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image: Evolutionary Rewiring

Evolutionary Rewiring

By | February 26, 2015

Strong selective pressure can lead to rapid and reproducible evolution in bacteria.

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image: Stem Cells Phone Home

Stem Cells Phone Home

By | February 26, 2015

A screen of 9,000 small molecules identifies a treatment that improves the targeting of mesenchymal stem cells to sites of damaged tissue.

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image: Stemming Genetic Changes in Cultured Cells

Stemming Genetic Changes in Cultured Cells

By | February 25, 2015

Researchers report an association between culture conditions and genetic changes in stem cells over time.

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image: The Dark Side of Melanin

The Dark Side of Melanin

By | February 19, 2015

Researchers uncover a previously unknown way UV light can act on melanin, spurring cancer-causing mutations hours after sun exposure.

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image: Exploring the Epigenome

Exploring the Epigenome

By | February 18, 2015

A National Institutes of Health-funded consortium publishes 111 reference maps of DNA and histone marks.

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image: Neuroscience of Marijuana Munchies

Neuroscience of Marijuana Munchies

By | February 18, 2015

Cannabinoids cause appetite-suppressing neurons to produce an appetite-stimulating hormone in mice.

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image: Signs of Sleep Deprivation in the Blood

Signs of Sleep Deprivation in the Blood

By | February 11, 2015

Circulating fats and acids drop in people and rats that aren’t getting enough sleep.

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image: “Inner GPS” Support

“Inner GPS” Support

By | February 5, 2015

Grid cells—the neurons that function as a spatial navigation system—require input from another set of neurons, a rat study shows.

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image: Long-Lived Immunotherapy Stem Cells

Long-Lived Immunotherapy Stem Cells

By | February 4, 2015

Genetically modified T memory stem cells persist in patients for more than 10 years, and can differentiate into a variety of T cell types.

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image: Bouncing Back

Bouncing Back

By | February 1, 2015

In mice, a transcriptional regulator, β-catenin, activates a microRNA-processing pathway in the nucleus accumbens to promote resilience to social stress.

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