Researchers identify the signaling program that enables finger and toenail stem cells to direct digit regeneration after amputation.
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In avian species, a gene induces programmed cell death during development in the area where a phallus would otherwise grow.
Democratic Senator Frank Lautenberg of New Jersey, who fought hard against the alcohol and tobacco industries, has passed away.
In the fruit fly, the ability of neural stem cells to make the full repertoire of neurons is regulated by the movement of key genes to the nuclear periphery.
Turning cell phones into basic research tools can improve health care in the developing world.
Researchers use DNA from ancient tooth tartar to chart changes in the bacterial communities that have lived in human mouths for 8,000 years.
As new infections surface and spread, science meets the challenges with ingenuity and adaptation.
Italian lawmakers have demanded formal approval for a controversial stem-cell therapy, but allowed some patients to continue treatment under stricter rules.
Researchers discover a microbe living at -15°C, the coldest temperature ever reported for bacterial growth, giving hope to the search for life elsewhere in the cosmos.
Chilly weather could impede the immune reactions that most effectively contain viruses like the common cold.
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