"Chinese Scientist He Jiankui Sparks Controversy with Proposed Gene Editing Study"

Controversial Chinese scientist He Jiankui, who previously created the first gene-edited babies, has proposed new research involving gene editing of mouse embryos and human fertilized egg cells to test for protection against Alzheimer's disease. The proposal has raised concerns among scientists and medical ethics experts, who question the scientific soundness and ethical implications of the research. He claims the study is a preclinical study and emphasizes that no embryos will be used for pregnancy. Chinese authorities have tightened rules and ethical standards for human gene editing following He's previous controversial research.