Hartmann, Nico Horst

[["dc.bibliographiccitation.journal","European Heart Journal"],["dc.bibliographiccitation.volume","37"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Pabel, Stefanie Corinna"],["dc.contributor.author","Herting, J. Jonas"],["dc.contributor.author","Schotola, Hanna"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Frey, Norbert"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Sossalla, Samuel T."],["dc.date.accessioned","2018-11-07T10:10:28Z"],["dc.date.available","2018-11-07T10:10:28Z"],["dc.date.issued","2016"],["dc.format.extent","720"],["dc.identifier.isi","000383869503395"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39863"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.publisher.place","Oxford"],["dc.relation.eventlocation","Rome, ITALY"],["dc.relation.issn","1522-9645"],["dc.relation.issn","0195-668X"],["dc.title","Antiarrhythmic effects of dantrolene in human cardiomyocytes from patients with atrial fibrillation or heart failure"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1067"],["dc.bibliographiccitation.journal","European Heart Journal"],["dc.bibliographiccitation.lastpage","1068"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Mason, F."],["dc.contributor.author","Braun, I."],["dc.contributor.author","Voigt, Niels"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Sossalla, Samuel Tobias"],["dc.date.accessioned","2018-11-07T09:53:36Z"],["dc.date.available","2018-11-07T09:53:36Z"],["dc.date.issued","2015"],["dc.identifier.isi","000361205107171"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36361"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.publisher.place","Oxford"],["dc.relation.eventlocation","London, ENGLAND"],["dc.relation.issn","1522-9645"],["dc.relation.issn","0195-668X"],["dc.title","The combined effects of ranolazine and low dose dronedarone on atrial vs. ventricular electrophysiology; a novel therapeutic hope?"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","95"],["dc.bibliographiccitation.journal","Journal of Molecular and Cellular Cardiology"],["dc.bibliographiccitation.lastpage","106"],["dc.bibliographiccitation.volume","94"],["dc.contributor.author","Hartmann, Nico H."],["dc.contributor.author","Mason, Fleur E."],["dc.contributor.author","Braun, Inga"],["dc.contributor.author","Pabel, Steffen"],["dc.contributor.author","Voigt, Niels"],["dc.contributor.author","Schotola, Hanna"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Dobrev, Dobromir"],["dc.contributor.author","Danner, Bernhard C."],["dc.contributor.author","Renner, André"],["dc.contributor.author","Gummert, Jan"],["dc.contributor.author","Belardinelli, Luiz"],["dc.contributor.author","Frey, Norbert"],["dc.contributor.author","Maier, Lars S."],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Sossalla, Samuel"],["dc.date.accessioned","2017-09-07T11:44:54Z"],["dc.date.available","2017-09-07T11:44:54Z"],["dc.date.issued","2016"],["dc.description.abstract","Introduction: Pharmacological rhythm control of atrial fibrillation (AF) in patients with structural heart disease is limited. Ranolazine in combination with low dose dronedarone remarkably reduced AF-burden in the phase II HARMONY trial. We thus aimed to investigate the possible mechanisms underlying these results. Methods and results: Patch clamp experiments revealed that ranolazine (5 mu M), low-dose dronedarone (0.3 mu M), and the combination significantly prolonged action potential duration (APD(90)) in atrial myocytes from patients in sinus rhythm (prolongation by 23.5 +/- 0.1%, 31.7 +/- 0.1% and 25.6 +/- 0.1% respectively). Most importantly, in atrial myocytes from patients with AF ranolazine alone, but more the combination with dronedarone, also prolonged the typically abbreviated APD(90) (prolongation by 21.6 +/- 0.1% and 31.9 +/- 0.1% respectively). It was clearly observed that neither ranolazine, dronedarone nor the combination significantly changed the APD or contractility and twitch force in ventricular myocytes or trabeculae from patients with heart failure (HF). Interestingly ranolazine, and more so the combination, but not dronedarone alone, caused hyperpolarization of the resting membrane potential in cardiomyocytes