ScienceDaily: Latest Science News

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• Attacking bowel cancer on two fronts
• New approach to leukemia chemotherapy -- is a cure in sight?
• Greater versatility of adult stem cells thanks to 3-D lab experiments
• Clinical trial success for Crohn's disease cell therapy
• Fast-recharge, lithium-ion battery could be perfect for electric cars
• First report on bioaccumulation and processing of antibacterial ingredient TCC in fish
• Paid access to journal articles not a significant barrier for scientists
• Frequent CT scanning for testicular cancer surveillance associated with secondary malignancies
• Rare discovery of plant genus
• Cholesterol regulator plays key role in development of liver scarring, cirrhosis
• Declining rainfall is a major influence for migrating birds
• Having trouble achieving work-life balance? Knowing your strategies is key
• Hepatitis C drug may revolutionize treatment
• Molecular disease model for melanoma
• Diet-exercise combo best for obese seniors
• Combination of two hormones increases height in girls with Turner syndrome
• Brain scientists offer medical educators tips on the neurobiology of learning
• Possible clues to tamoxifen resistance in breast cancer patients
• Death anxiety prompts people to believe in intelligent design, reject evolution, study suggests
• Astrophysicist: White dwarfs could be fertile ground for other Earths
• Killer whales in Antarctic waters prefer weddell seals over other prey
• A woman's blues bring a relationship down
• Hidden elm population may hold genes to combat Dutch elm disease
• Bariatric surgery reduces long-term cardiovascular risk in diabetes patients
• Promising new treatment for childhood leukemia
• Newly discovered natural arch in Afghanistan one of world's largest
• No impact of age on outcome in chronic myeloid leukemia patients treated with imatinib, study suggests
• US earthquake resilience needs strengthening, says new report
• Being in a good mood may lead to poor memory
• 54 beneficial compounds discovered in pure maple syrup
• Physicists detect low-level radioactivity from Japan arriving in Seattle
• Aastronomers take a look inside red giant stars
• Making the leap to whole-cell simulations
• Lack of motivation, equipment main barriers for exercise for boys
• Warm water causes extra-cold winters in northeastern North America and northeastern Asia
• Studies track protein relevant to stem cells, cancer
• Sensory wiring for smells varies among individuals
• Scientists unlock mystery of how the 22nd amino acid is produced
• Common yellow lab dye profoundly extends lifespan in healthy nematodes, and slows Alzheimer's disease-like pathology in worms
• Links between asthma, smoking and nicotine dependence explored in new study
• New clinical practice guidelines developed for juvenile idiopathic arthritis
• Kidney cancer advance: Genetic pathways could be used to starve cancer cells selectively
• Alzheimer's-like brain changes found in cognitively normal elders with amyloid plaques
• Allowing people with HIV to be organ donors could save lives of HIV-positive patients with kidney or liver failure
• Study finds surprising gender differences related to sexual harassment
• Scientists reach beyond the clouds with a mobile phone app to explore the outer atmosphere
• Research into poison curare may lead to medication against tobacco addiction
• Molar power: Milk teeth wanted for stem cell palace art project
• Protein from bones of 600,000-year-old mammoth extracted successfully
• Proboscis monkeys regurgitating their food, like cows
• Educational development stunted by teenage fatherhood
• Battling butterflies: Motivation determines the winner
• Prevention is better than cure for zoonotic diseases
• Physicists rotate beams of light
• One in three women suffer post-sex blues
• Blocking carbon dioxide fixation in bacteria increases biofuel production
• 'Spincasting' holds promise for creation of nanoparticle thin films
• Mucus: Fighting the war against pollutants
• Singing lowers patient's blood pressure prior to surgery, case study reports
• New method to localize the epileptic focus in severe epilepsy

Attacking bowel cancer on two fronts Posted: 30 Mar 2011 06:47 PM PDT Stem cells in the intestine, which when they mutate can lead to bowel cancers, might also be grown into transplant tissues to combat the effects of those same cancers, researchers say.

New approach to leukemia chemotherapy -- is a cure in sight? Posted: 30 Mar 2011 06:47 PM PDT Medical researchers have developed a brand new approach to treating chronic myeloid leukemia in which a small number of cancer cells persist despite effective therapy thus preventing cure.

Greater versatility of adult stem cells thanks to 3-D lab experiments Posted: 30 Mar 2011 06:47 PM PDT A type of adult stem cell is now proving itself more versatile for research and therapies thanks to revolutionary 3-D experiments. These cells have already shown great promise for repairing damaged bone and cartilage but until now have been fairly limited in the types of cells they can form in the laboratory.

