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Dive into the research topics where Mjc Houtman is active.

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Featured researches published by Mjc Houtman.


British Journal of Pharmacology | 2012

Comparison of the IKr blockers moxifloxacin, dofetilide and E‐4031 in five screening models of pro‐arrhythmia reveals lack of specificity of isolated cardiomyocytes

Lukas Nalos; Rosanne Varkevisser; Mkb Jonsson; Mjc Houtman; Jet D.M. Beekman; R. van der Nagel; Morten B. Thomsen; Göran Duker; P Sartipy; T.P. de Boer; Maaike Peschar; Martin B. Rook; Tab Van Veen; Mag Van Der Heyden; M A Vos

Drug development requires the testing of new chemical entities for adverse effects. For cardiac safety screening, improved assays are urgently needed. Isolated adult cardiomyocytes (CM) and human embryonic stem cell‐derived cardiomyocytes (hESC‐CM) could be used to identify pro‐arrhythmic compounds. In the present study, five assays were employed to investigate their sensitivity and specificity for evaluating the pro‐arrhythmic properties of IKr blockers, using moxifloxacin (safe compound) and dofetilide or E‐4031 (unsafe compounds).


British Journal of Pharmacology | 2010

Robust anti‐arrhythmic efficacy of verapamil and flunarizine against dofetilide‐induced TdP arrhythmias is based upon a shared and a different mode of action

A Oros; Mjc Houtman; P Neco; Am Gomez; S Rajamani; P Oosterhoff; Nj Attevelt; Jet D.M. Beekman; Mag Van Der Heyden; L. Ver Donck; L Belardinelli; S Richard; Gudrun Antoons; M A Vos

BACKGROUND AND PURPOSE The high predisposition to Torsade de Pointes (TdP) in dogs with chronic AV‐block (CAVB) is well documented. The anti‐arrhythmic efficacy and mode of action of Ca2+ channel antagonists, flunarizine and verapamil against TdP were investigated.


British Journal of Pharmacology | 2013

Structure-activity relationships of pentamidine-affected ion channel trafficking and dofetilide mediated rescue.

Rosanne Varkevisser; Mjc Houtman; Tobias Linder; K. C. G. de Git; H D M Beekman; Richard R. Tidwell; Adriaan P. IJzerman; Anna Stary-Weinzinger; M A Vos; M. A. G. van der Heyden

Drug interference with normal hERG protein trafficking substantially reduces the channel density in the plasma membrane and thereby poses an arrhythmic threat. The chemical substructures important for hERG trafficking inhibition were investigated using pentamidine as a model drug. Furthermore, the relationship between acute ion channel block and correction of trafficking by dofetilide was studied.


Heart Rhythm | 2013

GS967, By Blocking the Late Sodium Current (INaL), Has Strong Action Potential–Stabilizing Properties in Isolated Remodeled Ventricular Canine Cells

M A Vos; Mjc Houtman; Gudrun Antoons; H. Takanari; H D M Beekman; T.P. de Boer; S. Rajemani; Luiz Belardinelli; M. A. G. van der Heyden


Archive | 2009

Torsade de Pointes arrhythmias in the chronic AV-block block dog are not determined by changes in conduction nor dominated by reentrant mechanisms

Mohamed Boulaksil; Jérôme Gm Jungschleger; Gudrun Antoons; Mjc Houtman; T.P. de Boer; R. Wilders; Jet D.M. Beekman; Jos G. Maessen; Ff van der Hulst; T. A. B. van Veen; M. A. G. van der Heyden; H.V.M. van Rijen; J. M. T. de Bakker; M A Vos


Europace | 2018

P803Temporal increased arrhythmogenicity due to dynamic mechano-electrical remodeling following dyssynchronous ventricular activation in a canine model

Iah Ter Horst; Alexandre Bossu; Mjc Houtman; Hdm Beekman; W M Van Everdingen; S Korte; Mathias Meine; T.P. de Boer; M A Vos


Europace | 2017

225Combined application of the IKr blocker dofetilide and the allosteric modulator LUF7244 rescues congenital and acquired Kv11.1 trafficking defects and functional current

Y. Ji; Mjc Houtman; F. Romunde; D. Fransen; Ap. Ijzerman; Lh. Heitman; M A Vos; Mag Van Der Heyden


Europace | 2017

P1077Identification of a PEST domain in the inward rectifier channel KIR2.1 involved in protein stability

M. Qile; Y. Ji; Mjc Houtman; F. Romunde; M. Veldhuis; Bart Kok; M A Vos; Mag Van Der Heyden


Europace | 2017

57PA-6 inhibits gain-of-function KIR2.1 channels associated with short QT syndrome type 3 and congenital atrial fibrillation

Mag Van Der Heyden; Marlieke G. Veldhuis; J. Zandvoort; Mjc Houtman; Karen Duran; G. Van Haaften; Em. Zangerl-Plessl; H. Takanari; Anna Stary-Weinzinger; Yuan Ji


Europace | 2017

P1588Selective blockade of NaV1.8 by A-803467 shortens repolarization in canine ventricular cardiomyocytes and reduces torsade de pointes arrhythmia in the chronic AV block dog model

Alexandre Bossu; Mjc Houtman; Hdm Beekman; Mag Van Der Heyden; M A Vos

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H. Takanari

University of Tokushima

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