from AF. As measured by confocal microscopy (Fluo-3), ranolazine, dronedarone and the combination significantly suppressed diastolic sarcoplasmic reticulum (SR) Ca2+ leak in myocytes from sinus rhythm (reduction by ranolazine: 89.0 +/- 30.7%, dronedarone: 75.6 +/- 27.4% and combination: 78.0 +/- 272%), in myocytes from AF (reduction by ranolazine: 67.6 +/- 33.7%, dronedarone: 86.5 +/- 31.7% and combination: 81.0 +/- 33.3%), as well as in myocytes from HF (reduction by ranolazine: 64.8 +/- 26.5% and dronedarone: 65.9 +/- 29.3%). Conclusions: Electrophysiological measurements during exposure to ranolazine alone or in combination with low-dose dronedarone showed APD prolongation, cellular hyperpolarization and reduced SR Ca2+ leak in human atrial myocytes. The combined inhibitory effects on various currents, in particular Na+ and K+ currents, may explain the anti-AF effects observed in the HARMONY trial. Therefore, the combination of ranolazine and dronedarone, but also ranolazine alone, may be promising new treatment options for AF, especially in patients with HF, and merit further clinical investigation. (C) 2016 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.yjmcc.2016.03.012"],["dc.identifier.gro","3141690"],["dc.identifier.isi","000376839000011"],["dc.identifier.pmid","27056421"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/8938"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/146"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | D01: Erholung aus der Herzinsuffizienz – Einfluss von Fibrose und Transkriptionssignatur"],["dc.relation.eissn","1095-8584"],["dc.relation.issn","0022-2828"],["dc.relation.workinggroup","RG Hasenfuß (Transition zur Herzinsuffizienz)"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.relation.workinggroup","RG Voigt (Molecular Pharmacology)"],["dc.title","The combined effects of ranolazine and dronedarone on human atrial and ventricular electrophysiology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","719"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Artificial Organs"],["dc.bibliographiccitation.lastpage","726"],["dc.bibliographiccitation.volume","40"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Kleinwächter, Astrid"],["dc.contributor.author","Herting, Jonas"],["dc.contributor.author","Eiringhaus, Jörg"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Renner, André"],["dc.contributor.author","Gummert, Jan"],["dc.contributor.author","Haverich, Axel"],["dc.contributor.author","Schmitto, Jan D."],["dc.contributor.author","Sossalla, Samuel"],["dc.date.accessioned","2018-11-07T10:10:45Z"],["dc.date.available","2018-11-07T10:10:45Z"],["dc.date.issued","2016"],["dc.description.abstract","In heart failure, left ventricular assist device (LVAD) implantation is performed to ensure sufficient cardiac output. Whereas some patients are subsequently weaned from LVAD support, other patients still need heart transplantation. To elucidate underlying mechanisms, we assessed the arrhythmogenic SR-Ca2+ leak at the time of LVAD implantation (HF-Im) and heart transplantation (HF-Tx) and evaluated the effects of CaMKII-inhibition. Human left-ventricular cardiomyocytes were isolated, paced at 1Hz for 10 beats to ensure SR-Ca2+ loading and scanned for diastolic Ca2+ sparks (confocal microscopy). In HF-Im, the high diastolic spark frequency (CaSpF) of 0.76 +/- 0.12x100m(-1)xs(-1) could be reduced to 0.48 +/- 0.10x100m(-1)xs(-1) by CaMKII inhibition (AIP, 1M). The amplitude of Ca2+ sparks, width, and length was not significantly altered. In sum, CaMKII inhibition yielded a clear tendency toward a reduction of the SR-Ca2+ leak (n cells/patients=76/6 vs. 108/6, P=0.08). In HF-Tx, we detected an even higher CaSpF of 1.00 +/- 0.10 100m(-1)xs(-1) and a higher SR-Ca2+ leak compared with HF-Im (increase by 81 +/- 33%, n cells/patients=156/7 vs. 130/7, P<0.05), which fits to the further decreased LV function. Here, CaMKII inhibition likewise reduced CaSpF (0.35 +/- 0.09 100m(-1)xs(-1,)P=0.06) and significantly reduced spark duration (n sparks/patients=58/3 vs. 159/3, P<0.05). Conclusively, the SR-Ca2+ leak was reduced by 69 +/- 12% in HF-Tx upon CaMKII inhibition (n cells/patients=53/3 vs. 