ScienceDaily Health Headlines
for Wednesday, May 11, 2011
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New marker offers hope for more reliable detection of prostate cancer (May 11, 2011) -- A new, promising marker for diagnosing prostate cancer has been discovered by researchers in Sweden with the aid of a unique method. The study may lead to more reliable diagnoses and fewer unnecessary operations. ... > full story
Before you start bone-building meds, try dietary calcium and supplements, experts urge (May 11, 2011) -- Has a bone density scan placed you at risk for osteoporosis, leading your doctor to prescribe a widely advertised bone-building medication? Not so fast! A new study finds that an effective first course of action is increasing dietary calcium and vitamin D or taking calcium and vitamin D supplements. ... > full story
Faking it: Can ads create false memories about products? (May 11, 2011) -- People who read vivid print advertisements for fictitious products actually come to believe they've tried those products, according to a new study. ... > full story
Genes, not race, determine donor kidney survival; Implications for kidney transplant recipients and kidney donors (May 11, 2011) -- A new study sheds light on what causes certain kidneys to do better than others after being transplanted, providing doctors with an easy way to screen for donor kidneys that have the best chance of survival. ... > full story
Alzheimer's-related protein disrupts motors of cell transport (May 11, 2011) -- A protein associated with Alzheimer's disease clogs several motors of the cell transport machinery critical for normal cell division, leading to defective neurons that may contribute to the memory-robbing disease, researchers report. ... > full story
Children held captive in smoky vehicles (May 11, 2011) -- It is absolutely unacceptable to subject children to any tobacco smoke exposure in cars, according to experts. ... > full story
RNA spurs melanoma development; Potential new diagnostic marker for skin cancer (May 10, 2011) -- Researchers have discovered that long, non-coding RNA (lncRNA) levels are altered in human melanoma. Their study shows that one lncRNA called SPRY4-IT1 is elevated in melanoma cells, where it promotes cellular survival and invasion. ... > full story
Genetic information may help predict likelihood of survival following chemotherapy for breast cancer (May 10, 2011) -- Development of a predictive test that included genomic signatures that indicated chemoresistance, chemosensitivity and endocrine sensitivity for women with newly diagnosed breast cancer identified patients with a high probability of survival following chemotherapy, according to a new study. ... > full story
Neuromarketing helps illuminate how we choose what we put in our shopping basket (May 10, 2011) -- 'Neuromarketing', is a relatively new field of consumer and market research, which uses brain imaging and measurement technology to study the neural processes underlying an individual's choice. ... > full story
New method to diagnose heart arrhythmias: First non-invasive technique to directly map electrical activation of the heart (May 10, 2011) -- Abnormalities in cardiac conduction are a major cause of death and disability around the world. Researchers have been developing a new method, Electromechanical Wave Imaging (EWI), that is the first non-invasive technique to map the electrical activation of the heart. Based on ultrasound imaging, EWI will enable doctors to treat arrhythmias more efficiently and more precisely. ... > full story
Vitamin D deficiency in pneumonia patients associated with increased mortality (May 10, 2011) -- A new study reveals that adult patients admitted to the hospital with pneumonia are more likely to die if they have vitamin D deficiency. ... > full story
Scientists unmask mysterious cells as key 'border patrol agents' in the intestine (May 10, 2011) -- Researchers have uncovered new clues about how the intestine maintains friendly relations with the 100 trillion symbiotic bacteria that normally live in the digestive tract. ... > full story
Connectivity brain networks essential for voluntary action control (May 10, 2011) -- Which brain mechanisms can we use to consciously suppress behavior? Psychologists in the Netherlands have demonstrated that voluntary action control -- such as braking in time for a traffic light -- is achieved through connectivity (cooperation) between two prominent networks in the brain: the hyper-direct and indirect pathways. It also appears that communication between the higher (developed later) and the more basal brain areas predicts how efficiently people can suppress their behavior on time. ... > full story
On 9/11, Americans may not have been as angry as you thought they were (May 10, 2011) -- On September 11, 2001, the air was sizzling with anger -- and the anger got hotter as the hours passed. That, anyway, was one finding of a 2010 analysis of 85,000 pager messages sent that day. The researchers employed a commonly used tool called Linguistic Inquiry and Word Count, or LIWC, which teases out information from the frequency of word usages in texts. But were Americans really so angry? ... > full story
