Los avances de la biotecnología es otro de los temas que nos ocupará a lo largo del año. La lista de enfermedades de origen genético es interminable y algunas de ellas podrían encontrar en la manipulación de ciertos genes una terapia efectiva. Conseguir que los ciegos vean podría ser una realidad en el futuro.
Gene Therapy Helps Blind Children See
By Jocelyn Kaiser
ScienceNOW Daily News
24 October 2009
A single injection of DNA into the eyes of four children born with a blindness-causing disease has given them enough vision to walk without help. The study, published today, confirms that if patients with this disease are given gene therapy early in life, the results can be dramatic.
But the Penn researchers knew from their studies in animals that children should improve even more because they have more intact retinal tissue than adults do. Today in an online paper in The Lancet, their team and collaborators in Europe report full study results for three of the adults they treated earlier and nine more patients, including four children ages 8 to 11. The children gained more light sensitivity than the adults did--their light sensitivity increased as much as four orders of magnitude, versus one--and they made far fewer mistakes in an obstacle course.