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Stem cells 'could repair damaged cornea'

Washington, Tue, 06 Mar 2012 ANI

Washington, Mar 6 (ANI): Researchers have for the first time successfully cultivated stem cells on human corneas, which may eliminate the need for donators in the long run.

 

The damaged and cloudy cornea that is turning the patient blind is replaced with a healthy, transparent one.

 

But the procedure requires a donated cornea, and there is a severe shortage of donated material. This is particularly the case throughout the world, where religious or political views often hinder the use of donated material.

 

Scientists at the Sahlgrenska Academy, University of Gothenburg, have taken the first step towards replacing donated corneas with corneas cultivated from stem cells.

 

Scientists Charles Hanson and Ulf Stenevi have used defective corneas obtained from the ophthalmology clinic at Sahlgrenska University Hospital in Molndal.

 

Their study shows how human stem cells can be caused to develop into what are known as 'epithelial cells'after 16 days' culture in the laboratory and a further 6 days' culture on a cornea. It is the epithelial cells that maintain the transparency of the cornea.

 

"Similar experiments have been carried out on animals, but this is the first time that stem cells have been grown on damaged human corneas. It means that we have taken the first step towards being able to use stem cells to treat damaged corneas," said Charles Hanson.

 

"If we can establish a routine method for this, the availability of material for patients who need a new cornea will be essentially unlimited. Both the surgical procedures and the aftercare will also become much more simple," said Ulf Stenevi.

 

The study has been published in the journal Acta Ophthalmologica. (ANI)

 


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