Scientists reveal nerve cells' navigation system (May 10, 2011) -- Scientists have discovered how two closely related proteins guide projections from nerve cells with exquisite accuracy, alternately attracting and repelling these axons as they navigate the most miniscule and frenetic niches of the nervous system to make remarkably precise connections. ... > full story
Open-access colonoscopy is safe, study finds (May 10, 2011) -- Nurse-driven, open-access colonoscopy programs are as effective and safe as colonoscopy following a consultation with a gastroenterologist, according to researchers. ... > full story
Self-embedding behavior and other forms of self-injury should be responded to quickly, experts urge (May 10, 2011) -- While the disturbing act of self-injury is nothing new to adolescents, researchers and physicians have identified a more severe type of behavior that is raising some concern among medical professionals. Often misdiagnosed, ignored and under-reported, self-embedding behavior (SEB) is a form of self-injurious behavior that involves inserting foreign objects into soft tissue -- either under the skin or into muscle. ... > full story
Obesity creates wimpy rats (May 10, 2011) -- Obesity appears to impair normal muscle function in rats, an observation that could have significant implications for humans, according to new research. ... > full story
Estrogen-lowering drugs reduce mastectomy rates for breast cancer patients, study suggests (May 10, 2011) -- In the first large trial of its kind in the United States, researchers have shown that estrogen-lowering drugs can shrink tumors and reduce mastectomy rates for patients with stage 2 or 3 breast cancer. ... > full story
Teenage alcohol consumption associated with computer use (May 10, 2011) -- Teenagers who drink alcohol spend more time on their computers for recreational use, including social networking and downloading and listening to music, compared with their peers who don't drink. ... > full story
Short term use of painkillers could be dangerous to heart patients (May 10, 2011) -- Short-term use of some painkillers could still be dangerous for people who've had a heart attack. The time-to-event observational research found "no safe window" for NSAID use among heart attack survivors. The non-selective NSAID diclofenac was associated with early onset risk similar to the selective COX-2 inhibitor rofecoxib. ... > full story
Dementia, mild cognitive impairment common in 'oldest old' women (May 10, 2011) -- Mild cognitive impairment, dementia, and their subtypes are common in the "oldest old" women, which includes those 85 years of age and older, according to a new study. ... > full story
Findings suggest significant bias in TASER safety studies, according to team of heart doctors (May 10, 2011) -- The ongoing controversy surrounding the safety of using TASER electrical stun guns is taking a new turn with the announcement of findings by a team of cardiologists suggesting that much of the current TASER-related safety research may be biased due to ties to the devices' manufacturer, TASER International, Inc. ... > full story
Heart medication best at bedtime, animal study suggests (May 10, 2011) -- Many doctors give heart drugs to patients in the morning. But a new study has revealed angiotensin-converting enzyme (ACE) inhibitors -- commonly given to patients with high blood pressure or after a heart attack or during heart failure -- improve heart structure and function when given at sleep time. In fact, when administered during wake time, ACE inhibitors are no more effective than a placebo. The research findings are based on a study conducted on mice with high blood pressure. ... > full story
Evidence insufficient on relationship of modifiable factors with risk of Alzheimer's disease (May 10, 2011) -- The available evidence is insufficient to draw firm conclusions about the association of modifiable factors and risk of Alzheimer's disease, according to a new study. ... > full story
We actually 'become' happy vampires or contented wizards when reading a book (May 10, 2011) -- Bad news for muggle parents! A new study by psychologists finds that we more or less "become" vampires or wizards just by reading about them. ... > full story
Research identifies risk factors associated with progression of glaucoma (May 10, 2011) -- Elevated pressure inside the eye, cornea thinning, and visual field loss are all markers that glaucoma may progress, according to a new study. ... > full story
Single bioptic telescope for low vision driving may not obscure road view of second eye (May 10, 2011) -- A bioptic telescope on one lens of a pair of glasses used to magnify traffic signs and lights may not prevent the wider view of the road with the second eye, study suggests. ... > full story
