1
|
Ismaili D, Gurr K, Horvath A, Yuan L, Lemoine MD, Schulz C, Sani J, Petersen J, Reichenspurner H, Kirchhof P, Jespersen T, Eschenhagen T, Hansen A, Koivumaki JT, Christ T. Regulation of APD and force by Na+/Ca2+ exchanger in hiPSC-cardiomyocytes. Europace 2022. [DOI: 10.1093/europace/euac053.625] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): BMBF
Introduction
Human induced pluripotent stem cell-derived cardiomyocytes (HiPSC-CM) are an emerging, powerful tool to study human cardiac physiology, pharmacology and toxicology, to model cardiovascular diseases or even to use for cardiac repair. Understanding the similarities and differences between hiPSC-CM and adult human cardiomyocytes is critical for their use. Here we focus on sodium calcium exchanger (NCX) who plays a crucial role in the Ca2+-homeostasis in the mammalian heart. Importantly, alterations in NCX expression in human heart are associated with various cardiac pathologies such as heart failure or arrhythmias. In order to investigate whether hiPSC-CM could serve as model for adult human heart NCX we measured the properties of NCX in hiPSC-CM and human ventricular tissue. Rat ventricular tissue was used for comparison.
Methods
HiPSC-CM were differentiated from a healthy iPSC line and dissociated from engineered heart tissue (EHT). Adult human and rat cardiomyocytes were digested from ventricular samples. We measured NCX current by the whole-cell patch clamp technique at 37 °C. Standard sharp microelectrodes were used to record action potentials (AP). Contractile force in human and rat ventricular samples was measured isometrically. A video-optical contractility test system was used to measure force in EHT. SEA0400 (10 µM) was used to block NCX.
Results
NCX currents could be measured in every hiPSC-CM. The NCX current densities in hiPSC-CM were larger than in human ventricular cardiomyocytes (3.2±0.2 pA/pF n=28 vs. 1.3±0.2 pA/pF n=15, p<0.05), but lower than reported for rat left ventricular cardiomyocytes using the same protocol. SEA0400 shortened APD90 markedly in EHT (264.1±24.9 ms to 191±31.6 ms, n=4) and to a lesser extent in rat ventricular tissue (54.4±3.9 ms to 48.9±4.2 ms, n=7). Shortening in human left ventricular preparations was tiny (320±22.1 ms to 305.5±20.3 ms, n=6) and not different from time-matched controls (TMC). Resting membrane potential, action potential amplitude and upstroke velocity were not affected neither in EHT nor in left ventricular preparations (rat and human). Force was significantly increased by NCX block in rat ventricle (by 31±5.4%, n=18) and EHT (by 20.8±3.9%, n=4), but in human left ventricular preparations there was only a tendency to attenuate spontaneous run-down (-3.7±4.3% n=8 with SEA vs. -6.2±3.7% n=12 in TMC).
Conclusion
HiPSC-CM possess NCX in the physiological range. HiPSC-CM show NCX-effects on APD and force as predicted from rat ventricle and in full accordance with cardiac physiology. Lack of NCX effect in human adult ventricles that had been already reported previously needs further investigations.
Collapse
Affiliation(s)
- D Ismaili
- University Heart & Vascular Center Hamburg, Department of Cardiology, Hamburg, Germany
| | - K Gurr
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - A Horvath
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - L Yuan
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - MD Lemoine
- University Heart & Vascular Center Hamburg, Department of Cardiology, Hamburg, Germany
| | - C Schulz
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - J Sani
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - J Petersen
- University Heart & Vascular Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - H Reichenspurner
- University Heart & Vascular Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - P Kirchhof
- University Heart & Vascular Center Hamburg, Department of Cardiology, Hamburg, Germany
| | - T Jespersen
- University of Copenhagen, Department of Biomedical Sciences, Copenhagen, Denmark
| | - T Eschenhagen
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - A Hansen
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - JT Koivumaki
- Tampere University, BioMediTech, Faculty of Medicine and Health Technology, Tampere, Finland
| | - T Christ
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| |
Collapse
|
2
|
Sima S, Qaiyumi D, Yeter A, Sündermann SH, Grubitzsch H, Falk V, Christ T. Surgical Revascularization in Cardiogenic Shock Due to NSTEMI. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742880] [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: 10/19/2022]
Affiliation(s)
- S. Sima
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - D. Qaiyumi
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - A. Yeter
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - S. H. Sündermann
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - H. Grubitzsch
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - V. Falk
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - T. Christ
- Department of cardiovascular surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| |
Collapse
|
3
|
Qaiyumi D, Yeter A, Sündermann SH, Grubitzsch H, Falk V, Christ T. Dual-Antiplatelet Therapy Prior to Surgical Revascularization Due to NSTEMI. Thorac Cardiovasc Surg 2022. [DOI: 10.1055/s-0042-1742791] [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: 10/19/2022]
Affiliation(s)
- D. Qaiyumi
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - A. Yeter
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - S. H. Sündermann
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - H. Grubitzsch
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - V. Falk
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| | - T. Christ
- Department of Cardiovascular Surgery, Charité – Universitätsmedizin Berlin, Berlin, Deutschland
| |
Collapse
|
4
|
Ismaili D, Gurr K, Horvath A, Hansen A, Eschenhagen T, Christ T. Culture conditions effect properties of the Na+/K+-ATPase pump current in hiPSC cardiomyocytes. Europace 2021. [DOI: 10.1093/europace/euab116.577] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): BMBF
Background
Cardiomyocytes derived from human induced pluripotent stem cells (hiPSC) provide an opportunity to study human cardiac physiology and pathophysiology or to use for cardiac repair as well as for cardiovascular drug testing. Suitability for these purposes requires generating hiPSC cardiomyocytes that share typical electrophysiological properties of adult human cardiomyocytes. In the human heart the Na+/K+-ATPase pump current plays a major role in the regulation of contractile force and electrical stability. So far there are no data about Na+/K+-ATPase pump current function in hiPSC cardiomyocytes available.
Purpose
We compared the properties of Na+/K+-ATPase pump current in hiPSC cardiomyocytes from conventional monolayers (ML) culture to three-dimensional engineered heart tissue (EHT).
Methods
HiPSC cardiomyocytes differentiated from in-house control hiPSC cell line C25 were dissociated from ML and EHT culture. Na+/K+-ATPase pump current was recorded by whole-cell patch clamp technique at 37°C. The holding potential was -40 mV to inactivate sodium current. Current was measured in the absence of K+ and after adding 5.4 mM potassium chloride (KCL). Na+/K+-ATPase pump current was defined as the ouabain (10 µM) sensitive current. Voltage-dependency of Na+/K+-ATPase pump was determined using rectangular voltage pulses (increasing from -120 mV to +60 mV).
Results
Outwardly directed Na+/K+-ATPase pump could be recorded at -40 mV when KCL was added to the bath solution (5.4 mM). Currents were larger in EHT than in ML (0.8 ± 0.08 pA/pF n = 16 ML vs. 1.29 ± 0.13 pA/pF n = 28 EHT; p < 0.05). The K+-induced outward current was abolished by ouabain. The K+- and ouabain-sensitive current densities were similar in size (0.84 ± 0.11 pA/pF n = 16 ML vs. 1.12 ± 0.11 pA/pF n = 28 EHT for ouabain), indicating the measured K+-induced current was Na+/K+-ATPase pump current. Increasing extracellular K+-concentration in a stepwise manner (0,25 mM, 0,5 mM, 1 mM, 2 mM, 5,4 mM and 10 mM) showed a concentration-dependent relationship to Na+/K+-ATPase pump current with throughout higher current densities in EHT compared to ML (sensitivity to K+ not different). Na+/K+-ATPase pump current showed expected voltage-dependency with +0.23 ± 0.13 pA/pF at -120 mV and +0.89 ± 0.16 pA/pF at +60 mV (n= 18) in ML and with +0.71 ± 0.17 pA/pF at -120 mV and +1.2 ± 0.2 pA/pF at +60 mV (n= 24) in EHT.
Conclusion
HiPSC cardiomyocytes possess Na+/K+-ATPase pump current. Current density is in the range of human cardiomyocytes in EHT but substantially smaller in ML. 3D culturing may be needed to develop the physiological properties of Na+/K+-ATPase pump current.
Collapse
Affiliation(s)
- D Ismaili
- University Heart & Vascular Center Hamburg, Department of Cardiology, Hamburg, Germany
| | - K Gurr
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - A Horvath
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - A Hansen
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - T Eschenhagen
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - T Christ
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| |
Collapse
|
5
|
Petersen J, Castro L, Bengaard AK, Pecha S, Steenpass A, Meyer C, Reichenspurner H, Jespersen T, Eschenhagen T, Christ T. IK,ACh Does Not Mediate Negative Inotropy and Antiarrhythmic Action of Muscarinic Receptor Activation in Human Atrium. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725598] [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: 10/21/2022]
|
6
|
Qaiyumi D, Sima S, Grubitzsch H, Falk V, Sündermann SH, Christ T. Rethinking Surgical NSTEMI Treatment. Thorac Cardiovasc Surg 2021. [DOI: 10.1055/s-0041-1725625] [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: 10/21/2022]
|
7
|
Christ T, Borck R, Falk V, Grubitzsch H. Propensity-Matched Long-Term Analysis of Mechanical versus Stentless Bioprostheses for Aortic Valve Replacement in Younger Patients. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705484] [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: 10/24/2022]
|
8
|
Kloth B, Bernhardt A, Barten M, Eschenhagen T, Reichenspurner H, Christ T. Human Ventricular Tissue for Experimental Studies: A New Source? Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705383] [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: 10/24/2022]
|
9
|
Petersen J, Kloth B, Grammatika-Pavlidou N, Eschenhagen T, Reichenspurner H, Nikolaev VO, Christ T, Molina CE, Girdauskas E. P5992Why aortic valve disease may persist after surgery? A joint basic science - Clinical effort. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0713] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Diseases of the aortic valve are a common reason for heart surgery. Aortic stenosis (AS) is associated with pressure and aortic regurgitation (AR) with a volume overload of the left ventricle (LV). Over time both pathologies lead to systolic and diastolic heart failure, while progressive downregulation of β-adrenoceptors occurs. While LV re-remodeling occurs in the majority of patients after aortic valve surgery, LV dysfunction persists in one fourth of such patients and leads to a terminal heart failure. We aimed to investigate whether differential remodeling in the protein kinase A (PKA) dependent inotropic response in myocytes and myocardial tissue obtained from patients undergoing aortic valve surgery is associated with the LV re-remodeling after surgery.
Methods
Preoperatively, pro BNP levels were measured and left ventricular strain analysis via echocardiography was performed. Interventricular septal biopsy was obtained intraoperatively in 10 patients who underwent aortic valve surgery. In-vitro contractility was analyzed in myocardial tissue paced with 4 Hz at 37 °C. Freshly isolated cells were transduced with an adenovirus expressing a cytosolic Förster resonance energy transfer (FRET) based cAMP biosensor (Epac1-camps). After 48 hours of culture, Föster-resonance energy transfer (FRET) was used for the first time to measure cAMP in 60 isolated human ventricular myocytes. Isoprenaline (10 nM – 10 μM) was used for β-adrenoceptor activation and forskolin (10 μmol) to activate adenylyl cyclase directly.
Results
We found a significantly downregulated β-adrenergic sensitivity in cardiomyocytes of patients with aortic valve disease, although contractile response to forskolin was maintained. Furthermore, we found a clear association between reduced sensitivity to isoprenaline (i.e., high EC50 values) and low maximum effect size to isoprenaline in myocardial tissue of patients with aortic valve disease, pointing out relevant β-adrenoceptor dysfunction. There were no significant differences in basal myocardial force between tissue samples of patients with AR and AS.
