ScienceDaily: Latest Science News

Decoding Mysterious Green Glow Of The Sea Posted: 05 Apr 2009 02:00 PM PDT Researchers have uncovered key clues about the bioluminescent worms that produce the green glow and the biological mechanisms behind their light production.

Human Embryonic Stem Cells May Revolutionize Treatment of Oral Disease Posted: 05 Apr 2009 02:00 PM PDT Human embryonic stem cells provide a potentially unlimited source of oral mucosal tissues that may revolutionize the treatment of oral diseases. When fully exploited in the future, this source of cells will be able to produce functional tissues to treat a broad variety of oral diseases.

Microbes In Mud Flats Clean Up Oil Spill Chemicals Posted: 05 Apr 2009 02:00 PM PDT Micro-organisms occurring naturally in coastal mudflats have an essential role to play in cleaning up pollution by breaking down petrochemical residues. Research reveals essential differences in the speed of degradation of the chemicals depending on whether or not oxygen is present.

Health Benefits, Consequences Of Folic Acid Dependent On Circumstances Posted: 05 Apr 2009 02:00 PM PDT For the past several decades, evidence has shown that greater dietary intake of the B-vitamin, folate, offers protection against the development of certain common cancers and reduces neural tube defects in newborns, opening new avenues for public health interventions that have a great impact on health. However, folate's central role as an essential factor in DNA synthesis also means that abundant availability of the vitamin can enhance the development of pre-cancerous and cancerous tumors.

Little House On The Moon? Robot Being Created For First Moon Construction Project Posted: 05 Apr 2009 02:00 PM PDT Scientists are planning on sending a robot to the moon to construct a house. The House on the Moon is a project that aims to put a little read cottage on the moon as a symbol of what one man can achieve. The robot will roll out a little cabin from a space rocket, find a stable vacant lot, and erect the planet's first building.

Childhood Abuse Associated With Onset Of Psychosis In Women Posted: 05 Apr 2009 02:00 PM PDT Researchers have published new research which indicates that women with severe mental illness are more likely to have been abused in childhood that the general population. But the same association has not been found in men. The researchers believe their findings point to differences in the way boys and girls respond to traumatic and upsetting experiences.

Straw Bale House Survives Violent Shaking At Earthquake Lab Posted: 05 Apr 2009 08:00 AM PDT It huffed and puffed, but the 82-ton-force, earthquake-simulation shake table could not knock down the straw house designed and built by University of Nevada, Reno alumna and civil engineer Darcey Donovan. The full-scale, 14-by-14-foot straw house, complete with gravel foundation and clay plaster walls, the way she builds them in Pakistan, was subjected to 200 percent more acceleration/shaking than was recorded at the 1994 Northridge, Calif. earthquake, the largest measured ground acceleration in the world.

Hormone Prolactin Reduces Fat Metabolism Posted: 05 Apr 2009 08:00 AM PDT The hormone prolactin is necessary for the production of breast milk, but it also affects adipose (fatty) tissue and the body's metabolism. Raised prolactin levels in a woman who is not pregnant or breast feeding reduces lipid (fat) metabolism.

Omega-3 Kills Cancer Cells Posted: 05 Apr 2009 08:00 AM PDT Docosahexanoic acid, an omega-3 fatty acid found in fish oils, has been shown to reduce the size of tumors and enhance the positive effects of the chemotherapy drug cisplatin, while limiting its harmful side effects. The rat experiments provide some support for the plethora of health benefits often ascribed to omega-3 acids.

New Strategy Improves Stem Cell Recruitment, Heart Function And Survival After Heart Injury Posted: 05 Apr 2009 08:00 AM PDT A new study in mice shows that a dual therapy can lead to generation of new blood vessels and improved cardiac function following a heart attack. The research provides an explanation for the ineffectiveness of current stem-cell-mobilizing therapies and may drive design of future regenerative therapies for the heart.

Astronauts May Need More Intense Workouts To Maintain Muscle Fitness In Space Posted: 05 Apr 2009 08:00 AM PDT Astronauts need to modify their workouts to avoid extensive muscle loss during missions onboard the International Space Station, according to new research.

Humans May Be Losers If Technological Nature Replaces The Real Thing, Psychologists Warn Posted: 05 Apr 2009 08:00 AM PDT Modern technology increasingly is encroaching into human connections with the natural world and psychologists believe this intrusion may emerge as one of the central psychological problems of our times.

Young Pulsar Shows Its Hand Posted: 05 Apr 2009 02:00 AM PDT A small, dense object only twelve miles in diameter is responsible for a beautiful X-ray nebula that spans 150 light years. At the center of a new image made by NASA's Chandra X-ray Observatory is a very young and powerful pulsar, known as PSR B1509-58, or B1509 for short. This image is being unveiled as part of the "Around the World in 80 Telescopes" webcast as part of the International Year of Astronomy 2009.

