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Bengel P, Beuthner BE, Topci R, Pietzner M, Hasenfuss G, Toischer K, Schnelle M. Metabolic modulation as a common adaptive mechanism in patients with different subtypes of aortic valve stenosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2940] [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: 11/12/2022] Open
Abstract
Abstract
Background
Aortic valve stenosis (AS) is a rapidly growing global health problem due to aging and population growth. If treatment by aortic valve replacement (AVR) is delayed, this leads to poor recovery of cardiac function and marked increase of mortality. In conditions of AS or heart failure a cardiac remodelling occurs including a change in cardiac substrate utilization. However, it is difficult to determine the stage of AS-induced cardiac remodelling and therefore the reversibility of this changes after AVR. As cardiac metabolism might be therapeutic target for patients not recovering after valve replacement a better understanding of the metabolic remodelling in different AS subtypes is necessary. Metabolomics constitute a potent screening tool for defining changes in global and cardiac-specific metabolism in cardiovascular disease.
Methods/Results
Serum metabolomic profiling for 1293 metabolites was performed in serum samples of 40 AS-patients and 10 healthy controls using Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectroscopy. AS-patients were divided in four groups (10 patients/group) with respect to ejection fraction (EF, normal/reduced) and aortic valve gradient (> or <40 mmHg). Principal component analysis revealed a clear difference of metabolic profiles in AS-patients vs controls. However, less separation between AS-subtypes could be detected. A Random Forest Analysis comparing all AS-patients to healthy controls resulted in a predictive accuracy of 94%. In AS-patients we observed an increase of acyl carnitines compared to control indicating an alteration of myocardial free fatty acid oxidation. Moreover, we detected a higher ketone body concentrations in AS-patients that could serve as an alternative fuel source for the heart. Interestingly, no differences between the AS subgroups could be detected indicating that changes occur independently from EF and AS-gradient. Additionally, several compounds involved in nitrogen balance were increased in AS-patients while numerous amino acids were decreased, possibly also due to alternative energy production. Increased circulating heme catabolites have been associated with heart failure. Here, we found increased heme catabolites only in patients with low EF and high-gradient with unclear significance.
Conclusion
In summary, our study indicates a shift of cardiac substrate utilization in patients with AS from free fatty acid oxidation to alternative substrates like ketone bodies and amino acids. As no differences between AS subtypes were observed, this metabolic remodelling may occur as an adaptive mechanism independent from EF and AS-gradient in patients with severe AS. Since our study was conducted by an unspecific approach with a small sample size, further investigation is necessary for a better understanding of the specific myocardial metabolic changes in AS patients.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- P Bengel
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology , Gottingen , Germany
| | - B E Beuthner
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology , Gottingen , Germany
| | - R Topci
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology , Gottingen , Germany
| | - M Pietzner
- Medical Research Council Epidemiology Unit , Cambridge , United Kingdom
| | - G Hasenfuss
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology , Gottingen , Germany
| | - K Toischer
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology , Gottingen , Germany
| | - M Schnelle
- University Medical Center of Gottingen (UMG), Institute for Clinical Chemistry , Goettingen , Germany
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2
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Schlogl S, Schlogl KS, Bengel P, Haarmann H, Rasenack E, Hasenfuss G, Zabel M. Long-term comparison of contact force-guided versus conventional irrigated cool-tip circumferential pulmonary vein isolation of atrial fibrillation. Europace 2022. [DOI: 10.1093/europace/euac053.193] [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: None.
Background
In atrial fibrillation (AF) patients, pulmonary vein isolation by means of catheter ablation (CA) is the most effective therapeutic option in order to maintain sinus rhythm. To improve successful PV isolation and effective lesion creation, contact force (CF)-sensing catheters were developed and have become routinely available. Previous studies did not always show superior clinical efficacy in comparison with non-CF CA. Moreover, data about long term clinical outcome are still lacking, especially by patients with persistent atrial fibrillation.
Purpose
The aim of the present study was to compare the outcome of CF-controlled ablation versus non-CF guided radiofrequency (RF) ablation of AF with regard to ablation characteristics and AF recurrence.
