma
- Department of Medicine, Maulana Azad Medical College, University of Delhi, Delhi, India
| | - Valerie Mok
- Department of Medicine Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hareesha R. Bharadwaj
- Division of Medical Education, Faculty of Biology Medicine and Health, The University of Manchester, Manchester, United Kingdom
| | - Maen M. Alrawashdeh
- Department of Medicine, School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Science, Dublin, Ireland
| | - Adarsh Aratikatla
- Department of Medicine, School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Science, Dublin, Ireland
| | - Sourav Sudan
- Department of Medicine, Government Medical College, Jammu, Jammu and Kashmir, India
| | - Suprateeka Talukder
- Department of Medicine, Norfolk and Norwich University Hospital, Colney Lane, Norwich, United Kingdom
| | - Minatoullah Habaka
- Department of Medicine, School of Medicine, Royal College of Surgeons in Ireland, University of Medicine and Health Science, Dublin, Ireland
| | - Gary Tse
- Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, People's Republic of China
- Department of Medicine, Kent and Medway Medical School, Canterbury, Kent, United Kingdom
- Department of Medicine, School of Nursing and Health Studies, Hong Kong Metropolitan University, Hong Kong, People's Republic of China
| | - Mainak Bardhan
- Department of Medical Oncology, Miami Cancer Institute, Baptist Health South Florida, Miami, Florida, United States
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Furrow E, Tate N, Minor K, Martinson S, Larrabee S, Anttila M, Sleeper M, Henthorn P. An ABCC9 Missense Variant Is Associated with Sudden Cardiac Death and Dilated Cardiomyopathy in Juvenile Dogs. Genes (Basel) 2023; 14:genes14050988. [PMID: 37239348 DOI: 10.3390/genes14050988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/23/2023] [Accepted: 04/26/2023] [Indexed: 05/28/2023] Open
Abstract
Sudden cardiac death in the young (SCDY) is a devastating event that often has an underlying genetic basis. Manchester Terrier dogs offer a naturally occurring model of SCDY, with sudden death of puppies as the manifestation of an inherited dilated cardiomyopathy (DCM). We performed a genome-wide association study for SCDY/DCM in Manchester Terrier dogs and identified a susceptibility locus harboring the cardiac ATP-sensitive potassium channel gene ABCC9. Sanger sequencing revealed an ABCC9 p.R1186Q variant present in a homozygous state in all SCDY/DCM-affected dogs (n = 26). None of the controls genotyped (n = 398) were homozygous for the variant, but 69 were heterozygous carriers, consistent with autosomal recessive inheritance with complete penetrance (p = 4 × 10-42 for the association of homozygosity for ABCC9 p.R1186Q with SCDY/DCM). This variant exists at low frequency in human populations (rs776973456) with clinical significance previously deemed uncertain. The results of this study further the evidence that ABCC9 is a susceptibility gene for SCDY/DCM and highlight the potential application of dog models to predict the clinical significance of human variants.
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Affiliation(s)
- Eva Furrow
- College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55455, USA
| | - Nicole Tate
- College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55455, USA
| | - Katie Minor
- College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55455, USA
| | - Shannon Martinson
- Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE CIA 4P3, Canada
| | - Shannon Larrabee
- College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55455, USA
| | | | - Meg Sleeper
- College of Veterinary Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Paula Henthorn
- School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Diaconu R, Neagoe O, Mirea O, Tieranu E, Mustafa R, Balseanu TA, Donoiu I. Testosterone and quality of life in patients with dilated cardiomyopathy. Discoveries (Craiova) 2022; 10:e156. [PMID: 36540088 PMCID: PMC9757918 DOI: 10.15190/d.2022.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/25/2022] [Accepted: 09/28/2022] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND Testosterone is an important factor that influences the quality of life in men. The purpose of this study is to evaluate how testosterone level impacts the quality of life in patients with dilated cardiomyopathy. METHODS This cross-sectional single-center included 97 male patients with dilated cardiomyopathy, in whom serum testosterone was measured. Health-related quality of life was measured using the translated validated version of the Kansas City Cardiomyopathy Questionnaire (KCCQ-12). We used correlation and multivariable regression to assess the association between KCCQ-12 score, serum testosterone level, and clinical and paraclinical variables. RESULTS The mean age of study participants was 58 (range 29-88). The mean LVEF was 25 ±8.61%. The average total serum testosterone level was 3.13 ±2.72 (range 0.19-13.5 ng/ml). The median global KCCQ-12 score was 44.8 (6.2-90.6) representing a poor to fair impairment in quality of life. There was an inverse correlation between the KCCQ-12 score and NYHA class (Pearson coefficient r = 0.847 p<0.001) and a direct correlation with LVEF (r=0.445, p<0.001). Also, the KCCQ-12 score correlated with hemoglobin level (r=0.214, p=0.037) and plasmatic creatinine level (r=-0.296 p= 0.004). In multivariable regression, the independent predictors of health-related quality of life were testosterone, LVEF, and NYHA class. CONCLUSIONS The results of this study showed for the first time a significant direct relationship between serum testosterone levels and quality of life in patients with dilated cardiomyopathy.
