ScienceDaily: Top Science News |
- Genetic study of house dust mites demonstrates reversible evolution
- New study validates longevity pathway: Findings identify universal mechanism for activating anti-aging pathway
- Star-shaped glial cells act as the brain's 'motherboard'
- When food is scarce, a smaller brain will do
| Genetic study of house dust mites demonstrates reversible evolution Posted: 08 Mar 2013 06:34 AM PST In evolutionary biology, Dollo's law states that evolution is unidirectional and irreversible. But this "law" is not universally accepted and is the topic of heated debate among biologists. Now a research team has used a large-scale genetic study of the lowly house dust mite to uncover an example of reversible evolution that appears to violate Dollo's law.  |
| Posted: 07 Mar 2013 11:52 AM PST A new study demonstrates what researchers consider conclusive evidence that the red wine compound resveratrol directly activates a protein that promotes health and longevity in animal models. What's more, the researchers have uncovered the molecular mechanism for this interaction, and show that a class of more potent drugs currently in clinical trials act in a similar fashion.  |
| Star-shaped glial cells act as the brain's 'motherboard' Posted: 07 Mar 2013 09:47 AM PST Researchers have found that the star-shape glial cells that act as the brain's "motherboard" also connect different neuronal circuits in various regions of the brain. The research introduces a new framework for making sense of brain communications, aiding our understanding of the diseases and disorders that impact the brain.  |
| When food is scarce, a smaller brain will do Posted: 07 Mar 2013 09:39 AM PST A new study explains how young brains are protected when nutrition is poor. The findings reveal a coping strategy for producing a fully functional, if smaller, brain. The discovery, which was made in larval flies, shows the brain as an incredibly adaptable organ and may have implications for understanding the developing human brain as well, the researchers say.  |
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