Peter Molenaar

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

The low-affinity site of the β1-adrenoceptor and its relevance to cardiovascular pharmacology (2008)

Kaumann, Alberto J., Molenaar, Peter

β-Adrenoceptor blocking agents (β-blockers) that at low concentrations antagonize cardiostimulant effects of catecholamines, but at high concentrations also cause cardiostimulation, have been...

Carvedilol blocks beta(2)- more than beta(1)-adrenoceptors in human heart (2006)

Molenaar, Peter, Christ, Torsten, Ravens, Ursula, Kaumann, Alberto

Objective: To understand the basis of the effectiveness of carvedilol in heart failure by determining its specific properties at human heart and beta(2)-adrenoceptors. Methods: The positive inotropic...

Cardiac implications for the use of beta(2)-adrenoceptor agonists for the management of muscle wasting (2006)

Molenaar, Peter, Chen, Lu, Parsonage, William A.

There are proposals for the implementation of beta(2)-adrenoceptor agonists for the management of muscle wasting diseases. The idea has been initiated by studies in animal models which show that...

Carvedilol blocks beta(2)- more than beta(1)-adrenoceptors in human heart (2006)

Molenaar, Peter, Christ, Torsten, Ravens, Ursula, Kaumann, Alberto

Objective: To understand the basis of the effectiveness of carvedilol in heart failure by determining its specific properties at human heart and beta(2)-adrenoceptors. Methods: The positive inotropic...

Cardiac implications for the use of beta(2)-adrenoceptor agonists for the management of muscle wasting (2006)

Molenaar, Peter, Chen, Lu, Parsonage, William A.

There are proposals for the implementation of beta(2)-adrenoceptor agonists for the management of muscle wasting diseases. The idea has been initiated by studies in animal models which show that...

Carvedilol blocks {beta}2- more than {beta}1-adrenoceptors in human heart (2006)

Molenaar, Peter, Christ, Torsten, Ravens, Ursula, Kaumann, Alberto

Objective: To understand the basis of the effectiveness of carvedilol in heart failure by determining its specific properties at human heart β1- and β2-adrenoceptors. Methods: The positive...

Investigation of signaling pathways that mediate the inotropic effect of urotensin-II in human heart (2004)

Russell, Fraser D, Molenaar, Peter

Objective: This study investigated signaling pathways that may contribute to the potent positive inotropic effect of human urotensin-II (hU-II) in human isolated right atrial trabeculae obtained from...

(-)-CGP 12177 increases contractile force and hastens relaxation of human myocardial preparations through a propranolol-resistant state of the beta1-adrenoceptor (2003)

Sarsero, Doreen, Russell, Fraser D., Lynham, James A., Rabnott, Glenn, Yang, Ian, Fong, Kwun M., ...

Two forms of the activated beta(1)-adrenoceptor exist, one that is stabilized by (-)-noradrenaline and is sensitive to blockade by (-)-propranolol and another which is stabilized by partial agonists...

(-)-CGP 12177 increases contractile force and hastens relaxation of human myocardial preparations through a propranolol-resistant state of the beta1-adrenoceptor (2003)

Sarsero, Doreen, Russell, Fraser D., Lynham, James A., Rabnott, Glenn, Yang, Ian, Fong, Kwun M., ...

Two forms of the activated beta(1)-adrenoceptor exist, one that is stabilized by (-)-noradrenaline and is sensitive to blockade by (-)-propranolol and another which is stabilized by partial agonists...

Overexpression of Rapsyn in Rat Muscle Increases Acetylcholine Receptor Levels in Chronic Experimental Autoimmune Myasthenia Gravis

Martínez-Martínez, Pilar, Losen, Mario, Duimel, Hans, Frederik, Peter, Spaans, Frank, Molenaar, Peter, ...

The primary autoantigen in myasthenia gravis, the acetylcholine receptor (AChR), is clustered and anchored in the postsynaptic membrane of the neuromuscular junction by rapsyn. Previously, we found...

Effects of (−)-RO363 at human atrial β-adrenoceptor subtypes, the human cloned β3-adrenoceptor and rodent intestinal β3-adrenoceptors

Molenaar, Peter, Sarsero, Doreen, Arch, Jonathan R S, Kelly, John, Henson, Sian M, Kaumann, Alberto J

Chronic treatment of patients with β-blockers causes atrial inotropic hyperresponsiveness through β2-adrenoceptors, 5-HT4 receptors and H2-receptors but apparently not through β1-adrenoceptors...

Validity of (−)-[3H]-CGP 12177A as a radioligand for the ‘putative β4-adrenoceptor' in rat atrium

Sarsero, Doreen, Molenaar, Peter, Kaumann, Alberto J

We have recently suggested the existence in the heart of a ‘putative β4-adrenoceptor' based on the cardiostimulant effects of non-conventional partial agonists, compounds that cause...

