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Šustr F, Macháčková T, Pešl M, Svačinova J, Trachtová K, Stárek Z, Kianička B, Slabý O, Novák J. Identification of Plasmatic MicroRNA-206 as New Predictor of Early Recurrence of Atrial Fibrillation After Catheter Ablation Using Next-generation Sequencing. Mol Diagn Ther 2024:10.1007/s40291-024-00698-x. [PMID: 38459249 DOI: 10.1007/s40291-024-00698-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND Catheter ablation (CA) of atrial fibrillation (AF) is indicated in patients with recurrent and symptomatic AF episodes. Despite the strict inclusion/exclusion criteria, AF recurrence after CA remains high. Identification of a novel biomarker that would predict AF recurrence would help to stratify the patients. The aim of the study was to seek novel biomarkers among the plasmatic microRNAs (miRNAs, miRs). METHODS A prospective monocentric study was conducted. A total of 49 consecutive AF patients indicated for CA were included. Blood sampling was performed prior to CA. RNA was isolated from plasma using commercial kits. In the exploration phase, small RNA sequencing was performed in ten AF patients (five with and five without AF recurrence) using Illumina instrument. In the validation phase, levels of selected miRNAs were determined using quantitative reverse transcription polymerase chain reaction (qRT-PCR) in all participants. RESULTS Altogether, 22 miRNAs were identified as altered between the groups by next-generation sequencing (using the DESeq2 algorithm). Using qRT-PCR, levels of the five most altered miRNAs (miR-190b/206/326/505-5p/1296-5p) were verified in the whole cohort. Plasma levels of hsa-miR-206 were significantly higher in patients with early (within 6 months) AF recurrence and showed an increase of risk recurrence,2.65 times by every increase in its level by 1 unit in the binary logistic regression. CONCLUSION We have identified a set of 22 plasmatic miRNAs that differ between the patients with and without AF recurrence after CA and confirmed hsa-miR-206 as a novel miRNA associated with early AF recurrence. Results shall be verified in a larger independent cohort.
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Affiliation(s)
- Filip Šustr
- 2nd Department of Internal Medicine, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Pekařská 53, 602 00, Brno, Czech Republic
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Táňa Macháčková
- Ondrej Slaby Joint Research Group, Central European Institute of Technology and Department of Biology of Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Martin Pešl
- 1st Department of Internal Medicine, Cardioangiology, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Brno, Czech Republic
| | - Jana Svačinova
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Karolína Trachtová
- Ondrej Slaby Joint Research Group, Central European Institute of Technology and Department of Biology of Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Zdeněk Stárek
- 1st Department of Internal Medicine, Cardioangiology, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Brno, Czech Republic
| | - Bohuslav Kianička
- 2nd Department of Internal Medicine, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Pekařská 53, 602 00, Brno, Czech Republic
| | - Ondřej Slabý
- Ondrej Slaby Joint Research Group, Central European Institute of Technology and Department of Biology of Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Novák
- 2nd Department of Internal Medicine, St. Anne's University Hospital in Brno and Faculty of Medicine of Masaryk University, Pekařská 53, 602 00, Brno, Czech Republic.
- Department of Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
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Juříková L, Masárová L, Panovský R, Pešl M, Revendová KŽ, Volný O, Feitová V, Holeček T, Kincl V, Danhofer P, Voháňka S, Haberlová J, Podolská K. Decreased quality of life in Duchenne muscular disease patients related to functional neurological and cardiac impairment. Front Neurol 2024; 15:1360385. [PMID: 38390598 PMCID: PMC10881660 DOI: 10.3389/fneur.2024.1360385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 01/24/2024] [Indexed: 02/24/2024] Open
Abstract
In this prospective study involving 37 Duchenne muscular dystrophy (DMD) patients aged 8-18 years and older, we examined the impact of neurological and cardiac factors on quality of life (QoL). Our findings revealed a negative correlation between upper limb movement and overall mobility, self-service, and usual activities. Ambulatory and non-ambulatory DMD patients showed significant differences in mobility-related parameters. Cardiac evaluations demonstrated associations between mitral annular plane systolic excursion (MAPSE) and mobility-related aspects. The PEDSQL 3.0 neuromuscular model questionnaire further highlighted age-related and movement-related correlations with QoL. The loss of ambulatory status and reduced upper limb movement were negatively associated with QoL, while upper limb movement positively correlated with septal MAPSE. However, no significant associations were found between MAPSE and anxiety/depression. These findings underscore the multifaceted impact of DMD on QoL and emphasize the importance of considering both neurological and cardiac factors in comprehensive patient care.
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Affiliation(s)
- Lenka Juříková
- Department of Paediatric Neurology, Faculty of Medicine of Masaryk University, University Hospital Brno, Brno, Czechia
| | - Lucia Masárová
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Roman Panovský
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- 1st Department of Internal Medicine-Cardio-angiology, Faculty of Medicine, St. Anne's University Hospital, Brno, Czechia
| | - Martin Pešl
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- 1st Department of Internal Medicine-Cardio-angiology, Faculty of Medicine, St. Anne's University Hospital, Brno, Czechia
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Kamila Žondra Revendová
- Department of Neurology, University Hospital Ostrava, Brno, Czechia
- Centre for Clinical Neurosciences, Faculty of Medicine, University Ostrava, Ostrava, Czechia
| | - Ondřej Volný
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Neurology, University Hospital Ostrava, Brno, Czechia
- Centre for Clinical Neurosciences, Faculty of Medicine, University Ostrava, Ostrava, Czechia
| | - Věra Feitová
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czechia
| | - Tomaš Holeček
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czechia
- Department of Biomedical Engineering, University of Technology, Brno, Czechia
| | - Vladimír Kincl
- International Clinical Research Center, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czechia
- 1st Department of Internal Medicine-Cardio-angiology, Faculty of Medicine, St. Anne's University Hospital, Brno, Czechia
| | - Pavlína Danhofer
- Department of Paediatric Neurology, Faculty of Medicine of Masaryk University, University Hospital Brno, Brno, Czechia
| | - Stanislav Voháňka
- Department of Neurology, Faculty of Medicine, University Hospital Brno, Masaryk University, Brno, Czechia
| | - Jana Haberlová
- Department of Paediatric Neurology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czechia
| | - Karolína Podolská
- Department of Paediatric Neurology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, Prague, Czechia
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Masárová L, Panovský R, Pešl M, Mary LMP, Holeček T, Kincl V, Juříková L, Máchal J, Opatřil L, Feitová V. Correction: Myocardial native T 1 mapping and extracellular volume quantification in asymptomatic female carriers of Duchenne muscular dystrophy gene mutations. Orphanet J Rare Dis 2023; 18:331. [PMID: 37858240 PMCID: PMC10588057 DOI: 10.1186/s13023-023-02922-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023] Open
Affiliation(s)
- Lucia Masárová
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Roman Panovský
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic.