91/3, P<0.05). These data show that the SR-Ca2+ leak correlates with the development of LV function after LVAD implantation and may represent an important pathomechanism. The fact that CaMKII inhibition reduces the SR-Ca2+ leak in HF-Tx suggests that CaMKII inhibition may be a promising option to beneficially influence clinical course after LVAD implantation."],["dc.identifier.doi","10.1111/aor.12677"],["dc.identifier.isi","000383514300005"],["dc.identifier.pmid","26816346"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/39920"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/136"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation.issn","1525-1594"],["dc.relation.issn","0160-564X"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.title","Inhibition of CaMKII Attenuates Progressing Disruption of Ca2+ Homeostasis Upon Left Ventricular Assist Device Implantation in Human Heart Failure"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","184"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Cardiovascular Research"],["dc.bibliographiccitation.lastpage","196"],["dc.bibliographiccitation.volume","107"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Herting, Jonas"],["dc.contributor.author","Mason, Fleur E."],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Watanabe, Saera"],["dc.contributor.author","Nikolaev, Viacheslav O."],["dc.contributor.author","Sprenger, Julia U."],["dc.contributor.author","Fan, Peidong"],["dc.contributor.author","Yao, Lina"],["dc.contributor.author","Popov, Aron-Frederik"],["dc.contributor.author","Danner, Bernhard C."],["dc.contributor.author","Schoendube, Friedrich"],["dc.contributor.author","Belardinelli, Luiz"],["dc.contributor.author","Hasenfuss, Gerd"],["dc.contributor.author","Maier, Lars S."],["dc.contributor.author","Sossalla, Samuel"],["dc.date.accessioned","2017-09-07T11:43:42Z"],["dc.date.available","2017-09-07T11:43:42Z"],["dc.date.issued","2015"],["dc.description.abstract","Aims Enhanced cardiac late Na current (late I-Na) and increased sarcoplasmic reticulum (SR)-Ca2+-leak are both highly arrhythmogenic. This study seeks to identify signalling pathways interconnecting late I-Na and SR-Ca2+-leak in atrial cardiomyocytes (CMs). Methods and results In murine atrial CMs, SR-Ca2+-leak was increased by the late I-Na enhancer Anemonia sulcata toxin II (ATX-II). An inhibition of Ca2+/calmodulin-dependent protein kinase II (Autocamide-2-related inhibitory peptide), protein kinase A (H89), or late I-Na (Ranolazine or Tetrodotoxin) all prevented ATX-II-dependent SR-Ca2+-leak. The SR-Ca2+-leak induction by ATX-II was not detected when either the Na+/Ca2+ exchanger was inhibited (KBR) or in CaMKIIdc-knockout mice. FRET measurements revealed increased cAMP levels upon ATX-II stimulation, which could be prevented by inhibition of adenylyl cyclases (ACs) 5 and 6 (NKY 80) but not by inhibition of phosphodiesterases (IBMX), suggesting PKA activation via an AC-dependent increase of cAMP levels. Western blots showed late I-Na-dependent hyperphosphorylation of CaMKII as well as PKA target sites at ryanodine receptor type-2 (-S2814 and -S2808) and phospholamban (-Thr17, -S16). Enhancement of late I-Na did not alter Ca2+-transient amplitude or SR-Ca2+-load. However, upon late I-Na activation and simultaneous CaMKII inhibition, Ca2+-transient amplitude and SR-Ca2+-load were increased, whereas PKA inhibition reduced Ca2+-transient amplitude and load and additionally slowed Ca2+ elimination. In atrial CMs from patients with atrial fibrillation, inhibition of late I-Na, CaMKII, or PKA reduced the SR-Ca2+-leak. Conclusion Late I-Na exerts distinct effects on Ca2+ homeostasis in atrial myocardium through activation of CaMKII and PKA. Inhibition of late I-Na represents a potential approach to attenuate CaMKII activation and decreases SR-Ca2+-leak in atrial rhythm disorders. The interconnection with the cAMP/PKA system further increases the antiarrhythmic potential of late I-Na inhibition."],["dc.identifier.doi","10.1093/cvr/cvv153"],["dc.identifier.gro","3141867"],["dc.identifier.isi","000359088800021"],["dc.identifier.pmid","25990311"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/1956"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/104"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation.eissn","1755-3245"],["dc.relation.issn","0008-6363"],["dc.relation.issn","1755-3245"],["dc.relation.workinggroup","RG