Conclusion
Collectively, our data show a profound remodelling in the cAMP/PKA pathway in patients with aortic valve disease. These disturbances may have an impact on the postoperative ventricular function and possibly on the long-term LV re-remodelling after aortic valve surgery.
Collapse
Affiliation(s)
- J Petersen
- University Heart Center Hamburg, Hamburg, Germany
| | - B Kloth
- University Heart Center Hamburg, Hamburg, Germany
| | - N Grammatika-Pavlidou
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| | - T Eschenhagen
- University Medical Center Hamburg Eppendorf, Department of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | | | - V O Nikolaev
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| | - T Christ
- University Medical Center Hamburg Eppendorf, Department of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - C E Molina
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| | - E Girdauskas
- University Heart Center Hamburg, Hamburg, Germany
| |
Collapse
|
10
|
Grammatika Pavlidou N, Pecha S, Reichenspurner H, Christ T, Nikolaev VO, Molina CE. P2869Role of PDE8 in cAMP dynamics in human atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1177] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Cardiac arrhythmias, such as atrial fibrillation (AF), are often related to remodeling of membrane receptors and alterations in cAMP-dependent regulation of Ca2+ handling mechanisms. For instance, decreased L-type calcium current (ICa,L) density but upregulated RyR2 are major hallmarks of AF. These inhomogeneous AF-associated changes of protein phosphorylation point to a local regulation of PKA activity within these intracellular compartments. Local cAMP compartmentation and the role of phosphodiesterase (PDEs) have ben extensively studied in ventricular myocytes from animals. However, only a few studies have evaluated the contribution of PDEs to the pathophysiology of AF and the reason for the persistent AF-associated hypophosphorylation of the L-type calcium channel (LTCC) is currently unknown. The aim of this study was to investigate whether a change in the expression level of PDE8 in human atrium may affects cAMP nearby LTCC promoting the reduction of the ICa,L observed in persistent AF.
Methods
Atrial myocytes were isolated from tissue of 47 patients in sinus rhythm (SR) and with AF. Cells were then transfect with an adenovirus (Epac1-camps or pm-Epac1-camps) in order to express the (cytosolic or membrane, respectively) FRET-based cAMP sensor and cultured during 48 hours. Föster-resonance energy transfer (FRET) was used to measure cAMP in 232 isolated human atrial myocytes. Ro-20-1724 (10 μM), Cilostamide (1 μM) and PF-04957325 (30 nM) and IBMX (100 μM) were used as PDE4, PDE3, PDE8 and non-selective phosphodiesterases (PDEs) inhibitor respectively.
Results
Effects of PDE4 and especially PDE3 inhibition on cytosolic [cAMP] are reduced in AF. Pharmacological PDE8 inhibition induces only a small increase in basal intracellular [cAMP] in AF but it showed a big synergic effect when PDE4 was inhibit at the same time. By contrast, PDE8 inhibition dramatically increased basal [cAMP] in the subsarcolemmal compartment in AF while PDE3 or PDE4 inhibition had a smaller effect that didn't change between SR and AF.
Conclusions
PDE8 controls basal cytosolic cAMP levels in human atrial myocytes from patients with persistent AF while PDE3 effects tends to be reduced in these patients. Furthermore, PDE8 is the main PDE in controlling cAMP levels at the membrane in persistent AF. Thus, our study may provide a clue for the reported reduction of the ICa,L in persistent AF.
Collapse
Affiliation(s)
- N Grammatika Pavlidou
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| | - S Pecha
- University Heart Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - H Reichenspurner
- University Heart Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - T Christ
- University Medical Center Hamburg Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - V O Nikolaev
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| | - C E Molina
- University Medical Center Hamburg Eppendorf, Institute of Experimental Cardiovascular Research, Hamburg, Germany
| |
Collapse
|
11
|
Bork NI, Pavlidou NG, Reiter B, Reichenspurner H, Christ T, Nikolaev VO, Molina CE. P2863Regional specific remodeling of cGMP pathway in human atrial fibrillation. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1172] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Atrial fibrillation (AF) is accompanied by a profound remodeling of membrane receptors and alterations in cyclic nucleotides-dependent regulation of Ca2+-handling. Thus, while basal ryanodine receptors activity is upregulated, L-type calcium current (ICa,L) density is diminish in AF, due to local microdomain-specific cAMP dynamics. The same seems true for cGMP regulation in AF. In AF cGMP-mediated increase in ICa,L is blunted but NO-mediated attenuation of β-adrenoceptors stimulation-mediated increase is preserved. However, although the role of cGMP in controling atrial function and pathophysiology is controversial, no study has been ever performed in human myocytes to measure cGMP directly.
Methods
We isolated myocytes from the right and/or left atrium of 27 patients in sinus rhythm (SR), and with AF. Cells were then transfected with adenovirus to express the cytosolic FRET-based cGMP sensor red-cGES-DE5 and cultured for 48 hours. Förster resonance energy transfer (FRET) was used to measure cGMP in 61 living human atrial myocytes. We stimulated cells with the C-type natriuretic peptide CNP (100 nM and 1 μM), and the non-selective phosphodiesterases (PDEs) inhibitor IBMX (100 μM). Additionally, PDE specific inhibitors for PDE2 (Bay 60–7550, 100 nM) and PDE3 (Cilostamide, 10 μM) as well as inhibitor of the soluble guanylyl cyclase (ODQ, 50 μM) were used. We also measured PDE2 and PDE3 mRNA levels in atrial tissue samples from both groups of patients using RT-qPCR.
Results
We could show that stimulation with CNP increased cGMP levels in human atrial myocytes. However, in myocytes from patients with AF global cGMP responses to CNP and to IBMX was reduced compared to SR. Additionally, there was a difference in response to CNP and IBMX in patients with AF between the right and the left atria. Whereas in the right atria IBMX could further increase cGMP levels in the cell, in the left atria leaded to a reduction in cGMP levels. RT-qPCR showed a tendency of PDE3 to be reduced in AF. On the other hand, PDE2A gene expression was upregulated in the left atria.
Conclusions
We have shown that PDEs contributes cGMP signaling in the human atria and that they are involved in atrial pathophysiology. Now our data clearly show differences in cGMP regulation in cardiomyocytes isolated from left and right atrium from patients in atrial fibrillation and sinus rhythm. We observe a major role of PDEs, regulating cGMP pathway promoted by the reduced responses in AF, especially PDE2 in the left atria.
Collapse
Affiliation(s)
- N I Bork
- University Medical Center Hamburg Eppendorf, Experimental Cardiovascular Research, Hamburg, Germany
| | - N G Pavlidou
- University Medical Center Hamburg Eppendorf, Experimental Cardiovascular Research, Hamburg, Germany
| | - B Reiter
- University Heart Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - H Reichenspurner
- University Heart Center Hamburg, Department of Cardiovascular Surgery, Hamburg, Germany
| | - T Christ
- University Medical Center Hamburg Eppendorf, Department of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - V O Nikolaev
- University Medical Center Hamburg Eppendorf, Experimental Cardiovascular Research, Hamburg, Germany
| | - C E Molina
- University Medical Center Hamburg Eppendorf, Experimental Cardiovascular Research, Hamburg, Germany
| |
Collapse
|
12
|
Molina E, Dolce B, Pecha S, Garnier A, Dobrev D, Fischmeister R, Christ T, Reichenspurner H, Nikolaev V. PDE8 Mediates L-type Ca2+ Channels Dephosphorylation in Human Atrial Fibrillation. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678901] [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: 10/27/2022]
Affiliation(s)
- E. Molina
- Universitätsklinikum Hamburg-Eppendorf, Institut für Experimentelle Herz-Kreislaufforschung, Hamburg, Germany
| | - B. Dolce
- Universitätsklinikum Hamburg-Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - S. Pecha
- Department of Cardiovascular Surgery, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - A. Garnier
- Faculté de Pharmacie, Université Paris-Sud IX, Châtenay-Malabry, France
| | - D. Dobrev
- Institute of Pharmacology, West German Heart and Vascular Center, University Duisburg-Essen, Essen, Germany
| | - R. Fischmeister
- Faculté de Pharmacie, Université Paris-Sud IX, Châtenay-Malabry, France
| | - T. Christ
- Universitätsklinikum Hamburg-Eppendorf, Institute of Experimental Pharmacology and Toxicology, Hamburg, Germany
| | - H. Reichenspurner
- Department of Cardiovascular Surgery, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - V. Nikolaev
- Universitätsklinikum Hamburg-Eppendorf, Institut für Experimentelle Herz-Kreislaufforschung, Hamburg, Germany
| |
Collapse
|
13
|
Kloth B, Shahria I, Eschenhagen T, Reichenspurner H, Christ T, Girdauskas E. Functional In Vitro Myocardial Performance in Patients with Aortic Disease. Thorac Cardiovasc Surg 2019. [DOI: 10.1055/s-0039-1678958] [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: 10/27/2022]
Affiliation(s)
- B. Kloth
- Universitäres Herzzentrum Hamburg, Herzchirurgie, Hamburg, Germany
| | - I. Shahria
- Universitäres Herzzentrum Hamburg, Herzchirurgie, Hamburg, Germany
| | - T. Eschenhagen
- Experimentelle Pharmakologie und Toxikologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | | | - T. Christ
- Experimentelle Pharmakologie und Toxikologie, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - E. Girdauskas
- Universitäres Herzzentrum Hamburg, Herzchirurgie, Hamburg, Germany
| |
Collapse
|
14
|
Prondzynski M, Lemoine M, Horvath A, Krämer E, Zech A, Laufer S, Münch J, Redwood C, Christ T, Patten M, Hansen A, Eschenhagen T, Mearini G, Carrier L. CRISPR/Cas9 genome editing repairs a novel ACTN2 mutation and prevents the disease phenotype in human iPSC-derived cardiomyocytes and engineered heart tissue. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.033] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
15
|
Flenner F, Küpker N, Friedrich F, Jungen C, Kruse M, Soehren K, Meyer C, Eschenhagen T, Christ T, Carrier L. Ventricular arrhythmias and remodeling in a mouse model of hypertrophic cardiomyopathy. J Mol Cell Cardiol 2018. [DOI: 10.1016/j.yjmcc.2018.05.096] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
16
|
Zobel S, Christ T, Laule M, Dreger H, Stangl K, Falk V, Grubitzsch H. Redo Aortic Valve Replacement for Degenerated Bioprostheses: Risks and Outcome in the Transcatheter Valve Era. Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1627894] [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: 10/28/2022]
Affiliation(s)
- S. Zobel
- Department of Cardiovascular Surgery, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - T. Christ
- Department of Cardiovascular Surgery, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - M. Laule
- Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - H. Dreger
- Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - K. Stangl
- Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - V. Falk
- Department of Cardiovascular Surgery, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - H. Grubitzsch
- Department of Cardiovascular Surgery, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| |
Collapse
|
17
|
Lemoine M, Prondzynski M, Mearini G, Kraemer E, Redwood C, Patten M, Willems S, Hansen A, Eschenhagen T, Christ T, Carrier L. P5839Patient-specific iPSC-derived cardiomyocytes reveal a disease-causing role of an ACTN2 mutation in HCM and an unexpected LQT phenotype. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p5839] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
18
|
Horvath A, Gurr K, Ismaili D, Mannhardt I, Ulmer B, Hansen A, Eschenhagen T, Christ T. 103Properties of the sodium-calcium exchanger and the Na+/K+-ATPase in human induced pluripotent stem cell-derived cardiomyocytes. Europace 2017. [DOI: 10.1093/ehjci/eux134] [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: 11/13/2022] Open
|
19
|
Lemme M, Ulmer B, Zech ATL, Christ T, Eschenhagen T. P1587Retinoic acid-treated HIPSC-CM: a suitable model for human atrium? Europace 2017. [DOI: 10.1093/ehjci/eux158.213] [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: 11/13/2022] Open
|
20
|
Kloth B, Murderchsbach E, Söhren K, Reichenspurner H, Eschenhagen T, Christ T. Effects of Akrinor and Its Constituents on Basal and Norepinephrine Increased Tone in Human Internal Mammary Arteries. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598941] [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: 10/20/2022]
Affiliation(s)
- B. Kloth
- Universitäres Herzzentrum Hamburg, Herzchirurgie, Hamburg, Germany
| | - E. Murderchsbach
- Universitätsklinik Hamburg, Experimentelle Pharmakologie und Toxikologie, Hamburg, Germany
| | - K. Söhren
- Universitätsklinik Hamburg, Experimentelle Pharmakologie und Toxikologie, Hamburg, Germany
| | | | - T. Eschenhagen
- Universitätsklinik Hamburg, Experimentelle Pharmakologie und Toxikologie, Hamburg, Germany
| | - T. Christ
- Universitätsklinik Hamburg, Experimentelle Pharmakologie und Toxikologie, Hamburg, Germany
| |
Collapse
|
21
|
Pecha S, Flenner F, Söhren K, Reichenspurner H, Eschenhagen T, Christ T. β1 Adrenoceptor Antagonistic Effects of ICI 118,551 on the Positive Inotropic Effect of Adrenaline in Murine Hearts. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571603] [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: 10/22/2022]
|
22
|
Holinski S, Zhigalov K, Christ T, Konertz W. Early Postoperative Results of the Dokimos Plus Stented Pericardial Aortic Bioprosthesis for Isolated Aortic Valve Replacement and Hemodynamic Comparison with Sorin Solo, Labcor TLBP-A, and ATS 3f. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571737] [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: 10/22/2022]
|
23
|
Christ T, Claus B, Woythal N, Dushe S, Konertz W, Grubitzsch H. The Ross-procedure: Long-term Results of Homografts Versus Xenografts. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
24
|
Kloth B, Schneeberger Y, Pecha S, Söhren K, Reichenspurner H, Eschenhagen T, Christ T. Positive Inotropic Effects of Akrinor® in Human Atrial Tissue: Relevant PDE Inhibition at Clinically Used Concentration. Thorac Cardiovasc Surg 2016. [DOI: 10.1055/s-0036-1571699] [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: 10/22/2022]
|
25
|
Christ T, Dohmen P, Laule M, Stangl K, Konertz W. TAVI and Left Ventricular Hypertrophy - A Case Report. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544571] [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: 10/20/2022]
|
26
|
Grubitzsch H, Tarar W, Christ T, Konertz W. Outcomes of Surgery for Prosthetic Valve Endocarditis after Stentless Aortic Valve Replacement. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544463] [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: 10/20/2022]
|
27
|
Christ T, Grubitzsch H, Borck R, Heinze G, Konertz W. The SJM Toronto Bioprosthesis: Up to 20 Years Follow-Up in Patients Aged 60 or Younger. Thorac Cardiovasc Surg 2015. [DOI: 10.1055/s-0035-1544458] [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: 10/20/2022]
|
28
|
Turnow K, Metzner K, Cotella D, Morales MJ, Schaefer M, Christ T, Ravens U, Wettwer E, Kämmerer S. Interaction of DPP10a with Kv4.3 channel complex results in a sustained current component of human transient outward current Ito. Basic Res Cardiol 2015; 110:5. [PMID: 25600224 DOI: 10.1007/s00395-014-0457-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 11/21/2014] [Accepted: 12/09/2014] [Indexed: 01/19/2023]
Abstract
The sustained component of the K(+) outward current in human atrial myocytes is believed to be due to the slowly inactivating ultra-rapid potassium current I Kur and not to the fast inactivating transient outward current Ito. Here we provide evidence for contribution of Ito to this late current due to the effects of dipeptidyl peptidase-like protein (DPP) 10 (DPP10a) interacting with Kv4.3 channels. We studied the late current component of Ito in human atrial myocytes and CHO cells co-expressing Kv4.3 or Kv4.3/KChIP2 (control) and DPP proteins using voltage-clamp technique and a pharmacological approach. A voltage dependent and slowly inactivating late current (43% of peak amplitude) could be observed in atrial myocytes. We found a similar current in CHO cells expressing Kv4.3/KChIP2 + DPP10a, but not in cells co-expressing Kv4.3 + DPP or Kv4.3/KChIP2 + DPP6-S. Assuming that DPP10a influences atrial Ito, we detected DPP10 expression of three alternatively spliced mRNAs, DPP10 protein and colocalization of Kv4.3 and DPP10 proteins in human atrial myocytes. DPP10a did not affect properties of expressed Kv1.5 excluding a contribution to the sustained IKur in atrial cells. To test for the contribution of Kv4-based Ito on sustained K(+) outward currents in human atrial myocytes, we used 4-AP to block IKur, in combination with Heteropoda toxin 2 to block Kv4 channels. We could clearly separate an Ito fraction of about 19% contributing to the late current in atrial myocytes. Thus, the interaction of DPP10a, expressed in human atrium, with Kv4.3 channels generates a sustained current component of Ito, which may affect late repolarization phase of atrial action potentials.
Collapse
Affiliation(s)
- K Turnow
- Department of Pharmacology and Toxicology, Dresden University of Technology, Dresden, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Pecha S, Mudersbach E, Wagner F, Alassar Y, Hakmi S, Yildirim Y, Reichenspurner H, Eschenhagen T, Christ T. Prostaglandin E2 does not attenuate adrenergic-induced cardiac contractile response. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367255] [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: 10/25/2022]
|
30
|
Christ T, Grubitzsch H, Claus B, Konertz W. Hemodynamic behavior of stentless aortic valves in long term follow-up. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1367231] [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: 10/25/2022]
|
31
|
Leone A, Aquila I, Vicinanza C, Iaconetti C, Bochicchio A, Ottolenghi S, Indolfi C, Nadal-Ginard B, Ellison GM, Torella D, Mias C, Genet G, Guilbeau-Frugier C, Pathak A, Senard JM, Gales C, Egorova AD, Khedoe PSJ, Goumans MTH, Nauli SM, Ten Dijke P, Poelmann RE, Hierck BP, Miragoli M, Lab MJ, Singh A, Sikkel M, Lyon A, Gorelik J, Cheung C, Bernardo AS, Trotter MW, Pedersen RA, Sinha S, Mioulane M, Foldes G, Harding SE, Reglin B, Secomb TW, Pries AR, Buckingham M, Lescroart F, Meilhac S, Le Garrec JF, Rozmaritsa N, Christ T, Wettwer E, Knaut M, Ravens U, Tokar S, Schobesberger S, Singh A, Wright PT, Miragoli M, Lyon AR, Sikkel M, Harding SE, Gorelik J, Van Mil A, Grundmann S, Goumans MJ, Jaksani S, Doevendans PA, Sluijter JP, Tijsen AJ, Amin AS, Giudicessi JR, Tanck MW, Bezzina CR, Creemers EE, Wilde AM, Ackerman MJ, Pinto YM, Gedicke-Hornung C, Behrens-Gawlik V, Khajetoorians D, Mearini G, Reischmann S, Geertz B, Voit T, Dreyfus P, Eschenhagen T, Carrier L, Duerr GD, Heinemann JC, Wenzel D, Ghanem A, Alferink JC, Zimmer A, Lutz B, Welz A, Fleischmann BK, Dewald O, Sbroggio' M, Bertero A, Giuliano L, Brancaccio M, Tarone G, Meiser M, Kohlhaas M, Chen Y, Csordas G, Dorn G, Maack C, Stapel B, Hoch M, Haghikia A, Fischer P, Maack C, Hilfiker-Kleiner D, Schroen B, Corsten M, Verhesen W, De Windt L, Pinto YM, Zacchigna S, Thum T, Carmeliet P, Papageorgiou A, Heymans S, Lunde IG, Finsen AV, Florholmen G, Skrbic B, Kvaloy H, Jarstadmarken HO, Sjaastad I, Tonnessen T, Carlson CR, Christensen G, Paavola J, Schliffke S, Rossetti S, Kuo I, Yuan S, Sun Z, Harris P, Torres V, Ehrlich B, Robinson P, Adams K, Zhang YH, Casadei B, Watkins H, Redwood C, Seneviratne AN, Cole JE, Goddard ME, Mohri Z, Cross AJ, Krams R, Monaco C, Everaert BR, Van Laere SJ, Hoymans VY, Timmermans JP, Vrints CJ. Oral abstract presentations & Young Investigators Competition. Cardiovasc Res 2012. [DOI: 10.1093/cvr/cvr333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
32
|
Jannasch A, Witt W, Christ T, Ravens U, Matschke K, Waldow T. Sphingosine-1-phosphate induced increase in tension development of aortic valve leaflets is mediated via sphingosine-1-phosphate 2 receptor. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297862] [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: 10/14/2022]
|
33
|
Grubitzsch H, Laule M, Stangl K, Lembcke A, Sander M, Christ T, Konertz W. Bacterial endocarditis within a totally calcified homograft after aortic root replacement: successful treatment by combining conventional and transcatheter techniques. Thorac Cardiovasc Surg 2012. [DOI: 10.1055/s-0031-1297873] [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: 10/14/2022]
|
34
|
Abstract
Atrial fibrillation (AF) is accompanied by a high risk of thromboembolic complications necessitating anticoagulation therapy. Arrhythmias have a high tendency to become persistent. Catheter ablation techniques are highly effective in the treatment of AF; however, these procedures are far too costly and time-consuming for the routine treatment of large numbers of AF patients. Moreover, many patients prefer drug treatment although conventional antiarrhythmic drugs are moderately effective and are burdened with severe cardiac and noncardiac side effects. New antifibrillatory drugs developed for the treatment of AF include multichannel blockers with a high degree of atrial selectivity. The rationale of this approach is to induce antiarrhythmic actions only in the atria without conferring proarrhythmic effects in the ventricles.Atrial selective drug action is expected with ion channel blockers targeting ion channels that are expressed predominantly in the atria, i.e., Kv1.5 (I(Kur)), or Kir 3.1 and Kir 3.4 (I(K,ACh)). Na(+) channel blockers that dissociate rapidly may exert atrial selectivity because of subtle differences in atrial and ventricular action potentials. Finally, atrial-selective targets may evolve due to disease-specific processes (e.g., rate-dependent Na(+) channel blockers, selective drugs against constitutively active I(K,ACh) channels).
