How should gene therapy treat these two diseases. cystic fibrosis and parkinson disease?

Correct gene defects: Cystic fibrosis is a genetic disorder where a dysfunctional cftr protein causes problems in various organ systems. By restoring the function of this protein in the involved body systems, it is hoped that normal functionality will be restored & the harmful effects of CF disease will improve. There are still several obstacles before it can be successfully implemented in CF patients everywhere.