Methods
Consecutive patients, who underwent a mean 1.7±0.9 point-by-point RF CA for AF at our hospital between January of 2014 and October of 2017, were enrolled in the study. 354 patients were ablated without CF. After routine availability of CF catheters in October of 2016, 165 consecutive patients were ablated using CF. In case of crossover between the groups, follow up was censored. The primary endpoint was any recurrence documented as symptomatic or asymptomatic atrial tachycardia or atrial fibrillation >30 s after the 3-month blanking period. Secondary endpoints were procedural characteristics and periprocedural complications.
Results
62% of the enrolled patients had persistent AF. There were no significant differences in baseline characteristics (male gender 63% vs 62%, P=0.846; persistent AF 61% vs. 65%, P=0.496; BMI 29.0±5.2 vs 29.3±5.2 kg/m2, P=0.582; hypertension 76% vs 80%, P=0.369; coronary artery disease 14% vs 20%, P=0.076; left atrial diameter 43.3±7.0 vs 43.8±7.3 mm, P=0.386; diabetes 13% vs 10%, P=0.312; sleep apnoea 7% vs 10%, P=0.167) between the groups, except for older age in the CF group (62.8±10.0 vs 65.0±10.4 years, P=0.021).
In the first 12 months arrythmia-free survival was significantly higher in the CF group (Figure 1, Log-Rank (Mantel-Cox) P=0.049). Over 2.8 ± 1.8 years of follow-up, 47% of the patients in the CF group remained free of AF recurrence compared to 36% in the non-CF group (Log-Rank (Mantel-Cox) P=0.236). In multivariable Cox regression analysis using backward elimination, non-CF ablation was an independent risk factor for AF recurrence (HR=1.31; P=0.027) besides age (HR=1.023; P=0.001), persistent AF (HR=1.481; P=0.001), and left atrial diameter (HR=1.023; P=0.004). All other clinical factors were non-significant (Figure 2).
Total fluoroscopy time (27.6±16.0 vs. 14.4±7.9 min) and total procedure time (133.4±38.8 vs. 110.1±28.0 min) were significantly lower for CF guided CA (P<0.001). Complication rates did not differ between groups (P=0.123).
Conclusions
In our long-term single center study the AF recurrence rate was lower after CF PVI as compared to non-CF PVI.
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Affiliation(s)
- S Schlogl
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - KS Schlogl
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - P Bengel
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - H Haarmann
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - E Rasenack
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - G Hasenfuss
- University Medical Center of Gottingen (UMG), Goettingen, Germany
| | - M Zabel
- University Medical Center of Gottingen (UMG), Goettingen, Germany
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Dybkova N, Ahmad S, Tirilomis P, Bengel P, Pabel S, Maier L, Hasenfuss G, Sossalla S. CaMKII delta interaction with neuronal sodium channel Nav1.8 contributes to arrhythmogenic triggers in failing human and mouse cardiomyocytes. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3693] [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
In heart failure, enhanced persistent current through neuronal sodium channel NaV1.8 (INaL) may induce influx of Na+ into cardiomyocytes. This may cause Ca2+ influx via the Na+/Ca2+ exchanger leading to increased proarrhythmogenic diastolic sarcoplasmic reticulum (SR) Ca2+ leak. This Ca2+ may activate Ca2+/calmodulin-dependent protein kinase IIδ (CaMKIIδ) which can induce INaL augmentation by phosphorylating NaV1.5 channels leading to a vicious cycle between INaL and CaMKIIδ.
