A new way to measure metabolism in the brain

MRI scan

Dr Ferdia Gallagher
University of Cambridge

About the project

Dr Gallagher is testing a new magnetic resonance imaging (MRI) technique – called hyperpolarized carbon-13 MRI – to measure changes in the brains of people with MS.

MRI is a common technique used to measure MS activity in the brain, but it can’t pick up on changes in metabolism. There’s evidence to suggest that sugar-like molecules are broken down (or metabolised) differently by areas of the brain inside and outside of an MS lesion. Changes in metabolism tend to happen much earlier on in MS than the structural changes that can be seen using standard MRI so could be useful as a marker of MS activity.

This project will be testing hyperpolarized carbon-13 MRI, to see if metabolism is different in MS lesions compared to other parts of the brain.

The team will inject a sugar-like molecule called pyruvate into people with MS. They’ll then be able to see where the pyruvate sits in the brain and how it’s metabolised into other molecules. One of the break-down products is called lactic acid, and the team believe that this lactic acid will highlight areas of the brain with MS activity.

This technique could provide a very sensitive way to detect cellular changes in MS, and could identify them before they’re detectable with conventional imaging techniques.

How will it help people with MS?

This new technique could be used to help us understand more about the underlying biology of MS and how to develop new treatments. Faster, more sensitive imaging techniques could help to speed up diagnosis and help to quickly determine which treatments are most effective for each person.

This early-stage study is to determine how the technique might be beneficial for people with MS in the future.

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Innovative new techniques are crucial to develop our understanding of MS and speed up the development of treatments.

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Photo: Reigh LeBlanc on Flickr

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