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Aberdeen University scientists make club foot breakthrough

Old Aberdeen campus, off St Machar Drive.
Old Aberdeen campus, off St Machar Drive.

A gene which could play a role in causing the most severe cases of club foot has been identified by scientists at Aberdeen University.

Club foot is a lower leg abnormality, where babies are born with the foot in a twisted position, facing inwards and upwards rather than flat to the floor.

It is quite common, affecting about 1 baby in every 1,000 born in the UK. Of those 1,000 about half have the condition in both feet.

Experts believe the condition is a neuro-muscular problem – a result of muscle weakness in the legs during development. However it is difficult to pinpoint the causes because there are so many different things that can cause muscle weakness.

The Aberdeen team believe they may have identified a gene in a mouse model which is linked to the more serious cases of club foot in humans.

The gene (Limk1) is required for normal nerve growth and have shown to be part of a pathway of genes, one of which is already known to be linked to club foot in mice.

Professor Martin Collinson, a geneticist from the university, and leader of the study said: “This is, hopefully, another piece in the puzzle of what causes club foot in humans.

“Our hypothesis is that probably for most human club foot patients, it’s not just one gene that goes wrong, there are probably predisposed mutations in several genes in these pathways and they add up to eventually cause muscle weakness.

“In theory if we could screen children for these genes before treatment starts, then they could avoid years of unnecessary interventions.”