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image: Toggling Between Life and Death

Toggling Between Life and Death

By | April 1, 2015

In estrogen receptor–positive breast cancer, the transcription factor IRF1 tips the balance between cellular suicide and survival through autophagy.

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image: Growth Hormone Guidance

Growth Hormone Guidance

By | March 1, 2015

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

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image: Long Live Collagen

Long Live Collagen

By | March 1, 2015

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

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image: B Cell Bosses

B Cell Bosses

By | February 1, 2015

Gut bacteria in mice spur regulatory B cells to differentiate and release an anti-inflammatory cytokine.

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image: Polymerase Pieces

Polymerase Pieces

By | December 1, 2014

Researchers discover a new subunit of a bacterial RNA polymerase—as well as hints of its potential role in defending against viruses.

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image: Mitochondria Munchers

Mitochondria Munchers

By | November 1, 2014

Glial cells consume mitochondria released by neurons in the optic nerve.

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image: Cone Cell Correctors

Cone Cell Correctors

By | October 1, 2014

In mice, adult cone cell outer segments and their visual functions deteriorate if two microRNAs are not present.

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image: Beneficial Brew

Beneficial Brew

By | June 1, 2014

Drinking green tea appears to boost the activity of DNA repair enzymes.

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image: Long-Distance Call

Long-Distance Call

By | May 1, 2014

Neurons may use interferon signals transmitted over great distances to fend off viral infection.

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image: The Telltale Tail

The Telltale Tail

By | May 1, 2014

A symbiotic relationship between squid and bacteria provides an alternative explanation for bacterial sheathed flagella.

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