Final answer:
Fetal cell transplantation for the treatment of HD involves introducing healthy fetal cells into the brain to replace damaged cells and improve symptoms.
Step-by-step explanation:
Fetal cell transplantation for the treatment of Huntington's Disease (HD) involves introducing healthy fetal cells into the brain of a patient with HD. These cells can then replace the damaged cells in the brain and produce the proteins that are deficient in individuals with HD.
During the transplantation, fetal cells are obtained from a donor and then carefully prepared for the procedure. The cells are then implanted into specific areas of the brain affected by HD. The hope is that these transplanted cells will integrate into the patient's brain and improve their symptoms.
Examples: In a study published in the journal Cell Reports, researchers transplanted fetal cells into mice with HD and found that the transplanted cells successfully integrated into the mice's brains and improved their motor function.