Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Granada-Based Scientists Make The First Artificial Cornea Model Using Rabbit Stem Cells

23.03.2007
Scientists of the research group called ‘Ingeniería Tisular’ of the University of Granada have made the first artificial cornea model using stem cells of rabbit’s sclerocorneal limbus.

This result is a great advance due to the shortage of donors of this transparent epithelium located in the anterior segment of the eyeball that refracts the incoming light onto the retina. Moreover, these artificial corneas can be a tool for in vitro research into medicine permeability.

Experts have obtained a complete replacement of the cornea using cell cultures and different tissue-engineering protocols. In order to do so, they have used small biopsies of sclerocorneal limbus taken from rabbits’ eyeball. Scientists separate the existing stem cells and isolate them. A biopsy is a diagnostic procedure consisting of taking a sample of tissue to analyse it under a microscope. They also prepare a support with different components including polymers to reconstruct the cornea layers.

Scientists admit that more time is still necessary before these corneas can be applied to humans. However, in their effort to make artificial tissues with a therapeutical use they are expanding their research scope so as to obtain artificial mouth mucous membranes. In the case of this material, highly demanded for odontological and maxilofacial surgery, a similar methodology consisting of biopsies of the mouth is being used.

... more about:
»Cell »Cornea »artificial

The tissues obtained pass strict viability tests, that is, quality controls which certify that constructs will not degenerate in the future. In order to do so, experts put the new biological materials to analytic electronic microscopy and genetic analysis tests.

In order to develop their research work, experts of the Histology Department of the University of Granada are closely working with the Ophthalmology services of the Granada hospitals Virgen de las Nieves and San Cecilio, as well the Maxilofacial Surgery service, the Regional blood transfusion centre, and the Bank of tissues.

Ismael Gaona | alfa
Further information:
http://www.andaluciainvestiga.com

Further reports about: Cell Cornea artificial

More articles from Life Sciences:

nachricht A Map of the Cell’s Power Station
18.08.2017 | Albert-Ludwigs-Universität Freiburg im Breisgau

nachricht On the way to developing a new active ingredient against chronic infections
18.08.2017 | Deutsches Zentrum für Infektionsforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

A Map of the Cell’s Power Station

18.08.2017 | Life Sciences

Engineering team images tiny quasicrystals as they form

18.08.2017 | Physics and Astronomy

Researchers printed graphene-like materials with inkjet

18.08.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>