Some medical conditions can't be ethically investigated in humans, so researchers are finding interesting ways to grow people parts in the bodies of other types of animals. Jian Feng and colleagues at the University at Buffalo recently engineered prenatal mice that have human cells in key parts of their anatomy. Their report appears in Science Advances.
The humanized mice may one day incubate human cells needed for treatments of chronic diseases like kidney failure and diabetes, and provide new and improved models of how the human body succumbs to various conditions, from cancer to degenerative conditions to COVID-19.
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