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
| | - Martin Pešl
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Luz Mojica-Pisciotti Mary
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tomáš Holeček
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
- Department of Biomedical Engineering, University of Technology, Brno, Czech Republic
| | - Vladimír Kincl
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lenka Juříková
- Department of Paediatric Neurology, University Hospital, Brno, Czech Republic
| | - Jan Máchal
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lukáš Opatřil
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Věra Feitová
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
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Masárová L, Panovský R, Pešl M, Mojica-Pisciotti ML, Holeček T, Kincl V, Juříková L, Máchal J, Opatřil L, Feitová V. Myocardial native T 1 mapping and extracellular volume quantification in asymptomatic female carriers of Duchenne muscular dystrophy gene mutations. Orphanet J Rare Dis 2023; 18:283. [PMID: 37697356 PMCID: PMC10496385 DOI: 10.1186/s13023-023-02899-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 08/31/2023] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND Female carriers of dystrophin gene mutations (DMD-FC) were previously considered non-manifesting, but in recent decades, cardiomyopathy associated with muscular dystrophy and myocardial fibrosis has been described. Our study aimed to assess prospectively myocardial fibrosis in asymptomatic DMD-FC compared to a sex-matched control group (CG) with similar age distribution using native T1 mapping and extracellular volume (ECV) quantification by cardiovascular magnetic resonance (CMR) imaging. MATERIALS AND METHODS 38 DMD-FC with verified genetic mutation and 22 healthy volunteers were included. Using CMR, native T1 relaxation time and ECV quantification were determined in each group. Late gadolinium enhancement (LGE) was assessed in all cases. RESULTS There were 38 DMD-FC (mean age 39.1 ± 8.8 years) and 22 healthy volunteers (mean age 39.9 ± 12.6 years) imagined by CMR. The mean global native T1 relaxation time was similar for DMD-FC and CG (1005.1 ± 26.3 ms vs. 1003.5 ± 25.0 ms; p-value = 0.81). Likewise, the mean global ECV value was also similar between the groups (27.92 ± 2.02% vs. 27.10 ± 2.89%; p-value = 0.20). The segmental analysis of mean ECV values according to the American Heart Association classification did not show any differences between DMD-FC and CG. There was a non-significant trend towards higher mean ECV values of DMD-FC in the inferior and inferolateral segments of the myocardium (p-value = 0.075 and 0.070 respectively). CONCLUSION There were no statistically significant differences in the mean global and segmental native T1 relaxation times and the mean global or segmental ECV values. There was a trend towards higher segmental mean ECV values of DMD-FC in the inferior and inferolateral walls of the myocardium.
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Affiliation(s)
- Lucia Masárová
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Roman Panovský
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic.
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
| | - Martin Pešl
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Mary Luz Mojica-Pisciotti
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tomáš Holeček
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
- Department of Biomedical Engineering, University of Technology, Brno, Czech Republic
| | - Vladimír Kincl
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lenka Juříková
- Department of Paediatric Neurology, University Hospital, Brno, Czech Republic
| | - Jan Máchal
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lukáš Opatřil
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- 1st Department of Internal Medicine-Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Věra Feitová
- International Clinical Research Centre, St. Anne's University Hospital, Brno, Czech Republic
- Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
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Krejčí J, Arcidiacono OA, Čegan R, Radaszkiewicz K, Pacherník J, Pirk J, Pešl M, Fila P, Bártová E. Cell Differentiation and Aging Lead To Up-Regulation of FTO, While the ALKBH5 Protein Level Was Stable During Aging but Up-Regulated During in vitro-Induced Cardiomyogenesis. Physiol Res 2023; 72:425-444. [PMID: 37795886 PMCID: PMC10634569 DOI: 10.33549/physiolres.935078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/25/2023] [Indexed: 01/05/2024] Open
Abstract
FTO and ALKBH5 proteins are essential erasers of N6-adenosine methylation in RNA. We studied how levels of FTO and ALKBH5 proteins changed during mouse embryonic development, aging, cardiomyogenesis, and neuroectodermal differentiation. We observed that aging in male and female mice was associated with FTO up-regulation in mouse hearts, brains, lungs, and kidneys, while the ALKBH5 level remained stable. FTO and ALKBH5 proteins were up-regulated during experimentally induced cardiomyogenesis, but the level of ALKBH5 protein was not changed when neuroectodermal differentiation was induced. HDAC1 depletion in mouse ES cells caused FTO down-regulation. In these cells, mRNA, carrying information from genes that regulate histone signature, RNA processing, and cell differentiation, was characterized by a reduced level of N6-adenosine methylation in specific gene loci, primarily regulating cell differentiation into neuroectoderm. Together, when we compared both RNA demethylating proteins, the FTO protein level undergoes the most significant changes during cell differentiation and aging. Thus, we conclude that during aging and neuronal differentiation, m6A RNA demethylation is likely regulated by the FTO protein but not via the function of ALKBH5.