Collapse
Affiliation(s)
- U Ravens
- Department of Pharmacology and Toxicology, Dresden University of Technology, Fetscherstr. 74, 01307, Dresden, Deutschland.
| | | |
Collapse
|
35
|
Christ T, Claus B, Konertz W, Grubitzsch H. Long term follow-up after stentless aortic valve replacement in younger age (≤60 years): Up to 16 year follow up. Thorac Cardiovasc Surg 2011. [DOI: 10.1055/s-0030-1269085] [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: 10/18/2022]
|
36
|
Linneweber J, Dohmen P, Gohlke D, Christ T, Konertz W. Minimally invasive versus conventional implantation of the ATS-3F aortic valve prosthesis. Thorac Cardiovasc Surg 2011. [DOI: 10.1055/s-0030-1269209] [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: 10/18/2022]
|
37
|
Linneweber J, Magheli A, Lembcke A, Christ T, Konertz W. Intracavitary tumor spread of a metastatic testicular seminoma in the left atrium and ventricle. J Thorac Cardiovasc Surg 2011; 141:583-4. [PMID: 21241865 DOI: 10.1016/j.jtcvs.2010.09.045] [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: 09/17/2010] [Accepted: 09/27/2010] [Indexed: 11/28/2022]
Affiliation(s)
- Joerg Linneweber
- Department of Cardiovascular Surgery, Charité-Universitätsmedizin Berlin, Germany.
| | | | | | | | | |
Collapse
|
38
|
Dimova I, Hlushchuk R, Makanya A, Djonov V, Theurl M, Schgoer W, Albrecht K, Beer A, Patsch JR, Schratzberger P, Mahata S, Kirchmair R, Didie M, Christalla P, Rau T, Eschenhagen T, Schumacher U, Lin Q, Zenke M, Zimmmermann W, Hoch M, Fischer P, Stapel B, Missol-Kolka E, Erschow S, Scherr M, Drexler H, Hilfiker-Kleiner D, Diebold I, Petry A, Kennel P, Djordjevic T, Hess J, Goerlach A, Castellano J, Aledo R, Sendra J, Costales P, Badimon L, Llorente-Cortes V, Dworatzek E, Mahmoodzadeh S, Regitz-Zagrosek V, Posa A, Varga C, Berko A, Veszelka M, Szablics P, Vari B, Pavo I, Laszlo F, Brandenburger M, Wenzel J, Bogdan R, Richardt D, Reppel M, Hescheler J, Terlau H, Dendorfer A, Heijman J, Rudy Y, Westra R, Volders P, Rasmusson R, Bondarenko V, Ertas Gokhan MD, Ural Ertan MD, Karaoz Erdal PHD, Aksoy Ayca PHD, Kilic Teoman MD, Kozdag Guliz MD, Vural Ahmet MD, Ural Dilek MD, Poulet C, Christ T, Wettwer E, Ravens U, Van Der Pouw Kraan C, Schirmer S, Fledderus J, Moerland P, Leyen T, Piek J, Van Royen N, Horrevoets A, Fleissner F, Jazbutyte V, Fiedler J, Galuppo P, Mayr M, Ertl G, Bauersachs J, Thum T, Protze S, Bussek A, Ravens U, Li F, Hoo R, Lam K, Xu A, Westenbrink B, Maass A, Sillje H, Van Veldhuisen D, Van Gilst W, De Boer R, Biesmans L, Bito V, Driessen R, Holemans P, Subramanian P, Lenaerts I, Huysmans C, Sipido K, Mourouzis I, Pantos C, Galanopoulos G, Gavra M, Perimenis P, Spanou D, Cokkinos D, Karshovska E, Berezin A, Panasenko T, Euler G, Partsch S, Harjung C, Heger J, Bogdanova A, Mihov D, Mocharla P, Yakushev S, Megens R, Vogel J, Gassmann M, Tavakoli R, Johansen D, Sanden E, Xi C, Sundset R, Ytrehus K, Bliksoen M, Rutkovskiy A, Akhtar S, Mariero L, Vaage I, Stenslokken K, Pisarenko O, Shulzhenko V, Studneva I, Serebryakova L, Tskitishvili O, Pelogeykina Y, Timoshin A, Heyll K, Vanin A, Ziberna L, Lunder M, Drevensek G, Passamonti S, Gorza L, Ravara B, Scapin C, Vitadello M, Zigrino F, Jansen Y, Gerosa G, Gwathmey J, Del Monte F, Vilahur G, Juan-Babot O, Onate B, Casani L, Badimon L, Lemoine S, Calmettes G, Weber C, Jaspard-Vinassa B, Duplaa C, Couffinhal T, Diolez P, Dos Santos P, Fusco A, Santulli G, Cipolletta E, Sorriento D, Cervero P, Schober A, Trimarco B, Feliciello A, Iaccarino G, Loganathan S, Barnucz E, Korkmaz S, Hirschberg K, Karck M, Szabo G, Kozichova K, Zafeiriou M, Hlavackova M, Neckar J, Kolar F, Novakova O, Novak F, Kusmic C, Matteucci M, Pelosi G, Vesentini N, Barsanti C, Noack C, Trivella M, Abraham N, L'abbate A, Muntean D, Mirica S, Duicu O, Raducan A, Hancu M, Fira-Mladinescu O, Ordodi V, Renger A, Voelkl J, Haubner B, Neely G, Moriell C, Seidl S, Pachinger O, Penninger J, Metzler B, Dietz R, Zelarayan L, Bergmann M, Meln I, Malashicheva A, Anisimov S, Kalinina N, Sysoeva V, Zaritskey A, Barbuti A, Scavone A, Mazzocchi N, Crespi A, Capilupo D, Difrancesco D, Qian L, Shim W, Gu Y, Mohammed S, Wong P, Noack C, Renger A, Zafiriou M, Dietz R, Schaeffer H, Bergmann M, Zelarayan L, Kovacs P, Simon J, Christ T, Wettwer E, Varro A, Ravens U, Athias P, Wolf J, Bouchot O, Vandroux D, Mathe A, De Carvalho A, Laurent G, Rainer P, Huber M, Edelmann F, Stojakovic T, Trantina-Yates A, Trauner M, Pieske B, Von Lewinski D, De Jong A, Maass A, Oberdorf-Maass S, Van Gelder I, Lin Y, Li J, Wang F, He Y, Li X, Xu H, Yang X, Coppini R, Ferrantini C, Ferrara C, Rossi A, Mugelli A, Poggesi C, Cerbai E, Rozmaritsa N, Voigt N, Christ T, Wettwer E, Dobrev D, Ravens U, Kienitz MC, Zoidl G, Bender K, Pott L, Kohajda Z, Kristof A, Kovacs P, Virag L, Varro A, Jost N, Voigt N, Trafford A, Ravens U, Dobrev D, Prnjavorac B, Mujaric E, Jukic J, Abduzaimovic K, Brack K, Patel V, Coote J, Ng G, Wilders R, Van Ginneken A, Verkerk A, Brack K, Coote J, Ng G, Xaplanteris P, Vlachopoulos C, Baou K, Vassiliadou C, Dima I, Ioakeimidis N, Stefanadis C, Ruifrok W, Qian C, Sillje H, Van Goor H, Van Veldhuisen D, Van Gilst W, De Boer R, Schmidt K, Kaiser F, Erdmann J, De Wit C, Barnett O, Kyyak Y, Cesana F, Boffi L, Mauri T, Alloni M, Betelli M, Nava S, Giannattasio C, Mancia G, Vilskersts R, Kuka J, Svalbe B, Liepinsh E, Dambrova M, Zakrzewicz A, Maroski J, Vorderwuelbecke B, Fiedorowicz K, Da Silva-Azevedo L, Pries A, Gryglewska B, Necki M, Zelawski M, Grodzicki T, Scoditti E, Massaro M, Carluccio M, Distante A, Storelli C, De Caterina R, Kocgirli O, Valcaccia S, Dao V, Suvorava T, Kumpf S, Floeren M, Oppermann M, Kojda G, Leo C, Ziogas J, Favaloro J, Woodman O, Goettsch W, Marton A, Goettsch C, Morawietz H, Khalifa E, Ashour Z, Dao V, Floeren M, Kumpf S, Suvorava T, Kojda G, Rupprecht V, Scalera F, Martens-Lobenhoffer J, Bode-Boeger S, Li W, Kwan Y, Leung G, Patella F, Mercatanti A, Pitto L, Rainaldi G, Tsimafeyeu I, Tishova Y, Wynn N, Kalinchenko S, Clemente Lorenzo M, Grande M, Barriocanal F, Aparicio M, Martin A, Hernandez J, Lopez Novoa J, Martin Luengo C, Kurlianskaya A, Denisevich T, Leo C, Ziogas J, Favaloro J, Woodman O, Barth N, Loot A, Fleming I, Wang Y, Gabrielsen A, Ripa R, Jorgensen E, Kastrup J, Arderiu G, Pena E, Badimon L, Kobus K, Czyszek J, Kozlowska-Wiechowska A, Milkiewicz P, Milkiewicz M, Madonna R, Montebello E, Geng Y, De Caterina R, Chin-Dusting J, Michell D, Skilton M, Dixon J, Dart A, Moore X, Hlushchuk R, Ehrbar M, Reichmuth P, Heinimann N, Djonov V, Hewing B, Stangl V, Stangl K, Laule M, Baumann G, Ludwig A, Widmer-Teske R, Mueller A, Stieger P, Tillmanns H, Braun-Dullaeus R, Sedding D, Troidl K, Eller L, Benli I, Apfelbeck H, Schierling W, Troidl C, Schaper W, Schmitz-Rixen T, Hinkel R, Trenkwalder T, Pfosser A, Globisch F, Stachel G, Lebherz C, Bock-Marquette I, Kupatt C, Seyler C, Duthil-Straub E, Zitron E, Scholz E, Thomas D, Gierten J, Karle C, Fink R, Padro T, Lugano R, Garcia-Arguinzonis M, Badimon L, Schuchardt M, Pruefer J, Toelle M, Pruefer N, Jankowski V, Jankowski J, Zidek W, Van Der Giet M, Pena E, Arderiu G, Badimon L, Fransen P, Van Hove C, Michiels C, Van Langen J, Bult H, Quarck R, Wynants M, Alfaro-Moreno E, Rosario Sepulveda M, Wuytack F, Van Raemdonck D, Meyns B, Delcroix M, Christofi F, Wijetunge S, Sever P, Hughes A, Ohanian J, Forman S, Ohanian V, Wijetunge S, Hughes A, Gibbons C, Ohanian J, Ohanian V, Costales P, Aledo R, Vernia S, Das A, Shah V, Casado M, Badimon L, Llorente-Cortes V, Fransen P, Van Hove C, Van Langen J, Bult H, Bielenberg W, Daniel J, Tillmanns H, Sedding D, Daniel JM, Hersemeyer K, Schmidt-Woell T, Kaetzel D, Tillmans H, Sedding D, Kanse S, Tuncay E, Kandilci H, Zeydanli E, Sozmen N, Akman D, Yildirim S, Turan B, Nagy N, Acsai K, Farkas A, Papp J, Varro A, Toth A, Viero C, Mason S, Williams A, Marston S, Stuckey D, Dyer E, Song W, El Kadri M, Hart G, Hussain M, Faltinova A, Gaburjakova J, Urbanikova L, Hajduk M, Tomaskova B, Antalik M, Zahradnikova A, Steinwascher P, Jaquet K, Muegge A, Ferrantini C, Coppini R, Wang G, Zhang M, Cerbai E, Tesi C, Poggesi C, Ter Keurs H, Kettlewell S, Smith G, Workman A, Acsai K, Lenaerts I, Holemans P, Sokolow S, Schurmans S, Herchuelz A, Sipido K, Antoons G, Wehrens X, Li N, Respress JR, De Almeida A, Van Oort R, Bussek A, Lohmann H, Christ T, Wettwer E, Ravens U, Saes M, Muegge A, Jaquet K, Messer A, Copeland O, Leung M, Marston S, Matthes F, Steinbrecher J, Salinas-Riester G, Opitz L, Hasenfuss G, Lehnart S, Caracciolo G, Eleid M, Carerj S, Chandrasekaran K, Khandheria B, Sengupta P, Riaz I, Tyng L, Dou Y, Seymour A, Dyer C, Griffin S, Haswell S, Greenman J, Yasushige S, Amorim P, Nguyen T, Schwarzer M, Mohr F, Doenst T, Popin Sanja S, Lalosevic D, Capo I, Momcilov Popin T, Astvatsatryan A, Senan M, Astvatsatryan