Hasenfuß (Transition zur Herzinsuffizienz)"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.relation.workinggroup","RG Nikolaev (Cardiovascular Research Center)"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.title","Late INa increases diastolic SR-Ca2+-leak in atrial myocardium by activating PKA and CaMKII"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","European Journal of Heart Failure"],["dc.bibliographiccitation.volume","18"],["dc.contributor.author","Herting, J. Jonas"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Eiringhaus, Joerg"],["dc.contributor.author","Pabel, Stefanie Corinna"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Sossalla, Samuel T."],["dc.contributor.author","Fischer, Thomas H."],["dc.date.accessioned","2018-11-07T10:14:46Z"],["dc.date.available","2018-11-07T10:14:46Z"],["dc.date.issued","2016"],["dc.format.extent","515"],["dc.identifier.isi","000377107504258"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40681"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Wiley-blackwell"],["dc.publisher.place","Hoboken"],["dc.relation.issn","1879-0844"],["dc.relation.issn","1388-9842"],["dc.title","Effects of atrial fibrillation on ventricular calcium cycling in human myocardium"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","94"],["dc.bibliographiccitation.journal","Journal of Molecular and Cellular Cardiology"],["dc.bibliographiccitation.lastpage","105"],["dc.bibliographiccitation.volume","76"],["dc.contributor.author","Sag, Can M."],["dc.contributor.author","Mallwitz, Anika"],["dc.contributor.author","Wagner, Stefan"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Schotola, Hanna"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Ungeheuer, Nele"],["dc.contributor.author","Herting, Jonas"],["dc.contributor.author","Shah, Ajay M."],["dc.contributor.author","Maier, Lars S."],["dc.contributor.author","Sossalla, Samuel"],["dc.contributor.author","Unsöld, Bernhard"],["dc.date.accessioned","2018-11-07T09:33:10Z"],["dc.date.available","2018-11-07T09:33:10Z"],["dc.date.issued","2014"],["dc.description.abstract","Objective: Enhanced late Na current (late I-Na) induces Na-dependent Ca overload as well as proarrhythmogenic events on the cellular level that include spatio-temporally uncoordinated diastolic Ca release from the sarcoplasmic reticulum (SR) and delayed afterdepolarizations (DADs). The Ca/calmodulin-dependent protein kinase II (CaMKII) gets activated upon increases in [Ca](1) and mediates diastolic SR Ca leak as well as DADs. Rationale: We hypothesized that increased late I-Na (in disease-comparable ranges) exerts proarrhythmogenic events in isolated ventricular mouse myocytes in a manner depending on CaMKII-dependent SR Ca leak. We further tested whether inhibition of disease-related late I-Na may reduce proarrhythmogenic SR Ca leak in myocytes from failing human hearts. Methods: Ventricular myocytes were isolated from healthy wildtype (WT), failing CaMKII delta c transgenic (TG) mouse, and failing human hearts. ATX-II (0.25-10 nmol/L) was used to enhance late I-Na. Spontaneous Ca loss from the SR during diastole (Ca sparks), DADs, non-triggered diastolic Ca transients in myocytes and premature beats of isometrically twitching papillary muscles were used as readouts for proarrhythmogenic events. CaMKII autophosphorylation was assessed by immunoblots. Late I-Na was inhibited using ranolazine (Ran, 10 mu mol/L) or 'FIX (2 mu mol/L), and CaMKII by KN-93 (1 mu mol/L) or ALP (1 mu mol/L). Results: In WTmyocytes, sub-nanomolar ATX-II exposure (0.5 nmol/L) enhanced late I-Na by -60%, which resulted in increased diastolic SR Ca loss despite unaltered SR Ca content. In parallel, DADs and non-triggered diastolic Ca transients arose. Inhibition of enhanced late I-Na by RAN or TTX significantly attenuated diastolic SR Ca loss and suppressed DADs as well as mechanical altemans in mouse and diastolic SR Ca loss in failing human myocytes. ATX-II caused Ca-dependent CaMKII-activation without