Human vascular to cardiac tissue selectivity of L- and T-type calcium channel antagonists

Sarsero, Doreen, Fujiwara, Toshimasa, Molenaar, Peter, Angus, James A

Voltage-operated calcium channel (VOCC) antagonists are effective antihypertensive and antianginal agents but they also depress myocardial contractility.We compared four L-type calcium channel...

Putative β4-adrenoceptors in rat ventricle mediate increases in contractile force and cell Ca2+: comparison with atrial receptors and relationship to (−)-[3H]-CGP 12177 binding

Sarsero, Doreen, Molenaar, Peter, Kaumann, Alberto J, Freestone, Nicholas S

We identified putative β4-adrenoceptors by radioligand binding, measured increases in ventricular contractile force by (−)-CGP 12177 and (±)-cyanopindolol and demonstrated increased Ca2+...

Contribution of β-adrenoceptor subtypes to relaxation of colon and oesophagus and pacemaker activity of ureter in wildtype and β3-adrenoceptor knockout mice

Oostendorp, Jaap, Preitner, Frédéric, Moffatt, James, Jimenez, Maria, Giacobino, Jean Paul, Molenaar, Peter, ...

The smooth muscle relaxant responses to the mixed β3-, putative β4-adrenoceptor agonist, (−)-CGP 12177 in rat colon are partially resistant to blockade by the β3-adrenoceptor antagonist SR59230A...

Cardiostimulant effects of urotensin-II in human heart in vitro

Russell, Fraser D, Molenaar, Peter, O'Brien, Donalee M

The effects of the recently identified human peptide urotensin-II (hU-II) were investigated on human cardiac muscle contractility and coronary artery tone. In right atrial trabeculae from non-failing...

Murine ventricular L-type Ca2+ current is enhanced by zinterol via β1-adrenoceptors, and is reduced in TG4 mice overexpressing the human β2-adrenoceptor

Heubach, Jürgen F, Graf, Eva M, Molenaar, Peter, Jäger, Andreas, Schröder, Frank, Herzig, Stefan, ...

The functional coupling of β2-adrenoceptors (β2-ARs) to murine L-type Ca2+ current (ICa(L)) was investigated with two different approaches. The β2-AR signalling cascade was activated either with...

Activation of calcineurin in human failing heart ventricle by endothelin-1, angiotensin II and urotensin II

Li, Joan, Wang, Jianchun, Russell, Fraser D, Molenaar, Peter

The calcineurin (CaN) enzyme–transcriptional pathway is critically involved in hypertrophy of heart muscle in some animal models. Currently there is no information concerning the regulation of CaN...

Cardiac implications for the use of β2-adrenoceptor agonists for the management of muscle wasting

Molenaar, Peter, Chen, Lu, Parsonage, William A

There are proposals for the implementation of β2-adrenoceptor agonists for the management of muscle wasting diseases. The idea has been initiated by studies in animal models which show that...

Comment on fitting MA time series by structural equation models

Peter Molenaar

lagged variables, moving-averages, stationarity, invertibility, polynomial factorization, dynamic factor analysis,

Optimal measurement conditions for spatiotemporal eeg/meg source analysis

Hilde Huizenga, Dirk Heslenfeld, Peter Molenaar

spatiotemporal EEG/MEG source analysis, multiresponse nonlinear regression, optimal design, Fedorov exchange,

Dynamic factor analysis of nonstationary multivariate time series

Peter Molenaar, Jan Gooijer, Bernhard Schmitz

AIC, dynamic factor analysis, Kalman filter, Markovian state-space model, nonstationarity, SBIC,

Rotation in the dynamic factor modeling of multivariate stationary time series

Peter Molenaar, John Nesselroade

dynamic factor model, identifiability, polynomial division, moving-average, rotation criteria,

Silencing rapsyn in vivo decreases acetylcholine receptors and augments sodium channels and secondary postsynaptic membrane folding

Martinez-Martinez, Pilar, Phemambucq, Marko, Steinbusch, Laura, Schaeffer, Laurent, Berrih-Aknin, Sonia, Duimel, Hans, ...

The receptor-associated protein of the synapse (rapsyn) is required for anchoring and stabilizing the nicotinic acetylcholine receptor (AChR) in the postsynaptic membrane of the neuromuscular...

Silencing rapsyn in vivo decreases acetylcholine receptors and augments sodium channels and secondary postsynaptic membrane folding

Martinez-Martinez, Pilar, Phemambucq, Marko, Steinbusch, Laura, Schaeffer, Laurent, Berrih-Aknin, Sonia, Duimel, Hans, ...

The receptor-associated protein of the synapse (rapsyn) is required for anchoring and stabilizing the nicotinic acetylcholine receptor (AChR) in the postsynaptic membrane of the neuromuscular...