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Affiliation(s)
- J Krejčí
- Department of Cell Biology and Epigenetics, Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno, Czech Republic.
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Kohutova A, Münzova D, Pešl M, Rotrekl V. α 1-Adrenoceptor agonist methoxamine inhibits base excision repair via inhibition of apurinic/apyrimidinic endonuclease 1 (APE1). Acta Pharm 2023; 73:281-291. [PMID: 37307375 DOI: 10.2478/acph-2023-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 10/25/2022] [Indexed: 06/14/2023]
Abstract
Methoxamine (Mox) is a well-known α1-adrenoceptor agonist, clinically used as a longer-acting analogue of epinephrine. 1R,2S-Mox (NRL001) has been also undergoing clinical testing to increase the canal resting pressure in patients with bowel incontinence. Here we show, that Mox hydrochloride acts as an inhibitor of base excision repair (BER). The effect is mediated by the inhibition of apurinic/apyrimidinic endonuclease APE1. We link this observation to our previous report showing the biologically relevant effect of Mox on BER - prevention of converting oxidative DNA base damage to double-stranded breaks. We demonstrate that its effect is weaker, but still significant when compared to a known BER inhibitor methoxyamine (MX). We further determined Mox's relative IC 50 at 19 mmol L-1, demonstrating a significant effect of Mox on APE1 activity in clinically relevant concentrations.
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Affiliation(s)
- Aneta Kohutova
- 1Masaryk University, Faculty of Medicine, Department of Biology 625 00, Brno, Czech Republic
| | - Dita Münzova
- 1Masaryk University, Faculty of Medicine, Department of Biology 625 00, Brno, Czech Republic
| | - Martin Pešl
- 1Masaryk University, Faculty of Medicine, Department of Biology 625 00, Brno, Czech Republic
- 2International Clinical Research Center (ICRC), St.Anne's University hospital in Brno, 625 00, Brno, Czech Republic
| | - Vladimir Rotrekl
- 1Masaryk University, Faculty of Medicine, Department of Biology 625 00, Brno, Czech Republic
- 2International Clinical Research Center (ICRC), St.Anne's University hospital in Brno, 625 00, Brno, Czech Republic
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Odehnalová E, Valíková L, Caluori G, Kulík T, Římalová V, Jadczyk T, Dražanová E, Pavlova I, Pešl M, Kubeš V, Stárek Z. Comparison of gross pathology inspection and 9.4 T magnetic resonance imaging in the evaluation of radiofrequency ablation lesions in the left ventricle of the swine heart. Front Physiol 2022; 13:834328. [PMID: 36338496 PMCID: PMC9626654 DOI: 10.3389/fphys.2022.834328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 10/03/2022] [Indexed: 11/15/2022] Open
Abstract
Aims: Gross pathology inspection (patho) is the gold standard for the morphological evaluation of focal myocardial pathology. Examination with 9.4 T magnetic resonance imaging (MRI) is a new method for very accurate display of myocardial pathology. The aim of this study was to demonstrate that lesions can be measured on high-resolution MRI images with the same accuracy as on pathological sections and compare these two methods for the evaluation of radiofrequency (RF) ablation lesion dimensions in swine heart tissue during animal experiment. Methods: Ten pigs underwent radiofrequency ablations in the left ventricle during animal experiment. After animal euthanasia, hearts were explanted, flushed with ice-cold cardioplegic solution to relax the whole myocardium, fixed in 10% formaldehyde and scanned with a 9.4 T magnetic resonance system. Anatomical images were processed using ImageJ software. Subsequently, the hearts were sliced, slices were photographed and measured in ImageJ software. Different dimensions and volumes were compared. Results: The results of both methods were statistically compared. Depth by MRI was 8.771 ± 2.595 mm and by patho 9.008 ± 2.823 mm; p = 0.198. Width was 10.802 ± 2.724 mm by MRI and 11.125 ± 2.801 mm by patho; p = 0.049. Estuary was 2.006 ± 0.867 mm by MRI and 2.001 ± 0.872 mm by patho; p = 0.953. The depth at the maximum diameter was 4.734 ± 1.532 mm on MRI and 4.783 ± 1.648 mm from the patho; p = 0.858. The volumes of the lesions calculated using a formula were 315.973 ± 257.673 mm3 for MRI and 355.726 ± 255.860 mm3 for patho; p = 0.104. Volume directly measured from MRI with the “point-by-point” method was 671.702 ± 362.299 mm3. Conclusion: Measurements obtained from gross pathology inspection and MRI are fully comparable. The advantage of MRI is that it is a non-destructive method enabling repeated measurements in all possible anatomical projections.
