ScienceDaily Top Science Headlines
for Friday, August 20, 2010
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Scientists pry new information from disease-causing, shellfish-borne bacterium (August 20, 2010) -- Researchers have uncovered a key weapon in the molecular arsenal the infectious bacterium Vibrio parahaemolyticus (V. para) uses to kill cells and cause food poisoning in its human host. ... > full story
Cervical cancer: Drug and radiotherapy treatment saves lives, researchers find (August 20, 2010) -- Medical researchers in the UK have made a significant advance in the treatment of cervical cancer. They have demonstrated that the use of a particular drug in collaboration with radiotherapy gives significantly better results than radiotherapy alone. ... > full story
Scientist IDs genes that promise to make biofuel production more efficient, economical (August 20, 2010) -- Metabolic engineers have taken the first step toward the more efficient and economical production of biofuels by developing a strain of yeast with increased alcohol tolerance. Overexpression of a particular gene increased ethanol volume by more than 70 percent and ethanol tolerance by more than 340 percent compared to the control strain. ... > full story
Male scientists regret parenthood decisions more than female counterparts, sociologist finds (August 20, 2010) -- Many scientists in academia bemoan the fact that their lifestyles do not allow them to have as many children as they would like. Surprisingly, male scientists harbor more regrets than female scientists, according to a new sociology study. ... > full story
Genetics underlie formation of body's back-up bypass vessels (August 20, 2010) -- Researchers have uncovered the genetic architecture controlling the growth of the collateral circulation -- the "back-up" blood vessels that can provide oxygen to starved tissues in the event of a heart attack or stroke. ... > full story
New biological find gives consequences for doping offence (August 20, 2010) -- Exercise induces the incorporation of nuclei in muscle fibers that may help the fibers regain size upon retraining after a period of atrophy brought on by muscle disuse, according to a study. Exercise enthusiasts know all too well that strength training of muscles leads to an increase in muscle size that is lost when the training is discontinued; the muscle fibers atrophy because of inactivity. But the mechanism by which previous episodes of training help atrophied fibers regain size relatively soon after retraining has long remained a mystery. ... > full story
New ways to chart our maritime past (August 20, 2010) -- By combining meteorology and archaeology, scientists may discover old sea routes and mooring sites, and boost our knowledge of ancient maritime culture. ... > full story
Workplace wellness plan saves money over the long-term, new study shows (August 20, 2010) -- A Midwest utility company learned firsthand that it pays to keep healthy employees fit, reaping a net savings of .8 million in employee health and lost work time costs over nine years. ... > full story
Prenatal exposure to pesticides linked to attention problems in children (August 19, 2010) -- Children who were exposed to organophosphate pesticides before birth were more likely to develop attention disorders years later, according to a new study. Researchers linked higher maternal concentrations of pesticide metabolites during pregnancy to greater odds of attention problems in children at age 5. The study adds to a growing body of evidence that organophosphate pesticide exposure can impact human health. ... > full story
Common hypertension drugs can raise blood pressure in certain patients (August 19, 2010) -- Commonly prescribed drugs used to lower blood pressure can actually have the opposite effect -- raising blood pressure in a statistically significant percentage of patients. A new study suggests that doctors could avoid this problem -- and select drugs most suitable for their patients -- by measuring blood levels of the enzyme renin through a blood test that is becoming more widely available. ... > full story
Binge drinking increases death risk in men with high blood pressure (August 19, 2010) -- If you have high blood pressure, binge drinking may severely increase your risk of dying from a stroke or heart disease. In a South Korean study, middle-aged male binge drinkers had a 4- to 12-fold increased risk of fatal cardiovascular event. It is unclear whether the results can be generalized to other populations. ... > full story
With muscle-building treatment, mice live longer even as tumors grow (August 19, 2010) -- In the vast majority of patients with advanced cancer, their muscles will gradually waste away for reasons that have never been well understood. Now, researchers have found some new clues and a way to reverse that process in mice. What's more, animals with cancer that received the experimental treatment lived significantly longer, even as their tumors continued to grow. ... > full story
Breast cancer survivors don't need to be afraid of air travel, study suggests (August 19, 2010) -- A new study indicates certain precautions about the risk of lymphedema for breast cancer survivors are outdated. ... > full story