Clinical trial success for Crohn's disease cell therapy Posted: 30 Mar 2011 06:47 PM PDT Scientists have developed a new cell therapy for chronic inflammatory conditions such as Crohn's disease. Patient's own blood cells are used to produce a type of cell -- Type 1 T regulatory lymphocyte -- that can reduce the extent of the disease.

Fast-recharge, lithium-ion battery could be perfect for electric cars Posted: 30 Mar 2011 06:47 PM PDT The next-generation battery, like next-generation TV, may be 3-D, scientists say. They have described a new lithium-ion battery, already available in a prototype version, with a three-dimensional interior architecture that could be perfect for the electric cars now appearing in auto dealer showrooms.

First report on bioaccumulation and processing of antibacterial ingredient TCC in fish Posted: 30 Mar 2011 06:47 PM PDT In the first report on the uptake and internal processing of triclocarban (TCC) in fish, scientists have reported strong evidence that TCC -- the source of environmental health concerns because of its potential endocrine-disrupting effects -- has a "strong" tendency to bioaccumulate in fish.

Paid access to journal articles not a significant barrier for scientists Posted: 30 Mar 2011 04:25 PM PDT They say the best things in life are free, but when it comes to online scientific publishing, a new research report suggests otherwise. The report shows that free access to scientific journal articles leads to increases in downloads, but not to increases in citations (their use), a key factor used in scientific publishing to assess a research article's relative importance and value.

Frequent CT scanning for testicular cancer surveillance associated with secondary malignancies Posted: 30 Mar 2011 04:25 PM PDT Cancer researchers have found that older men with early-stage testicular cancer who opt for surveillance with regular CT scans over lymph node removal are at greater risk for secondary cancers.

Rare discovery of plant genus Posted: 30 Mar 2011 04:25 PM PDT Usually, when a new species is discovered it is associated with one species. It is rare to find two new species belonging to the same new genus. Yasunia is one of those rare cases.

Cholesterol regulator plays key role in development of liver scarring, cirrhosis Posted: 30 Mar 2011 04:25 PM PDT Researchers have demonstrated that a key regulator of cholesterol and fat metabolism in the liver also plays an important role in the development of liver fibrosis -- the build-up of collagen scar tissue that can develop into cirrhosis.

Declining rainfall is a major influence for migrating birds Posted: 30 Mar 2011 04:25 PM PDT Instinct and the annual increase of daylight hours have long been thought to be the triggers for birds to begin their spring migration. Scientists, however, have now found that that may not be the case. Researchers have focused on how warming trends in temperate breeding areas disrupt the sensitive ecology of migratory birds. This new research shows that changes in rainfall on the tropical wintering grounds could be equally disruptive.

Having trouble achieving work-life balance? Knowing your strategies is key Posted: 30 Mar 2011 04:25 PM PDT Essays are being written, final exams are looming and classes are reaching their busy conclusion. With conflicting demands from work, home and the classroom, this hectic time of year can be filled with stress. But according to new research, a little self-reflection could do us all a world of good.

Hepatitis C drug may revolutionize treatment Posted: 30 Mar 2011 04:22 PM PDT The drug boceprevir helps cure hard-to-treat hepatitis C, offering a brighter outlook for patients who have not responded to standard treatment.

Molecular disease model for melanoma Posted: 30 Mar 2011 04:22 PM PDT A new molecular disease model of melanoma classifies the disease into molecular subtypes, rather than traditional histological or cellular subtypes, and describes treatment guidelines for each subtype, including specific assays, drugs, and clinical trials.

Diet-exercise combo best for obese seniors Posted: 30 Mar 2011 04:22 PM PDT For obese seniors, dieting and exercise together are more effective at improving physical performance and reducing frailty than either alone. Although weight loss alone and exercise alone improve physical function, neither is as effective as diet and exercise together, which improved physical performance in seniors by 21 percent.

Combination of two hormones increases height in girls with Turner syndrome Posted: 30 Mar 2011 04:22 PM PDT Giving girls with Turner syndrome low doses of estrogen, as well as growth hormone, years before the onset of puberty, increases their height and offers a wealth of other benefits, say a team of researchers.

Brain scientists offer medical educators tips on the neurobiology of learning Posted: 30 Mar 2011 04:22 PM PDT A new article connects research on how the brain learns to how to incorporate this understanding into real world education, particularly the education of doctors.

Possible clues to tamoxifen resistance in breast cancer patients Posted: 30 Mar 2011 04:22 PM PDT Breast cancer patients who become resistant to tamoxifen may have low levels of a protein called Rho GDI-alpha, according to a new study.