Health professionals appear concerned about bias in commercially funded continuing medical education (May 10, 2011) -- Commercial funding of continuing medical education and the potential for bias appear to concern many health care practitioners and researchers, but many reported being unwilling to pay higher fees to eliminate or offset commercial funding sources, according to a new report. ... > full story
Administration of erythropoietin to patients with heart attack who undergo coronary intervention procedures (May 10, 2011) -- Intravenous administration of epoetin alfa, a product that stimulates red blood cell production, to patients with heart attack who were undergoing percutaneous coronary intervention (PCI; procedures such as balloon angioplasty or stent placement used to open narrowed coronary arteries), did not provide reduction in the size of the heart muscle involved and was associated with higher rates of adverse cardiovascular events, according to a new study. ... > full story
Patients often do not receive optimal medical therapy before and after percutaneous coronary intervention (May 10, 2011) -- Despite guideline-based recommendations that underscore the importance of optimal medical therapy (OMT) for patients with stable coronary heart disease undergoing percutaneous coronary intervention (PCI; procedures such as balloon angioplasty or stent placement used to open narrowed coronary arteries), data from a cardiovascular registry indicate that less than half of these patients are receiving OMT before PCI and approximately one-third are not receiving OMT at discharge following PCI, according to a new study. ... > full story
Less than half of patients with MS continually adhere to drug therapies for treatment, Canadian study finds (May 10, 2011) -- Disease-modifying drugs (DMDs) are injected medications used to slow the progression of multiple sclerosis, and have been shown to reduce the frequency and severity of relapses. But according to a new Canadian study, adherence to all DMDs is low, with less than half of patients, or 44 per cent, continually adherent after two years. ... > full story
Two new studies describe likely beneficiaries of health care reform in California (May 10, 2011) -- The majority of the 4.6 million Californians likely to be eligible for health coverage under health care reform's new California Health Benefits Exchange and the expansion of Medi-cal are also those who may be least likely to be excessive users of costly health services: men, singles, and the working age, according to two new policy briefs. ... > full story
New sepsis discovery goes straight to the heart to save lives (May 9, 2011) -- New research in rats and mice offers hope for stopping the devastating, and often fatal, effects of sepsis in humans. Researchers show how neutralizing the effects of a key protein fragment, called C5a, used by the immune system to attract white blood cells may ultimately prevent heart failure. ... > full story
Genes an important factor in urinary incontinence (May 9, 2011) -- Much of the risk of developing incontinence before middle age is determined by our genes. Genetic factors can explain half of people's susceptibility to urinary incontinence, a study of twins reveals. ... > full story
Sexy clothes -- too much, too young: Study reveals that a significant proportion of young girls' clothing is sexualized (May 9, 2011) -- Are clothing manufacturers helping to turn young girls into sex objects? According to a new study, up to 30 percent of young girls' clothing available online in the US is 'sexy' or sexualizing. The study's authors say this has serious implications for how girls evaluate themselves according to a sexualized model of feminine physical attractiveness. It makes them confront the issue of sexual identity at a very young age. ... > full story
Fast, sensitive blood test for human prion disease (May 9, 2011) -- Scientists have developed a method -- 10,000 times more sensitive than other methods -- to detect variant Creutzfeldt-Jacob disease (vCJD) in blood plasma. vCJD is a type of prion disease in humans that leads to brain damage and death. The researchers also used the test to rapidly detect scrapie, a prion disease of sheep, in infected hamsters, some pre-symptomatic. ... > full story
Nitric oxide impacts source of sickle cell pain crisis, study suggests (May 9, 2011) -- Nitric oxide gas appears to directly impact the source of the classic, disabling pain crises of sickle cell disease, researchers report. ... > full story
Dinner with the in-laws: Why does knowing how long a bad experience will last make it worse? (May 9, 2011) -- Knowing how long a good experience will last makes it better, but being aware of the duration of an unpleasant event makes it worse, according to a new study. But people usually predict the opposite effect. ... > full story
New hope for treatment of painful adult shingles (May 9, 2011) -- Researchers have discovered a compound with the potential to be more effective than existing agents in treating the very painful blisters known as shingles -- a condition that affects up to 30 percent of Americans, mostly elderly, and for which no specific treatment exists. ... > full story
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