Tag Archives: parameter fitting

Job Available: Statistical inference for mechanistic models

N.B. Applications for this position are now closed. We are offering a 3 year position as a research fellow in statistical inference for mechanistic models. This is offered at either Postdoc or Senior postdoc level (equivalent grade to Assistant Professor) … Continue reading

Posted in Action Potential Models, Drug action, Experimental Design, Ion Channel Models, Model Development, Numerics, Stats and Inference | Tagged , , , , , , , , , , , , | Leave a comment

Three potassium channel modelling papers

Just a quick note to tell you about our latest batch of papers in the “Heart By Numbers” special issue of Biophysical Journal which arose from a meeting in Berlin last year. They are all about IKr, the rapid-delayed rectifying … Continue reading

Posted in Experimental Design, Future developments, Ion Channel Models, Model Development, Numerics, Stats and Inference | Tagged , , , , , , , , , , , | 2 Comments

Short and rich voltage-clamp protocols

This is a quick post to tell you all about Kylie’s new paper on sinusoidal-wave based voltage clamp protocols that has been published in the Journal of Physiology, and there’s an associated commentary from Ele Grandi. In the paper, some … Continue reading

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Uncertainty quantification for ion channel screening and risk prediction

This post accompanies our new paper in Wellcome Open Research. Regular readers of this blog will know that I worry about uncertainty in the numbers we are using to model drug action on electrophysiology quite a lot – see our … Continue reading

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Ablation, scars and insights from parameter lumping

This is quite a long post elaborating on a bit of work I’ve been doing with Greg Morley and his group, which was published in Scientific Reports. I hope it provides an accessible introduction to a fairly complicated set of experiments … Continue reading

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Should I work with IC50s or pIC50s?

When you are expressing how much a drug inhibits something, it’s common to fit a Hill curve through a graph of concentration against % inhibition as shown here: In our case this is often ‘% inhibition’ for a given ionic … Continue reading

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Model Complexity

We’ve been thinking about how to parameterise/train/calibrate models, and also how to select an appropriate model to begin with. This raises all sorts of interesting questions on the details, but this post is just about setting out a big overview … Continue reading

Posted in Action Potential Models, Ion Channel Models, Model Development, Stats and Inference | Tagged , , , , , , , , | 3 Comments