Scientists restore sight to blind mice by regenerating optic nerve

lab mouse

Scientists restore vision to blind mice.

There are three blind men who have an inherited eye disorder that had destroyed the light-sensing cells of their retinas many years ago.  Now one of the blind men can walk around at night navigating by streetlight and headlights.  Another can read his own name.  And the third mean has been able to see his fiancée’s smile for the very first time.  All of this has been made possible by the retinal implants they have been fitted with.  The implants took over from the broken cells.  They sense incoming light by converting it into electrical impulses delivered to the brain.  They aren’t close to having 20/20 vision, but they have restored sight to people who have lived without it for years.

Continue reading… “Scientists restore sight to blind mice by regenerating optic nerve”

Hate itchy mosquito bites? Building up an immunity only requires about 15,000 bites per year

Meet Steve Schutz. Some might say he’s very dedicated to his work. But others would call him downright crazy. You see Steve works in an insectarium, a place where mosquitos are born and raised. And to ensure its residents are well-fed and propagate, he serves up his bare arm once a week for dinner.

As a result, after a feeding the 50 red welts on his lower arm barely even register as a slight tingle since Steve has built up an immunity to the mosquito’s saliva…

Continue reading… “Hate itchy mosquito bites? Building up an immunity only requires about 15,000 bites per year”

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