ScienceDaily: Top News

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• Simplifying genetic codes to look back in time
• Diagnostic test shows potential to noninvasively identify significant coronary artery disease
• Targeted oxidation-blocker prevents secondary damage after traumatic brain injury, study suggests
• Scientists identify new gene that influences survival in amyotrophic lateral sclerosis
• 'Cyborg' tissues: Merging engineered human tissues with bio-compatible nanoscale wires
• Compound discovered that boosts effect of vaccines against HIV and flu
• Sleep learning is possible: Associations formed when asleep remained intact when awake
• New wave of technologies possible after ground-breaking analysis tool for nanometer devices developed
• Genomic variant that increases risk of brain tumors discovered
• Sudden death less likely in exercise related cardiac arrests
• Novel blood test predicts sudden death risk patients who would benefit from ICDs
• Women with acute heart failure have similar in-hospital mortality to men but are less treated
• Obesity triggers atrial fibrillation in fertile women, study suggests
• Global study suggests need for strategies to combat unhealthy lifestyles among the poor and the rich
• New device to remove stroke-causing blood clots proves better than standard tool
• Manipulating the microbiome could help manage weight
• Controlling gene expression: How chromatin remodelers block a histone pass

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.

Diagnostic test shows potential to noninvasively identify significant coronary artery disease Posted: 26 Aug 2012 11:36 AM PDT Among patients with suspected or known coronary artery disease, use of a method that applies computational fluid dynamics to derive certain data from computed tomographic (CT) angiography demonstrated improved diagnostic accuracy vs. CT angiography alone for the diagnosis of ischemia.

Targeted oxidation-blocker prevents secondary damage after traumatic brain injury, study suggests Posted: 26 Aug 2012 11:36 AM PDT Treatment with an agent that blocks the oxidation of an important component of the mitochondrial membrane prevented the secondary damage of severe traumatic brain injury and preserved function that would otherwise have been impaired, according to a research team.

Scientists identify new gene that influences survival in amyotrophic lateral sclerosis Posted: 26 Aug 2012 11:36 AM PDT Scientists have discovered a gene that influences survival time in amyotrophic lateral sclerosis (ALS, also known as Lou Gehrig's disease).

'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.

Compound discovered that boosts effect of vaccines against HIV and flu Posted: 26 Aug 2012 11:35 AM PDT Scientists have discovered a compound that greatly boosts the effect of vaccines against viruses like flu, HIV and herpes in mice.

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.

New wave of technologies possible after ground-breaking analysis tool for nanometer devices developed Posted: 26 Aug 2012 11:35 AM PDT A revolutionary tool has enabled researchers to analyze nanometer-sized devices without destroying them for the first time, opening the door to a new wave of technologies.

Genomic variant that increases risk of brain tumors discovered Posted: 26 Aug 2012 11:33 AM PDT People who carry a "G" instead of an "A" at a specific spot in their genetic code have roughly a six-fold higher risk of developing certain types of brain tumors a study has found.

Sudden death less likely in exercise related cardiac arrests Posted: 26 Aug 2012 11:33 AM PDT People who have a cardiac arrest during or shortly after exercise are three times more likely to survive than those who have a cardiac arrest that is not exercise related, according to new research.

Novel blood test predicts sudden death risk patients who would benefit from ICDs Posted: 26 Aug 2012 11:33 AM PDT A novel blood test that predicts sudden death risk in heart failure patients is set to help physicians decide which patients would benefit from implantable cardioverter defibrillators (ICDs). Approximately 5 million patients in the US have heart failure, a condition where the heart is unable to pump blood adequately, and nearly 550,000 people are diagnosed annually. Heart failure is the single most common cause of admission to hospitals in the US.

Women with acute heart failure have similar in-hospital mortality to men but are less treated Posted: 26 Aug 2012 11:30 AM PDT Women with acute heart failure have similar in-hospital mortality to men but are less treated in the real world, according to new results.

Obesity triggers atrial fibrillation in fertile women, study suggests Posted: 26 Aug 2012 11:30 AM PDT Obesity triggers atrial fibrillation in fertile women, according to new research.

Global study suggests need for strategies to combat unhealthy lifestyles among the poor and the rich Posted: 26 Aug 2012 11:28 AM PDT The Prospective Urban Rural Epidemiology (PURE) study involving 154,000 individuals from 628 communities reported on the patterns of diet, physical activity and smoking.

New device to remove stroke-causing blood clots proves better than standard tool Posted: 26 Aug 2012 11:28 AM PDT Stroke is the fourth leading cause of death and a common cause of long-term disability in the United States, but doctors have very few proven treatment methods. Now a new device that mechanically removes stroke-causing clots from the brain is being hailed as a game-changer.

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."

Controlling gene expression: How chromatin remodelers block a histone pass Posted: 26 Aug 2012 11:28 AM PDT Researchers show how repressor proteins ensure accurate gene expression by thwarting histone exchange.

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