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Gene Therapy May Save Thousands from Blindness

Choroideremia is an X-linked recessive disease that leads to blindness due to mutations in the CHM gene that prevents production of a protein necessary for seeing light, but a new study has found a potential therapy to treat the disease, The Associated Press reports. The findings are based on a study published in The Lancet in which 6 patients with choroideremia were injected with a harmless vaccine containing the missing protein and then administered visual function tests. Scientists found that “mean gain in visual acuity overall was 3-8 letters” and that “maximal sensitivity measured with dark-adapted microperimetry increased in the treated eyes.” Experts say that the results are promising for the “same approach might be useful for other causes of blindness, including macular degeneration.”

Read the article published by The Associated Press.

Read the study in The Lancet.