Here, we examined whether CaMKIIδ associates with NaV1.8 in human and mouse cardiomyocytes thereby regulating its function. Interaction and co-localisation of CaMKIIδ and NaV1.8 were confirmed by co-immunoprecipitation and immunocytochemistry. Whole-cell patch clamp showed a potent reduction of INaL after addition of novel specific Nav1.8 blockers, either A-803467 (30 nmol/L) or PF-01247324 (1 μmol/L) in failing mouse cardiomyocytes overexpressing CaMKIIδc (CaMKIIδc+/T: −109.4±10.6 vs A-803467: −56.9±11.7 and PF-01247324:−-69.9±8.6 A*ms*F-1). In failing human cardiomyocytes inhibition of either NaV1.8 or CaMKIIδ using AIP (1 μmol/L) or AIP and PF-01247324 together led to a significant and comparable decrease of INaL (control: −93.7±7.1 vs PF-01247324: −56.8±6.6; AIP: −44.2±6.6; AIP+PF-01247324: −39.8±5.4 A*ms*F-1). Furthermore, to confirm whether observed alterations in INaL after inhibition of NaV1.8 are not due to an overall reduction in peak sodium current (INa) we measured INa properties in mouse cardiomyocytes. Importantly, we observed no difference neither in the peak nor in inactivation between wild type (WT), WT with PF-01247324 and in mice lacking NaV1.8. Using confocal microscopy we investigated whether inhibition of the NaV1.8-mediated INaL could attenuate the increase of proarrhythmogenic SR Ca2+ spark frequency (CaSpF) caused by overexpression of CaMKIIδ in mice. We observed a significant reduction of CaSpF in both NaV1.8 inhibitor groups (PF-01247324: 0.51±0.08 and A-803467: 0.57±0.08 μm–1 s–1) compared to control (1.00±0.13 μm–1 s–1). Incubation of human failing cardiomyocytes with either AIP (0.35±0.06 μm–1 s–1) or PF-01247324 (0.44±0.11 μm–1 s–1), or blocking CaMKIIδ and NaV1.8 together (0.30±0.08 μm–1 s–1) resulted in significant decrease of CaSpF compared to control (0.89±0.13 μm–1 s–1).
In conclusion, we show for the first time subcellular localisation of the neuronal sodium channel NaV1.8 and its interaction with CaMKIIδ in both human and mouse ventricular cardiomyocytes. Moreover, pharmacological inhibition of NaV1.8 caused a reduction of the augmented INaL and spontaneous diastolic SR-Ca2+ release in both failing human and mouse cardiomyocytes. NaV1.8 and CaMKIIδ interaction seem to play a relevant role for the generation of arrhythmogenic triggers (INaL & spontaneous diastolic SR-Ca2+ release) in both human and mouse cardiomyocytes from failing hearts.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- N Dybkova
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S Ahmad
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - P Tirilomis
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - P Bengel
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S Pabel
- University, Dept. of Clinic and Polyclinic for Internal Medicine, Regensburg, Germany
| | - L.S Maier
- University, Dept. of Clinic and Polyclinic for Internal Medicine, Regensburg, Germany
| | - G Hasenfuss
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S Sossalla
- University, Dept. of Clinic and Polyclinic for Internal Medicine, Regensburg, Germany
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Tirilomis P, Ahmad S, Bengel P, Pabel S, Maier L, Hasenfuss G, Dybkova N, Sossalla ST. P1596Interaction of CaMKII and NaV1.8 modulates cardiac electrophysiology in human heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0355] [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: 11/14/2022] Open
Abstract
Abstract
Introduction
In human heart failure, electrical remodeling contributes to the risk of arrhythmia generation. Increased expression of Ca/Calmodulin-dependent protein kinase IIδ (CaMKIIδ) and an enhanced persistent Na current (INaL) have been linked to arrhythmogenesis. CaMKIIδ increases INaL via regulation of sodium channels thereby contributing to arrhythmias through early- and delayed-afterdepolarizations (EADs and DADs). Genome-wide association studies (GWAS) have described the implication of the neuronal sodium channel isoform NaV1.8 (SCN10A) in cardiac electrophysiology showing modulation in cardiac conduction. We showed that the expression of the isoform Nav1.8 is significantly increased in human failing cardiomyocytes and contributes substantially to the enhanced INaL.
Purpose
We investigated a potential interaction of CaMKIIδ and NaV1.8 and thereby its role in arrhythmia generation and electrophysiology in human and murine failing hearts.
Methods
Cardiomyocytes were isolated from explanted failing hearts and CaMKIIδ transgenic (TG) mice. We performed immunostainings and co-immunoprecipitation (Co-IP) to show interactions of CaMKIIδ and Nav1.8 in isolated cardiomyocytes and homogenates. Whole-cell patch clamp experiments were conducted in isolated human and murine ventricular cardiomyocytes. Additionally, Ca2+ transients were measured using epifluorescence microscopy with the Ca2+ dye fura-2 (10μmol/L) whereas Ca2+ sparks measurements were performed by using confocal microscopy with the Ca2+ dye fluo-4 (10μmol/L). PF-01247324 is a novel specific NaV1.8 inhibitor (orally bioavailable; 1 μmol/L) and autocamtide inhibitory peptide (AIP, 1 μmol/L) was used to inhibit CaMKIIδ.
Results
Co-immunoprecipitation experiments revealed an association of CaMKIIδ and Nav1.8 in human homogenates compared to healthy controls. Furthermore, immunohistochemistry stainings in isolated human cardiomyocytes showed a co-localization of CaMKIIδ and NaV1.8 at the intercalated disc and t-tubules. We observed a significant reduction of INaL integral and proarrhythmic SR-Ca2+ spark frequency (CaSpF) after addition of either PF-01247324 or the CaMKIIδ inhibitor AIP in failing human and murine ventricular cardiomyocytes. When PF-01247324 and AIP were added together, the decrease in INaL integral and CaSpF was comparable to PF-01247324 alone in human failing cardiomyocytes. Inhibition of NaV1.8 did not show an effect on Ca2+ transient amplitude or Ca2+ transient decay at different stimulation frequencies in CaMKIIδ TG cardiomyocytes.
Conclusion
Our results demonstrate the significance of both CaMKIIδ and NaV1.8 in INaL generation and their detrimental interaction. This data suggest that increased CaMKIIδ activity plays a substantial role for the activation of NaV1.8-mediated late sodium current and SR-Ca2+ leak.
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Affiliation(s)
- P Tirilomis
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S Ahmad
- University Hospital Regensburg, 2nd Department of Medicine, Regensburg, Germany
| | - P Bengel
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S Pabel
- University Hospital Regensburg, 2nd Department of Medicine, Regensburg, Germany
| | - L Maier
- University Hospital Regensburg, 2nd Department of Medicine, Regensburg, Germany
| | - G Hasenfuss
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - N Dybkova
- University Medical Center of Gottingen (UMG), Gottingen, Germany
| | - S T Sossalla
- University Hospital Regensburg, 2nd Department of Medicine, Regensburg, Germany
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5
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Bengel P, Krekeler C, Ahmad S, Tirilomis P, Toischer K, Dybkova N, Maier LS, Hasenfuss G, Sossalla S. 4966Targeting INaL by a neuronal sodium channel isoform improves survival in a CaMKII-transgenic heart failure mouse model. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0025] [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: 11/12/2022] Open
Abstract
Abstract
Background
Cardiac pathologies like hypertrophy and heart failure are known to be associated with proarrhythmogenic triggers like early- (EADs) and delayed afterdepolarizations (DADs) that can be partly attributed to an augmentation of late sodium current (INaL). Enhanced INaL is closely connected with increased activity of Ca2+/calmodulin dependent-kinase II (CaMKII) in pathology as it is enhanced by CaMKII on the one hand but can also indirectly increase CaMKII-activity on the other. We recently found neuronal sodium channel NaV1.8 to be involved in INaL-augmentation in heart failure and cardiac hypertrophy. Here, we studied possible antiarrhythmic effects of NaV1.8-inhibition in a transgenic mouse model with enhanced CaMKII-expression by selectively knocking out NaV1.8.
Methods/Results
To investigate antiarrhythmic effects of NaV1.8-depletion in-vivo and in-vitro we crossbred CaMKII-transgenic mice (CaMKII+/T) with NaV1.8-knock-out mice (SCN10A−/−). Surprisingly, CaMKII+/T-mice lacking NaV1.8 (CaMKII+/T & SCN10A−/−) showed a significantly improved survival compared to CaMKII+/T alone (97.5 vs 72.0 days, p<0.05). Heart weight to tibia length ratio was significantly increased in CaMKII+/T-mice compared to wild-type, without any differences between CaMKII+/T and CaMKII+/T & SCN10A−/−. To investigate the underlying mechanisms out of this observation we isolated single cardiomyocytes and performed patch-clamp experiments as well as confocal microscopy to measure Ca2+-transients and diastolic Ca2+-waves. INaL-integral was significantly smaller in cardiomyocytes from CaMKII+/T & SCN10A−/−-mice compared to CaMKII+/T alone. During action potential recordings, significantly less afterdepolarizations occurred in CaMKII+/T & SCN10A−/− compared to cardiomyocytes from CaMKII+/T -mice (16.7/min vs 34.9/min, p<0.05). There was a trend of less cells exhibiting diastolic Ca2+-waves in Ca2+-measurements from CaMKII+/T & SCN10A−/− compared to CaMKII+/T (15% vs 25%, p=0.09). As some cells showed more than one event, we calculated the frequency of Ca2+-waves and found a significant reduction of Ca2+-waves in CaMKII+/T & SCN10A−/− vs. CaMKII+/T (22.8/min vs 43.0/min, p<0.05). Moreover, the time to the first event was significantly longer in CaMKII+/T & SCN10A−/−. Ca2+-transient amplitude (F/F0) was significantly lower in CaMKII+/T compared to CaMKII+/T & SCN10A−/− (4.6 vs. 5.3, p=0.05). Further, Ca2+-extrusion from the cytosol was significantly faster in CaMKII+/T & SCN10A−/−.
