Hearing Loss Therapy: Congenital deafness can now be treated! This injection will restore children's hearing.
Inner Ear Gene Therapy: For those who have had hearing problems since childhood, there's good news: their hearing may be restored. Let's explain how.
Can gene therapy cure congenital deafness?
Can Gene Therapy Cure Congenital Deafness? The world has always been somewhat silent for people with hearing problems since birth. This condition, called congenital deafness, begins at birth and profoundly impacts a person's communication, learning, and daily life. It is often due to genetic factors, i.e., changes in specific genes that are passed down through generations. Until now, the only options available in such cases were hearing aids or cochlear implants, which, while helpful, could not fully restore natural hearing.
New hope
Meanwhile, a new study from the Karolinska Institute in Sweden has offered a glimmer of hope. Published in the prestigious journal Nature, it suggests that gene therapy may be able to significantly reverse a specific type of genetic deafness, both in children and young adults.
Where has the discovery been made?
In this study, scientists collaborated with Chinese hospitals and universities to study 10 patients aged 1 to 24. All of these patients' hearing problems were due to mutations in the OTOF gene. This gene plays a crucial role in the production of a protein called otoferlin, which helps transmit sound signals from the ear to the brain. When this protein malfunctions, the ear can perceive sound, but the signals cannot be transmitted properly to the brain.
This is how the problem was solved.
To address this problem, researchers used gene therapy. This involves introducing a healthy gene into the body. A safe virus, called adeno-associated virus, was used to deliver the functional OTOF gene directly into the ear. This procedure was performed via a small injection into the round window, a region at the base of the cochlea. The results were encouraging. Many patients began experiencing improvements in their hearing within just one month. After six months, all participants showed clear improvement. They could even hear much softer sounds than before, which was previously impossible for them.
Improvement in children
Significantly, the greatest improvement was seen in children, especially those between the ages of 5 and 8. One young girl even regained near-normal hearing within a few months of treatment and was able to communicate easily with her mother. This also indicates that early treatment can lead to better outcomes.