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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: 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.

5 Comments

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.

2 Comments

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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image: Capsule Reviews

Capsule Reviews

By | February 1, 2015

Touch, The Altruistic Brain, Is Shame Necessary?, and Future Arctic

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image: Stubbornly Persistent

Stubbornly Persistent

By | February 1, 2015

Microorganisms continually challenge our assumptions of what life can achieve.

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image: TS Live: The Enemy Within

TS Live: The Enemy Within

By | February 1, 2015

How viruses wield tiny molecules of RNA to help them persist in our bodies for years, decades, and sometimes an entire life span

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image: Contributors

Contributors

By | February 1, 2015

Meet some of the people featured in the February 2015 issue of The Scientist.

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