HOME >> BIOLOGY >> NEWS
'Blind' cells see the light; maybe someday humans will, too

"on" cells that turn on when the eye is hit with light, while others "off" cells turn off. This is part of the eye's analysis circuitry, which helps pick out significant features of the visual field, such as edges and motion, even before the signals reach the brain. Inserting the same switch in all retinal ganglion cells could result in a visual muddle.

"Your brain would be confused, like feeling hot and cold at the same time," he said. "Electrodes would have this problem, too, indiscriminately stimulating on and off cells."

One solution, Kramer said, is to re-engineer a sodium channel to function just the opposite of the mutated potassium channel, then target the engineered sodium channel to "on" cells and the engineered potassium channel to "off" cells, using cell specific promoters.

"If you're using electrical stimulation, there is no way to selectively deliver information to two different channels," he said. "But with genetics, we can do something that electrical stimulation can never do."

"We haven't cured blindness yet," Kramer added, "but that's our main motivation in this work."


'"/>

Contact: Robert Sanders
rsanders@berkeley.edu
510-643-6998
University of California - Berkeley
21-Nov-2004


Page: 1 2 3 4 5

Related biology news :

1. Newly created cancer stem cells could aid breast cancer research
2. ESF EURYI award winner aims to stop cancer cells reading their own DNA
3. OHSU turns mouse into factory for human liver cells
4. UCLA scientists produce functioning neurons from human embryonic stem cells
5. UCF research links proteins, stem cells and potential Alzheimers treatment
6. Teamwork between 2 key proteins necessary for normal development and regulation of red blood cells
7. In a first, Einstein scientists discover the dynamics of transcription in living mammalian cells
8. How cells change the pace of their steps
9. Discredited Korean embryonic stem cells true origins revealed
10. A low expression of MX2 gene exists in the white blood cells of narcoleptics
11. Penn researchers discover pathway that eliminates genetic defects in red blood cells

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/3/2020)... ... March 03, 2020 , ... Amplify Surgical, Inc., today announces that the company ... System. , The landmark case was performed by Dr. Ali Najafi at ... noted, “dualX has completely changed the game for expandable interbodies. The ability to ...
(Date:3/2/2020)... ... March 02, 2020 , ... ... 71st annual Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy ( Pittcon 2020 ... Pittcon is the world’s leading annual conference and exposition on laboratory science, attracting ...
(Date:2/28/2020)... ... February 27, 2020 , ... ... newest portfolio company. Established to develop and commercialize a manufacturing platform for ... Mexico State University (NMSU). The patent-pending technology results in membranes with controllable ...
Breaking Biology News(10 mins):
(Date:3/3/2020)... (PRWEB) , ... March 03, 2020 , ... ... serving the pharmaceutical, biotech and medical device industries, was recognized by INC. 5,000 ... puts forward annual lists to note industry leaders greatly impacting their spheres of ...
(Date:2/26/2020)... ... February 25, 2020 , ... Continuing its ... published the results of its safety assessment on the biotechnologically produced 3-Fucolsyllactose (3-FL) ... human milk. These complex carbohydrates are indigestible and therefore function as a prebiotic ...
(Date:2/21/2020)... ... February 21, 2020 , ... Join Forrest Brown, Engineering Services Manager – Northeast ... for an informative session on Wednesday, February 26, 2020 at 1pm ... incorporate into facility design to add manufacturing flexibility in the future, especially for CMOs ...
(Date:2/19/2020)... YARDLEY, Pa. (PRWEB) , ... February 19, 2020 ... ... performance, and process solutions for the life sciences industry, today announced the opening ... by Kenji Nagamura, Associate Partner, Red Nucleus R&D. , Red Nucleus announced the ...
Breaking Biology Technology:
Cached News: