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image: More Doubt Cast Over Cardiac Stem Cells

More Doubt Cast Over Cardiac Stem Cells

By | May 7, 2014

Contrary to previous reports, cell lineage tracing reveals stem cells in the heart rarely contribute to new muscle.

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image: Exosomes Vital for Heart Repair

Exosomes Vital for Heart Repair

By | May 6, 2014

Reparations after a heart attack in mice depend not on stem cells, but on the exosomes they secrete.

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image: Week in Review: April 28–May 2

Week in Review: April 28–May 2

By | May 2, 2014

Male scientists stress mice out; using SCNT to reprogram adult cells; acetate can reach mouse brain, reduce appetite; WHO sounds “post-antibiotic era” alarm

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image: Hear Ye, Hear Ye

Hear Ye, Hear Ye

By | May 1, 2014

Tools for tracking quorum-sensing signals in bacterial colonies

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image: Sophie Dumont: Forces at Play

Sophie Dumont: Forces at Play

By | May 1, 2014

Assistant Professor, Department of Cell & Tissue Biology, University of California, San Francisco. Age: 38

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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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image: Inactive Actin

Inactive Actin

By | May 1, 2014

Clathrin-mediated endocytosis shuts down during mitosis in eukaryotic cells because all of the required actin is hoarded by the cytoskeleton.

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image: Rare Fat Keeps Fly from Freezing

Rare Fat Keeps Fly from Freezing

By | April 30, 2014

Researchers report the first evidence of cryopreservation by an overwintering insect in which stores of an uncommon lipid are critical.

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image: Week in Review: April 21–25

Week in Review: April 21–25

By | April 25, 2014

Evolution of Y chromosome; delivering gene with “bionic ears”; diversity of an important cyanobacterium; charting genome-sequencing progress; blockbuster pharma deals

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image: Artificial Blood Is Patient-Ready

Artificial Blood Is Patient-Ready

By | April 16, 2014

In the midst of news that engineered organs are being implanted into animals and people, researchers announce the creation of artificial blood for transplant.

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