A, Senan M, Shafieian G, Goncalves N, Falcao-Pires I, Henriques-Coelho T, Moreira-Goncalves D, Leite-Moreira A, Bronze Carvalho L, Azevedo J, Andrade M, Arroja I, Relvas M, Morais G, Seabra M, Aleixo A, Winter J, Brack K, Ng G, Zabunova M, Mintale I, Lurina D, Narbute I, Zakke I, Erglis A, Astvatsatryan A, Senan M, Marcinkevics Z, Kusnere S, Abolins A, Aivars J, Rubins U, Nassar Y, Monsef D, Hamed G, Abdelshafy S, Chen L, Wu Y, Wang J, Cheng C, Sternak M, Khomich T, Jakubowski A, Szafarz M, Szczepanski W, Mateuszuk L, Szymura-Oleksiak J, Chlopicki S, Sulicka J, Strach M, Kierzkowska I, Surdacki A, Mikolajczyk T, Balwierz W, Guzik T, Grodzicki T, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Rogoza A, Shakur R, Metcalfe S, Bradley J, Demyanets S, Kaun C, Kastl S, Pfaffenberger S, Huk I, Maurer G, Huber K, Wojta J, Eriksson O, Aberg M, Siegbahn A, Prnjavorac B, Niccoli G, Sgueglia G, Conte M, Giubilato S, Cosentino N, Ferrante G, Crea F, Dmitriev V, Oschepkova E, Polovitkina O, Titov V, Ilisei D, Leon M, Mitu F, Kyriakakis E, Philippova M, Cavallari M, Bochkov V, Biedermann B, De Libero G, Erne P, Resink T, Titov V, Bakogiannis C, Antoniades C, Tousoulis D, Demosthenous M, Psarros C, Sfyras N, Channon K, Stefanadis C, Del Turco S, Navarra T, Basta G, De Caterina R, Carnicelli V, Frascarelli S, Zucchi R, Kostareva A, Malashicheva A, Sjoberg G, Gudkova A, Semernin E, Shlyakhto E, Sejersen T, Cucu N, Anton M, Stambuli D, Botezatu A, Arsene C, Lupeanu E, Anton G, Beer A, Theurl M, Schgoer W, Albrecht K, Patsch J, Huber E, Schratzberger P, Kirchmair R, Lande C, Cecchettini A, Tedeschi L, Trivella M, Citti L, Chen B, Ma Y, Yang Y, Ma X, Liu F, Hasanzad M, Rejali L, Fathi M, Minassian A, Mohammad Hassani R, Najafi A, Sarzaeem M, Sezavar S, Akhmedov A, Klingenberg R, Yonekawa K, Lohmann C, Gay S, Maier W, Neithard M, Luescher T, Xie X, Ma Y, Yang Y, Fu Z, Li X, Ma X, Liu F, Chen B, Kevorkov A, Verduci L, Mercatanti A, Cremisi F, Pitto L, Wonnerth A, Katsaros K, Zorn G, Kaun C, Weiss T, Huber K, Maurer G, Wojta J, De Rosa R, Galasso G, Piscione F, Santulli G, Iaccarino G, Piccolo R, Luciano R, Chiariello M, Szymanski M, Schoemaker R, Van Veldhuisen D, Van Gilst W, Hillege H, Rizzo S, Basso C, Thiene G, Valente M, Rickelt S, Franke W, Bartoloni G, Bianca S, Giurato E, Barone C, Ettore G, Bianca I, Eftekhari P, Wallukat G, Bekel A, Heinrich F, Fu M, Briedert M, Briand J, Roegel J, Rizzo S, Pilichou K, Basso C, Thiene G, Korkmaz S, Radovits T, Pali S, Hirschberg K, Zoellner S, Loganathan S, Karck M, Szabo G, Bartoloni G, Pucci A, Pantaleo J, Martino S, Pelosi G, Matteucci M, Kusmic C, Vesentini N, Piccolomini F, Viglione F, Trivella M, L'abbate A, Slavikova J, Chottova Dvorakova M, Kummer W, Campanile A, Spinelli L, Santulli G, Ciccarelli M, De Gennaro S, Assante Di Panzillo E, Trimarco B, Iaccarino G, Akbarzadeh Najar R, Ghaderian S, Tabatabaei Panah A, Vakili H, Rezaei Farimani A, Rezaie G, Beigi Harchegani A, Falcao-Pires I, Hamdani N, Gavina C, Van Der Velden J, Niessen H, Stienen G, Leite-Moreira A, Paulus W, Goncalves N, Falcao-Pires I, Moura C, Lamego I, Eloy C, Niessen H, Areias J, Leite-Moreira A, Bonda T, Dziemidowicz M, Hirnle T, Dmitruk I, Kaminski K, Musial W, Winnicka M, Villar A, Merino D, Ares M, Pilar F, Valdizan E, Hurle M, Nistal J, Vera V, Toelle M, Van Der Giet M, Zidek W, Jankowski J, Astvatsatryan A, Senan M, Karuppasamy P, Chaubey S, Dew T, Sherwood R, Desai J, John L, Marber M, Kunst G, Cipolletta E, Santulli G, Attanasio A, Del Giudice C, Campiglia P, Illario M, Iaccarino G, Berezin A, Koretskaya E, Bishop E, Fearon I, Heger J, Warga B, Abdallah Y, Meyering B, Schlueter K, Piper H, Euler G, Lavorgna A, Cecchetti S, Rio T, Coluzzi G, Carrozza C, Conti E, Crea F, Andreotti F, Berezin A, Glavatskiy A, Uz O, Kardesoglu E, Yiginer O, Bas S, Ipcioglu O, Ozmen N, Aparci M, Cingozbay B, Ivanes F, Hillaert M, Susen S, Mouquet F, Doevendans P, Jude B, Montalescot G, Van Belle E, Leon M, Ilisei D, Mitu F, Castellani C, Angelini A, De Boer O, Van Der Loos C, Gerosa G, Thiene G, Van Der Wal A, Dumitriu I, Baruah P, Kaski J, Maytham O, D Smith J, Rose M, Cappelletti A, Pessina A, Mazzavillani M, Calori G, Margonato A, De Rosa R, Galasso G, Piscione F, Cassese S, Piccolo R, Luciano R, D'anna C, Chiariello M, Niccoli G, Ferrante G, Leo A, Giubilato S, Silenzi A, Baca' M, Biasucci L, Crea F, Baller D, Gleichmann U, Holzinger J, Bitter T, Horstkotte D, Bakogiannis C, Antoniades C, Antonopoulos A, Tousoulis D, Miliou A, Triantafyllou C, Channon K, Stefanadis C, Masson W, Siniawski D, Sorroche P, Casanas L, Scordo W, Krauss J, Cagide A, Schuchardt M, Toelle M, Huang T, Wiedon A, Van Der Giet M, Chin-Dusting J, Lee S, Walker K, Dart A, O'dea K, Skilton M, Perez Berbel P, Arrarte Esteban V, Garcia Valentin M, Sola Villalpando M, Lopez Vaquero C, Caballero L, Quintanilla Tello M, Sogorb Garri F, Duerr G, Elhafi N, Bostani T, Swieny L, Kolobara E, Welz A, Roell W, Dewald O, Kaludercic N, Takimoto E, Nagayama T, Chen K, Shih J, Kass D, Di Lisa F, Paolocci N, Vinet L, Pezet M, Briec F, Previlon M, Rouet-Benzineb P, Hivonnait A, Charpentier F, Mercadier J, Villar A, Cobo M, Llano M, Montalvo C, Exposito V, Nistal J, Hurle M, Ruifrok W, Meems L. Saturday, 17 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq174] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
39
|
Schuchardt M, Toelle M, Huang T, Wiedon A, Van Der Giet M, Mill C, George S, Jeremy J, Santulli G, Illario M, Cipolletta E, Sorriento D, Del Giudice C, Anastasio A, Trimarco B, Iaccarino G, Jobs A, Wagner C, Kurtz A, De Wit C, Koller A, Suvorava T, Weber M, Dao V, Kojda G, Tsaousi A, Lyon C, Williams H, George S, Barth N, Loot A, Fleming I, Keul P, Lucke S, Graeler M, Heusch G, Levkau B, Biessen E, De Jager S, Bermudez-Pulgarin B, Bot I, Abia R, Van Berkel T, Renger A, Noack C, Zafiriou M, Dietz R, Bergmann M, Zelarayan L, Hammond J, Hamelet J, Van Assche T, Belge C, Vanderper A, Langin D, Herijgers P, Balligand J, Perrot A, Neubert M, Dietz R, Posch M, Oezcelik C, Posch M, Waldmuller S, Perrot A, Berger F, Scheffold T, Bouvagnet P, Ozcelik C, Lebreiro A, Martins E, Lourenco P, Cruz C, Martins M, Bettencourt P, Maciel M, Abreu-Lima C, Pilichou K, Bauce B, Rampazzo A, Carturan E, Corrado D, Thiene G, Basso C, Piccini I, Fortmueller L, Kuhlmann M, Schaefers M, Carmeliet P, Kirchhof P, Fabritz L, Sanchez J, Rodriguez-Sinovas A, Agullo E, Garcia-Dorado D, Lymperopoulos A, Rengo G, Gao E, Zincarelli C, Koch W, Fontes-Sousa A, Silva S, Gomes M, Ferreira P, Leite-Moreira A, Capuano V, Ferron L, Ruchon Y, Ben Mohamed F, Renaud JF, Morgan P, Falcao-Pires I, Goncalves N, Gavina C, Pinho S, Moura C, Amorim M, Pinho P, Leite-Moreira A, Christ T, Molenaar P, Diez A, Ravens U, Kaumann A, Kletsiou E, Giannakopoulou M, Bozas E, Iliodromitis E, Anastasiou-Nana M, Papathanassoglou E, Chottova Dvorakova M, Mistrova E, Perez N, Slavikova J, Hynie S, Sida P, Klenerova V, Massaro M, Scoditti E, Carluccio M, Storelli C, Distante A, De Caterina R, Cingolani H, Zakrzewicz A, Hoffmann C, Hohberg M, Chlench S, Maroski J, Drab M, Siegel G, Pries A, Farrell K, Holt C, Zahradnikova A, Schrot G, Ibatov A, Wilck N, Fechner M, Arias A, Meiners S, Baumann G, Stangl V, Stangl K, Ludwig A, Polakova E, Christ A, Eijgelaar W, Daemen M, Li X, Penfold M, Schall T, Weber C, Schober A, Hintenberger R, Kaun C, Zahradnik I, Pfaffenberger S, Maurer G, Huber K, Wojta J, Demyanets S, Titov V, Nazari-Jahantigh M, Weber C, Schober A, Chin-Dusting J, Zahradnikova A, Vaisman B, Khong S, Remaley A, Andrews K, Hoeper A, Khalid A, Fuglested B, Aasum E, Larsen T, Titov V, Fluschnik N, Carluccio M, Scoditti E, Massaro M, Storelli C, Distante A, De Caterina R, Diebold I, Petry A, Djordjevic T, Belaiba R, Sossalla S, Fratz S, Hess J, Kietzmann T, Goerlach A, O'shea K, Chess D, Khairallah R, Walsh K, Stanley W, Falcao-Pires I, Ort K, Goncalves N, Van Der Velden J, Moreira-Goncalves D, Paulus W, Niessen H, Perlini S, Leite-Moreira A, Azibani F, Tournoux F, Fazal L, Neef S, Polidano E, Merval R, Chatziantoniou C, Samuel J, Delcayre C, Azibani F, Tournoux F, Fazal L, Polidano E, Merval R, Hasenfuss G, Chatziantoniou C, Samuel J, Delcayre C, Mgandela P, Brooksbank R, Maswanganyi T, Woodiwiss A, Norton G, Makaula S, Sartiani L, Maier L, Bucciantini M, Spinelli V, Coppini R, Russo E, Mugelli A, Cerbai E, Stefani M, Sukumaran V, Watanabe K, Ma M, Weinert S, Thandavarayan R, Azrozal W, Sari F, Shimazaki H, Kobayashi Y, Roleder T, Golba K, Deja M, Malinowski M, Wos S, Poitz D, Stieger P, Grebe M, Tillmanns H, Preissner K, Sedding D, Ercan E, Guven A, Asgun F, Ickin M, Ercan F, Herold J, Kaplan A, Yavuz O, Bagla S, Yang Y, Ma Y, Liu F, Li X, Huang Y, Kuka J, Vilskersts R, Schmeisser A, Vavers E, Liepins E, Dambrova M, Mariero L, Rutkovskiy A, Stenslokken K, Vaage