Death anxiety prompts people to believe in intelligent design, reject evolution, study suggests Posted: 30 Mar 2011 04:22 PM PDT Researchers have found that people's death anxiety can influence them to support theories of intelligent design and reject evolutionary theory.

Astrophysicist: White dwarfs could be fertile ground for other Earths Posted: 30 Mar 2011 12:08 PM PDT Hundreds of planets have been discovered outside the solar system in the last decade. Now an astrophysicist is suggesting that the best place to look for planets that could support life is around dying stars called white dwarfs.

Killer whales in Antarctic waters prefer weddell seals over other prey Posted: 30 Mar 2011 12:08 PM PDT Scientists studying the cooperative hunting behavior of killer whales in Antarctic waters observed the animals favoring one type of seal over all other available food sources, according to a new study.

A woman's blues bring a relationship down Posted: 30 Mar 2011 11:23 AM PDT Depression erodes intimate relationships. A depressed person can be withdrawn, needy, or hostile -- and give little back. But there's another way that depression isolates partners from each other. It chips away at the ability to perceive the others' thoughts and feelings. It impairs what psychologists call "empathic accuracy" -- and that can exacerbate alienation, depression, and the cycle by which they feed each other.

Hidden elm population may hold genes to combat Dutch elm disease Posted: 30 Mar 2011 11:23 AM PDT Scientists may have discovered "the map to El Dorado" for the American elm -- a previously hidden population of elms that carry genes for resistance to Dutch elm disease. The disease kills individual branches and eventually the entire tree within one to several years.

Bariatric surgery reduces long-term cardiovascular risk in diabetes patients Posted: 30 Mar 2011 11:23 AM PDT In the longest study of its kind, bariatric surgery has been shown to reduce the risk of heart attack and stroke in patients with diabetes. These results and other groundbreaking research were presented at the 2nd World Congress on Interventional Therapies for Type 2 Diabetes, hosted by NewYork-Presbyterian Hospital and Weill Cornell Medical College.

Promising new treatment for childhood leukemia Posted: 30 Mar 2011 11:23 AM PDT An experimental drug lessens symptoms of a rare form of childhood leukemia and offers significant insight into the cellular development of the disease, according to new findings. The mouse model research could spearhead the development of new leukemia therapies and paves the way for future clinical trials in humans.

Newly discovered natural arch in Afghanistan one of world's largest Posted: 30 Mar 2011 10:13 AM PDT Researchers from the Wildlife Conservation Society have stumbled upon a geological colossus in a remote corner of Afghanistan: a natural stone arch spanning more than 200 feet across its base.

No impact of age on outcome in chronic myeloid leukemia patients treated with imatinib, study suggests Posted: 30 Mar 2011 10:13 AM PDT While the median age at diagnosis for chronic myeloid leukemia (CML) is over 60 years old, limited data are available about the long-term outcome for older patients treated with imatinib, the standard first-line therapy used to treat CML. New results, however, reveal that age does not affect response to imatinib and overall survival is similar in older and younger patients treated with the drug.

US earthquake resilience needs strengthening, says new report Posted: 30 Mar 2011 10:13 AM PDT A new report presents a 20-year road map for increasing US resilience to earthquakes, including a major earthquake that could strike a highly populated area. The report was mostly written prior to the March 11 earthquake in Japan, but the committee of experts who authored it noted that the Japanese experience is a reminder of the devastation that can occur even in a country acknowledged as a leader in implementing earthquake-resilience measures.

Being in a good mood may lead to poor memory Posted: 30 Mar 2011 10:13 AM PDT Most people have had trouble remembering something they just heard. Now, a researcher found that forgetfulness may have something to do with being in a good mood. She found that being in a good mood decreases your working memory capacity.

54 beneficial compounds discovered in pure maple syrup Posted: 30 Mar 2011 10:13 AM PDT Researchers have discovered 34 new beneficial compounds in pure maple syrup and confirmed that 20 compounds discovered last year in preliminary research play a key role in human health.

Physicists detect low-level radioactivity from Japan arriving in Seattle Posted: 30 Mar 2011 10:13 AM PDT Physicists are detecting radioactivity arriving in Seattle from Japanese nuclear reactors damaged in a tsunami following a mammoth earthquake, but the levels are far below what would pose a threat to human health.

Aastronomers take a look inside red giant stars Posted: 30 Mar 2011 10:13 AM PDT Astronomers have used data from NASA's Kepler spacecraft to see into the core of red giant stars. The scientists said the discovery will help astronomers learn more about red giants. Our sun will evolve into a red giant in about 5 billion years.