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Affiliation(s)
- Eva Odehnalová
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
| | - Lucia Valíková
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
| | - Guido Caluori
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
- Nanotechnology, CEITEC Masaryk University, Brno, Czech
- IHU LIRYC, Electrophysiology and Heart Modeling Institute, Fondation Bordeaux Université, Pessac, France
- University Bordeaux, INSERM, Cardiothoracic Research Center of Bordeaux, Pessac, France
| | - Tomáš Kulík
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
- 1st Department of Internal Medicine—Cardioangiology, St. Anne’s University Hospital Brno, Brno, Czech
| | - Veronika Římalová
- Biostatistics, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
| | - Tomasz Jadczyk
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
- Division of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland
| | - Eva Dražanová
- Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czech
| | - Iveta Pavlova
- Institute of Scientific Instruments of the Czech Academy of Sciences, Brno, Czech
| | - Martin Pešl
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
- Nanotechnology, CEITEC Masaryk University, Brno, Czech
- Department of Biology, Faculty of Medicine Masaryk University Brno, Brno, Czech
| | - Václav Kubeš
- Department of Pathology, University Hospital Brno, Brno, Czech
| | - Zdeněk Stárek
- Interventional Cardiac Electrophysiology Group, International Clinical Research Center, St. Anne’s University Hospital Brno, Brno, Czech
- 1st Department of Internal Medicine—Cardioangiology, St. Anne’s University Hospital Brno, Brno, Czech
- *Correspondence: Zdeněk Stárek,
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Mojica-Pisciotti ML, Panovský R, Masárová L, Pešl M, Stárek Z, Holeček T, Feitová V, Opatřil L, Doležalová K, Kincl V. Left atrium phasic impairments in paroxysmal atrial fibrillation patients assessed by cardiovascular magnetic resonance feature tracking. Sci Rep 2022; 12:7539. [PMID: 35534637 PMCID: PMC9085809 DOI: 10.1038/s41598-022-11233-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 04/06/2022] [Indexed: 11/12/2022] Open
Abstract
Atrial fibrillation (AF) is an abnormal and irregular heartbeat caused by uncoordinated electrical impulses in the left atrium (LA), which could induce lasting changes in the heart tissue or could be a consequence of underlying cardiac disease. This study aimed to assess the left atrial phasic function and deformation in paroxysmal AF (PAF) patients—who had not received radiofrequency ablation and had no signs of permanent AF—using the cardiovascular magnetic resonance (CMR) feature-tracking (FT) technique. Fifty subjects (27 PAF patients and 23 controls) were included and examined with CMR. Their LA volume, LA function, LA longitudinal strain (LS) and LA strain rate were assessed in the LA reservoir, conduit, and contractile phases. PAF patients exhibited higher LA volumes than controls, while their LA emptying fraction and LA LS was significantly lower in all three phases. In contrast, the corresponding emptying volumes (total, passive and active) were similar in both groups. The LA volumetric rates from CMR-derived volume curves differed significantly in PAF patients vs controls in the reservoir and contractile phases. In contrast, the equivalent LV volumetric rates were similar. This study suggests that assessing the LA phasic function could offer insight into early LA impairments for PAF patients.
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Pešl M, Kulík T, Ostřížek T, Horváth V, Souček F, Melajová K, Doležalová K, Žáková D, Jadczyk T, Lehar F, Jež J, Stárek Z. Mid-term success rate of single stage hybrid ablation of persistent and long-term persistent atrial fibrillation. Vnitr Lek 2022; 68:20-26. [PMID: 36283813 DOI: 10.36290/vnl.2022.069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Single stage thoracoscopic radiofrequency ablation (RFA) is a treatment method for persistent and long-term persistent atrial fibrillation (AF) offering the possibility for patients otherwise inconsolable by conventional catheter RFA. We present a pilot group of patients after the introduction of the new method at our clinical center. Patients group: A total of 52 patients aged 61.82 ± 9.7 years underwent single stage hybrid ablation (thoracoscopic isolation of pulmonary veins and box lesion followed by catheter verification of the surgical procedure effectivness) for symptomatic persistent and long-term persistent AF with significantly dilated left atrium 57.9 ± 11.0mm in the period September 2016-March 2019. RESULTS The median duration of the procedure was 232 minutes and the median duration of hospitalization was 10 days. At discharge, 52 patients (100%) had sinus rhythm. 48 of 52 patients (92.3%) had a 6-month follow-up. 41 of 48 (85.4%) and 38 of 44 (86.4%) of patients were AF free at 3-month and 6-month follow-up, respectively. Acute complications were: one left atrial perforation resolved successfully by suture and one transient ischaemic attack without permanent sequelae. Late complications involved one massive pulmonary embolization and an atrioesophageal fistula. There was no periprocedural myocardial infarction or stroke with permanent sequelae. CONCLUSION Hybrid thoracoscopic-catheter ablation performed during one procedure is an effective and relatively safe mini-invasive method of treatment for long-term persistent atrial fibrillation.
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Panovský R, Pešl M, Máchal J, Holeček T, Feitová V, Juříková L, Masárová L, Pešlová E, Opatřil L, Mojica-Pisciotti ML, Kincl V. Quantitative assessment of left ventricular longitudinal function and myocardial deformation in Duchenne muscular dystrophy patients. Orphanet J Rare Dis 2021; 16:57. [PMID: 33516230 PMCID: PMC7847593 DOI: 10.1186/s13023-021-01704-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 01/21/2021] [Indexed: 01/01/2023] Open
Abstract
Background Duchenne muscular dystrophy (DMD) manifests in males mainly by skeletal muscle impairment, but also by cardiac dysfunction. The assessment of the early phases of cardiac involvement using echocardiography is often very difficult to perform in these patients. The aim of the study was to use cardiac magnetic resonance (CMR) strain analysis and mitral annular plane systolic excursion (MAPSE) in the detection of early left ventricular (LV) dysfunction in DMD patients.
Methods and results In total, 51 male DMD patients and 18 matched controls were examined by CMR. MAPSE measurement and functional analysis using feature tracking (FT) were performed. Three groups of patients were evaluated: A/ patients with LGE and LV EF < 50% (n = 8), B/ patients with LGE and LVEF ≥ 50% (n = 13), and C/ patients without LGE and LVEF ≥ 50% (n = 30). MAPSE and global LV strains of the 3 DMD groups were compared to controls (n = 18).
