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image: Short, Strong Signals

Short, Strong Signals

By Ruth Williams | March 25, 2015

Methylation increases both the activity and instability of the signaling protein Notch.


image: Irisin Skepticism Goes Way Back

Irisin Skepticism Goes Way Back

By Kerry Grens | March 18, 2015

Post-publication peer reviewers had questioned data about the supposed fat-browning enzyme from the get-go.

1 Comment

image: Growth Hormone Guidance

Growth Hormone Guidance

By Jenny Rood | March 1, 2015

Intact growth hormone signaling pathways are needed for methionine restriction to extend mouse lifespan.


image: Long Live Collagen

Long Live Collagen

By Ashley P. Taylor | March 1, 2015

Increased collagen expression is a common feature of many different pathways to extended longevity in worms.


image: Weiwei Dang: Epigenetics in Aging

Weiwei Dang: Epigenetics in Aging

By Jef Akst | March 1, 2015

Assistant Professor, Huffington Center On Aging, Baylor College of Medicine. Age: 38


image: Evolutionary Rewiring

Evolutionary Rewiring

By Ruth Williams | February 26, 2015

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


image: Stem Cells Phone Home

Stem Cells Phone Home

By Jef Akst | 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.

1 Comment

image: The Dark Side of Melanin

The Dark Side of Melanin

By Anna Azvolinsky | February 19, 2015

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


image: Signs of Sleep Deprivation in the Blood

Signs of Sleep Deprivation in the Blood

By Bob Grant | February 11, 2015

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

1 Comment

image: Crystal Structure, Murky Function

Crystal Structure, Murky Function

By Ruth Williams | January 29, 2015

Scientists have determined the crystal structures of bacterial translocator proteins, but their functions remain unclear.


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