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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: 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: Rebuilding Missing Muscle

Rebuilding Missing Muscle

By | April 30, 2014

An acellular matrix can help guide stem cells to injury sites and regrow muscles in both mice and humans, a study finds.

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image: Another Way Fiber Is Filling

Another Way Fiber Is Filling

By | April 29, 2014

Acetate, a short-chain fatty acid released following the fermentation of dietary fiber in the gut, accumulates in the brain and can affect appetite in mice.

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image: Epigenetic Effects of Mom’s Diet

Epigenetic Effects of Mom’s Diet

By | April 29, 2014

Molecular markers of a mother’s nutrition around the time of conception can be found in her child’s DNA.

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image: Men Trigger Mouse Stress

Men Trigger Mouse Stress

By | April 28, 2014

Mice become stressed in the presence of male, but not female, experimenters, triggering a physiological response that dampens pain.

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image: SCNT Picks Up Steam

SCNT Picks Up Steam

By | April 28, 2014

Study confirms that somatic cell nuclear transfer, an alternate method of creating patient-specific pluripotent stem cells, can be used to reprogram adult cells.

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image: Microbe’s Diversity Is Vast, Ancient

Microbe’s Diversity Is Vast, Ancient

By | April 24, 2014

A marine cyanobacterium possesses astounding genomic diversity, yet still organizes into distinct subpopulations that have likely persisted for ages.

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image: Cochlear Implant Gene Therapy

Cochlear Implant Gene Therapy

By | April 23, 2014

The surgically implanted device can be tweaked to provide short electric bursts that send a nerve-growing gene into local cells, a study on guinea pigs shows.

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image: The Surprising Evolution of Sex Determination

The Surprising Evolution of Sex Determination

By | April 23, 2014

A detailed analysis of sex chromosomes finds unexpected evolution of functional Y chromosome genes across species.

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