Cancer Stem Cells Generated By Cancer Outgrowth Posted: 05 Apr 2009 02:00 AM PDT Scientists have discovered that growing mouse skin cells in spheres can lead to generation of cells with properties of cancer stem cells, even without genetic manipulation of stem cell genes. This unexpected finding provides a potential pathway for generation of cancer stem cells from differentiated cells and may even eventually lead to safer strategies for creation of induced pluripotent stem cells for use in regenerative therapies.

Nutritious New Low-sugar Juice Targeted For Diabetics, Individuals With High Blood Sugar Posted: 05 Apr 2009 02:00 AM PDT Scientists in China are reporting development of a low-calorie, low-sugar vegetable juice custom-designed for millions of individuals with diabetes and pre-diabetic conditions that involve abnormally high blood sugar.

New Test For Deadly Fungal Infection In Patients With Damaged Immune Systems Posted: 05 Apr 2009 02:00 AM PDT A quicker, cheaper and more accurate test for deadly Aspergillus fumigatus fungal infections in patients with damaged or suppressed immune systems was recently developed.

Researchers Enhance Spam Call Filtering Posted: 05 Apr 2009 02:00 AM PDT Researchers are developing a new system for blocking spam calls in a flexible way. Spam calls (junk calls or Spam for Internet Telephony, SPIT) are unwanted calls often made by an automat playing a recorded advertisement. As free Internet-based telephony is rapidly gaining popularity over traditional charged calls, the risk of spam calls is increasing.

Milkshakes Are Medicine For Anorexic Teens In Family-based Outpatient Therapy Posted: 05 Apr 2009 02:00 AM PDT Getting your teenager to drink a chocolate milkshake isn't something most parents need to worry about. But this is just the approach used in one treatment for anorexia nervosa. Known as Behavioral Family Therapy, or the Maudsley Approach, parents are called up on to supervise the eating habits of their anorexic child, feeding them high-calorie meals like milkshakes and macaroni and cheese until they regain a healthy weight.

Nicotine May Have More Profound Impact Than Previously Thought Posted: 04 Apr 2009 08:00 PM PDT Researchers have identified 55 proteins that interact with a receptor in mice known previously to bind with nicotine. The findings could have broad implications for future treatments for nicotine addiction, the search for new drug targets and treatments for diseases such as schizophrenia.

Lead In The Blood Increases Women's Mortality Posted: 04 Apr 2009 08:00 PM PDT Lead concentrations in the blood are associated with an increased risk of death from coronary heart diseases. A study of 533 American women has shown that those with blood lead concentrations above a certain amount were three times more likely to die of coronary heart diseases.

'Green Chemistry' Could Ease Manufacture, Boost Usefulness Of Cancer Drug Posted: 04 Apr 2009 08:00 PM PDT New research is paving the way for potentially cleaner, more efficient production of cancer-fighting paclitaxel -- better known as the blockbuster drug Taxol.

New, More Effective Nisin Antibiotics Combat Superbugs And Food Diseases Posted: 04 Apr 2009 08:00 PM PDT Researchers have used bioengineering to produce a new generation of natural antibiotics that target harmful micro-organisms such as MRSA and the food-borne pathogen, Listeria monocytogenes.

Well-timed Timeout Effective In Wiping Out Fear Memory Response Posted: 04 Apr 2009 08:00 PM PDT Banishing a fear-inducing memory might be a matter of the right timing, according to new research. Scientists have targeted a key time when memories are ripe for change to substantially modify memories of fear into benign memories and to keep them that way.

Process For Making 'Unbreakable' Glass Developed Posted: 04 Apr 2009 02:00 PM PDT Wine glasses that don't shatter? Baby bottles that don't break? Coffee mugs that last generations? All are possible with a new process for strengthening glass and ceramics.

New Evidence Of Periodontal Disease Leading To Gestational Diabetes Posted: 03 Apr 2009 09:00 PM PDT A new study has uncovered evidence that pregnant women with periodontal disease face an increased risk of developing gestational diabetes even if they don't smoke or drink.

Your Oral Health Is Connected To Your Overall Health Posted: 03 Apr 2009 09:00 PM PDT Scientists report new studies on the connection between oral disease and systemic disease. A recurring theme is the relationship between periodontal (gum) disease and infant prematurity, diabetes or stroke.

Resolvins Have Potential To Resolve Periodontal Inflammation And Restore Tissue Health Posted: 03 Apr 2009 09:00 PM PDT Periodontal (gum) disease is a chronic inflammation initiated by bacteria that affect the gums and bone supporting the teeth, and may eventually result in tissue and tooth loss. It is similar to other chronic inflammatory diseases such as arthritis, where inflammation causes tissue damage and is responsible for the disease.

Obesity Associated With Periodontal Disease Posted: 03 Apr 2009 09:00 PM PDT Investigators asked "Is there a prospective association between obesity and periodontal disease?" They observed significant associations between all measures of obesity and periodontal disease when accounting for age, smoking, race, dental profession, physical activity, fruit and vegetable intake, and diabetes status at baseline.

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