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Affiliation(s)
- Rodica Diaconu
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
- Department of Physiology, University of Medicine and Pharmacy of Craiova, Romania
| | - Oana Neagoe
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
| | - Oana Mirea
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
| | - Eugen Tieranu
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
| | - Roxana Mustafa
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
| | | | - Ionut Donoiu
- Department of Cardiology, University of Medicine and Pharmacy Craiova, Romania
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Zheng M, Huang H, Zhu X, Ho H, Li L, Ji X. Clinical genetic testing in four highly suspected pediatric restrictive cardiomyopathy cases. BMC Cardiovasc Disord 2022; 22:240. [PMID: 35614389 PMCID: PMC9131548 DOI: 10.1186/s12872-022-02675-w] [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] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 05/13/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Restrictive cardiomyopathy (RCM) presents a high risk for sudden cardiac death in pediatric patients. Constrictive pericarditis (CP) exhibits a similar clinical presentation to RCM and requires differential diagnosis. While mutations of genes that encode sarcomeric and cytoskeletal proteins may lead to RCM, infection, rather than gene mutation, is the main cause of CP. Genetic testing may be helpful in the clinical diagnosis of RCM. METHODS In this case series study, we screened for TNNI3, TNNT2, and DES gene mutations that are known to be etiologically linked to RCM in four pediatric patients with suspected RCM. RESULTS We identified one novel heterozygous mutation, c.517C>T (substitution, position 517 C → T) (amino acid conversion, p.Leu173Phe), and two already known heterozygous mutations, c.508C>T (substitution, position 508, C → T) (amino acid conversion, p.Arg170Trp) and c.575G>A (substitution, position 575, G → A) (amino acid conversion, p.Arg192His), in the TNNI3 gene in three of the four patients. CONCLUSION Our findings support the notion that genetic testing may be helpful in the clinical diagnosis of RCM.
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Affiliation(s)
- Min Zheng
- Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, 136 Zhongshan 2nd Road, Yu Zhong District, Chongqing, 400014, China
| | - Hong Huang
- Pediatric Department, North-Kuanren General Hospital of Chongqing, Chongqing, 401121, China
| | - Xu Zhu
- Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, 136 Zhongshan 2nd Road, Yu Zhong District, Chongqing, 400014, China
| | - Harvey Ho
- Auckland Bioengineering Institute, The University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand
| | - Liling Li
- Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, 136 Zhongshan 2nd Road, Yu Zhong District, Chongqing, 400014, China
| | - Xiaojuan Ji
- Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Child Infection and Immunity, 136 Zhongshan 2nd Road, Yu Zhong District, Chongqing, 400014, China.
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Genetic Insights into Primary Restrictive Cardiomyopathy. J Clin Med 2022; 11:jcm11082094. [PMID: 35456187 PMCID: PMC9027761 DOI: 10.3390/jcm11082094] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/05/2022] [Accepted: 04/06/2022] [Indexed: 12/04/2022] Open
Abstract
Restrictive cardiomyopathy is a rare cardiac disease causing severe diastolic dysfunction, ventricular stiffness and dilated atria. In consequence, it induces heart failure often with preserved ejection fraction and is associated with a high mortality. Since it is a poor clinical prognosis, patients with restrictive cardiomyopathy frequently require heart transplantation. Genetic as well as non-genetic factors contribute to restrictive cardiomyopathy and a significant portion of cases are of unknown etiology. However, the genetic forms of restrictive cardiomyopathy and the involved molecular pathomechanisms are only partially understood. In this review, we summarize the current knowledge about primary genetic restrictive cardiomyopathy and describe its genetic landscape, which might be of interest for geneticists as well as for cardiologists.
