ScienceDaily: Top News

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• High fizzy soft drink consumption linked to violence among teens
• Blood vessel mapping reveals four new 'ZIP codes'; Targeting specific addresses could help fight cancer, obesity and other diseases
• Could additives in hot dogs affect incidence of colon cancer?
• High fluid intake appears to reduce bladder cancer risk
• Dietary patterns may be linked to increased colorectal cancer risk in women
• Analgesics use associated with increased risk for renal cell carcinoma
• Coffee consumption associated with decreased risk for basal cell carcinoma
• Increased tanning bed use increases risk for deadly skin cancers
• Math disability linked to problem relating quantities to numerals
• Researchers identify mysterious life forms in the extreme deep sea
• Yoga eases back pain in largest U.S. yoga study to date
• Insomnia could moderately raise your heart attack risk, study suggests
• HPV linked to cardiovascular disease in women
• Water disinfection byproducts linked to adverse health effects
• Perinatal antidepressant stunts brain development in rats; Miswired brain circuitry traced to early exposure
• Study offers clues as to why some patients get infections from cardiac implants
• Ancient cooking pots reveal gradual transition to agriculture
• Biologists unravel how plants synthesize their growth hormone
• Morning UV exposure may be less damaging to the skin
• NASA telescopes help solve ancient supernova mystery
• Harsh discipline fosters dishonesty in young children, study suggests
• Studying depression: Researchers demonstrate rare animal model
• Nanoparticles and their size may not be big issues
• Novel oral treatment for leishmaniasis has potential to save thousands of lives
• Unraveling the mysteries of the natural killer within us
• Study confirms males and females have at least one thing in common: Upregulating X
• Run-off, emissions deliver double whammy to coastal marine creatures, study finds
• Hold your forces: Mechanical stress can help or hinder wound healing depending on time of application
• Gene variant increases risk of kidney disease in African-Americans
• Researchers build transparent, super-stretchy skin-like sensor
• Sleeping sickness drug may provide long-term protection against nonmelanoma skin cancers
• New device measures viscosity of ketchup and cosmetics
• More time outdoors may reduce kids' risk for nearsightedness, research suggests
• Exposure to chemical BPA before birth linked to behavioral, emotional difficulties in girls
• How motherhood behavior is influenced by alterations in brain function
• Bio-engineered protein shows promise as new hemophilia therapy
• Production of biofuel from forests will increase greenhouse gas emissions, study finds
• Laser's precision and simplicity could revolutionize cataract surgery
• Video games used in new treatment that may fix 'lazy eye' in older children

High fizzy soft drink consumption linked to violence among teens Posted: 24 Oct 2011 06:34 PM PDT Teens who drink more than five cans of non-diet, fizzy soft drinks every week are significantly more likely to behave aggressively, new research suggests. This includes carrying a weapon and perpetrating violence against peers and siblings.

Blood vessel mapping reveals four new 'ZIP codes'; Targeting specific addresses could help fight cancer, obesity and other diseases Posted: 24 Oct 2011 02:27 PM PDT A research team has discovered four new "ZIP codes" in their quest to map the vast blood vessel network of the human body. The study brings science one step closer to the goal of using the vascular system to personalize cancer therapy, as well as fight obesity, heart disease and other disorders. Researchers also found that some addresses are shared in vasculature across the board instead of always being organ-specific.

Could additives in hot dogs affect incidence of colon cancer? Posted: 24 Oct 2011 02:26 PM PDT The addition of ascorbate (vitamin C) or its close relative, erythorbate, and the reduced amount of nitrite added in hot dogs, mandated in 1978, have been accompanied by a steep drop in the death rate from colon cancer, according to new research.

High fluid intake appears to reduce bladder cancer risk Posted: 24 Oct 2011 02:26 PM PDT Drinking plenty of fluids may provide men with some protection against bladder cancer, according to a study.

Dietary patterns may be linked to increased colorectal cancer risk in women Posted: 24 Oct 2011 02:26 PM PDT Researchers may have found a specific dietary pattern linked to levels of C-peptide concentrations that increase a woman's risk for colorectal cancer.

Analgesics use associated with increased risk for renal cell carcinoma Posted: 24 Oct 2011 02:26 PM PDT Use of acetaminophen and nonaspirin nonsteroidal anti-inflammatory drugs was associated with a significantly increased risk for developing renal cell carcinoma, according to new research.

Coffee consumption associated with decreased risk for basal cell carcinoma Posted: 24 Oct 2011 02:26 PM PDT Caffeine could be related to an inverse association between basal cell carcinoma risk and consumption of coffee, a study found.

Increased tanning bed use increases risk for deadly skin cancers Posted: 24 Oct 2011 02:26 PM PDT Researchers confirmed an association between tanning bed use and an increased risk for three common skin cancers -- basal cell carcinoma, squamous cell carcinoma and melanoma, according to new research.

Math disability linked to problem relating quantities to numerals Posted: 24 Oct 2011 01:55 PM PDT Children who start elementary school with difficulty associating small exact quantities of items with the printed numerals that represent those quantities are more likely to develop a math-related learning disability than are their peers, according to a new study.