Groups A and B had significantly reduced values of MAPSE, global longitudinal strain (GLS), global circumferential strain (GCS), and global radial strain (GRS) in comparison to controls (p < 0.05). The values of MAPSE (11.6 ± 1.9 v 13.7 ± 2.7 mm) and GCS (− 26.2 ± 4.2 v − 30.0 ± 5.1%) were significantly reduced in group C compared to the controls (p < 0.05). Conclusion DMD patients had decreased LV systolic function measured by MAPSE and global LV strain even in the case of normal LV EF and the absence of LGE. FT and MAPSE measurement provide sensitive assessment of early cardiac involvement in DMD patients.
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Affiliation(s)
- Roman Panovský
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic. .,1St Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic.
| | - Martin Pešl
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,1St Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Máchal
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,Department of Pathophysiology, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
| | - Tomáš Holeček
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,Department of Medical Imaging, St. Anne's Faculty Hospital, Brno, Brno, Czech Republic
| | - Věra Feitová
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,Department of Medical Imaging, St. Anne's Faculty Hospital, Brno, Brno, Czech Republic
| | - Lenka Juříková
- Department of Pediatric Neurology, University Hospital Brno, Brno, Czech Republic
| | - Lucia Masárová
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,1St Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
| | - Eva Pešlová
- First Department of Neurology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
| | - Lukáš Opatřil
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,1St Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
| | | | - Vladimír Kincl
- International Clinical Research Center, St. Anne's Faculty Hospital, Brno, Czech Republic.,1St Department of Internal Medicine/Cardioangiology, St. Anne's Faculty Hospital, Faculty of Medicine, Masaryk University Brno, Brno, Czech Republic
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11
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Kincl V, Panovský R, Pešl M, Máchal J, Juříková L, Haberlová J, Masárová L. Echocardiographic signs of subclinical cardiac function impairment in Duchenne dystrophy gene carriers. Sci Rep 2020; 10:20794. [PMID: 33247228 PMCID: PMC7695725 DOI: 10.1038/s41598-020-77882-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 11/17/2020] [Indexed: 11/16/2022] Open
Abstract
To assess subclinical cardiac function impairment in Duchenne dystrophy (DMD) female carriers. Forty-four female subjects proved as DMD carriers underwent echocardiographic examination including tissue Doppler imaging (TDI) of mitral and tricuspid annulus. Seventeen age-matched healthy female subjects served as controls. A significant differences in peak systolic annular velocity (Sa) between carriers and controls were found for lateral and septal part of the mitral annulus and for tricuspid annulus (0.09 vs. 0.11 m/s, p < 0.001, 0.08 vs. 0.09 m/s, p < 0.01 and 0.13 vs. 0.14 m/s, p = 0.02 respectively). There was also difference in early diastolic velocity (Ea) of the septal part of the mitral annulus (0.11 vs. 0.13 m/s, p = 0.03). The subclinical deterioration of systolic function is presented even in asymptomatic DMD female carriers.
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Affiliation(s)
- Vladimír Kincl
- Department of Internal Medicine/Cardiology, Faculty of Medicine, St. Anne's University Hospital, Masaryk University, Brno, Czech Republic. .,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.
| | - Roman Panovský
- Department of Internal Medicine/Cardiology, Faculty of Medicine, St. Anne's University Hospital, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
| | - Martin Pešl
- Department of Internal Medicine/Cardiology, Faculty of Medicine, St. Anne's University Hospital, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jan Máchal
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lenka Juříková
- Department of Pediatric Neurology, Faculty of Medicine, University Hospital Brno, Masaryk University, Brno, Czech Republic
| | - Jana Haberlová
- Department of Pediatric Neurology, Second Faculty of Medicine, University Hospital Motol, Charles University, Prague, Czech Republic
| | - Lucia Masárová
- Department of Internal Medicine/Cardiology, Faculty of Medicine, St. Anne's University Hospital, Masaryk University, Brno, Czech Republic.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic
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12
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Masárová L, Mojica-Pisciotti ML, Panovský R, Kincl V, Pešl M, Opatřil L, Máchal J, Novák J, Holeček T, Juříková L, Feitová V. Decreased Global Strains of LV in Asymptomatic Female Duchenne Muscular Dystrophy Gene Carriers Using CMR-FT. JACC Cardiovasc Imaging 2020; 14:1070-1072. [PMID: 33221218 DOI: 10.1016/j.jcmg.2020.09.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 09/23/2020] [Accepted: 09/24/2020] [Indexed: 01/29/2023]
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13
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Jež J, Caluori G, Jadczyk T, Lehar F, Pešl M, Kulík T, Bělašková S, Kubeš V, Stárek Z. Remotely Navigated Ablations in Ventricle Myocardium Result in Acute Lesion Size Comparable to Force-Sensing Manual Navigation. Circ Arrhythm Electrophysiol 2019; 12:e007644. [DOI: 10.1161/circep.119.007644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jiří Jež
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- First Department of Internal Medicine – Cardioangiology (J.J., F.L., M.P., Z.S.), Masaryk University, Brno, Czech Republic
| | - Guido Caluori
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- Faculty of Medicine, and CEITEC MU (G.C.), Masaryk University, Brno, Czech Republic
| | - Tomasz Jadczyk
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- Department of Cardiology and Structural Heart Diseases, Medical University of Silesia, Katowice, Poland (T.J.)