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Diaconu R, Schaaps N, Afify M, Boor P, Cornelissen A, Florescu RA, Simsekyilmaz S, El-Khoury T, Schumacher D, Ioana M, Streata I, Militaru C, Donoiu I, Vogt F, Liehn EA. Apolipoprotein E4 Is Associated with Right Ventricular Dysfunction in Dilated Cardiomyopathy-An Animal and In-Human Comparative Study. Int J Mol Sci 2021; 22:ijms22189688. [PMID: 34575848 PMCID: PMC8468742 DOI: 10.3390/ijms22189688] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 08/29/2021] [Accepted: 08/30/2021] [Indexed: 01/03/2023] Open
Abstract
ApoE abnormality represents a well-known risk factor for cardiovascular diseases. Beyond its role in lipid metabolism, novel studies demonstrate a complex involvement of apoE in membrane homeostasis and signaling as well as in nuclear transcription. Due to the large spread of apoE isoforms in the human population, there is a need to understand the apoE’s role in pathological processes. Our study aims to dissect the involvement of apoE in heart failure. We showed that apoE-deficient rats present multiple organ damages (kidney, liver, lung and spleen) besides the known predisposition for obesity and affected lipid metabolism (two-fold increase in tissular damages in liver and one-fold increase in kidney, lung and spleen). Heart tissue also showed significant morphological changes in apoE−/− rats, mostly after a high-fat diet. Interestingly, the right ventricle of apoE−/− rats fed a high-fat diet showed more damage and affected collagen content (~60% less total collagen content and double increase in collagen1/collagen3 ratio) compared with the left ventricle (no significant differences in total collagen content or collagen1/collagen3 ratio). In patients, we were able to find a correlation between the presence of ε4 allele and cardiomyopathy (χ2 = 10.244; p = 0.001), but also with right ventricle dysfunction with decreased TAPSE (15.3 ± 2.63 mm in ε4-allele-presenting patients vs. 19.8 ± 3.58 mm if the ε4 allele is absent, p < 0.0001*) and increased in systolic pulmonary artery pressure (50.44 ± 16.47 mmHg in ε4-allele-presenting patients vs. 40.68 ± 15.94 mmHg if the ε4 allele is absent, p = 0.0019). Our results confirm that the presence of the ε4 allele is a lipid-metabolism-independent risk factor for heart failure. Moreover, we show for the first time that the presence of the ε4 allele is associated with right ventricle dysfunction, implying different regulatory mechanisms of fibroblasts and the extracellular matrix in both ventricles. This is essential to be considered and thoroughly investigated before the design of therapeutical strategies for patients with heart failure.
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Affiliation(s)
- Rodica Diaconu
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Nicole Schaaps
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Mamdouh Afify
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
- Department of Pathology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Peter Boor
- Medical Faculty, Institute of Pathology, RWTH Aachen University, 52074 Aachen, Germany;
| | - Anne Cornelissen
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Roberta A. Florescu
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Sakine Simsekyilmaz
- Department for Pharmacology and Clinical Pharmacology, Medical Faculty, University Hospital Düsseldorf, 40225 Düsseldorf, Germany;
| | - Teddy El-Khoury
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - David Schumacher
- Department of Anesthesiology, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany;
- Medical Faculty, Institute of Experimental Medicine and Systems Biology, RWTH Aachen University, 52074 Aachen, Germany
| | - Mihai Ioana
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
| | - Ioana Streata
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
| | - Constantin Militaru
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Ionut Donoiu
- Department of Cardiology, University of Medicine and Pharmacy, 200349 Craiova, Romania; (C.M.); (I.D.)
| | - Felix Vogt
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
| | - Elisa A. Liehn
- Human Genetic Laboratory, Faculty of Medicine, University of Medicine and Pharmacy, 200349 Craiova, Romania; (R.D.); (M.I.); (I.S.)
- Department of Cardiology, Angiology and Intensive Care, Medical Faculty, RWTH Aachen University, 52074 Aachen, Germany; (N.S.); (M.A.); (A.C.); (R.A.F.); (T.E.-K.); (F.V.)
- Medical Faculty, Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, 52074 Aachen, Germany
- Institute for Pathology “Victor Babes”, 050096 Bucharest, Romania
- Correspondence:
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Genetic Restrictive Cardiomyopathy: Causes and Consequences-An Integrative Approach. Int J Mol Sci 2021; 22:ijms22020558. [PMID: 33429969 PMCID: PMC7827163 DOI: 10.3390/ijms22020558] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 12/12/2022] Open
Abstract
The sarcomere as the smallest contractile unit is prone to alterations in its functional, structural and associated proteins. Sarcomeric dysfunction leads to heart failure or cardiomyopathies like hypertrophic (HCM) or restrictive cardiomyopathy (RCM) etc. Genetic based RCM, a very rare but severe disease with a high mortality rate, might be induced by mutations in genes of non-sarcomeric, sarcomeric and sarcomere associated proteins. In this review, we discuss the functional effects in correlation to the phenotype and present an integrated model for the development of genetic RCM.
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