Scientists returned paralyzed rats were able to walk
As the newspaper writes EurekAlert, a group of scientists from the Israel Institute of Technology for the first time succeeded in using stem cell therapy paralyzed rats recover the ability to walk, and the ability to feel his limbs. In addition, this treatment led to the restoration of the damaged spinal cord.
The unique study was led by Dr. Shulamit Levenberg. The spinal cord was crossed during the experiment, a group of laboratory rats, which is why rodents limbs were paralyzed. Then, the same animals were implanted with human stem cells which sampling was made of the oral mucosa. These cells have been specially modified to ensure that they were able to produce nerve growth factors.
In addition, in order to stem cells were fixed in the right places, the experts created a three-dimensional framework for the rodent spinal cord. Themselves cells were administered to rats at regular intervals over several weeks. For the control group of animals was selected from the same spinal cord injury. But these traditional rats received to restore nerve tissue treatment. As a result, a three-week experiment, 42% of the rats with a paraplegic could support the weight of your own body, and to walk again, and 75% of the animals responded to treatment, began to feel the legs and tail. In the control group the percentage recovery was extremely low. Now Israeli scientists have conducted further studies that will reveal the reason, due to which the therapy is not allowed the drug to act positively on all animals.