All Outputs (7)

Geometrically-derived action potential markers for model development: a principled approach? (2024)
Preprint / Working Paper
Clerx, M., & R Mirams, G. Geometrically-derived action potential markers for model development: a principled approach?

We explore whether action potential biomarkers can be rederived as functions of a linearisation of the action potential.

Optimising experimental designs for model selection of ion channel drug binding mechanisms (2024)
Preprint / Working Paper
Patten-Elliott, F., Lei, C. L., Preston, S. P., Wilkinson, R. D., & Mirams, G. R. Optimising experimental designs for model selection of ion channel drug binding mechanisms

The rapid delayed rectifier current carried by the human Ether-à-go-go-Related Gene (hERG) channel is susceptible to drug-induced reduction which can lead to an increased risk of cardiac arrhythmia. Establishing the mechanism by which a specific drug... Read More about Optimising experimental designs for model selection of ion channel drug binding mechanisms.

Evaluating the predictive accuracy of ion channel models using data from multiple experimental designs (2024)
Preprint / Working Paper
Shuttleworth, J. G., Lei, C. L., Windley, M. J., Hill, A. P., Preston, S. P., & Mirams, G. R. Evaluating the predictive accuracy of ion channel models using data from multiple experimental designs

Mathematical models are increasingly being relied upon to provide quantitatively accurate predictions of cardiac electrophysiology. Many such models concern the behaviour of particular subcellular components (namely, ion channels) which, together, al... Read More about Evaluating the predictive accuracy of ion channel models using data from multiple experimental designs.

A range of voltage-clamp protocol designs for rapid capture of hERG kinetics (2024)
Preprint / Working Paper
Lei, C. L., Whittaker, D. G., Windley, M. J., Perry, M. D., Hill, A. P., & Mirams, G. R. A range of voltage-clamp protocol designs for rapid capture of hERG kinetics

We provide details of a series of short voltage-clamp protocols designed for gathering a large amount of information on hERG (Kv11.1) ion channel gating. The protocols have a limited number of steps and consist only of steps and ramps, making them ea... Read More about A range of voltage-clamp protocol designs for rapid capture of hERG kinetics.

Resolving artefacts in voltage-clamp experiments with computational modelling: an application to fast sodium current recordings (2024)
Preprint / Working Paper
Lei, C. L., Clark, A. P., Clerx, M., Wei, S., Bloothooft, M., de Boer, T. P., Christini, D. J., Krogh-Madsen, T., & Mirams, G. R. Resolving artefacts in voltage-clamp experiments with computational modelling: an application to fast sodium current recordings

Cellular electrophysiology is the foundation of many fields, from basic science in neurology, cardiology, oncology to safety critical applications for drug safety testing, clinical phenotyping, etc. Patch-clamp voltage clamp is the gold standard tech... Read More about Resolving artefacts in voltage-clamp experiments with computational modelling: an application to fast sodium current recordings.

An experimental investigation of rundown of the L-type calcium current [version 1; peer review: awaiting peer review] (2024)
Preprint / Working Paper
Agrawal, A., Clerx, M., Wang, K., Gissinger, E., J. Gavaghan, D., Polonchuk, L., & R. Mirams, G. An experimental investigation of rundown of the L-type calcium current [version 1; peer review: awaiting peer review]

Background

L-type calcium channels (LCCs) are multi-protein macro-molecular ion channel complexes that are involved in several critical functions in cardiac, skeletal, neuronal, smooth muscle, and endocrine cells. Like other ion channels, LCCs can... Read More about An experimental investigation of rundown of the L-type calcium current [version 1; peer review: awaiting peer review].

Variability in reported midpoints of (in)activation of cardiac INa (2024)
Preprint / Working Paper
Clerx, M., G.A. Volders, P., & R. Mirams, G. Variability in reported midpoints of (in)activation of cardiac INa

Electrically active cells like cardiomyocytes show variability in their size, shape, and electrical activity. But should we expect variability in the properties of their ionic currents? In this brief review we gather and visualise measurements of two... Read More about Variability in reported midpoints of (in)activation of cardiac INa.