Researchers identify mysterious life forms in the extreme deep sea Posted: 24 Oct 2011 01:50 PM PDT A research expedition has led to the identification of gigantic amoebas at one of the deepest locations on Earth. During a voyage to the Pacific Ocean's Mariana Trench, the deepest region on the planet, researchers deployed untethered free-falling/ascending landers equipped with digital video and lights to search the largely unexplored region. The team documented the deepest known existence of xenophyophores, single-celled animals exclusively found in deep-sea environments.

Yoga eases back pain in largest U.S. yoga study to date Posted: 24 Oct 2011 01:47 PM PDT Yoga classes were linked to better back-related function and diminished symptoms from chronic low back pain in the largest U.S. randomized controlled trial of yoga to date.

Insomnia could moderately raise your heart attack risk, study suggests Posted: 24 Oct 2011 01:47 PM PDT Having trouble sleeping? If so, you could have a moderately higher risk of having a heart attack, according to new research. In a recent study, the risk of heart attack in people with insomnia ranged from 27 percent to 45 percent greater than for people who rarely experienced trouble sleeping.

HPV linked to cardiovascular disease in women Posted: 24 Oct 2011 01:47 PM PDT Women with cancer-causing strains of human papillomavirus may be at increased risk for cardiovascular disease and stroke even when no conventional risk factors for CVD are present.

Water disinfection byproducts linked to adverse health effects Posted: 24 Oct 2011 12:34 PM PDT Scientists report the first identification of a cellular mechanism linked to the toxicity of a major class of drinking water disinfection byproducts. This study suggests a possible connection to adverse health effects, including neurological diseases such as Alzheimer's.

Perinatal antidepressant stunts brain development in rats; Miswired brain circuitry traced to early exposure Posted: 24 Oct 2011 12:34 PM PDT Rats exposed to an antidepressant just before and after birth showed substantial brain abnormalities and behaviors, according to a new study. After receiving citalopram, a serotonin-selective reuptake inhibitor, during this critical period, long-distance connections between the two hemispheres of the brain showed stunted growth and degeneration. The animals also became excessively fearful when faced with new situations and failed to play normally with peers.

Study offers clues as to why some patients get infections from cardiac implants Posted: 24 Oct 2011 12:34 PM PDT New research suggests that some patients develop a potentially deadly blood infection from their implanted cardiac devices because bacterial cells in their bodies have gene mutations that allow them to stick to the devices. Patients with implants can develop infections because of a biofilm of persistent bacterial bugs on the surfaces of their devices.

Ancient cooking pots reveal gradual transition to agriculture Posted: 24 Oct 2011 12:34 PM PDT Humans may have undergone a gradual rather than an abrupt transition from fishing, hunting and gathering to farming, according to a new study of ancient pottery. Researchers in the UK analyzed cooking residues preserved in 133 ceramic vessels from the Western Baltic regions of Northern Europe to establish whether these residues were from terrestrial, marine or freshwater organisms.

Biologists unravel how plants synthesize their growth hormone Posted: 24 Oct 2011 12:34 PM PDT Biologists have succeeded in unraveling, for the first time, the complete chain of biochemical reactions that controls the synthesis of auxin, the hormone that regulates nearly all aspects of plant growth and development.

Morning UV exposure may be less damaging to the skin Posted: 24 Oct 2011 12:33 PM PDT New research suggests that the timing of exposure to UV rays -- early in the morning or later in the afternoon -- can influence the onset of skin cancer.

NASA telescopes help solve ancient supernova mystery Posted: 24 Oct 2011 10:51 AM PDT A mystery that began nearly 2,000 years ago, when Chinese astronomers witnessed what would turn out to be an exploding star in the sky, has been solved. New infrared observations from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer, or WISE, reveal how the first supernova ever recorded occurred and how its shattered remains ultimately spread out to great distances.

Harsh discipline fosters dishonesty in young children, study suggests Posted: 24 Oct 2011 10:30 AM PDT Young children exposed to a harshly punitive school environment are more inclined to lie to conceal their misbehavior than are children from non-punitive schools, a study of three- and four-year-old West African children suggests.

Studying depression: Researchers demonstrate rare animal model Posted: 24 Oct 2011 10:30 AM PDT Scientists have taken a promising step toward creating an animal model for decoding the specific brain circuits involved in depression. By electrically stimulating a brain region central to an animal's primary emotions, the researchers saw rats exhibit a variety of behaviors associated with a depressed, negative mood, or affect.

Nanoparticles and their size may not be big issues Posted: 24 Oct 2011 10:30 AM PDT If you've ever eaten from silverware or worn copper jewelry, you've been around nanoparticles dropped into the environment, say scientists. Using high-powered microscopes, researchers looked at common metal products, finding that we've been exposed for years and concluding that 'size' concerns may be overblown.

Novel oral treatment for leishmaniasis has potential to save thousands of lives Posted: 24 Oct 2011 10:30 AM PDT A tropically stable liquid therapy for leishmaniasis, a disease known as the Baghdad boil, shows a significant decrease in infection after less than a week of treatment.

