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A mouse study reveals a causal link between changes in intestinal microbiota and increasing inflammation as the rodents age.

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Mice exposed to low doses of penicillin in utero or as young pups exhibited long-term behavioral differences not seen in their non-exposed counterparts, according to a study.

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Recolonizing middle-aged animals with bacteria from younger ones kept killifish alive longer than usual, researchers report.

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image: Details of First Three-Parent IVF Revealed

Details of First Three-Parent IVF Revealed

By | April 3, 2017

The team that oversaw the first use of mitochondrial replacement therapy that resulted in a live birth has published an account of the procedure.

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image: In Certain Social Bees, Gut Microbiomes Follow Phylogeny

In Certain Social Bees, Gut Microbiomes Follow Phylogeny

By | March 29, 2017

Corbiculate bees and their gut-dwelling microbes have been coevolving since the social species evolved from their solitary ancestors around 80 million years ago, scientists suggest. 

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Scientists issue a call to reconsider the rules governing the creation of tissues, organs, and other structures made possible by recent advances in synthetic biology. 

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image: San People Write Ethical Code for Research

San People Write Ethical Code for Research

By | March 21, 2017

With lifestyles similar to our hunter-gatherer ancestors, the San people of Southern Africa are popular study subjects.

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image: U.K. Moves Forward With Three-Parent IVF

U.K. Moves Forward With Three-Parent IVF

By | March 20, 2017

The country’s fertility regulator has approved the first application to carry out mitochondrial replacement therapy, which uses biological material from two women and one man to create an embryo.

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image: Inflammation Drives Gut Bacteria Evolution

Inflammation Drives Gut Bacteria Evolution

By | March 16, 2017

Viruses within Salmonella rapidly spread genes throughout the bacterial population during a gut infection, scientists show.

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image: Human Gut Microbe Transplant Alters Mouse Behavior

Human Gut Microbe Transplant Alters Mouse Behavior

By | March 1, 2017

Fecal transplants from humans with irritable bowel syndrome and anxiety into mice lead to similar symptoms and anxiety-like behavior in the rodents, researchers report.  

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