动物实验,人体器官培育 z-bo 2020-08-21 492

　　Researchers worry that this study may produce highly anthropomorphic animals. The National Institutes of Health recently decided to continue its efforts to grow human organs in animals such as pigs and sheep. It is this research that has been severely criticized due to ethical issues. The mosaic phenomenon of the animal and human DNA involved in the research also highlights the research. Human DNA mosaicism in animals may also cause debates about morality and health.

　　The latest "MIT Technology Review" article introduces this research, and researchers are trying to cultivate human organs, such as the heart, liver, and lungs. In the early stages of embryonic development, human cells are added to animal embryos. The article confirmed that at least 20 pigs were pregnant. It has been confirmed, but it has not been delivered in full.

　　In September last year, the National Institutes of Health (NIH) announced that it would not support research on "human and animal chimeras" unless it conducts a more rigorous assessment of its scientific and social impact. At that time, the National Institutes of Health froze all funds for the project. However, in a recent statement, the National Institutes of Health (NIH) addressed the ethical issues of blurring the boundaries of species and expressed concern that "animals possess human brain cells and have the opportunity to change their cognitive state."

　　Dr. Daniel Gully, who is in charge of chimerism research at the University of Maryland, said: “We can raise animals without a heart. We produce pigs without skeletal muscle or blood vessels. If these pigs have some normal germ cells, they will not survive. Conjugate is a human transplant. Some people think it can help you get the organs you need, cultivate stem cells for research, and use them to save countless lives. I am worried that it will cultivate human germ cells, human hair or higher intelligence.

　　But the experiment has not yet been completed, so researchers can only use the fetus for further research. No one knows what will happen in the future, but it is certain that the appearance of this organ will inevitably lead to ethical and moral disputes. No observation is needed, and there are no clear rules for chimerism research.