Slowing urban sprawl, adding forests curb floods and help rivers (August 19, 2010) -- Controlling urban growth and increasing forested land are the most effective ways to decrease future water runoff and flooding, according to a new study. ... > full story
Brain network links cognition, motivation (August 19, 2010) -- Whether it's sports, poker or the high-stakes world of business, there are those who always find a way to win when there's money on the table. Now, for the first time, psychology researchers are unraveling the workings of a novel brain network that may explain how these "money players" manage to keep their heads in the game. ... > full story
Targeting hit-and-run cancer viruses (August 19, 2010) -- Viruses that can invade host cells, initiate cancer and then flee from their own trail of destruction could be stopped in their tracks, say researchers. ... > full story
Gender bender: Do gender knee implants provide better outcomes? (August 19, 2010) -- A recent study found that 85 women who received a gender-specific implant in one knee and a standard prosthesis in the other knee found no clinical benefits of the gender-specific knee. ... > full story
Six-year-olds with squint less likely to be invited to birthday parties, study suggests (August 19, 2010) -- Six-year-olds with a squint are significantly less likely to be invited to birthday parties than their peers with normally aligned eyes, suggests new research. ... > full story
A cure for HIV could be all in the 'mix' (August 19, 2010) -- Current HIV treatments do not eradicate HIV from host cells but rather inhibit virus replication and delay the onset of AIDS. However, new research has yielded an innovative approach to eliminate HIV in host by targeted killing of only HIV infected cells. This approach if successful could lead into an anti-HIV therapy that will eradicate the virus. ... > full story
Overweight American children and adolescents becoming fatter (August 19, 2010) -- Overweight American children and adolescents have become fatter over the last decade, according to a new study that found adiposity shifts across sociodemographic groups over time and found US children and adolescents had significantly increased adiposity measures such as body mass index, waist circumference and triceps skinfold thickness. The increases in adiposity were more pronounced in some sex-ethnic groups such as black girls. ... > full story
Internet access at home increases the likelihood that adults will be in relationships, study finds (August 19, 2010) -- Adults who have Internet access at home are much more likely to be in romantic relationships than adults without Internet access, according to new research. ... > full story
Surprise in genome structure linked to developmental diseases (August 19, 2010) -- The genes that are responsible for maintaining each cell type form DNA loops that link control elements for these genes. The DNA loop structure is essential for regulating the activity of cell-type-specific genes and thus maintaining cell state. Problems with the loop structure can cause multiple syndromes and diseases, including Opitz-Kaveggia syndrome, Lujan syndrome, schizophrenia and Cornelia de Lange syndrome. ... > full story
Stress in middle age could contribute to late-life dementia (August 19, 2010) -- Psychological stress in middle age could lead to the development of dementia later in life, especially Alzheimer's disease, reveals research from Sweden. Based on data from a study which followed women for 35 years, this is the first research in Sweden to indicate a link between stress and dementia. ... > full story
Even modest weight gain can harm blood vessels, researchers find (August 19, 2010) -- Researchers have found that healthy young people who put on as little as nine pounds of fat, specifically in the abdomen, are at risk for developing endothelial cell dysfunction. Endothelial cells line the blood vessels and control the ability of the vessels to expand and contract. ... > full story
Drug-eluting stents confirmed safe, effective for long-term use, study suggests (August 19, 2010) -- Researchers have determined that the use of drug-eluting stents improves the long-term clinical outcome for patients undergoing percutaneous coronary intervention, commonly known as angioplasty. ... > full story
HVAC ducts can be used for wireless monitoring technology (August 19, 2010) -- Scientists have found a way to implement wireless monitoring technology -- with uses ranging from climate control to health and safety applications -- by tapping into a building's heating, ventilating and air-conditioning (HVAC) ducts. The finding could lead to significant time and cost savings for builders and building managers. ... > full story
Headaches in teens tied to overweight, smoking and lack of exercise (August 19, 2010) -- Teens who are overweight, get little exercise or who smoke may be more likely to have frequent headaches and migraines than teens with none of these factors, according to a new study. ... > full story
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