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Certain drugs could worsen graft-versus-host disease in stem cell transplant patients, scientists show.

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image: Narrow-Spectrum Antibiotic Could Spare the Microbiome

Narrow-Spectrum Antibiotic Could Spare the Microbiome

By Amanda B. Keener | May 9, 2016

A drug that singles out Staphylococcus aureus leaves gut-dwelling microbiota largely intact, a mouse study shows.

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image: Breast Milk Primes Gut for Microbes

Breast Milk Primes Gut for Microbes

By Ruth Williams | May 5, 2016

Maternal antibodies engender a receptive gut environment for beneficial bacteria in newborn mice.

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image: Most Gut Microbes Can Be Cultured

Most Gut Microbes Can Be Cultured

By Jyoti Madhusoodanan | May 4, 2016

Contrary to the popular thought that many species are “unculturable,” the majority of bacteria known to populate the human gut can be grown in the lab, scientists show.

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image: Transplanted Fecal Microbes Stick Around

Transplanted Fecal Microbes Stick Around

By Tanya Lewis | April 28, 2016

Donor bacteria coexist with a recipient’s own for three months after a fecal transplant.

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image: Branching Out

Branching Out

By Ashley P. Taylor | April 11, 2016

Researchers create a new tree of life, largely composed of mystery bacteria.

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image: Mother’s Microbiome Shapes Offspring’s Immunity

Mother’s Microbiome Shapes Offspring’s Immunity

By Anna Azvolinsky | March 17, 2016

The maternal gut microbiome guides neo- and postnatal immune system development, a mouse study shows. 

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image: Similar Data, Different Conclusions

Similar Data, Different Conclusions

By Ashley P. Taylor | February 23, 2016

By tweaking certain conditions of a long-running experiment on E. coli, scientists found that some bacteria could be prompted to express a mutant phenotype sooner, without the “generation of new genetic information.” The resulting debate—whether the data support evolutionary theory—is more about semantics than science.

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image: Breast Milk Sugars Support Infant Gut Health

Breast Milk Sugars Support Infant Gut Health

By Anna Azvolinsky | February 18, 2016

Oligosaccharides found in breast milk stimulate the activity of gut bacteria, promoting growth in two animal models of infant malnutrition.

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image: Chimps Share Microbes When Socializing

Chimps Share Microbes When Socializing

By Kate Yandell | January 15, 2016

Social interaction influences the chimpanzee microbiome, increasing the number of microbial species the primates share.

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