New advances in stem-cell derived mouse embryo model

Just two weeks after announcing the development of a mouse embryo model, complete with beating hearts and the foundations for a brain and other organs, from mouse stem cells, researchers in the laboratory of Magdalena Zernicka-Goetz, ...

First mouse model with mitochondrial tRNALeu mutation developed

Studying the role of mitochondria—the specialized structures within cells responsible for energy production—in metabolic diseases has been difficult because of a lack of animal models with the necessary mitochondrial ...

The chemical controlling life and death in hair follicles

A single chemical is key to controlling when hair follicle cells divide, and when they die. This discovery could not only treat baldness, but ultimately speed wound healing because follicles are a source of stem cells.

How did vertebrates first evolve jaws?

Five-hundred million years ago, it was relatively safe to go back in the water. That's because creatures of the deep had not yet evolved jaws. In a new pair of studies in eLife and Development, scientists reveal clues about ...

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