Making the leap to whole-cell simulations Posted: 30 Mar 2011 10:13 AM PDT Researchers have built a computer model of the crowded interior of a bacterial cell that -- in a test of its response to sugar in its environment -- accurately simulates the behavior of living cells.

Lack of motivation, equipment main barriers for exercise for boys Posted: 30 Mar 2011 10:13 AM PDT A lack of equipment and venues -- and a lack of motivation even if those were available -- are the main barriers to physical activity for adolescent boys, according to new research.

Warm water causes extra-cold winters in northeastern North America and northeastern Asia Posted: 30 Mar 2011 10:13 AM PDT Average winter temperatures in northern Europe are at least 10 degrees Fahrenheit warmer than similar latitudes on the northeastern coast of the United States and the eastern coast of Canada. The same phenomenon happens over the Pacific, where winters on the northeastern coast of Asia are colder than in the Pacific Northwest. Researchers have now found a mechanism that helps explain these chillier winters -- and the culprit is warm water off the eastern coasts of these continents.

Studies track protein relevant to stem cells, cancer Posted: 30 Mar 2011 10:13 AM PDT Scientists have taken a broad look at the Tet 1 protein's location in the mouse genome, and found a surprising dual function. They are offering the first genome-wide location of the protein and its product, 5-hydroxymethylcytosine -- dubbed the "sixth base" of DNA.

Sensory wiring for smells varies among individuals Posted: 30 Mar 2011 10:13 AM PDT If, as Shakespeare's Juliet declared, a rose by any other name smells as sweet -- to you and to me and to anyone else who sniffs it -- then one might assume that our odor-sensing nerve cells are all wired in the same way. Alas, they are not, according to a new study.

Scientists unlock mystery of how the 22nd amino acid is produced Posted: 30 Mar 2011 10:13 AM PDT The most recently discovered amino acid, pyrrolysine, is produced by a series of just three chemical reactions with a single precursor -- the amino acid lysine, according to new research. Scientists have used mass spectrometry and a series of experiments to discover how cells make the amino acid, a process that until now had been unknown.

Common yellow lab dye profoundly extends lifespan in healthy nematodes, and slows Alzheimer's disease-like pathology in worms Posted: 30 Mar 2011 10:12 AM PDT Basic Yellow 1, a dye used in neuroscience labs around the world to detect damaged protein in Alzheimer's disease, is a wonder drug for nematode worms. Thioflavin T extended lifespan in healthy worms by more than 50 percent and slowed the disease process in worms bred to mimic aspects of Alzheimer's. The research -- involving protein homeostasis -- could open new ways to intervene in aging and age-related disease.

Links between asthma, smoking and nicotine dependence explored in new study Posted: 30 Mar 2011 08:13 AM PDT New research suggests that being diagnosed with asthma is significantly associated with a greater risk for a lifetime history of daily smoking and nicotine dependence.

New clinical practice guidelines developed for juvenile idiopathic arthritis Posted: 30 Mar 2011 08:13 AM PDT The American College of Rheumatology has developed new guidelines for starting and monitoring treatments for children with juvenile idiopathic arthritis. These are the first JIA guidelines endorsed by the ACR, with the goal of broad acceptance within the rheumatology community.

Kidney cancer advance: Genetic pathways could be used to starve cancer cells selectively Posted: 30 Mar 2011 08:13 AM PDT Researchers have discovered genetic pathways to starve selectively kidney cancer cells. Two separate studies indicate that both rare and common cases of kidney cancer may be susceptible to a new class of drugs that inhibits cancer cells from generating the energy needed to survive.

Alzheimer's-like brain changes found in cognitively normal elders with amyloid plaques Posted: 30 Mar 2011 08:13 AM PDT Researchers using two brain-imaging technologies have found that apparently normal older individuals with brain deposits of amyloid beta -- the primary constituent of the plaques found in the brains of Alzheimer's disease patients -- also had changes in brain structure similar to those seen in Alzheimer's patients. Results of the study may someday lead to identification of candidates for preventive therapies.

Allowing people with HIV to be organ donors could save lives of HIV-positive patients with kidney or liver failure Posted: 30 Mar 2011 07:12 AM PDT If the U.S. Congress reversed its ban on allowing people with HIV to be organ donors after their death, roughly 500 HIV-positive patients with kidney or liver failure each year could get transplants within months, rather than the years they currently wait on the list, new research suggests.

Study finds surprising gender differences related to sexual harassment Posted: 30 Mar 2011 07:12 AM PDT Sexual harassment may have become so commonplace for women that they have built up resistance to harassing behavior they consider merely "bothersome," suggests a provocative new study.