| | - František Lehar
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- First Department of Internal Medicine – Cardioangiology (J.J., F.L., M.P., Z.S.), Masaryk University, Brno, Czech Republic
| | - Martin Pešl
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- Department of Biology (M.P.), Masaryk University, Brno, Czech Republic
- First Department of Internal Medicine – Cardioangiology (J.J., F.L., M.P., Z.S.), Masaryk University, Brno, Czech Republic
| | - Tomáš Kulík
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
| | - Silvie Bělašková
- Biostatistics (S.B.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
| | - Václav Kubeš
- Department of Pathology (V.K.), Masaryk University, Brno, Czech Republic
| | - Zdeněk Stárek
- Interventional Cardiac Electrophysiology (J.J., G.C., T.J., F.L., M.P., T.K., Z.S.), International Clinical Research Center of St Anne’s University Hospital, Brno, Czech Republic
- First Department of Internal Medicine – Cardioangiology (J.J., F.L., M.P., Z.S.), Masaryk University, Brno, Czech Republic
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14
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Panovský R, Pešl M, Holeček T, Máchal J, Feitová V, Mrázová L, Haberlová J, Slabá A, Vít P, Stará V, Kincl V. Cardiac profile of the Czech population of Duchenne muscular dystrophy patients: a cardiovascular magnetic resonance study with T1 mapping. Orphanet J Rare Dis 2019; 14:10. [PMID: 30626423 PMCID: PMC6327529 DOI: 10.1186/s13023-018-0986-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/21/2018] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The progressive cardiomyopathy that develops in boys with Duchenne and Becker muscular dystrophy (DMD/BMD) is presumed to be a secondary consequence of the fibrosis within the myocardium. There are only limited data on using parametric imaging in these patients. The purpose of this study was to assess native T1 and extracellular volume (ECV) values in DMD patients. METHODS The Czech population of males with DMD/BMD was screened. All eligible patients fulfilling the inclusion criteria were included. Forty nine males underwent cardiac magnetic resonance (MR) examination including T1 native and post-contrast mapping measurements. One DMD patient and all BMD patients were excluded from statistical analysis. Three groups were compared - Group D1 - DMD patients without late gadolinium enhancement (LGE) (n = 23), Group D2 - DMD patients with LGE (n = 20), and Group C - gender matched controls (n = 13). RESULTS Compared to controls, both DMD groups had prolonged T1 native relaxation time. These results are concordant in all 6 segments as well as in global values (1041 ± 31 ms and 1043 ± 37 ms vs. 983 ± 15 ms, both p < 0.05). Group D2 had significantly increased global ECV (0.28 ± 0.044 vs. 0.243 ± 0.013, p < 0.05) and segmental ECV in inferolateral and anterolateral segments in comparison with controls. The results were also significant after adjustment for subjects' age. CONCLUSION DMD males had increased native T1 relaxation time independent of the presence or absence of myocardial fibrosis. Cardiac MR may provide clinically useful information even without contrast media administration.
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Affiliation(s)
- Roman Panovský
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic. .,1st Department of Internal Medicine/Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
| | - Martin Pešl
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,1st Department of Internal Medicine/Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tomáš Holeček
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
| | - Jan Máchal
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Věra Feitová
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,Department of Medical Imaging, St. Anne's University Hospital, Brno, Czech Republic
| | - Lenka Mrázová
- Department of Pediatric Neurology, University Hospital Brno, Brno, Czech Republic
| | - Jana Haberlová
- Department of Pediatric Neurology, University Hospital Motol, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Alžběta Slabá
- Department of Pediatric Neurology, University Hospital Motol, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Pavel Vít
- Pediatric Clinic, University Hospital Brno, Brno, Czech Republic
| | - Veronika Stará
- Department of Pediatrics, University Hospital Motol, Second Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Vladimír Kincl
- International Clinical Research Center, St. Anne's University Hospital, Brno, Czech Republic.,1st Department of Internal Medicine/Cardioangiology, St. Anne's University Hospital, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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15
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Pribyl J, Pešl M, Caluori G, Acimovic I, Jelinkova S, Dvorak P, Skladal P, Rotrekl V. Biomechanical Characterization of Human Pluripotent Stem Cell-Derived Cardiomyocytes by Use of Atomic Force Microscopy. Methods Mol Biol 2019; 1886:343-353. [PMID: 30374878 DOI: 10.1007/978-1-4939-8894-5_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Atomic force microscopy (AFM) is not only a high-resolution imaging technique but also a sensitive tool able to study biomechanical properties of bio-samples (biomolecules, cells) in native conditions-i.e., in buffered solutions (culturing media) and stable temperature (mostly 37 °C). Micromechanical transducers (cantilevers) are often used to map surface stiffness distribution, adhesion forces, and viscoelastic parameters of living cells; however, they can also be used to monitor time course of cardiomyocytes contraction dynamics (e.g. beating rate, relaxation time), together with other biomechanical properties. Here we describe the construction of an AFM-based biosensor setup designed to study the biomechanical properties of cardiomyocyte clusters, through the use of standard uncoated silicon nitride cantilevers. Force-time curves (mechanocardiograms, MCG) are recorded continuously in real time and in the presence of cardiomyocyte-contraction affecting drugs (e.g., isoproterenol, metoprolol) in the medium, under physiological conditions. The average value of contraction force and the beat rate, as basic biomechanical parameters, represent pharmacological indicators of different phenotype features. Robustness, low computational requirements, and optimal spatial sensitivity (detection limit 200 pN, respectively 20 nm displacement) are the main advantages of the presented method.
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Affiliation(s)
- Jan Pribyl
- CEITEC MU, Masaryk University, Brno, Czech Republic
| | - Martin Pešl
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
- ICRC, St. Anne's University Hospital, Brno, Czech Republic
- Faculty of Medicine, First Department of Internal Medicine-Cardioangiology, Masaryk University, Brno, Czech Republic
| | - Guido Caluori
- CEITEC MU, Masaryk University, Brno, Czech Republic
- ICRC, St. Anne's University Hospital, Brno, Czech Republic
| | - Ivana Acimovic
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Sarka Jelinkova
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
| | - Petr Dvorak
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic
- ICRC, St. Anne's University Hospital, Brno, Czech Republic
| | - Petr Skladal
- CEITEC MU, Masaryk University, Brno, Czech Republic
| | - Vladimir Rotrekl
- Faculty of Medicine, Department of Biology, Masaryk University, Brno, Czech Republic.
