ScienceDaily: Top Science News

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• Simplifying genetic codes to look back in time
• 'Cyborg' tissues: Merging engineered human tissues with bio-compatible nanoscale wires
• Sleep learning is possible: Associations formed when asleep remained intact when awake
• Manipulating the microbiome could help manage weight

Simplifying genetic codes to look back in time Posted: 26 Aug 2012 02:04 PM PDT Researchers show simpler versions of the universal genetic code can still function in protein synthesis. In addition to understanding early primordial organisms, the research could lead to applications preventing non-natural genetically modified materials from entering the natural world.

'Cyborg' tissues: Merging engineered human tissues with bio-compatible nanoscale wires Posted: 26 Aug 2012 11:36 AM PDT Scientists have, for the first, time created a type of "cyborg" tissue by embedding a three-dimensional network of functional, bio-compatible nanoscale wires into engineered human tissues.

Sleep learning is possible: Associations formed when asleep remained intact when awake Posted: 26 Aug 2012 11:35 AM PDT Is sleep learning possible? A new study has found that if certain odors are presented after tones during sleep, people will start sniffing when they hear the tones alone -- even when no odor is present -- both during sleep and, later, when awake. In other words, people can learn new information while they sleep, and this can unconsciously modify their waking behavior.

Manipulating the microbiome could help manage weight Posted: 26 Aug 2012 11:28 AM PDT Vaccines and antibiotics may someday join caloric restriction or bariatric surgery as a way to regulate weight gain, according to a new study focused on the interactions between diet, the bacteria that live in the bowel, and the immune system. "Diet-induced obesity depends not just on calories ingested but also on the host's microbiome," said the study's senior author. For most people, he said, "host digestion is not completely efficient, but changes in the gut flora can raise or lower digestive efficiency."

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