ScienceDaily Top Science Headlines
for Wednesday, March 2, 2011
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Tonsillectomy linked to excess weight gain in kids (March 2, 2011) -- Tonsillectomy is the most common major surgical procedure performed in children. Children who undergo the surgical removal of their tonsils (tonsillectomy), with or without the removal of their adenoids (adenoidectomy), are at increased risk for becoming overweight after surgery, according to new research. ... > full story
Scientists synthesize long-sought-after anticancer agent (March 2, 2011) -- Scientists have synthesized for the first time a chemical compound called lomaiviticin aglycon, leading to the development of a new class of molecules that appear to target and destroy cancer stem cells. ... > full story
Popular psychology theories on self-esteem not backed up by serious research, study finds (March 2, 2011) -- Low self-esteem is associated with a greater risk of mental health problems such as eating disorders and depression. From a public health perspective, it is important for staff in various health-related professions to know about self-esteem. However, there is a vast difference between the research-based knowledge on self-esteem and the simplified popular psychology theories that are disseminated through books and motivational talks, reveals new research from Sweden. ... > full story
Findings on pollution damage to human airways could yield new therapies (March 2, 2011) -- Researchers have identified how nanoparticles from diesel exhaust damage lung airway cells, a finding that could lead to new therapies for people susceptible to airway disease. The scientists also discovered that the severity of the injury depends on the genetic make-up of the affected individual. ... > full story
Biochemists offer first 3-D model of asthma-causing inflammation enzyme (March 2, 2011) -- Scientists have developed the first 3-D model of Human 5-Lipoxygenase, or 5-LOX, the molecule responsible for creating inflammatory compounds that provoke asthma. This model will serve as a target for the design of new, more effective asthma medication. ... > full story
Unemployment: A health risk (March 2, 2011) -- Compared to people in employment, men and women who are unemployed suffer more often and longer from both physical and emotional complaints. Why should the unemployed have more health problems? ... > full story
More than allergies: Histamine may be a possible drug target for multiple sclerosis (March 1, 2011) -- If you think histamines are your nemesis during allergy season, here's something that might change your perspective. New research shows that histamine could be an important molecule to developing new treatments for multiple sclerosis. In the study, the scientists analyzed the role of histamine in an animal model of multiple sclerosis and found that histamine plays a critical role in preventing MS or lessening its effects. ... > full story
Essential oil pill prevents PMS, study suggests (March 1, 2011) -- A pill containing a mix of essential oils has been shown to significantly reduce the symptoms of premenstrual syndrome. Researchers tested the tablets by carrying out a randomized, controlled trial in 120 women. ... > full story
Best friends can make a child more physically active (March 1, 2011) -- Boys and girls who take part in physical activity with their best friend in the neighborhood where they live have higher levels of physical activity, new research by academics in the UK have found. ... > full story
Signaling path in brain may prevent that 'I'm full' message (March 1, 2011) -- Researchers have identified a signaling pathway in the brain that's sufficient to induce cellular leptin resistance, a problem that decreases the body's ability to "hear" that it is full and should stop eating. ... > full story
Surgeons predict the future of nanomedicine in practice (March 1, 2011) -- A new review explores how nanotechnology may provide powerful new tools that could have a marked impact on the therapeutic and diagnostic measures available to surgeons. ... > full story
Higher job performance linked to people who are more honest and humble (March 1, 2011) -- The more honesty and humility an employee may have, the higher their job performance, as rated by the employees' supervisor. A new study that found the honesty-humility personality trait was a unique predictor of job performance. ... > full story
New CPR method increases survival rate by 50 percent, study suggests (March 1, 2011) -- A five-year clinical trial has led to a new method of cardiopulmonary resuscitation (CPR) that improves long-term survival rates with good brain function by 50 percent. ... > full story
Large proportion of colorectal cancer deaths could be prevented, study suggests (March 1, 2011) -- A large proportion of the 141,000 cases and 49,000 deaths from colorectal cancer expected in the United States this year could be prevented by increasing the use of established screening tests and by applying existing knowledge about colorectal cancer prevention, researchers say. ... > full story
Beyond tender loving care: 'TLCs' promise health and happiness (March 1, 2011) -- Lifestyle changes -- such as getting more exercise, time in nature or helping others -- can be as effective as drugs or counseling to treat an array of mental illnesses, according to a new article. ... > full story
Vitamin D linked to lung cancer survival, study suggests (March 1, 2011) -- Recent research suggests vitamin D may be able to stop or prevent cancer. Now, a new study finds an enzyme that plays a role in metabolizing vitamin D can predict lung cancer survival. ... > full story
Researchers develop curious snapshot of powerful retinal pigment and its partners (March 1, 2011) -- Scientists have uncovered surprising new details about a key protein-protein interaction in the retina that contributes to the exquisite sensitivity of vision. Additionally, they say, the proteins involved represent the best-studied model of how other senses and countless other physiological functions are controlled. ... > full story
Scientists identify new implications for perennial bioenergy crops (March 1, 2011) -- Scientists have found that converting large swaths of land to bioenergy crops could have a wide range of effects on regional climate. ... > full story
Inability to shake regrets can have effects on physical health (March 1, 2011) -- Although Edith Piaf defiantly sang, "Non, je ne regrette rien," most people will have their share of regrets over their lifetime. Indeed, anyone who seeks to overcome disappointments should compare themselves to others who are worse off -- rather than looking up to folks in more enviable positions -- according to a new study. ... > full story
New personalized therapy causes cancer cells to kill themselves (March 1, 2011) -- A physician-researcher has developed a personalized therapy to treat a wide range of cancers. The treatment is based on a naturally occurring human enzyme that has been genetically modified to fool cancer cells into killing themselves. ... > full story
Compound useful for studying birth defects may also have anti-tumor properties (March 1, 2011) -- In an interesting bit of scientific serendipity, researchers have found that a chemical compound useful for studying the origins of intestinal birth defects may also inhibit the growth and spread of cancerous tumors. ... > full story
One terabit per second data rate on a single integrated photonic chip (March 1, 2011) -- With worldwide Internet data traffic increasing by 50 percent each year, telecommunications companies that handle this digital torrent must be able to economically expand the capacities of their networks while also adapting to new, more-efficient data-handling technologies. Now a development team has achieved data rates of one terabit per second. ... > full story
Full bladder, better decisions? Controlling your bladder decreases impulsive choices (March 1, 2011) -- What should you do when you really, really have to "go"? Make important life decisions, maybe. Controlling your bladder makes you better at controlling yourself when making decisions about your future, too, according to a new study. ... > full story
Neural circuits used in processing basic linguistic phrases identified (March 1, 2011) -- Researchers have isolated neural activity that reflects basic mechanisms used by the brain to combine elementary pieces of language in order to construct complex ideas. ... > full story
Gene variant affects stroke prognosis in humans (March 1, 2011) -- A small difference in DNA sequence predicts the degree of disability after a stroke, according to a new article. Stroke, the consequence of disturbed blood flow to the brain, can impair speech, movement and vision, but it is currently difficult for clinicians to predict the severity of these side effects or the long-term prognosis. ... > full story
'Stupid strategies' could be best for the genes (March 1, 2011) -- Blindly copying what your parents did -- no matter how stupid it may seem -- could be the best strategy for the long-term success of your genes, according to new research. ... > full story
Brain imaging provides window into consciousness (March 1, 2011) -- Using a sophisticated imaging test to probe for higher-level cognitive functioning in severely brain-injured patients provides a window into consciousness -- but the view it presents is one that is blurred in fascinating ways, say researchers. ... > full story
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