changes in protein expression, which was reversible by Ran or AIP. Conversely, CaMKII-inhibition decreased diastolic SR Ca loss, DADs and non-triggered diastolic Ca transients despite ATX-II-exposure. Finally, failing mouse myocytes with increased CaMKII activity (TG CaMKII delta c) showed an even aggravated diastolic SR Ca loss that was associated with an increased frequency of non-triggered diastolic Ca transients upon enhanced late I-Na. Conclusions: Increased late 'Na (in disease-comparable ranges) induces proarrhythmogenic events during diastole in healthy and failing mouse myocytes, which are mediated via CaMKII-dependent SR Ca loss. Inhibition of late I-Na not only attenuated these cellular arrhythmias in mouse myocytes but also in failing human myocytes indicating some antiarrhythmic potential for an inhibition of the elevated late I-Na/CaMKII signaling pathway in this setting. (c) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.yjmcc.2014.08.016"],["dc.identifier.isi","000344202800011"],["dc.identifier.pmid","25173923"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31907"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/50"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.notes.submitter","Najko"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation.issn","1095-8584"],["dc.relation.issn","0022-2828"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.title","Enhanced late INa induces proarrhythmogenic SR Ca leak in a CaMKII-dependent manner"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","European Heart Journal"],["dc.bibliographiccitation.volume","36"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Dybkova, Nataliya"],["dc.contributor.author","Ahmad, Shakil"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Sossalla, Samuel T."],["dc.date.accessioned","2018-11-07T09:53:36Z"],["dc.date.available","2018-11-07T09:53:36Z"],["dc.date.issued","2015"],["dc.format.extent","1038"],["dc.identifier.isi","000361205107065"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/36360"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Oxford Univ Press"],["dc.publisher.place","Oxford"],["dc.relation.eventlocation","London, ENGLAND"],["dc.relation.issn","1522-9645"],["dc.relation.issn","0195-668X"],["dc.title","Evidence and role of the neuronal sodium channel Nav1.8 in the human failing heart"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1728"],["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Cardiovascular Research"],["dc.bibliographiccitation.lastpage","1737"],["dc.bibliographiccitation.volume","114"],["dc.contributor.author","Dybkova, Nataliya"],["dc.contributor.author","Ahmad, Shakil"],["dc.contributor.author","Pabel, Steffen"],["dc.contributor.author","Tirilomis, Petros"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Fischer, Thomas H"],["dc.contributor.author","Bengel, Philipp"],["dc.contributor.author","Tirilomis, Theodoros"],["dc.contributor.author","Ljubojevic, Senka"],["dc.contributor.author","Renner, André"],["dc.contributor.author","Gummert, Jan"],["dc.contributor.author","Ellenberger, David"],["dc.contributor.author","Wagner, Stefan"],["dc.contributor.author","Frey, Norbert"],["dc.contributor.author","Maier, Lars S"],["dc.contributor.author","Streckfuss-Bömeke, Katrin"],["dc.contributor.author","Hasenfuss, Gerd"],["dc.contributor.author","Sossalla, Samuel"],["dc.date.accessioned","2020-12-10T18:18:48Z"],["dc.date.available","2020-12-10T18:18:48Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1093/cvr/cvy152"],["dc.identifier.pmid","29931291"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/75097"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/294"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A11: Absolute Arrhythmie bei Vorhofflimmern - ein neuer Mechanismus, der zu einer Störung von Ca2+-Homöostase und elektrischer Stabilität in der Transition zur Herzinsuffizienz führt"],["dc.relation","SFB 1002 | D01: Erholung aus der Herzinsuffizienz – Einfluss von Fibrose und Transkriptionssignatur"],["dc.relation.workinggroup","RG Hasenfuß (Transition zur Herzinsuffizienz)"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.title","Differential regulation of sodium channels