- ICRC, St. Anne's University Hospital, Brno, Czech Republic.
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16
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Golan M, Přibyl J, Pešl M, Jelínková Š, Acimovic I, Jaroš J, Rotrekl V, Falk M, Skládal P, Kratochvílová I. Human fibroblast post-thaw regeneration monitored by afm and fluorescence microscopy. Cryobiology 2018. [DOI: 10.1016/j.cryobiol.2018.10.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Golan M, Jelinkova S, Kratochvílová I, Skládal P, Pešl M, Rotrekl V, Pribyl J. AFM Monitoring the Influence of Selected Cryoprotectants on Regeneration of Cryopreserved Cells Mechanical Properties. Front Physiol 2018; 9:804. [PMID: 30008675 PMCID: PMC6034176 DOI: 10.3389/fphys.2018.00804] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 06/08/2018] [Indexed: 12/02/2022] Open
Abstract
Cryopreservation of cells (mouse embryonic fibroblasts) is a fundamental task for wide range of applications. In practice, cells are protected against damage during freezing by applications of specific cryoprotectants and freezing/melting protocols. In this study by using AFM and fluorescence microscopy we showed how selected cryoprotectants (dimethyl sulfoxide and polyethylene glycol) affected the cryopreserved cells mechanical properties (stiffness) and how these parameters are correlated with cytoskeleton damage and reconstruction. We showed how cryopreserved (frozen and thawed) cells' stiffness change according to type of applied cryoprotectant and its functionality in extracellular or intracellular space. We showed that AFM can be used as technique for investigation of cryopreserved cells surfaces state and development ex vivo. Our results offer a new perspective on the monitoring and characterization of frozen cells recovery by measuring changes in elastic properties by nanoindentation technique. This may lead to a new and detailed way of investigating the post-thaw development of cryopreserved cells which allows to distinguish between different cell parts.
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Affiliation(s)
- Martin Golan
- Department of Analysis of Functional Materials, Institute of Physics, Academy of Sciences Czech Republic, Prague, Czechia
| | - Sarka Jelinkova
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Irena Kratochvílová
- Department of Analysis of Functional Materials, Institute of Physics, Academy of Sciences Czech Republic, Prague, Czechia
| | - Petr Skládal
- Central European Institute of Technology, Masaryk University, Brno, Czechia
| | - Martin Pešl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia.,First Department of Internal Medicine/Cardioangiology, Masaryk University, Brno, Czechia
| | - Vladimír Rotrekl
- Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czechia.,International Clinical Research Center, St. Anne's University Hospital, Brno, Czechia
| | - Jan Pribyl
- Central European Institute of Technology, Masaryk University, Brno, Czechia
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18
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Caluori G, Wojtaszczyk A, Pešl M, Stárek Z. Irreversible electroporation-Let's keep it cool. J Cardiovasc Electrophysiol 2018; 29:E12. [PMID: 29709095 DOI: 10.1111/jce.13619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 04/24/2018] [Indexed: 12/01/2022]
Affiliation(s)
- Guido Caluori
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,CEITEC, Masaryk University, Brno, Czech Republic
| | - Adam Wojtaszczyk
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Martin Pešl
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.,First Department of Internal Medicine/Cardioangiology, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic
| | - Zdeněk Stárek
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,First Department of Internal Medicine/Cardioangiology, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic
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19
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Wojtaszczyk A, Caluori G, Pešl M, Melajova K, Stárek Z. Irreversible electroporation ablation for atrial fibrillation. J Cardiovasc Electrophysiol 2018; 29:643-651. [PMID: 29399927 DOI: 10.1111/jce.13454] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/24/2018] [Accepted: 01/25/2018] [Indexed: 02/06/2023]
Abstract
Atrial fibrillation (AF) is one of the most important problems in modern cardiology. Thermal ablation therapies, especially radiofrequency ablation (RF), are currently "gold standard" to treat symptomatic AF by localized tissue necrosis. Despite the improvements in reestablishing sinus rhythm using available methods, both success rate and safety are limited by the thermal nature of procedures. Thus, while keeping the technique in clinical practice, safer and more versatile methods of removing abnormal tissue are being investigated. This review focuses on irreversible electroporation (IRE), a nonthermal ablation method, which is based on the unrecoverable permeabilization of cell membranes caused by short pulses of high voltage/current. While still in its preclinical steps for what concerns interventional cardiac electrophysiology, multiple studies have shown the efficacy of this method on animal models. The observed remodeling process shows this technique as tissue specific, triggering apoptosis rather than necrosis, and safer for the structures adjacent the myocardium. So far, proposed IRE methodologies are heterogeneous. The number of devices (both generators and applicators), techniques, and therapeutic goals impair the comparability of performed studies. More questions regarding systemic safety and optimal processes for AF treatment remain to be answered. This work provides an overview of the electroporation process, and presents different results obtained by cardiology-oriented research groups that employ IRE ablation, with focus of AF-related targets. This contribution on the topic aspires to be a practical guide to approach IRE ablation for cardiac arrhythmias, and to highlight controversial features and existing knowledge, to provide background for future improved experimentation with IRE in arrhythmology.