Conclusion
Our data demonstrates, that inhibition of INaL by targeting NaV1.8 has a potent antiarrhythmic potential as we found a reduction of EADs, DADs and diastolic Ca2+-waves in CaMKII+/T & SCN10A−/−-cardiomyocytes. This antiarrhythmic potential appears to be potent enough to improve survival and to rescue the proarrhythmogenic phenotype of CaMKII-overexpression. However, further in-vivo experiments are necessary to investigate NaV1.8-inhibition for a possible therapeutic approach.
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Affiliation(s)
- P Bengel
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - C Krekeler
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - S Ahmad
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - P Tirilomis
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - K Toischer
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - N Dybkova
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - L S Maier
- University Hospital Regensburg, Clinic and Polyclinic for internal medicine II, Regensburg, Germany
| | - G Hasenfuss
- University Medical Center Gottingen (UMG), Department for Cardiology and Pneumology, Gottingen, Germany
| | - S Sossalla
- University Hospital Regensburg, Clinic and Polyclinic for internal medicine II, Regensburg, Germany
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Pabel S, Bollenberg H, Bengel P, Tirilomis P, Mustroph J, Wagner S, Fischer T, Streckfuss-Boemeke K, Maier L, Hasenfuss G, Hamdani N, Sossalla S. P1509Empagliflozin directly improves diastolic function in human heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S Pabel
- University Hospital Regensburg, Internal Medicine II, Heart Center, Regensburg, Germany
| | - H Bollenberg
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - P Bengel
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - P Tirilomis
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - J Mustroph
- University Hospital Regensburg, Internal Medicine II, Heart Center, Regensburg, Germany
| | - S Wagner
- University Hospital Regensburg, Internal Medicine II, Heart Center, Regensburg, Germany
| | - T Fischer
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - K Streckfuss-Boemeke
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - L Maier
- University Hospital Regensburg, Internal Medicine II, Heart Center, Regensburg, Germany
| | - G Hasenfuss
- University Medical Center Gottingen (UMG), Dept. of Cardiology and Pneumology, Heart Center, Gottingen, Germany
| | - N Hamdani
- Ruhr University Bochum (RUB), Department of Cardiovascular Physiology, Bochum, Germany
| | - S Sossalla
- University Hospital Regensburg, Internal Medicine II, Heart Center, Regensburg, Germany
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Ahmad S, Dybkova N, Tirilomis P, Bengel P, Streckfuss-Boemeke K, Maier LS, Hasenfuss G, Sossalla S. P5697Modulation of CaMKII-dependent proarrhythmias by inhibiting Nav1.8 in failing human and mouse ventricular cardiomyocytes. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5697] [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] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Ahmad
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - N Dybkova
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - P Tirilomis
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - P Bengel
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - K Streckfuss-Boemeke
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - L S Maier
- University Hospital Regensburg, Clinic and Polyclinic for Internal Medicine II, Regensburg, Germany
| | - G Hasenfuss
- University Medical Center Gottingen (UMG), Cardiology and Pneumology, Gottingen, Germany
| | - S Sossalla
- University Hospital Regensburg, Clinic and Polyclinic for Internal Medicine II, Regensburg, Germany
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Ahmad S, Tirilomis P, Bengel P, Dybkova N, Hasenfuss G, Maier L, Sossalla S. P6283Inhibition of neuronal Na channel NaV1.8 reduces INaL and SR-Ca leak in isolated failing human and mouse ventricular cardiomyocytes. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p6283] [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: 11/12/2022] Open
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