4/4/2024 0 Comments Human chimera signs![]() What’s more, because of ethical concerns about ‘humanized’ mice, researchers may not be permitted to let these embryos grow to term. But other researchers have not been able to reproduce these results. Previous attempts to create mouse-human chimeras involved injecting human stem cells into mouse blastocysts - small balls of cells that form after fertilization but before implantation in the uterus. But growing these neurons in a flat dish - or even as three-dimensional ‘mini-brains’ - fails to recreate the complex environment of the developing body. Researchers can coax skin cells from people with autism into becoming neurons and trace the effects of any mutations in those cells. The chimeras are the latest attempt to grow cells from people inside laboratory animals. The approach could allow researchers to track the fates of cells with autism-linked mutations. Injecting cells from people into white mice, researchers have created spotted animals that carry a mix of mouse and human DNA. Dalmatian mice: Injecting albino mouse embryos with cells from black mice (left) or those from an African-American individual (right) yields mice with white coats that sport patches of black fur. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |