O, good news

On 4/8/18, pranaya rani <pranayara...@gmail.com> wrote:
> https://www.naturalnews.com/2018-04-04-blindness-reversed-in-mice-with-artificial-photoreceptors-made-of-gold-and-titanium.html
>
>
>
>
> Blindness reversed in mice with artificial photoreceptors made of gold and
> titanium
>
>
>
> Wednesday, April 04, 2018 by:
> David Williams
> Tags:
> artificial photoreceptors,
> blind,
> blindness,
> cure for blindness,
> discoveries,
> eyesight,
> future tech,
> gold,
> golden eyes,
> impaired vision,
> macular degeneration,
> nanowires,
> photoreceptors,
> restoring eyesight,
> Retinitis pigmentosa,
> titanium oxide,
> vision,
> vision impairment,
> weird science
>
>
>
> 2,930VIEWS
> figure
> Image: Blindness reversed in mice with artificial photoreceptors made of
> gold and titanium
> figure end
> Images/Gundry-4-Eggplant-Dec-2017-MR
>
>
>
> (Natural News)
> They were blind, but now they see. Lab mice in China were given the ability
> to see again by a group of researchers thanks to the use of
> gold and titanium oxide as replacement materials
>  for natural photoreceptors. This is the focus of a new study that was
> recently published in the journal Nature Communications, wherein scientists
> from
>
>
>
> Fudan University
>  and the
> University of Science and Technology of China
>  detail a method that allowed blind mice to see again.
>
>
>
> As a report on the study states, the researchers simply
> replaced the dead photoreceptors
>  found in the blind lab mice with artificial versions that were made out of
> gold and titanium oxide. Evidently, these two materials can act as
> functional
> replacements for the natural rods and cones that are found in the lab mice,
> which they use to produce electrical signals that are sent to their brains
> when hit with photos.
>
>
>
> It said that the artificial photoreceptors designed by the researchers come
> in the form of nanowires that have been studded with tiny gold flakes, which
> effectively help tune the array to react to natural light in the visible
> spectrum. These nanowires were surgically implanted in the same exact place
> where
> the original photoreceptors can be found, and were set up as such that they
> maintained physical contact with retinal cells. This allowed the replacement
> photoreceptors to quickly pass along electrical signals to the brain.
> (Related:
> Is this artificial retina implant going to restore vision for millions of
> people?)
>
>
>
> It’s a rather simple and straightforward solution, but the researchers say
> that it’s extremely effective. The replacement photoreceptors are said to be
> responsive to light in the blue, green, and near ultraviolet spectrum, so
> while they do seem to grant vision, they aren’t meant to show full color
> just
> yet. Still, the method devised by the researchers shows plenty of promise
> for future developments that could even surpass current standards of vision.
>
>
>
> According to the researchers, the lab mice that were used in their
> experiments were genetically engineered to undergo a progressive degradation
> of their
> natural photoreceptors, which lead to their eventual blindness. Their actual
> condition is similar to those who suffer from retinitis pigmentosa and
> macular
> degeneration, which both destroy the eye’s ability to pass along information
> to the brain, thereby impairing eyesight. Interestingly, the rest of the
> visual
> processing system is unaffected by such conditions, and that is how the
> researchers found their opening for their method.
>
>
>
> In their tests, the researchers noted that the formerly blind lab mice were
> able to respond to light of comparable intensity when compared with normal
> lab mice. And what’s more, it appeared that the artificial receptors put in
> place were sensitive to dots of light that were as small as less than 100
> micrometers
> across, which is about the size of a human hair.
>
>
>
> The responsiveness of the photoreceptors was measured by the researchers by
> observing the response of their visual cortex upon being hit by light. It is
> said that the pupils of the mice even began to dilate again after some time,
> which showed that their eyes were indeed reacting to light once again. In
> other words, the artificial “bridge” between the eyes and the brain they
> developed worked just as planned.
>
>
>
> As for what exactly the mice were seeing when their eyes reacted to light,
> the researchers aren’t certain. They concluded that their visual cortexes
> work,
> and that visual information was indeed passed along to the brain, but the
> actual images that the mice saw remain unclear. What’s clear is that after
> eight
> weeks of testing, the formerly blind mice didn’t show any signs of
> discomfort or injury. Now it will only be a matter of time before this
> method is improved
> upon and worthy of trial in humans.
>
>
>
> Find out other ways that scientists are experimenting with natural human
> processes in
> BioTech.news.
>
>
>
> Sources include:
>
>
>
> Blogs.DiscoverMagazine.com
>
>
>
> Nature.com
>
>
>
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> article end
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> href="https://www.naturalnews.com/2018-04-04-blindness-reversed-in-mice-with-artificial-photoreceptors-made-of-gold-and-titanium.html";>Blindness
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