J, Duerr G, Suchan G, Heuft T, Strasser J, Klaas T, Zimmer A, Welz A, Fleischmann B, Dewald O, Voelkl J, Haubner B, Kremser C, Mayr A, Klug G, Braun-Dullaeus R, Reiner M, Pachinger O, Metzler B, Pisarenko O, Shulzhenko V, Pelogeykina Y, Khatri D, Studneva I, Barnucz E, Loganathan S, Nazari-Jahantigh M, Hirschberg K, Korkmaz S, Merkely B, Karck M, Szabo G, Bencsik P, Gorbe A, Kocsis G, Csonka C, Csont T, Weber C, Shamloo M, Woodburn K, Ferdinandy P, Szucs G, Kupai K, Csonka C, Csont C, Ferdinandy P, Kocsisne Fodor G, Bencsik P, Schober A, Fekete V, Varga Z, Monostori P, Turi S, Ferdinandy P, Csont T, Leuner A, Eichhorn B, Ravens U, Morawietz H, Babes E, Babes V, Popescu M, Ardelean A, Rus M, Bustea C, Gwozdz P, Csanyi G, Luzak B, Gajda M, Mateuszuk L, Chmura-Skirlinska A, Watala C, Chlopicki S, Kierzkowska I, Sulicka J, Kwater A, Strach M, Surdacki A, Siedlar M, Grodzicki T, Olieslagers S, Pardali L, Tchaikovski V, Ten Dijke P, Waltenberger J, Renner M, Redwan B, Winter M, Panzenboeck A, Jakowitsch J, Sadushi-Kolici R, Bonderman D, Lang I, Toso A, Tanini L, Pizzetti T, Leoncini M, Maioli M, Tedeschi D, Oliviero C, Bellandi F, Toso A, Tanini L, Pizzetti T, Leoncini M, Maioli M, Tedeschi D, Casprini P, Bellandi F, Toso A, Tanini L, Pizzetti T, Leoncini M, Maioli M, Tedeschi D, Amato M, Bellandi F, Molins B, Pena E, Badimon L, Ferreiro Gutierrez J, Ueno M, Alissa R, Dharmashankar K, Capodanno D, Desai B, Bass T, Angiolillo D, Chabielska E, Gromotowicz A, Szemraj J, Stankiewicz A, Zakrzeska A, Mohammed S, Molla F, Soldo A, Russo I, Germano G, Balconi G, Staszewsky L, Latini R, Lynch F, Austin C, Prendergast B, Keenan D, Malik R, Izzard A, Heagerty A, Czikora A, Lizanecz E, Rutkai I, Boczan J, Porszasz R, Papp Z, Edes I, Toth A, Colantuoni A, Vagnani S, Lapi D, Maroz-Vadalazhskaya N, Koslov I, Shumavetz V, Glibovskaya T, Ostrovskiy Y, Koutsiaris A, Tachmitzi S, Kotoula M, Giannoukas A, Tsironi E, Rutkai I, Czikora A, Darago A, Orosz P, Megyesi Z, Edes I, Papp Z, Toth A, Eichhorn B, Schudeja S, Matschke K, Deussen A, Ravens U, Castro M, Cena J, Walsh M, Schulz R, Poddar K, Rha S, Ramasamy S, Park J, Choi C, Seo H, Park C, Oh D, Lebreiro A, Martins E, Almeida J, Pimenta S, Bernardes J, Machado J, Abreu-Lima C, Sabatasso S, Laissue J, Hlushchuk R, Brauer-Krisch E, Bravin A, Blattmann H, Michaud K, Djonov V, Hirschberg K, Tarcea V, Pali S, Korkmaz S, Loganathan S, Merkely B, Karck M, Szabo G, Pagliani L, Faggin E, Rattazzi M, Puato M, Presta M, Grego F, Deriu G, Pauletto P, Kaiser R, Albrecht K, Schgoer W, Theurl M, Beer A, Wiedemann D, Steger C, Bonaros N, Kirchmair R, Kharlamov A, Cabaravdic M, Breuss J, Uhrin P, Binder B, Fiordaliso F, Balconi G, Mohammed S, Maggioni M, Biondi A, Masson S, Cervo L, Latini R, Francke A, Herold J, Soenke W, Strasser R, Braun-Dullaeus R, Hecht N, Vajkoczy P, Woitzik J, Hackbusch D, Gatzke N, Duelsner A, Tsuprykov O, Slavic S, Buschmann I, Kappert K, Massaro M, Scoditti E, Carluccio M, Storelli C, Distante A, De Caterina R, Barandi L, Harmati G, Simko J, Horvath B, Szentandrassy N, Banyasz T, Magyar J, Nanasi P, Kaya A, Uzunhasan I, Yildiz A, Yigit Z, Turkoglu C, Doisne N, Zannad N, Hivert B, Cosnay P, Maupoil V, Findlay I, Virag L, Kristof A, Koncz I, Szel T, Jost N, Biliczki P, Papp J, Varro A, Bukowska A, Skopp K, Hammwoehner M, Huth C, Bode-Boeger S, Goette A, Workman A, Dempster J, Marshall G, Rankin A, Revnic C, Ginghina C, Revnic F, Yakushev S, Petrushanko I, Makhro A, Segato Komniski M, Mitkevich V, Makarov A, Gassmann M, Bogdanova A, Rutkovskiy A, Mariero L, Stenslokken K, Valen G, Vaage J, Dizayee S, Kaestner S, Kuck F, Piekorz R, Hein P, Matthes J, Nurnberg B, Herzig S, Hertel F, Switalski A, Bender K, Kienitz MC, Pott L, Fornai L, Angelini A, Erika Amstalden Van Hove E, Fedrigo M, Thiene G, Heeren R, Kruse M, Pongs O, Lehmann H, Martens-Lobenhoffer J, Hammwoehner M, Roehl F, Bukowska A, Bode-Boeger S, Goette A, Radicke S, Cotella C, Sblattero D, Schaefer M, Ravens U, Wettwer E, Santoro C, Seyler C, Kulzer M, Zitron E, Scholz E, Welke F, Thomas D, Karle C, Schmidt K, Radicke S, Dobrev D, Ravens U, Wettwer E, Houshmand N, Menesi D, Ravens U, Wettwer E, Cotella D, Papp J, Varro A, Szuts V, Szuts V, Houshmand N, Puskas L, Jost N, Virag L, Kiss I, Deak F, Varro A, Tereshchenko S, Gladyshev M, Kalachova G, Syshchik N, Gogolashvili N, Dedok E, Evert L, Wenzel J, Brandenburger M, Bogdan R, Richardt D, Reppel M, Hescheler J, Dendorfer A, Terlau H, Wiegerinck R, Galvez-Monton C, Jorge E, Martinez R, Ricart E, Cinca J, Bagavananthem Andavan G, Lemmens Gruber R, Brack K, Coote J, Ng G, Daimi H, Haj Khelil A, Neji A, Ben Hamda K, Maaoui S, Aranega A, Chibani J, Franco Jaime D, Tanko AS, Brack K, Coote J, Ng G, Doisne N, Hivert B, Cosnay P, Findlay I, Maupoil V, Daniel JM, Bielenberg W, Stieger P, Tillmanns H, Sedding D, Fortini C, Toffoletto B, Fucili A, Beltrami A, Fiorelli V, Francolini G, Ferrari R, Beltrami C, Castellani C, Ravara B, Tavano R, Thiene G, Vettor R, De Coppi P, Papini E, Angelini A, Molla F, Soldo A, Biondi A, Staszewsky L, Russo I, Gunetti M, Fagioli F, Latini R, Suffredini S, Sartiani L, Stillitano F, Mugelli A, Cerbai E, Krausgrill B, Halbach M, Soemantri S, Schenk K, Lange N, Hescheler J, Saric T, Muller-Ehmsen J, Kavanagh D, Zhao Y, Yemm A, Kalia N, Wright E, Farrell K, Wallrapp C, Geigle P, Lewis A, Stratford P, Malik N, Holt C, Krausgrill B, Raths M, Halbach M, Schenk K, Hescheler J, Muller-Ehmsen J, Zagallo M, Luni C, Serena E, Cimetta E, Zatti S, Giobbe G, Elvassore N, Serena E, Cimetta E, Zaglia T, Zatti S, Zambon A, Gordon K, Elvassore N, Mioulane M, Foldes G, Ali N, Harding S, Gorbe A, Szunyog A, Varga Z, Pirity M, Rungaruniert S, Dinnyes A, Csont T, Ferdinandy P, Foldes G, Mioulane M, Iqbal A, Schneider MD, Ali N, Harding S, Babes E, Babes V, Khodjaeva E, Ibadov R, Khalikulov K, Mansurov A, Astvatsatryan A, Senan M, Astvatsatryan A, Senan M, Nemeth A, Lenkey Z, Ajtay Z, Cziraki A, Sulyok E, Horvath I, Lobenhoffer J, Bode-Boger S, Li J, He Y, Yang X, Wang F, Xu H, Li X, Zhao X, Lin Y, Juszynski M, Ciszek B, Jablonska A, Stachurska E, Ratajska A, Atkinson A, Inada S, Li J, Sleiman R, Zhang H, Boyett M, Dobrzynski H, Fedorenko O, Hao G, Atkinson A, Yanni J, Buckley D, Anderson R, Boyett M, Dobrzynski H, Ma Y, Ma X, Hu Y, Yang Y, Huang D, Liu F, Huang Y, Liu C, Jedrzejczyk T, Balwicki L, Wierucki L, Zdrojewski T, Makhro A, Agarkova I, Vogel J, Gassmann M, Bogdanova A, Korybalska K, Pyda M, Witowski J, Ibatov A, Sozmen N, Seymen A, Tuncay E, Turan B, Huang Y, Ma Y, Yang Y, Liu F, Chen B, Li X, Houston-Feenstra L, Chiong JR, Jutzy K, Furundzija V, Kaufmann J, Kappert K, Meyborg H, Fleck E, Stawowy P, Ksiezycka-Majczynska E, Lubiszewska B, Kruk M, Kurjata P, Ruzyllo W, Ibatov A, Driesen R, Coenen T, Fagard R, Sipido K, Petrov V, Aksentijevic D, Lygate C, Makinen K, Sebag-Montefiore L, Medway D, Schneider J, Neubauer S, Gasser R, Holzwart E, Rainer P, Von Lewinski D, Maechler H, Gasser S, Roessl U, Pieske B, Krueger J, Kintscher U, Kappert K, Podramagi T, Paju K, Piirsoo A, Roosimaa M, Kadaja L, Orlova E, Ruusalepp A, Seppet E, Auquier J, Ginion A, Hue L, Horman S, Beauloye C, Vanoverschelde J, Bertrand L, Fekete V, Zvara A, Pipis J, Konya C, Csonka C, Puskas L, Csont T, Ferdinandy P, Gasser S, Rainer P, Holzwart E, Roessl U, Kraigher-Krainer E, Von Lewinksi D, Pieske B, Gasser R, Gonzalez-Loyola A, Barba I, Rodriguez-Sinovas A, Fernandez-Sanz C, Agullo E, Ruiz-Meana M, Garcia-Dorado D, Forteza M, Bodi Peris V, Monleon D, Mainar L, Morales J, Moratal D, Trapero I, Chorro F, Leszek P, Sochanowicz B, Szperl M, Kolsut P, Piotrowski W, Rywik T, Danko B, Kruszewski M, Stanley W, Khairallah R, Khanna N, O'shea K, Kristian T, Hecker P, Des Rosiers R, Fiskum G, Fernandez-Alfonso M, Guzman-Ruiz R, Somoza B, Gil-Ortega M, Attane C, Castan-Laurell I, Valet P, Ruiz-Gayo M, Maroz-Vadalazhskaya N, Denissevich T, Shumavetz V, Ostrovskiy Y, Schrepper A, Schwarzer M, Amorim P, Schoepe M, Mohr F, Doenst T, Chiellini G, Ghelardoni S, Saba A, Marchini M, Frascarelli S, Raffaelli A, Scanlan T, Zucchi R, Van Den Akker N, Molin D, Kolk F, Jeukens F, Olde Engberink R, Waltenberger J, Post M, Van Den Akker N, Molin D, Verbruggen S, Schulten H, Post M, Waltenberger J, Rochais F, Kelly R, Aberg M, Johnell M, Wickstrom M, Siegbahn A, Dimitrakis P, Groppalli V, Ott D, Seifriz F, Suter T, Zuppinger C, Kashcheyeu Y, Mueller R, Wiesen M, Saric T, Gruendemann D, Hescheler J, Herzig S, Falcao-Pires I, Fontes-Sousa A, Lopes-Conceicao L, Bras-Silva C, Leite-Moreira A, Bukauskas F, Palacios-Prado N, Norheim F, Raastad T, Thiede B, Drevon C, Haugen F, Lindner D, Westermann D, Zietsch C, Schultheiss HP, Tschoepe C, Horn M, Graham H, Hall M, Richards M, Clarke J, Dibb K, Trafford A, Cheng CF, Lin H, Eigeldiger-Berthou S, Buntschu P, Frobert