Several clinical case studies have found that Parkinson's patients improve following transplants of __________ , but the treatment remains controversial.
A) fetal substantia nigra cells
B) their own striatal cells
C) their own substantia nigra cells
D) adrenal cortex cells
E) fetal adrenal medulla cells

Question

Quizplus · Accepted Answer

Several clinical case studies have found that transplanting fetal substantia nigra cells into Parkinson's patients can improve their symptoms. However, the treatment remains controversial because of ethical concerns about using fetal tissue for transplantation.

Several Clinical Case Studies Have Found That Parkinson's Patients Improve