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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: Trump Meets with HHS, NIH Brass

Trump Meets with HHS, NIH Brass

By | April 5, 2017

President Donald Trump, HHS Secretary Tom Price, and NIH Director Francis Collins discussed the opioid crisis and retaining young researchers in the biomedical research enterprise, among other things, according to a White House official.

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image: Book Excerpt from <em>The Politics of Cancer</em>

Book Excerpt from The Politics of Cancer

By | April 1, 2017

In Chapter 2, “Identifying the Culprits,” author Wendy Whitman Cobb describes how small-government, anti-regulation conservatism can hinder the fight against cancer.

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image: Contributors

Contributors

By | April 1, 2017

Meet some of the people featured in the April 2017 issue of The Scientist.

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Mice engineered to overproduce the organelles involved in cell division spontaneously develop malignancies.

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image: How Will Cancer Research Fare Under Trump?

How Will Cancer Research Fare Under Trump?

By | April 1, 2017

The new administration has not yet made its intentions clear.

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image: Notable Science Quotes

Notable Science Quotes

By | April 1, 2017

Eugene Garfield, the cancer moonshot, employee genetic testing, and more

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image: Starvation Response Triggers Melanoma Invasion

Starvation Response Triggers Melanoma Invasion

By | April 1, 2017

Through similar mechanisms, amino acid depletion in culture and cytokine activity in the tumor microenvironment prompt cancer cells to metastasize.

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    Regularly taking breaks from eating—for hours or days—can trigger changes both expected, such as in metabolic dynamics and inflammation, and surprising, as in immune system function and cancer progression.

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    Sensory cells of the mouse intestine let the brain know if certain compounds are present by speaking directly to gut neurons via serotonin.

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