A, Flueck M, Tevaearai H, Kadner A, Mikhailov A, Torrado M, Centeno A, Lopez E, Lourido L, Castro Beiras A, Popov T, Srdanovic I, Petrovic M, Canji T, Kovacevic M, Jovelic A, Sladojevic M, Panic G, Kararigas G, Fliegner D, Regitz-Zagrosek V, De La Rosa Sanchez A, Dominguez J, Sedmera D, Franco D, Aranega A, Medunjanin S, Burgbacher F, Schmeisser A, Strasser R, Braun-Dullaeus R, Li X, Ma Y, Yang Y, Liu F, Han W, Chen B, Zhang J, Gao X, Bayliss C, Song W, Stuckey D, Dyer E, Leung MC, Monserrat L, Marston S, Sorriento D, Santulli G, Fusco A, Trimarco B, Iaccarino G, Revnic C, Ginghina C, Revnic F, Paillard M, Liang J, Strub G, Gomez L, Hait N, Allegood J, Lesnefsky E, Spiegel S, Zuchi C, Coiro S, Bettini M, Ciliberti G, Mancini I, Tritto I, Becker L, Ambrosio G, Adam T, Sharp S, Opie L, Lecour S, Khaliulin I, Parker J, Halestrap A, Kandasamy A, Schulz R, Schoepe M, Schwarzer M, Schrepper A, Osterholt M, Amorim P, Mohr F, Doenst T, Fernandez-Sanz C, Ruiz-Meana M, Miro-Casas E, Agullo E, Boengler K, Schulz R, Garcia-Dorado D, Menazza S, Canton M, Sheeran F, Di Lisa F, Pepe S, Borchi E, Manni M, Bargelli V, Giordano C, D'amati G, Cerbai E, Nediani C, Raimondi L, Micova P, Balkova P, Kolar F, Neckar J, Novak F, Novakova O, Schuchardt M, Toelle M, Pruefer N, Pruefer J, Jankowski V, Jankowski J, Van Der Giet M, Han W, Su Y, Zervou S, Aksentijevic D, Lygate C, Neubauer S, Seidel B, Korkmaz S, Radovits T, Hirschberg K, Loganathan S, Barnucz E, Karck M, Szabo G, Aggeli I, Kefaloyianni E, Beis I, Gaitanaki C, Lacerda L, Somers S, Opie L, Lecour S, Brack K, Coote J, Ng G, Paur H, Nikolaev V, Lyon A, Harding S, Bras-Silva C. Sunday, 18 July 2010. Cardiovasc Res 2010. [DOI: 10.1093/cvr/cvq176] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
40
|
Dohmen P, Christ T, linneweber J, Konertz W. The impact of a microbial sealant to reduce surgical site infection reduction in cardiac surgery. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1614] [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: 10/19/2022] Open
|
41
|
Agakishiev G, Balanda A, Bassini R, Belver D, Belyaev AV, Blanco A, Böhmer M, Boyard JL, Braun-Munzinger P, Cabanelas P, Castro E, Chernenko S, Christ T, Destefanis M, Díaz J, Dohrmann F, Dybczak A, Eberl T, Fabbietti L, Fateev OV, Finocchiaro P, Fonte P, Friese J, Fröhlich I, Galatyuk T, Garzón JA, Gernhäuser R, Gil A, Gilardi C, Golubeva M, González-Díaz D, Guber F, Hennino T, Holzmann R, Iori I, Ivashkin A, Jurkovic M, Kämpfer B, Kanaki K, Karavicheva T, Kirschner D, Koenig I, Koenig W, Kolb BW, Kotte R, Krizek F, Krücken R, Kühn W, Kugler A, Kurepin A, Lang S, Lange JS, Lapidus K, Liu T, Lopes L, Lorenz M, Maier L, Mangiarotti A, Markert J, Metag V, Michalska B, Michel J, Mishra D, Morinière E, Mousa J, Müntz C, Naumann L, Otwinowski J, Pachmayer YC, Palka M, Parpottas Y, Pechenov V, Pechenova O, Pietraszko J, Przygoda W, Ramstein B, Reshetin A, Roy-Stephan M, Rustamov A, Sadovsky A, Sailer B, Salabura P, Schmah A, Sobolev YG, Spataro S, Spruck B, Ströbele H, Stroth J, Sturm C, Sudol M, Tarantola A, Teilab K, Tlusty P, Traxler M, Trebacz R, Tsertos H, Wagner V, Weber M, Wisniowski M, Wojcik T, Wüstenfeld J, Yurevich S, Zanevsky YV, Zhou P, Zumbruch P. Deep subthreshold Xi;{-} production in Ar + KCl reactions at 1.76A GeV. Phys Rev Lett 2009; 103:132301. [PMID: 19905504 DOI: 10.1103/physrevlett.103.132301] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Indexed: 05/28/2023]
Abstract
We report first results on a deep subthreshold production of the doubly strange hyperon Xi;{-} in a heavy-ion reaction. At a beam energy of 1.76A GeV the reaction Ar + KCl was studied with the High Acceptance Di-Electron Spectrometer at SIS18/GSI. A high-statistics and high-purity Lambda sample was collected, allowing for the investigation of the decay channel Xi;{-} --> Lambdapi;{-}. The deduced Xi;{-}/(Lambda + Sigma;{0}) production ratio of (5.6 +/- 1.2_{-1.7};{+1.8}) x 10;{-3} is significantly larger than available model predictions.
Collapse
Affiliation(s)
- G Agakishiev
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Christ T, Wettwer E, Voigt N, Hála O, Radicke S, Matschke K, Várro A, Dobrev D, Ravens U. Pathology-specific effects of the IKur/Ito/IK,ACh blocker AVE0118 on ion channels in human chronic atrial fibrillation. Br J Pharmacol 2008; 154:1619-30. [PMID: 18536759 DOI: 10.1038/bjp.2008.209] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND AND PURPOSE This study was designed to establish the pathology-specific inhibitory effects of the IKur/Ito/IK,ACh blocker AVE0118 on atrium-selective channels and its corresponding effects on action potential shape and effective refractory period in patients with chronic AF (cAF). EXPERIMENTAL APPROACH Outward K+-currents of right atrial myocytes and action potentials of atrial trabeculae were measured with whole-cell voltage clamp and microelectrode techniques, respectively. Outward currents were dissected by curve fitting. KEY RESULTS Four components of outward K+-currents and AF-specific alterations in their properties were identified. Ito was smaller in cAF than in SR, and AVE0118 (10 microM) apparently accelerated its inactivation in both groups without reducing its amplitude. Amplitudes of rapidly and slowly inactivating components of IKur were lower in cAF than in SR. The former was abolished by AVE0118 in both groups, the latter was partially blocked in SR, but not in cAF, even though its inactivation was apparently accelerated in cAF. The large non-inactivating current component was similar in magnitude in both groups, but decreased by AVE0118 only in SR. AVE0118 strongly suppressed AF-related constitutively active IK,ACh and prolonged atrial action potential and effective refractory period exclusively in cAF. CONCLUSIONS AND IMPLICATIONS In atrial myocytes of cAF patients, we detected reduced function of distinct IKur components that possessed decreased component-specific sensitivity to AVE0118 most likely as a consequence of AF-induced electrical remodelling. Inhibition of profibrillatory constitutively active IK,ACh may lead to pathology-specific efficacy of AVE0118 that is likely to contribute to its ability to convert AF into SR.
Collapse
Affiliation(s)
- T Christ
- Department of Pharmacology and Toxicology, Dresden University of Technology, Dresden, Germany
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Agakichiev G, Agodi C, Alvarez-Pol H, Bałanda A, Bertini D, Bielcik J, Bellia G, Böhmer M, Bokemeyer H, Boyard JL, Braun-Munzinger P, Cabanelas P, Chernenko S, Christ T, Coniglione R, Cosentino L, Díaz J, Dohrmann F, Durán I, Eberl T, Enghardt W, Fabbietti L, Fateev O, Fernandez C, Finocchiaro P, Friese J, Fröhlich I, Fuentes B, Garabatos C, Garzón JA, Gernhäuser R, Gilardi C, Golubeva M, González-Díaz D, Grosse E, Guber F, Hennino T, Hlavac S, Holzmann R, Homolka J, Ierusalimov A, Iori I, Ivashkin A, Jaskuła M, Jurkovic M, Kagarlis M, Kajetanowicz M, Kämpfer B, Kanaki K, Karavicheva T, Kastenmüller A, Kidoń L, Kienle P, Koenig I, Koenig W, Körner HJ, Kolb BW, Kotte R, Krücken R, Kugler A, Kühn W, Kulessa R, Kurepin A, Lang S, Lange S, Lehnert J, Lins E, Magestro D, Maiolino C, Malarz A, Markert J, Metag V, Mousa J, Münch M, Müntz C, Naumann L, Nekhaev A, Novotny J, Otwinowski J, Pachmayer YC, Pechenov V, Pérez T, Piattelli P, Pietraszko J, Pleskac R, Płoskoń M, Pospísil V, Prokopowicz W, Przygoda W, Ramstein B, Reshetin A, Ritman J, Roy-Stephan M, Rustamov A, Sadovsky A, Sailer B, Salabura P, Sánchez M, Sapienza P, Schmah A, Schön H, Schön W, Schröder C, Schwab E, Simon RS, Smolyankin V, Smykov L, Spataro S, Spruck B, Ströbele H, Stroth J, Sturm C, Sudoł M, Suk M, Taranenko A, Tlusty P, Toia A, Traxler M, Tsertos H, Vassiliev D, Vázquez A, Wagner V, Waluś W, Wiśniowski M, Wójcik T, Wüstenfeld J, Zanevsky Y, Zeitelhack K, Zovinec D, Zumbruch P. Dielectron production in 12C+12C collisions at 2A GeV with the HADES spectrometer. Phys Rev Lett 2007; 98:052302. [PMID: 17358850 DOI: 10.1103/physrevlett.98.052302] [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] [Subscribe] [Scholar Register] [Received: 08/10/2006] [Indexed: 05/14/2023]
Abstract
The invariant-mass spectrum of e+e- pairs produced in 12C+12C collisions at an incident energy of 2 GeV per nucleon has been measured for the first time. The measured pair production probabilities span over 5 orders of magnitude from the pi(0)-Dalitz to the rho/omega invariant-mass region. Dalitz decays of pi(0) and eta account for all the yield up to 0.15 GeV/c(2), but for only about 50% above this mass. A comparison with model calculations shows that the excess pair yield is likely due to baryon-resonance and vector-meson decays. Transport calculations based on vacuum spectral functions fail, however, to describe the entire mass region.
