Study promises : gene therapy to cure your color blindness

color-blindness-test-2Color Blindness has been an incurable gene linked eye condition. Recently a study conducted in University of California and the Johns Hopkins Medical School in Baltimore which promises to bring in color to your world.

Before going any further read the following excerpt:

……..showed in a series of experiments, how the color vision abilities of mice can be enhanced. Mice have naturally only dichromatic vision which can be compared to red-green color blindness. Dichromatic means, they have only two different types of color receptors in their eyes whereas humans normally have three different types which make up our color vision.

The scientists “pimped” the mice in their experiments with the missing genes for color perception which they took from humans. And those mice performed much better in the test setup as their dichromatic colleagues. This led to the assumption that the enhanced mice have a better (trichromatic) color vision.

Bit confused after reading it? Let us help you to understand.

usflagcolorblind_1Since we all know that color blindness is genetic, therefore treatment must be gene linked. Deficiency in number of cone cells results in color blindness. It is so significant that the deficiency of one cone cell may make it difficult for the patient to identify specific colors. For a vivid description of the disease please refer to our article on color blindness.

Mouse generally have two genes which produce receptors for colored vision.Now when a third gene was introduced it made it to respond to three different type of colors. Thus in a way it gained a status similar to human vision. The process is referred to as "gene knock-in" This struck the researchers that if on incorporation of a gene can make mice to view three different colors, then why can't impaired gene be repaired in human to make his vision flawless.

Thereafter attempts are going on to incorporate the corrected gene in substitute to the impaired one and deliver them through stem cell transplants. The researchers  are very much optimistic about the results and hope you also be after reading this.


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