Unraveling the mysteries of the natural killer within us Posted: 24 Oct 2011 08:31 AM PDT Scientists in Australia have discovered more about the intricacies of the immune system in a breakthrough that may help combat viral infections such as HIV. The researchers have discovered more about the critical role Natural Killer cells play in the body's innate immune response.

Study confirms males and females have at least one thing in common: Upregulating X Posted: 24 Oct 2011 08:31 AM PDT In a new study, scientists present experiments supporting a longstanding hypothesis that explains how males can survive with only one copy of the X chromosome. The finding provides clarity to a hotly debated topic in science and provides biologists with more information to interpret experiments involving genetic measurements in males and females.

Run-off, emissions deliver double whammy to coastal marine creatures, study finds Posted: 24 Oct 2011 08:31 AM PDT Increasing acidification in coastal waters could compromise the ability of oysters and other marine creatures to form and keep their shells, according to a new study.

Hold your forces: Mechanical stress can help or hinder wound healing depending on time of application Posted: 24 Oct 2011 08:30 AM PDT A new study demonstrates that mechanical forces affect the growth and remodeling of blood vessels during tissue regeneration and wound healing. The forces diminish or enhance the vascularization process and tissue regeneration depending on when they are applied during the healing process.

Gene variant increases risk of kidney disease in African-Americans Posted: 24 Oct 2011 08:30 AM PDT African-Americans with two copies of the APOL1 gene have about a four percent lifetime risk of developing a form of kidney disease, according to scientists. The finding brings scientists closer to understanding why African-Americans are four times more likely to develop kidney failure than whites.

Researchers build transparent, super-stretchy skin-like sensor Posted: 24 Oct 2011 07:17 AM PDT Using carbon nanotubes bent to act as springs, researchers have developed a stretchable, transparent skin-like sensor. The sensor can be stretched to more than twice its original length and bounce back perfectly to its original shape. It can sense pressure from a firm pinch to thousands of pounds. The sensor could have applications in prosthetic limbs, robotics and touch-sensitive computer displays.

Sleeping sickness drug may provide long-term protection against nonmelanoma skin cancers Posted: 24 Oct 2011 05:47 AM PDT An antiparasitic agent used to treat African sleeping sickness might someday be used to prevent nonmelanoma skin cancers. Researchers found that DFMO, or alpha-difluoromethylornithine, still appeared to protect against nonmelanoma skin cancers years after people stopped taking the drug, according to new research.

New device measures viscosity of ketchup and cosmetics Posted: 24 Oct 2011 05:46 AM PDT A device that can measure and predict how liquids flow under different conditions will ensure consumer products -- from makeup to ketchup -- are of the right consistency.

More time outdoors may reduce kids' risk for nearsightedness, research suggests Posted: 24 Oct 2011 05:46 AM PDT A new analysis of recent eye health studies shows that more time spent outdoors is related to reduced rates of nearsightedness, also known as myopia, in children and adolescents. Myopia is much more common today in the United States and many other countries than it was in the 1970s.

Exposure to chemical BPA before birth linked to behavioral, emotional difficulties in girls Posted: 24 Oct 2011 05:46 AM PDT Exposure in the womb to bisphenol A (BPA) -- a chemical used to make plastic containers and other consumer goods -- is associated with behavior and emotional problems in young girls, according to a new study.

How motherhood behavior is influenced by alterations in brain function Posted: 24 Oct 2011 05:43 AM PDT Instinctive mothering behavior towards care of newborns has long been recognized as a phenomenon in humans and animals, but now research has shown that motherhood is associated with the acquisition of a host of new behaviors that are driven, at least in part, by alterations in brain function.

Bio-engineered protein shows promise as new hemophilia therapy Posted: 23 Oct 2011 10:57 AM PDT A genetically engineered clotting factor that controlled hemophilia in an animal study offers a novel potential treatment for human hemophilia and a broad range of other bleeding problems. A research team took the naturally occurring coagulation factor Xa and engineered it into a variant that safely controlled bleeding in mouse models of hemophilia.

Production of biofuel from forests will increase greenhouse gas emissions, study finds Posted: 23 Oct 2011 10:56 AM PDT The largest and most comprehensive study yet done on the effect of biofuel production from West Coast forests has concluded that an emphasis on bioenergy would increase carbon dioxide emissions from these forests at least 14 percent. The findings are contrary to assumptions and some previous studies that suggest biofuels from this source would be carbon-neutral or even reduce greenhouse gas emissions. In this research, that wasn't true in any scenario.

Laser's precision and simplicity could revolutionize cataract surgery Posted: 23 Oct 2011 10:56 AM PDT Two new studies add to the growing body of evidence that a new approach to cataract surgery may be safer and more efficient than today's standard procedure. The new approach, using a special femtosecond laser, is FDA-approved, but not yet widely available in the United States.

Video games used in new treatment that may fix 'lazy eye' in older children Posted: 23 Oct 2011 10:56 AM PDT A new study conducted in an eye clinic in India found that correction of amblyopia, also called "lazy eye," can be achieved in many older children, if they stick to a regimen that includes playing video games and standard amblyopia treatment.

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