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Affiliation(s)
- Adam Wojtaszczyk
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,3rd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Guido Caluori
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,CEITEC, Masaryk University, Brno, Czech Republic
| | - Martin Pešl
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,First Department of Internal Medicine/Cardioangiology, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Katarina Melajova
- First Department of Internal Medicine/Cardioangiology, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic
| | - Zdeněk Stárek
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,First Department of Internal Medicine/Cardioangiology, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic
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20
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Krutá M, Šeneklová M, Raška J, Salykin A, Zerzánková L, Pešl M, Bártová E, Franek M, Baumeisterová A, Košková S, Neelsen KJ, Hampl A, Dvořák P, Rotrekl V. Mutation frequency dynamics in HPRT locus in culture-adapted human embryonic stem cells and induced pluripotent stem cells correspond to their differentiated counterparts. Stem Cells Dev 2014; 23:2443-54. [PMID: 24836366 DOI: 10.1089/scd.2013.0611] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The genomic destabilization associated with the adaptation of human embryonic stem cells (hESCs) to culture conditions or the reprogramming of induced pluripotent stem cells (iPSCs) increases the risk of tumorigenesis upon the clinical use of these cells and decreases their value as a model for cell biology studies. Base excision repair (BER), a major genomic integrity maintenance mechanism, has been shown to fail during hESC adaptation. Here, we show that the increase in the mutation frequency (MF) caused by the inhibition of BER was similar to that caused by the hESC adaptation process. The increase in MF reflected the failure of DNA maintenance mechanisms and the subsequent increase in MF rather than being due solely to the accumulation of mutants over a prolonged period, as was previously suggested. The increase in the ionizing-radiation-induced MF in adapted hESCs exceeded the induced MF in nonadapted hESCs and differentiated cells. Unlike hESCs, the overall DNA maintenance in iPSCs, which was reflected by the MF, was similar to that in differentiated cells regardless of the time spent in culture and despite the upregulation of several genes responsible for genome maintenance during the reprogramming process. Taken together, our results suggest that the changes in BER activity during the long-term cultivation of hESCs increase the mutagenic burden, whereas neither reprogramming nor long-term propagation in culture changes the MF in iPSCs.
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Affiliation(s)
- Miriama Krutá
- 1 Department of Biology, Faculty of Medicine, Masaryk University , Brno, Czech Republic
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Panovský R, Kukla P, Jančár R, Meluzín J, Jančík J, Kincl V, Poloková K, Mífková L, Havelková A, Látalová R, Dobšák P, Pešl M. The effect of regular physical activity on the left ventricle systolic function in patients with chronic coronary artery disease. Physiol Res 2011; 60:869-75. [PMID: 21995899 DOI: 10.33549/physiolres.932162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The purpose of this study was to assess the influence of aerobic training on the left ventricular (LV) systolic function. Thirty patients with stable coronary artery disease, who had participated in the conducted 3-month physical training, were retrospectively divided into 2 cohorts. While patients in the cohort I (n=14) had continued training individually for 12 months, patients in the cohort II (n=16) had stopped training after finishing the conducted program. Rest and stress dobutamine/atropine echocardiography was performed in all patients before the training program and 1 year later. The peak systolic velocities of mitral annulus (Sa) were assessed by tissue Doppler imaging for individual LV walls. In addition, to determine global LV systolic longitudinal function, the four-site mean systolic velocity was calculated (Sa glob). According to the blood supply, left ventricular walls were divided into 5 groups: A- walls supplied by nonstenotic artery; B- walls supplied by coronary artery with stenosis ≤50 %; C- walls supplied by coronary artery with stenosis 51-70 %; D- walls with stenosis of supplying artery 71-99 %; and E- walls with totally occluded supplying artery. In global systolic function, the follow-up values of Sa glob in cohort I were improved by 0.23±0.36 as compared with baseline values at rest, and by 1.26±0.65 cm/s at the maximal load, while the values of Sa glob in cohort II were diminished by 0.53±0.22 (p=NS), and by 1.25±0.45 cm/s (p<0.05), respectively. Concerning the resting regional function, the only significant difference between cohorts in follow-up changes was found in walls E: 0.37±0.60 versus -1.76±0.40 cm/s (p<0.05). At the maximal load, the significant difference was found only in walls A (0.16±0.84 versus -2.67±0.87 cm/s; p<0.05). Patients with regular 12-month physical activity improved their global left ventricle systolic function mainly due to improvement of contractility in walls supplied by a totally occluded coronary artery.
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Affiliation(s)
- R Panovský
- First Department of Internal Medicine/Cardioangiology, International Clinical Research Center-ICRC, St. Anne´s Hospital, Masaryk University, Brno, Czech Republic.
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Pešl M, Skopalik J, Stepan J, Ihnatova I, Starcuk Z, Prasek J, Kára T. Visualization, tracking and quantification of bone-marrow mesenchymal cells homing in rabbit heart (nanoparticles labeling and imaging by magnetic resonance and SPECT). J Stem Cells Regen Med 2010; 6:63-64. [PMID: 24693084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- M Pešl
- Department of Cardioangiology, St Anna Hospital, ICRC, Masaryk University , Brno
| | - J Skopalik
- Faculty of Medicine - Masaryk University , Brno, Cz
| | - J Stepan
- Department of Nuclear Medicine, University Hospital , Brno, Cz
| | - I Ihnatova
- Faculty of Science - Masaryk University , Brno, Cz
| | - Z Starcuk
- Institute of Scientific Instruments , Brno, Cz
| | - J Prasek
- Department of Nuclear Medicine, University Hospital , Brno, Cz
| | - T Kára
- Department of Cardioangiology, St Anna Hospital, ICRC, Masaryk University , Brno
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Babjuk M, Soukup V, Pešl M, Koštířová M, Drncová E, Smolová H, Szakacsová M, Getzenberg R, Pavlík I, Dvořáček J. Urinary Cytology and Quantitative BTA and UBC Tests in Surveillance of Patients with pTapT1 Bladder Urothelial Carcinoma. Urology 2008; 71:718-22. [DOI: 10.1016/j.urology.2007.12.021] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2007] [Revised: 11/25/2007] [Accepted: 12/04/2007] [Indexed: 01/25/2023]
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