Personal Liberty Digest™ will be upgraded this weekend to reflect a dynamic new look and mobile-friendly viewing to enhance your experience! Plus, we'll be providing even more of the compelling content you've come to expect, delivered in a whole new way!

  Comments Subscribe to Personal Liberty News Feed Subscribe to Personal Liberty
 

Fish Stem Cells May Repair Human Eyesight

EDMONTON, Alberta (UPI) — Zebrafish, often used in genetics studies, may hold the key to repairing damaged retinas and returning eyesight to people, Canadian researchers say.

Scientist at the University of Alberta report a zebrafish’s stem cells can selectively regenerate damaged photoreceptor cells.

Geneticists have known for some time that unlike human stem cells, stem cells in zebrafish can replace damaged cells involved in many components of eyesight.

Rods and cones are the most important photoreceptors. Rods provide night vision while cones give a full color view during daylight.

To date almost all success in regenerating photoreceptor cells has been limited to rods, not cones, the researchers said.

What had not been determined, Alberta biologist Ted Allison said, was whether stem cells could be instructed to only replace the cones in a retina, with important implications for human eyesight.

“This is the first time in an animal research model that stem cells have only repaired damaged cones,” Allison said. “For people with damaged eyesight repairing the cones is most important because it would restore daytime color vision.”

The next research, he said, is to identify the particular gene in the zebrafish genome that activates repair of damaged cones.

UPI - United Press International, Inc.

Since 1907, United Press International (UPI) has been a leading provider of critical information to media outlets, businesses, governments and researchers worldwide.

Facebook Conversations

Join the Discussion:
View Comments to “Fish Stem Cells May Repair Human Eyesight”

Comment Policy: We encourage an open discussion with a wide range of viewpoints, even extreme ones, but we will not tolerate racism, profanity or slanderous comments toward the author(s) or comment participants. Make your case passionately, but civilly. Please don't stoop to name calling. We use filters for spam protection. If your comment does not appear, it is likely because it violates the above policy or contains links or language typical of spam. We reserve the right to remove comments at our discretion.

Is there news related to personal liberty happening in your area? Contact us at newstips@personalliberty.com

Bottom
close[X]

Sign Up For Personal Liberty Digest™!

PL Badge

Welcome to PersonalLiberty.com,
America's #1 Source for Libertarian News!

To join our group of freedom-loving individuals and to get alerts as well as late-breaking conservative news from Personal Liberty Digest™...

Privacy PolicyYou can opt out at any time. We protect your information like a mother hen. We will not sell or rent your email address to anyone for any reason.