as a novel proarrhythmic mechanism in the human failing heart"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","111"],["dc.bibliographiccitation.journal","Journal of Molecular and Cellular Cardiology"],["dc.bibliographiccitation.lastpage","122"],["dc.bibliographiccitation.volume","61"],["dc.contributor.author","Toischer, Karl"],["dc.contributor.author","Hartmann, Nico"],["dc.contributor.author","Wagner, Stefan"],["dc.contributor.author","Fischer, Thomas H."],["dc.contributor.author","Herting, Jonas"],["dc.contributor.author","Danner, Bernhard C."],["dc.contributor.author","Sag, Can M."],["dc.contributor.author","Hund, Thomas J."],["dc.contributor.author","Mohler, Peter J."],["dc.contributor.author","Belardinelli, Luiz"],["dc.contributor.author","Hasenfuss, Gerd"],["dc.contributor.author","Maier, Lars S."],["dc.contributor.author","Sossalla, Samuel"],["dc.date.accessioned","2017-09-07T11:47:38Z"],["dc.date.available","2017-09-07T11:47:38Z"],["dc.date.issued","2013"],["dc.description.abstract","The aim of the study was to determine the characteristics of the late Na current (I-NaL) and its arrhythmogenic potential in the progression of pressure-induced heart disease. Transverse aortic constriction (TAC) was used to induce pressure overload in mice. After one week the hearts developed isolated hypertrophy with preserved systolic contractility. In patch-clamp experiments both, I-NaL and the action potential duration (APD(90)) were unchanged. In contrast, after five weeks animals developed heart failure with prolonged APDs and slowed I-NaL, decay time which could be normalized by addition of the I-NaL inhibitor ranolazine (Ran) or by the Ca/calmodulin-dependent protein kinase II (CaMKII) inhibitor AIP. Accordingly the APD(90) could be significantly abbreviated by Ran, tetrodotoxin and the CaMKII inhibitor AIP. Isoproterenol increased the number of delayed afterdepolarizations (DAD) in myocytes from failing but not sham hearts. Application of either Ran or AIP prevented the occurrence of DADs. Moreover, the incidence of triggered activity was significantly increased in TAC myocytes and was largely prevented by Ran and AIP. Western blot analyses indicate that increased CaMKII activity and a hyperphosphorylation of the Nav1.5 at the CaMKII phosphorylation site (Ser571) paralleled our functional observations five weeks after TAC surgery. In pressure overload-induced heart failure a CaMKII-dependent augmentation of I-NaL plays a crucial role in the AP prolongation and generation of cellular arrhythmogenic triggers, which cannot be found in early and still compensated hypertrophy. Inhibition of I-NaL and CaMKII exerts potent antiarrhythmic effects and might therefore be of potential therapeutic interest. This article is part of a Special Issue entitled \"Na+ Regulation in Cardiac Myocytes\". (C) 2013 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.yjmcc.2013.03.021"],["dc.identifier.gro","3142319"],["dc.identifier.isi","000322286600015"],["dc.identifier.pmid","23570977"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6964"],["dc.identifier.url","https://sfb1002.med.uni-goettingen.de/production/literature/publications/65"],["dc.language.iso","en"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation","SFB 1002: Modulatorische Einheiten bei Herzinsuffizienz"],["dc.relation","SFB 1002 | A03: Bedeutung CaMKII-abhängiger Mechanismen für die Arrhythmogenese bei Herzinsuffizienz"],["dc.relation","SFB 1002 | D01: Erholung aus der Herzinsuffizienz – Einfluss von Fibrose und Transkriptionssignatur"],["dc.relation.eissn","1095-8584"],["dc.relation.issn","0022-2828"],["dc.relation.workinggroup","RG Hasenfuß (Transition zur Herzinsuffizienz)"],["dc.relation.workinggroup","RG L. Maier (Experimentelle Kardiologie)"],["dc.relation.workinggroup","RG Sossalla (Kardiovaskuläre experimentelle Elektrophysiologie und Bildgebung)"],["dc.relation.workinggroup","RG T. Fischer"],["dc.relation.workinggroup","RG Toischer (Kardiales Remodeling)"],["dc.title","Role of late sodium current as a potential arrhythmogenic mechanism in the progression of pressure-induced heart disease"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dspace.entity.type","Publication"]]