The revolutionary ‘contact lens’ loaded with stem cells that restores sight - by helping the eye heal itself naturally
A ‘contact lens’ loaded with stem cells could be a way to naturally repair or retain sight. Scientists hope the biodegradable implant loaded with stem cells that then multiply will allow the body to heal the eye naturally.
Stem cells are the building blocks of tissue growth. They can transform into any other type of cell the body is built from and so should be able to repair everything from the brain to the heart. The scientists at the University of Sheffield who developed the implant now hope the new technique could help millions of people across the world retain or even regain - their sight.
The technology has been designed to treat damage to the cornea, the transparent layer on the front of the eye, which is one of the major causes of blindness in the world. With the new implant, by mimicking structural features of the eye, the researchers have developed a new method for producing very delicate thin membranes to help graft stem cells onto the eye itself.
Using a series of complex techniques, the researchers are able to make a disc of biodegradable material that can be fixed over the cornea. The disc is loaded with stem cells that then multiply, allowing the body to heal the eye naturally. Standard treatments for corneal blindness are corneal transplants or grafting stem cells onto the eye using a donated human membrane as a temporary carrier to deliver these cells to the eye.
But for some patients, the treatment can fail after a few years as the repaired eyes do not retain these stem cells, which are required to carry out repair of the cornea. A key feature of this new disc is that it contains small pockets to house and protect the stem cells, to keep them in the eye and also grouped together.
‘The disc has an outer ring containing pockets into which stem cells taken from the patient’s healthy eye can be placed,’ said Dr Ílida Ortega Asencio, from Sheffield’s Faculty of Engineering.
‘The material across the centre of the disc is thinner than the ring, so it will biodegrade more quickly allowing the stem cells to proliferate across the surface of the eye to repair the cornea.’Without this constant repair, thick white scar tissue forms across the cornea causing partial or complete sight loss. The researchers said another advantage of the disc is that it is biodegradable and made from the same material already used in sutures, so it will not cause a problem in the body.
Laboratory tests have shown that the membranes will support cell growth. As a result, clinical trials are expected to begin shortly in India, as the Sheffield scientists are working in conjunction with researchers at the LV Prasad Eye Institute in Hyderabad.
Commenting on the disc, Dr Frederick Claeyssens, lecturer in biomaterials at the University of Sheffield, said: ‘We also believe that the overall treatment using these discs will not only be better than current treatments, it will be cheaper as well.’
The research is published in the journal Acta Biomaterialia.
Source: Daily Mail
Absolutely brilliant amazing beautifully done and fantastic I loved every single bit of it. You should plan to see it right away because you will be blown away. Seriously every moment I was completely rapt.
GET OUT OF MY DREAMS
AND INTO MY CAR
*beep beep* <3
OH HOLY FUCK
WHAT IS THIS MADNESS
DEEDEE GET OUT OF MY LABORATORY
OH MY GOD YESS
- *Chatting about marriage and divorce rates in Australia*
- Girl in my class: Marriage rates have actually gone down according to google.
- Me: Well let gays get married and that marriage rate will go up.
- Teacher: God created Adam and Eve not Adam and Steve.
- Me: Yeah, well, God didn't create boob jobs but you still have one.
I saw Puscifer Sunday night
and I can’t stop thinking about it
My brain just can’t stop reliving it. I can’t describe how beautiful Maynard is live, his voice it just, goddamn, it just isn’t the same on the computer, stereo, car speakers, ipod…
It’s just not the same at all. I’m like experiencing post-concert depression because I know I can’t see them again at Bonnaroo and I don’t know when the next tour of his will be.
Ugh guys. This is third time I’ve seen him live. I actually saw the very first ever concert that APC did at lollapalooza when I was really young and then I saw Tool a couple of years ago with Jeff, and now we’ve seen Puscifer and I’m just chomping at the bit for more.
IT’S JUST SO BEAUTIFUL EVERYTHING ABOUT IT.
Literally the first song at the show I just started to cry and tears were running down my face and I had to let the music just wash over me until I could acclimate to it.
He sang Momma Sed and Dozo and a bunch of the new songs and Carina Round, my god you guys she was AMAZING. What stage presence! She sang Rev 22:20 without Maynard and man, she fucking killed it. At first the whole audience you could tell was a bit skeptical even though it was obvious they were loving her and by the end everyone was completely into it.
I just can’t get over it and I can’t wait until I see them again live. It just isn’t the same, it just ISN’T the SAME.