Scientists reach beyond the clouds with a mobile phone app to explore the outer atmosphere Posted: 30 Mar 2011 07:10 AM PDT Engineering scientists have reached above the clouds in a first-of-its-kind experiment to develop new technologies that probe the stratosphere using an unmanned vehicle.

Research into poison curare may lead to medication against tobacco addiction Posted: 30 Mar 2011 07:10 AM PDT For the first time, three-dimensional images of protein being paralyzed by the poison curare have been made. Curare has a paralyzing effect and the poison's active chemical component is used in lung surgery. To date, however, scientists did not know how exactly it works. 3D images have now opened new perspectives for the development of medications against sleeping disorders, tobacco addiction and muscle diseases.

Molar power: Milk teeth wanted for stem cell palace art project Posted: 30 Mar 2011 07:10 AM PDT Children across Britain are being asked to donate their milk teeth to create "Palaces", a spectacular glittering sculpture made from crystal resin and decorated with retired pearly whites. The project is a part of an art-science collaboration that aims to inspire the nation with the regenerative potential of adult stem cells.

Protein from bones of 600,000-year-old mammoth extracted successfully Posted: 30 Mar 2011 07:10 AM PDT Researchers from the University of York and Manchester have successfully extracted protein from the bones of a 600,000-year-old mammoth, paving the way for the identification of ancient fossils.

Proboscis monkeys regurgitating their food, like cows Posted: 30 Mar 2011 06:43 AM PDT A previously unknown behavior pattern is only observed in a large animal very rarely – which is why new videos are nothing short of a sensation: They show proboscis monkeys regurgitating, chewing and gulping back down food they've swallowed – just like ruminating cows.

Educational development stunted by teenage fatherhood Posted: 30 Mar 2011 06:43 AM PDT Public interest in the issue of teenage childbearing has recently increased, largely due to increases in both the teen pregnancy rate and the teen birth rate. A new study examines the negative educational and economic outcomes of teenage fatherhood, a topic far less researched than teenage motherhood.

Battling butterflies: Motivation determines the winner Posted: 30 Mar 2011 06:41 AM PDT In many butterfly species the males can be seen fighting intensively for territory. What determines who wins is something that has long eluded researchers. New research suggests that the victor is the most highly motivated of the combatants.

Prevention is better than cure for zoonotic diseases Posted: 30 Mar 2011 06:41 AM PDT The risk of contracting zoonotic diseases that pass from animals to humans appears to be on the increase in the UK, but encouraging countryside users to take simple precautions to protect themselves is the best response, according to new research.

Physicists rotate beams of light Posted: 30 Mar 2011 06:41 AM PDT Controlling the rotation of light – this amazing feat was accomplished by means of a ultra thin semiconductor. This can be used to create a transistor that works with light instead of electrical current.

One in three women suffer post-sex blues Posted: 30 Mar 2011 06:41 AM PDT Post-sex blues is not a sexual behavior commonly discussed, but a new study of more than 200 young women has found one in three (32.9 percent) had experienced the phenomenon at some point.

Blocking carbon dioxide fixation in bacteria increases biofuel production Posted: 30 Mar 2011 06:40 AM PDT Reducing the ability of certain bacteria to fix carbon dioxide can greatly increase their production of hydrogen gas that can be used as a biofuel, researchers report.

'Spincasting' holds promise for creation of nanoparticle thin films Posted: 30 Mar 2011 06:40 AM PDT Researchers have investigated the viability of a technique called "spincasting" for creating thin films of nanoparticles on an underlying substrate -- an important step in the creation of materials with a variety of uses, from optics to electronics.

Mucus: Fighting the war against pollutants Posted: 30 Mar 2011 06:40 AM PDT Researchers have found that mucus, which was thought to protect our bodies against harmful pollutants, in fact may leave our bodies more vulnerable to them. But the discovery may prove useful in enabling some drugs to enter cells and treat diseases like cancer.

Singing lowers patient's blood pressure prior to surgery, case study reports Posted: 30 Mar 2011 06:40 AM PDT Doctors report that singing reduced the blood pressure of a 76-year-old woman who had experienced severe preoperative hypertension prior to total knee replacement surgery for osteoarthritis. While the patient was unresponsive to aggressive pharmacologic interventions, the woman's blood pressure dropped dramatically when she sang several religious songs.

New method to localize the epileptic focus in severe epilepsy Posted: 30 Mar 2011 06:40 AM PDT Medical researchers have started to utilize stereo-EEG method for localizing the epileptic focus in severe epilepsy for epilepsy surgery purposes. They are getting ready to introduce the so-called deep brain stimulation therapy in the treatment of epilepsy.

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