Collapse
Affiliation(s)
- G Agakichiev
- II.Physikalisches Institut, Justus Liebig Universität Giessen, 35392 Giessen, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Christ T, Engel A, Ravens U, Kaumann AJ. Cilostamide potentiates more the positive inotropic effects of (-)-adrenaline through beta(2)-adrenoceptors than the effects of (-)-noradrenaline through beta (1)-adrenoceptors in human atrial myocardium. Naunyn Schmiedebergs Arch Pharmacol 2006; 374:249-53. [PMID: 17106669 DOI: 10.1007/s00210-006-0119-5] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2006] [Accepted: 10/28/2006] [Indexed: 10/23/2022]
Abstract
Activation of both beta(1)- and beta(2)-adrenoceptors increases the contractility of human atrial myocardium through cyclic AMP-dependent pathways. Cyclic AMP is hydrolised by phosphodiesterases, but little is known about which isoenzymes catalyse inotropically relevant cyclic AMP accumulated upon stimulation of beta-adrenoceptor subtypes. We have compared the positive inotropic effects of (-)-noradrenaline and (-)-adrenaline, mediated through beta(1)- and beta(2)-adrenoceptors, respectively, in the absence and presence of the PDE3 inhibitor cilostamide (300 nM) or PDE4 inhibitor rolipram (1 muM) on human atrial trabeculae from non-failing hearts. Cilostamide, but not rolipram, potentiated the effects of both (-)-noradrenaline and (-)-adrenaline. Cilostamide increased the -logEC(50)M of (-)-adrenaline more than of (-)-noradrenaline (P < 0.05), regardless of whether or not the patients had been chronically treated with beta-blockers. The results are consistent with a greater PDE3-catalysed hydrolysis of inotropically relevant cyclic AMP produced through beta(2)-adrenoceptors than beta(1)-adrenoceptors in human atrium.
Collapse
MESH Headings
- 3',5'-Cyclic-AMP Phosphodiesterases/metabolism
- Adrenergic beta-Antagonists
- Aged
- Cyclic AMP/metabolism
- Cyclic Nucleotide Phosphodiesterases, Type 3
- Cyclic Nucleotide Phosphodiesterases, Type 4
- Dose-Response Relationship, Drug
- Epinephrine/pharmacology
- Female
- Heart Atria/drug effects
- Humans
- Hydrolysis
- In Vitro Techniques
- Male
- Middle Aged
- Myocardial Contraction/drug effects
- Myocardium
- Norepinephrine/pharmacology
- Phosphodiesterase Inhibitors/pharmacology
- Quinolones/pharmacology
- Receptors, Adrenergic, beta-1/drug effects
- Receptors, Adrenergic, beta-1/metabolism
- Receptors, Adrenergic, beta-2/drug effects
- Receptors, Adrenergic, beta-2/metabolism
- Rolipram/pharmacology
Collapse
Affiliation(s)
- T Christ
- Department of Pharmacology and Toxicology, Dresden University of Technology, Dresden, Germany,
| | | | | | | |
Collapse
|
45
|
Christ T, Wettwer E, Ravens U, Olesen S, Grunnet M. Activation of outward potassium current ikr by the diphenylurea ns 1643 shortens action potential in gunea pig papillary muscles. J Mol Cell Cardiol 2006. [DOI: 10.1016/j.yjmcc.2006.03.188] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
46
|
Stehr S, Christ T, Rasche B, Rasche S, Wettwer E, Deussen A, Koch T, Hübler M, Ravens U. Levosimendan reverses the myocardial depression induced by ropivacaine. J Mol Cell Cardiol 2006. [DOI: 10.1016/j.yjmcc.2006.03.086] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
47
|
Dobrev D, Friedrich A, Voigt N, Jost N, Wettwer E, Christ T, Knaut M, Ravens U. The G protein-gated potassium current I(K,ACh) is constitutively active in patients with chronic atrial fibrillation. Circulation 2005; 112:3697-706. [PMID: 16330682 DOI: 10.1161/circulationaha.105.575332] [Citation(s) in RCA: 333] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND The molecular mechanism of increased background inward rectifier current (IK1) in atrial fibrillation (AF) is not fully understood. We tested whether constitutively active acetylcholine (ACh)-activated I(K,ACh) contributes to enhanced basal conductance in chronic AF (cAF). METHODS AND RESULTS Whole-cell and single-channel currents were measured with standard voltage-clamp techniques in atrial myocytes from patients with sinus rhythm (SR) and cAF. The selective I(K,ACh) blocker tertiapin was used for inhibition of I(K,ACh). Whole-cell basal current was larger in cAF than in SR, whereas carbachol (CCh)-activated I(K,ACh) was lower in cAF than in SR. Tertiapin (0.1 to 100 nmol/L) reduced I(K,ACh) in a concentration-dependent manner with greater potency in cAF than in SR (-logIC50: 9.1 versus 8.2; P<0.05). Basal current contained a tertiapin-sensitive component that was larger in cAF than in SR (tertiapin [10 nmol/L]-sensitive current at -100 mV: cAF, -6.7+/-1.2 pA/pF, n=16/5 [myocytes/patients] versus SR, -1.7+/-0.5 pA/pF, n=24/8), suggesting contribution of constitutively active I(K,ACh) to basal current. In single-channel recordings, constitutively active I(K,ACh) was prominent in cAF but not in SR (channel open probability: cAF, 5.4+/-0.7%, n=19/9 versus SR, 0.1+/-0.05%, n=16/9; P<0.05). Moreover, IK1 channel open probability was higher in cAF than in SR (13.4+/-0.4%, n=19/9 versus 11.4+/-0.7%, n=16/9; P<0.05) without changes in other channel characteristics. CONCLUSIONS Our results demonstrate that larger basal inward rectifier K+ current in cAF consists of increased IK1 activity and constitutively active I(K,ACh). Blockade of I(K,ACh) may represent a new therapeutic target in AF.
Collapse
Affiliation(s)
- D Dobrev
- Department of Pharmacology and Toxicology, Medical Faculty, Dresden University of Technology, Dresden, Germany.
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Mueller MP, Christ T, Dobrev D, Nitsche I, Stehr SN, Ravens U, Koch T. Teaching antiarrhythmic therapy and ECG in simulator-based interdisciplinary undergraduate medical education. Br J Anaesth 2005; 95:300-4. [PMID: 15964889 DOI: 10.1093/bja/aei174] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Third-year students in the Dresden Medical School Programme undergo a 6 week course 'Basics of Drug Therapy' in a problem-based learning curriculum. As part of this course a practical seminar about antiarrhythmic drugs and ECG was set up. This study was conducted to evaluate the use of a simulator in this course. METHODS A total of 234 students were randomly allocated to receive instructions with (Group S) or without (Group C [control]) the use of a simulator. After a lecture on antiarrhythmic drugs, arrhythmias were presented to Group S using an advanced life support (ALS) manikin. The students were asked to administer a drug or to defibrillate, and the outcome was shown on the monitor. The students in Group C were presented with ECG charts without a simulator. The course was evaluated by a questionnaire and multiple-choice questions (MCQ) about arrhythmias. RESULTS We received 222 questionnaires. The content-time ratio was rated almost perfect in both groups, but the students in Group S rated the course better suited to link theory and practice. Students in Group S considered the simulator helpful and a good tool for teaching, and the extra effort to be worthwhile. A significantly higher number of students in Group S preferred electric cardioversion as therapy for ventricular tachycardia. CONCLUSIONS An ALS manikin can be an effective tool in teaching clinical pharmacology.
Collapse
Affiliation(s)
- M P Mueller
- Interdisciplinary Simulation Centre, Department of Anaesthesiology and Intensive Care Medicine, University Hospital Carl Gustav Carus, Dresden University of Technology, Germany.
| | | | | | | | | | | | | |
Collapse
|
49
|
Luzio S, Tovar C, Piehlmeier W, Eberl S, Lätzsch G, Fallböhmer E, Evans J, Owens DR, Wollersheim T, Bausch F, Rupprecht C, Schmidt V, Rumpel E, Mankopf M, Christ T, Jähnichen-Stöcker G, Landgraf R. DIADEM: implementation of a comprehensive disease management programme for type 2 diabetes. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pdi.764] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
50
|
Christ T, Boknik P, Wöhrl S, Wettwer E, Graf EM, Bosch RF, Knaut M, Schmitz W, Ravens U, Dobrev D. L-type Ca2+ current downregulation in chronic human atrial fibrillation is associated with increased activity of protein phosphatases. Circulation 2004; 110:2651-7. [PMID: 15492323 DOI: 10.1161/01.cir.0000145659.80212.6a] [Citation(s) in RCA: 197] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Although downregulation of L-type Ca2+ current (I(Ca,L)) in chronic atrial fibrillation (AF) is an important determinant of electrical remodeling, the molecular mechanisms are not fully understood. Here, we tested whether reduced I(Ca,L) in AF is associated with alterations in phosphorylation-dependent channel regulation. METHODS AND RESULTS We used whole-cell voltage-clamp technique and biochemical assays to study regulation and expression of I(Ca,L) in myocytes and atrial tissue from 148 patients with sinus rhythm (SR) and chronic AF. Basal I(Ca,L) at +10 mV was smaller in AF than in SR (-3.8+/-0.3 pA/pF, n=138/37 [myocytes/patients] and -7.6+/-0.4 pA/pF, n=276/86, respectively; P<0.001), though protein levels of the pore-forming alpha1c and regulatory beta2a channel subunits were not different. In both groups, norepinephrine (0.01 to 10 micromol/L) increased I(Ca,L) with a similar maximum effect and comparable potency. Selective blockers of kinases revealed that basal I(Ca,L) was enhanced by Ca2+/calmodulin-dependent protein kinase II in SR but not in AF. Norepinephrine-activated I(Ca,L) was larger with protein kinase C block in SR only, suggesting decreased channel phosphorylation in AF. The type 1 and type 2A phosphatase inhibitor okadaic acid increased basal I(Ca,L) more effectively in AF than in SR, which was compatible with increased type 2A phosphatase but not type 1 phosphatase protein expression and higher phosphatase activity in AF. CONCLUSIONS In AF, increased protein phosphatase activity contributes to impaired basal I(Ca,L). We propose that protein phosphatases may be potential therapeutic targets for AF treatment.
Collapse
Affiliation(s)
- T Christ
- Department of Pharmacology,Dresden University of Technology, Dresden, Germany
| | | | | | | | | | | | | | | | | | | |
Collapse
|