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image: Fighting Viruses with RNAi

Fighting Viruses with RNAi

By | October 10, 2013

The long-debated issue of whether mammals can use RNA interference as an antiviral defense mechanism is finally put to rest.

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image: Mislabeled Microbes Cause Two Retractions

Mislabeled Microbes Cause Two Retractions

By | October 10, 2013

Two papers on plant immunity have been retracted, and questions remain about others with similar results. 

9 Comments

image: Genetic Roots of the Ashkenazi Jews

Genetic Roots of the Ashkenazi Jews

By | October 8, 2013

Most Ashkenazi Jews, traditionally believed to have descended from the ancient tribes of Israel, may in fact be maternally descended from prehistoric Europeans.

38 Comments

image: Inducing Pluripotency Every Time

Inducing Pluripotency Every Time

By | September 18, 2013

By removing a single gene, adult cells can be reprogrammed into a stem-like state with nearly 100 percent efficiency.

3 Comments

image: Single-Gene Knockout Collection Created

Single-Gene Knockout Collection Created

By | August 25, 2013

Researchers develop several thousand haploid human cell lines, each with a different gene mutant.

2 Comments

image: Eat Less and Live Longer?

Eat Less and Live Longer?

By | August 13, 2013

Mice on a low-calorie diet harbor a distinct population of gut microorganisms that helps prolong life.

6 Comments

image: A Wild Stem Cell Chase

A Wild Stem Cell Chase

By | July 24, 2013

A rigorous new study provides strong evidence that very small embryonic-like stem cells hypothesized to be found in mice and humans do not exist.

1 Comment

image: Dying Worms Emit Ethereal Glow

Dying Worms Emit Ethereal Glow

By | July 24, 2013

A head-to-tail wave of blue fluorescence signals the death of a nematode worm.

1 Comment

image: The Downside of Antibiotics?

The Downside of Antibiotics?

By | July 3, 2013

Bacteria-killing antibiotics might also damage a person’s tissues.

3 Comments

image: Temperature-Sensing Fat Cells

Temperature-Sensing Fat Cells

By | July 1, 2013

Researchers discover that unlike brown fat cells, white fat cells can directly sense cooling temperatures to switch on genes that control heat production.

1 Comment

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