Presymptomatic genetic testing for neurodegenerative diseases can help patients make effective treatment decisions, but the medical profession needs to ensure that the increasing use of the tests is done responsibly.
Sheldon Zink, PhD, Rachel Zeehandelaar, and Stacey Wertlieb, MBe
The benefits of the international presumed-consent policy are presented as a solution to the United States' current shortage of organs available for transplantation.
The genetic engineering of organ-donor animals to decrease the risk of human immune system rejection poses ethical and psychological challenges to the long-held boundary between humans and other animal species.